WO1995011764A1 - Procede et dispositif pour le nettoyage d'elements solides - Google Patents
Procede et dispositif pour le nettoyage d'elements solides Download PDFInfo
- Publication number
- WO1995011764A1 WO1995011764A1 PCT/FR1994/001244 FR9401244W WO9511764A1 WO 1995011764 A1 WO1995011764 A1 WO 1995011764A1 FR 9401244 W FR9401244 W FR 9401244W WO 9511764 A1 WO9511764 A1 WO 9511764A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molds
- cleaning
- laser
- elements
- nanoseconds
- Prior art date
Links
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
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/70—Maintenance
- B29C33/72—Cleaning
Definitions
- the invention relates to a method for cleaning solid elements, such as molds, and more particularly to cleaning glassware molds.
- the glassware molds used in particular for the manufacture of bottles or flasks are of several types, these are for example roughing molds and finisher molds. These molds most often work at very high rates, that is to say that they produce a large number of bottles or flasks very quickly.
- these molds and more particularly, the areas coming into contact with the glass are treated with agents such as greases. Consequently, this type of mold clogs very quickly and must therefore be cleaned regularly to obtain good quality finished products.
- the roughing molds are cleaned about every two days and the finishing molds about once a week.
- the techniques usually used for cleaning glassware molds are mechanical. These include, for example, sanding or polishing techniques. It appears that these techniques are entirely satisfactory from the cleaning point of view, and make it possible to remove all the layer of dirt which is deposited during use.
- the dimensions of the cavity or imprint that is to say of the place where the product is formed, are increased, which results in either a higher consumption of glass for the same product or a variation of ° the capacity of the article for constant consumption of glass.
- the external dimensions of the articles are also modified, and are therefore no longer suitable for the request.
- these deformations lead to mold release problems which generally lead to defects or breakage of the finished products. Most often, the finished products have a surface state which degrades with the aging of the mold.
- the molds also have often complicated geometries which make it difficult to clean them with a laser beam which cannot reach all the recesses and in particular the grooves and the fins present on the surface. outside of the mold.
- the areas of the molds allowing the housing and the attachment of the various parts constituting the molds, to one another, are also very difficult to access by a laser beam. The cleaning of these areas by such a technique would require delicate and a priori relatively slow operations.
- the object of the invention is to provide a mold cleaning process which does not cause any degradation of the surface, which allows total cleaning of the surface and which is compatible with the cleaning cycles of molds in the industry.
- the mold is on the one hand covered over its entire surface with a relatively thick and soft layer, more particularly consisting of fatty or organic matter, and on the other hand, it is covered with a thin layer of mineral material resulting certainly from corrosion of the mold metal.
- This thin layer is directly in contact with the mold surface and therefore under the first layer described. By the way, this thin layer only appears on the surface of the mold in contact with the hot glass, that is to say, at the level of the mold cavity or cavity.
- the step of cleaning by photo ablation by laser impact relates to the surfaces in contact with the hot glass.
- the first step can be carried out at relatively rapid rates and makes it possible to eliminate all the smudges of the first type, that is to say greases or organic materials.
- the second step of cleaning by laser impact which is limited to only a part of the surface and more particularly to the areas of contact with the hot glass, that is to say to the imprint or cavity of the mold, makes it possible to '' remove the thin layer resulting from metal corrosion in this area. This surface being limited and moreover very easy to access, this cleaning can be adapted to the industrial rates of glassworks.
- the elimination of organic grease or matter is done by a technique combining the action of detergent baths, in particular basic baths and the action of ultrasound.
- Detergent baths are more particularly baths containing sodium hydroxide solution and surfactants.
- the laser impact is obtained by a laser beam delivering a peak power density of between a few megawatts per cm 2 and a few tens of megawatts per cm 2 , per pulse lasting between a few nanoseconds and a few tens of nanoseconds and having an adjustable firing frequency from 0 to 30 Hz.
- the method thus described makes it possible to achieve the expected results, that is to say a total cleaning of the surface of the molds, without any degradation of said surface and a time fast enough to adapt to the ca ⁇ dences required in particular for cleaning glassware molds.
- the invention also provides a device for implementing the method.
- This device for cleaning solid elements such as glassware molds comprises on the one hand means ensuring the elimination of grease or organic matter from the molds and on the other hand a laser associated with means orienting the ray on at least the surface of the molds in contact with the hot glass.
- the means ensuring the elimination of fats or organic matter are a series of tanks combining bathing effects comprising a base such as sodium hydroxide solution and surfactants and ultrasound agents.
- the laser is a YAG laser doped with neodymium, with a wavelength of 1.06 microns delivering an energy of around 500 millijoules per pulse, with a duration between a few nanoseconds and a few tens of nanoseconds and preferably between 10 and ? nanoseconds, and having an adjustable firing frequency from 0 to 30 Hz.
- the pulse duration is 22 nanoseconds.
- the additional cleaning of the surface of the molds in contact with the hot glass is carried out using a device allowing scanning of the laser beam on stationary molds.
- the device is advantageously associated with a robot and transport members such as baskets, allowing the molds to be moved in the different tanks and then brought to a fixed position to undergo cleaning by laser impact.
- FIGS. 1, 2 represent: FIG. 1, an example of a device for de-greasing molds,
- FIG. 2 a schematic representation of a positive dis ⁇ allowing the scanning of the laser beam on a part of the molds.
- molds used in the glass industry for the manufacture of glass containers such as bottles or flasks. These are for example roughing molds and finishing molds. These molds are subject to very high work rates. They can produce a bottle every five seconds or so. To maintain such rates these molds are continuously cooled, greased, coated with molding agents, etc. All these ⁇ - • elements contribute to the fouling of the molds on which residues, fatty or organic deposits appear and any type of dirt that must be removed very regularly by adequate cleaning.
- FIG. 1 a set of several tanks 1 are shown diagrammatically in which the molds 2 go pass successively in order to undergo a total degreasing.
- the molds 2 can have various shapes, they have been shown very simply.
- the molds 2 are subjected through these different tanks 1 to actions combined with detergents and ultrasound effects.
- the baths include, for example, soda lye as ⁇ associated with surfactants.
- the detergent bath pos ⁇ sedes for example a pH close to 14.
- the presence of several tanks 1 is necessary to possibly authorize passages in a detergent bath then in a rinsing bath then in a passivation or "dewatering" bath that is to say which prevents subsequent corrosion.
- This type of installation is for example of the type marketed by the company FISA which offers in its range of VST models, installations suitable for degreasing such molds.
- the molds 2 After passing through this installation, the deposits of fatty or organic matter which generally cover the entire surface of the molds are eliminated.
- the molds 2 often have places, not visible in the figures, very difficult to access for cleaning. These difficult-to-access zones are more particularly the grooves and the fins present on the external surface of the molds or else the zones allowing the interlocking or attachment of the different parts of the mold. This type of cleaning where the molds 2 are placed in baths makes it possible to remove deposits of grease or organic matter including in these zones.
- this type of cleaning does not cause any degradation or erosion of the materials constituting the molds.
- the molds 2 are placed on a work surface 6 which allows a passage to remain. Through this passage 7, passes a hollow tube 8 provided with an orifice 9 and associated with a set of mirrors 10.
- This tube 8 is comparable to a periscope.
- This tube 8 can be driven in a vertical translational movement in both directions and in a rotational movement by a motorization system not shown in FIG. 2.
- a source 11 schematically represented emits a laser beam 12 which is transmitted within the tube 8 by the mirrors 10 and re-emitted at the orifice 9.
- the emission of this beam 12 through the orifice 9 associated with the movements of the tube 8 allows scanning full of the surface of, 5 the mold footprint.
- the association of the two movements can in fact make it possible to communicate to the orifice 9 a helical movement whose pitch is chosen such that the laser beam covers the entire surface of the imprint of the mold 2.
- the laser used is of the YAG type doped with neodymium such as that described in the French patent of invention 2,641,718.
- This second cleaning phase makes it possible to remove the thin layer of residue which resists the first cleaning phase when passing through the tanks 1.
- the surface of the mold remains in ⁇ tact after this cleaning and shows no wear.
- the laser cleaning technique consists in attacking the residue-metal interface.
- this interface has a resistance lower than that of the thin layer of residues and that of the metal constituting the mold 2. It is therefore possible to break this interface without damaging the metal.
- the laser beam creates rapid heating at constant volume which creates a pressure wave which causes this interface to break.
- a suction system 13 drives these residues.
- the device thus described with the aid of FIGS. 1 and 2 allows total cleaning of the surface of the molds without degradation of this surface.
- such a device is entirely compatible with the rates required by the glass industry for cleaning molds.
