EP0023472A1 - Verfahren zum kontinuierlichen, wenigstens teilweisen Beschichten wenigstens einer Seite eines metallischen Substrats und Vorrichtung zur Durchführung des Verfahrens - Google Patents

Verfahren zum kontinuierlichen, wenigstens teilweisen Beschichten wenigstens einer Seite eines metallischen Substrats und Vorrichtung zur Durchführung des Verfahrens Download PDF

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Publication number
EP0023472A1
EP0023472A1 EP80810237A EP80810237A EP0023472A1 EP 0023472 A1 EP0023472 A1 EP 0023472A1 EP 80810237 A EP80810237 A EP 80810237A EP 80810237 A EP80810237 A EP 80810237A EP 0023472 A1 EP0023472 A1 EP 0023472A1
Authority
EP
European Patent Office
Prior art keywords
clearance
metal
coating
substrate
distribution
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.)
Granted
Application number
EP80810237A
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English (en)
French (fr)
Other versions
EP0023472B1 (de
Inventor
Georges Haour
Michel Kormann
Willy Wagnieres
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.)
Battelle Memorial Institute Inc
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Battelle Memorial Institute Inc
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 Battelle Memorial Institute Inc filed Critical Battelle Memorial Institute Inc
Priority to AT80810237T priority Critical patent/ATE7713T1/de
Publication of EP0023472A1 publication Critical patent/EP0023472A1/de
Application granted granted Critical
Publication of EP0023472B1 publication Critical patent/EP0023472B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/02—Bead coater

Definitions

  • the invention relates to the coating of sheets with another metal and in particular to a process which allows the partial coating of the sheet.
  • galvanized sheet generally relates to the coating of the two faces of the sheet immersed in a bath of molten zinc. This manufacturing method is perfectly developed and allows the production of sheet metal protected against corrosion for many years.
  • the strip to be coated is passed through a bath of molten zinc by simultaneously placing the face of the sheet which is not to be coated, in contact with a rotary cylinder. around an axis parallel to the level of the bath, the contact between this face and the cylinder being maintained as long as the sheet is soaked in the bath.
  • BE Patent No. 859,420 relates to a process by which a thin jet of molten zinc is projected against the face of the sheet metal strip to be coated.
  • the first two solutions mentioned do not allow the thickness and regularity of the deposited layer to be controlled.
  • the second of these solutions poses problems with regard to the accumulation of zinc on the parts of the cylinder which project beyond the longitudinal edges of the metal strip, as well as to preserve the other uncoated face of the sheet.
  • the solution using masking generally requires the subsequent removal of the coating intended to mask the non-galvanized face.
  • the zinc jet process is difficult to implement as it is true that it is difficult to form such a very thin and perfectly laminar jet, especially if one wishes to produce a coating of the order of a few tens of microns .
  • Patent FR No. 1,153,715 relates to a device for the metallic coating of metallic ribbons on one or two faces in which the molten metal is contained in a crucible having outlet lips pressed against the ribbon so that the width of the orifice formed between the two lips is so small that any metal applied to the tape is entrained out of the applicator by the displacement of the tape under the effect of capillary forces resulting from the surface tension between the liquid metal and the tape to be coated. Therefore, the movement of the wet ribbon by the molten metal drives the metal out of the crucible as it goes.
  • Such a device has several drawbacks such as the necessary contact between the crucible distribution lips and the ribbon to be coated, causing the wear of these lips and the fact that only the capillary forces resulting from the surface tensions between the liquid metal and the ribbon are used to pump liquid out of the crucible, thereby limiting the coating speed. Finally, the possibilities of adjusting the layer thickness of such a device are also limited.
  • the object of the present invention is to remedy, at least in part, the various drawbacks mentioned above.
  • the present invention firstly relates to a process for continuously coating a metal substrate, on at least part of at least one of its faces with another metal, characterized by since at least one flow under pressure of this molten coating metal is formed through a dispensing opening extending substantially over the width of the part of the substrate to be covered, a trajectory is fixed for the substrate transversely to said width and passing close to said distribution opening, this substrate is heated to a temperature close to the melting point of said coating metal with respect to a portion of its path, this substrate is driven along this path to successively bring its heated portions towards said distribution opening, the distance between this opening and the substrate is adjusted so that the surface tension of the molten coating metal and the wettability of the substrate allow the molten metal to form a stable meniscus between this opening and this substrate and, for a given running speed of the substrate, the flow rate is adjusted according to the thickness desired for the coating.
  • the subject of this invention is then a device for implementing this process, characterized in that it comprises a source of molten coating metal, at least one distribution conduit for this metal, means for adjusting the spacing between the edge of said clearance and the face of the strip to be coated, means for heating the portion of this strip located immediately upstream of this clearance and means for controlling the flow rate of said molten metal and the speed of the strip in function of the desired thickness for the coating.
  • the device illustrated in FIG. 1 comprises a furnace 1 of known design intended for producing molten zinc.
  • This furnace has a lateral distribution duct 3 which opens at one end into a recess 2 open towards the outside, while its other end leads to a crucible 4 containing molten metal.
  • a level regulator of the molten retal contained in this crucible constituted by a vertically movable piston 5, makes it possible to run the molten zinc into the conduit 3 to supply the clearance 2.
  • An adjustment valve 3a placed in the conduit 3 allows '' adjust the flow rate with greater precision.
  • the distance between the strip 6 and the edge of the clearance 2 is adjustable.
  • each of the ends of one of the rollers 10 serving for the positioning is fixed to the end of an arm 13 mounted oscillating around a fixed axis 14, which bears against an adjustable stop screw 15.
  • This burner bank 16 is intended to raise the temperature of the strip 6 to around the temperature of the molten zinc, in order to ensure good wetting of the liquid zinc on the tape 6.
  • this clearance 2 is formed by an elongated groove arranged transversely to the longitudinal axis of the ribbon 6 and the length of which is very slightly less than the width of the ribbon 6 to be coated. This groove is formed in a plate 19 which extends through the opening 3. In this example, the depth of this clearance is of the order of 2 to 3 mm and its width is 3 mm.
  • a series of connecting conduits 20 open into the bottom of this clearance 2 and make it communicate with the conduit 3.
  • These connecting conduits 20 are formed by holes of 0.8 mm in diameter spaced 10 mm apart from each other in this example. They are intended to create a certain pressure drop at the outlet of the conduit 3 and to promote the distribution of the molten zinc over the entire length of the clearance 2.
  • the connecting conduits are spaced 10 mm apart. the other, but this spacing is not critical.
  • the section and the number of connecting conduits will be chosen according to the desired flow rate and so as to create a pressure drop such that the molten zinc does not come out in the form of a jet, the upstream pressure resulting only from the height of liquid zinc located above the level of the inlet of the conduit 3.
  • This pressure drop is only intended to distribute the flow regularly over the entire length of the clearance 2 so that it is constantly filled with molten zinc during the coating process.
  • the external face of the plate 19 is bevelled on either side of the groove 18 to prevent the molten zinc from spreading on this face when the strip 6 is placed near the edge of the opening 2 and is moves longitudinally.
  • the tape 6 also makes an angle of about 10 ° with respect to the vertical on either side of the roller 10. It should also be noted that the supply of liquid zinc by a horizontal conduit while the tape to be coated is substantially vertical and moves opposite the clearance 2 from bottom to top, constitutes an advantageous arrangement.
  • the flow of zinc can be easily controlled, and above all, the direction of movement of the tape causes a entrainment of the liquid zinc due to the wettability of the heated tape which opposes the flow of zinc by gravity, so that it is possible to dynamically balance these two opposing forces.
  • Tests have been successfully carried out on a laboratory scale using the installation described. To perform these tests, a 10 cm wide stainless steel strip was used. Stainless steel was chosen to carry out these tests so as to be able to work without a controlled atmosphere for the purpose of simplification. Since the wettability of an ordinary steel strip heated under a non-oxidizing atmosphere is better than that of an oxidizable steel, it is certain that the tests carried out in this way are in any case transferable to an industrial installation using ordinary steel sheets.
  • the temperature of the zinc in the crucible 4 is brought between 450 ° and 470 ° C.
  • the steel strip 6 is brought by the roller 10 controlled by the adjusting screw 15 acting on the oscillating arm 13, in contact with the edge of the opening 2.
  • the piston 5 is introduced into the zinc bath contained in the crucible 4 and the level of the zinc exceeds the level of the conduit 3 and flows towards the clearance 2. It crosses the channels 20 and spreads in the clearance which it fills.
  • the roller 10 is moved back using the screw 15 and the engine 12 is started while the gas burner ramp 16 has been lit, so that the ribbon, arriving opposite the groove 18, or brought to a temperature close to that of the molten zinc, in this example the temperature of the strip can be of the order of 400 ° C. so that the zinc is not cooled as soon as it touches the sheet, which would prevent it from forming a regular coating and would end up blocking the tape by an accumulation of zinc at clearance 2.
  • the distance between the edge of the opening 2 and the surface of the tape to be coated must be sufficient so that the tape does not in any case touch the wafer 19.
  • the spacing between the ribbon and the wafer 19 could reach 0.8 mm.
  • this distance is 0.5 to 0.6 mm.
  • Maintaining this liquid mass in contact with a portion of the ribbon 6 over its entire width is the guarantee of a continuous coating, of constant thickness, over the entire width of the ribbon.
  • the increase in the width of the covering from 10 cm to 1.50 m, which constitutes the current width in industrial applications, does not present any particular principle difficulty.
  • Tests of variation of the coating thickness by a modification of the flow made it possible to go from a coating of 80 ⁇ m by 10 cm wide with a flow of 1.33 cm3 / s and a running speed of 10 m / min at a coating of 30 ⁇ m with a flow rate of 0.5 cm3 / s.
  • This coating could be lowered to 20 ⁇ m still under laboratory conditions.
  • the scrolling speed seems limited upwards only by questions of vibrations and not by the nature of the process and downwards, it can be lowered to approximately 3 m / min for a flow rate of approximately 1 cm3 / s . This shows the great flexibility of the process "according to the invention.
  • FIGS. 4 and 5 Various variants, one of which is illustrated in FIGS. 4 and 5 can be considered. It is possible to provide a slot 21 in place of the clearance 2 and of the connecting conduits 19. It is also possible to envisage a series of conduits 19 in place of the slot 21 without these conduits leading to a clearance 2. It is also possible to reduce the number of conduits 19 and to separate them further by increasing or not their passage section.
  • the advantage of the flowing zinc bath, produced adjacent to the face of the tape 6 to be coated lies in the fact that by its position, which tends to cause the zinc to flow by gravity and the combined action of the wettability of the tape and the ripple effect following its upward movement, there are substantially the same conditions as with the conventional technique of coating on two sides, with a regular thickness of coating and the possibility of modifying it at will by acting on the flow rate or on the scrolling speed. In all the tests carried out, no trace of zinc appeared on the reverse of the ribbon.
  • a cooling station for example cooling with nitrogen by creating a circulation of nitrogen in a conduit 18 from a source of 'nitrogen S, as illustrated in FIG. 1. It is obviously possible to provide a regulation system intended to create a control between the running speed of the strip 6 and the flow of zinc through the valve 3a as a function of a given coating thickness.
  • FIGS. 6 and 7 show an embodiment in which an oven and its distribution duct 3 ', one end of which opens into a clearance 2' similar to the clearance 2 of FIGS. 1 to 3, are mounted in an industrial galvanizing installation essentially comprising an enclosure with a reducing atmosphere 22, which contains a heating station 23 either electric or gas.
  • One end of the enclosure 22 has an inlet 24 for the passage of the ribbon 6 ′ supplied by a roller 7 ′.
  • a guide roller 24 is disposed near the clearance 2 'after which the tape 6' is directed ge towards the outlet 25 of the enclosure 22 towards another guide roller 26 situated between the enclosure 22 and a cooling station 27. It can be seen in particular in FIG.
  • the method described although it was designed for coating on one side only, can be used for coating on two sides by providing a second coating device opposite the other side. These coatings could for example be of different thickness on either side of the tape. It is also possible to use this process to coat both sides with a ribbon with savings on one or both sides.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP80810237A 1979-07-31 1980-07-28 Verfahren zum kontinuierlichen, wenigstens teilweisen Beschichten wenigstens einer Seite eines metallischen Substrats und Vorrichtung zur Durchführung des Verfahrens Expired EP0023472B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80810237T ATE7713T1 (de) 1979-07-31 1980-07-28 Verfahren zum kontinuierlichen, wenigstens teilweisen beschichten wenigstens einer seite eines metallischen substrats und vorrichtung zur durchfuehrung des verfahrens.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH7034/79A CH648601A5 (fr) 1979-07-31 1979-07-31 Procede de revetement en continu d'un substrat metallique sur une partie au moins de sa surface par un autre metal et dispositif pour la mise en oeuvre de ce procede.
CH7034/79 1979-07-31
AU62464/80A AU6246480A (en) 1979-07-31 1980-09-17 Coating metal with molten metal

