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1. 发明公开

EP2660345A4 STEEL SHEET HAVING ENHANCED DUCTILITY FOR A MOLDING MEMBER, MOLDING MEMBER, AND METHOD FOR MANUFACTURING SAME 有权转让
标题翻译：具有改进的延性，用于制造成型，成型加工钢材
公开(公告)号：EP2660345A4
公开(公告)日：2017-05-17
申请号：EP11852379
申请日：2011-12-14
申请人： POSCO
发明人： OH JIN-KEUN , KWAK JAI-HYUN , CHO YEOL-RAE , KIM KI-SOO
IPC分类号： C22C38/00 , B32B15/01 , C21D1/18 , C21D1/673 , C21D8/00 , C21D8/02 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/34 , C22C38/38 , C22C38/60 , C23C2/06 , C23C2/12
CPC分类号： C21D8/005 , B32B15/012 , B32B15/013 , C21D1/18 , C21D1/673 , C21D8/0205 , C21D9/46 , C21D2211/001 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/34 , C22C38/38 , C22C38/60 , C23C2/06 , C23C2/12 , Y10T428/12049 , Y10T428/12757 , Y10T428/12799 , Y10T428/12972 , Y10T428/31678
摘要： The present invention relates to a steel sheet for a formed member having enhanced ductility, a formed member, and a method for manufacturing the formed member, and more particularly, to a steel sheet for making a formed member having high strength and ductility such as an automotive structural member and a reinforcing member, a formed member, and a method for manufacturing the formed member. The steel sheet for a formed member has enhanced ductility, and includes, by weight%, C: 0.1% to 1.0%, Si+Al: 0.4% to 3.0%, Mn: 0.1% to 5.0%, P: 0.0001% to 0.1%, S: 0.0001% to 0.03%, N: 0.03% or less (but not 0%), and the balance of Fe and inevitable impurities. The formed member having high strength and ductility that can be used for forming an automotive structural member, a reinforcing member, etc. In addition, the formed member can be used for a heat-treatable impact resistant member.
摘要翻译：本发明涉及一种罐用钢板的成型体具有增强的延展性，所形成的构件，以及用于制造成形部件的方法，并且更具体地，涉及在钢板用于制造具有高的强度和延展性的成型体：如汽车结构部件和增强部件，形成的构件，以及用于制造该成型部件的方法。所述钢板的成型体具有增强的延展性，并且包括按重量％计，C：0.1％至1.0％以下，Si +的Al：0.4％〜3.0％以下，Mn：0.1％〜5.0％，P：0.0001〜0.1 ％，S：0.0001％至0.03％，N：0.03％以下（但不为0％），和Fe和不可避免的杂质的余额。具有高强度和延展性所形成的构件也可用于汽车结构构件，加固构件，等等。另外的形成，所形成的构件，可用于可热处理的耐冲击构件。

2. 发明公开

EP2778247A4 STEEL SHEET FOR HOT PRESS FORMING, HOT PRESS FORMING MEMBER, AND MANUFACTURING METHOD THEREOF 审中-公开
标题翻译：钢热作模具，热压表单元素及其制造方法
公开(公告)号：EP2778247A4
公开(公告)日：2015-08-12
申请号：EP12847953
申请日：2012-11-05
申请人： POSCO
发明人： OH JIN-KEUN , LEE KYOO-YOUNG , CHO YEOL-RAE , CHOI EUL-YONG , KIM KI-SOO
IPC分类号： C22C38/04 , B21B1/04 , B21B15/00 , C21D6/00 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/38 , C22C38/58 , C22C38/60 , C23C2/02 , C23C2/06 , C23C2/12
CPC分类号： C22C38/38 , B21B1/04 , B21B15/00 , B21B2015/0057 , C21D6/005 , C21D7/13 , C21D8/02 , C21D8/0226 , C21D8/0463 , C21D8/0473 , C21D8/0478 , C21D9/46 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/58 , C22C38/60 , C23C2/02 , C23C2/06 , C23C2/12
摘要： Provided are a steel sheet for warm press forming that can have high strength, good elongation, and thus improved crashworthiness after being warm pressed, and a warm-pressed member formed of the steel sheet, and manufacturing methods thereof. The steel sheet for warm press forming includes, by weight%, C: 0.01% to 0.5%, Si: 3.0% or less (excluding 0%), Mn: 3% to 15%, P: 0.0001% to 0.1%, S: 0.0001% to 0.03%, A1: 3.0% or less (excluding 0%), N: 0.03% or less (excluding 0%), and the balance of Fe and inevitable impurities.

3. 发明公开

EP2733228A4 HOT PRESS FORMING STEEL PLATE, FORMED MEMBER USING SAME, AND METHOD FOR MANUFACTURING THE PLATE AND MEMBER 有权转让
标题翻译：热压成型钢板THEREOF型元件及其制造方法板和元素
公开(公告)号：EP2733228A4
公开(公告)日：2015-08-12
申请号：EP11869574
申请日：2011-07-15
申请人： POSCO
发明人： LEE KYOO-YOUNG , OH JIN-KEUN , KIM JONG-SANG , HAN TAE-KYO
IPC分类号： C22C38/00 , B21B3/00 , C21D8/02 , C21D9/46 , C22C38/58 , C23C2/04
CPC分类号： C22C38/38 , B21B1/026 , B21C47/26 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0273 , C21D9/46 , C21D2211/001 , C21D2211/002 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/22 , C22C38/28 , C22C38/32 , C22C38/34 , C23C2/02 , C23C2/06 , C23C2/12 , Y10T428/12757 , Y10T428/12799
摘要： The present invention relates to a hot press forming steel plate made of a composition comprising: 0.3-1.0 wt % of C; 0.01-4.0 wt % of Mn; 1.0-2.0 wt % of Si; 0.01-2.0 wt % of Al; 0.015 wt % or less of S; 0.01 wt % or less of N; and the remainder being Fe and unavoidable impurities. Further, the present invention relates to a method for manufacturing the hot press forming steel plate, characterized by comprising the steps of: heating, to between 1100 and 1300°C, a steel slab having the composition; performing hot rolling finishing between an Ar3 transformation point and 950°C; and performing winding between MS and 720°C. Further, the present invention relates to a hot press formed member characterized by having the composition, and having a dual phase microstructure made of bainite and residual austenite. In addition, the present invention relates to a method for manufacturing the hot press formed member, characterized by comprising the steps of: heating the steel plate having the composition to a temperature of an Ac3 point or higher; hot press molding the heated steel plate; performing cooling at a cooling speed of 20°C/sec or higher to a temperature between MS and 550°C; and performing a heat treatment in a heating furnace between MS and 550°C.

4. 发明公开

EP3239338A4 HOT PRESS FORMED PARTS HAVING EXCELLENT BENDING PROPERTIES AND METHOD FOR MANUFACTURING SAME 有权转让
公开(公告)号：EP3239338A4
公开(公告)日：2018-01-24
申请号：EP15873409
申请日：2015-04-29
申请人： POSCO
发明人： OH JIN-KEUN , CHO YEOL-RAE , KIM SEONG-WOO
IPC分类号： C22C38/38 , B32B15/01 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32 , C23C2/12 , C23C2/28 , C23C2/40
CPC分类号： C21D9/46 , B32B15/012 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D8/0284 , C21D2211/004 , C21D2211/005 , C22C21/02 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32 , C23C2/12 , C23C2/28 , C23C2/40
摘要： Provided are hot press formed (HPF) parts having excellent bending properties and a method for manufacturing same. The present invention relates to an HPF part having excellent bending properties, the HPF part having a hot-dip aluminum plated layer formed on a surface of a base steel sheet, wherein the base steel sheet includes, in terms of wt%, 0.18-0.25% of C, 0.1-0.5% of Si,0.9-1.5% of Mn, 0.03% or less of P, 0.01% or less of S, 0.01-0.05% of Al, 0.05-0.5% of Cr, 0.01-0.05% of Ti, 0.001-0.005% of B, 0.009% or less of N, the balance Fe and other impurities; a ferrite phase having a thickness within 50 µ m is continuously or discontinuously formed inside a surface portion of the base steel sheet; the fraction of the surface portion occupied by the ferrite phase is 5% or less; and carbide materials having a size of 1 µ m or less are scattered and distributed in the surface portion of the base steel sheet so as to occupy 90% or more of the overall carbide distribution.

5. 发明公开

EP3088552A4 STEEL SHEET FOR HOT PRESS FORMED PRODUCT HAVING SUPERIOR BENDABILITY AND ULTRA-HIGH STRENGTH, HOT PRESS FORMED PRODUCT USING SAME, AND METHOD FOR MANUFACTURING SAME 有权转让
标题翻译：钢，具有出色的灵活性和超高强度热压成型产品中，热压成形的产品，和方法及其生产
公开(公告)号：EP3088552A4
公开(公告)日：2017-01-25
申请号：EP14875336
申请日：2014-12-22
申请人： POSCO
发明人： CHO YEOL-RAE , LEE JAE-HOON , OH JIN-KEUN , MIN SIM-KUN , CHOI CHANG-SIG
IPC分类号： C22C38/00 , B21B3/00 , C21D8/02 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/28 , C22C38/32 , C22C38/42 , C22C38/44 , C22C38/50 , C22C38/54
CPC分类号： C21D9/46 , C21D7/13 , C21D8/02 , C21D8/0205 , C21D8/0263 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/28 , C22C38/32 , C22C38/42 , C22C38/44 , C22C38/50 , C22C38/54
摘要： The present invention provides: a steel sheet capable of manufacturing a formed product having superior bendability and ultra-high strength when compared with conventional steel sheets for manufacturing a hot press formed product; the formed product having superior bendability and ultra-high strength by using the same; and a method for manufacturing the same.
摘要翻译：本发明提供了：钢板能够制造形成了具有优异的弯曲性和超高强度的产品的当与常规钢板用于制造热压成形品相比; 具有优异的弯曲加工性，并通过使用相同的超高强度的成形品; 及其制造方法。

6. 发明公开

EP2520686A4 ZINC-PLATED STEEL SHEET FOR HOT PRESSING HAVING OUTSTANDING SURFACE CHARACTERISTICS, HOT-PRESSED MOULDED PARTS OBTAINED USING THE SAME, AND A PRODUCTION METHOD FOR THE SAME 有权转让
标题翻译： VERZINKTES STAHLBLECH ZUR HEISSPRESSUNG MIT AUSGEZEICHNETENOBERFLÄCHENEIGENSCHAFTEN，DAMIT ERHALTENE HEISSGEPRESSTE FORMTEILE UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2520686A4
公开(公告)日：2017-08-30
申请号：EP10841224
申请日：2010-12-28
申请人： POSCO
发明人： SOHN IL-RYOUNG , KIM JONG-SANG , PARK JOONG-CHUL , CHO YEOL-RAE , OH JIN-KEUN , CHO HAN-GU , CHUNG BONG-HOON , LEE JONG-SEOG
IPC分类号： C23C8/10 , C22C38/00 , C22C38/04 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40
CPC分类号： C23C2/28 , C22C38/001 , C22C38/04 , C23C2/02 , C23C2/06 , C23C2/40 , C23C8/10 , Y10T428/12799 , Y10T428/12917 , Y10T428/12924 , Y10T428/12931 , Y10T428/12937 , Y10T428/12951 , Y10T428/12958
摘要： In one aspect of the present invention, provided is a zinc-plated steel sheet for hot pressing having outstanding surface characteristics, comprising: a steel foundation plate comprising a metal surface diffusion layer of which the Gibbs free energy reduction per mole of oxygen during oxidation is less than that of Cr, to a depth of 1 µm from the surface; an aluminium-rich layer containing at least 30 wt.% of aluminium formed on the surface diffusion layer of the metal of which the Gibbs free energy reduction per mole of oxygen during oxidation is less than that of Cr; and a zinc plating layer formed on the aluminium-rich layer; wherein annealing oxides having a mean thickness of no more than 150 nm are distributed in a non-continuous fashion between the surface diffusion layer and the aluminium-rich layer, and there is a content of at least 0.1 wt.% of the metal of which the Gibbs free energy reduction per mole of oxygen during oxidation is less than that of Cr, to a depth of 1 µm from the surface of the steel foundation plate. In this way, a metal having a low affinity for oxygen is coated to an effective thickness prior to annealing and thus the creation of annealing oxides at the surface of the steel sheet is suppressed and a uniform zinc plating layer is formed, and alloying of the zinc plating layer is promoted during press-processing heat treatment such that the melting temperature of the zinc plating layer is increased within a short time, thereby making it possible to prevent deterioration of the plating layer and to minimise the occurrence of internal oxides formed after hot press moulding. Also, according to another aspect of the present invention, an oxide layer able to prevent deterioration of the zinc plating layer is formed on the surface of the plating layer during hot press heating, and a three element phase of Zn, Fe and the metal is formed in the plating layer such that the zinc plating layer can be kept stable, good surface conditions are ensured and the phosphatability is outstanding, the plating properties during electrodeposition plating and film adhesion can be ensured even without carrying out a separate phosphating process, and workability can be improved as cracking in the steel foundation plate during hot press moulding is prevented.
摘要翻译：在本发明的一个方面中，提供具有突出表面特性的用于热压的镀锌钢板，其包括：钢基础板，其包含金属表面扩散层，其中氧化期间每摩尔氧的吉布斯自由能下降是小于Cr的深度，距离表面1μm的深度; 在金属的表面扩散层上形成的含有至少30重量％铝的富铝层，其中在氧化过程中每摩尔氧的吉布斯自由能降低小于Cr的摩尔数; 以及在富铝层上形成的镀锌层; 其中平均厚度不超过150nm的退火氧化物以不连续的方式分布在表面扩散层和富铝层之间，并且其中金属的含量至少为0.1重量％氧化期间每摩尔氧的吉布斯自由能降低小于Cr的自由能降低至距钢基板表面1μm的深度。这样，在退火之前将对氧的亲和力低的金属涂覆成有效厚度，从而抑制了钢板表面处的退火氧化物的产生，并形成了均匀的镀锌层，并且合金化了在压制加工热处理期间促进镀锌层，使得镀锌层的熔化温度在短时间内增加，由此使得能够防止镀层的劣化并且使热后形成的内部氧化物的发生最小化压模成型。此外，根据本发明的另一方面，在热压加热过程中，在镀层的表面上形成能够防止镀锌层劣化的氧化物层，并且Zn，Fe和金属的三元素相为形成在镀层中，使得锌镀层能够保持稳定，确保良好的表面条件，并且可磷化性优异，即使不进行单独的磷化处理也可以确保电沉积镀覆和膜附着期间的镀覆性能，并且可加工性可以防止热压成型时钢基板的开裂。

7. 发明公开

EP1960562A4 High strength cold gewaltes steel sheet having excellent deformability and coating property, from this sheet prepared on the basis of zinc-plated steel sheet and manufacturing processes for 有权转让
标题翻译：具有优异的变形和涂层材料该片中高强冷弯GEWALTES钢板由基于锌的钢板及其制造方法
公开(公告)号：EP1960562A4
公开(公告)日：2012-01-25
申请号：EP06824061
申请日：2006-12-08
申请人： POSCO
发明人： AHN YEON-SANG , OH JIN-KEUN , SOHN IL-RYOUNG , KIM SEONG-JU , CHIN KWANG-GEUN
IPC分类号： C22C38/00 , C21D8/02
CPC分类号： C21D8/0226 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/38 , C22C38/44 , C22C38/48 , C22C38/60

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