JPS566709A - Manufacture of cold rolled steel sheet possessing excellent press formability and baking hardenability - Google Patents

Manufacture of cold rolled steel sheet possessing excellent press formability and baking hardenability

Info

Publication number
JPS566709A
JPS566709A JP8251179A JP8251179A JPS566709A JP S566709 A JPS566709 A JP S566709A JP 8251179 A JP8251179 A JP 8251179A JP 8251179 A JP8251179 A JP 8251179A JP S566709 A JPS566709 A JP S566709A
Authority
JP
Japan
Prior art keywords
cold rolled
steel sheet
rolled steel
manufacture
press formability
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.)
Granted
Application number
JP8251179A
Other languages
Japanese (ja)
Other versions
JPS6110012B2 (en
Inventor
Masashi Takahashi
Atsuki Okamoto
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP8251179A priority Critical patent/JPS566709A/en
Priority to US06/159,346 priority patent/US4313770A/en
Priority to GB8020572A priority patent/GB2057009B/en
Priority to DE19803024303 priority patent/DE3024303A1/en
Priority to FR8014442A priority patent/FR2461011B1/fr
Priority to IT68004/80A priority patent/IT1128820B/en
Publication of JPS566709A publication Critical patent/JPS566709A/en
Publication of JPS6110012B2 publication Critical patent/JPS6110012B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE: To manufacture the cold rolled steel sheet possessing excellent press formability and baking hardenability, by hot rolling and cold rolling the steel of the specified composition, and next, by carrying out the heat treatment of the specified box annealing, and then, by carrying out the temper rolling.
CONSTITUTION: The steel is specified to comprise 0.015W0.15% C, 0.2% or less Si, 0.03W0.25% Mn, 0.03W0.2% P, 0.02W0.35% Sol.Al, 0.002W0.15% N, and the balance Fe; this steel is cold rolled after the hot rolling, and the cold rolled steel sheet is prepared. This cold rolled steel sheet is treated by the box annealing furnace for the recrystallization annealing at 720W760°C as the highest heating temperatures; after that, the cooling process is carried out at 25W250°C/h average cooling rate within 500W200°C temperature region. Next, this cold rolled steel sheet is subjected to the temper rolling process.
COPYRIGHT: (C)1981,JPO&Japio
JP8251179A 1979-06-28 1979-06-28 Manufacture of cold rolled steel sheet possessing excellent press formability and baking hardenability Granted JPS566709A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP8251179A JPS566709A (en) 1979-06-28 1979-06-28 Manufacture of cold rolled steel sheet possessing excellent press formability and baking hardenability
US06/159,346 US4313770A (en) 1979-06-28 1980-06-13 Method of producing cold rolled steel strip having improved press formability and bake-hardenability
GB8020572A GB2057009B (en) 1979-06-28 1980-06-24 Producing cold rolled steel strip having press formability and bake-hardenability
DE19803024303 DE3024303A1 (en) 1979-06-28 1980-06-27 METHOD FOR PRODUCING COLD ROLLED TAPE STEEL
FR8014442A FR2461011B1 (en) 1979-06-28 1980-06-27
IT68004/80A IT1128820B (en) 1979-06-28 1980-06-27 METHOD FOR THE PRODUCTION OF A COLD ROLLED STEEL TAPE THAT PRESENTS AN IMPROVED PRESS FORMABILITY AND COOKING HARDENABILITY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8251179A JPS566709A (en) 1979-06-28 1979-06-28 Manufacture of cold rolled steel sheet possessing excellent press formability and baking hardenability

Publications (2)

Publication Number Publication Date
JPS566709A true JPS566709A (en) 1981-01-23
JPS6110012B2 JPS6110012B2 (en) 1986-03-27

Family

ID=13776539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8251179A Granted JPS566709A (en) 1979-06-28 1979-06-28 Manufacture of cold rolled steel sheet possessing excellent press formability and baking hardenability

Country Status (1)

Country Link
JP (1) JPS566709A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5651527A (en) * 1979-10-02 1981-05-09 Kobe Steel Ltd Production of al killed base cold rolled high tensile steel plate
JPS5852432A (en) * 1981-09-19 1983-03-28 Sumitomo Metal Ind Ltd Production of thermally hardenable thin steel sheet
JPS60162732A (en) * 1984-02-06 1985-08-24 Nisshin Steel Co Ltd Production of high-strength cold rolled steel sheet having baking hardenability and press formability
JPS61117225A (en) * 1985-10-31 1986-06-04 Nippon Kokan Kk <Nkk> Manufacture of high strength cold rolled steel sheet superior in press formability and baking hardenability
KR100759197B1 (en) 2006-06-30 2007-09-14 현대하이스코 주식회사 Baf heat treating method for ultra deep drawing cold rolled steel sheet
US7749343B2 (en) * 2001-08-24 2010-07-06 Nippon Steel Corporation Method to produce steel sheet excellent in workability

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5651527A (en) * 1979-10-02 1981-05-09 Kobe Steel Ltd Production of al killed base cold rolled high tensile steel plate
JPS5852432A (en) * 1981-09-19 1983-03-28 Sumitomo Metal Ind Ltd Production of thermally hardenable thin steel sheet
JPS60162732A (en) * 1984-02-06 1985-08-24 Nisshin Steel Co Ltd Production of high-strength cold rolled steel sheet having baking hardenability and press formability
JPS61117225A (en) * 1985-10-31 1986-06-04 Nippon Kokan Kk <Nkk> Manufacture of high strength cold rolled steel sheet superior in press formability and baking hardenability
US7749343B2 (en) * 2001-08-24 2010-07-06 Nippon Steel Corporation Method to produce steel sheet excellent in workability
KR100759197B1 (en) 2006-06-30 2007-09-14 현대하이스코 주식회사 Baf heat treating method for ultra deep drawing cold rolled steel sheet

Also Published As

Publication number Publication date
JPS6110012B2 (en) 1986-03-27

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