EP0572666A4 - Cold-rolled steel sheet and galvanized cold-rolled steel sheet which are excellent in formability and baking hardenability, and production thereof - Google Patents

Cold-rolled steel sheet and galvanized cold-rolled steel sheet which are excellent in formability and baking hardenability, and production thereof

Info

Publication number: EP0572666A4
Authority: EP; European Patent Office
Prior art keywords: steel sheet; rolled steel; cold; formability; production
Prior art date: 1991-02-20
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.): Granted

Application number

EP19920905304

Other versions

EP0572666B1 (en

EP0572666A1 (en

Inventor

Nobuhiko Matsuzu

Kazuo Koyama

Hirohide Asano

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 Corp

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.)

1991-02-20

Filing date

1992-02-20

Publication date

1994-06-01

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27292333&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0572666(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1992-02-20 Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp

1993-12-08 Publication of EP0572666A1 publication Critical patent/EP0572666A1/en

1994-06-01 Publication of EP0572666A4 publication Critical patent/EP0572666A4/en

1998-05-06 Application granted granted Critical

1998-05-06 Publication of EP0572666B1 publication Critical patent/EP0572666B1/en

2012-02-20 Anticipated expiration legal-status Critical

Status Revoked legal-status Critical Current

Classifications

- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
- 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
- C21D8/0421—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
- C21D8/0436—Cold 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)
Mechanical Engineering (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Heat Treatment Of Sheet Steel (AREA)

EP92905304A 1991-02-20 1992-02-20 Cold-rolled steel sheet and galvanized cold-rolled steel sheet which are excellent in formability and baking hardenability, and production thereof Revoked EP0572666B1 (en)

Applications Claiming Priority (7)

Application Number	Priority Date	Filing Date	Title
JP4566591		1991-02-20
JP45665/91		1991-02-20
JP159831/91		1991-06-05
JP15983191		1991-06-05
JP196039/91		1991-07-11
JP19603991		1991-07-11
PCT/JP1992/000181 WO1992014854A1 (en)	1991-02-20	1992-02-20	Cold-rolled steel sheet and galvanized cold-rolled steel sheet which are excellent in formability and baking hardenability, and production thereof

Publications (3)

Publication Number	Publication Date
EP0572666A1 EP0572666A1 (en)	1993-12-08
EP0572666A4 true EP0572666A4 (en)	1994-06-01
EP0572666B1 EP0572666B1 (en)	1998-05-06

Family

ID=27292333

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP92905304A Revoked EP0572666B1 (en)	1991-02-20	1992-02-20	Cold-rolled steel sheet and galvanized cold-rolled steel sheet which are excellent in formability and baking hardenability, and production thereof

Country Status (4)

