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

WO2008078901A1 THE METHOD FOR MANUFACTURING THIN STEEL SHEET FOR DEEP DRAWING HAVING EXCELLENT WORKABILITY 审中-公开
标题翻译：制造具有良好工作性能的深层薄钢板的方法
公开(公告)号：WO2008078901A1
公开(公告)日：2008-07-03
申请号：PCT/KR2007006628
申请日：2007-12-18
申请人： POSCO , KANG HEE JAE , CHIN KWANG GEUN , SOHN IL RYOUNG
发明人： KANG HEE JAE , CHIN KWANG GEUN , SOHN IL RYOUNG
IPC分类号： C21D8/02
CPC分类号： C21D9/48 , C21D8/0426 , C21D8/0436 , C21D8/0463 , C21D8/0473 , C23C2/02 , C23C2/06 , C23C2/28
摘要： There is provided a method for manufacturing a thin steel sheet for deep drawing having excellent workability that is generally used for inner and outer panels of an automobile body. A method includes reheating steel slabs containing, by weight%, C: 0.010% or less, Si: 0.4% or less, Mn: 0.06-1.5%, P: 0.03-0.15%, S: 0.020% or less, Sol. Al: 0.40% or less, N: 0.010% or less, Ti: 0.003-0.05%, Nb: 0.003-0.05%, Mo: 0.10% or less, B: 0.0002-0.0030%, one or both of Sb: 0.005-0.10% and Sn: 0.005-0.10%, the balance Fe, and unavoidable impurities, completing finish rolling the reheated steel slabs at the single phase austenite region while a reduction ratio of rough rolling and finish rolling is in the range of 1.0 (50%:50%)-4.0 (80%:20%), and strip- cooling rate of final three pass is 30°C/sec or more during finish rolling, coiling the finish rolled steel sheet, cold rolling the coiled hot-rolled steel sheet at a cold rolling reduction ratio of 60% or more, and continuously annealing the cold-rolled steel sheet at a temperature of a range of 780-8600C, in which the average size of precipitates satisfies 20-60 nm. As described above, according to the embodiment of the present invention, it is possible to provide a thin steel sheet for deep drawing having tensile strength of 28-50 kg/mm and more excellent workability and galvanizing properties than a thin steel sheet for deep drawing according to the related art.
摘要翻译：提供一种用于制造用于深冲压的薄钢板的方法，该方法通常用于汽车车身的内外板。一种方法包括以重量％计含有C：0.010％以下，Si：0.4％以下，Mn：0.06〜1.5％，P：0.03〜0.15％，S：0.020％以下的钢坯。 Al：0.40％以下，N：0.010％以下，Ti：0.003〜0.05％，Nb：0.003〜0.05％，Mo：0.10％以下，B：0.0002〜0.0030％，Sb：0.005〜 0.10％，Sn：0.005〜0.10％，余量为Fe和不可避免的杂质，在单相奥氏体区域中完成对再热钢坯的精轧，而粗轧和精轧的压下率在1.0（50％：50％） - 4.0（80％：20％），最终三遍的剥离冷却速度在精轧过程中为30℃/秒以上，卷取精轧钢板，冷轧卷取的热轧钢在冷轧压下率为60％以上的条件下，在780〜8600℃的范围内连续退火冷却钢板，其中析出物的平均粒径为20〜60nm。如上所述，根据本发明的实施方式，能够提供拉伸强度为28〜50kg / mm的深拉伸用薄钢板和与深冲的薄钢板相比具有更优异的加工性和镀锌性根据现有技术。

2. 发明申请

WO2008082146A9 HIGH STRENGTH ZN-COATED STEEL SHEET HAVING EXCELLENT MECHANICAL PROPERITES AND SURFACE QUALITY AND THE METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：具有优异机械性能和表面质量的高强度ZN涂层钢板及其制造方法
公开(公告)号：WO2008082146A9
公开(公告)日：2008-10-23
申请号：PCT/KR2007006867
申请日：2007-12-27
申请人： POSCO , SOHN IL RYOUNG , KANG HEE JAE , CHIN KWANG GEUN
发明人： SOHN IL RYOUNG , KANG HEE JAE , CHIN KWANG GEUN
IPC分类号： C22C38/00
CPC分类号： C22C38/02 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D8/0478 , C21D9/48 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/60 , C23C28/04
摘要： There is provided a high strength Zn-coated steel sheet having excellent mechanical properties and surface quality, which is mainly used for inner and outer panels and structural parts of a vehicle. The steel sheet having excellent mechanical properties and surface quality includes, by weight: 0.01 to 0.2% C, 0.01 to 1.5% Si, 0.2 to 4.0% Mn, 0.001 to 0.1% P, =0.03% S, 0.01 to 1.5% Al, 0.001 to 0.03% N, 0.0002 to 0.005% B, 0.01 to 2.0% Cr, 0.005 to 0.5% Mo, 0.005 to 0.1% Sb, and the balance of Fe and unavoidable impurities, the steel sheet satisfying a relation of 5=(7Mn+4Si+2Al+18B)/(4C+3P+20Sb)=18 and having an oxide layer with a thickness of 1µm or less on a surface thereof. According to the present invention, a high-strength dual phase steel having excellent mechanical properties and surface quality can be manufactured.
摘要翻译：提供了一种主要用于车辆的内外板和结构件的机械性能和表面质量优异的高强度Zn镀层钢板。具有优异的机械性能和表面质量的钢板包括：0.01〜0.2％的C，0.01〜1.5％的Si，0.2〜4.0％的Mn，0.001〜0.1％的P，= 0.03％的S，0.01〜1.5％的Al， 0.001〜0.03％N，0.0002〜0.005％B，0.01〜2.0％Cr，0.005〜0.5％Mo，0.005〜0.1％Sb，余量为Fe和不可避免的杂质，满足关系5 =（7Mn + 4Si + 2Al + 18B）/（4C + 3P + 20Sb）= 18，并且在其表面上具有厚度为1μm以下的氧化物层。根据本发明，可以制造具有优异的机械性能和表面质量的高强度双相钢。

3. 发明申请

WO2008078912A9 ZN-COATED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND THE METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：具有优异表面质量的ZN涂覆钢板及其制造方法
公开(公告)号：WO2008078912A9
公开(公告)日：2008-10-23
申请号：PCT/KR2007006716
申请日：2007-12-21
申请人： POSCO , SOHN IL RYOUNG , LEE SEUNG BOK , JIN KWANG GEUN
发明人： SOHN IL RYOUNG , LEE SEUNG BOK , JIN KWANG GEUN
IPC分类号： C22C38/00
CPC分类号： C22C38/02 , C22C38/002 , C22C38/04 , C22C38/06
摘要： There is provided a Zn-coated steel sheet with excellent surface quality, which is generally used for inner and outer panels for automobiles. The Zn-coated steel sheet includes, by weight percent, C: 0.04 to 0.25%, Mn: 0.2 to 2.5%, Si: 0.01 to 1.7%, Al: 0.01 to 1.5%, P: 0.01 to 0.1%, S: 0.02% or less, and Sb: 0.001 to 0.1%, residual Fe, and unavoidable impurities, wherein the Si and Al satisfy 0.5
摘要翻译：提供一种具有优异表面质量的镀Zn钢板，其通常用于汽车的内部和外部面板。 Zn镀层钢板以重量百分比计含有C：0.04〜0.25％，Mn：0.2〜2.5％，Si：0.01〜1.7％，Al：0.01〜1.5％，P：0.01〜0.1％，S：0.02 以下，Sb：0.001〜0.1％，残留Fe及不可避免的杂质，其中Si和Al满足0.5

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