JPH0557330B2 - - Google Patents
Info
- Publication number
- JPH0557330B2 JPH0557330B2 JP15297987A JP15297987A JPH0557330B2 JP H0557330 B2 JPH0557330 B2 JP H0557330B2 JP 15297987 A JP15297987 A JP 15297987A JP 15297987 A JP15297987 A JP 15297987A JP H0557330 B2 JPH0557330 B2 JP H0557330B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- low carbon
- ultra
- spot
- range
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 69
- 239000010959 steel Substances 0.000 claims description 69
- 229910052796 boron Inorganic materials 0.000 claims description 43
- 238000005096 rolling process Methods 0.000 claims description 37
- 230000009467 reduction Effects 0.000 claims description 24
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000010960 cold rolled steel Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 238000001953 recrystallisation Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 45
- 230000000694 effects Effects 0.000 description 44
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 41
- 239000000463 material Substances 0.000 description 20
- 238000004804 winding Methods 0.000 description 10
- 230000006866 deterioration Effects 0.000 description 8
- 230000003993 interaction Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 238000000137 annealing Methods 0.000 description 4
- 239000010953 base metal Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000002436 steel type Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000655 Killed steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62152979A JPS63317625A (ja) | 1987-06-19 | 1987-06-19 | スポット溶接部の疲労特性に優れた極低炭素冷延鋼板の製造方法 |
| US07/204,619 US4889566A (en) | 1987-06-18 | 1988-06-09 | Method for producing cold rolled steel sheets having improved spot weldability |
| CA000569634A CA1339525C (en) | 1987-06-18 | 1988-06-16 | Cold rolled steel sheets having improved spot weldability and method forproducing the same |
| EP88109682A EP0295697B1 (en) | 1987-06-18 | 1988-06-16 | Cold rolled steel sheets having improved spot weldability and method for producing the same |
| DE3851374T DE3851374T2 (de) | 1987-06-18 | 1988-06-16 | Kaltgewalzte Stahlbleche mit verbesserter Punktschweissfähigkeit und Verfahren zu ihrer Herstellung. |
| AU17752/88A AU591843B2 (en) | 1987-06-18 | 1988-06-16 | Cold rolled steel sheets having improved spot weldability and method for producing the same |
| KR1019880007420A KR960010819B1 (ko) | 1987-06-18 | 1988-06-17 | 점용접성이 개선된 냉간압연된 강판 및 그 제조방법 |
| US07/410,414 US5089068A (en) | 1987-06-18 | 1989-09-21 | Cold rolled steel sheets having improved spot weldability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62152979A JPS63317625A (ja) | 1987-06-19 | 1987-06-19 | スポット溶接部の疲労特性に優れた極低炭素冷延鋼板の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63317625A JPS63317625A (ja) | 1988-12-26 |
| JPH0557330B2 true JPH0557330B2 (enrdf_load_stackoverflow) | 1993-08-23 |
Family
ID=15552310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62152979A Granted JPS63317625A (ja) | 1987-06-18 | 1987-06-19 | スポット溶接部の疲労特性に優れた極低炭素冷延鋼板の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63317625A (enrdf_load_stackoverflow) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01225748A (ja) * | 1988-03-04 | 1989-09-08 | Sumitomo Metal Ind Ltd | 耐疲労性の優れた冷延鋼板とその製造法 |
| US5053194A (en) * | 1988-12-19 | 1991-10-01 | Kawasaki Steel Corporation | Formable thin steel sheets |
| US5531839A (en) * | 1993-10-05 | 1996-07-02 | Nkk Corporation | Continously annealed cold-rolled steel sheet excellent in balance between deep drawability and resistance to secondary-work embrittlement and method for manufacturing same |
| EP0769565A4 (en) * | 1995-03-27 | 1999-01-20 | Nippon Steel Corp | COLD ROLLED SHEET WITH EXTREMELY LOW CARBON CONTENT AND GALVANIZED SHEET, BOTH WITH EXCELLENT FASTENING PROPERTIES AND METHOD FOR THE PRODUCTION THEREOF |
| KR20020046663A (ko) * | 2000-12-15 | 2002-06-21 | 이구택 | 가공성이 우수한 관용강판의 제조방법 |
| CN103131843B (zh) * | 2013-01-02 | 2014-05-28 | 河北钢铁股份有限公司邯郸分公司 | 汽车结构件用低合金高强钢冷轧板的稳定化连续退火工艺 |
-
1987
- 1987-06-19 JP JP62152979A patent/JPS63317625A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63317625A (ja) | 1988-12-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |