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 hardenabilityInfo
- 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
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
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)
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 |
-
1979
- 1979-06-28 JP JP8251179A patent/JPS566709A/en active Granted
Cited By (6)
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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