- the second phase that is to say laser scanning, being limited to cleaning the mold imprint, that is to say where the layer resulting from corrosion is formed of the metal of the mold
- the treatment time is much less important than if it were necessary to treat the entire surface of the mold.
- the impression is very easy to access for the laser beam and therefore does not require any special tools or complicated maneuvering.
- Cleaning according to the invention also has the advantage of being able to increase the duration of use of the same mold on a forming machine. Indeed, wear and tear during cleaning being almost nonexistent, the molds can be cleaned a greater number of times before being discarded and can thus be used longer, with good quality, in particular good surface condition, finished products.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94931632A EP0675769B1 (fr) | 1993-10-26 | 1994-10-25 | Procede et dispositif pour le nettoyage d'elements solides |
DE69408440T DE69408440T2 (de) | 1993-10-26 | 1994-10-25 | Verfahren und vorrichtung zur reinigung von festen körpern |
BR9405649A BR9405649A (pt) | 1993-10-26 | 1994-10-25 | Processo e dispositivo de limpeza de elementos sólidos |
US08/464,622 US5643367A (en) | 1993-10-26 | 1994-10-25 | Method and device for cleaning solid elements |
CA002152396A CA2152396C (fr) | 1993-10-26 | 1994-10-25 | Procede et dispositif pour le nettoyage d'elements solides |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR93/12750 | 1993-10-26 | ||
FR9312750A FR2711557B1 (fr) | 1993-10-26 | 1993-10-26 | Procédé et dispositif pour le nettoyage d'éléments solides. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995011764A1 true WO1995011764A1 (fr) | 1995-05-04 |
Family
ID=9452217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1994/001244 WO1995011764A1 (fr) | 1993-10-26 | 1994-10-25 | Procede et dispositif pour le nettoyage d'elements solides |
Country Status (7)
Country | Link |
---|---|
US (1) | US5643367A (fr) |
EP (1) | EP0675769B1 (fr) |
BR (1) | BR9405649A (fr) |
DE (1) | DE69408440T2 (fr) |
ES (1) | ES2113682T3 (fr) |
FR (1) | FR2711557B1 (fr) |
WO (1) | WO1995011764A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0742089A2 (fr) * | 1995-05-11 | 1996-11-13 | Uniroyal Englebert Reifen GmbH | Dispositif et procédé de nettoyage d'un moule de vulcanisation |
EP0792731A2 (fr) * | 1996-03-01 | 1997-09-03 | PIRELLI COORDINAMENTO PNEUMATICI S.p.A. | Procédé et dispositif pour nettoyer des moules de vulcanisation d'articles en élastomère |
WO1998004366A1 (fr) * | 1996-07-26 | 1998-02-05 | Cauldron Limited Partnership | Extraction de matiere par application d'un rayonnement suivant un angle oblique |
WO2000001497A1 (fr) * | 1998-07-04 | 2000-01-13 | Laser- Und Medizin-Technologie Ggmbh Berlin | Procede pour eliminer d'une surface un materiau plastique adhesif et dispositif pour la mise en oeuvre du procede |
WO2016105306A1 (fr) * | 2014-12-25 | 2016-06-30 | Lang Yuser Otomotiv A. S. | Procédé de nettoyage de moules pleins pour pneumatiques de véhicule |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999065061A2 (fr) * | 1998-06-08 | 1999-12-16 | Advanced Systems Automation Limited | Dispositif laser portatif destine au nettoyage de machines d'encapsulation pour semi-conducteurs |
US6178973B1 (en) | 1998-07-28 | 2001-01-30 | International Business Machines Corporation | Method and apparatus for ozone generation and surface treatment |
SG114560A1 (en) * | 2002-07-31 | 2005-09-28 | Inst Data Storage | A method and apparatus for cleaning surfaces |
DE102009021697B4 (de) * | 2009-02-17 | 2015-04-02 | Ftm Formentechnik U. Metallbau Gmbh | Reinigung von Formen zur Herstellung von Reifenprofilen |
US9381548B2 (en) | 2013-01-02 | 2016-07-05 | The Boeing Company | Systems for removing lubricants from superplastic-forming or hot-forming dies |
