公开(公告)号：US09194030B2

公开(公告)日：2015-11-24

申请号：US12989214

申请日：2008-09-01

申请人： Jai Hyun Kwak ,  Kwang Geun Chin

发明人： Jai Hyun Kwak ,  Kwang Geun Chin

IPC分类号： C22C38/02 ,  C21D6/00 ,  C21D8/04 ,  C22C38/00 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/14 ,  C22C38/16 ,  C22C38/54 ,  C22C38/60 ,  C21D8/02 ,  C21D1/673

CPC分类号： C22C38/60 ,  C21D1/673 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473 ,  C21D8/0478 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/002 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/02 ,  C23C2/40

摘要： A high strength thin steel sheet that is mainly used for structural members and inner and outer panels for a vehicle, a galvanized steel sheet, and methods of manufacturing the same. The high strength thin steel sheet for superior press formability includes, by weight percent, 0.06 to 0.4% C, 1.0 to 5.0% Mn, 0.05 to 2.5% Si, 0.01 to 2.0% Ni, 0.02 to 2% Cu, 0.01 to 0.04% Ti, 0.05 to 2.5% Al, 0.005 to 0.1% Sb, 0.0005 to 0.004% B, 0.007% or less N, and balance Fe and inevitable impurities, and meeting relation of Ni+0.5×Mn+0.3×Cu>0.9, which is defined as Ni*, and Al/Ni*

摘要翻译： 主要用于车辆的结构构件和内外板的高强度薄钢板，镀锌钢板及其制造方法。 作为优异的冲压成形性的高强度薄钢板，以重量％计含有0.06〜0.4％C，1.0〜5.0％Mn，0.05〜2.5％Si，0.01〜2.0％Ni，0.02〜2％Cu，0.01〜0.04％ Ti，0.05〜2.5％的Al，0.005〜0.1％的Sb，0.0005〜0.004％的B，0.007％以下的N，余量为Fe和不可避免的杂质，满足Ni + 0.5×Mn + 0.3×Cu> 0.9的关系 同时定义为Ni *，Al / Ni * <1.3，Ti≥0.028×Al的关系。 该薄钢板镀锌或合金化热浸镀锌。

公开(公告)号：US20110030857A1

公开(公告)日：2011-02-10

申请号：US12989214

申请日：2008-09-01

申请人： Jai Hyun Kwak ,  Kwang Geun Chin

发明人： Jai Hyun Kwak ,  Kwang Geun Chin

IPC分类号： C22C38/02 ,  C21D8/02

CPC分类号： C22C38/60 ,  C21D1/673 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473 ,  C21D8/0478 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/002 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/02 ,  C23C2/40

摘要： A high strength thin steel sheet that is mainly used for structural members and inner and outer panels for a vehicle, a galvanized steel sheet, and methods of manufacturing the same. The high strength thin steel sheet for superior press formability includes, by weight percent, 0.06 to 0.4% C, 1.0 to 5.0% Mn, 0.05 to 2.5% Si, 0.01 to 2.0% Ni, 0.02 to 2% Cu, 0.01 to 0.04% Ti, 0.05 to 2.5% Al, 0.005 to 0.1% Sb, 0.0005 to 0.004% B, 0.007% or less N, and balance Fe and inevitable impurities, and meeting relation of Ni+0.5×Mn+0.3×Cu>0.9, which is defined as Ni*, and Al/Ni*

摘要翻译： 主要用于车辆的结构构件和内外板的高强度薄钢板，镀锌钢板及其制造方法。 作为优异的冲压成形性的高强度薄钢板，以重量％计含有0.06〜0.4％C，1.0〜5.0％Mn，0.05〜2.5％Si，0.01〜2.0％Ni，0.02〜2％Cu，0.01〜0.04％ Ti，0.05〜2.5％的Al，0.005〜0.1％的Sb，0.0005〜0.004％的B，0.007％以下的N，余量为Fe和不可避免的杂质，满足Ni + 0.5×Mn + 0.3×Cu> 0.9的关系 同时定义为Ni *，Al / Ni * <1.3，Ti≥0.028×Al的关系。 该薄钢板镀锌或合金化热浸镀锌。

公开(公告)号：US08778097B2

公开(公告)日：2014-07-15

申请号：US12260144

申请日：2008-10-29

申请人： Kwang Geun Chin ,  Jai Hyun Kwak

发明人： Kwang Geun Chin ,  Jai Hyun Kwak

IPC分类号： C22C38/00 ,  C22C38/04 ,  C21D8/02 ,  C22C38/06 ,  C22C38/18 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14

CPC分类号： C22C38/04 ,  C21D9/48 ,  C22C38/06

摘要： A low specific gravity and high strength steel sheet includes C of 0.2% to 0.8%, Mn of 2% to 10%, P of 0.02% or less, S of 0.015% or less, Al of 3% to 15%, and N of 0.01% or less. A ratio of Mn/Al is 0.4 to 1.0. Retained austenite in a structure is included in the range of 1% or more. The steel sheet further includes one or two or more elements selected from the group consisting of Si of 0.1% to 2.0%, Cr of 0.1% to 0.3%, Mo of 0.05% to 0.5%, Ni of 0.1% to 2.0%, Cu of 0.1% to 1.0%, B of 0.0005% to 0.003%, Ti of 0.01% to 0.2%, Zr of 0.005% to 0.2%, Nb of 0.005% to 0.2%, W of 0.1% to 1.0%, Sb of 0.005% to 0.2%, and Ca of 0.001% to 0.2%.

摘要翻译： 低比重和高强度钢板包括C为0.2％至0.8％，Mn为2％至10％，P为0.02％以下，S为0.015％以下，Al为3％〜15％，N为 为0.01％以下。 Mn / Al的比例为0.4〜1.0。 结构中的残留奥氏体包含在1％以上的范围内。 钢板还含有选自0.1％〜2.0％的Si，0.1〜0.3％的Cr，0.05〜0.5％的Mo，0.1〜2.0％的Ni，0.1〜2.0％的Cu， 为0.1〜1.0％，B为0.0005〜0.003％，Ti为0.01〜0.2％，Zr为0.005〜0.2％，Nb为0.005〜0.2％，W为0.1〜1.0％，Sb为0.005 ％至0.2％，Ca为0.001％至0.2％。

公开(公告)号：US20090297387A1

公开(公告)日：2009-12-03

申请号：US12260144

申请日：2008-10-29

申请人： Kwang Geun Chin ,  Jai Hyun Kwak

发明人： Kwang Geun Chin ,  Jai Hyun Kwak

IPC分类号： C22C38/06 ,  C21D8/02 ,  B21B37/74

CPC分类号： C22C38/04 ,  C21D9/48 ,  C22C38/06

摘要： A low specific gravity and high strength steel sheet includes C of 0.2% to 0.8%, Mn of 2% to 10%, P of 0.02% or less, S of 0.015% or less, Al of 3% to 15%, and N of 0.01% or less. A ratio of Mn/Al is 0.4 to 1.0. Retained austenite in a structure is included in the range of 1% or more. The steel sheet further includes one or two or more elements selected from the group consisting of Si of 0.1% to 2.0%, Cr of 0.1% to 0.3%, Mo of 0.05% to 0.5%, Ni of 0.1% to 2.0%, Cu of 0.1% to 1.0%, B of 0.0005% to 0.003%, Ti of 0.01% to 0.2%, Zr of 0.005% to 0.2%, Nb of 0.005% to 0.2%, W of 0.1% to 1.0%, Sb of 0.005% to 0.2%, and Ca of 0.001% to 0.2%.

摘要翻译： 低比重和高强度钢板包括C为0.2％至0.8％，Mn为2％至10％，P为0.02％以下，S为0.015％以下，Al为3％〜15％，N为 为0.01％以下。 Mn / Al的比例为0.4〜1.0。 结构中的残留奥氏体包含在1％以上的范围内。 钢板还含有选自0.1％〜2.0％的Si，0.1〜0.3％的Cr，0.05〜0.5％的Mo，0.1〜2.0％的Ni，0.1〜2.0％的Cu， 为0.1〜1.0％，B为0.0005〜0.003％，Ti为0.01〜0.2％，Zr为0.005〜0.2％，Nb为0.005〜0.2％，W为0.1〜1.0％，Sb为0.005 ％至0.2％，Ca为0.001％至0.2％。

公开(公告)号：US09109273B2

公开(公告)日：2015-08-18

申请号：US12993271

申请日：2008-09-01

申请人： Young Hoon Jin ,  Kwang Geun Chin ,  Seung Bok Lee ,  Jai Hyun Kwak

发明人： Young Hoon Jin ,  Kwang Geun Chin ,  Seung Bok Lee ,  Jai Hyun Kwak

IPC分类号： C21D8/02 ,  C22C38/54 ,  C23C2/28 ,  C22C38/02 ,  C21D6/00 ,  C21D8/04 ,  C22C38/06 ,  C22C38/50 ,  C22C38/58 ,  C22C38/60 ,  C21D1/673

CPC分类号： C22C38/02 ,  C21D1/673 ,  C21D6/005 ,  C21D8/0436 ,  C21D8/0473 ,  C21D8/0478 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/06 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C22C38/60

摘要： A cold rolled steel sheet and a hot dip galvanized steel sheet, which have high strength and elongation, such as a tensile strength of 980 MPa or more and an elongation of 28% or more, and excellent delayed fracture resistance, and manufacturing methods thereof. The cold rolled steel sheet has a composition including 0.05 to 0.3 weight percent C, 0.3 to 1.6 weight percent Si, 4.0 to 7.0 weight percent Mn, 0.5 to 2.0 weight percent Al, 0.01 to 0.1 weight percent Cr, 0.02 to 0.1 weight percent Ni and 0.005 to 0.03 weight percent Ti, 5 to 30 ppm B, 0.01 to 0.03 weight percent Sb, 0.008 weight percent or less S, balance Fe and impurities. The hot dip galvanized steel sheet has a hot dip galvanized layer or a hot dip galvannealed layer on the cold rolled steel sheet.

摘要翻译： 拉伸强度为980MPa以上，伸长率为28％以上，耐延迟断裂性优异的强度和伸长率高的冷轧钢板和热浸镀锌钢板及其制造方法。 冷轧钢板具有以下成分：C：0.05〜0.3重量％，Si：0.3〜1.6重量％，Mn：4.0〜7.0重量％，Al：0.5〜2.0重量％，Cr：0.01〜0.1重量％，Ni：0.02〜 和0.005〜0.03重量％的Ti，5〜30ppm的B，0.01〜0.03重量％的Sb，0.008重量％以下的S，余量的Fe和杂质。 热浸镀锌钢板在冷轧钢板上具有热浸镀锌层或热浸镀锌合金镀层。

公开(公告)号：US20110083774A1

公开(公告)日：2011-04-14

申请号：US12993271

申请日：2008-09-01

申请人： Young Hoon Jin ,  Kwang Geun Ghin ,  Seung Bok Lee ,  Jai Hyun Kwak

发明人： Young Hoon Jin ,  Kwang Geun Ghin ,  Seung Bok Lee ,  Jai Hyun Kwak

IPC分类号： C22C38/54 ,  C23C2/28 ,  C21D8/02

CPC分类号： C22C38/02 ,  C21D1/673 ,  C21D6/005 ,  C21D8/0436 ,  C21D8/0473 ,  C21D8/0478 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/06 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C22C38/60

摘要： A cold rolled steel sheet and a hot dip galvanized steel sheet, which have high strength and elongation, such as a tensile strength of 980 MPa or more and an elongation of 28% or more, and excellent delayed fracture resistance, and manufacturing methods thereof. The cold rolled steel sheet has a composition including 0.05 to 0.3 weight percent C, 0.3 to 1.6 weight percent. Si, 4.0 to 7.0 weight percent Mn, 0.5 to 2.0 weight percent Al, 0.01 to 0.1 weight percent Cr, 0.02 to 0.1 weight percent Ni and 0.005 to 0.03 weight percent Ti, 5 to 30 ppm B, 0.01 to 0.03 weight percent Sb, 0.008 weight percent or less S, balance Fe and impurities. The hot dip galvanized steel sheet has a hot dip galvanized layer or a hot dip galvannealed layer on the cold rolled steel sheet.

摘要翻译： 拉伸强度为980MPa以上，伸长率为28％以上，耐延迟断裂性优异的强度和伸长率高的冷轧钢板和热浸镀锌钢板及其制造方法。 冷轧钢板具有0.05〜0.3重量％的C，0.3〜1.6重量％的组成。 Si，4.0〜7.0重量％Mn，0.5〜2.0重量％Al，0.01〜0.1重量％的Cr，0.02〜0.1重量％的Ni和0.005〜0.03重量％的Ti，5〜30ppm的B，0.01〜0.03重量％的Sb， 0.008重量％以下S，余量Fe和杂质。 热浸镀锌钢板在冷轧钢板上具有热浸镀锌层或热浸镀锌合金镀层。