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1. 发明申请

WO2009084793A1 HIGH MANGANESE COATED STEEL SHEET HAVING HIGH STRENGTH AND DUCTILITY AND MANUFACTURING METHOD THEREOF 审中-公开
标题翻译：具有高强度和高密度的高锰镀层钢板及其制造方法
公开(公告)号：WO2009084793A1
公开(公告)日：2009-07-09
申请号：PCT/KR2008/004536
申请日：2008-08-05
申请人： POSCO , SOHN, Il Ryoung , JEON, Sun Ho , KIM, Gyo Sung , CHIN, Kwang Geun
发明人： SOHN, Il Ryoung , JEON, Sun Ho , KIM, Gyo Sung , CHIN, Kwang Geun
IPC分类号： C22C38/04
CPC分类号： C22C38/06 , C21D6/005 , C21D8/041 , C21D8/0415 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D2211/004 , C22C38/04 , C23C2/02 , C23C2/28
摘要： A method of manufacturing a high manganese plated steel sheet includes a heating step of heating a continuously cast slab at a temperature of 10500C to 13000C, a finish hot rolling step of performing finish hot rolling on the slab at a temperature of 85O0C to 95O0C, a hot rolling and coiling step of performing hot rolling and coiling on the slab at a temperature of 75O0C or less, a pickling step of pickling the slab in a HCl solution having a concentration of 5% to 25% for 20 seconds or more, an annealing step of annealing the slab at a recrystallization temperature of 6000C, and a plating step of immersing the slab into a hot dip galvanizing bath so as to create a plated layer on a surface of the steel sheet.
摘要翻译：制造高锰电镀钢板的方法包括在105℃〜1300℃的温度下对连续铸造的板坯进行加热的加热工序，在板坯上在85℃〜95℃的温度下进行精加工热轧的精加工工序，在750℃以下的温度下在板坯上进行热轧卷绕的热轧卷取工序，将浓度为5〜25％的HCl溶液酸洗20秒以上的酸洗工序，退火在600℃的再结晶温度下退火板坯的步骤，以及将板坯浸入热浸镀锌浴中以在钢板表面上形成镀层的镀层步骤。

2. 发明申请

WO2008078901A9 THE METHOD FOR MANUFACTURING THIN STEEL SHEET FOR DEEP DRAWING HAVING EXCELLENT WORKABILITY 审中-公开
公开(公告)号：WO2008078901A9
公开(公告)日：2008-07-03
申请号：PCT/KR2007/006628
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
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 2 and more excellent workability and galvanizing properties than a thin steel sheet for deep drawing according to the related art.

3. 发明申请

WO2008082146A1 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：WO2008082146A1
公开(公告)日：2008-07-10
申请号：PCT/KR2007/006867
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 1 μ m 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，具有厚度为1λ的氧化物层或更少。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。

4. 发明申请

WO2008078940A1 HIGH MANGANESE HIGH STRENGTH STEEL SHEETS WITH EXCELLENT CRASHWORTHINESS, AND METHOD FOR MANUFACTURING OF IT 审中-公开
标题翻译：具有优异冲击性的高锰钢高强度钢板及其制造方法
公开(公告)号：WO2008078940A1
公开(公告)日：2008-07-03
申请号：PCT/KR2007/006780
申请日：2007-12-24
申请人： POSCO , KIM, Sung Kyu , CHIN, Kwang Geun , SOHN, Il Ryoung
发明人： KIM, Sung Kyu , CHIN, Kwang Geun , SOHN, Il Ryoung
IPC分类号： C22C38/04
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。

5. 发明申请

WO2008078904A1 HIGH STRENGTH STEEL PLATE WITH HIGH MANGANESE HAVING EXCELLENT BURRING WORKABILITY 审中-公开
标题翻译：高强度高强度钢板具有优异的加工性能
公开(公告)号：WO2008078904A1
公开(公告)日：2008-07-03
申请号：PCT/KR2007/006675
申请日：2007-12-20
申请人： POSCO , KIM, Sung Kyu , CHIN, Kwang Geun
发明人： KIM, Sung Kyu , CHIN, Kwang Geun
IPC分类号： C22C38/00
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 D 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 D或更多。高强度钢板由于具有优异的物理性能，例如伸长率，孔扩展性以及强度，因此可用于促进汽车部件的形成。

6. 发明申请

WO2009084795A1 HIGH STRENGTH THIN STEEL SHEET EXCELLING IN WELDABILITY AND PROCESS FOR PRODUCING THE SAME 审中-公开
标题翻译：高强度钢板在焊接性能及其制造方法中的应用
公开(公告)号：WO2009084795A1
公开(公告)日：2009-07-09
申请号：PCT/KR2008/004627
申请日：2008-08-08
申请人： POSCO , KANG, Hee Jae , OH, Jin Keun , CHIN, Kwang Geun , KIM, Jong Sang
发明人： KANG, Hee Jae , OH, Jin Keun , CHIN, Kwang Geun , KIM, Jong Sang
IPC分类号： C22C38/00
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 char¬ acteristic, 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。