Publications (2)

Publication Number Publication Date
EP0023472A1 true EP0023472A1 (de) 1981-02-04
EP0023472B1 EP0023472B1 (de) 1984-05-30

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EP80810237A Expired EP0023472B1 (de) 1979-07-31 1980-07-28 Verfahren zum kontinuierlichen, wenigstens teilweisen Beschichten wenigstens einer Seite eines metallischen Substrats und Vorrichtung zur Durchführung des Verfahrens

Country Status (9)

Country Link
US (1) US4529628A (de)
EP (1) EP0023472B1 (de)
JP (1) JPS6410591B2 (de)
AU (1) AU6246480A (de)
CA (1) CA1145210A (de)
CH (1) CH648601A5 (de)
DE (1) DE3068030D1 (de)
ES (1) ES8106336A1 (de)
WO (1) WO1981000419A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005213A1 (fr) * 1985-03-04 1986-09-12 Battelle Memorial Institute Procede pour former selectivement au moins une bande de revetement d'un metal ou alliage sur un substrat d'un autre metal
EP0261078A1 (de) * 1986-09-10 1988-03-23 Battelle Memorial Institute Verfahren zum selektiven Beschichten der Oberfläche eines Gegenstandes mit einer Schicht aus einem anderen Metall oder einer anderen Legierung und danach hergestellter Rahmen für integrierten Schaltkreis
EP0545408A1 (de) * 1991-12-04 1993-06-09 AK Steel Corporation Meniskusüberziehung eines Stahlbleches
EP0397952B1 (de) * 1989-05-18 1994-08-17 Nisshin Steel Co., Ltd. Verfahren und Vorrichtung zum kontinuierlichen Ätzen und Beschichten von rostfreien Stahlbändern mit Aluminium

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61207556A (ja) * 1985-03-12 1986-09-13 Nisshin Steel Co Ltd 溶融金属のメニスカスコ−テイングにおける浴面制御方法
CH675257A5 (de) * 1988-02-09 1990-09-14 Battelle Memorial Institute
US4973500A (en) * 1988-10-19 1990-11-27 Nkk Corporation Method of plating metal sheets by passing the sheet upwards in close proximity to an upwardly directed nozzle
US5077094A (en) * 1989-12-11 1991-12-31 Battelle Development Corp. Process for applying a metal coating to a metal strip by preheating the strip in a non-oxidizing atmosphere, passing the strip through a melt pool of the metal coating material, and rapidly cooling the back surface of the strip
US5465681A (en) * 1994-03-02 1995-11-14 Eastman Kodak Company Coating roll drive
US5688324A (en) * 1994-07-15 1997-11-18 Dainippon Screen Mfg. Co., Ltd. Apparatus for coating substrate
DE19511656C2 (de) * 1995-03-30 1997-11-27 Wieland Werke Ag Partiell feuerverzinntes Band
US5935653A (en) 1996-01-18 1999-08-10 Micron Technology, Inc. Methods for coating a substrate
EP1815037B1 (de) 2004-11-23 2014-05-07 Wieland-Werke AG Verfahren zum einseitigen beschichten von metallbändern und deren verwendung
ITMI20042516A1 (it) * 2004-12-27 2005-03-27 Getters Spa Processo per produrre mediante deposizione di lega bassofondente dispositivi portanti almeno un materiale attivo
DE102006023282B4 (de) * 2006-05-18 2010-04-15 Wieland-Werke Ag Beschichtungsanlage für Metallbänder und Verfahren zur Herstellung einseitig partiell beschichteter Metallbänder
DE102006057858A1 (de) 2006-12-08 2008-08-21 Vladimir Volchkov Verfahren zum Stranggießen (hoch)legierter oder/und hochgekohlter Stähle
DE102009041860A1 (de) * 2009-07-03 2011-01-05 Hörmann KG Brockhagen Verfahren und Vorrichtung zum Herstellen von Bauelementen II
BR112013030446A2 (pt) 2011-05-27 2016-09-27 Ak Steel Properties Inc aparelho e método de revestimento de menisco
DE102012017682A1 (de) 2012-08-31 2014-03-06 Vladimir Volchkov Verfahren zum Stranggießen der NE-Metalle
DE102012017684A1 (de) 2012-08-31 2014-03-06 Vladimir Volchkov Verfahren zum Stranggießen der NE-Metalle
CN103962678B (zh) * 2013-01-30 2016-12-28 大连佳德恒电子工业有限公司 太阳能电池板半自动焊接机焊锡带挂锡烘干装置

Citations (8)

