WO2002016081A1 - Method and device for removing metallic impurities - Google Patents

Method and device for removing metallic impurities Download PDF

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Publication number
WO2002016081A1
WO2002016081A1 PCT/EP2001/009412 EP0109412W WO0216081A1 WO 2002016081 A1 WO2002016081 A1 WO 2002016081A1 EP 0109412 W EP0109412 W EP 0109412W WO 0216081 A1 WO0216081 A1 WO 0216081A1
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WO
WIPO (PCT)
Prior art keywords
cleaned
tool
jet nozzle
workpiece
blasting
Prior art date
Application number
PCT/EP2001/009412
Other languages
German (de)
French (fr)
Inventor
Alexander Buinger
Dirk Lieske
Michael Peters
Christoph Ideler
Original Assignee
Linde Ag
Thyssen Krupp Stahl Ag
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 Linde Ag, Thyssen Krupp Stahl Ag filed Critical Linde Ag
Priority to AT01962946T priority Critical patent/ATE279300T1/en
Priority to DE2001504137 priority patent/DE50104137D1/en
Priority to EP01962946A priority patent/EP1311369B1/en
Priority to AU2001284017A priority patent/AU2001284017A1/en
Publication of WO2002016081A1 publication Critical patent/WO2002016081A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
    • B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
    • 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
    • B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning

Definitions

  • the invention relates to a method for removing metallic contaminants from a metallic workpiece or tool.
  • the invention further relates to a device for removing metallic contaminants from a metallic workpiece or tool.
  • Rotating tools are often used in metalworking, which have to be cleaned from time to time in order to maintain the quality of the machining.
  • steel sheets for the automotive industry are coated with aluminum or zinc as corrosion protection in fire-coating systems (so-called FBA).
  • FBA fire-coating systems
  • these sheets are sent through a so-called “skin pass mill”.
  • smoothened rollers smoothened rollers (skin pass rollers) transfer a defined roughness (surface structure) to the belt surface. This process takes place under high surface pressure.
  • the invention is therefore based on the object of demonstrating a method and a device of the type described at the outset by which the disadvantages mentioned are eliminated.
  • an effective type of cleaning that should extend the life of the tools to be cleaned should be provided.
  • this object is achieved for the method in that an abrasive in solid state is used for cleaning, which is present in gaseous state under normal conditions.
  • the object is achieved in that the device comprises means for supplying such an abrasive for cleaning in a gaseous state under normal conditions.
  • the invention is based on the idea that a cleaning agent is used as the blasting agent which is gaseous under normal conditions and can therefore escape without difficulty and without residue.
  • rotating tools in particular rotating, preferably driven apparatus, devices or their rotating parts are addressed, for example rotating rollers.
  • Dry ice which has proven itself in numerous applications, should be mentioned in particular as a cleaning agent present in normal gaseous state.
  • Carbon dioxide in a solid state has a temperature of around -78 ° C. When heated, carbon dioxide sublimes. When carbon dioxide is sublimed, an explosive increase in volume occurs by a factor of around 600, which effectively supports jet cleaning. The editing with carbon dioxide in a solid state of matter runs without residue, since the sublimed gaseous carbon dioxide can escape without any problems. Blasting agent preparation or blasting agent disposal is therefore not necessary for carbon dioxide.
  • Solid carbon dioxide in the form of CO 2 pellets is preferably used.
  • Impurities on metal are suitable. This result is surprising insofar as the thermal expansion coefficients of the contaminants and the workpiece do not differ or differ only slightly in this application.
  • the blasting agent is preferably directed via a movable blasting nozzle onto the tool or workpiece to be cleaned.
  • the jet nozzle is moved on a traversing device that is adapted to the geometry of the tool to be cleaned.
  • the blasting nozzle can be moved on its own traversing device or for other devices.
  • the jet nozzle is arranged on its own traversing device or for other devices.
  • Cleaning the skin pass roller makes it possible to dispense with the corrosion-promoting use of high-pressure water jet.
  • the regular use of the jet cleaning according to the invention in particular with CO 2l, largely prevents the buildup of the smallest impurities leading to larger lumps which cause damage. This is a grinding or cleaning of the skin pass roller required much less often.
  • the complaint rate and the cost of spare parts are reduced while the service life is increased. Blasting with dry ice produces very good results, especially with the hard zinc particles.
  • the blasting nozzle can be moved on a traversing device which is moved at least in the axial direction of the skin pass roller during cleaning.
  • a jet nozzle that has been specially adapted to the roller geometry and process parameters is placed - for example, on a grinding stand that can be moved with a traversing device.
  • a separate traversing device for the jet nozzle can also be provided.

