JP3865477B2 - 強度・延性バランスにすぐれた高張力冷延鋼板の製造方法 - Google Patents
強度・延性バランスにすぐれた高張力冷延鋼板の製造方法 Download PDFInfo
- Publication number
- JP3865477B2 JP3865477B2 JP22778697A JP22778697A JP3865477B2 JP 3865477 B2 JP3865477 B2 JP 3865477B2 JP 22778697 A JP22778697 A JP 22778697A JP 22778697 A JP22778697 A JP 22778697A JP 3865477 B2 JP3865477 B2 JP 3865477B2
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- strength
- rolled steel
- cold
- temperature
- 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 - Lifetime
Links
- 239000010960 cold rolled steel Substances 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 90
- 239000010959 steel Substances 0.000 claims description 90
- 238000000137 annealing Methods 0.000 claims description 50
- 229910001566 austenite Inorganic materials 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 25
- 229910000859 α-Fe Inorganic materials 0.000 claims description 19
- 238000005097 cold rolling Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 13
- 238000005098 hot rolling Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 8
- 229910001562 pearlite Inorganic materials 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 description 31
- 238000007747 plating Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 17
- 239000006104 solid solution Substances 0.000 description 16
- 230000009466 transformation Effects 0.000 description 15
- 239000000463 material Substances 0.000 description 14
- 230000007423 decrease Effects 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 238000001556 precipitation Methods 0.000 description 12
- 238000005275 alloying Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 229910000734 martensite Inorganic materials 0.000 description 6
- 238000001953 recrystallisation Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 229910006639 Si—Mn Inorganic materials 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000005246 galvanizing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 229910001563 bainite Inorganic materials 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22778697A JP3865477B2 (ja) | 1997-08-25 | 1997-08-25 | 強度・延性バランスにすぐれた高張力冷延鋼板の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22778697A JP3865477B2 (ja) | 1997-08-25 | 1997-08-25 | 強度・延性バランスにすぐれた高張力冷延鋼板の製造方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH1161269A JPH1161269A (ja) | 1999-03-05 |
| JPH1161269A5 JPH1161269A5 (https=) | 2005-04-14 |
| JP3865477B2 true JP3865477B2 (ja) | 2007-01-10 |
Family
ID=16866369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22778697A Expired - Lifetime JP3865477B2 (ja) | 1997-08-25 | 1997-08-25 | 強度・延性バランスにすぐれた高張力冷延鋼板の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3865477B2 (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5803682B2 (ja) * | 2011-01-26 | 2015-11-04 | Ｊｆｅスチール株式会社 | 冷延鋼板の製造方法 |
-
1997
- 1997-08-25 JP JP22778697A patent/JP3865477B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1161269A (ja) | 1999-03-05 |
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