公开(公告)号：US08353992B2

公开(公告)日：2013-01-15

申请号：US12312325

申请日：2007-11-07

申请人： Natsuko Sugiura ,  Naoki Maruyama ,  Manabu Takahashi ,  Yohji Nakamura ,  Koji Hanya

发明人： Natsuko Sugiura ,  Naoki Maruyama ,  Manabu Takahashi ,  Yohji Nakamura ,  Koji Hanya

IPC分类号： C22C38/14 ,  C22C38/12 ,  C21D38/02

CPC分类号： C23C2/40 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0226 ,  C21D8/0426 ,  C21D9/46 ,  C21D2201/05 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14 ,  C23C2/06 ,  Y10T428/12799

摘要： Steel sheet having a composition of ingredients containing substantially, by mass %, C: 0.005 to 0.200%, Si: 2.50% or less, Mn: 0.10 to 3.00%, N: 0.0100% or less, Nb: 0.005 to 0.100%, and Ti: 0.002 to 0.150% and satisfying the relationship of Ti−48/14×N≧0.0005, having a sum of the X-ray random intensity ratios of the {100} orientation and the {110} orientation of a ⅙ sheet thickness part of 5 or less, having a sum of the maximum value of the X-ray random intensity ratios of the {110} to {110} orientation group and the X-ray random intensity ratios of the {211} orientation of 5 or more, and having a high rolling direction Young's modulus measured by the static tension method and a method of production of the same are provided.

摘要翻译： 具有以质量％计含有C：0.005〜0.200％，Si：2.50％以下，Mn：0.10〜3.00％，N：0.0100％以下Nb：0.005〜0.100％的成分组成的钢板，以及 Ti：0.002〜0.150％，满足{100} <001>取向与{110} <001>取向的X射线随机强度比的和的Ti-48/14×N≥0.0005的关系 具有5或更小的⅙厚度部分的具有{110} <111>与{110} <112>取向基团的X射线随机强度比的最大值之和和X射线随机强度 {211} <111>取向的比例为5以上，并且具有通过静态张力法测定的高轧制方向杨氏模量及其制造方法。

公开(公告)号：US08128763B2

公开(公告)日：2012-03-06

申请号：US12067764

申请日：2006-09-22

申请人： Seong-Ho Han

发明人： Seong-Ho Han

IPC分类号： C22C38/14 ,  C22C38/06 ,  C22C38/04 ,  C21D38/02

CPC分类号： C22C38/04 ,  C21D8/0205 ,  C21D9/46 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  Y10T428/12799

摘要： A cold-rolled steel sheet for outer panels and the like of an automobile body, a galvannealed steel sheet using the cold-rolled steel sheet, and a method for manufacturing the same are disclosed. It is an object of the present invention to provide a high strength cold-rolled steel sheet, which has superior bake hardenability, aging resistance at room temperature and secondary work embrittlement resistance, and a method for manufacturing the same. The steel sheet has a grain size of ASTM No. of 9 or more after annealing, a BH of 30 MPa or more, an AI of 30 MPa or less, and a tensile strength of 340˜390 MPa through appropriate control of solute elements in steel by addition of a small amount of Ti, addition of Al and Mo, and control of manufacturing conditions, and refinement of crystal grains after annealing. The cold-rolled steel sheet and the galvannealed steel sheet produced using the cold-rolled steel sheet have the superior bake hardenability, aging resistance at room temperature, and secondary work embrittlement resistance.

摘要翻译： 公开了一种用于汽车车身外板等的冷轧钢板，使用该冷轧钢板的合金化热浸镀锌钢板及其制造方法。 本发明的目的是提供一种具有优异的烘烤硬化性，室温下的耐老化性和二次加工脆性的高强度冷轧钢板及其制造方法。 退火后的钢板的ASTM No.9以上，BH为30MPa以上，Al为30MPa以下，拉伸强度为340〜390MPa，通过适当控制溶质元素 通过加入少量Ti，添加Al和Mo，并控制制造条件，退火后晶粒细化。 使用冷轧钢板制造的冷轧钢板和合金化热浸镀锌钢板具有优异的烘烤淬透性，室温下的耐老化性和二次加工脆性。

公开(公告)号：US08048238B2

公开(公告)日：2011-11-01

申请号：US12312325

申请日：2007-11-07

申请人： Natsuko Sugiura ,  Naoki Maruyama ,  Manabu Takahashi ,  Yohji Nakamura ,  Koji Hanya

发明人： Natsuko Sugiura ,  Naoki Maruyama ,  Manabu Takahashi ,  Yohji Nakamura ,  Koji Hanya

IPC分类号： C22C38/14 ,  C22C38/12 ,  C21D38/02

摘要： Steel sheet having a composition of ingredients containing substantially, by mass %, C: 0.005 to 0.200%, Si: 2.50% or less, Mn: 0.10 to 3.00%, N: 0.0100% or less, Nb: 0.005 to 0.100%, and Ti: 0.002 to 0.150% and satisfying the relationship of Ti−48/14×N≧0.0005, having a sum of the X-ray random intensity ratios of the {100} orientation and the {110} orientation of a ⅙ sheet thickness part of 5 or less, having a sum of the maximum value of the X-ray random intensity ratios of the {110} to {110} orientation group and the X-ray random intensity ratios of the {211} orientation of 5 or more, and having a high rolling direction Young's modulus measured by the static tension method and a method of production of the same are provided.