BE805243A - Cold rolled steel sheet - for coachwork with slow ageing and improved extensibility and shapability by pressing - Google Patents

Cold rolled steel sheet - for coachwork with slow ageing and improved extensibility and shapability by pressing

Info

Publication number
BE805243A
BE805243A BE2053083A BE2053083A BE805243A BE 805243 A BE805243 A BE 805243A BE 2053083 A BE2053083 A BE 2053083A BE 2053083 A BE2053083 A BE 2053083A BE 805243 A BE805243 A BE 805243A
Authority
BE
Belgium
Prior art keywords
steel sheet
rolled steel
coachwork
shapability
pressing
Prior art date
Application number
BE2053083A
Other languages
French (fr)
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of BE805243A publication Critical patent/BE805243A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0473—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

The cold-rolled steel sheet has not more than 0.1% C and not more than 0.30% Mn, and is such that 0.002 x N (ppm) - 0.03 = K; =0.17 + 0.002 x N (ppm) where K = Mn - 55/32 S - 55/16 O The cold-rolled steel sheet is made by passing a cold-rolled steel sheet containing not more than 0.1% C into a continuous annealing furnace consisting of (a) a zone of heating and hardening (or soaking or tempering) (b) a first cooling zone, (c) an overaging zone, and (d) a second cooling zone, in series. Heating and hardening (or soaking or tempering) are performed in (a) for 30 sec. to 5 min. at 650-900 degrees C, cooling to the starting temp. for overaging or below in (b), overaging in (c) starting at 400-500 degrees C and reducing to between 200-500 degrees C over 2-10 min., this overaging being completed between 200 and 350 degrees C.
BE2053083A 1972-09-26 1973-09-25 Cold rolled steel sheet - for coachwork with slow ageing and improved extensibility and shapability by pressing BE805243A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9572872A JPS5341613B2 (en) 1972-09-26 1972-09-26

Publications (1)

Publication Number Publication Date
BE805243A true BE805243A (en) 1974-01-16

Family

ID=14145522

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2053083A BE805243A (en) 1972-09-26 1973-09-25 Cold rolled steel sheet - for coachwork with slow ageing and improved extensibility and shapability by pressing

Country Status (4)

Country Link
JP (1) JPS5341613B2 (en)
BE (1) BE805243A (en)
BR (1) BR7307457D0 (en)
ZA (1) ZA737415B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584924U (en) * 1978-12-06 1980-06-11
JPS5813611B2 (en) * 1978-12-29 1983-03-15 新日本製鐵株式会社 Continuous annealing method and equipment for cold rolled steel strip
KR101726077B1 (en) * 2015-11-24 2017-04-12 한양대학교 산학협력단 Composite of inorganic paticle-catechol and method for preparing the same

Also Published As

Publication number Publication date
JPS4953116A (en) 1974-05-23
ZA737415B (en) 1974-10-30
JPS5341613B2 (en) 1978-11-06
BR7307457D0 (en) 1974-08-15

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: NIPPON STEEL CORP.

Effective date: 19930925