DE69225294D1 - Process for producing cold-rolled steel sheets with high resistance to embrittlement by cold working and with low flat anisotropy - Google Patents

Process for producing cold-rolled steel sheets with high resistance to embrittlement by cold working and with low flat anisotropy

Info

Publication number
DE69225294D1
DE69225294D1 DE69225294T DE69225294T DE69225294D1 DE 69225294 D1 DE69225294 D1 DE 69225294D1 DE 69225294 T DE69225294 T DE 69225294T DE 69225294 T DE69225294 T DE 69225294T DE 69225294 D1 DE69225294 D1 DE 69225294D1
Authority
DE
Germany
Prior art keywords
cold
embrittlement
high resistance
rolled steel
steel sheets
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.)
Revoked
Application number
DE69225294T
Other languages
German (de)
Other versions
DE69225294T2 (en
Inventor
Eiko Yasuhara
Kei Sakata
Susumu Satoh
Toshiyuki Kato
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=17659611&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69225294(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Application granted granted Critical
Publication of DE69225294D1 publication Critical patent/DE69225294D1/en
Publication of DE69225294T2 publication Critical patent/DE69225294T2/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • C21D8/0421—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 working steps
    • C21D8/0426—Hot rolling
    • 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

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)
  • Heat Treatment Of Steel (AREA)
DE1992625294 1991-10-29 1992-10-28 Process for producing cold-rolled steel sheets with high resistance to embrittlement by cold working and with low flat anisotropy Revoked DE69225294T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3282978A JP2781297B2 (en) 1991-10-29 1991-10-29 Method for producing cold rolled thin steel sheet with excellent secondary work brittleness and low in-plane anisotropy

Publications (2)

Publication Number Publication Date
DE69225294D1 true DE69225294D1 (en) 1998-06-04
DE69225294T2 DE69225294T2 (en) 1998-08-20

Family

ID=17659611

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1992625294 Revoked DE69225294T2 (en) 1991-10-29 1992-10-28 Process for producing cold-rolled steel sheets with high resistance to embrittlement by cold working and with low flat anisotropy

Country Status (5)

Country Link
EP (1) EP0539962B1 (en)
JP (1) JP2781297B2 (en)
KR (1) KR950013192B1 (en)
CA (1) CA2081496C (en)
DE (1) DE69225294T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3783439B2 (en) * 1998-12-25 2006-06-07 Ｊｆｅスチール株式会社 Method for temper rolling of steel sheet
KR100504369B1 (en) * 2000-12-22 2005-07-28 주식회사 포스코 Low carbon cold rolled steel sheets and its manufacturing method having low plastic deformation and anisotropy index
KR100530077B1 (en) * 2001-12-21 2005-11-22 주식회사 포스코 Deep Drawing High Strength Steel Sheet With Secondary Working Brittleness Resistance and Formability and A Method for Manufacturing Thereof
KR100544724B1 (en) * 2001-12-26 2006-01-24 주식회사 포스코 Cold Rolled Steel Sheet with Superior Workability and Method for Manufacturing the Sheet
KR100957999B1 (en) * 2002-12-09 2010-05-17 주식회사 포스코 Method for manufacturing of cold rolled steel sheet having excellent workability
KR100685030B1 (en) * 2005-07-08 2007-02-20 주식회사 포스코 Steel sheet for deep drawing having excellent resistance to secondary work embrittlement, fatigue property and coatability, and method for manufacturing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504326A (en) * 1982-10-08 1985-03-12 Nippon Steel Corporation Method for the production of cold rolled steel sheet having super deep drawability
JPS61276927A (en) * 1985-05-31 1986-12-06 Kawasaki Steel Corp Production of cold rolled steel sheet having good deep drawability
US4889566A (en) * 1987-06-18 1989-12-26 Kawasaki Steel Corporation Method for producing cold rolled steel sheets having improved spot weldability
DE69014532T2 (en) * 1989-08-09 1995-05-04 Kobe Steel Ltd Process for the production of a steel sheet.

Also Published As

Publication number Publication date
KR950013192B1 (en) 1995-10-25
DE69225294T2 (en) 1998-08-20
JP2781297B2 (en) 1998-07-30
CA2081496C (en) 1997-05-13
JPH05117758A (en) 1993-05-14
EP0539962A1 (en) 1993-05-05
CA2081496A1 (en) 1993-04-30
EP0539962B1 (en) 1998-04-29

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation