JP4472015B2 - 延性に優れた高強度低比重鋼板およびその製造方法 - Google Patents
延性に優れた高強度低比重鋼板およびその製造方法 Download PDFInfo
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- JP4472015B2 JP4472015B2 JP2009026773A JP2009026773A JP4472015B2 JP 4472015 B2 JP4472015 B2 JP 4472015B2 JP 2009026773 A JP2009026773 A JP 2009026773A JP 2009026773 A JP2009026773 A JP 2009026773A JP 4472015 B2 JP4472015 B2 JP 4472015B2
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- 229910000831 Steel Inorganic materials 0.000 title claims description 55
- 239000010959 steel Substances 0.000 title claims description 55
- 230000005484 gravity Effects 0.000 title claims description 41
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 238000005096 rolling process Methods 0.000 claims description 22
- 238000000137 annealing Methods 0.000 claims description 14
- 238000005098 hot rolling Methods 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 17
- 239000013078 crystal Substances 0.000 description 11
- 229910052761 rare earth metal Inorganic materials 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 238000005097 cold rolling Methods 0.000 description 7
- 238000001953 recrystallisation Methods 0.000 description 7
- 229910052726 zirconium Inorganic materials 0.000 description 7
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- -1 carbon nitrides Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
Description
Claims (5)
- 質量%で、
C:0.001〜0.01%、
Si:3.0%以下、
Mn:3.0超〜30.0%、
P :0.02%以下、
S :0.01%以下、
Al:5.0〜10.0%、
N:0.001〜0.05%
を含有し、残部がFeおよび不可避的不純物からなり、かつ、比重<7.2であり、引張強度が440MPa以上であり、伸びが25%以上であることを特徴とする延性に優れた高強度低比重鋼板。 - さらに、質量%で、Ni:5.0超〜15.0%を含有することを特徴とする請求項1記載の延性に優れた高強度低比重鋼板。
- 請求項1または2に記載の延性に優れた高強度鋼低比重板を製造する方法であって、請求項1または2に記載の成分からなる鋼スラブを1050℃以上1150℃以下の温度に加熱し、1000℃以上1100℃以下の温度で圧下率25%以上の大圧下を少なくとも1パス以上含み1000℃以下での総圧下率を70%以上としかつ800℃以上850℃以下の仕上げ圧延温度で熱間圧延し、600℃以上750℃以下の温度で巻き取ることを特徴とする延性に優れた高強度低比重鋼板の製造方法。
- 鋼板を巻き取った後、700℃以上1100℃以下の温度で焼鈍することを特徴とする請求項3に記載の延性に優れた高強度低比重鋼板の製造方法。
- 鋼板を巻き取った後、酸洗し、1パス目の圧下率を15%以下とする冷間圧延を30℃以上で行い、600℃以上1100℃以下の温度で焼鈍を行い、焼鈍後、20℃/秒以上の冷却速度で200℃以下の温度まで冷却することを特徴とする請求項3に記載の延性に優れた高強度低比重鋼板の製造方法。
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JP2009026773A JP4472015B2 (ja) | 2003-06-18 | 2009-02-06 | 延性に優れた高強度低比重鋼板およびその製造方法 |
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JP2003173251 | 2003-06-18 | ||
JP2009026773A JP4472015B2 (ja) | 2003-06-18 | 2009-02-06 | 延性に優れた高強度低比重鋼板およびその製造方法 |
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JP2004074914A Division JP4471688B2 (ja) | 2003-06-18 | 2004-03-16 | 延性に優れた高強度低比重鋼板およびその製造方法 |
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JP2009120962A JP2009120962A (ja) | 2009-06-04 |
JP4472015B2 true JP4472015B2 (ja) | 2010-06-02 |
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JP2009026773A Expired - Lifetime JP4472015B2 (ja) | 2003-06-18 | 2009-02-06 | 延性に優れた高強度低比重鋼板およびその製造方法 |
JP2010003244A Expired - Fee Related JP5094888B2 (ja) | 2003-06-18 | 2010-01-08 | 延性に優れた高強度低比重鋼板の製造方法 |
JP2010003233A Expired - Fee Related JP5094887B2 (ja) | 2003-06-18 | 2010-01-08 | 延性に優れた高強度低比重鋼板の製造方法 |
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JP2010003244A Expired - Fee Related JP5094888B2 (ja) | 2003-06-18 | 2010-01-08 | 延性に優れた高強度低比重鋼板の製造方法 |
JP2010003233A Expired - Fee Related JP5094887B2 (ja) | 2003-06-18 | 2010-01-08 | 延性に優れた高強度低比重鋼板の製造方法 |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5003785B2 (ja) * | 2010-03-30 | 2012-08-15 | Jfeスチール株式会社 | 延性に優れた高張力鋼板およびその製造方法 |
EP2767601B1 (de) * | 2013-02-14 | 2018-10-10 | ThyssenKrupp Steel Europe AG | Kaltgewalztes Stahlflachprodukt für Tiefziehanwendungen und Verfahren zu seiner Herstellung |
EP2767602B1 (de) * | 2013-02-14 | 2019-04-17 | ThyssenKrupp Steel Europe AG | Kaltgewalztes Stahlflachprodukt für Tiefziehanwendungen und Verfahren zu seiner Herstellung |
KR101889110B1 (ko) * | 2013-10-23 | 2018-08-16 | 주식회사 포스코 | 극저탄소 고강도 저비중 냉연강판 및 이의 제조방법 |
JP6858056B2 (ja) | 2017-03-30 | 2021-04-14 | 日鉄ステンレス株式会社 | 低比重フェライト系ステンレス鋼板およびその製造方法 |
CN107217204B (zh) * | 2017-05-02 | 2018-09-28 | 昆明理工大学 | 一种Fe-Mn-Al系合金的制备方法 |
CN113046644B (zh) * | 2021-03-15 | 2022-07-22 | 鞍钢股份有限公司 | 一种980MPa级轻质高强钢及其制备方法 |
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JP3386514B2 (ja) * | 1993-06-16 | 2003-03-17 | 川崎製鉄株式会社 | 制振合金薄鋼板及びその製造方法 |
JP2001271148A (ja) * | 2000-03-27 | 2001-10-02 | Nisshin Steel Co Ltd | 耐高温酸化性に優れた高Al鋼板 |
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- 2009-02-06 JP JP2009026773A patent/JP4472015B2/ja not_active Expired - Lifetime
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- 2010-01-08 JP JP2010003244A patent/JP5094888B2/ja not_active Expired - Fee Related
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Publication number | Publication date |
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JP5094888B2 (ja) | 2012-12-12 |
JP5094887B2 (ja) | 2012-12-12 |
JP2009120962A (ja) | 2009-06-04 |
JP2010133028A (ja) | 2010-06-17 |
JP2010121213A (ja) | 2010-06-03 |
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