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GB1430828A - Continuous hot-dip galvanizing process for steel strip - Google Patents

Continuous hot-dip galvanizing process for steel strip

Info

Publication number
GB1430828A
GB1430828A GB3750773A GB3750773A GB1430828A GB 1430828 A GB1430828 A GB 1430828A GB 3750773 A GB3750773 A GB 3750773A GB 3750773 A GB3750773 A GB 3750773A GB 1430828 A GB1430828 A GB 1430828A
Authority
GB
United Kingdom
Prior art keywords
strip
steel strip
continuous hot
dip galvanizing
temperature
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
Application number
GB3750773A
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1430828A publication Critical patent/GB1430828A/en
Expired 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C23C2/0224—Two or more thermal pretreatments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (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)

Abstract

1430828 Hot-dip zinc galvanizing steel strip NIPPON KOKAN KK 8 Aug 1973 [10 Aug 1972] 37507/73 Heading C7F In continuous hot-dip galvanizing steel strip in which the strip is pre-heated above the dipping temperature and is cooled in three steps, viz rapid, slow and rapid, the final cooling is controlled to give a strip temperature of 460-300‹C immediately prior to passing into the molten zinc. Conventional processes of preparing the strip are used with e.g. an air cooler or fan for the final step. The strip entry temperature to the bath may be monitored and controlled constant by automatic retroactive control of the cooler. In this process the zinc bath must be externally heated.
GB3750773A 1972-08-10 1973-08-08 Continuous hot-dip galvanizing process for steel strip Expired GB1430828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7951072A JPS56503B2 (en) 1972-08-10 1972-08-10

Publications (1)

Publication Number Publication Date
GB1430828A true GB1430828A (en) 1976-04-07

Family

ID=13691937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3750773A Expired GB1430828A (en) 1972-08-10 1973-08-08 Continuous hot-dip galvanizing process for steel strip

Country Status (7)

Country Link
JP (1) JPS56503B2 (en)
BR (1) BR7306124D0 (en)
DE (1) DE2340413A1 (en)
FR (1) FR2195698B1 (en)
GB (1) GB1430828A (en)
PL (1) PL92487B1 (en)
ZA (1) ZA735438B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103320736A (en) * 2013-05-27 2013-09-25 首钢总公司 A control method for startup of continuous hot dip galvanizing
CN114756065A (en) * 2021-01-11 2022-07-15 宝钢日铁汽车板有限公司 A kind of hot-dip galvanized strip steel plate temperature control method before entering the zinc pot

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5124531A (en) * 1974-08-26 1976-02-27 Nippon Steel Corp Kakosei nisugureta aenmetsukikohanno seizoho
US4202921A (en) * 1976-02-24 1980-05-13 Aktiebolaget Garphytte Bruk Process for the preparation of rope and spring wire of carbon steel with an improved corrosion resistance
LU74569A1 (en) * 1976-03-16 1977-09-27
JPS5610396A (en) * 1979-07-07 1981-02-02 Nobuo Miyazawa Additive for acid bath for descaling of stainless steel
JPS60177190A (en) * 1984-02-22 1985-09-11 Hitachi Elevator Eng & Serv Co Ltd Cleaning agent
FR2563237A1 (en) * 1984-04-24 1985-10-25 Maubeuge Fer Metallic product coated with a zinc alloy comprising reliefs and process for the manufacture of the said product
FR2593831B1 (en) * 1986-02-06 1994-01-21 Irsid PROCESS FOR THE PROTECTIVE COATING OF AN IRON OR STEEL PRODUCT AND COATED PRODUCT

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB775074A (en) * 1953-07-31 1957-05-22 Wheeling Steel Corp Improvements in tight coat galvanised un-annealed steels
US3322560A (en) * 1963-02-13 1967-05-30 Inland Steel Co Control of spangle in hot dip galvanizing
US3369923A (en) * 1964-12-14 1968-02-20 Bethlehem Steel Corp Method of producing heavy coatings by continuous galvanizing
FR1473684A (en) * 1966-04-01 1967-03-17 Bethlehem Steel Corp Article made of ferrous metal, protected against corrosion by a coating and method of applying this coating

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103320736A (en) * 2013-05-27 2013-09-25 首钢总公司 A control method for startup of continuous hot dip galvanizing
CN103320736B (en) * 2013-05-27 2015-09-30 首钢总公司 A kind of continuous hot galvanizing Starting control method
CN114756065A (en) * 2021-01-11 2022-07-15 宝钢日铁汽车板有限公司 A kind of hot-dip galvanized strip steel plate temperature control method before entering the zinc pot
CN114756065B (en) * 2021-01-11 2023-08-15 宝钢日铁汽车板有限公司 Plate temperature control method for hot dip galvanized strip steel before entering zinc pot

Also Published As

Publication number Publication date
FR2195698B1 (en) 1976-09-17
JPS56503B2 (en) 1981-01-08
FR2195698A1 (en) 1974-03-08
DE2340413A1 (en) 1974-02-28
JPS4936538A (en) 1974-04-04
AU5905273A (en) 1975-02-13
ZA735438B (en) 1974-07-31
BR7306124D0 (en) 1974-06-27
PL92487B1 (en) 1977-04-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee