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1. 发明授权

US06689229B2 High strength cold rolled steel sheet and method for manufacturing the same 有权
标题翻译：高强度冷轧钢板及其制造方法
公开(公告)号：US06689229B2
公开(公告)日：2004-02-10
申请号：US10122860
申请日：2002-04-15
申请人： Takeshi Fujita , Fusato Kitano , Yoshihiro Hosoya , Toru Inazumi , Yuji Yamasaki , Masaya Morita , Yasunobu Nagataki , Kohei Hasegawa , Hiroshi Matsuda , Moriaki Ono
发明人： Takeshi Fujita , Fusato Kitano , Yoshihiro Hosoya , Toru Inazumi , Yuji Yamasaki , Masaya Morita , Yasunobu Nagataki , Kohei Hasegawa , Hiroshi Matsuda , Moriaki Ono
IPC分类号： C21D802
CPC分类号： C22C38/12 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06
摘要： A high strength cold rolled steel sheet consists essentially of 0.0040 to 0.01% C, not more than 0.05% Si, 0.1 to 1.0% Mn, 0.01 to 0.05% P, not more than 0.02% S, 0.01 to 0.1% sol.Al, not more than 0.004% N, 0.01 to 0.14% Nb, by weight, and a balance of substantially Fe and inevitable impurities, and having an n value of not less than 0.21 calculated from two points (1% and 10%) of nominal strain determined by the uniaxial tensile test, and a method for manufacturing the cold rolled steel sheet. The high strength cold rolled steel sheet has excellent combined formability, resistance to embrittlement during secondary operation, formability at welded portions, and anti-burring performance, and has a desirable surface appearance and uniformity of material in a coil, and thus can be desirably used for automobile exterior panels.
摘要翻译：高强度冷轧钢板主要由0.0040〜0.01％的C，不大于0.05％的Si，0.1〜1.0％的Mn，0.01〜0.05％的P，不大于0.02％的S，0.01〜0.1％的溶胶，Al，不超过0.004％的N，0.01〜0.14％的Nb，以及余量基本上为Fe和不可避免的杂质，并且由标称应变的两个点（1％和10％）计算出的n值不小于0.21 通过单轴拉伸试验确定，以及冷轧钢板的制造方法。高强度冷轧钢板具有优异的组合成形性，二次加工中的脆性耐受性，焊接部的成形性和抗起毛性，并且具有优选的线圈材料的表面外观和均匀性，因此可以理想地使用用于汽车外部面板。

2. 发明授权

US06494969B1 High strength cold rolled steel sheet and method for manufacturing the same 有权
公开(公告)号：US06494969B1
公开(公告)日：2002-12-17
申请号：US09631600
申请日：2000-08-03
申请人： Takeshi Fujita , Fusato Kitano , Yoshihiro Hosoya , Toru Inazumi , Yuji Yamasaki , Masaya Morita , Yasunobu Nagataki , Kohei Hasegawa , Hiroshi Matsuda , Moriaki Ono
发明人： Takeshi Fujita , Fusato Kitano , Yoshihiro Hosoya , Toru Inazumi , Yuji Yamasaki , Masaya Morita , Yasunobu Nagataki , Kohei Hasegawa , Hiroshi Matsuda , Moriaki Ono
IPC分类号： C22C3840
CPC分类号： C22C38/12 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06
摘要： The present invention relates to a very low C—Nb cold rolled steel sheet giving 340 to 440 MPa of tensile strength. For example, the cold rolled steel sheet consists essentially of 0.0040 to 0.01% C, not more than 0.05% Si, 0.1 to 1.0% Mn, 0.01 to 0.05% P, not more than 0.02% S, 0.01 to 0.1% sol.Al, not more than 0.004% N, 0.01 to 0.14% Nb, by weight, and balance of substantially Fe and inevitable impurities, and has not less than 0.21 of n value calculated from two points (1% and 10%) of nominal strain determined by the uniaxial tensile test, and relates to a method for manufacturing the cold rolled steel sheet. The present invention provides a high strength cold rolled steel sheet for automobile exterior panels having excellent combined formability, resistance to embrittlement during secondary operation, formability at welded portions, anti-burring performance, good surface appearance, and uniformity of material in a coil.

