EP2777877A1 - Finishing line of a metal product - Google Patents

Finishing line of a metal product Download PDF

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Publication number
EP2777877A1
EP2777877A1 EP13290060.6A EP13290060A EP2777877A1 EP 2777877 A1 EP2777877 A1 EP 2777877A1 EP 13290060 A EP13290060 A EP 13290060A EP 2777877 A1 EP2777877 A1 EP 2777877A1
Authority
EP
European Patent Office
Prior art keywords
finishing line
product
stripping
finishing
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13290060.6A
Other languages
German (de)
French (fr)
Inventor
Emmanuel Auger
Philippe Podda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Original Assignee
Siemens VAI Metals Technologies GmbH Austria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH Austria
Priority to EP13290060.6A priority Critical patent/EP2777877A1/en
Priority to PCT/EP2013/075037 priority patent/WO2014139604A1/en
Priority to ES13817656T priority patent/ES2869949T3/en
Priority to EP13817656.5A priority patent/EP2969389B1/en
Priority to PL13817656T priority patent/PL2969389T3/en
Priority to CN201380074590.6A priority patent/CN105050769B/en
Publication of EP2777877A1 publication Critical patent/EP2777877A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • B24B7/13—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work grinding while stock moves from coil to coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/086—Descaling; Removing coating films

Definitions

  • the present invention relates to a finishing line of a metal product according to the preamble of claim 1.
  • a finishing line of metal product customary can receive at its entrance a mix of oxidized products or pickled, but do not transform the oxidation state of said products such as a line stripping would do it.
  • a skin pass mill or a planeuse of which are generally integrated equipment on the finishing line resorb only partially a layer of oxide of a product and can not replace a real process of complete stripping on a line s dedicating to it.
  • stripping of an oxidized product is carried out in a pickling line that is distinct from the finishing line.
  • a pickling line that is distinct from the finishing line.
  • a stripping line installed complementarily to its finishing line involves a considerable additional cost and means winding / unwinding, transport logistics and considerable exploitation between the two lines.
  • Said pickling lines generally comprise acid or base tanks dedicated to the pickling process and which are brought into contact with the product in scrolling in said bins. Even if these facilities are performing at the level of quality and productivity, they are expensive, large in size especially in terms of length and quite complex to exploit because their maintenance is not conducive to the environment, expensive and potentially dangerous with regard to the chemical process used, which consequently implies complicated and costly protection, treatment, storage and recycling measures.
  • Line and pickling methods include stripping means by mechanical, vibratory or optical abrasion.
  • mechanical abrasion systems are known and described under KR20120074154A , US7601226B2 , US8062095B2 .
  • An ultrasonic vibratory abrasion system is known and described by KR20030017013A .
  • a laser abrasion system is known and described by EP0927595A1 .
  • the aim of the present invention is to make it possible to simplify logistics and to minimize or even eliminate transit, storage and coupling installations between a finishing line and a pickling line, given that a finishing line does not have any on the other hand, there is no obligation to strip if the incoming product is stripped.
  • a metal product finishing line is thus proposed through the features of claim 1.
  • a set of subclaims also has advantages of the invention.
  • a finishing line operator can thus, for products with overt oxidation, let his product pass through the pickling system inserted and activated in the finishing line in order to avoid so-called operating problems, logistics, transit, coupling of the aforementioned lines.
  • a simple bypass circuit or an active stripping function stoppage of the product in transit through the stripping system can to be initiated.
  • finishing line entry can receive mixed products of the oxidized or pickled type
  • said type can be identified in order to switch the pickling system in an activation or inactivation mode.
  • a finish line according to the invention with untracked products and to output a finished finished product downstream of the line by the means of the said line, that is to say with a pickled or unpeeled surface according to the request of the operator.
  • a finishing line comprising a pickling system being free of base acid or salts (salts of acid or base) dedicated to pickling is found to be a preferred embodiment, if this class of system stripping means comprises an interruptible stripping means, such as systems based on at least one mechanical, vibratory or optical stripper, because, unlike acidic tanks, for example, such mechanical stripping, vibratory or optical stripping systems are used.
  • an interruptible stripping means such as systems based on at least one mechanical, vibratory or optical stripper, because, unlike acidic tanks, for example, such mechanical stripping, vibratory or optical stripping systems are used.
  • the stripping system can be easily and frequently switched operationally according to flexibility needs related to a backlog to produce re, in active or inactive mode without transient phase related to the flow of products entering or even stopping products of various types in successive scrolling.
  • productivity can be greatly increased and the type of product processed by a single finishing line will be considerably extended, resulting in a much greater and faster return on investment than on proposed finishing lines. previously without stripping.
  • the stripping system can be activated or inactivated according to information (by operator / file / recognition / etc.) On the oxidation state of the product at the entrance of the finishing line, said information being delivered to a control module of the pickling system.
  • Advantageous provisions of the stripping system in a finishing line consists in arranging it downstream or upstream of a leveling equipment of a finishing line such as a decontamination pre-planer, a skin pass mill and / or a planeuse.
  • the finishing line according to the invention provides that the pickling system is preferably free of acid, base or salts (acid or base salts) dedicated to pickling, ideally by a projection system on the product of a stripping compound such as by means of an abrasive solid material and, if necessary, a deputy liquid.
  • the abrasive solid material may comprise particles and / or solid grains (such as metal shot, sand, etc.) and the liquid, if necessary, comprises at least water.
  • the liquid may also or alternatively comprise at least one oxidation inhibitor.
  • the projection system on the product may then comprise at least one ejection turbine of the stripping compound.
  • the projection system on the product may comprise at least one nozzle or diffuser / injector projection powered by the pressurized liquid and the abrasive solid material.
  • Said projection systems are arranged by local insertion in the finishing line at at least one single location or several successive locations, or even relocated around the initial finishing line equipment, so that their arrangement is as compact as possible so maintain the size of the minimum / original finish line.
  • the pickling system is free of acid, base or salts (acid or base salts) dedicated to pickling, ideally by at least one electromagnetic emission system such as in the optical domain of laser radiation scanning by continuous vaporization impact on the product surface and / or electromagnetic radiation that can also be generated by the effect of high power laser radiation as described in EP0927595A1 .
  • Such a system is very compact and can be easily inserted, disposed at many points of entry and / or exit of finishing equipment. High stripping power is achieved by multiplying the number of these highly compact stripping systems along the finishing line.
  • the finish line according to the invention can provide that the pickling system is free of acid, base or salts (acid or base salts) dedicated to pickling, ideally by at least one generator vibratory system. ultrasonic waves acting in a suitable liquid tank such as water in which the product runs.
  • the stripping system ideally free of acid, base or of salts (acid or base salts) dedicated to the stripping, inserted requires only a few meters in length and can also be inserted easily between the equipments of the finish line (unlike the acid tank of several tens of meters in a line of stripping scrolling comparable scroll speed).
  • the finishing line provides that an introduction of an oxidation inhibitor on the pickling system can be activated, modulated or inactivated depending on information on the desired duration of maintenance of the state. excluding oxidation of the product, such as a strip or a plate, coming off pickled from the finishing line, said information being delivered to a control module of the pickling system.
  • finishing lines All the equipment composing the finishing lines are not shown in detail in the following figures in order to give clear and simple examples of various main types of finishing lines required on the market according to the invention. Only the main equipment thus appears, because the person skilled in the art knows that it is necessary to associate ancillary equipment such as, for example, preparations of reel tape heads, pinch rollers for belt driving, spinning, brushing, drying of Tape, waste disposal systems, feed trolley and output of reels and pack of plates, etc. In addition, the composition of equipment of the line may vary depending on the optional finishing types or not according to the wishes of the user.
  • Figure 1 presents a finishing line comprising a skin pass mill (SPM) installation adapted for a coil-to-reel production transfer between the input and the line output.
  • the product (1) such as a metal strip is unwound on a roll-off machine (DER), then successively passes a pre-planer for head tape decoupling (PrPI), the skin pass mill (SPM), the pickling system (DECA) being ideally free of acid, base or salts (acid or base salts) dedicated to a stripping of the product, a shear cross-section and sampling (CIS) and finally the product (2) transformed leaving the line is re-wound on a winder (BOB).
  • DER roll-off machine
  • PrPI head tape decoupling
  • SPM skin pass mill
  • DECA pickling system
  • CIS shear cross-section and sampling
  • Figure 2 presents a finishing line comprising a skin pass mill (SPM) and live planing installation adapted for producing a reel to reel or plate reel transfer between the input and the line output.
  • the product (1) such as a metal strip is uncoiled on a reel (DER) and then successively passes a pre-debonding planer (PrPI) of the tape head, the skin pass mill (SPM), optionally a stretcher under tension (PlaST), a shear of banks (CIS), the stripping system (DECA) being ideally free of acid, base or salts (salts of acid or base) dedicated to a stripping of the product , a cross-section shear (CIS), sampling and dividing coil or cutting plates to length and finally the product (2) transformed outgoing line is either re-wound on a winder (BOB) is stacked in packets of plates on a stacker (EMP).
  • PrPI pre-debonding planer
  • laST stretcher under tension
  • CIS shear of banks
  • the figure 3 presents a finishing line including an optional skin pass mill length (SPM) cut-to-fit facility for producing a plate coil transfer between the line inlet and the line outlet.
  • the product (1) such as a metal strip is unwound on a unrolling machine (DER), then passes successively a precut pre-planer (PrPI) band head, optionally the skin pass mill (SPM) , a planing machine (Pla), the pickling system (DECA) being ideally free of acid, base or salts (acid or base salts), dedicated to a pickling of the product, a shear (CIS) cutting transverse length which cuts the strip of plates (3), said plates being then stacked in packages on a stacker (EMP).
  • DER unrolling machine
  • PrPI precut pre-planer
  • Pla planing machine
  • the pickling system DECA
  • CIS shear
  • Figure 4 presents a finishing line comprising a slitting installation (REFD) of coils.
  • the product (1) such as a metal strip is uncoiled on a unrolling machine (DER) and successively passes a planer (Pla), a shear (CIS) of cross section, the stripping system (DECA) being ideally free of acid, base or salts (acid or base salts) dedicated to a stripping of the product, then a longitudinal strip slitter (REFD), a looper (BOUC) adaptation of speed of scrolling the web, a belt tensioner (TENS) providing the web tension necessary for its re-winding of the product (2) on a winder (BOB).
  • Figure 5 presents a finish line inspection facility (INSP), comprising: at the line entry, the product (1) such as a metal strip which is unwound on a unrolling machine (DER) and successively passes a planer (Pla), a shearing shear (IRB), the pickling system (DECA) being ideally free of acid, base or salts (acid or base salts) dedicated to a stripping of the product, then an inspection station ( INSP), a shear (CIS) cross-section and sampling and finally the product (2) transformed leaving the line is re-wound on a winder (BOB) or optionally is stacked in packs of plates on a stacker ( EMP), the plates being cut to length by the shears (CIS).
  • INSP inspection station
  • CIS shear cross-section
  • Figure 6 presents a finishing line comprising a leveling installation.
  • the product (1) such as a metal strip is unwound on a unrolling machine (DER), then passes successively a pre-leveling machine (PrPla) of the tape head, a shear (CIS) a shear of cross-section, a welder (SOUD) of incoming band head continuity (1) with the tail of a previous strip running downstream, a planer under tension (PlaST), the stripping system (DECA) being ideally free of acid, base or salts (salts of acid or base) dedicated to a stripping of the product, a shear (CIS) of cross section of continuous strip division, and finally the product (2)) transformed , out of line is re-wound on a winder (BOB).
  • DER unrolling machine
  • PrPla pre-leveling machine
  • CIS shear
  • SOUD welder
  • Figure 7 presents a finishing line comprising an incoming plate leveling installation (1 ') such as heavy plate for example.
  • the product (1 ') such as a strong metal plate
  • TTR roller table transfer means
  • CIS shear
  • Pla planing machine
  • DECA pickling system
  • EMP electrowetting machine
  • the line input can be connected to a shearing line (LCIS) dedicated to the formatting of mother plates cut by a set of shears with transverse and longitudinal cut with respect to the direction of travel of the product, this line
  • LCIS shearing line
  • the shears replace the simple shear (CIS) mentioned above.

Abstract

The line has a stripping system (DECA) positioned at periphery of an inlet or an outlet of products (1, 2) of one of finishing devices making the line. A finishing line inlet receives oxidized or stripped type mixed products, where the type of the product is identified in order to switch the stripping system to a stripping activation or inactivation mode. The system is free from acid, base or salts of acid or base dedicated to stripping. The stripping system comprises an interruptible stripping unit based on mechanical, vibratory or electromagnetic stripper e.g. optical stripper.

Description

La présente invention concerne une ligne de finition d'un produit métallique selon le préambule de la revendication 1.The present invention relates to a finishing line of a metal product according to the preamble of claim 1.

Une ligne de finition de produit métallique (telle que des bandes ou des plaques en défilement) usuelles peut recevoir à son entrée une mixité de produits oxydés ou décapés, mais ne transforment pas l'état d'oxydation des dits produits tel qu'une ligne de décapage le ferait. En effet, un skin pass mill ou une planeuse de qui sont des équipements généralement intégrés sur ligne de finition ne résorbent que partiellement une couche d'oxyde d'un produit et ne peuvent se substituer à un réel procédé de décapage complet sur une ligne s'y dédiant.A finishing line of metal product (such as strips or scrolling plates) customary can receive at its entrance a mix of oxidized products or pickled, but do not transform the oxidation state of said products such as a line stripping would do it. Indeed, a skin pass mill or a planeuse of which are generally integrated equipment on the finishing line resorb only partially a layer of oxide of a product and can not replace a real process of complete stripping on a line s dedicating to it.

C'est pourquoi, en cas d'oxydation à résorber totalement, un décapage d'un produit oxydé est réalisé dans une ligne de décapage distincte de la ligne de finition. Pour une entreprise possédant une ligne de finition de produit métallique (par exemple pour des opérations de planage, skin pass mill, cisaillage divers - rives/longueurs/etc. -, refendage, inspection, bobinage/débobinage, division de bobines, etc.), une ligne de décapage installée complémentairement à sa ligne de finition implique un surcoût considérable et des moyens de bobinage/débobinage, de logistique de transport et d'exploitation considérables entre les deux lignes.This is why, in the case of oxidation to be completely absorbed, stripping of an oxidized product is carried out in a pickling line that is distinct from the finishing line. For a company with a metal product finishing line (eg for planing operations, skin pass mill, shearing various - shorelines / lengths / etc -, slitting, inspection, winding / unwinding, reel division, etc.) , a stripping line installed complementarily to its finishing line involves a considerable additional cost and means winding / unwinding, transport logistics and considerable exploitation between the two lines.

Les dites lignes de décapage comprennent généralement des bacs d'acides ou de bases dédiés au procédé de décapage et qui sont mis en contact avec le produit en défilement dans les dits bacs. Mêmes si ces installations sont performantes au niveau de la qualité et la productivité, elles restent coûteuses, de fortes dimensions en particulier en terme de longueur et assez complexes à exploiter du au fait que leur maintenance est peu propice à l'environnement, onéreuse et potentiellement dangereuse au regard du procédé chimique utilisé qui implique en conséquence des mesures de protection, traitement, stockage et recyclage compliqués et couteux.Said pickling lines generally comprise acid or base tanks dedicated to the pickling process and which are brought into contact with the product in scrolling in said bins. Even if these facilities are performing at the level of quality and productivity, they are expensive, large in size especially in terms of length and quite complex to exploit because their maintenance is not conducive to the environment, expensive and potentially dangerous with regard to the chemical process used, which consequently implies complicated and costly protection, treatment, storage and recycling measures.

D'autres lignes et procédés de décapage comprennent des moyens de décapage par abrasion mécanique, vibratoire ou optique. Plusieurs systèmes par abrasion mécanique sont connus et décrits sous KR20120074154A , US7601226B2 , US8062095B2 . Un système par abrasion vibratoire aux ultrasons est connu et décrit par KR20030017013A . Un système par abrasion laser est connu et décrit par EP0927595A1 .Other lines and pickling methods include stripping means by mechanical, vibratory or optical abrasion. Several mechanical abrasion systems are known and described under KR20120074154A , US7601226B2 , US8062095B2 . An ultrasonic vibratory abrasion system is known and described by KR20030017013A . A laser abrasion system is known and described by EP0927595A1 .

Dans tous les cas, il est nécessaire de transporter le produit de telles lignes de décapage vers une ligne de finition ou inversement, ce qui implique une logistique très lourde et des redondances de moyens de couplage/bobinage ainsi que de génie civil, un surcoût en terme d'exploitation, de consommation d'énergie et une baisse de productivité.In all cases, it is necessary to transport the product of such stripping lines to a finishing line or vice versa, which implies a very heavy logistics and redundancies of coupling / winding and civil engineering means, an additional cost of term of exploitation, energy consumption and a decrease in productivity.

Le but de la présente invention est de permettre de simplifier une logistique et de minimiser voire supprimer des installations de transit, stockage et couplage entre une ligne de finition et une ligne de décapage, sachant qu'une ligne de finition n'a d'une part aucune fonction principale de décapage et d'autre part forcément aucune obligation de décaper si le produit entrant est décapé.The aim of the present invention is to make it possible to simplify logistics and to minimize or even eliminate transit, storage and coupling installations between a finishing line and a pickling line, given that a finishing line does not have any on the other hand, there is no obligation to strip if the incoming product is stripped.

Une ligne de finition de produit métallique est ainsi proposée au travers des caractéristiques de la revendication 1.A metal product finishing line is thus proposed through the features of claim 1.

Un ensemble de sous-revendications présente également des avantages de l'invention.A set of subclaims also has advantages of the invention.

A partir d'une ligne de finition d'un produit métallique, pouvant être soit oxydé soit partiellement voire complètement décapé tel qu'une bande ou une plaque en défilement, la ligne de finition comprend :

  • des équipements de finition composant la ligne de finition ;
  • un système de décapage, le dit système étant disposé à une périphérie d'au moins une entrée ou une sortie du produit d'au moins un des équipements de finition composant la ligne de finition.
From a finishing line of a metal product, which can be either oxidized or partially or even completely etched such as a strip or a plate running, the finish line comprises:
  • finishing equipment composing the finishing line;
  • a stripping system, said system being disposed at a periphery of at least one input or output of the product of at least one of the finishing equipment composing the finishing line.

De cette façon, un opérateur de ligne de finition peut ainsi, pour des produits présentant une oxydation manifeste, laisser transiter son produit dans le système de décapage inséré et activé dans la ligne de finition afin d'éviter ainsi les dits problèmes d'exploitation, de logistique, transit, couplage de lignes précités. Dans le cas de produit déjà décapé en entrée de ligne de finition, c'est-à-dire ne nécessitant pas de décapage, un simple circuit de contournement voire un arrêt de fonction de décapage actif du produit en transit dans le système de décapage peut être initié.In this way, a finishing line operator can thus, for products with overt oxidation, let his product pass through the pickling system inserted and activated in the finishing line in order to avoid so-called operating problems, logistics, transit, coupling of the aforementioned lines. In the case of product already stripped at the finish line entry, that is to say not requiring stripping, a simple bypass circuit or an active stripping function stoppage of the product in transit through the stripping system can to be initiated.

A cet effet et sachant qu'une entrée de ligne de finition peut recevoir des produits mixtes de type oxydé ou décapé, le dit type peut être identifié afin de basculer le système de décapage sous un mode d'activation ou d'inactivation. Ainsi, il est avantageusement possible d'alimenter une ligne de finition selon l'invention avec des produits non décapés et de faire sortir en aval de la ligne un produit transformé fini par les moyens de la dite ligne c'est-à-dire avec une surface décapée ou non décapée selon la demande de l'exploitant.For this purpose and knowing that a finishing line entry can receive mixed products of the oxidized or pickled type, said type can be identified in order to switch the pickling system in an activation or inactivation mode. Thus, it is advantageously possible to supply a finish line according to the invention with untracked products and to output a finished finished product downstream of the line by the means of the said line, that is to say with a pickled or unpeeled surface according to the request of the operator.

En particulier, une ligne de finition comprenant un système de décapage étant libre d'acide" de base ou de sels (sels d'acide ou de base) dédié au décapage s'avère être un mode de réalisation préféré, si cette catégorie de système de décapage comprend un moyen interruptible de décapage, comme des systèmes fondés sur au moins un décapant mécanique, vibratoire ou optique. En effet, à l'inverse des bacs acides par exemples, de tels systèmes de décapage mécanique, vibratoire ou optique présentent une mise en marche ou un arrêt prévisible ainsi que de manière plus rapide voire instantanée et sont plus compacts et économique pour être installés en insertion dans une ligne de finition. Ainsi, si une forte mixité de type d'oxydations de produits est alimentée en entrée de la ligne de finition, le système de décapage peut être facilement et fréquemment basculé opérationnellement suivant des besoins de flexibilité liés à un carnet de commande à produire, en mode actif ou inactif sans phase transitoire lié au flux de produits entrant voire d'arrêt de produits de divers type en défilement successif. La productivité peut ainsi être largement accrue et le type de produit traité par une seule ligne de finition sera considérablement étendu permettant un retour sur investissement bien plus grand et rapide que sur des lignes de finitions proposées précédemment sans décapage. A titre d'exemple, le système de décapage peut être activé ou inactivé en fonction d'une information (par opérateur/fichier/reconnaissance/etc.) sur l'état d'oxydation du produit en entrée de la ligne de finition, ladite information étant délivré à un module de commande du système de décapage.In particular, a finishing line comprising a pickling system being free of base acid or salts (salts of acid or base) dedicated to pickling is found to be a preferred embodiment, if this class of system stripping means comprises an interruptible stripping means, such as systems based on at least one mechanical, vibratory or optical stripper, because, unlike acidic tanks, for example, such mechanical stripping, vibratory or optical stripping systems are used. in operation or a predictable stop as well as faster or instantaneous and are more compact and economical to be installed in insertion in a finishing line.So, if a strong mix of type of product oxidation is fed into the input of the finishing line, the stripping system can be easily and frequently switched operationally according to flexibility needs related to a backlog to produce re, in active or inactive mode without transient phase related to the flow of products entering or even stopping products of various types in successive scrolling. As a result, productivity can be greatly increased and the type of product processed by a single finishing line will be considerably extended, resulting in a much greater and faster return on investment than on proposed finishing lines. previously without stripping. For example, the stripping system can be activated or inactivated according to information (by operator / file / recognition / etc.) On the oxidation state of the product at the entrance of the finishing line, said information being delivered to a control module of the pickling system.

Des dispositions préférentielles du système de décapage dans une ligne de finition consiste à le disposer en aval ou en amont d'un équipement de planage d'une ligne de finition telle qu'une pré-planeuse de décintrage, un skin pass mill et/ou une planeuse.Advantageous provisions of the stripping system in a finishing line consists in arranging it downstream or upstream of a leveling equipment of a finishing line such as a decontamination pre-planer, a skin pass mill and / or a planeuse.

Plus généralement, des exemples de lignes de finition selon l'invention prévoient que les équipements de finition (dont le système de décapage est disposé à leur périphérie) correspondent au moins à une des installations suivantes :

  • d'une installation de skin pass mill adapté pour bobine à bobine ou bobine à plaque,
  • d'une installation de coupe à longueur avec ou sans skin pass,
  • d'une installation de refendage de bobines,
  • d'une installation d'inspection,
  • d'une installation de planage,
  • d'une installation de division de bobines,
  • et/ou d'une installation de cisaillage de rives, etc.
More generally, examples of finishing lines according to the invention provide that the finishing equipment (the stripping system is disposed at their periphery) correspond to at least one of the following installations:
  • a skin pass mill installation adapted for coil to coil or plate coil,
  • a cut-to-length installation with or without a skin pass,
  • a coil splitting installation,
  • an inspection facility,
  • a leveling installation,
  • a coil division plant,
  • and / or a shearing plant, etc.

La ligne de finition selon l'invention prévoit que le système de décapage est préférentiellement libre d'acide, de base ou de sels (sels d'acide ou de base) dédié au décapage, idéalement par un système de projection sur le produit d'un composé décapant tel qu'au moyen d'un matériau solide abrasif et, si besoin, d'un liquide adjoint. En particulier, le matériau solide abrasif peut comprendre des particules et/ou grains solides (telle qu'une grenaille métallique, du sable, etc.) et le liquide, si besoin, comprend au moins de l'eau. Le liquide peut également ou alternativement comprendre au moins un inhibiteur d'oxydation. Pour un tel composé décapant, le système de projection sur le produit peut alors comprendre au moins une turbine d'éjection du composé décapant. Alternativement, le système de projection sur le produit peut comprendre au moins une buse ou diffuseur/injecteur de projection alimenté par le liquide sous pression et le matériau solide abrasif.The finishing line according to the invention provides that the pickling system is preferably free of acid, base or salts (acid or base salts) dedicated to pickling, ideally by a projection system on the product of a stripping compound such as by means of an abrasive solid material and, if necessary, a deputy liquid. In particular, the abrasive solid material may comprise particles and / or solid grains (such as metal shot, sand, etc.) and the liquid, if necessary, comprises at least water. The liquid may also or alternatively comprise at least one oxidation inhibitor. For such a stripping compound, the projection system on the product may then comprise at least one ejection turbine of the stripping compound. Alternatively, the projection system on the product may comprise at least one nozzle or diffuser / injector projection powered by the pressurized liquid and the abrasive solid material.

Les dits systèmes de projection sont disposés par insertion locale dans la ligne de finition à au moins un unique emplacement ou plusieurs emplacements successifs, voire même délocalisés autour des équipements initiaux de ligne de finition, de telle façon que leur disposition soit la plus compacte possible afin de conserver la taille de la ligne de finition minimale/originelle.Said projection systems are arranged by local insertion in the finishing line at at least one single location or several successive locations, or even relocated around the initial finishing line equipment, so that their arrangement is as compact as possible so maintain the size of the minimum / original finish line.

Sur le même principe de ligne compacte de finition, le système de décapage est libre d'acide, de base ou de sels (sels d'acide ou de base) dédié au décapage, idéalement par au moins un système à émission électromagnétique tel que dans la domaine optique de radiations laser balayant par impact de vaporisation continu en surface de produit et/ou de radiation électromagnétique pouvant aussi être générées par l'effet d'un rayonnement laser de haute puissance tel que décrit dans EP0927595A1 . Un tel système est fort compact et peut être facilement inséré, disposé à de nombreux emplacements en entrée ou/et sortie des équipements de finition. Une forte puissance de décapage est atteinte en multipliant en nombre ces systèmes de décapage fort compacts le long de la ligne de finition.On the same principle of compact finishing line, the pickling system is free of acid, base or salts (acid or base salts) dedicated to pickling, ideally by at least one electromagnetic emission system such as in the optical domain of laser radiation scanning by continuous vaporization impact on the product surface and / or electromagnetic radiation that can also be generated by the effect of high power laser radiation as described in EP0927595A1 . Such a system is very compact and can be easily inserted, disposed at many points of entry and / or exit of finishing equipment. High stripping power is achieved by multiplying the number of these highly compact stripping systems along the finishing line.

Egalement, la ligne de finition selon l'invention peut prévoir que le système de décapage est libre d'acide, de base ou de sels (sels d'acide ou de base) dédié au décapage, idéalement par au moins un système vibratoire de générateur d'ondes ultrasoniques agissant dans un bac de liquide approprié tel que de l'eau dans lequel défile le produit.Also, the finish line according to the invention can provide that the pickling system is free of acid, base or salts (acid or base salts) dedicated to pickling, ideally by at least one generator vibratory system. ultrasonic waves acting in a suitable liquid tank such as water in which the product runs.

Sachant qu'une ligne de finition permet qu'un produit en défilement (bande, plaque, etc.) atteint des vitesses de défilement au moins jusqu'à 100m/min, le système de décapage, idéalement libre d'acide, de base ou de sels (sels d'acide ou de base) dédié au décapage, inséré ne nécessite que quelques mètres en longueur et peut aussi s'insérer facilement entre les équipements de la ligne de finition (à l'inverse de bac d'acides de plusieurs dizaines de mètres dans une ligne de décapage à défilement de vitesse de défilement comparable).Knowing that a finishing line allows a scrolling product (strip, plate, etc.) to reach scroll speeds of at least up to 100m / min, the stripping system, ideally free of acid, base or of salts (acid or base salts) dedicated to the stripping, inserted requires only a few meters in length and can also be inserted easily between the equipments of the finish line (unlike the acid tank of several tens of meters in a line of stripping scrolling comparable scroll speed).

Enfin, la ligne de finition selon l'invention prévoit qu'une introduction d'un inhibiteur d'oxydation sur le système de décapage peut être activée, modulée ou inactivée en fonction d'une information sur la durée souhaité de maintien de l'état hors oxydation du produit, tel qu'une bande ou une plaque, sortant décapée de la ligne de finition, ladite information étant délivrée à un module de commande du système de décapage.Finally, the finishing line according to the invention provides that an introduction of an oxidation inhibitor on the pickling system can be activated, modulated or inactivated depending on information on the desired duration of maintenance of the state. excluding oxidation of the product, such as a strip or a plate, coming off pickled from the finishing line, said information being delivered to a control module of the pickling system.

Des exemples de réalisation et d'application liés à la ligne de finition selon l'invention sont fournis à l'aide de figures décrites :

Figure 1
Ligne de finition comprenant une installation de skin pass mill en production de bobine à bobine,
Figure 2
Ligne de finition comprenant une installation de skin pass mill et planage sous tension en production de bobine à bobine ou de bobine à plaque,
Figure 3
Ligne de finition comprenant une installation de coupe à longueur avec un skin pass mill optionnel et planage avec production de bobine à plaque,
Figure 4
Ligne de finition comprenant une installation de refendage avec un planage en production de bobine à bobine,
Figure 5
Ligne de finition comprenant une installation d'inspection en production de bobine à bobine ou de bobine à plaques,
Figure 6
Ligne de finition comprenant une installation de planage sous tension en production de bobine à bobine,
Figure 7
Ligne de finition comprenant une installation de planage de plaques en tôle forte.
Exemplary embodiments and applications related to the finish line according to the invention are provided using the figures described:
Figure 1
Finishing line including a skin pass mill installation in coil-to-reel production,
Figure 2
Finishing line comprising a skin pass mill installation and live planing in coil-to-coil or plate-coil production,
Figure 3
Finishing line including a cut-to-length installation with optional skin pass mill and planing with plate coil production,
Figure 4
Finishing line comprising a slitting installation with planing in coil-to-reel production,
Figure 5
Finishing line comprising an inspection facility in production of reel to reel or plate reel,
Figure 6
Finishing line comprising a live leveling plant in coil-to-reel production,
Figure 7
Finishing line including a planing installation of plates in strong plate.

Principalement, pour toutes les figures, les exemples de lignes de finition d'un produit métallique défilant comprennent :

  • un système de décapage (DECA), le dit système étant disposé à une périphérie d'au moins une entrée ou une sortie du produit (1, 2) d'au moins une des installations de finition composant la ligne de finition,
  • une entrée de ligne de finition recevant des produits mixtes de type oxydé ou décapé,
  • le dit type étant identifié afin de délivrer un signal d'activation ou d'inactivation du système de décapage.
  • le système de décapage est idéalement libre d'acide , de base ou de sels (sels d'acide ou de base) et comprend un moyen interruptible de décapage fondé sur au moins un décapant mécanique ou optique.
Mainly, for all the figures, examples of finishing lines of a moving metal product include:
  • a stripping system (DECA), said system being disposed at a periphery of at least one inlet or outlet of the product (1, 2) of at least one of the finishing installations comprising the finishing line,
  • a finish line entry receiving mixed products of oxidized or pickled type,
  • said type being identified in order to deliver an activation signal or inactivation of the pickling system.
  • the pickling system is ideally free of acid, base or salts (acid or base salts) and comprises an interruptible means of pickling based on at least one mechanical or optical stripper.

