公开(公告)号：US08999085B2

公开(公告)日：2015-04-07

申请号：US12158731

申请日：2006-12-22

申请人： Seong-Ju Kim ,  Kwang-Geun Chin ,  Hyun-Gyu Hwang ,  Sung-Kyu Kim ,  Il-Ryoung Sohn ,  Young-Kook Lee ,  Oh-Yeon Lee

发明人： Seong-Ju Kim ,  Kwang-Geun Chin ,  Hyun-Gyu Hwang ,  Sung-Kyu Kim ,  Il-Ryoung Sohn ,  Young-Kook Lee ,  Oh-Yeon Lee

IPC分类号： C23C14/34 ,  C25D7/00 ,  C25D9/00 ,  C25D11/00 ,  B22D17/00 ,  C21D1/84 ,  C21D5/00 ,  C21D8/04 ,  C21D9/00 ,  C21D8/02 ,  C21D6/00 ,  C21D8/00 ,  C21D6/02 ,  C22C38/02 ,  C21D9/48 ,  C22C38/00 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32

CPC分类号： B62D29/007 ,  B32B15/013 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0226 ,  C21D8/0247 ,  C21D8/04 ,  C21D8/0405 ,  C21D9/48 ,  C21D9/52 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/06 ,  C25D7/0614 ,  Y10T428/12799

摘要： A high-ductility, high-strength and high Mn steel strip used for steel strips of automobiles requiring superior formability and high strength, a plated steel strip produced by using the same, and a manufacturing method thereof are disclosed. The high Mn steel strip comprises, by weight %, 0.2˜1.5% of C, 10˜25% of Mn, 0.01˜3.0% of Al, 0.005˜2.0% of Si, 0.03% or less of P, 0.03% or less of S, 0.040% or less of N, and the balance of Fe and other unavoidable impurities. The high-ductility, high-strength and high Mn steel strip, and the plated steel strip produced by using the same have superior surface properties and plating characteristics.

摘要翻译： 公开了一种用于需要优异成形性和高强度的汽车用钢带的高延展性，高强度和高Mn钢带，使用该钢带制造的镀覆钢带及其制造方法。 高Mn钢带以重量％计含有0.2〜1.5％的C，10〜25％的Mn，0.01〜3.0％的Al，0.005〜2.0％的Si，0.03％以下的P，0.03％以下 的S，0.040％以下的N，余量为Fe等不可避免的杂质。 高延展性，高强度和高Mn钢带以及使用该钢带的电镀钢带具有优异的表面性能和电镀特性。

公开(公告)号：US20140209216A1

公开(公告)日：2014-07-31

申请号：US14240943

申请日：2012-08-23

申请人： Kwang-Geun Chin ,  Sun-Ho Jeon

发明人： Kwang-Geun Chin ,  Sun-Ho Jeon

IPC分类号： C22C38/58 ,  C22C38/54 ,  C22C38/50 ,  C22C38/38 ,  C22C38/34 ,  C22C38/00 ,  C22C38/28 ,  C22C38/14 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C23C2/02 ,  C22C38/32

摘要： The present invention relates to high-manganese steel with superior weldability and to a method for manufacturing hot-dipped galvanized steel sheets from same. The high-manganese steel according to one aspect of the present invention is characterized by comprising, by weight %: C: 0.3-1%; Mn: 8-25%; Al: 1-8%; Si: 0.1-3.0%; Ti: 0.01-0.2%; Sn: 0.06-0.2%; and B: 0.0005-0.01%, with the remainder being Fe and unavoidable impurities. The present invention may provide high-manganese hot-dipped galvanized steel sheets, having high strength and processability and superior surface quality, which can prevent plating failures caused by manganese.

摘要翻译： 本发明涉及具有优良焊接性的高锰钢及其制造方法。 根据本发明的一个方面的高锰钢的特征在于，以重量％计含有：C：0.3-1％ Mn：8-25％; Al：1-8％ Si：0.1-3.0％; Ti：0.01-0.2％; Sn：0.06-0.2％; 和B：0.0005-0.01％，其余为Fe和不可避免的杂质。 本发明可以提供具有高强度，加工性和优异表面质量的高锰热镀锌钢板，可以防止由锰引起的电镀故障。

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：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：US20080185077A1

公开(公告)日：2008-08-07

申请号：US11913174

申请日：2006-05-03

申请人： Jeong-Bong Yoon ,  Jin-Hee Chung ,  Kwang-Geun Chin ,  Sang-Ho Han ,  Sung-Il Kim ,  Ho-Seok Kim

发明人： Jeong-Bong Yoon ,  Jin-Hee Chung ,  Kwang-Geun Chin ,  Sang-Ho Han ,  Sung-Il Kim ,  Ho-Seok Kim

IPC分类号： C22C38/16 ,  C21D7/02 ,  C21D8/02 ,  C21D7/13

CPC分类号： C21D8/0426 ,  C21D8/0436 ,  C21D8/0463 ,  C21D8/0473 ,  C21D9/48 ,  C21D2211/004 ,  C22C38/16

摘要： Disclosed herein is a Nb—Ti composite IF steel in which fine precipitates, such as CuS precipitates, having a size of 0.2 μm or less are distributed. The distribution of fine precipitates in the Nb—Ti composite IF steel enhances the yield strength and lowers the in-plane anisotropy index. The nanometer-sized precipitates allow the formation of minute crystal grains. As a result, dissolved carbon is present in a larger amount in the crystal grain boundaries than within the crystal grains, which is advantageous in terms of room-temperature non-aging properties and bake hardenability.

