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WO1999031949A3 - Method and device for coating a metal strip - Google Patents

Method and device for coating a metal strip Download PDF

Info

Publication number
WO1999031949A3
WO1999031949A3 PCT/DE1998/003599 DE9803599W WO9931949A3 WO 1999031949 A3 WO1999031949 A3 WO 1999031949A3 DE 9803599 W DE9803599 W DE 9803599W WO 9931949 A3 WO9931949 A3 WO 9931949A3
Authority
WO
WIPO (PCT)
Prior art keywords
coating
metal strip
metal
bath
nozzle
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
PCT/DE1998/003599
Other languages
German (de)
French (fr)
Other versions
WO1999031949A2 (en
Inventor
Wilfried Schlechter
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to DE19881932T priority Critical patent/DE19881932D2/en
Publication of WO1999031949A2 publication Critical patent/WO1999031949A2/en
Publication of WO1999031949A3 publication Critical patent/WO1999031949A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/0265—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric the criterion being a learning criterion
    • G05B13/027—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric the criterion being a learning criterion using neural networks only
    • 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
    • C23C2/20—Strips; Plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Chemical & Material Sciences (AREA)
  • Evolutionary Computation (AREA)
  • General Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

The invention relates to a method and a device for coating a metal strip (5). The metal strip passes through a bath (11) of coating metal, especially zinc. After the metal strip has left the bath (11), part of the coating metal is blasted away with air from at least one nozzle (6, 10). The thickness of the metal coating on the metal strip (5) is regulated according to the distance (a, ao, au) between the metal strip (5) and the nozzle (6, 10), using a coating model (30). This distance is determined using an inverse coating model (31).
PCT/DE1998/003599 1997-12-19 1998-12-07 Method and device for coating a metal strip Ceased WO1999031949A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19881932T DE19881932D2 (en) 1997-12-19 1998-12-07 Method and device for coating a metal strip

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997156877 DE19756877A1 (en) 1997-12-19 1997-12-19 Method and device for coating a metal strip
DE19756877.7 1997-12-19

Publications (2)

Publication Number Publication Date
WO1999031949A2 WO1999031949A2 (en) 1999-07-01
WO1999031949A3 true WO1999031949A3 (en) 1999-08-26

Family

ID=7852747

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/003599 Ceased WO1999031949A2 (en) 1997-12-19 1998-12-07 Method and device for coating a metal strip

Country Status (2)

Country Link
DE (2) DE19756877A1 (en)
WO (1) WO1999031949A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059567A1 (en) * 2000-11-30 2002-06-13 Siemens Ag Method and device for calculating process variables of an industrial process
FR2913432B1 (en) * 2007-03-07 2011-06-17 Siemens Vai Metals Tech Sas METHOD AND INSTALLATION FOR CONTINUOUS DEPOSITION OF A COATING ON A TAPE SUPPORT
KR102180828B1 (en) 2018-09-21 2020-11-19 주식회사 포스코 Coating control device and method
EP3734220A1 (en) * 2020-02-21 2020-11-04 Primetals Technologies Austria GmbH Installation for measuring the coating thickness of a running metal product

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521749A1 (en) * 1991-07-01 1993-01-07 Sollac Process and apparatus for regulating a metallurgical treatment made on a moving substrate
EP0707897A1 (en) * 1993-04-28 1996-04-24 Kawasaki Steel Corporation Adhesion quantity regulation method by gas wiping
US5683514A (en) * 1992-12-15 1997-11-04 Weirton Steel Corporation Coating control apparatus
EP0663632B1 (en) * 1994-01-17 1997-12-10 Siemens Aktiengesellschaft Method and apparatus for controlling a process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1521406B2 (en) * 1963-05-22 1971-04-15 National Steel Corp , Pittsburgh, Pa (V St A ) PROCESS AND DEVICE FOR CONTROLLING THE COATING THICKNESS OF THE METAL COATING OF A METALLIC STRIP, IN PARTICULAR A GALVANIZED STEEL STRIP
DE1796303B2 (en) * 1964-11-05 1974-08-01 National Steel Corp., Pittsburgh, Pa. (V.St.A.) Device for controlling the coating thickness of a metal coating when coating a metal strip. Eliminated from: 1521417
JPH06116696A (en) * 1992-10-06 1994-04-26 Nippon Steel Corp Control device for coating amount of hot-dipped steel sheet
JP2900969B2 (en) * 1993-05-31 1999-06-02 川崎製鉄株式会社 Method for controlling coating weight of hot-dip plating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521749A1 (en) * 1991-07-01 1993-01-07 Sollac Process and apparatus for regulating a metallurgical treatment made on a moving substrate
US5683514A (en) * 1992-12-15 1997-11-04 Weirton Steel Corporation Coating control apparatus
EP0707897A1 (en) * 1993-04-28 1996-04-24 Kawasaki Steel Corporation Adhesion quantity regulation method by gas wiping
EP0663632B1 (en) * 1994-01-17 1997-12-10 Siemens Aktiengesellschaft Method and apparatus for controlling a process

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
"coating thickness measurement at the heart of hot dip galvanising line control", STEEL TIMES INTERNATIONAL, vol. 20, no. 6, - 1 November 1996 (1996-11-01), pages 24, XP000639896 *
HARALD WEGMANN: "fuzzy control and neural networks", PROCEEDINGS OF THE CONFERENCE ON CONTROL APPLICATIONS, vol. 2, no. conf3, 24 August 1996 (1996-08-24) - 26 August 1994 (1994-08-26), glasgow,schottland, pages 1245 - 1249, XP000594392 *
HEINRICH WILHELM GUDENAU: "regelung der schichtdicke in feuerbeschichtungsanlagen mit hilfe eines neuronales netzes", STAHL UND EISEN, vol. 114, no. 11, - November 1994 (1994-11-01), dusseldorf,de, pages 109 - 110, XP000484936 *
JAMES ADAMS: "coating mass control on no.2 galavnizing line at ltv steel's indiana harbor works", IRON AND STEEL ENGINEER, vol. 73, no. 1, - January 1996 (1996-01-01), pittsburgh,u, pages 22 - 29, XP000556488 *
STEVEN W. MARKWARD: "integrated neural system for coating weight control of a hot dip galvanizing line", IRON AND STEEL ENGINEER, vol. 72, no. 11, - November 1995 (1995-11-01), pittsburgh,us, pages 45 - 49, XP000551837 *
YOSHINORI ANABUKI: "coating weight control at kawasaki steel continuous galvanizing line", IRON AND STEEL ENGINEER, vol. 74, no. 12, - 1 December 1997 (1997-12-01), pittsburgh,us, pages 37 - 39, XP000734458 *

Also Published As

Publication number Publication date
DE19881932D2 (en) 2000-11-30
WO1999031949A2 (en) 1999-07-01
DE19756877A1 (en) 1999-07-01

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