EP0188813A3 - Method and apparatus for coating strips with fusible metal, especially for the hot dip coating of steel strips - Google Patents

Method and apparatus for coating strips with fusible metal, especially for the hot dip coating of steel strips Download PDF

Info

Publication number
EP0188813A3
EP0188813A3 EP85116552A EP85116552A EP0188813A3 EP 0188813 A3 EP0188813 A3 EP 0188813A3 EP 85116552 A EP85116552 A EP 85116552A EP 85116552 A EP85116552 A EP 85116552A EP 0188813 A3 EP0188813 A3 EP 0188813A3
Authority
EP
European Patent Office
Prior art keywords
coating
strips
curvature
misalignment
hot dip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85116552A
Other languages
German (de)
French (fr)
Other versions
EP0188813A2 (en
Inventor
Heinrich Dipl.-Ing. Schmitz
Friedrich Meuters
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.)
Thyssen Stahl AG
Original Assignee
Thyssen 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 Thyssen Stahl AG filed Critical Thyssen Stahl AG
Publication of EP0188813A2 publication Critical patent/EP0188813A2/en
Publication of EP0188813A3 publication Critical patent/EP0188813A3/en
Withdrawn legal-status Critical Current

Links

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
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • 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
    • C23C2/40—Plates; Strips

Abstract

Die Erfindung bezieht sich auf ein Verfahren und eine Vor­ richtung zum Beschichten von Bändern mit schmelzflüssigem Metall, insbesondere zum Feuerverzinken von Metalband. Um durch eine Wölbung oder Schiefstellung des Bandes im Durchtrittsspalt zwischen den Abstreifdüsen bedingte un­ gleichmäßige Beschichtung zu vermeiden, wird durch Ab­ standsmessung des Bandes die Planheit im Bereich der Ab­ streifdüsen (6) ermittelt. Wird eine Soll-Ist-Wertabweichung festgestellt, dann werden das Band unmittelbar vor Verlassen des Bades angreifende Kräfte in einem Maße wirksam, daß die Schiefstellung bzw. Wölbung des Bandes im Durchtrittsspalt beseitigt wird. Durch wiederholte Überprüfung werden diese Kräfte so klein wie möglich gehalten, um die Wölbung bzw. Schiefstellung des Bandes zu vermeiden. The invention relates to a method and a front direction for coating tapes with molten Metal, in particular for hot-dip galvanizing metal strips. Around due to a curvature or misalignment of the band in the Passage gap between the scraper nozzles conditional un Avoiding uniform coating is ensured by Ab level measurement of the strip the flatness in the area of the ab strip nozzles (6) determined. Becomes a target-actual value deviation are determined, then the tape is immediately before leaving forces acting on the bath are effective to such an extent that the Misalignment or curvature of the band in the passage gap is eliminated. Through repeated review, these will Forces are kept as small as possible to reduce the curvature or Avoid misalignment of the belt.

EP85116552A 1985-01-12 1985-12-24 Method and apparatus for coating strips with fusible metal, especially for the hot dip coating of steel strips Withdrawn EP0188813A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3500878 1985-01-12
DE19853500878 DE3500878C1 (en) 1985-01-12 1985-01-12 Method and device for coating strips with molten metal, in particular for hot-dip galvanizing steel strips

Publications (2)

Publication Number Publication Date
EP0188813A2 EP0188813A2 (en) 1986-07-30
EP0188813A3 true EP0188813A3 (en) 1989-02-08

Family

ID=6259706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116552A Withdrawn EP0188813A3 (en) 1985-01-12 1985-12-24 Method and apparatus for coating strips with fusible metal, especially for the hot dip coating of steel strips

Country Status (2)

Country Link
EP (1) EP0188813A3 (en)
DE (1) DE3500878C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0826444B2 (en) * 1988-03-30 1996-03-13 株式会社日立製作所 Continuous hot dipping equipment
DE59304141D1 (en) * 1992-07-16 1996-11-14 Duma Masch Anlagenbau COATING DEVICE
DE4342904C1 (en) * 1993-03-02 1995-04-27 Duma Masch Anlagenbau Blow off device
DE102007042897A1 (en) * 2007-09-08 2009-03-12 Sms Demag Ag Device for band position control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643627A (en) * 1970-07-23 1972-02-22 Kaiser Ind Corp Apparatus for interchanging coating pots at a coating line station
US3841557A (en) * 1972-10-06 1974-10-15 Nat Steel Corp Coating thickness control and fluid handling
FR2223474A1 (en) * 1973-03-29 1974-10-25 Siemens Ag
DE3210388A1 (en) * 1982-03-20 1983-10-06 Paul Fontaine Device for skimming off excess fluid from belt material running in front of it

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548124A (en) * 1977-06-21 1979-01-22 Nippon Steel Corp Controlling method for amount of molten metal adhered in continuous hot dipping
JPS6230865A (en) * 1985-07-31 1987-02-09 Sumitomo Metal Ind Ltd Method and apparatus for producing metal hot dipped strip

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643627A (en) * 1970-07-23 1972-02-22 Kaiser Ind Corp Apparatus for interchanging coating pots at a coating line station
US3841557A (en) * 1972-10-06 1974-10-15 Nat Steel Corp Coating thickness control and fluid handling
FR2223474A1 (en) * 1973-03-29 1974-10-25 Siemens Ag
DE3210388A1 (en) * 1982-03-20 1983-10-06 Paul Fontaine Device for skimming off excess fluid from belt material running in front of it

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 11, Nr. 214 (C-434)[2661], 10. Juli 1987; & JP-A-62 030 865 (SUMITOMO METAL IND. LTD) 09-02-1987 *
PATENT ABSTRACTS OF JAPAN, Band 3, Nr. 32 (C-40), 17. März 1979, Seite 105 (C-40); & JP-A-54 008 124 (SHIN NIPPON SEITETSU K.K.) 22-01-1979 *

Also Published As

Publication number Publication date
DE3500878C1 (en) 1986-01-09
EP0188813A2 (en) 1986-07-30

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Inventor name: SCHMITZ, HEINRICH, DIPL.-ING.

Inventor name: MEUTERS, FRIEDRICH