JPS5524938A - Manufacture of galvanized cold rolled steel plate excellent in deep drawability - Google Patents

Manufacture of galvanized cold rolled steel plate excellent in deep drawability

Info

Publication number
JPS5524938A
JPS5524938A JP9666178A JP9666178A JPS5524938A JP S5524938 A JPS5524938 A JP S5524938A JP 9666178 A JP9666178 A JP 9666178A JP 9666178 A JP9666178 A JP 9666178A JP S5524938 A JPS5524938 A JP S5524938A
Authority
JP
Japan
Prior art keywords
cold rolled
steel plate
galvanized
deep drawability
rolled steel
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.)
Pending
Application number
JP9666178A
Other languages
Japanese (ja)
Inventor
Hiroyuki Kuroda
Kazuhide Nakaoka
Hiroshi Miwa
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
NKK Corp
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP9666178A priority Critical patent/JPS5524938A/en
Publication of JPS5524938A publication Critical patent/JPS5524938A/en
Pending 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
    • C23C2/34—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
    • 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
    • C23C2/405—Plates of specific length

Landscapes

  • Chemical & Material 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

PURPOSE:To manufacture galvanized cold rolled steel plate having excellent deep drawability and excellent zinc-adhesiveness by the procedure in which steel plate is continuously annealed, cooled gradually, hardened with water, coated with a flux for plating, galvanized with molten zinc, and then subjected to an overaging treatment. CONSTITUTION:A steel, containing 0.06% C, 0.30% Mn, 0.015% P, 0.012% S, and 0.0018% N, is cold rolled and then annealed at 600 to 900 deg.C continuously for recrystallization. Then, the steel is gradually quenched from the temperature to 500 to 650 deg.C to form a ferrite-carbide structure, and then rapidly quenched in water for hardening so as to keep the C solid solution formed at high temperatures at ordinary temperature. Then a flux aqueous solution for galvaniztion, containing zinc chloride as the main component and being kept at a temperature between room temperature and 90 deg.C, is coated on the steel, dried with hot air, and then galvanized in a molten zinc plating bath. Lastly, it is held at 250 to 450 deg.C for 10 to 300 sec. for overaging treatment to obtain galvanized cold rolled steel plate which is excellent in deep drawability.
JP9666178A 1978-08-10 1978-08-10 Manufacture of galvanized cold rolled steel plate excellent in deep drawability Pending JPS5524938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9666178A JPS5524938A (en) 1978-08-10 1978-08-10 Manufacture of galvanized cold rolled steel plate excellent in deep drawability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9666178A JPS5524938A (en) 1978-08-10 1978-08-10 Manufacture of galvanized cold rolled steel plate excellent in deep drawability

Publications (1)

Publication Number Publication Date
JPS5524938A true JPS5524938A (en) 1980-02-22

Family

ID=14170995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9666178A Pending JPS5524938A (en) 1978-08-10 1978-08-10 Manufacture of galvanized cold rolled steel plate excellent in deep drawability

Country Status (1)

Country Link
JP (1) JPS5524938A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952402A (en) * 1984-10-30 1990-08-28 Elan Corporation, P.L.C. Controlled release powder and process for its preparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952402A (en) * 1984-10-30 1990-08-28 Elan Corporation, P.L.C. Controlled release powder and process for its preparation

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