JPS5613459A - High-tensile galvanized steel sheet with superior workability and its manufacture - Google Patents

High-tensile galvanized steel sheet with superior workability and its manufacture

Info

Publication number
JPS5613459A
JPS5613459A JP8924279A JP8924279A JPS5613459A JP S5613459 A JPS5613459 A JP S5613459A JP 8924279 A JP8924279 A JP 8924279A JP 8924279 A JP8924279 A JP 8924279A JP S5613459 A JPS5613459 A JP S5613459A
Authority
JP
Japan
Prior art keywords
sheet
manufacture
hot
galvanized steel
steel sheet
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
JP8924279A
Other languages
Japanese (ja)
Inventor
Arihiko Morita
Norio Tsukiji
Seiichi Hamanaka
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.)
Nippon Steel Nisshin Co Ltd
Original Assignee
Nisshin Steel Co 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 Nisshin Steel Co Ltd filed Critical Nisshin Steel Co Ltd
Priority to JP8924279A priority Critical patent/JPS5613459A/en
Publication of JPS5613459A publication Critical patent/JPS5613459A/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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • 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
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:To manufacture a hot-rolled high-tensile galvanized steel sheet having superior tensile strength and workability by hot rolling a high Mn steel slab under specified conditions, batchwise annealing the resulting sheet to convert the structure into a composite structure of ferrite and low temp. transformation phase, and galvanizing the sheet. CONSTITUTION:A steel slab contg. 0.05-0.15% C, 2.0-3.0% Mn, 0.1-0.8% Si and 0.01-0.10% Al is hot rolled to a sheet and coiled at >=650 deg.C. This hot rolled sheet is pickled and batchwise annealed at a temp. of the Ac1 transformation point-the Ac3 transformation point to convert the structure into a composite structure of ferrite and low temp. transformation phase. The sheet is then subjected to flux type galvanizing to manufacture a hot-rolled high-tensile galvanized steel sheet having >=50kg/cm<2> tensile strength and superior workability.
JP8924279A 1979-07-16 1979-07-16 High-tensile galvanized steel sheet with superior workability and its manufacture Pending JPS5613459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8924279A JPS5613459A (en) 1979-07-16 1979-07-16 High-tensile galvanized steel sheet with superior workability and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8924279A JPS5613459A (en) 1979-07-16 1979-07-16 High-tensile galvanized steel sheet with superior workability and its manufacture

Publications (1)

Publication Number Publication Date
JPS5613459A true JPS5613459A (en) 1981-02-09

Family

ID=13965272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8924279A Pending JPS5613459A (en) 1979-07-16 1979-07-16 High-tensile galvanized steel sheet with superior workability and its manufacture

Country Status (1)

Country Link
JP (1) JPS5613459A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56108831A (en) * 1980-02-04 1981-08-28 Nisshin Steel Co Ltd Manufacture of low yield ratio, high tensile strength steel sheet plated with molten aluminum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56108831A (en) * 1980-02-04 1981-08-28 Nisshin Steel Co Ltd Manufacture of low yield ratio, high tensile strength steel sheet plated with molten aluminum
JPH0152449B2 (en) * 1980-02-04 1989-11-08 Nisshin Steel Co Ltd

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