L'ensemble des équipements composant les lignes de finition, ne sont pas représentés en détail dans les figures suivantes afin de donner des exemples clairs et simples de divers types principaux de lignes de finition nécessaires sur le marché selon l'invention. Seuls apparaissent donc les équipements principaux, car l'homme du métier sait qu'il faut associer des équipements annexes comme pour exemple des préparations de têtes de bande de bobine, des rouleaux pinceur d'entrainement de bande, des essorages, brossage, séchage de bande, systèmes d'évacuation de chutes, chariot d'amenée et sortie de bobines et de paquet de plaques, etc.. De plus, la composition d'équipements de la ligne peut varier en fonction des types de finition optionnels ou pas selon les souhaits de l'utilisateur.All the equipment composing the finishing lines are not shown in detail in the following figures in order to give clear and simple examples of various main types of finishing lines required on the market according to the invention. Only the main equipment thus appears, because the person skilled in the art knows that it is necessary to associate ancillary equipment such as, for example, preparations of reel tape heads, pinch rollers for belt driving, spinning, brushing, drying of Tape, waste disposal systems, feed trolley and output of reels and pack of plates, etc. In addition, the composition of equipment of the line may vary depending on the optional finishing types or not according to the wishes of the user.

Figure 1 présente une ligne de finition comprenant une installation de skin pass mill (SPM) adaptée pour un transfert de production bobine à bobine entre l'entrée et la sortie de ligne. En entrée de ligne, le produit (1) telle qu'une bande métallique est débobiné sur une dérouleuse (DER), puis passe successivement une pré-planeuse de décintrage de tête de bande (PrPI), le skin pass mill (SPM), le système de décapage (DECA) étant idéalement libre d'acide, de base ou de sels (sels d'acide ou de base) dédié à un décapage du produit, une cisaille de coupe transversale et prise d'échantillon (CIS) et enfin le produit (2) transformé sortant de ligne est re-bobiné sur une bobineuse (BOB). Figure 1 presents a finishing line comprising a skin pass mill (SPM) installation adapted for a coil-to-reel production transfer between the input and the line output. At the line input, the product (1) such as a metal strip is unwound on a roll-off machine (DER), then successively passes a pre-planer for head tape decoupling (PrPI), the skin pass mill (SPM), the pickling system (DECA) being ideally free of acid, base or salts (acid or base salts) dedicated to a stripping of the product, a shear cross-section and sampling (CIS) and finally the product (2) transformed leaving the line is re-wound on a winder (BOB).

Figure 2 présente une ligne de finition comprenant une installation de skin pass mill (SPM) et planage sous tension adaptée pour production d'un transfert de bobine à bobine ou de bobine à plaques entre l'entrée et la sortie de ligne. En entrée de ligne, le produit (1) telle qu'une bande métallique est débobiné sur une dérouleuse (DER) puis passe successivement une pré-planeuse de décintrage (PrPI) de tête de bande, le skin pass mill (SPM), optionnellement une planeuse sous tension (PlaST), une cisaille de rives (CIS), le système de décapage (DECA) étant idéalement libre d'acide, de base ou de sels (sels d'acide ou de base) dédié à un décapage du produit, une cisaille (CIS) de coupe transversale, prise d'échantillon et division de bobine ou de coupe de plaques à longueur puis enfin le produit (2) transformé sortant de ligne est soit re-bobiné sur une bobineuse (BOB) soit empilé en paquets de plaques sur une empileuse (EMP). Figure 2 presents a finishing line comprising a skin pass mill (SPM) and live planing installation adapted for producing a reel to reel or plate reel transfer between the input and the line output. At the line input, the product (1) such as a metal strip is uncoiled on a reel (DER) and then successively passes a pre-debonding planer (PrPI) of the tape head, the skin pass mill (SPM), optionally a stretcher under tension (PlaST), a shear of banks (CIS), the stripping system (DECA) being ideally free of acid, base or salts (salts of acid or base) dedicated to a stripping of the product , a cross-section shear (CIS), sampling and dividing coil or cutting plates to length and finally the product (2) transformed outgoing line is either re-wound on a winder (BOB) is stacked in packets of plates on a stacker (EMP).

En variante plus simple de la figure 2, la figure 3 présente une ligne de finition comprenant une installation de coupe à longueur avec skin pass mill (SPM) optionnel adaptée pour production d'un transfert de bobine à plaques entre l'entrée et la sortie de ligne. En entrée de ligne, le produit (1) telle qu'une bande métallique est débobiné sur une dérouleuse (DER), puis passe successivement une pré-planeuse de décintrage (PrPI) de tête de bande, optionnellement le skin pass mill (SPM), une planeuse (Pla), le système de décapage (DECA) étant idéalement libre d'acide, de base ou de sels (sels d'acide ou de base), dédié à un décapage du produit, une cisaille (CIS) de coupe transversale en longueur qui découpe la bande en plaques (3), les dites plaques étant ensuite empilées en paquets sur une empileuse (EMP).As a simpler variant of the figure 2 , the figure 3 presents a finishing line including an optional skin pass mill length (SPM) cut-to-fit facility for producing a plate coil transfer between the line inlet and the line outlet. At the line input, the product (1) such as a metal strip is unwound on a unrolling machine (DER), then passes successively a precut pre-planer (PrPI) band head, optionally the skin pass mill (SPM) , a planing machine (Pla), the pickling system (DECA) being ideally free of acid, base or salts (acid or base salts), dedicated to a pickling of the product, a shear (CIS) cutting transverse length which cuts the strip of plates (3), said plates being then stacked in packages on a stacker (EMP).

Figure 4 présente une ligne de finition comprenant une installation de refendage (REFD) de bobines. En entrée de ligne, le produit (1) telle qu'une bande métallique est débobiné sur une dérouleuse (DER) puis passe successivement une planeuse (Pla), une cisaille (CIS) de coupe transversale, le système de décapage (DECA) étant idéalement libre d'acide, de base ou de sels (sels d'acide ou de base) dédié à un décapage du produit, puis une refendeuse longitudinale de bande (REFD), une boucleuse (BOUC) d'adaptation de vitesse de défilement de la bande, un tensionneur (TENS) de bande assurant la tension de bande nécessaire à son re-bobinage du produit (2) sur une bobineuse (BOB). Figure 4 presents a finishing line comprising a slitting installation (REFD) of coils. At the line inlet, the product (1) such as a metal strip is uncoiled on a unrolling machine (DER) and successively passes a planer (Pla), a shear (CIS) of cross section, the stripping system (DECA) being ideally free of acid, base or salts (acid or base salts) dedicated to a stripping of the product, then a longitudinal strip slitter (REFD), a looper (BOUC) adaptation of speed of scrolling the web, a belt tensioner (TENS) providing the web tension necessary for its re-winding of the product (2) on a winder (BOB).

