公开(公告)号：US08052924B2

公开(公告)日：2011-11-08

申请号：US12298935

申请日：2007-12-20

申请人： Sung Kyu Kim ,  Kwang Geun Chin

发明人： Sung Kyu Kim ,  Kwang Geun Chin

IPC分类号： C22C38/04

CPC分类号： C22C38/06 ,  C21D6/005 ,  C21D8/0226 ,  C21D8/0247 ,  C21D9/46 ,  C21D2211/001 ,  C22C38/04 ,  C22C38/60

摘要： There is provided a high strength steel plate with high manganese having excellent burring workability, which is used for structural members, bumper reinforcing materials and impact absorbing materials of automobiles, etc. The high strength steel plate includes, by weight: C: 0.2 to 1.0%, Mn: 10 to 25%, Al: 0.3 to 3.0%, S: 0.05% or less, P: 0.05% or less, and the balance of Fe and inevitable impurities, wherein the chemical elements satisfactorily have a grain size of 18 μm or more. The high strength steel plate can be useful to facilitate formation of automobile parts since it has excellent physical properties such as elongation and hole expansibility as well as strength.

摘要翻译： 本发明提供一种高强度钢板，其具有优良的加工性能，用于结构件，保险杠加强材料和汽车的冲击吸收材料等。高强度钢板包括：C：0.2至1.0 ％，Mn：10〜25％，Al：0.3〜3.0％，S：0.05％以下，P：0.05％以下，余量由Fe和不可避免的杂质构成，其中化学元素满意度为18 μm以上。 高强度钢板由于具有优异的物理性能，例如伸长率，孔膨胀性以及强度，因此可用于促进汽车部件的形成。

公开(公告)号：US20090317284A1

公开(公告)日：2009-12-24

申请号：US12298935

申请日：2007-12-20

申请人： Sung Kyu Kim ,  Kwang Geun Chin

发明人： Sung Kyu Kim ,  Kwang Geun Chin

IPC分类号： C22C38/04

CPC分类号： C22C38/06 ,  C21D6/005 ,  C21D8/0226 ,  C21D8/0247 ,  C21D9/46 ,  C21D2211/001 ,  C22C38/04 ,  C22C38/60

摘要： There is provided a high strength steel plate with high manganese having excellent burring workability, which is used for structural members, bumper reinforcing materials and impact absorbing materials of automobiles, etc. The high strength steel plate includes, by weight: C: 0.2 to 1.0%, Mn: 10 to 25%, Al: 0.3 to 3.0%, S: 0.05% or less, P: 0.05% or less, and the balance of Fe and inevitable impurities, wherein the chemical elements satisfactorily have a grain size of 18 μm or more. The high strength steel plate can be useful to facilitate formation of automobile parts since it has excellent physical properties such as elongation and hole expansibility as well as strength.

摘要翻译： 本发明提供一种高强度钢板，其具有优良的加工性能，用于结构件，保险杠加强材料和汽车的冲击吸收材料等。高强度钢板包括：C：0.2至1.0 ％，Mn：10〜25％，Al：0.3〜3.0％，S：0.05％以下，P：0.05％以下，余量由Fe和不可避免的杂质构成，其中化学元素满意度为18 妈妈还是更多 高强度钢板由于具有优异的物理性能，例如伸长率，孔膨胀性以及强度，因此可用于促进汽车部件的形成。