Abstract

The invention relates to a method and a device for removing metallic impurities from a metallic work piece or tool. According to the invention, the purification process is carried out using an abrasive agent in a state of solid aggregation which in normal circumstances is provided in a gas forming phase. Solidified carbon dioxide (dry ice) in particular can be used as an abrasive agent.

Description

Beschreibung description
Verfahren und Vorrichtung zur Entfernung metallischer VerunreinigungenMethod and device for removing metallic contaminants
Die Erfindung betrifft ein Verfahren zur Entfernung metallischer Verunreinigungen von einem metallischen Werkstück oder Werkzeug.The invention relates to a method for removing metallic contaminants from a metallic workpiece or tool.
Die Erfindung betrifft ferner eine Vorrichtung zur Entfernung metallischer Verunreinigungen von einem metallischen Werkstück oder Werkzeug.The invention further relates to a device for removing metallic contaminants from a metallic workpiece or tool.
In der Metallbearbeitung werden vielfach rotierende Werkzeuge eingesetzt, die von Zeit zu Zeit gereinigt werden müssen, um die Qualität der Bearbeitung aufrechterhalten zu können.Rotating tools are often used in metalworking, which have to be cleaned from time to time in order to maintain the quality of the machining.
Beispielsweise werden Stahlbleche für die Kfz-Industrie als Korrosionsschutz in Feuer- Beschichtungs-Anlagen (sog. FBA) mit Aluminium oder Zink beschichtet. Vor dem Aufwickeln zu Coils (großen Spulen) werden diese Bleche durch ein sogenanntes "Dressiergerüst" geschickt. Hier übertragen aufgeraute Walzen (Dressierwalzen) eine definierte Rauheit (Oberflächenstruktur) auf die Bandoberfläche. Dieser Vorgang erfolgt unter hoher Flächenpressung.For example, steel sheets for the automotive industry are coated with aluminum or zinc as corrosion protection in fire-coating systems (so-called FBA). Before being wound into coils (large coils), these sheets are sent through a so-called "skin pass mill". Here, roughened rollers (skin pass rollers) transfer a defined roughness (surface structure) to the belt surface. This process takes place under high surface pressure.
Bei den Beschichtungsprozessen der Bänder kommt es sowohl beim Aluminieren wie auch bei Verzinken zu geringfügigem Aufbau von Beschichtungsmaterial auf den Dressierwalzen. Da sich diese Verunreinigungen aufbauen, werden hierdurch unerwünschte Abdrücke auf die Bandoberfläche übertragen. Zum Teil können die Coils sogar durch die unerwünschte Prägung wertlos werden. Um die Standzeit der Dressierwalze zu erhöhen, werden üblicherweise Zwischenreinigungen mit Hochdruck- Wasserstrahlen (HD-Wasserstrahlen) durchgeführt, bzw. die Walze von Zeit zu Zeit abgeschliffen.In the coating processes of the strips, there is a slight build-up of coating material on the skin pass rollers, both when aluminizing and when galvanizing. As these contaminants build up, unwanted imprints are transferred to the belt surface. Some of the coils can even become worthless due to the undesired embossing. In order to increase the service life of the skin pass roller, intermediate cleaning with high pressure water jets (HP water jets) is usually carried out or the roller is sanded from time to time.
Bei der HD-Wasserreinigung entsteht ein starker Wassernebel, der das gesamte Gerüst der Dressierwalzen einhüllt. Dies führt zu starken Korrosionsproblemen an der Anlage. Außerdem lässt die Rauheit der Walze - auch bei Verwendung von Schleifmitteln - deutlich gegenüber der anfänglichen Ausgangsrauheit nach. Dadurch wird die Lebensdauer der Walze verkürzt. Eine verkürzte Lebensdauer der Dressierwalze bedeutet aber einen erhöhten Aufwand für das Aufarbeiten der Walze (Schleifen, Aufrauhen) sowie erhöhte Nacharbeitungskosten.With HD water purification, a strong water mist is created that envelops the entire structure of the skin pass rollers. This leads to severe corrosion problems on the system. In addition, the roughness of the roller - even when using abrasives - significantly decreases compared to the initial initial roughness. This shortens the life of the roller. A shortened lifespan of the The skin pass roller, however, means an increased effort for refurbishing the roller (grinding, roughening) and increased reworking costs.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der eingangs bezeichneten Art aufzuzeigen, durch welche die genannten Nachteile beseitigt werden. Insbesondere sollte eine effektive aber die Lebensdauer der zu reinigenden Werkzeuge möglichst verlängernde Art der Reinigung zur Verfügung gestellt werden.The invention is therefore based on the object of demonstrating a method and a device of the type described at the outset by which the disadvantages mentioned are eliminated. In particular, an effective type of cleaning that should extend the life of the tools to be cleaned should be provided.
Diese Aufgabe wird erfindungsgemäß für das Verfahren dadurch gelöst, dass zur Reinigung ein Strahlmittel in festem Aggregatzustand eingesetzt wird, welches unter Normalbedingungen in gasförmigem Aggregatzustand vorliegt.According to the invention, this object is achieved for the method in that an abrasive in solid state is used for cleaning, which is present in gaseous state under normal conditions.
Die Aufgabe wird im Hinblick auf die erfindungsgemäße Vorrichtung dadurch gelöst, dass die Vorrichtung Mittel zur Zufuhr eines solchen unter Normalbedingungen in gasförmigem Aggregatzustand vorliegenden Strahlmittels für die Reinigung umfasst.With regard to the device according to the invention, the object is achieved in that the device comprises means for supplying such an abrasive for cleaning in a gaseous state under normal conditions.
Die Erfindung basiert auf der Idee, dass ein Reinigungsmittel als Strahlmittel eingesetzt wird, welches unter Normalbedingungen gasförmig ist und daher ohne Schwierigkeiten und rückstandslos entweichen kann.The invention is based on the idea that a cleaning agent is used as the blasting agent which is gaseous under normal conditions and can therefore escape without difficulty and without residue.
Im Rahmen der Erfindung sind mit rotierenden Werkzeugen insbesondere sich drehende, vorzugsweise angetriebene Apparate, Geräte oder deren rotierende Teile angesprochen, beispielsweise rotierende Walzen.Within the scope of the invention, rotating tools, in particular rotating, preferably driven apparatus, devices or their rotating parts are addressed, for example rotating rollers.
Als bei Normalbedingungen in gasförmiger Aggregatzustand vorliegendes Reinigungsmittel ist insbesondere Trockeneis (CO2) zu nennen, welches sich in zahlreichen Anwendungen bewährt hat.Dry ice (CO 2 ), which has proven itself in numerous applications, should be mentioned in particular as a cleaning agent present in normal gaseous state.
Verfestigtes Kohlendioxid bietet aufgrund seiner physikalischen Eigenschaften wesentliche Vorteile bei der Verwendung als Strahlmittel zur Strahlreinigung von Oberflächen: Kohlendioxid in festem Aggregatzustand (Trockeneis) besitzt eine Temperatur von etwa -78 °C. Bei Erwärmung sublimiert Kohlendioxid. Bei der Sublimation des Kohlendioxids tritt eine explosionsartige Volumenvergrößerung etwa um den Faktor 600 auf, was die Strahlreinigung wirksam unterstützt. Die Bearbeitung mit Kohlendioxid in festem Aggregatzustand verläuft rückstandsfrei, da das sublimierte gasförmige Kohlendioxid problemlos entweichen kann. Eine Strahlmittelaufbereitung oder Strahlmittelentsorgung ist daher für Kohlendioxid nicht erforderlich. Bevorzugt wird festes Kohlendioxid in Form von CO2-Pellets eingesetzt.Due to its physical properties, solidified carbon dioxide offers significant advantages when used as a blasting agent for blasting surfaces: Carbon dioxide in a solid state (dry ice) has a temperature of around -78 ° C. When heated, carbon dioxide sublimes. When carbon dioxide is sublimed, an explosive increase in volume occurs by a factor of around 600, which effectively supports jet cleaning. The editing with carbon dioxide in a solid state of matter runs without residue, since the sublimed gaseous carbon dioxide can escape without any problems. Blasting agent preparation or blasting agent disposal is therefore not necessary for carbon dioxide. Solid carbon dioxide in the form of CO 2 pellets is preferably used.
Die Wirkungsweise der Strahlreinigung mit Kohlendioxid-Pellets ist noch nicht ganz verstanden. Bisher geht man davon aus, dass wegen des plötzlichen Wärmeentzugs aufgrund der unterschiedlichen Wärmeausdehnungskoeffizienten erhebliche Spannungen entstehen. Diese lockern die Bindungskräfte, wodurch die Schicht versprödet und durch nachfolgend auftreffende Pellets abgetragen wird (siehe A.The mode of action of jet cleaning with carbon dioxide pellets has not yet been fully understood. So far, it has been assumed that due to the sudden loss of heat due to the different coefficients of thermal expansion, considerable stresses arise. These loosen the binding forces, causing the layer to become brittle and to be removed by subsequent pellets (see A.
Visser et. al., Reinigen von Oberflächen mit Trockeneisstrahlen, Werkstattstechnik 89 (1999)). In umfangreichen Untersuchungen wurde im Rahmen der vorliegenden Erfindung festgestellt, dass sich die Strahlreinigung mit Kohlendioxid-Pellets bzw. allgemein mit einem Strahlmittel in festem Zustand, welches unter Normalbedingungen im gasförmigen Zustand vorliegt, auch zur Entfernung von metallischenVisser et. al., cleaning of surfaces with dry ice blasting, Werkstattstechnik 89 (1999)). In extensive investigations, it was found within the scope of the present invention that blasting with carbon dioxide pellets or generally with a blasting agent in a solid state, which is present in the gaseous state under normal conditions, can also be used to remove metallic
Verunreinigungen auf Metall eignet. Dieses Ergebnis ist insofern überraschend, als sich bei dieser Anwendung die Wärmeausdehnungskoeffizienten der Verunreinigungen und des Werkstücks nicht oder nur wenig unterscheiden.Impurities on metal are suitable. This result is surprising insofar as the thermal expansion coefficients of the contaminants and the workpiece do not differ or differ only slightly in this application.
Bevorzugt wird das Strahlmittel über eine bewegbare Strahldüse auf das zu reinigende Werkzeug oder Werkstücks geleitet.The blasting agent is preferably directed via a movable blasting nozzle onto the tool or workpiece to be cleaned.
In Ausgestaltung der Erfindung wird die Strahldüse auf einer der Geometrie des zu reinigenden Werkzeuges angepassten Traversiervorrichtung bewegt. Die Strahldüse kann auf einer eigenen oder für andere Geräte vorgesehene Traversiervorrichtung bewegt werden. Die Strahldüse ist dazu auf einer eigenen oder für andere Geräte vorgesehene Traversiervorrichtung angeordnet.In one embodiment of the invention, the jet nozzle is moved on a traversing device that is adapted to the geometry of the tool to be cleaned. The blasting nozzle can be moved on its own traversing device or for other devices. For this purpose, the jet nozzle is arranged on its own traversing device or for other devices.
In Weiterbildung der Erfindung werden Dressierwalzen zur Bearbeitung von feuerbe- schichteten Blechen gereinigt. Die Verwendung der Trockeneis-Strahlreinigung zurIn a further development of the invention, skin pass rolls for processing fire-coated metal sheets are cleaned. The use of dry ice blasting for
Reinigung der Dressierwalze erlaubt es, auf den korrosionsfördernden Einsatz des HD- Wasserstrahlens zu verzichten. Außerdem kann durch die regelmäßige Anwendung des erfindungsgemäßen Strahlreinigens, insbesondere mit CO2l der Aufbau kleinster Verunreinigungen zu Schäden verursachenden, größeren Klumpen weitestgehend unterbunden werden. Somit ist ein Abschleifen bzw. Reinigen der Dressierwalze wesentlich seltener erforderlich. Insgesamt senken sich die Reklamationsquote und die Ersatzteilkosten bei gleichzeitigem Gewinn an Standzeit. Gerade auch bei den harten Zink-Partikeln bringt das Strahlen mit Trockeneis sehr gute Ergebnisse.Cleaning the skin pass roller makes it possible to dispense with the corrosion-promoting use of high-pressure water jet. In addition, the regular use of the jet cleaning according to the invention, in particular with CO 2l, largely prevents the buildup of the smallest impurities leading to larger lumps which cause damage. This is a grinding or cleaning of the skin pass roller required much less often. Overall, the complaint rate and the cost of spare parts are reduced while the service life is increased. Blasting with dry ice produces very good results, especially with the hard zinc particles.
Die Strahldüse kann auf einer Traversiervorrichtung bewegt werden, welche bei der Reinigung zumindest in axialer Richtung der Dressierwalze verschoben wird. Zur Reinigung der Dressierwalze wird - beispielsweise aufgesetzt auf einen mit einer Traversiervorrichtung verfahrbaren Schleifbock - eine speziell an die Walzengeometrie und Prozessparameter adaptierte Strahldüse aufgesetzt. Alternativ kann auch eine separate Traversiervorrichtung für die Strahldüse vorgesehen sein. The blasting nozzle can be moved on a traversing device which is moved at least in the axial direction of the skin pass roller during cleaning. To clean the skin pass roller, a jet nozzle that has been specially adapted to the roller geometry and process parameters is placed - for example, on a grinding stand that can be moved with a traversing device. Alternatively, a separate traversing device for the jet nozzle can also be provided.