US9272312B1 (en) * | 2013-01-02 | 2016-03-01 | The Boeing Company | Methods and systems for removing lubricants from superplastic-forming or hot-forming dies |
US9156194B2 (en) * | 2013-03-14 | 2015-10-13 | Palo Alto Research Center Incorporated | Digital 3D fabrication using multi-layered mold |
US10016792B2 (en) | 2016-10-14 | 2018-07-10 | The Boeing Company | Processing tool cleaning using laser ablation |
US10981345B2 (en) * | 2017-02-23 | 2021-04-20 | Himile Mechanical Science And Technology (Shandong) Co., Ltd | Method and apparatus for cleaning workpiece, and method and apparatus for cleaning (pore-free) tire segment mold |
AU2018203176A1 (en) * | 2018-05-08 | 2019-11-28 | Automation Innovation Pty Ltd | Laser cleaning system |
US11748942B2 (en) | 2020-08-13 | 2023-09-05 | Siemens Mobility Pty Ltd | System and method for automatically generating trajectories for laser applications |
FR3118392A1 (fr) * | 2020-12-22 | 2022-06-24 | Valeo Equipements Electriques Moteur | Procede de fabrication d’un module de puissance surmoule |
CN113289981B (zh) * | 2021-04-27 | 2022-09-23 | 金华送变电工程有限公司 | 一种线夹清洗涂脂一体化处理方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2300632A1 (fr) * | 1975-02-14 | 1976-09-10 | Arbed | Procede pour le decalaminage de produits metalliques |
GB1480714A (en) * | 1975-10-21 | 1977-07-20 | Kitaigorodsky J | Ultrasonic cleaning apparatus |
GB2169496A (en) * | 1985-01-16 | 1986-07-16 | Stc Plc | Cleaning metal surfaces |
FR2641718A1 (fr) * | 1989-01-17 | 1990-07-20 | Ardt | Procede de nettoyage de la surface de matieres solides et dispositif de mise en oeuvre de ce procede, utilisant un laser impulsionnel de puissance, a impulsions courtes, dont on focalise le faisceau sur la surface a nettoyer |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3205816A1 (de) * | 1982-02-18 | 1983-08-25 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren zum reinigen von einzelteilen und vorrichtung zur durchfuehrung des verfahrens |
-
1993
- 1993-10-26 FR FR9312750A patent/FR2711557B1/fr not_active Expired - Lifetime
-
1994
- 1994-10-25 BR BR9405649A patent/BR9405649A/pt not_active IP Right Cessation
- 1994-10-25 US US08/464,622 patent/US5643367A/en not_active Expired - Lifetime
- 1994-10-25 DE DE69408440T patent/DE69408440T2/de not_active Expired - Lifetime
- 1994-10-25 EP EP94931632A patent/EP0675769B1/fr not_active Expired - Lifetime
- 1994-10-25 ES ES94931632T patent/ES2113682T3/es not_active Expired - Lifetime
- 1994-10-25 WO PCT/FR1994/001244 patent/WO1995011764A1/fr active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2300632A1 (fr) * | 1975-02-14 | 1976-09-10 | Arbed | Procede pour le decalaminage de produits metalliques |
GB1480714A (en) * | 1975-10-21 | 1977-07-20 | Kitaigorodsky J | Ultrasonic cleaning apparatus |
GB2169496A (en) * | 1985-01-16 | 1986-07-16 | Stc Plc | Cleaning metal surfaces |
FR2641718A1 (fr) * | 1989-01-17 | 1990-07-20 | Ardt | Procede de nettoyage de la surface de matieres solides et dispositif de mise en oeuvre de ce procede, utilisant un laser impulsionnel de puissance, a impulsions courtes, dont on focalise le faisceau sur la surface a nettoyer |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0742089A2 (fr) * | 1995-05-11 | 1996-11-13 | Uniroyal Englebert Reifen GmbH | Dispositif et procédé de nettoyage d'un moule de vulcanisation |
EP0742089A3 (fr) * | 1995-05-11 | 1997-03-19 | Uniroyal Englebert Gmbh | Dispositif et procédé de nettoyage d'un moule de vulcanisation |
EP0792731A2 (fr) * | 1996-03-01 | 1997-09-03 | PIRELLI COORDINAMENTO PNEUMATICI S.p.A. | Procédé et dispositif pour nettoyer des moules de vulcanisation d'articles en élastomère |
EP0792731A3 (fr) * | 1996-03-01 | 1998-01-28 | PIRELLI COORDINAMENTO PNEUMATICI S.p.A. | Procédé et dispositif pour nettoyer des moules de vulcanisation d'articles en élastomère |
US5928533A (en) * | 1996-03-01 | 1999-07-27 | Pirelli Coordinamento Pneumatici S.P.A. | Method and apparatus for cleaning vulcanization molds for elastomer material articles |
