EP1857565A1 - Installation de revêtement pour bandes métalliques et procédé de fabrication de bandes métalliques recouvertes sur un côté - Google Patents

Installation de revêtement pour bandes métalliques et procédé de fabrication de bandes métalliques recouvertes sur un côté Download PDF

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Publication number
EP1857565A1
EP1857565A1 EP07009199A EP07009199A EP1857565A1 EP 1857565 A1 EP1857565 A1 EP 1857565A1 EP 07009199 A EP07009199 A EP 07009199A EP 07009199 A EP07009199 A EP 07009199A EP 1857565 A1 EP1857565 A1 EP 1857565A1
Authority
EP
European Patent Office
Prior art keywords
coating
roll
strip
roller
metal strip
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.)
Ceased
Application number
EP07009199A
Other languages
German (de)
English (en)
Inventor
Leszek Poletek
Hermann Sturm
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.)
Wieland Werke AG
Original Assignee
Wieland Werke 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 Wieland Werke AG filed Critical Wieland Werke AG
Publication of EP1857565A1 publication Critical patent/EP1857565A1/fr
Ceased 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

Definitions

  • the present invention relates to a coating system for metal strips and a method for producing single-coated metal strips by means of the coating system.
  • the steel strips are provided from a melt supply with a coating of zinc, a zinc alloy, aluminum or an aluminum alloy for the production of corrosion-resistant surfaces.
  • the metal strip is not immersed in the melt bath, but guided over the melt surface along.
  • the strip is placed immediately above the melt surface in a position where the surface tension and wetting properties of the molten coating metal cause the formation of a meniscus at the surface of the melt bath. Through the meniscus the band is in direct contact with the melt bath and is continuously coated only on one side of the band.
  • the invention has the object of developing a coating system for single-coated metal strips.
  • the invention includes a coating line for metal strips, consisting of a melt bath with liquid coating material, a coating roll and a tape guide for the running over the coating roll metal strip, wherein the coating roll dives only partially in the melt bath and at least the surface of the coating roll consists of a material that is not wettable by the liquid coating material.
  • the invention is based on the consideration that the metal strip to be coated is guided tightly over the coating roller.
  • liquid tin or a tin alloy is applied to a metal strip of copper or a copper alloy as the metal layer. excess Tin is stripped off to set the desired layer thickness.
  • the metal strip to be coated is deflected around the coating roll and tensioned with the required strip tension so as to ensure that no liquid coating material reaches the rear side of the metal strip.
  • the surface of the coating roll consists of a material which is not wetted by the coating material.
  • the molten metal-repellent surfaces or else solid material are suitable.
  • Gray iron or ceramics for example aluminum oxide, silicon nitride or graphite, are particularly suitable in connection with tin-containing coating materials.
  • the particular advantage is that a one-sided coating on metal strips can be produced reliably and with little effort.
  • the excess coating material is deliberately removed in order to set the desired layer thicknesses.
  • the coating system according to the invention is suitable for producing tin-containing surface layers on strip material made of copper or copper alloys.
  • the coating roll has a uniform cylindrical shape along its entire length.
  • the strip material lies on the entire surface of the roll surface.
  • the surface of the coating roller may be concave or tapered towards the center of the roll.
  • the edge regions of the metal strip are pressed more strongly onto the roll surface, whereby an additional seal against the melt is achieved at the strip edges.
  • a conical shape acts, in which the radius of the coating roll as seen from both ends decreases continuously towards the middle of the roll.
  • the concave coating roll substantially only those areas have a curvature of the roll surface at which the coating roll comes into contact with the strip edges.
  • the surface of the coating roll is slightly convexly curved only in the region of the resting strip edges and has a cylindrical shape in the further course in the direction of the roll center.
  • the coating roll has a slightly smaller radius towards the center of the roll than the roll outer edge.
  • the roller surface is formed at the respective edges of the metal strip against a rest on the rest of the flat strip surface a slight curvature, which seals under tensile stress, the marginal areas particularly well against the melt. Penetration of liquid coating material into a gap formed between the coating roll and the strip material can thus be reliably prevented.
  • the axis of the coating roller immersed in the melt bath may be arranged above the melt surface. As a result, the coating roller is only partially brought into contact with the melt.
  • a stripping device downstream of the coating roll.
  • the stripping device may be a stripping element and / or a blow-off nozzle.
  • the coating material is usually applied in excess to the metal strip to be coated.
  • tin-containing metal layers often have the desired final thicknesses of the coating well below the thickness of the originally applied material. Excess tin is stripped over several stages and set the layer thickness targeted.
  • At least the coating roll can be arranged in a closed housing with protective gas in order to avoid oxide formation, in particular on the uncoated hinge side.
  • FIG. 1 shows a side view of the coating installation 1.
  • the coating roller 6 dives only partially into the tin bath 2.
  • the metal strip 14 to be coated on one side is guided tightly against the coating roller 6 by deflection rollers 12 as belt guide with the required strip tension through the tin bath 2, in order to prevent unwanted penetration of the molten metal between metal strip 14 and coating roller 6.
  • the individual process units are mounted on a support frame 10.
  • the running direction L of the metal strip 14 is indicated by an arrow.
  • the roller axis 8 of the coating roller 6 does not dip into the tin bath 2.
  • the coating roller 6 is only partially brought into contact with the melt. Since with tin-containing metal layers the desired final thicknesses of the coating are well below the thickness of the originally applied material, excess tin is removed over two stages. In the strip running direction L, the layer thickness is adjusted for this purpose after the melt bath 2 with a stripping element 16 and a blow-off nozzle 18 in the coated metal strip 14.
  • processing units such as a chemical or mechanical cleaning device of the strip surface before coating.
  • process units can also follow, such as a furnace for the temperature treatment of the applied metal layer.

Landscapes

  • 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)
EP07009199A 2006-05-18 2007-05-08 Installation de revêtement pour bandes métalliques et procédé de fabrication de bandes métalliques recouvertes sur un côté Ceased EP1857565A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006023283A DE102006023283B3 (de) 2006-05-18 2006-05-18 Beschichtungsanlage für Metallbänder und Verfahren zur Herstellung einseitig beschichteter Metallbänder

Publications (1)

Publication Number Publication Date
EP1857565A1 true EP1857565A1 (fr) 2007-11-21

Family

ID=38069564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07009199A Ceased EP1857565A1 (fr) 2006-05-18 2007-05-08 Installation de revêtement pour bandes métalliques et procédé de fabrication de bandes métalliques recouvertes sur un côté

Country Status (3)

Country Link
US (1) US20080020144A1 (fr)
EP (1) EP1857565A1 (fr)
DE (1) DE102006023283B3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9317672B2 (en) 2011-12-14 2016-04-19 Visa International Service Association Online account access control by mobile device
US10496990B2 (en) 2012-02-22 2019-12-03 Visa International Service Association Data security system using mobile communications device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2716198A1 (de) 1976-04-15 1977-11-03 Centre Rech Metallurgique Verfahren zur kontinuierlichen galvanischen verzinkung von metallblechen
JPS5511171A (en) 1978-07-10 1980-01-25 Sumitomo Metal Ind Ltd Fused zinc one side plating apparatus of steel belt
JPS5547374A (en) * 1978-09-28 1980-04-03 Sumitomo Metal Ind Ltd Plating method for single side with molten zinc
JPS5579861A (en) 1978-12-14 1980-06-16 Kawasaki Steel Corp One-side galvanizing apparatus
JPS55138068A (en) * 1979-04-17 1980-10-28 Nippon Steel Corp Guide roller in one side galvanizing equipment
DE3045403A1 (de) * 1979-12-05 1981-06-25 Centre de Recherches Métallurgiques-Centrum voor Research in de Metallurgie-Association sans but lucratif-Vereniging zonder winstoogmerk, Bruxelles Verfahren zum kontinuierlichen beschichten von metallblechen
JPS57174441A (en) * 1981-04-20 1982-10-27 Sumitomo Metal Ind Ltd One-side hot dipping apparatus for cold rolled steel plate
DE2952573C2 (de) 1978-12-30 1983-09-29 Nippon Steel Corp., Tokyo Verfahren und Vorrichtung zur kontinuierlichen Beschichtung einer Seite eines Stahlbandes mit einem geschmolzenen Metall