Claims

Patentansprüche claims
1. Verfahren zur Entfernung metallischer Verunreinigungen von einem metallischen Werkstück oder Werkzeug, dadurch gekennzeichnet, dass zur Reinigung ein Strahlmittel in festem Aggregatzustand eingesetzt wird, welches unter Normalbedingungen in gasförmigem Aggregatzustand vorliegt.1. A method for removing metallic impurities from a metallic workpiece or tool, characterized in that an abrasive in a solid state is used for cleaning, which is present in gaseous state under normal conditions.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die Verunreinigungen Aluminium, Zink und/oder deren Legierungen enthalten.2. The method according to claim 1, characterized in that the impurities contain aluminum, zinc and / or their alloys.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass als Strahlmittel verfestigtes Kohlendioxid (Trockeneis) verwendet wird.3. The method according to claim 1 or 2, characterized in that solidified carbon dioxide (dry ice) is used as the blasting agent.
4. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass das Strahlmittel über eine bewegbare Strahldüse auf das zu reinigende Werkstück oder Werkzeug geleitet wird.4. The method according to claim 1 to 3, characterized in that the blasting agent is directed via a movable blasting nozzle onto the workpiece or tool to be cleaned.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die Strahldüse auf einer der Geometrie des zu reinigenden Werkstücks oder Werkzeuges angepassten Traversiervorrichtung bewegt wird.5. The method according to claim 4, characterized in that the jet nozzle is moved on a traversing device adapted to the geometry of the workpiece or tool to be cleaned.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass die Strahldüse auf einer eigenen oder für andere Geräte vorgesehenen Traversiervorrichtung bewegt wird.6. The method according to claim 5, characterized in that the jet nozzle is moved on its own or provided for other devices traversing device.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass rotierende, in der Metallbearbeitung verwendete Werkzeuge gereinigt werden.7. The method according to any one of claims 1 to 6, characterized in that rotating tools used in metalworking are cleaned.
8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass Dressierwalzen zur Bearbeitung von feuerbeschichteten Blechen gereinigt werden.8. The method according to any one of claims 1 to 7, characterized in that skin pass rollers for processing fire-coated sheets are cleaned.
9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass die Strahldüse auf einer Traversiervorrichtung bewegt wird, welche bei der Reinigung zumindest in axialer Richtung der Dressierwalze verschoben wird. 9. The method according to claim 8, characterized in that the jet nozzle is moved on a traversing device which is displaced during cleaning at least in the axial direction of the skin pass roller.
10. Vorrichtung zur Entfernung metallischer Verunreinigungen von einem metallischen Werkstück oder Werkzeug, dadurch gekennzeichnet, dass die Vorrichtung Mittel zur Zufuhr eines Strahlmittels in festem Aggregatzustand für die Reinigung umfasst, welches unter Normalbedingungen in gasförmigem Aggregatzustand vorliegt.10. Device for removing metallic contaminants from a metallic workpiece or tool, characterized in that the device comprises means for supplying a blasting agent in a solid state for cleaning, which is present in gaseous state under normal conditions.
11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Vorrichtung Mittel zur Herstellung und/oder Speicherung von verfestigtem Kohlendioxid (Trockeneis) als Strahlmittel aufweist.11. The device according to claim 10, characterized in that the device comprises means for producing and / or storing solidified carbon dioxide (dry ice) as a blasting agent.
12. Vorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass eine bewegbare Strahldüse zur Zufuhr des Strahlmittel auf die zu reinigenden Teile vorgesehen ist.12. The apparatus of claim 10 or 11, characterized in that a movable blasting nozzle is provided for supplying the blasting agent to the parts to be cleaned.
13. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, dass die Strahldüse auf einer der Geometrie des zu reinigenden Werkstücks oder Werkzeuges angepassten Traversiervorrichtung beweglich angeordnet ist.13. The apparatus according to claim 12, characterized in that the jet nozzle is movably arranged on a traversing device adapted to the geometry of the workpiece or tool to be cleaned.
14. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass die Strahldüse auf einer eigenen oder für andere Geräte vorgesehenen Traversiervorrichtung angeordnet ist.14. The apparatus according to claim 13, characterized in that the jet nozzle is arranged on its own or provided for other devices traversing device.
15. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass die Strahldüse auf der einer Dressierwalze zur Bearbeitung von feuerbeschichteten Blechen zugeordneten Traversiervorrichtung bewegt wird, welche zumindest in axialer15. The apparatus according to claim 14, characterized in that the jet nozzle is moved on the traversing device assigned to a skin pass roller for processing fire-coated sheets, which at least in the axial direction
Richtung der Dressierwalze verschiebbar angeordnet ist. Direction of the skin pass roller is arranged displaceably.
PCT/EP2001/009412 2000-08-22 2001-08-15 Method and device for removing metallic impurities WO2002016081A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT01962946T ATE279300T1 (en) 2000-08-22 2001-08-15 METHOD AND DEVICE FOR REMOVAL OF METAL CONTAMINANTS
DE2001504137 DE50104137D1 (en) 2000-08-22 2001-08-15 METHOD AND DEVICE FOR REMOVING METAL IMPURITIES
EP01962946A EP1311369B1 (en) 2000-08-22 2001-08-15 Method and device for removing metallic impurities
AU2001284017A AU2001284017A1 (en) 2000-08-22 2001-08-15 Method and device for removing metallic impurities

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Application Number Priority Date Filing Date Title
DE10041056.1 2000-08-22
DE10041056 2000-08-22