US6113707A (en) * | 1996-03-01 | 2000-09-05 | Pirelli Coordinamento Pneumatici Spa | Method and apparatus for cleaning vulcanization molds for elastomer material articles |
WO1998004366A1 (fr) * | 1996-07-26 | 1998-02-05 | Cauldron Limited Partnership | Extraction de matiere par application d'un rayonnement suivant un angle oblique |
US5800625A (en) * | 1996-07-26 | 1998-09-01 | Cauldron Limited Partnership | Removal of material by radiation applied at an oblique angle |
WO2000001497A1 (fr) * | 1998-07-04 | 2000-01-13 | Laser- Und Medizin-Technologie Ggmbh Berlin | Procede pour eliminer d'une surface un materiau plastique adhesif et dispositif pour la mise en oeuvre du procede |
WO2016105306A1 (fr) * | 2014-12-25 | 2016-06-30 | Lang Yuser Otomotiv A. S. | Procédé de nettoyage de moules pleins pour pneumatiques de véhicule |
Also Published As
Publication number | Publication date |
---|---|
DE69408440D1 (de) | 1998-03-12 |
FR2711557B1 (fr) | 1996-01-05 |
EP0675769A1 (fr) | 1995-10-11 |
DE69408440T2 (de) | 1998-08-27 |
EP0675769B1 (fr) | 1998-02-04 |
FR2711557A1 (fr) | 1995-05-05 |
ES2113682T3 (es) | 1998-05-01 |
BR9405649A (pt) | 1996-04-02 |
US5643367A (en) | 1997-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0675769B1 (fr) | Procede et dispositif pour le nettoyage d'elements solides | |
EP3135640B1 (fr) | Graissage de moules ebaucheurs dans un procédé de fabrication de produits en verre creux | |
WO1990007988A1 (fr) | Nettoyage d'une surface avec un laser | |
WO2007138226A1 (fr) | Graissage automatique de moules pour le formage de produits en verre creux | |
CN110449398B (zh) | 一种掩膜版精密再生工艺及其系统 | |
Jia et al. | Laser cleaning of slots of chrome-plated die | |
Singh et al. | Processability of pure Cu by LPBF using a ns-pulsed green fiber laser | |
CA2152396C (fr) | Procede et dispositif pour le nettoyage d'elements solides | |
US10023939B2 (en) | Gold evaporative sources with reduced contaminants and methods for making the same | |
JPH053184A (ja) | ウエハの洗浄方法 | |
CN115135785A (zh) | 金属合金表面改性方法以及具有改进的粘结头耐久性的相关金属合金产品 | |
KR101061863B1 (ko) | 계면활성제막을 이용한 레이저 가공 방법 및 장치 | |
WO1997049843A1 (fr) | Procede et installation de revetement electrolytique par une couche metallique de la surface d'un cylindre pour coulee continue de bandes metalliques minces | |
FR3100002A1 (fr) | Procédé pour décontaminer par laser pulsé une pièce métallique comprenant à sa surface une couche d’oxydes de métaux | |
EP1960569B1 (fr) | Procede permettant d'enlever les restes d'anodes accroches aux anodes usees provenant des series d'electrolyse ignee | |
JP2008130893A (ja) | 半導体装置の製造方法およびその製造装置 | |
CN109047182A (zh) | 一种Al-Mg合金表面氧化膜激光清洗工艺 | |
FR2561669A1 (fr) | Procede et appareil pour nettoyer des anodes usees | |
AU1835001A (en) | Method and apparatus for manufacturing a wire | |
WO2020159388A1 (fr) | Système et procédé automatisés de nettoyage de moules, de moules de soufflage et d'accessoires utilisés dans la production d'emballage en verre | |
KR100936191B1 (ko) | 잉곳 세정 장치 및 잉곳 세정 방법 | |
FR2750903A1 (fr) | Element d'une lingotiere pour la coulee continue des metaux, comprenant une paroi refroidie en cuivre ou en alliage de cuivre comportant sur sa surface externe un revetement metallique et procede pour son revetement | |
JPH06254521A (ja) | 脱脂洗浄方法 | |
US9994965B2 (en) | Method and system for the production of semi-finished copper products as well as method and apparatus for application of a wash | |
Rode et al. | Ultrafast laser cleaning of museum artifacts |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): BR CA US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2152396 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1994931632 Country of ref document: EP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 1994931632 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 08464622 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 1994931632 Country of ref document: EP |