摘要翻译： 本发明公开了分散有0.2μm以下的微细析出物，例如CuS析出物的Nb-Ti复合IF钢。 Nb-Ti复合IF钢中微细析出物的分布提高了屈服强度，降低了面内各向异性指数。 纳米尺寸的析出物允许形成微小的晶粒。 结果，溶解碳比晶粒内的晶粒边界更多地存在，这在室温非时效性和烘烤淬透性方面是有利的。

公开(公告)号：US20080149230A1

公开(公告)日：2008-06-26

申请号：US11913176

申请日：2006-05-03

申请人： Jeong-Bong Yoon ,  Sang-Ho Han ,  Sung-Il Kim ,  Man-Young Park ,  Kwang-Geun Chin ,  Ho-Seok Kim ,  Jin-Hee Chung

发明人： Jeong-Bong Yoon ,  Sang-Ho Han ,  Sung-Il Kim ,  Man-Young Park ,  Kwang-Geun Chin ,  Ho-Seok Kim ,  Jin-Hee Chung

IPC分类号： C21D8/02 ,  C22C38/16

CPC分类号： C22C38/004 ,  C21D8/02 ,  C21D8/04 ,  C21D9/46 ,  C22C38/002 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/16 ,  C22C38/60

摘要： Disclosed herein is a Ti-based IF steel in which fine precipitates, such as CuS precipitates, having a size of 0.2 μm or less are distributed. The distribution of fine precipitates in the Ti-based IF steel enhances the yield strength and lowers the in-plane anisotropy index. The nanometer-sized precipitates allow the formation of minute crystal grains. As a result, dissolved carbon is present in a larger amount in the crystal grain boundaries than within the crystal grains, which is advantageous in terms of room-temperature non-aging properties and bake hardenability.

摘要翻译： 本发明公开了分散有0.2μm以下的微细析出物，例如CuS析出物的Ti系IF钢。 Ti型IF钢中微细析出物的分布提高了屈服强度，降低了面内各向异性指数。 纳米尺寸的析出物允许形成微小的晶粒。 结果，溶解碳比晶粒内的晶粒边界更多地存在，这在室温非时效性和烘烤淬透性方面是有利的。

公开(公告)号：US20070181232A1

公开(公告)日：2007-08-09

申请号：US10594140

申请日：2005-03-22

申请人： Seong-Ho Han ,  Tae-Kyu Kim ,  Sang-Ho Han ,  San-Kyung Ko ,  Kwang-Geun Chin ,  Hee-Jae Kang

发明人： Seong-Ho Han ,  Tae-Kyu Kim ,  Sang-Ho Han ,  San-Kyung Ko ,  Kwang-Geun Chin ,  Hee-Jae Kang

IPC分类号： C21D8/02 ,  C22C38/00

CPC分类号： C22C38/02 ,  C21D9/46 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12

摘要： Disclosed herein are a bake-hardenable high-strength cold-rolled steel sheet, a hot-dipped steel sheet thereof, and a method for manufacturing the same. The steel sheet comprises 0.0016˜0.01% of C; 0.1% or less of Si; 0.2˜1.5% of Mn; 0.05˜0.15% of P; 0.01% or less of S; 0.08˜0.5% of (soluble) Al; 0.0025% or less of N; 0.003˜0.1% of Nb; 0.003% of less of Ti; 0.01˜0.4% of Mo; 0.0005˜0.005% of B; and the balance of Fe and other unavoidable impurities, in terms of weight %. The steel sheet has fine AlN precipitates, and a grain size (ASTM No.) of 9 or more. The AlN precipitates have a grain size, which can suppress grain growth. The steel sheet has enhanced strength, bake hardenability, aging resistance, and secondary work embrittlement resistance.

摘要翻译： 本发明公开了一种可烘烤硬化性高强度冷轧钢板，其热浸镀钢板及其制造方法。 该钢板含有0.0016〜0.01％的C; 0.1％以下的Si; 0.2〜1.5％的Mn; 0.05〜0.15％P; 0.01％以下的S; 0.08〜0.5％（可溶）Al; 0.0025％以下N; 0.003〜0.1％的Nb; 0.003％以下的Ti; 0.01〜0.4％Mo; 0.0005〜0.005％B; 余量为Fe等不可避免的杂质，以重量％计。 钢板具有细小的AlN析出物，粒径（ASTM No.）为9以上。 AlN析出物具有粒度，可抑制晶粒生长。 钢板具有增强的强度，烘烤硬化性，耐老化性和二次加工脆性。

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％。