DE59301528D1 - Process for galvanizing a strip and system for carrying out the process - Google Patents
Process for galvanizing a strip and system for carrying out the processInfo
- Publication number
- DE59301528D1 DE59301528D1 DE59301528T DE59301528T DE59301528D1 DE 59301528 D1 DE59301528 D1 DE 59301528D1 DE 59301528 T DE59301528 T DE 59301528T DE 59301528 T DE59301528 T DE 59301528T DE 59301528 D1 DE59301528 D1 DE 59301528D1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- strip
- iron content
- zinc
- galvanising
- 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.)
- Expired - Fee Related
Links
- 238000005246 galvanizing Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 4
- 229910052742 iron Inorganic materials 0.000 abstract 4
- 239000011701 zinc Substances 0.000 abstract 4
- 229910052725 zinc Inorganic materials 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal 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)
- Electroplating Methods And Accessories (AREA)
Abstract
In a process for galvanising a strip (1) the strip (1) is continuously coated with zinc, is then, so as to form a Zn-Fe layer, subjected to a heat treatment in a continuous furnace (10, 11), followed by on-line monitoring of the zinc layer, the iron content of the zinc layer being measured and the galvanising operation being controlled as a function of the iron content of the zinc layer. In order to be able to manufacture a strip (1) having a defined layer structure ensuring uniform quality, a value of the iron content of the Zn-Fe layer is determined as a reference input variable, the actual value of the iron content of the Zn-Fe layer is compared with the reference input variable and any system deviation is compensated via a controller (19) by means of a change in the continuous furnace (10, 11) heating output which serves as the manipulated variable (Fig. 1). <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0065492A AT397815B (en) | 1992-03-31 | 1992-03-31 | METHOD FOR GALVANIZING A TAPE AND SYSTEM FOR IMPLEMENTING THE METHOD |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59301528D1 true DE59301528D1 (en) | 1996-03-14 |
Family
ID=3496298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE59301528T Expired - Fee Related DE59301528D1 (en) | 1992-03-31 | 1993-03-23 | Process for galvanizing a strip and system 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)
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 |
ATE478971T1 (en) * | 2003-07-29 | 2010-09-15 | Voestalpine Stahl Gmbh | METHOD FOR PRODUCING HARDENED COMPONENTS FROM SHEET STEEL |
WO2009021279A1 (en) * | 2007-08-10 | 2009-02-19 | Bluescope Steel Limited | Coating line control |
Family Cites Families (7)
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 |
JPH068791B2 (en) * | 1984-02-10 | 1994-02-02 | 川崎製鉄株式会社 | Measuring method of alloying degree of galvannealed 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 |
US4659437A (en) * | 1985-01-19 | 1987-04-21 | Tokusen Kogyo Kabushiki Kaisha | Method of thermal diffusion alloy plating for steel wire on continuous basis |
JPH01252761A (en) * | 1987-12-08 | 1989-10-09 | Kawasaki Steel Corp | Sheet temperature controller in alloying furnace for hot-dip galvanization |
JPH0637702B2 (en) * | 1988-09-29 | 1994-05-18 | 川崎製鉄株式会社 | Fuel control method for hot dip galvanizing alloy furnace |
JP2904891B2 (en) * | 1990-08-31 | 1999-06-14 | 日新製鋼株式会社 | Online alloying degree measuring device for galvanized steel sheet |
-
1992
- 1992-03-31 AT AT0065492A patent/AT397815B/en not_active IP Right Cessation
-
1993
- 1993-03-23 EP EP93890053A patent/EP0571353B2/en not_active Expired - Lifetime
- 1993-03-23 AT AT93890053T patent/ATE133717T1/en not_active IP Right Cessation
- 1993-03-23 DE DE59301528T patent/DE59301528D1/en not_active Expired - Fee Related
- 1993-03-31 JP JP5074663A patent/JPH06207297A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0571353A3 (en) | 1994-01-26 |
ATE133717T1 (en) | 1996-02-15 |
EP0571353B1 (en) | 1996-01-31 |
JPH06207297A (en) | 1994-07-26 |
EP0571353A2 (en) | 1993-11-24 |
AT397815B (en) | 1994-07-25 |
EP0571353B2 (en) | 2000-01-26 |
ATA65492A (en) | 1993-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |