EP0571353A3 - Process of galvanizing a strip and arrangement for carrying out the process - Google Patents

Process of galvanizing a strip and arrangement for carrying out the process Download PDF

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Publication number
EP0571353A3
EP0571353A3 EP19930890053 EP93890053A EP0571353A3 EP 0571353 A3 EP0571353 A3 EP 0571353A3 EP 19930890053 EP19930890053 EP 19930890053 EP 93890053 A EP93890053 A EP 93890053A EP 0571353 A3 EP0571353 A3 EP 0571353A3
Authority
EP
European Patent Office
Prior art keywords
layer
strip
iron content
zinc
galvanizing
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
EP19930890053
Other languages
German (de)
French (fr)
Other versions
EP0571353A2 (en
EP0571353B2 (en
EP0571353B1 (en
Inventor
Josef Dipl.-Ing. Faderl
Manfred Dipl.-Ing. Maschek
Alois Dipl.-Ing. Stadlbauer
Klaus Dr. Dipl.-Ing. Zeman
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.)
Voestalpine Stahl GmbH
Primetals Technologies Austria GmbH
Voestalpine Stahl Linz GmbH
Original Assignee
Voestalpine Stahl GmbH
Voestalpine Stahl Linz GmbH
Voest Alpine Industrienlagenbau GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3496298&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0571353(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voestalpine Stahl GmbH, Voestalpine Stahl Linz GmbH, Voest Alpine Industrienlagenbau GmbH filed Critical Voestalpine Stahl GmbH
Publication of EP0571353A2 publication Critical patent/EP0571353A2/en
Publication of EP0571353A3 publication Critical patent/EP0571353A3/en
Application granted granted Critical
Publication of EP0571353B1 publication Critical patent/EP0571353B1/en
Publication of EP0571353B2 publication Critical patent/EP0571353B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • 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
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/29—Cooling or quenching

Abstract

Bei einem Verfahren zum Verzinken eines Bandes (1) wird das Band (1) kontinuierlich mit Zink beschichtet, anschließend zur Bildung einer Zn-Fe-Schicht einer Wärmebehandlung in einem Durchlaufofen (10, 11) und weiters einer on-line-Kontrolle der Zinkschicht unter Messen des Eisengehaltes der Zinkschicht unterzogen, wobei der Verzinkungsvorgang in Abhängigkeit des Eisengehaltes der Zinkschicht gesteuert wird. In a method for galvanizing a strip (1), the strip (1) continuously coated with zinc, then for Formation of a Zn-Fe layer of a heat treatment in one Continuous furnace (10, 11) and an on-line control of the Zinc layer while measuring the iron content of the zinc layer subjected, the galvanizing process depending on the Iron content of the zinc layer is controlled.

Um ein Band (1) mit einem definierten Schichtaufbau unter Sicherstellung einer gleichmäßigen Qualität herstellen zu können, wird ein Wert des Eisengehaltes der Zn-Fe-Schicht als Führungsgröße bestimmt, der Istwert des Eisengehaltes der Zn-Fe-Schicht mit der Führungsgröße verglichen und eine Regelabweichung über einen Regler (19) durch eine Änderung der als Stellgröße dienenden Heizleistung des Durchlaufofens (10, 11) ausgeglichen (Fig. 1). In order to be able to produce a strip (1) with a defined layer structure while ensuring a uniform quality, a value of the iron content of the Zn-Fe layer is determined as the reference variable, the actual value of the iron content of the Zn-Fe layer is compared with the reference variable and one Control deviation is compensated for by a controller (19) by changing the heating power of the continuous furnace (10, 11) serving as a control variable (FIG. 1).

EP93890053A 1992-03-31 1993-03-23 Process of galvanizing a strip and arrangement for carrying out the process Expired - Lifetime EP0571353B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT654/92 1992-03-31
AT0065492A AT397815B (en) 1992-03-31 1992-03-31 METHOD FOR GALVANIZING A TAPE AND SYSTEM FOR IMPLEMENTING THE METHOD
AT65492 1992-03-31

Publications (4)

Publication Number Publication Date
EP0571353A2 EP0571353A2 (en) 1993-11-24
EP0571353A3 true EP0571353A3 (en) 1994-01-26
EP0571353B1 EP0571353B1 (en) 1996-01-31
EP0571353B2 EP0571353B2 (en) 2000-01-26

Family

ID=3496298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93890053A Expired - Lifetime EP0571353B2 (en) 1992-03-31 1993-03-23 Process of galvanizing a strip and arrangement for carrying out the process

Country Status (4)

Country Link
EP (1) EP0571353B2 (en)
JP (1) JPH06207297A (en)
AT (2) AT397815B (en)
DE (1) DE59301528D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT405770B (en) * 1997-09-24 1999-11-25 Voest Alpine Ind Anlagen METHOD FOR CONTROLLING A '' GALVANNEALING '' PROCESS
DE10021948B4 (en) * 2000-05-05 2004-02-19 Thyssenkrupp Stahl Ag Process and plant for galvanizing a steel strip
ES2525731T3 (en) * 2003-07-29 2014-12-29 Voestalpine Stahl Gmbh Procedure for the production of a hardened steel component
WO2009021279A1 (en) * 2007-08-10 2009-02-19 Bluescope Steel Limited Coating line control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60169553A (en) * 1984-02-10 1985-09-03 Kawasaki Steel Corp Method for measuring degree of alloying of alloyed galvanized steel sheet
FR2563537A1 (en) * 1984-04-25 1985-10-31 Stein Heurtey Process and device for diffusion annealing for obtaining metal sheets with alloy coating
FR2576037A1 (en) * 1985-01-19 1986-07-18 Tokusen Kogyo Kk METHOD FOR PLATING A THERMAL DIFFUSION ALLOY FOR A STEEL WIRE ON A CONTINUOUS BASE
JPH01252761A (en) * 1987-12-08 1989-10-09 Kawasaki Steel Corp Sheet temperature controller in alloying furnace for hot-dip galvanization
JPH0293056A (en) * 1988-09-29 1990-04-03 Kawasaki Steel Corp Method for controlling fuel in galvanization alloying furnace
EP0473154A2 (en) * 1990-08-31 1992-03-04 Nisshin Steel Co., Ltd. System for making an on-line determination of degree of alloying in galvannealed steel sheets

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307968A (en) * 1963-09-03 1967-03-07 Armco Steel Corp Method and apparatus for controlling the alloying of zinc coatings

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60169553A (en) * 1984-02-10 1985-09-03 Kawasaki Steel Corp Method for measuring degree of alloying of alloyed galvanized steel sheet
FR2563537A1 (en) * 1984-04-25 1985-10-31 Stein Heurtey Process and device for diffusion annealing for obtaining metal sheets with alloy coating
FR2576037A1 (en) * 1985-01-19 1986-07-18 Tokusen Kogyo Kk METHOD FOR PLATING A THERMAL DIFFUSION ALLOY FOR A STEEL WIRE ON A CONTINUOUS BASE
JPH01252761A (en) * 1987-12-08 1989-10-09 Kawasaki Steel Corp Sheet temperature controller in alloying furnace for hot-dip galvanization
JPH0293056A (en) * 1988-09-29 1990-04-03 Kawasaki Steel Corp Method for controlling fuel in galvanization alloying furnace
EP0473154A2 (en) * 1990-08-31 1992-03-04 Nisshin Steel Co., Ltd. System for making an on-line determination of degree of alloying in galvannealed steel sheets

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 85-253888C41, "determining alloying degree in galvanised steel" *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 007 (C - 673) 10 January 1989 (1989-01-10) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 294 (C - 0732) 26 June 1990 (1990-06-26) *

Also Published As

Publication number Publication date
ATA65492A (en) 1993-11-15
EP0571353A2 (en) 1993-11-24
ATE133717T1 (en) 1996-02-15
AT397815B (en) 1994-07-25
JPH06207297A (en) 1994-07-26
EP0571353B2 (en) 2000-01-26
DE59301528D1 (en) 1996-03-14
EP0571353B1 (en) 1996-01-31

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