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11. 发明申请

US20120222781A1 HIGH STRENGTH STEEL PLATE WITH ULTIMATE TENSILE STRENGTH OF 900 MPa OR MORE EXCELLENT IN HYDROGEN EMBRITTLEMENT RESISTANCE AND METHOD OF PRODUCTION OF SAME 有权
标题翻译：具有900MPa以上或更优异的氢腐蚀电阻的最终拉伸强度的高强度钢板及其制造方法
公开(公告)号：US20120222781A1
公开(公告)日：2012-09-06
申请号：US13508779
申请日：2010-11-30
申请人： Masafumi Azuma , Noriyuki Suzuki , Naoki Maruyama , Akinobu Murasato , Yasuharu Sakuma , Hiroyuki Kawata , Chisato Wakabayashi
发明人： Masafumi Azuma , Noriyuki Suzuki , Naoki Maruyama , Akinobu Murasato , Yasuharu Sakuma , Hiroyuki Kawata , Chisato Wakabayashi
IPC分类号： C21D8/00 , C22C38/04 , C22C38/02 , C22C38/16 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/00 , C22C38/06
CPC分类号： C23C2/06 , C21D9/46 , C21D2211/002 , C21D2211/004 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/28 , C23C2/40 , C25D5/36
摘要： High strength steel plate with an ultimate tensile strength of 900 MPa or more which is excellent in hydrogen embrittlement resistance characterized in that, in the structure of the steel plate, (a) by volume fraction, ferrite is present in 10 to 50%, bainitic ferrite and/or bainite in 10 to 60%, and tempered martensite in 10 to 50%, and (b) iron-based carbides which contain Si or Si and Al in 0.1% or more are present in 4×108 (particles/mm3) or more.
摘要翻译：具有900MPa以上的极限拉伸强度的高强度钢板，其耐氢脆性优异，其特征在于，在钢板的结构中，（a）以体积分数计，铁素体的含量为10〜50％，贝氏体铁素体和/或贝氏体为10〜60％，回火马氏体为10〜50％，（b）含有Si或Si和Al为0.1％以上的铁基碳化物存在于4×10 8（粒子/ mm 3 ）或者更多。

12. 发明授权

US07413780B2 High strength galvannealed steel sheet excellent in workability and a method of production of the same 有权
标题翻译：加工性优异的高强度合金化热镀锌钢板及其制造方法
公开(公告)号：US07413780B2
公开(公告)日：2008-08-19
申请号：US10540589
申请日：2002-12-26
申请人： Kazuhiko Honda , Masaharu Kameda , Yasuharu Sakuma , Akio Saito , Tetsuo Nishiyama , Atsushi Itami
发明人： Kazuhiko Honda , Masaharu Kameda , Yasuharu Sakuma , Akio Saito , Tetsuo Nishiyama , Atsushi Itami
IPC分类号： B21B27/00 , B21B27/06 , C22C38/00 , B05D1/18
CPC分类号： B32B15/013 , C21D8/0278 , C22C18/00 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/06 , C23C2/28 , Y10T29/301 , Y10T428/12799
摘要： Galvannealed steel sheet simultaneously able to achieve excellent workability and high strength and a method of production of the same are provided as an objective, in particular high strength galvannealed steel sheet excellent in workability, comprising high strength steel sheet containing, by mass %, C: 0.05 to 0.15%, Si: 0.3 to 2.0%, Mn: 1.0 to 2.8%, P: 0.03% or less, S: 0.02% or less, Al: 0.005 to 0.5%, and N: 0.0060% or less and a balance of Fe and unavoidable impurities, where, when % C, % Si, and % Mn respectively represent the C, Si, and Mn contents, (% Mn)/(% C)≧12 and (% Si)/(% C)≧4 being satisfied, on the surface of which having a galvannealed layer containing Al: 0.05 to 0.5 mass % and Fe: 5 to 15 mass % and a balance of Zn and unavoidable impurities, said steel sheet satisfying a relationship of tensile strength F (MPa) and elongation L (%) of L≧52−0.035×F.
摘要翻译：提供同时能够实现优异的加工性和高强度的加热冷却钢板及其制造方法，作为目的，特别是加工性优异的高强度合金化热浸镀锌钢板，包括以质量％计含有C： 0.05〜0.15％，Si：0.3〜2.0％，Mn：1.0〜2.8％，P：0.03％以下，S：0.02％以下，Al：0.005〜0.5％，N：0.0060％的Fe和不可避免的杂质，其中当％C，％Si和％Mn分别表示C，Si和Mn含量时，（％Mn）/（％C）> = 12和（％Si）/（％C ）> = 4，其表面具有含有Al：0.05〜0.5质量％的合金化热浸镀层，Fe：5〜15质量％，余量为Zn和不可避免的杂质，所述钢板满足拉伸强度 L> = 52-0.035×F的F（MPa）和伸长率L（％）。

13. 发明授权

US5855696A Ultra low carbon, cold rolled steel sheet and galvanized steel sheet having improved fatigue properties and processes for producing the same 失效
标题翻译：具有改善的疲劳特性的超低碳冷轧钢板和镀锌钢板及其制造方法
公开(公告)号：US5855696A
公开(公告)日：1999-01-05
申请号：US737909
申请日：1997-03-19
申请人： Makoto Tezuka , Kohsaku Ushioda , Shiro Fujii , Atsushi Itami , Yasuharu Sakuma , Tatsuo Yokoi
发明人： Makoto Tezuka , Kohsaku Ushioda , Shiro Fujii , Atsushi Itami , Yasuharu Sakuma , Tatsuo Yokoi
IPC分类号： C21D8/04 , C22C38/00 , C22C38/06 , C22C38/12 , C22C38/14 , C23C2/02 , C23C2/06 , C23C2/40 , C22C38/04
CPC分类号： C22C38/12 , C21D8/0436 , C22C38/001 , C22C38/06 , C22C38/14 , C23C2/02 , C23C2/06 , C23C2/40 , C21D8/0426 , C21D8/0473 , C21D8/0478
摘要： The cold rolled steel sheet or galvanized steel sheet comprises by weight C: 0.0001 to 0.0026%, Si: not more than 1.2%, Mn: 0.03 to 3.0%, P: 0.015 to 0.15%, S: 0.0010 to 0.020%, Al: 0.005 to 0.1%, N: 0.0005 to 0.0080% and B: 0.0003 to 0.0030% with the balance consisting of Fe and unavoidable impurities. A process for producing the above steel sheet is also provided which comprises the steps of: performing hot roll finishing of a slab having the above chemical composition at the Ar.sub.3 transformation point or above; preferably, then cooling the hot rolled strip, within 1.5 sec after the completion of the hot rolling, to 750.degree. C. at a rate of not less than 50.degree. C./sec; coiling the strip in the temperature range of from room temperature to 750.degree. C.; cold rolling the coiled strip a reduction ratio of not less than 70%; subjecting the cold rolled strip to continuous annealing at 600.degree. to 900.degree. C. or to continuous galvanizing by the sendzimer method; and performing temper rolling with a reduction ratio of not less than 1.5.times.(1-400.times.C) % and not less than 2080.times.(C - 0.0015) wherein C represents the carbon content in % by weight.
摘要翻译： PCT No.PCT / JP96 / 00805 Sec。 371日期1997年3月19日 102（e）1997年3月19日PCT PCT 1996年3月27日PCT公布。出版物WO96 / 30555 日期：1996年10月3日冷轧钢板或镀锌钢板以C：0.0001〜0.0026％，Si：1.2％以下，Mn：0.03〜3.0％，P：0.015〜0.15％，S：0.0010〜 0.020％，Al：0.005〜0.1％，N：0.0005〜0.0080％，B：0.0003〜0.0030％，余量由Fe和不可避免的杂质构成。还提供了一种生产上述钢板的方法，其包括以下步骤：在Ar 3相变点或更高温度下进行具有上述化学组成的板坯的热轧精加工; 优选在热轧结束后的1.5秒内将热轧带材冷却至750℃以上，不低于50℃/秒; 在室温至750℃的温度范围内卷取带材; 冷轧卷取钢带的减速比不小于70％; 使冷轧带材在600〜900℃下进行连续退火，或通过sendzimer法连续镀锌; 并且以不小于1.5×（1-400×℃）％且不小于2080×（C-0.0015）的还原率进行调质轧制，其中C表示碳含量以重量％计。

14. 发明授权

US10023947B2 High strength steel plate with ultimate tensile strength of 900 MPa or more excellent in hydrogen embrittlement resistance and method of production of same 有权
公开(公告)号：US10023947B2
公开(公告)日：2018-07-17
申请号：US13508779
申请日：2010-11-30
申请人： Masafumi Azuma , Noriyuki Suzuki , Naoki Maruyama , Akinobu Murasato , Yasuharu Sakuma , Hiroyuki Kawata , Chisato Wakabayashi
发明人： Masafumi Azuma , Noriyuki Suzuki , Naoki Maruyama , Akinobu Murasato , Yasuharu Sakuma , Hiroyuki Kawata , Chisato Wakabayashi
IPC分类号： C21D8/00 , C22C38/04 , C22C38/02 , C23C2/06 , C21D9/46 , C22C38/00 , C22C38/06 , C23C2/28 , C25D5/36 , C23C2/40
摘要： High strength steel plate with an ultimate tensile strength of 900 MPa or more which is excellent in hydrogen embrittlement resistance characterized in that, in the structure of the steel plate, (a) by volume fraction, ferrite is present in 10 to 50%, bainitic ferrite and/or bainite in 10 to 60%, and tempered martensite in 10 to 50%, and (b) iron-based carbides which contain Si or Si and Al in 0.1% or more are present in 4×108 (particles/mm3) or more.

15. 发明申请

US20140178712A1 HIGH YIELD RATIO HOT ROLLED STEEL SHEET WHICH HAS EXCELLENT LOW TEMPERATURE IMPACT ENERGY ABSORPTION AND HAZ SOFTENING RESISTANCE AND METHOD OF PRODUCTION OF SAME 审中-公开
标题翻译：具有优异的低温冲击能量吸收和耐高温电阻的高效率热轧钢板及其制造方法
公开(公告)号：US20140178712A1
公开(公告)日：2014-06-26
申请号：US14236371
申请日：2012-08-08
申请人： Naoki Maruyama , Naoki Yoshinaga , Masafumi Azuma , Yasuharu Sakuma , Atsushi Itami
发明人： Naoki Maruyama , Naoki Yoshinaga , Masafumi Azuma , Yasuharu Sakuma , Atsushi Itami
IPC分类号： C22C38/50 , C22C38/48 , C22C38/42 , C22C38/16 , C22C38/00 , C22C38/12 , C22C38/06 , C22C38/04 , C22C38/02 , C21D8/02 , C22C38/14
CPC分类号： C22C38/50 , C21D8/0263 , C21D8/0426 , C21D8/0473 , C21D8/0484 , C21D9/56 , C21D2211/002 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/42 , C22C38/48 , C23C2/02 , Y10T428/12972
摘要： Hot rolled steel sheet which has a maximum tensile strength of 600 MPa or more and has an excellent low temperature impact energy absorption and HAZ softening resistance and a method of production of the same are provided, that is, sheet which contains, by mass %, C: 0.04 to 0.09%, Si: 0.4% or less, Mn: 1.2 to 2.0%, P: 0.1% or less, S: 0.02% or less, Al: 1.0% or less, Nb: 0.02 to 0.09%, Ti: 0.02 to 0.07%, and N: 0.005% or less, where 2.0≦Mn+8[% Ti]+12[% Nb]≦2.6, has a balance of Fe and unavoidable impurities, has an area percentage of pearlite of 5% or less, has a total area percentage of martensite and retained austenite of 0.5% or less, has a balance of a metal structure of ferrite and/or bainite, has an average grain size of ferrite and bainite of 10 μm or less, has an average particle size of alloy carbonitrides with incoherent interfaces which contain Ti and Nb of 20 nm or less, and has a yield ratio of 0.85 or more.
摘要翻译：具有最大抗张强度为600MPa以上且具有优异的低温冲击能量吸收和HAZ耐软化性的热轧钢板及其制造方法，即以质量％计， C：0.04〜0.09％，Si：0.4％以下，Mn：1.2〜2.0％，P：0.1％以下，S：0.02％以下，Al：1.0％以下，Nb：0.02〜0.09％，Ti ：0.02〜0.07％，N：0.005％以下，其中2.0＆nlE; Mn + 8 [％Ti] +12 [％Nb]＆nlE; 2.6，其余为Fe和不可避免的杂质，具有珠光体的面积百分比为5％以下，具有0.5％以下的马氏体和残留奥氏体的总面积百分比，铁素体和/或贝氏体的金属结构的平衡，铁素体和贝氏体的平均粒径为10μm以下具有包含Ti和Nb为20nm以下的非相干界面的合金碳氮化物的平均粒径，并且屈服比为0.85以上。

16. 发明申请

US20060222882A1 Alloyed-molten-zinc-plated steel sheet with excellent processability and high strength and process for producing the same 有权
标题翻译：合金化的镀锌钢板，其加工性能好，强度高，制造方法高
公开(公告)号：US20060222882A1
公开(公告)日：2006-10-05
申请号：US10540589
申请日：2002-12-26
申请人： Kazuhiko Honda , Masaharu Kameda , Yasuharu Sakuma , Akio Saito , Tetsuo Nishiyama , Atsushi Itami
发明人： Kazuhiko Honda , Masaharu Kameda , Yasuharu Sakuma , Akio Saito , Tetsuo Nishiyama , Atsushi Itami
IPC分类号： B05D1/18 , C23C2/28 , C21D1/70 , C25D5/10
CPC分类号： B32B15/013 , C21D8/0278 , C22C18/00 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/06 , C23C2/28 , Y10T29/301 , Y10T428/12799
摘要： Galvannealed steel sheet simultaneously able to achieve excellent workability and high strength and a method of production of the same are provided as an objective, in particular high strength galvannealed steel sheet excellent in workability, comprising high strength steel sheet containing, by mass %, C: 0.05 to 0.15%, Si: 0.3 to 2.0%, Mn: 1.0 to 2.8%, P: 0.03% or less, S: 0.02% or less, Al: 0.005 to 0.5%, and N: 0.0060% or less and a balance of Fe and unavoidable impurities, where, when % C, % Si, and % Mn respectively represent the C, Si, and Mn contents, (% Mn)/(% C)≧12 and (% Si)/(% C)≧4 being satisfied, on the surface of which having a galvannealed layer containing Al: 0.05 to 0.5 mass % and Fe: 5 to 15 mass % and a balance of Zn and unavoidable impurities, said steel sheet satisfying a relationship of tensile strength F (MPa) and elongation L (%) of L≧52−0.035×F.
摘要翻译：提供同时能够实现优异的加工性和高强度的加热冷却钢板及其制造方法，作为目的，特别是加工性优异的高强度合金化热浸镀锌钢板，包括以质量％计含有C： 0.05〜0.15％，Si：0.3〜2.0％，Mn：1.0〜2.8％，P：0.03％以下，S：0.02％以下，Al：0.005〜0.5％，N：0.0060％的Fe和不可避免的杂质，其中当％C，％Si和％Mn分别表示C，Si和Mn含量时，（％Mn）/（％C）> = 12和（％Si）/（％C ）> = 4，其表面具有含有Al：0.05〜0.5质量％的合金化热浸镀层，Fe：5〜15质量％，余量为Zn和不可避免的杂质，所述钢板满足拉伸强度 L> = 52-0.035×F的F（MPa）和伸长率L（％）。

17. 发明申请

US20110017360A1 HOT-ROLLED STEEL SHEET EXCELLENT IN FATIGUE PROPERTIES AND STRETCH-FLANGE FORMABILITY AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：热轧性能优异的热轧钢板和拉伸法兰形成性及其制造方法
公开(公告)号：US20110017360A1
公开(公告)日：2011-01-27
申请号：US12934039
申请日：2008-11-12
申请人： Naoki Yoshinaga , Masafumi Azuma , Yasuharu Sakuma , Naoki Maruyama
发明人： Naoki Yoshinaga , Masafumi Azuma , Yasuharu Sakuma , Naoki Maruyama
IPC分类号： C21D8/02 , C22C38/00 , B32B15/01 , C22C38/02 , C22C38/04
CPC分类号： C22C38/14 , C21D8/0426 , C21D8/0463 , C21D9/46 , C21D9/48 , C21D2211/004 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/02 , C23C2/28
摘要： This hot-rolled steel sheet contains, in terms of mass%, C: 0.015% or more to less than 0.040%; Si: less than 0.05%; Mn: 0.9% or more to 1.8% or less; P: less than 0.02%; S: less than 0.01%; Al: less than 0.1%; N: less than 0.006%; and Ti: 0.05% or more to less than 0.11%, with the remainder being Fe and inevitable impurities, wherein Ti/C is in a range of 2.5 or more to less than 3.5, Nb, Zr, V, Cr, Mo, B and W are not included, a microstructure includes a mixed microstructure of polygonal ferrite and quasi-polygonal ferrite in a proportion of greater than 96%, a maximum tensile strength is 520 MPa or more and less than 720 MPa, an aging index AI is more than 15 MPa, a product of a hole expansion ratio (A) % and a total elongation (El) % is 2350 or more, and a fatigue limit is 200 MPa or more.
摘要翻译：该热轧钢板以质量％计含有C：0.015％以上且小于0.040％ Si：小于0.05％; Mn：0.9％以上至1.8％以下; P：小于0.02％; S：小于0.01％; Al：小于0.1％; N：小于0.006％; 和Ti：0.05％以上至小于0.11％，其余为Fe和不可避免的杂质，其中Ti / C在2.5以上且小于3.5的范围内，Nb，Zr，V，Cr，Mo，B 并不包括W，微结构包括多数铁素体和准多边形铁素体的混合微结构，其比例大于96％，最大拉伸强度为520MPa以上且低于720MPa，老化指数AI更多孔膨胀率（A）％和总伸长率（E1）％的乘积为15MPa以上，疲劳极限为200MPa以上。

18. 发明申请

US20110008647A1 HIGH-STRENGTH COLD-ROLLED STEEL SHEET, HIGH-STRENGTH GALVANIZED STEEL SHEET, AND HIGH-STRENGTH ALLOYED HOT-DIP GALVANIZED STEEL SHEET HAVING EXCELLENT FORMABILITY AND WELDABILITY, AND METHODS FOR MANUFACTURING THE SAME 有权
标题翻译：高强度冷轧钢板，高强度钢化钢板，以及具有优异的可变性和焊接性的高强度合金热镀锌钢化钢板及其制造方法
公开(公告)号：US20110008647A1
公开(公告)日：2011-01-13
申请号：US12736154
申请日：2009-03-26
申请人： Masafumi Azuma , Naoki Yoshinaga , Naoki Maruyama , Noriyuki Suzuki , Yasuharu Sakuma
发明人： Masafumi Azuma , Naoki Yoshinaga , Naoki Maruyama , Noriyuki Suzuki , Yasuharu Sakuma
IPC分类号： B32B15/18 , C21D8/02 , C25D7/00 , C23C2/02 , C22C38/18 , C22C38/40 , C22C38/20 , C22C38/22
CPC分类号： C22C38/32 , C21D8/0226 , C21D8/04 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/002 , C22C38/02 , C22C38/28 , C22C38/38 , C23C2/02 , C23C2/04 , C23C2/26 , C23C2/28 , Y10T428/12799
摘要： This cold-rolled steel sheet includes, in terms of mass %, C: not less than 0.05% and not more than 0.095%, Cr: not less than 0.15% and not more than 2.0%, B: not less than 0.0003% and not more than 0.01%, Si: not less than 0.3% and not more than 2.0%, Mn: not less than 1.7% and not more than 2.6%, Ti: not less than 0.005% and not more than 0.14%, P: not more than 0.03%, S: not more than 0.01%, Al: not more than 0.1%, N: less than 0.005%, O: not less than 0.0005% and not more than 0.005%, and contains as the remainder, iron and unavoidable impurities, wherein the microstructure of the steel sheet includes mainly polygonal ferrite having a crystal grain size of not more than 4 μm, and hard microstructures of bainite and martensite, the block size of the martensite is not more than 0.9 μm, the Cr content within the martensite is 1.1 to 1.5 times the Cr content within the polygonal ferrite, and the tensile strength is at least 880 MPa.
摘要翻译：该冷轧钢板以质量％计含有C：0.05％以上0.095％以下的Cr：0.15％以上2.0％以下，B：0.0003％以上， 0.01％以下，Si：0.3％以上2.0％以下，Mn：1.7％以上2.6％以下，Ti：0.005％以上0.14％以下，P：不大于0.03％，S：不大于0.01％，Al：不大于0.1％，N：小于0.005％，O：不小于0.0005％，不大于0.005％，其余为铁和不可避免的杂质，其中钢板的组织主要包括晶粒尺寸不大于4μm的多边形铁素体，贝氏体和马氏体的硬质组织，马氏体的块尺寸不大于0.9μm，Cr 马氏体内的含量为多边形铁素体中的Cr含量的1.1〜1.5倍，拉伸强度为880MPa以上。

19. 发明授权

US06511553B1 Steel for steel excellent in workability and method of deoxidizing same 有权
标题翻译：钢的加工性优异的钢板及其脱氧方法
公开(公告)号：US06511553B1
公开(公告)日：2003-01-28
申请号：US09403232
申请日：1999-10-15
申请人： Junji Nakashima , Takashi Sawai , Mitsuo Uchimura , Wataru Yamada , Shigenori Tanaka , Yasuharu Sakuma , Akinobu Murasato
发明人： Junji Nakashima , Takashi Sawai , Mitsuo Uchimura , Wataru Yamada , Shigenori Tanaka , Yasuharu Sakuma , Akinobu Murasato
IPC分类号： C22C3806
CPC分类号： C22C38/001 , C21C7/0006 , C21C7/06 , C22C38/04 , C22C38/14 , Y02P10/212
摘要： The present invention provides a steel for steel sheets excellent in workability and showing significantly decreased formation of surface defects, and a method of deoxidizing molten steel for the steel for steel sheets which prevents nozzle clogging during continuous-casting the molten steel. That is, the steel for steel sheets excellent in workability, comprises, based on weight, 0.0001 to 0.0030% of C, up to 0.03% of Si, 0.05 to 0.30% of Mn, up to 0.015% of P, 0.001 to 0.015% of S, up to 0.008% of Al, 0.02 to 0.08% of Ti, 0.0005 to 0.0020% of Ca, 0.0005 to 0.01% of N, optionally containing at least one of 0.001 to 0.02 wt % of Nb and 0.0001 to 0.0010 wt % of B, and the balance of Fe and unavoidable impurities. Moreover, the deoxidation method of the steel for steel sheets comprises properly adjusting addition amounts of Ca and Al as deoxidizing agents for the steel having the chemical composition mentioned above so that the chemical composition of the nonmetallic inclusions is controlled to prevent clogging of the casting nozzle.
摘要翻译：本发明提供一种加工性优异，表面缺陷形成显着降低的钢板用钢，以及钢水连续铸造时防止喷嘴堵塞的钢板钢的脱氧方法。也就是说，加工性优异的钢板用钢的重量为C：0.0001〜0.0030％，Si：0.03％以下，Mn：0.30〜0.30％，P：0.015％以下，0.001〜0.015％的S，至多0.008％的Al，0.02〜0.08％的Ti，0.0005〜0.0020％的Ca，0.0005〜0.01％的N，任选含有0.001〜0.02重量％的Nb和0.0001〜0.0010重量％的至少一种，的B，余量为Fe和不可避免的杂质。此外，钢板的钢的脱氧方法包括适当地调节Ca和Al的添加量作为具有上述化学组成的钢的脱氧剂，使得控制非金属夹杂物的化学组成以防止铸造喷嘴的堵塞。

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