专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060037677A1 High strength cold rolled steel sheet and method for manufacturing the same 审中-公开
标题翻译：高强度冷轧钢板及其制造方法
公开(公告)号：US20060037677A1
公开(公告)日：2006-02-23
申请号：US11050362
申请日：2005-02-03
申请人： Yoshihiko Ono , Fusato Kitano , Yasunobu Nagataki , Yasushi Tanaka , Hisanori Ando
发明人： Yoshihiko Ono , Fusato Kitano , Yasunobu Nagataki , Yasushi Tanaka , Hisanori Ando
IPC分类号： C21D8/00
CPC分类号： C22C38/06 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D8/0478 , C22C38/02 , C22C38/04
摘要： The present invention relates to a high strength cold rolled steel sheet consisting of 0.015% or less of C, 1.5% or less of Si, 0.4 to 3% of Mn, 0.15% or less of P, 0.02% or less of S, 0.1 to 1% of sol.Al, 0.01% or less of N, 0.2% or less of Ti, by mass %, and the balance of Fe and inevitable impurities. In this steel sheet, 1≦([Ti]/48)/([C]/12+[N]/14) is satisfied, in which [M] represents the content of the element M. Since having the superior deep drawability and the TS of 340 to 590 MPa, the high strength cold rolled steel sheet of the present invention is preferably used for automobiles parts difficult to be press formed, such as a side outer panel and a door inner panel.
摘要翻译：本发明涉及由C：0.015％以下，Si：1.5％以下，Mn：0.4〜3％，P：0.15％以下，S：0.02％以下的高强度冷轧钢板至1％的Al，0.01％以下的N，0.2％以下的Ti，以质量％计，余量为Fe和不可避免的杂质。在该钢板中，满足1 <=（[Ti] / 48）/（[C] / 12 + [N] / 14），其中[M]表示元素M的含量。拉伸性和TS为340〜590MPa，本发明的高强度冷轧钢板优选用于难以压制成型的汽车零件，例如侧面板和门内板。

2. 发明授权

US07608156B2 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：US07608156B2
公开(公告)日：2009-10-27
申请号：US10549164
申请日：2004-11-26
申请人： Yoshihiko Ono , Yasunobu Nagataki , Yasushi Tanaka , Kozo Harada , Hisanori Ando
发明人： Yoshihiko Ono , Yasunobu Nagataki , Yasushi Tanaka , Kozo Harada , Hisanori Ando
IPC分类号： C22C38/12 , C22C38/26 , C22C38/48 , C21D8/00
CPC分类号： C22C38/02 , C21D8/0236 , C21D8/0273 , C21D2211/005 , C22C38/04 , C22C38/06
摘要： This disclosure relates to a high strength cold rolled steel sheet composed of ferrite grains having an average grain diameter of 10 μm or less, in which the average number per unit area of Nb(C, N) precipitates having a diameter of 50 nm or more is 7.0×10−2/μm2 or less, and a zone having a width of 0.2 to 2.4 μm and an average area density of NbC precipitates of 60% or less of that of the central portion of the ferrite grains is formed along grain boundaries of the ferrite grains, for example, the steel sheet consisting of 0.004 to 0.02% of C, 1.5% or less of Si, 3% or less of Mn, 0.15% or less of P, 0.02% or less of S, 0.1 to 1.5% of sol.Al, 0.001 to 0.007% of N, 0.03 to 0.2% of Nb, by mass, and the balance of Fe and inevitable impurities. The steel sheet is most preferably used for automobile panel parts since it has the TS of 340 MPa or more and the superior surface strain resistance and press formability.
摘要翻译：本发明涉及由平均粒径为10μm以下的铁素体晶粒构成的高强度冷轧钢板，其中，直径为50nm以上的Nb（C，N）析出物的平均单位面积数为7.0×10 -2 / m 2以下，宽度为0.2〜2.4μm的区域和NbC析出物的平均面积密度为铁素体晶粒中央部的平均面积密度的60％以下，沿着铁素体晶粒例如由C：0.004〜0.02％，Si：1.5％以下，Mn：3％以下，P：0.15％以下，S：0.02％以下，S：0.1〜1.5 ％的溶胶A1，0.001〜0.007％的N，0.03〜0.2％的Nb，其余为Fe和不可避免的杂质。钢板最好用于汽车面板部件，因为其具有340MPa以上的TS和优异的表面应变阻力和冲压成形性。

3. 发明申请

US20060169365A1 High strength cold rolled steel sheet and method for production thereof 有权
标题翻译：高强度冷轧钢板及其制造方法
公开(公告)号：US20060169365A1
公开(公告)日：2006-08-03
申请号：US10549164
申请日：2004-11-26
申请人： Yoshihiko Ono , Yasunobu Nagataki , Kozo Harada , Hisanori Ando
发明人： Yoshihiko Ono , Yasunobu Nagataki , Kozo Harada , Hisanori Ando
IPC分类号： C22C38/00 , C21D8/00
CPC分类号： C22C38/02 , C21D8/0236 , C21D8/0273 , C21D2211/005 , C22C38/04 , C22C38/06
摘要： The present invention relates to a high strength cold rolled steel sheet composed of ferrite grains having an average grain diameter of 10 μm or less, in which the average number per unit area of Nb(C, N) precipitates having a diameter of 50 nm or more is 7.0×10−2/μm2 or less, and a zone having a width of 0.2 to 2.4 μm and an average area density of NbC precipitates of 60% or less of that of the central portion of the ferrite grains is formed along grain boundaries of the ferrite grains, for example, the steel sheet consisting of 0.004 to 0.02% of C, 1.5% or less of Si, 3% or less of Mn, 0.15% or less of P, 0.02% or less of S, 0.1 to 1.5% of sol.Al, 0.001 to 0.007% of N, 0.03 to 0.2% of Nb, by mass, and the balance of Fe and inevitable impurities. The steel sheet of the present invention is most preferably used for automobile panel parts since it has the TS of 340 MPa or more and the superior surface strain resistance and press formability.
摘要翻译：本发明涉及由平均粒径为10μm以下的铁素体晶粒构成的高强度冷轧钢板，其中，直径为50nm的Nb（C，N）析出物的平均单位面积数，更优选为7.0×10 -2 / m 2以下，宽度为0.2〜2.4μm，NbC析出物的平均面密度为60％以下的区域铁素体晶粒的中心部分沿铁素体晶粒的边界形成，例如，由0.004〜0.02％的C，1.5％以下的Si，3％以下的Mn，0.15 P％以下，S：0.02％以下，Sol：Al：0.1〜1.5％，N：0.001〜0.007，Nb：0.03〜0.2％，Fe：不可避免的杂质。本发明的钢板最好用于汽车面板部件，因为其具有340MPa以上的TS和优异的表面应变阻力和冲压成形性。

4. 发明授权

US06440584B1 Hot-dip galvanized steel sheet and method for producing the same 有权
标题翻译：热浸镀锌钢板及其制造方法
公开(公告)号：US06440584B1
公开(公告)日：2002-08-27
申请号：US09953788
申请日：2001-09-17
申请人： Yasunobu Nagataki , Toshiaki Urabe , Fusato Kitano , Akio Kobayashi , Kunikazu Tomita , Shunsaku Node , Kozo Harada , Shogo Sato , Toru Inazumi
发明人： Yasunobu Nagataki , Toshiaki Urabe , Fusato Kitano , Akio Kobayashi , Kunikazu Tomita , Shunsaku Node , Kozo Harada , Shogo Sato , Toru Inazumi
IPC分类号： B32B1518
CPC分类号： C21D8/0263 , C21D8/0278 , C21D9/56 , C21D2211/005 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/24 , C22C38/38 , C23C2/02 , C23C2/40 , Y10S428/939 , Y10T428/12799
摘要： A hot-dip galvanized steel sheet is produced by rough rolling a steel, finish rolling the rough rolled steel at a temperature of Ar3 point or more, coiling the finish rolled steel at a temperature of 700° C. or less, and hot-dip galvanizing the coiled steel at a pre-plating heating temperature of Ac1 to Ac3. A continuous hot-dip galvanizing operation is performed by soaking a pickled strip at a temperature of 750 to 850° C., cooling the soaked strip to a temperature range of 600° C. or less at a cooling rate of 1 to 50° C. per second, hot-dip galvanizing the cooled strip, and cooling the galvanized strip so that the residence time at 400 to 600° C. is within 200 seconds. The steel sheet has a structure consisting essentially of ferrite and martensite.
摘要翻译：热轧镀锌钢板通过粗轧制造，在Ar3点以上的温度下对粗轧制品进行精轧，在700℃以下的温度下卷取精轧辊，热浸镀锌钢板以预镀层加热温度Ac1〜Ac3镀锌钢卷。通过在750〜850℃的温度下浸渍酸洗条，进行连续热浸镀锌作业，将浸渍后的钢带以1〜50℃的冷却速度冷却至600℃以下的温度范围每秒，对冷却的条进行热浸镀锌，并冷却镀锌带，使得在400至600℃的停留时间在200秒内。钢板具有由铁素体和马氏体组成的结构。

5. 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。

6. 发明授权

US06869691B2 High strength hot-dip galvanized steel sheet and method for manufacturing the same 有权
标题翻译：高强度热浸镀锌钢板及其制造方法
公开(公告)号：US06869691B2
公开(公告)日：2005-03-22
申请号：US10273052
申请日：2002-10-17
申请人： Yasunobu Nagataki , Fusato Kitano , Kentaro Sato , Masahiro Iwabuchi , Akira Gamou
发明人： Yasunobu Nagataki , Fusato Kitano , Kentaro Sato , Masahiro Iwabuchi , Akira Gamou
IPC分类号： C21D9/46 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/26 , C22C38/38 , C23C2/02 , C23C2/06 , C23C2/40 , B32B15/00 , C21D8/00
CPC分类号： C22C38/02 , C21D8/0205 , C21D8/0278 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/26 , C22C38/38 , C23C2/02 , C23C2/06 , C23C2/40 , Y10T428/12799
摘要： The invention relates to a high strength hot-dip galvanized steel sheet consisting essentially of 0.03 to 0.25% C, 0.7% or less Si, 1.4 to 3.5% Mn, 0.05% or less P, 0.01% or less S, 0.05 to 1% Cr, 0.005 to 0.1% Nb, by mass, and balance of Fe, and being made of a composite structure of ferrite and secondary phase, and having an average grain size of the composite structure of 10 μm or smaller. Since the high strength hot-dip galvanized steel sheet of the present invention hardly induces softening at HAZ during welding, it is applicable to structural members of automobiles for “Tailor Welded Blanks” (TWB).
摘要翻译：本发明涉及基本上由0.03-0.25％C，0.7％或更少的Si，1.4到3.5％的Mn，0.05％或更少的P，0.01％或更少的S，0.05到1％ Cr，0.005〜0.1％Nb，余量为Fe，由铁素体和二次相的复合结构构成，复合结构的平均粒径为10μm以下。由于本发明的高强度热浸镀锌钢板在焊接时在HAZ几乎不发生软化，因此适用于“裁缝焊接坯料”（TWB）的汽车结构件。

7. 发明授权

US5853903A Steel sheet for excellent panel appearance and dent resistance after panel-forming 失效
标题翻译：板材外观优异，板材成型后耐凹陷性好
公开(公告)号：US5853903A
公开(公告)日：1998-12-29
申请号：US847896
申请日：1997-04-28
申请人： Yoshihiro Hosoya , Fusato Kitano , Yasunobu Nagataki
发明人： Yoshihiro Hosoya , Fusato Kitano , Yasunobu Nagataki
IPC分类号： C22C38/12 , C22C38/14 , B32B15/01
CPC分类号： C22C38/12 , C22C38/14 , Y10T428/12868
摘要： A cold-rolled steel sheet or a zinc or zinc alloy layer coated steel sheet containing 0.0010 to 0.01 wt % of C and having a steel composition containing one or two kinds of 0.005 to 0.08 wt % of Nb and 0.01 to 0.07 wt % of Ti in the ranges given by {(12/93)Nb+(12/48)Ti*} .gtoreq.0.0005, 0.ltoreq.C-{(12/93)Nb+(12/48)Ti*}.ltoreq.0.0015, and Ti*=Ti-{(48/32)S+(48/14)N } , in which a bake hardenability BH f the steel sheet at 170.degree. C..times.20 min after 2% tensile prestrain is 10 to 35 MPa and the BH (MPa) and a yield strength YP (MPa) of the steel sheet satisfy the ranges given by BH.gtoreq.exp(-0.115.multidot.YP+23.0) and 0.67.multidot.BH+160.ltoreq.YP.ltoreq.-0.8.multidot.BH+280.
摘要翻译：含有0.0010〜0.01重量％的C，含有Nb或0.005〜0.08重量％的Nb和0.01〜0.07重量％的Ti的钢组合物的冷轧钢板或锌或锌合金层被覆钢板在{（12/93）Nb +（12/48）Ti *}> = 0.0005,0.0- =（（12/93）Nb +（12/48）Ti *} = 0.0015的范围内，Ti * = Ti-{（48/32）S +（48/14）N}，其中在2％拉伸预应变之后，170℃×120分钟钢板的烘烤淬透性BH f为10〜35MPa，钢板的BH（MPa）和屈服强度YP（MPa）满足由BH> / = exp（-0.115×YP + 23.0）和0.67×BH + 160

8. 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.

9. 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。

10. 发明申请

US20070122554A1 Method for manufacturing galvannealed steel sheet 审中-公开
标题翻译：合金化热镀锌钢板的制造方法
公开(公告)号：US20070122554A1
公开(公告)日：2007-05-31
申请号：US10575054
申请日：2004-12-16
申请人： Hiroshi Matsuda , Shoichiro Taira , Keisuke Ono , Toshiaki Urabe , Yasunobu Nagataki , Yasushi Tanaka , Michitaka Sakurai , Yoshiharu Sugimoto
发明人： Hiroshi Matsuda , Shoichiro Taira , Keisuke Ono , Toshiaki Urabe , Yasunobu Nagataki , Yasushi Tanaka , Michitaka Sakurai , Yoshiharu Sugimoto
IPC分类号： B05D3/02
CPC分类号： C22C38/18 , B32B15/013 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/38 , C23C2/06 , C23C2/28
摘要： A galvannealed steel sheet is manufactured by preparing a hot-dip galvanized steel sheet, alloying the steel sheet, and controlling time and temperature for alloying thereof depending on Si and Al contents. The hot-dip galvanized steel sheet contains 0.05 to 0.30% C, 0.01 to 2.0% Si, 0.08 to 3.0% Mn, 0.003 to 0.1% P, 0 to 0.07% S, 0.01 to 2.5% Al, 0 to 0.007% N, by mass, and the balance being Fe and inevitable impurities. Alloying time and temperature are controlled by the formula [Si+Al≧1.5×10−7×t0.75×(T−465)3+0.117], where t is the total time (sec) of holding the sheet at 465° C. or more on alloying the coating layer thereon, and T is the average temperature (° C.) of the sheet during the total time t (sec) of holding the steel sheet at 465° C. or more on alloying the coating layer thereon.
摘要翻译：通过制备合金化钢板的热镀锌钢板，根据Si和Al含量控制其合金化的时间和温度来制造合金化热浸镀锌钢板。该热镀锌钢板含有0.05〜0.30％的C，0.01〜2.0％的Si，0.08〜3.0％的Mn，0.003〜0.1％的P，0〜0.07％的S，0.01〜2.5％的Al，0〜0.007％的N，，余量为Fe和不可避免的杂质。合金时间和温度由公式[Si + Al> = 1.5×10 -7 -7×0.75×（T-465）3 + 0.117]，其中t是在465℃或更高的时间将片材保持在其上的涂层上的总时间（秒），T是在总时间t内的片材的平均温度（℃）（℃）秒），使钢板在其上合金化时为465℃以上。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式