7. 发明申请

WO2009142362A1 HIGH STRENGTH STEEL SHEET AND HOT DIP GALVANIZED STEEL SHEET HAVING HIGH DUCTILITY AND EXCELLENT DELAYED FRACTURE RESISTANCE AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：高强度钢板和具有高密度和高延性抗断裂韧性的高双层钢化钢板及其制造方法
公开(公告)号：WO2009142362A1
公开(公告)日：2009-11-26
申请号：PCT/KR2008/005132
申请日：2008-09-01
申请人： POSCO , JIN, Young Hoon , CHIN, Kwang Geun , LEE, Seung Bok , KWAK, Jai Hyun
发明人： JIN, Young Hoon , CHIN, Kwang Geun , LEE, Seung Bok , KWAK, Jai Hyun
IPC分类号： C22C38/04
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 consisting of 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 30ppm 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。冷轧钢板的组成为：0.05〜0.3重量％的Si，0.3〜1.6重量％的Si，4.0〜7.0重量％的Mn，0.5〜2.0重量％的Al，0.01〜0.1重量％的Cr，0.02〜0.1重量％ Ni和0.005〜0.03重量％的Ti，5〜30ppm B，0.01〜0.03重量％Sb，0.008重量％以下S，余量为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。

8. 发明申请

WO2009082078A1 HIGH STRENGTH COLD ROLLED STEEL PLATE AND GALVANIZED STEEL PLATE WITH SUPERIOR WORKABILITY AND METHOD FOR MANUFACTURING THEREOF 审中-公开
标题翻译：高强度冷轧钢板和具有优良工作性能的钢化钢板及其制造方法
公开(公告)号：WO2009082078A1
公开(公告)日：2009-07-02
申请号：PCT/KR2008/004642
申请日：2008-08-08
申请人： POSCO , LEE, Seung Bok , CHIN, Kwang Geun , KANG, Soo Chang , HONG, Young Kwang
发明人： LEE, Seung Bok , CHIN, Kwang Geun , KANG, Soo Chang , HONG, Young Kwang
IPC分类号： C22C38/00
CPC分类号： C22C38/04 , C21D8/0226 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D9/48 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/60
摘要： Provided are a cold rolled steel plate, a galvanized steel plate obtained by galvanizing the cold rolled steel plate, and a manufacturing method thereof. The cold rolled steel plate includes, by weight%, C: 0.04- 0.25%, N: 70 ppm-300 ppm, N-14/27A1 : 70 ppm or more, Mn: 0.2-3.0%, Si: 0.5- 2.0%, P: 0.01-0.1%, Al: 0.005% or less, Sb: 0.001-0.05%, S: 0.02% or less, including Fe and other inevitable impurities for a remainder, and further includes one or two or more components selected from the group consisting of Co: 0.01-1.0%, Mo: 0.005-0.05%, Ti: 0.001-0.1%, Nb: 0.001-0.1%, V: 0.001- 0.1%, and Ca: 0.0001-0.03%. Transformation-induced plasticity can be maintained even during a galvannealing process when a coated steel plate using trans format ion- induced plasticity is manufactured, so that a galvannealed galvanized steel plate having excellent elongation with no reduction in material quality of the steel plate can be produced. Furthermore, formability of the steel plate can be improved.
摘要翻译：提供一种冷轧钢板，通过镀锌冷轧钢板而获得的镀锌钢板及其制造方法。冷轧钢板以重量％计含有C：0.04-0.25％，N：70ppm-300ppm，N-14 / 27A1：70ppm或更多，Mn：0.2-3.0％，Si：0.5-2.0％，P：0.01-0.1％，Al：0.005％以下，Sb：0.001-0.05％，S：0.02％以下，余量中含有Fe等不可避免的杂质，还含有1种或2种以上选自 Co：0.01〜1.0％，Mo：0.005〜0.05％，Ti：0.001-0.1％，Nb：0.001-0.1％，V：0.001〜0.1％，Ca：0.0001-0.03％。当制造使用反式格式离子诱导可塑性的涂覆钢板时，即使在合金化退火过程中也可以保持转变诱导的塑性，从而可以生产出具有优异伸长率并且不会降低钢板材料质量的合金化镀锌钢板。此外，可以提高钢板的成形性。

9. 发明授权

EP2097545B1 HIGH STRENGTH STEEL PLATE WITH HIGH MANGANESE HAVING EXCELLENT BURRING WORKABILITY 有权转让
标题翻译：与杰出ABGRATVERARBEITBARKEIT高MANGA共享高强度钢板
公开(公告)号：EP2097545B1
公开(公告)日：2014-04-09
申请号：EP07851641.6
申请日：2007-12-20
申请人： Posco
发明人： KIM, Sung Kyu , CHIN, Kwang Geun
IPC分类号： C21D9/46 , C22C38/04 , C22C38/06 , C22C38/60
CPC分类号： C22C38/06 , C21D6/005 , C21D8/0226 , C21D8/0247 , C21D9/46 , C21D2211/001 , C22C38/04 , C22C38/60

10. 发明授权

EP2097545B9 HIGH STRENGTH STEEL PLATE WITH HIGH MANGANESE HAVING EXCELLENT BURRING WORKABILITY 有权转让
标题翻译：与杰出ABGRATVERARBEITBARKEIT高MANGA共享高强度钢板
公开(公告)号：EP2097545B9
公开(公告)日：2015-03-11
申请号：EP07851641.6
申请日：2007-12-20
申请人： Posco
发明人： KIM, Sung Kyu , CHIN, Kwang Geun
IPC分类号： C21D9/46 , C22C38/04 , C22C38/06 , C22C38/60
CPC分类号： C22C38/06 , C21D6/005 , C21D8/0226 , C21D8/0247 , C21D9/46 , C21D2211/001 , C22C38/04 , C22C38/60

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