Figure 5 présente une ligne de finition une installation d'inspection (INSP), Comprenant : en entrée de ligne, le produit (1) telle qu'une bande métallique qui est débobinée sur une dérouleuse (DER) puis passe successivement une planeuse (Pla), une cisaille de rives (CISR), le système de décapage (DECA) étant idéalement libre d'acide, de base ou de sels (sels d'acide ou de base) dédié à un décapage du produit, puis une station d'inspection (INSP), une cisaille (CIS) de coupe transversale et de prise d'échantillonset enfin le produit (2) transformé sortant de ligne est re-bobiné sur une bobineuse (BOB) ou en option est empilé en paquets de plaques sur une empileuse (EMP), les plaques étant découpées à longueur par la cisaille (CIS). Figure 5 presents a finish line inspection facility (INSP), comprising: at the line entry, the product (1) such as a metal strip which is unwound on a unrolling machine (DER) and successively passes a planer (Pla), a shearing shear (IRB), the pickling system (DECA) being ideally free of acid, base or salts (acid or base salts) dedicated to a stripping of the product, then an inspection station ( INSP), a shear (CIS) cross-section and sampling and finally the product (2) transformed leaving the line is re-wound on a winder (BOB) or optionally is stacked in packs of plates on a stacker ( EMP), the plates being cut to length by the shears (CIS).

Figure 6 présente une ligne de finition comprenant une installation de planage. En entrée de ligne, le produit (1) telle qu'une bande métallique est débobiné sur une dérouleuse (DER), puis passe successivement une pré-planeuse de décintrage (PrPla) de tête de bande, une cisaille (CIS) une cisaille de coupe transversale, une soudeuse (SOUD) de mise en continuité de tête de bande entrante (1) avec la queue d'une bande précédente en cours de déroulement aval, une planeuse sous tension (PlaST), le système de décapage (DECA) étant idéalement libre d'acide, de base ou de sels (sels d'acide ou de base) dédié à un décapage du produit, une cisaille (CIS) de coupe transversale de division de bande continue, et enfin le produit (2)) transformé, sortant de ligne est re-bobiné sur une bobineuse (BOB). Figure 6 presents a finishing line comprising a leveling installation. At the line inlet, the product (1) such as a metal strip is unwound on a unrolling machine (DER), then passes successively a pre-leveling machine (PrPla) of the tape head, a shear (CIS) a shear of cross-section, a welder (SOUD) of incoming band head continuity (1) with the tail of a previous strip running downstream, a planer under tension (PlaST), the stripping system (DECA) being ideally free of acid, base or salts (salts of acid or base) dedicated to a stripping of the product, a shear (CIS) of cross section of continuous strip division, and finally the product (2)) transformed , out of line is re-wound on a winder (BOB).

Figure 7 présente une ligne de finition comprenant une installation de planage de plaques entrantes (1') telle qu'en tôle forte par exemple. En entrée de ligne, le produit (1') telle qu'une tôle forte métallique, est déplacée sur l'ensemble de la ligne sur des moyens de transferts à tables à rouleaux (TTR), puis passe successivement, une cisaille (CIS) à coupe transversale, une planeuse (Pla), le système de décapage (DECA) étant idéalement libre d'acide, de base ou de sels (sels d'acide ou de base) dédié à un décapage du produit, puis est évacué en sortie de ligne par plaque ou empilé en paquets de plaques sur une empileuse (EMP). En option, l'entrée de ligne peut être connecté à une ligne de cisaillage (LCIS) dédiée à la mise en format de plaques mères découpées par un ensemble de cisailles à découpe transversale et longitudinale par rapport au sens de défilement du produit, cette ligne de cisaillage remplace la cisaille simple (CIS) mentionnée ci-dessus. Figure 7 presents a finishing line comprising an incoming plate leveling installation (1 ') such as heavy plate for example. At the line inlet, the product (1 ') such as a strong metal plate, is moved over the entire line on roller table transfer means (TTR), then passes successively, a shear (CIS) in cross-section, a planing machine (Pla), the pickling system (DECA) being ideally free of acid, base or salts (acid or base salts) dedicated to a stripping of the product, then is discharged out of line by plate or stacked in packs of plates on a stacker (EMP). Optionally, the line input can be connected to a shearing line (LCIS) dedicated to the formatting of mother plates cut by a set of shears with transverse and longitudinal cut with respect to the direction of travel of the product, this line The shears replace the simple shear (CIS) mentioned above.

Claims (15)