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AT (1) ATE279300T1 (en)
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DE (1) DE50104137D1 (en)
WO (1) WO2002016081A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049237A1 (en) * 2003-11-24 2005-06-02 International Tobacco Machinery Poland Ltd. Method of washing the cutter drum of a cutting machine for organic plant materials, particularly tobacco materials,and a device for washing the cutter drum of a cutting machine for organic plant materials,particularly tobacco materials
FR2915118A1 (en) * 2007-04-18 2008-10-24 Siemens Vai Metals Tech Sas METHOD FOR CLEANING ROLLER CYLINDER AND DEVICE THEREFOR
DE10115993B4 (en) * 2001-03-30 2010-04-01 Sms Siemag Aktiengesellschaft Method for preventing the passage of liquids through the nip during the rolling of strips in strip rolling stands and apparatus for carrying out the method
EP2221119A1 (en) * 2009-02-23 2010-08-25 Linde AG Device and method for separating a workpiece
EP2767799A4 (en) * 2011-09-13 2015-06-24 Nippon Steel & Sumitomo Metal Corp Method for measuring threaded element at tube end
EP2985116A1 (en) * 2014-08-16 2016-02-17 Winfried Wulf Purification device and method of cleaning transport rollers in a roller cooling oven of a facility for producing float glass

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035161A1 (en) 2009-07-29 2011-02-10 Sms Siemag Ag Method and device for descaling or cleaning metallic surfaces, including strips (or slabs) in the course

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107764A (en) * 1990-02-13 1992-04-28 Baldwin Technology Corporation Method and apparatus for carbon dioxide cleaning of graphic arts equipment
DE19621837C1 (en) * 1996-05-31 1997-09-11 Thyssen Stahl Ag Method for treatment of fire-coated thin sheet
US6099396A (en) * 1997-03-14 2000-08-08 Eco-Snow Systems, Inc. Carbon dioxide jet spray pallet cleaning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107764A (en) * 1990-02-13 1992-04-28 Baldwin Technology Corporation Method and apparatus for carbon dioxide cleaning of graphic arts equipment
DE19621837C1 (en) * 1996-05-31 1997-09-11 Thyssen Stahl Ag Method for treatment of fire-coated thin sheet
US6099396A (en) * 1997-03-14 2000-08-08 Eco-Snow Systems, Inc. Carbon dioxide jet spray pallet cleaning system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KEENEY C.A. ET AL: "CRYOGENIC BLAST CLEANING", IRON AND STEEL ENGINEER, ASSOCIATION OF IRON AND STEEL ENGINEERS. PITTSBURGH, US, vol. 75, no. 1, 1998, pages 56 - 57, XP000732788, ISSN: 0021-1559 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115993B4 (en) * 2001-03-30 2010-04-01 Sms Siemag Aktiengesellschaft Method for preventing the passage of liquids through the nip during the rolling of strips in strip rolling stands and apparatus for carrying out the method
WO2005049237A1 (en) * 2003-11-24 2005-06-02 International Tobacco Machinery Poland Ltd. Method of washing the cutter drum of a cutting machine for organic plant materials, particularly tobacco materials,and a device for washing the cutter drum of a cutting machine for organic plant materials,particularly tobacco materials
FR2915118A1 (en) * 2007-04-18 2008-10-24 Siemens Vai Metals Tech Sas METHOD FOR CLEANING ROLLER CYLINDER AND DEVICE THEREFOR
WO2008129141A1 (en) * 2007-04-18 2008-10-30 Siemens Vai Metals Technologies Sas Method for cleaning a rolling mill roll and corresponding device
EP2221119A1 (en) * 2009-02-23 2010-08-25 Linde AG Device and method for separating a workpiece
EP2767799A4 (en) * 2011-09-13 2015-06-24 Nippon Steel & Sumitomo Metal Corp Method for measuring threaded element at tube end
US9267900B2 (en) 2011-09-13 2016-02-23 Nippon Steel & Sumitomo Metal Corporation Method for measuring thread element at end portion of pipe or tube
EP2985116A1 (en) * 2014-08-16 2016-02-17 Winfried Wulf Purification device and method of cleaning transport rollers in a roller cooling oven of a facility for producing float glass
WO2016026561A1 (en) * 2014-08-16 2016-02-25 Winfried Wulf Cleaning device and cleaning method for conveying rollers in an annealing lehr of a float glass manufacturing plant

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EP1311369A1 (en) 2003-05-21
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DE50104137D1 (en) 2004-11-18
EP1311369B1 (en) 2004-10-13

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