Country	Link
EP (1)	EP0572666B1 (en)
DE (1)	DE69225395T2 (en)
ES (1)	ES2114932T3 (en)
WO (1)	WO1992014854A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5556485A (en) *	1994-11-07	1996-09-17	Bethlehem Steel Corporation	Bake hardenable vanadium containing steel and method of making thereof
JP3422612B2 (en) *	1996-01-19	2003-06-30	Ｊｆｅスチール株式会社	Manufacturing method of ultra low carbon cold rolled steel sheet
US5656102A (en) *	1996-02-27	1997-08-12	Bethlehem Steel Corporation	Bake hardenable vanadium containing steel and method thereof
US5853903A (en) *	1996-05-07	1998-12-29	Nkk Corporation	Steel sheet for excellent panel appearance and dent resistance after panel-forming
JP3339615B2 (en) *	1996-07-02	2002-10-28	川崎製鉄株式会社	Manufacturing method of galvannealed steel sheet
TW515847B (en) *	1997-04-09	2003-01-01	Kawasaki Steel Co	Coating/baking curable type cold rolled steel sheet with excellent strain aging resistance and method for producing the same
FR2798871B1 (en) *	1999-09-24	2001-11-02	Usinor	PROCESS FOR PRODUCING CARBON STEEL STRIPS, ESPECIALLY STEEL FOR PACKAGING, AND STRIPS THUS PRODUCED
CN101541993B (en) *	2006-11-21	2012-12-26	新日本制铁株式会社	Steel plate having high gathering degree of {222} plane and process for production thereof
CN103228808B (en) *	2010-11-29	2014-05-28	新日铁住金株式会社	High-strength bake-hardening cold-rolled steel sheet and method for manufacturing same
KR101819358B1 (en) *	2016-08-12	2018-01-17	주식회사 포스코	High-strength thin steel sheet having excellent formability and method for manufacturing the same
CN107201477A (en) *	2016-10-11	2017-09-26	宝钢集团新疆八钢铁有限公司	A kind of cold-rolling production process of the zinc-plated door-plate steel of deep-draw
TWI652355B (en)	2018-01-30	2019-03-01	中國鋼鐵股份有限公司	Hot-dipped galvanized steel and method of forming the same
JP2023512061A (en) *	2020-01-29	2023-03-23	タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップ	Ultra-low carbon interstitial-free steel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0203809A2 (en) *	1985-05-31	1986-12-03	Kawasaki Steel Corporation	A method of manufacturing a cold-rolled steel sheet having a good deep drawability
EP0228756A1 (en) *	1984-07-17	1987-07-15	Kawasaki Steel Corporation	Extra low carbon steel sheets
EP0295697A2 (en) *	1987-06-18	1988-12-21	Kawasaki Steel Corporation	Cold rolled steel sheets having improved spot weldability and method for producing the same
JPH02194126A (en) *	1989-01-20	1990-07-31	Sumitomo Metal Ind Ltd	Manufacture of steel sheet having baking hardenability
EP0484960A2 (en) *	1990-11-09	1992-05-13	Nippon Steel Corporation	Cold-rolled steel strip having excellent combined press formability and method of producing same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS543131B2 (en) *	1972-12-23	1979-02-19
JPS56166331A (en) *	1980-04-25	1981-12-21	Nippon Steel Corp	Manufacture of cold rolled steel plate with superior press workability
JPS59226149A (en) *	1983-06-03	1984-12-19	Nippon Steel Corp	Hot rolled steel sheet with superior formability and its manufacture
JPH01123058A (en) *	1987-11-06	1989-05-16	Kawasaki Steel Corp	Alloying hot dip galvanized steel sheet for superdrawing excellent in resistance to secondary working brittleness and its production

1992
- 1992-02-20 WO PCT/JP1992/000181 patent/WO1992014854A1/en not_active Application Discontinuation
- 1992-02-20 DE DE69225395T patent/DE69225395T2/en not_active Expired - Fee Related
- 1992-02-20 EP EP92905304A patent/EP0572666B1/en not_active Revoked
- 1992-02-20 ES ES92905304T patent/ES2114932T3/en not_active Expired - Lifetime

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0228756A1 (en) *	1984-07-17	1987-07-15	Kawasaki Steel Corporation	Extra low carbon steel sheets
EP0203809A2 (en) *	1985-05-31	1986-12-03	Kawasaki Steel Corporation	A method of manufacturing a cold-rolled steel sheet having a good deep drawability
JPS61276927A (en) *	1985-05-31	1986-12-06	Kawasaki Steel Corp	Production of cold rolled steel sheet having good deep drawability
EP0295697A2 (en) *	1987-06-18	1988-12-21	Kawasaki Steel Corporation	Cold rolled steel sheets having improved spot weldability and method for producing the same
JPH02194126A (en) *	1989-01-20	1990-07-31	Sumitomo Metal Ind Ltd	Manufacture of steel sheet having baking hardenability
GB2234985A (en) *	1989-01-20	1991-02-20	Sumitomo Metal Ind	Production of bake-hardenable steel sheet
EP0484960A2 (en) *	1990-11-09	1992-05-13	Nippon Steel Corporation	Cold-rolled steel strip having excellent combined press formability and method of producing same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9214854A1 *

Also Published As

Publication number	Publication date
DE69225395T2 (en)	1998-09-10
EP0572666B1 (en)	1998-05-06
DE69225395D1 (en)	1998-06-10
WO1992014854A1 (en)	1992-09-03
EP0572666A1 (en)	1993-12-08
ES2114932T3 (en)	1998-06-16

Publication	Publication Date	Title
GB2351740B (en)	2001-06-27	Hot-dip galvanized steel sheet and production thereof
EP0767247A4 (en)	1999-11-24	Cold-rolled steel sheet and hot-dipped galvanized steel sheet excellent in uniform workability, and process for producing the sheets
EP0997548A4 (en)	2001-06-13	High strength hot rolled steel sheet excellent in formability
EP0586704A4 (en)	1995-10-18	High-yield-ratio hot-rolled high-strength steel sheet excellent in formability or in both of formability and spot weldability, and production thereof
EP1146132A4 (en)	2002-06-05	Hot-dip galvanized steel sheet having high strength and also being excellent in formability and galvanizing property
EP0769565A4 (en)	1999-01-20	Ultralow-carbon cold-rolled sheet and galvanized sheet both excellent in fatigue characteristics and process for producing both
EP0905270A4 (en)	2001-10-24	HOT-DIP Zn-Al-Mg COATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND SURFACE APPEARANCE AND PROCESS FOR THE PRODUCTION THEREOF
DE69317470D1 (en)	1998-04-23	High-strength, cold-rolled steel sheet with excellent deep-drawing properties and process for its production
EP0572666A4 (en)	1994-06-01	Cold-rolled steel sheet and galvanized cold-rolled steel sheet which are excellent in formability and baking hardenability, and production thereof
EP0733715A3 (en)	1997-07-02	Hot-rolled steel sheet and method for forming hot-rolled steel sheet having low yield ratio, high strength and excellent toughness
GB8915954D0 (en)	1989-08-31	Scratch and corrosion resistant,formable nickle plated steel sheet and its manufacture
EP0789090A4 (en)	1998-08-26	Hot-rolled steel sheet and process for producing the same
DE3164521D1 (en)	1984-08-09	High-tensile, cold-rolled steel plate with excellent formability and process for its production, as well as high-tensile, galvanized steel plate with excellent formability, and process for its production
DE69104747D1 (en)	1994-12-01	Cold-rolled steel sheets or cold-rolled and hot-dip galvanized steel sheets for deep drawing.
VN330A1 (en)	1997-04-25	Thin steel sheet having excellent stretch-flange ability and process for producing the same
DE69618263D1 (en)	2002-02-07	Cold rolled steel sheet with excellent press formability and manufacturing process
DE69216503D1 (en)	1997-02-20	Cold-rolled high-strength steel sheet with excellent deep-drawing ability
DE69205543D1 (en)	1995-11-23	Hot-dip galvanized steel sheet with excellent slip formability.
EP1028172A4 (en)	2003-03-05	Cold rolled steel sheet excellent in baking hardenability
DE69329696D1 (en)	2000-12-28	Cold-rolled steel sheet, hot-dip galvanized if necessary, with good bake hardenability, good cold aging resistance and formability and method for producing these sheets
DE69230447D1 (en)	2000-01-20	HIGH-STRENGTH, COLD-ROLLED STEEL PLATE WITH EXCELLENT FORMABILITY, HOT-DIP GALVANIZED, COLD-ROLLED STEEL SHEET AND METHOD FOR PRODUCING THIS SHEET
EP0446677A3 (en)	1992-09-02	Surface-treated steel sheet having improved weldability and plating properties, and method for producing the same
EP0727502A4 (en)	1996-12-27	Chromium steel sheet excellent in press formability
GB9512305D0 (en)	1995-09-06	Cold-rolled steel sheet having excellent workability and process for producing the same
ZA92202B (en)	1992-10-28	Nickel electroplated cold-rolled steel sheet excellent in press-formability and phosphating-treatability and method for manufacturing same

Legal Events

Date	Code	Title	Description
1993-10-22	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1993-12-08	17P	Request for examination filed	Effective date: 19930915
1993-12-08	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): DE ES FR GB IT
1994-06-01	A4	Supplementary search report drawn up and despatched
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1996-05-01	17Q	First examination report despatched	Effective date: 19960320
1996-10-31	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-06-18	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-06-18	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
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1999-04-07	26	Opposition filed	Opponent name: THYSSEN KRUPP STAHL AG Effective date: 19990208
1999-09-21	RDAH	Patent revoked	Free format text: ORIGINAL CODE: EPIDOS REVO
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2000-03-08	27W	Patent revoked	Effective date: 19991004
2000-03-08	GBPR	Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state	Free format text: 991004