3. 发明申请

US20090214892A1 HIGH STRENGTH STEEL SHEET HAVING SUPERIOR DUCTILITY AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：具有超高强度的高强度钢板及其制造方法
公开(公告)号：US20090214892A1
公开(公告)日：2009-08-27
申请号：US12372836
申请日：2009-02-18
申请人： Kenji Kawamura , Taro Kizu , Shusaku Takagi , Kohei Hasegawa , Hiroshi Matsuda , Akio Kobayashi , Yasunobu Nagataki , Yasuhi Tanaka , Thomas Heller , Brigitte Hammer , Jian Bian , Gunter Stich , Rolf Bode
发明人： Kenji Kawamura , Taro Kizu , Shusaku Takagi , Kohei Hasegawa , Hiroshi Matsuda , Akio Kobayashi , Yasunobu Nagataki , Yasuhi Tanaka , Thomas Heller , Brigitte Hammer , Jian Bian , Gunter Stich , Rolf Bode
IPC分类号： B32B15/01 , C22C38/06 , C21D8/02
CPC分类号： C21D9/48 , C21D8/0426 , C21D8/0473 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/28 , Y10T428/12799 , Y10T428/12972
摘要： A high strength steel sheet and a method for manufacturing the same has superior phosphatability properties and hot-dip galvannealed properties besides a tensile strength of 950 MPa or more and a high ductility, and also having a small variation in mechanical properties with the change in annealing conditions.
摘要翻译：高强度钢板及其制造方法除950MPa以上的拉伸强度和高延展性外，还具有优异的磷酸化性和热浸镀锌合金的特性，并且随着退火的变化也具有小的机械性能变化条件。

4. 发明授权

US07919194B2 High strength steel sheet having superior ductility 有权
标题翻译：高强度钢板具有优良的延展性
公开(公告)号：US07919194B2
公开(公告)日：2011-04-05
申请号：US12372836
申请日：2009-02-18
申请人： Kenji Kawamura , Taro Kizu , Shusaku Takagi , Kohei Hasegawa , Hiroshi Matsuda , Akio Kobayashi , Yasunobu Nagataki , Yasushi Tanaka , Thomas Heller , Brigitte Hammer , Jian Bian , Günter Stich , Rolf Bode , Brigitte Bode, legal representative
发明人： Kenji Kawamura , Taro Kizu , Shusaku Takagi , Kohei Hasegawa , Hiroshi Matsuda , Akio Kobayashi , Yasunobu Nagataki , Yasushi Tanaka , Thomas Heller , Brigitte Hammer , Jian Bian , Günter Stich , Rolf Bode
IPC分类号： B32B15/04 , B32B15/18 , B32B15/20 , C22C38/18
CPC分类号： C21D9/48 , C21D8/0426 , C21D8/0473 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/28 , Y10T428/12799 , Y10T428/12972
摘要： A high strength steel sheet and a method for manufacturing the same has superior phosphatability properties and hot-dip galvannealed properties besides a tensile strength of 950 MPa or more and a high ductility, and also having a small variation in mechanical properties with the change in annealing conditions.
摘要翻译：高强度钢板及其制造方法除950MPa以上的拉伸强度和高延展性外，还具有优异的磷酸化性和热浸镀锌合金的特性，并且随着退火的变化也具有小的机械性能变化条件。