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Publication number Priority date Publication date Assignee Title
US1973431A (en) * 1932-12-07 1934-09-11 Johnson Bronze Co Method and apparatus for coating metal strip
FR1153715A (fr) * 1956-05-09 1958-03-20 Armco Int Corp Procédé et appareillage pour la réalisation de revêtements métalliques
FR1210136A (fr) * 1957-09-11 1960-03-07 Owens Corning Fiberglass Corp éléments textiles comprenant des filaments de verre partiellement enduits de métal
DE1080373B (de) * 1956-06-29 1960-04-21 Siemens Ag Anordnung zum einseitigen Metallisieren von Metallbaendern
US2959829A (en) * 1957-09-09 1960-11-15 Joseph B Brennan Casting method and apparatus
FR1372398A (fr) * 1963-10-29 1964-09-11 Rolls Royce Nouveau type de bec de coulée et procédé d'enduction mis en oeuvre lors de son utilisation
US3201275A (en) * 1961-12-21 1965-08-17 Gen Electric Method and apparatus for meniscus coating
BE859420A (fr) * 1977-10-05 1978-02-01 Centre Rech Metallurgique Procede de galvanisation continue

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US2598908A (en) * 1950-02-24 1952-06-03 Color Res Corp Coating head
US2937108A (en) * 1955-10-21 1960-05-17 British Iron Steel Research Method of tinning steel strip
US3179536A (en) * 1961-05-19 1965-04-20 Kimberly Clark Co Method and apparatus for coating paper
CH461715A (fr) * 1966-07-06 1968-08-31 Battelle Development Corp Procédé de fabrication d'un produit continu à partir d'une matière en fusion
US3776297A (en) * 1972-03-16 1973-12-04 Battelle Development Corp Method for producing continuous lengths of metal matrix fiber reinforced composites

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1973431A (en) * 1932-12-07 1934-09-11 Johnson Bronze Co Method and apparatus for coating metal strip
FR1153715A (fr) * 1956-05-09 1958-03-20 Armco Int Corp Procédé et appareillage pour la réalisation de revêtements métalliques
DE1080373B (de) * 1956-06-29 1960-04-21 Siemens Ag Anordnung zum einseitigen Metallisieren von Metallbaendern
US2959829A (en) * 1957-09-09 1960-11-15 Joseph B Brennan Casting method and apparatus
FR1210136A (fr) * 1957-09-11 1960-03-07 Owens Corning Fiberglass Corp éléments textiles comprenant des filaments de verre partiellement enduits de métal
US3201275A (en) * 1961-12-21 1965-08-17 Gen Electric Method and apparatus for meniscus coating
FR1372398A (fr) * 1963-10-29 1964-09-11 Rolls Royce Nouveau type de bec de coulée et procédé d'enduction mis en oeuvre lors de son utilisation
BE859420A (fr) * 1977-10-05 1978-02-01 Centre Rech Metallurgique Procede de galvanisation continue

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005213A1 (fr) * 1985-03-04 1986-09-12 Battelle Memorial Institute Procede pour former selectivement au moins une bande de revetement d'un metal ou alliage sur un substrat d'un autre metal
US4719962A (en) * 1985-03-04 1988-01-19 Battelle Memorial Institute Method for selectively forming at least one coating strip consisting of a metal or alloy on a substrate consisting of another metal
EP0261078A1 (de) * 1986-09-10 1988-03-23 Battelle Memorial Institute Verfahren zum selektiven Beschichten der Oberfläche eines Gegenstandes mit einer Schicht aus einem anderen Metall oder einer anderen Legierung und danach hergestellter Rahmen für integrierten Schaltkreis
CH668083A5 (fr) * 1986-09-10 1988-11-30 Battelle Memorial Institute Procede pour former selectivement au moins une bande de revetement d'un metal ou alliage sur un substrat d'un autre metal et support de connexion de circuit integre realise par ce procede.
US4865876A (en) * 1986-09-10 1989-09-12 Georges Haour Process for selectively forming at least one metal or alloy coating strip on a substrate of another metal and integrated circuit lead frame achieved by this process
EP0397952B1 (de) * 1989-05-18 1994-08-17 Nisshin Steel Co., Ltd. Verfahren und Vorrichtung zum kontinuierlichen Ätzen und Beschichten von rostfreien Stahlbändern mit Aluminium
EP0545408A1 (de) * 1991-12-04 1993-06-09 AK Steel Corporation Meniskusüberziehung eines Stahlbleches

Also Published As

Publication number Publication date
ES493811A0 (es) 1981-08-01
AU6246480A (en) 1982-03-25
DE3068030D1 (en) 1984-07-05
JPS6410591B2 (de) 1989-02-22
CA1145210A (fr) 1983-04-26
EP0023472B1 (de) 1984-05-30
JPS56501014A (de) 1981-07-23
ES8106336A1 (es) 1981-08-01
WO1981000419A1 (en) 1981-02-19
US4529628A (en) 1985-07-16
CH648601A5 (fr) 1985-03-29

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