JPS5550455A - Preparation of zinc hot dipping high tensile steel sheet excellent in cold working property and aging hardening property - Google Patents

Preparation of zinc hot dipping high tensile steel sheet excellent in cold working property and aging hardening property

Info

Publication number
JPS5550455A
JPS5550455A JP12184878A JP12184878A JPS5550455A JP S5550455 A JPS5550455 A JP S5550455A JP 12184878 A JP12184878 A JP 12184878A JP 12184878 A JP12184878 A JP 12184878A JP S5550455 A JPS5550455 A JP S5550455A
Authority
JP
Japan
Prior art keywords
formula
property
temperature
cooling
hot dipping
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
JP12184878A
Other languages
Japanese (ja)
Inventor
Minoru Nishida
Koichi Higuchi
Toshiyuki Kato
Tomoo Tanaka
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 Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP12184878A priority Critical patent/JPS5550455A/en
Publication of JPS5550455A publication Critical patent/JPS5550455A/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
    • C23C2/405—Plates of specific length
    • 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
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon

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 obtain the above mentioned sheet having a large mixing structure of working property and aging hardening property, by carrying out Zn hot dipping and cooling at a fixed speed and moreover, carrying out over aging treatment at lower temperature than that of cooling at a fixed speed after heating the thin sheet at the temperature of Ac1-Ac3. CONSTITUTION:Thin steel sheet composed of C;0.005-0.15%, Mn;0.25-2.0%, Si; not more than 1.0%, P; not more than 0.15%, S; not more than 0.025%, Al; not more than 0.1%, Fe; balance and innevitable impurities. Next, the above sheet is cooled at the cooling speed more than the critical cooling speed CR1 by the formula II necessary to obtain mixing structure at the temperature from 700 deg.C to 450- 550 deg.C of Zn plating finish after heating in the extent of (alpha+gamma) region heating temperature, that is, Ac1-Ac3. But, ME1 in the formula II is shown in the formula I. Next, cooling is carried out at the critical cooling speed CR2 by the formula necessary to obtain mixing structure at the temperature from the above mentioned 450-550 deg.C of Zn plating finish to not more than 300 deg.C. But, Me2 in the formula IV is shown in the formula III. As a result, Zn hot dipping high tensile sheet having superior cold working property and painting sintering hardening property, is able to obtain.
JP12184878A 1978-10-03 1978-10-03 Preparation of zinc hot dipping high tensile steel sheet excellent in cold working property and aging hardening property Pending JPS5550455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12184878A JPS5550455A (en) 1978-10-03 1978-10-03 Preparation of zinc hot dipping high tensile steel sheet excellent in cold working property and aging hardening property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12184878A JPS5550455A (en) 1978-10-03 1978-10-03 Preparation of zinc hot dipping high tensile steel sheet excellent in cold working property and aging hardening property

Publications (1)

Publication Number Publication Date
JPS5550455A true JPS5550455A (en) 1980-04-12

Family

ID=14821422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12184878A Pending JPS5550455A (en) 1978-10-03 1978-10-03 Preparation of zinc hot dipping high tensile steel sheet excellent in cold working property and aging hardening property

Country Status (1)

Country Link
JP (1) JPS5550455A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506788A1 (en) * 1981-05-27 1982-12-03 Ra Shipping Ltd Oy LOW ALLOY STEEL STRIP COATING PROCESS
WO2000018976A1 (en) 1998-09-29 2000-04-06 Kawasaki Steel Corporation High strength thin steel sheet, high strength alloyed hot-dip zinc-coated steel sheet, and method for producing them
JP2002146502A (en) * 2000-08-28 2002-05-22 Nippon Steel Corp Galvanized high strength steel having good appearance
JP2007277717A (en) * 2006-03-17 2007-10-25 Kobe Steel Ltd Steel sheet for brazing bonding to aluminum based material, bonding material using the steel sheet, and bonding joint
US8828153B2 (en) 2005-07-04 2014-09-09 Nippon Steel & Sumitomo Metal Corporation High-strength cold-rolled steel sheet and high-strength plated steel sheet

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506788A1 (en) * 1981-05-27 1982-12-03 Ra Shipping Ltd Oy LOW ALLOY STEEL STRIP COATING PROCESS
WO2000018976A1 (en) 1998-09-29 2000-04-06 Kawasaki Steel Corporation High strength thin steel sheet, high strength alloyed hot-dip zinc-coated steel sheet, and method for producing them
US6410163B1 (en) 1998-09-29 2002-06-25 Kawasaki Steel Corporation High strength thin steel sheet, high strength alloyed hot-dip zinc-coated steel sheet, and method for producing them
JP2002146502A (en) * 2000-08-28 2002-05-22 Nippon Steel Corp Galvanized high strength steel having good appearance
US8828153B2 (en) 2005-07-04 2014-09-09 Nippon Steel & Sumitomo Metal Corporation High-strength cold-rolled steel sheet and high-strength plated steel sheet
JP2007277717A (en) * 2006-03-17 2007-10-25 Kobe Steel Ltd Steel sheet for brazing bonding to aluminum based material, bonding material using the steel sheet, and bonding joint

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