5. 发明授权

US5441582A Method of manufacturing natural aging-retardated aluminum alloy sheet exhibiting excellent formability and excellent bake hardenability 失效
标题翻译：具有优异的成形性和优异的烘烤淬透性的天然老化延迟铝合金板的制造方法
公开(公告)号：US5441582A
公开(公告)日：1995-08-15
申请号：US188155
申请日：1994-01-27
申请人： Takeshi Fujita , Shinji Mitao , Kohei Hasegawa , Masataka Suga
发明人： Takeshi Fujita , Shinji Mitao , Kohei Hasegawa , Masataka Suga
IPC分类号： C22C21/06 , C22F1/047 , C22C21/08
CPC分类号： C22C21/06 , C22F1/047
摘要： Disclosed is a method manufacturing an aluminum alloy sheet comprising preparing an aluminum alloy ingot essentially consisting of 1.5 to 3.5% by weight of Mg, 0.3% to 1.0% by weight of Cu, 0.05 to 0.35% by weight of Si, 0.03 to 0.5% by weight of Fe, 0.005 to 0.15% by weight of Ti, 0.0002 to 0.05% by weight of B and a balance of Al, in which the ratio of Mg/Cu is in the range of 2 to 7, homogenizing the ingot in one step or in multiple steps, performed at a temperature within the range of 400.degree. to 580.degree. C., preparing an alloy sheet having a desired sheet thickness by subjecting the ingot to a hot rolling and a cold rolling, subjecting the alloy sheet to a heat treatment including heating the sheet up to a range of 500.degree. to 580.degree. C. at a heating rate of 3.degree. C./second or more, keeping it at the temperature reached for 0 to 60 seconds, and cooling at a cooling rate of 2.degree. C./second or more, subjecting the alloy sheet to a preliminary aging treatment performed at a temperature within the range of 45.degree. to 100.degree. C. for 2 to 48 hours after keeping at room temperature or immediately after the heat treatment, and subjecting the alloy sheet to a restoring treatment performed at a temperature within the range of 180.degree. to 300.degree. C. for 3 to 60 seconds. Thus, a natural aging-retardated aluminum alloy sheet exhibiting excellent formability and excellent bake hardenability is obtained.
摘要翻译：公开了一种制造铝合金板的方法，其包括制备基本上由1.5至3.5重量％的Mg，0.3重量％至1.0重量％的Cu，0.05至0.35重量％的Si，0.03至0.5重量％的Fe，0.005〜0.15重量％的Ti，0.0002〜0.05重量％的B，余量为Al，其中Mg / Cu的比例在2〜7的范围内，将锭均质化为1 在400〜580℃的温度范围内进行工序或多步骤，通过对锭进行热轧和冷轧，制备具有所需片材厚度的合金板，对合金板进行热处理，包括以3℃/秒以上的加热速度将片材加热至500〜580℃的范围，将其保持在0〜60秒的温度下，以冷却速度在2℃/秒以上的温度下进行预熟化处理在室温或立即热处理后保持2〜48小时，在45〜100℃的范围内进行2〜48小时，在180〜300℃的温度范围内进行恢复处理 C. 3至60秒。因此，获得了优异的成形性和优异的烘烤淬透性的自然老化延迟铝合金板。

6. 发明授权

US5580402A Low baking temperature hardenable aluminum alloy sheet for press-forming 失效
标题翻译：低烘烤温度可淬火的铝合金板用于压制成型
公开(公告)号：US5580402A
公开(公告)日：1996-12-03
申请号：US156034
申请日：1993-11-19
申请人： Takeshi Fujita , Masakazu Niikura , Shinji Mitao , Masataka Suga , Kohei Hasegawa
发明人： Takeshi Fujita , Masakazu Niikura , Shinji Mitao , Masataka Suga , Kohei Hasegawa
IPC分类号： C22C21/06 , C22F1/04 , C22F1/047 , C22C21/08
CPC分类号： C22F1/04 , C22C21/06 , C22F1/047
摘要： Disclosed is an aluminum alloy sheet having a chemical composition of an Si-containing Al--Mg--CU alloy. The aluminum alloy sheet exhibits a streak-shaped modulated structure at a diffraction grating points of an Al--Cu--Mg--system compound in the electron beam diffraction grating image. The above mentioned streak can be generated efficiently when the alloy essentially consists of 1.5 to 3.5% by weight of Mg, 0.3 to 1.0% by weight of Cu, 0.05 to 0.6% by weight of Si, and the balance of Al and inevitable impurities, and the ratio of Mg/Cu is in the range of 2 to 7. The alloy contains 0.01-0.50% of at least one element selected from the group consisting of Sn, Cd, and In.
摘要翻译：公开了具有含Si的Al-Mg-Cu合金的化学组成的铝合金板。铝合金板在电子束衍射光栅图像中的Al-Cu-Mg系化合物的衍射光栅点处呈现条纹状的调制结构。当合金基本上由Mg，0.3〜1.0重量％的Cu，0.05〜0.6重量％的Si，余量的Al和不可避免的杂质组成时，能够有效地产生上述条纹，并且Mg / Cu的比例在2〜7的范围内。该合金含有0.01-0.50％的选自Sn，Cd和In中的至少一种元素。

7. 发明申请

US20050121119A1 Steel plate subjected to heat treatment and process for producing the same 审中-公开
标题翻译：进行热处理的钢板及其制造方法
公开(公告)号：US20050121119A1
公开(公告)日：2005-06-09
申请号：US10505575
申请日：2003-02-28
申请人： Kohei Hasegawa , Takeshi Fujita , Toshiaki Urabe
发明人： Kohei Hasegawa , Takeshi Fujita , Toshiaki Urabe
IPC分类号： C21D9/46 , C21D8/02 , C21D8/04 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/38
CPC分类号： C22C38/06 , C21D9/46 , C22C38/04 , C22C38/14
摘要： The present invention provides a steel sheet for heat treatment consisting essentially of, by mass %, 0.05-0.09% C, below 1% Si, 1.6-2.4% Mn, 0.02% P or less, 0.02% S or less, 0.01-0.1% sol. Al, 0.005% N or less, 0.0003-0.003% B, Ti in a range satisfying (48/32)S+(48/14)N≦Ti≦2[(48/32)S+(48/14)N], and the rest of Fe, wherein the average diameter of iron carbides precipitating in steel is 2 μm or smaller. The steel sheet for heat treatment according to the present invention has high strength and excellent hydrogen embrittlement resistance after being press formed and quenched, so that the steel sheet is well suited for automobile construction members.
摘要翻译：本发明提供一种热处理钢板，其基本上以质量％计含有0.05％-0.09％的C，低于1％的Si，1.6-2.4％的Mn，0.02％的P以下，0.02％以下的锡，0.01-0.1 ％溶胶 Al，0.005％N以下，0.0003〜0.003％B，满足（48/32）S +（48/14）N≤Ti≤2[（48/32）S +（48/14）N ]，其余的Fe，其中在钢中沉淀的碳化铁的平均直径为2μm或更小。根据本发明的热处理钢板在压制成形和淬火后具有高强度和优异的耐氢脆性，使得钢板非常适合于汽车构造构件。

8. 发明授权

US5460666A Method of manufacturing natural aging-retardated aluminum alloy sheet 失效
标题翻译：自然老化延迟铝合金板的制造方法
公开(公告)号：US5460666A
公开(公告)日：1995-10-24
申请号：US205623
申请日：1994-03-02
申请人： Takeshi Fujita , Kohei Hasegawa , Shinji Mitao , Masataka Suga , Masakazu Niikura , Koichi Ohori , Hiroshi Saitoh
发明人： Takeshi Fujita , Kohei Hasegawa , Shinji Mitao , Masataka Suga , Masakazu Niikura , Koichi Ohori , Hiroshi Saitoh
IPC分类号： C22C21/06 , C22C21/08 , C22F1/047
CPC分类号： C22C21/08 , C22F1/047
摘要： A method manufacturing an aluminum alloy sheet comprising preparing an aluminum alloy ingot essentially consisting of 1.5 to 3.5% by weight of Mg, 0.3 to 1.0% by weight of Cu, 0.05 to 0.6% by weight of Si, and a balance of Al, in which the ratio of Mg/Cu is in the range of 2 to 7, homogenizing the ingot in one step or in multiple steps, performed at a temperature within a range of 400 to 580.degree. C., preparing an alloy sheet having a desired sheet thickness by subjecting the ingot to a hot rolling and a cold rolling, subjecting the alloy sheet to heat treatment including heating the sheet up to a range of 500.degree. to 580.degree. C. at a heating rate of 3.degree. C./sec. or more, keeping it for 0 to 60 seconds at the temperature reached, and cooling it to 100.degree. C. or less at a looking rate of 2.degree. C./sec. or more, and keeping the alloy sheet at a temperature within a range of 180.degree. to 300.degree. C. for 3 to 60 seconds. Thus, a natural aging-retardated aluminum alloy sheet is obtained.
摘要翻译：一种制造铝合金板的方法，包括制备基本上由1.5至3.5重量％的Mg，0.3至1.0重量％的Cu，0.05至0.6重量％的Si和余量的Al的铝合金锭其中Mg / Cu的比例在2〜7的范围内，在400〜580℃的温度范围内进行1步或多步均质化，制备具有所需片材的合金薄片通过使锭进行热轧和冷轧，使该合金板进行热处理，包括将片材加热至500℃〜580℃的范围，加热速度为3℃/秒。以上，在达到的温度下保持0〜60秒，并以2℃/秒的倍率冷却至100℃以下。以上，将合金板保持在180〜300℃的范围内3〜60秒。因此，获得了自然老化延迟的铝合金板。

9. 发明授权

US09914988B2 High-strength cold-rolled steel sheet with high yield ratio having excellent formability and method for producing the same 有权
公开(公告)号：US09914988B2
公开(公告)日：2018-03-13
申请号：US13980981
申请日：2011-11-30
申请人： Katsutoshi Takashima , Yuki Toji , Kohei Hasegawa
发明人： Katsutoshi Takashima , Yuki Toji , Kohei Hasegawa
IPC分类号： C22C38/04 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/12 , C22C38/08 , C22C38/14 , C22C38/16 , C22C38/26
CPC分类号： C21D8/0263 , C21D8/0226 , C21D8/0236 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/26
摘要： Provided are a high-strength cold-rolled steel sheet having excellent formability, excellent ductility, excellent hole expansibility, and high yield ratio and a method for producing the same. The high-strength cold-rolled steel sheet contains 0.05% to 0.15% C, 0.10% to 0.90% Si, 1.0% to 2.0% Mn, 0.005% to 0.05% P, 0.0050% or less S, 0.01% to 0.10% Al, 0.0050% or less N, and 0.010% to 0.100% Nb, which are chemical components, on a mass basis, the balance being Fe and unavoidable impurities; has a microstructure which is a multi-phase structure containing 90% or more of a ferrite phase and 0.5% to less than 5.0% of a martensite phase on a volume fraction basis, the remainder being low-temperature transformation phases; and has a yield ratio of 70% or more.

10. 发明申请

US20130087257A1 ULTRA HIGH STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT DUCTILITY AND DELAYED FRACTURE RESISTANCE AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：超高强度冷轧钢板，具有优异的耐腐蚀性和延伸的抗断裂性及其制造方法
公开(公告)号：US20130087257A1
公开(公告)日：2013-04-11
申请号：US13805144
申请日：2011-06-24
申请人： Masataka Yoshino , Kohei Hasegawa
发明人： Masataka Yoshino , Kohei Hasegawa
IPC分类号： C21D8/00 , C22C38/12 , C22C38/00 , C22C38/04 , C22C38/02 , C22C38/14 , C22C38/06
CPC分类号： C21D8/005 , C21D6/00 , C21D8/00 , C21D8/0436 , C21D8/0447 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14
摘要： An ultra.-high-strength cold-rolled steel sheet with excellent ductility and delayed fracture resistance includes 0.15% to 0.75 C. 1.0% to 3.0% Si, 1.5% to 2.5% Mn, 0.05% or less P, 0.02% or less 5, 0.01% to 0.05% Al, and less than 0.005% N on a mass ratio, the remainder being Fe and =avoidable impurities, the ultra-high-strength cold-rolled steel sheet having a metal microstructure including 40% to 85% of a tempered martensite phase and 15% to 60% of a ferrite phase on a volume fraction basis and a tensile strength of 1320 Mtn or more.
摘要翻译：具有优异的延展性和耐延迟断裂性的超高强度冷轧钢板包括0.15％〜0.75％的Si，1.0〜3.0％的Si，1.5〜2.5％的Mn，0.05％以下的P，0.02％以下 5％，0.01％〜0.05％的Al和小于0.005％的N，其余为Fe和=可避免的杂质，具有金属组织的超高强度冷轧钢板包括40％〜85％的回火马氏体相和15〜60％的铁素体相，体积分数为1320Mnn以上。

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