公开(公告)号：US20090074605A1

公开(公告)日：2009-03-19

申请号：US12298959

申请日：2007-12-24

申请人： Sung Kyu Kim ,  Kwang Geun Chin ,  Il-Ryoung Sohn

发明人： Sung Kyu Kim ,  Kwang Geun Chin ,  Il-Ryoung Sohn

IPC分类号： C22C38/04 ,  C21D8/02 ,  B21B1/00

CPC分类号： C22C38/04 ,  C22C38/06

摘要： There are provided a high-workability high strength steel sheet with excellent workability due to the high elongation and excellent crashworthiness due to the high yield strength, and a method for manufacturing of it. The high manganese steel sheet includes, by weight: carbon (C): 0.2 to 1.5%, manganese (Mn): 10 to 25%, aluminum (Al): 0.01 to 3.0%, phosphorus (P) 0.03% or less, sulfur (S): 0.03% or less, nitrogen (N): 0.040% or less, at least one selected from the group consisting of silicon (Si): 0.02 to 2.5%, titanium (Ti): 0.01 to 0.10% and niobium (Nb): 0.01 to 0.10%, and the balance of Fe and other inevitable impurities. The high manganese steel sheet may be a hot-rolled steel sheet, a cold-rolled steel sheet, or a plated steel sheet, and is suitable for elaborate internal sheets as well as structural members of a car body since it has press workability due to the high elongation and high strain hardening index. Also, the high manganese steel sheet may be used for parts such as a front side member of an automobile since, among its characteristics, the steel sheet has an excellent impact absorbing ability.

摘要翻译： 提供了由于高屈服强度而由于高伸长率和优异的耐冲击性而具有优异的可加工性的高加工性高强度钢板及其制造方法。 高锰钢板包括：碳（C）：0.2〜1.5％，锰（Mn）：10〜25％，铝（Al）：0.01〜3.0％，磷（P）0.03％以下，硫 （S）：0.03％以下，氮（N）：0.040％以下，选自硅（Si）：0.02〜2.5％，钛（Ti）：0.01〜0.10％和铌（ Nb）：0.01〜0.10％，余量为Fe等不可避免的杂质。 高锰钢板可以是热轧钢板，冷轧钢板或镀覆钢板，并且适用于精密的内部板材以及车身的结构构件，因为它具有由于 高伸长率和高应变硬化指数。 此外，高锰钢板也可以用于汽车的前侧部件等部件，因为其特征在于具有优异的冲击吸收能力。

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：US20110017363A1

公开(公告)日：2011-01-27

申请号：US12810852

申请日：2008-08-08

申请人： Hee Jae Kang ,  Jin Keun Oh ,  Kwang Geun Chin ,  Jong Sang Kim

发明人： Hee Jae Kang ,  Jin Keun Oh ,  Kwang Geun Chin ,  Jong Sang Kim

IPC分类号： C21D8/02 ,  C22C38/12 ,  C22C38/14

CPC分类号： C22C38/38 ,  C22C38/06 ,  C22C38/32 ,  C22C38/60

摘要： Provided are a high strength thin steel sheet having tensile strength of about 800 MPa or more, and a manufacturing method thereof. The thin steel sheet is mainly used for construction materials, home appliances, and automobiles. The thin steel sheet has excellent plating characteristic, welding characteristic, bending workability, and hole expansion ratio. The thin steel sheet includes, in weight %, C: 0.02-0.20%, Si: 1.5% or less, Mn: 1.5-3.0%, P: 0.001-0.10%, S: 0.010% or less, SoLAl: 0.01-0.40%, N: 0.020% or less, Cr: 0.3-1.5%, B: 0.0010-0.0060%, Sb: 0.001-0.10%, and including at least one material selected from the group consisting of Ti: 0.003-0.08%, Nb: 0.003-0.08%, and Mo: 0.003-0.08%, and includes Fe and other inevitable impurities as a remainder. Here, Si, Mn, B, Sb, P, and S meet conditions of 5

摘要翻译： 本发明提供一种拉伸强度为约800MPa以上的高强度薄钢板及其制造方法。 薄钢板主要用于建筑材料，家用电器和汽车。 薄钢板具有优异的电镀特性，焊接特性，弯曲加工性和孔膨胀率。 该薄钢板以重量％计含有C：0.02-0.20％，Si：1.5％以下，Mn：1.5-3.0％，P：0.001-0.10％，S：0.010％以下，SoLAl：0.01-0.40 ％，N：0.020％以下，Cr：0.3〜1.5％，B：0.0010〜0.0060％，Sb：0.001-0.10％，并且包括选自Ti：0.003-0.08％，Nb ：0.003-0.08％，Mo：0.003-0.08％，其余为Fe等不可避免的杂质。 这里，Si，Mn，B，Sb，P和S满足5 <（Si / Mn + 150B）/ Sb <20和C + Mn / 20 + Si / 30 + 2P + 4S <0.27的条件。 此外，制造方法可以确保薄钢板的可加工性。

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。