Ligne de finition d'un produit métallique comprenant un système de décapage (DECA), le dit système étant disposé à une périphérie d'au moins une entrée ou une sortie du produit (1, 2) d'au moins un des équipements de finition composant la ligne de finition.Finishing line of a metal product comprising a pickling system (DECA), said system being disposed at a periphery of at least one inlet or outlet of the product (1, 2) of at least one of the finishing equipment composing the finishing line. Ligne de finition selon revendication 1 pour laquelle : - une entrée de ligne de finition recevant des produits mixtes de type oxydé ou décapé, - le dit type étant identifié afin de basculer le système de décapage sous un mode d'activation ou d'inactivation de décapage. Finishing line according to claim 1 for which: a finish line entry receiving mixed products of oxidized or pickled type, the said type being identified in order to switch the stripping system under an activation or inactivation stripping mode. Ligne de finition selon revendication 1 ou 2 pour laquelle le système de décapage est libre d'acide, de base, ou de sels d'acide ou de base dédié au décapage.Finishing line according to claim 1 or 2 for which the pickling system is free of acid, base, or acid or base salts dedicated to pickling. Ligne de finition selon une des revendications précédentes pour laquelle le système de décapage comprend un moyen interruptible de décapage fondé sur au moins un décapant mécanique, vibratoire ou électromagnétique tel que optique.Finishing line according to one of the preceding claims wherein the stripping system comprises an interruptible pickling means based on at least one mechanical, vibratory or electromagnetic stripper such as optical. Ligne de finition selon une des revendications précédentes pour laquelle le système de décapage est disposé en aval ou en amont d'un équipement de planage d'une ligne de finition telle qu'un un skin pass mill (SPM) et/ou une planeuse (PrePl, Pla, PlaST).Finishing line according to one of the preceding claims for which the stripping system is disposed downstream or upstream of a planing equipment of a finishing line such as a skin pass mill (SPM) and / or a planer ( PrePl, Pla, PlaST). Ligne de finition selon revendication 1 ou 2 pour laquelle les équipements de finition correspondent au moins à une des installations suivantes : - d'une installation de skin pass mill (SPM) adapté pour bobine à bobine (2) ou bobine à plaque (3, EMP), - d'une installation de coupe à longueur (EMP) avec ou sans skin pass, - d'une installation de refendage (REFD) de bobines, - d'une installation d'inspection (INSP), - d'une installation de planage, d'une installation de division de bobines, - et/ou d'une installation de cisaillage de rives. Finishing line according to claim 1 or 2 for which the finishing equipment corresponds to at least one of the following installations: - a skin pass mill (SPM) installation adapted for coil to coil (2) or coil plate (3, EMP), - a cutting system with length (EMP) with or without skin pass, - a slitting installation (REFD) of coils, - an inspection facility (INSP), - a leveling installation, a coil division installation, and / or a shearing plant. Ligne de finition selon une des revendications précédentes pour laquelle le système de décapage est libre d'acide, de base, ou de sels d'acide ou de base dédié au décapage, idéalement par un système de projection sur le produit d'un composé décapant tel qu'au moyen d'un matériau solide abrasif et, si besoin, un liquide.Finishing line according to one of the preceding claims for which the etching system is free of acid, base, or salts of acid or base dedicated to pickling, ideally by a projection system on the product of a compound stripper such as by means of an abrasive solid material and, if necessary, a liquid. Ligne de finition selon revendication 4 pour laquelle le matériau solide abrasif comprend des particules et/ou grains solides et le liquide, si besoin, comprend au moins de l'eau.Finishing line according to claim 4 wherein the abrasive solid material comprises particles and / or solid grains and the liquid, if necessary, comprises at least water. Ligne de finition selon revendication 4 ou 5 pour laquelle le liquide comprend au moins un inhibiteur d'oxydation.Finishing line according to claim 4 or 5 for which the liquid comprises at least one oxidation inhibitor. Ligne de finition selon une des revendications 4 à 7 pour laquelle un système de projection sur le produit comprend au moins une turbine d'éjection du composé décapant.Finishing line according to one of claims 4 to 7 for which a projection system on the product comprises at least one ejection turbine of the etching compound. Ligne de finition selon une des revendications 4 à 7 pour laquelle un système de projection sur le produit comprend au moins une buse de projection alimentée par le liquide sous pression et le matériau solide abrasif.Finishing line according to one of claims 4 to 7 for which a projection system on the product comprises at least one jet nozzle fed by the pressurized liquid and the abrasive solid material. Ligne de finition selon une des revendications précédentes pour laquelle le système de décapage est libre d'acide, de base, ou de sels d'acide ou de base dédié au décapage, idéalement par au moins un système de radiations laser balayant par impact continu en surface de produit.Finishing line according to one of the preceding claims for which the etching system is free of acid, base, or salts of acid or base dedicated to etching, ideally by at least one continuous impact scanning laser radiation system. product surface. Ligne de finition selon une des revendications précédentes pour laquelle le système de décapage est libre d'acide, de base, ou de sels d'acide ou de base dédié au décapage, idéalement par au moins un système de générateur d'ondes ultrasoniques balayant en surface de produit.Finishing line according to one of the preceding claims for which the stripping system is free of acid, base, or salts of acid or of base dedicated to stripping, ideally by at least one ultrasonic wave generator system sweeping product surface. Ligne de finition selon une des revendications précédentes pour laquelle le produit en défilement atteint des vitesses de défilement au moins jusqu'à 100m/min.Finishing line according to one of the preceding claims wherein the scrolling product reaches scrolling speeds of at least up to 100m / min. Ligne de finition selon une des revendications précédentes pour laquelle une introduction d'un inhibiteur d'oxydation sur le système de décapage peut être activée, modulée ou inactivée en fonction d'une information sur la durée souhaité de maintien de l'état hors oxydation du produit, tel qu'une bande ou une plaque, sortant décapé de la ligne de finition, ladite information étant délivrée à un module de commande du système de décapage.Finishing line according to one of the preceding claims for which an introduction of an oxidation inhibitor onto the pickling system can be activated, modulated or inactivated according to information on the desired duration of maintaining the oxidation-free state of the product, such as a strip or a plate, emerging from the finishing line, said information being delivered to a control module of the pickling system.
EP13290060.6A 2013-03-14 2013-03-14 Finishing line of a metal product Withdrawn EP2777877A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP13290060.6A EP2777877A1 (en) 2013-03-14 2013-03-14 Finishing line of a metal product
PCT/EP2013/075037 WO2014139604A1 (en) 2013-03-14 2013-11-29 Metallic product finishing line
ES13817656T ES2869949T3 (en) 2013-03-14 2013-11-29 Finishing line for a metallic product
EP13817656.5A EP2969389B1 (en) 2013-03-14 2013-11-29 Finishing line of a metal product
PL13817656T PL2969389T3 (en) 2013-03-14 2013-11-29 Finishing line of a metal product
CN201380074590.6A CN105050769B (en) 2013-03-14 2013-11-29 Metal product finishing line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13290060.6A EP2777877A1 (en) 2013-03-14 2013-03-14 Finishing line of a metal product

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FR2427855A1 (en) * 1978-06-09 1980-01-04 Ishikawajima Harima Heavy Ind MECHANICAL SCORING STRIPPING DEVICE
EP0927595A1 (en) 1996-08-12 1999-07-07 Armco Inc. Descaling metal with a laser having a very short pulse width and high average power
US5948172A (en) * 1996-08-12 1999-09-07 Neiheisel; Gary L. Descaling metal with a laser having a very short pulse width and high average power
KR20030017013A (en) 2001-08-23 2003-03-03 주식회사 포스코 Method for removing second surface scale of hot strip plate using ultra sonic wave
WO2008033660A2 (en) * 2006-09-14 2008-03-20 The Material Works, Ltd. Slurry blasting apparatus for removing scale from sheet metal
US7601226B2 (en) 2006-09-14 2009-10-13 The Material Works, Ltd. Slurry blasting apparatus for removing scale from sheet metal
US20110009034A1 (en) * 2006-09-14 2011-01-13 The Material Works, Ltd. Method of Producing Rust Inhibitive Sheet Metal Through Scale Removal with a Slurry Blasting Descaling Cell Having Improved Grit Flow
US8062095B2 (en) 2006-09-14 2011-11-22 The Material Works, Ltd. Method of producing rust inhibitive sheet metal through scale removal with a slurry blasting descaling cell having improved grit flow
KR20120074154A (en) 2010-12-27 2012-07-05 주식회사 포스코 Method for treating surface of hot strip

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ES2869949T3 (en) 2021-10-26
PL2969389T3 (en) 2022-01-17
WO2014139604A1 (en) 2014-09-18
CN105050769A (en) 2015-11-11
EP2969389A1 (en) 2016-01-20
CN105050769B (en) 2018-03-06
EP2969389B1 (en) 2021-02-24

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