DE2712003C2 (de) 1976-03-18 1984-03-29 Armco Steel Corp., Middletown, Ohio Verfahren zur Herstellung eines nur einseitig beschichteten Eisenmetall-Bandes und Vorrichtung zur Durchführung dieses Verfahrens
JPH06346208A (ja) * 1993-06-04 1994-12-20 Hitachi Ltd 溶融金属めっき装置
JP2000204459A (ja) * 1999-01-08 2000-07-25 Hitachi Ltd 連続溶融金属めっき装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54114439A (en) * 1978-02-25 1979-09-06 Nippon Steel Corp High temperature atomosphere roll
DE3009590B1 (de) * 1980-03-13 1981-03-12 Mannesmann Demag Ag, 4100 Duisburg Verfahren und Vorrichtung zum einseitigen Beschichten von durchlaufendem Band
JPS5925966A (ja) * 1982-08-03 1984-02-10 Nippon Steel Corp 浸漬亜鉛メツキ浴中の機器材料
JPS6029457A (ja) * 1983-07-29 1985-02-14 Nippon Steel Corp 高耐食性溶融亜鉛メッキ浴浸漬部材
US5571328A (en) * 1994-04-06 1996-11-05 National Steel Corporation Bearing support for submerged rolls in hot dip coating operation

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2712003C2 (de) 1976-03-18 1984-03-29 Armco Steel Corp., Middletown, Ohio Verfahren zur Herstellung eines nur einseitig beschichteten Eisenmetall-Bandes und Vorrichtung zur Durchführung dieses Verfahrens
DE2716198A1 (de) 1976-04-15 1977-11-03 Centre Rech Metallurgique Verfahren zur kontinuierlichen galvanischen verzinkung von metallblechen
JPS5511171A (en) 1978-07-10 1980-01-25 Sumitomo Metal Ind Ltd Fused zinc one side plating apparatus of steel belt
JPS5547374A (en) * 1978-09-28 1980-04-03 Sumitomo Metal Ind Ltd Plating method for single side with molten zinc
JPS5579861A (en) 1978-12-14 1980-06-16 Kawasaki Steel Corp One-side galvanizing apparatus
DE2952573C2 (de) 1978-12-30 1983-09-29 Nippon Steel Corp., Tokyo Verfahren und Vorrichtung zur kontinuierlichen Beschichtung einer Seite eines Stahlbandes mit einem geschmolzenen Metall
JPS55138068A (en) * 1979-04-17 1980-10-28 Nippon Steel Corp Guide roller in one side galvanizing equipment
DE3045403A1 (de) * 1979-12-05 1981-06-25 Centre de Recherches Métallurgiques-Centrum voor Research in de Metallurgie-Association sans but lucratif-Vereniging zonder winstoogmerk, Bruxelles Verfahren zum kontinuierlichen beschichten von metallblechen
JPS57174441A (en) * 1981-04-20 1982-10-27 Sumitomo Metal Ind Ltd One-side hot dipping apparatus for cold rolled steel plate
JPH06346208A (ja) * 1993-06-04 1994-12-20 Hitachi Ltd 溶融金属めっき装置
JP2000204459A (ja) * 1999-01-08 2000-07-25 Hitachi Ltd 連続溶融金属めっき装置

Also Published As

Publication number Publication date
DE102006023283B3 (de) 2007-11-08
US20080020144A1 (en) 2008-01-24

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