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1. 发明申请

WO2007067014A8 HIGH STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY AND COATING PROPERTY, ZINC-BASED METAL PLATED STEEL SHEET MADE OF IT AND THE METHOD FOR MANUFACTURING THEREOF 审中-公开
标题翻译：具有优异的可塑性和涂层性能的高强度冷轧钢板及其制造的基于锌的金属镀层钢板及其制造方法
公开(公告)号：WO2007067014A8
公开(公告)日：2014-03-13
申请号：PCT/KR2006005355
申请日：2006-12-08
申请人： POSCO , AHN YEON-SANG , OH JIN-KEUN , SOHN IL-RYOUNG , KIM SEONG-JU , CHIN KWANG-GEUN
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
摘要： Provided is a high-strength cold rolled steel sheet and a high-strength zinc-coated steel sheet, which are primarily used as a structural member and a reinforcement of the car body, and has excellent formability and coating properties; and methods for manufacturing the same. The steel sheet comprises 0.01-0.2 wt% of carbon (C), 0.01-2.0 wt% of silicon (Si), 0.5-4.0 wt% of manganese (Mn), less than 0.1 wt% of phosphorous (P), less than 0.03 wt% of sulfur (S), less than 1.0 wt% of soluble aluminum (Sol. Al), 0.001-0.1 wt% of nitrogen (N), 0.005-1.0 wt% of antimony (Sb), and the balance of iron (Fe) with inevitable impurities. Provided is also a zinc- coated steel sheet and preparation thereof using the same steel sheet. According to the present invention, excellent coating properties and high tensile strength of more than 490 MPa can be achieved. In addition, the formability of TS * El balance having 15,000 MPaD % or higher can be secured. Further, excellent bake hardenability of a BH value having 80 MPa or higher can be obtained.
摘要翻译：本发明提供一种主要用作结构件和加强车身的高强度冷轧钢板和高强度镀锌钢板，并且具有优异的成形性和涂层性能; 及其制造方法。钢板包含0.01-0.2重量％的碳（C），0.01-2.0重量％的硅（Si），0.5-4.0重量％的锰（Mn），小于0.1重量％的磷（P），小于 0.03重量％的硫（S），小于1.0重量％的可溶性铝（Sol.Al），0.001-0.1重量％的氮（N），0.005-1.0重量％的锑（Sb），余量的铁（Fe）与不可避免的杂质。本发明还提供一种镀锌钢板及其制备方法。根据本发明，可以实现超过490MPa的优异的涂布性能和高抗拉强度。此外，可以确保TS * El平衡的成型性为15,000MPaD％以上。此外，可以获得具有80MPa或更高的BH值的优异的烘烤淬透性。

2. 发明申请

WO2009145563A3 ULTRA HIGH STRENGTH STEEL SHEET WITH AN EXCELLENT HEAT TREATMENT PROPERTY FOR HOT PRESS FORMING, QUENCHED MEMBER, AND MANUFACTURING METHOD FOR SAME 审中-公开
标题翻译：具有优异热处理性能的超高强度钢板，用于热压成型，淬火构件及其制造方法
公开(公告)号：WO2009145563A3
公开(公告)日：2010-03-04
申请号：PCT/KR2009002811
申请日：2009-05-27
申请人： POSCO , OH JIN-KEUN , KANG DAE-YOUNG , CHIN KWANG-GEUN , SIN DONG-SEOUG
发明人： OH JIN-KEUN , KANG DAE-YOUNG , CHIN KWANG-GEUN , SIN DONG-SEOUG
IPC分类号： C22C38/04
CPC分类号： C22C38/02 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/18
摘要： The present invention relates to an ultra high strength steel sheet with an excellent heat treatment property, wherein the steel sheet contains, by weight %, C: 0.2 to 0.5%, Si: 0.01 to 1.5%, Mn: 0.5 to 2.0%, P: 0.1% or less (but not 0%), S: 0.03% or less (but not 0%), soluble Al: 0.1% or less (but not 0%), N: 0.01 to 0.1%, and Cr: 0.1 to 2.0%, and a remainder consisting of Fe and other impurities, and has a tensile strength measured before hot press forming of 800 MPa or less. The invention also relates to a manufacturing method for same. Further, the present invention relates to a quenched member formed by hot press forming and quick freezing the steel sheet to a tensile strength of 1800 MPa or higher, and relates to a manufacturing method for same. The present invention provides a steel sheet the tensile strength of which when measured before hot press forming is 800MPa or less and the tensile strength of which when measured after hot press forming and quick freezing is 1800 MPa or higher. Moreover, the steel sheet of the present invention has a yield strength increased to 100 MPa or higher after coating.
摘要翻译：本发明涉及一种具有优异的热处理性能的超高强度钢板，其中钢板以重量％计含有C：0.2〜0.5％，Si：0.01〜1.5％，Mn：0.5〜2.0％，P ：0.1％以下（但不为0％），S：0.03％以下（但不为0％），可溶性Al：0.1％以下（但不为0％），N：0.01〜0.1％，Cr：0.1 至2.0％，剩余部分由Fe等杂质构成，热压成型前的拉伸强度为800MPa以下。本发明还涉及其制造方法。此外，本发明涉及通过热压成型形成的淬火构件，并且将钢板快速冷冻至拉伸强度为1800MPa以上，并且涉及其制造方法。本发明提供一种钢板，其在热压成形前测定的抗拉强度为800MPa以下，其热压成形和快速冷冻后的拉伸强度为1800MPa以上。此外，本发明的钢板的涂布后的屈服强度提高到100MPa以上。

3. 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。

4. 发明申请

WO2011081392A4 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 审中-公开
标题翻译：用于具有优异表面特性的热压的镀锌钢板，使用其的热压成型件及其制造方法
公开(公告)号：WO2011081392A4
公开(公告)日：2012-01-19
申请号：PCT/KR2010009392
申请日：2010-12-28
申请人： POSCO , SOHN IL-RYOUNG , KIM JONG-SANG , PARK JOONG-CHUL , CHO YEOL-RAE , OH JIN-KEUN , CHO HAN-GU , CHUNG BONG-HOON , LEE JONG-SEOG
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： C23C2/06 , C22C38/00 , C23C2/02 , C23C2/28
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 surface diffusion layer of a metal of which the Gibbs free energy reduction per mole of oxygen during oxidation is less than that of Cr, within 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, within 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 melt 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, a good surface condition is 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，提供了一种具有优异表面特性的用于热压的镀锌钢板，包括：钢基础板，其包括金属的表面扩散层，其每摩尔氧的吉布斯自由能降低在距离表面1μm的深度内氧化小于Cr，在金属的表面扩散层上形成含有至少30重量％的铝的富铝层，其中氧化期间每摩尔氧的吉布斯自由能降低小于Cr; 以及形成在富铝层上的镀锌层; 其中平均厚度不超过150nm的退火氧化物以非连续的方式分布在表面扩散层和富铝层之间，并且其含量至少为其重量的0.1重量％在氧化期间每摩尔氧的吉布斯自由能降低小于Cr的距离，距离钢基板的表面1μm以下。以这种方式，在退火之前将对氧的亲和力低的金属涂覆到有效厚度，因此在钢板表面产生退火氧化物，并形成均匀的镀锌层，并且合金化在加压热处理中促进镀锌层，使得镀锌层的熔融温度在短时间内增加，从而可以防止镀层的劣化，并使热镀后形成的内部氧化物的发生最小化压模。此外，根据本发明的另一方面，在热压加热期间，在镀层的表面上形成能够防止镀锌层劣化的氧化物层，Zn，Fe和金属的三元相为形成在镀层中，使得镀锌层可以保持稳定，良好的表面状态得到确保并且磷酸盐性突出，即使不进行单独的磷化工艺，也可以确保电沉积电镀和膜粘附期间的电镀性能，可以提高加工性，因为防止热压成型时的钢基板的龟裂。

5. 发明申请

WO2007064172A9 STEEL SHEET FOR HOT PRESS FORMING HAVING EXCELLENT HEAT TREATMENT AND IMPACT PROPERTY, HOT PRESS PARTS MADE OF IT AND THE METHOD FOR MANUFACTURING THEREOF 审中-公开
标题翻译：用于具有优良热处理和冲击性能的热压成型钢板，其热压件及其制造方法
公开(公告)号：WO2007064172A9
公开(公告)日：2010-07-15
申请号：PCT/KR2006005155
申请日：2006-12-01
申请人： POSCO , OH JIN-KEUN , BAE DAE-CHUL , KIM SEONG-JU , CHIN KWANG-GEUN , LEE JAE-RYUNG , PARK YOUNG-JUN
发明人： OH JIN-KEUN , BAE DAE-CHUL , KIM SEONG-JU , CHIN KWANG-GEUN , LEE JAE-RYUNG , PARK YOUNG-JUN
IPC分类号： C22C38/04 , C22C38/00
CPC分类号： C22C38/02 , C22C38/001 , C22C38/04 , C22C38/06 , Y10T428/12 , Y10T428/12972
摘要： Disclosed is a steel sheet that exhibits an ultra-high strength after hot press forming followed by rapid cooling, and an enhanced yield strength after painting. The steel sheet has a composition comprising 0.1% to 0.5% by weight of C, 0.01% to 1.0% by weight of Si, 0.5% to 4.0% by weight of Mn, 0.1 % by weight or less of P, 0.03% by weight or less of S, 0.1 % by weight of soluble Al, 0.01% to 0.1% by weight of N, 0.3% by weight or less of W, and the balance Fe and other inevitable impurities. Further disclosed are a hot-pressed part made of the steel sheet and a method for manufacturing the hot-pressed part. The hot-pressed part achieves a high increment in yield strength after heat treatment for painting while ensuring an ultra-high tensile strength. Furthermore, the hot-pressed part exhibits superior adhesion to a coatinglayer, good surface appearance and improved corrosion resistance after painting.
摘要翻译：公开了一种在热压成型后快速冷却时具有超高强度的钢板，涂装后的屈服强度提高。该钢板具有0.1〜0.5重量％的C，0.01〜1.0重量％的Si，0.5〜4.0重量％的Mn，0.1重量％以下的P，0.03重量％或更少的S，0.1重量％的可溶性Al，0.01〜0.1重量％的N，0.3重量％以下的W，余量为Fe等不可避免的杂质。进一步公开了由钢板制成的热压部件和制造热压部件的方法。热压部件在确保超高抗拉强度的同时，在涂装热处理后的屈服强度增加很大。此外，热压部件对涂布层具有优异的粘附性，良好的表面外观和改善的涂漆后的耐腐蚀性。

6. 发明申请

WO2011081392A2 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 审中-公开
公开(公告)号：WO2011081392A2
公开(公告)日：2011-07-07
申请号：PCT/KR2010009392
申请日：2010-12-28
申请人： POSCO , SOHN IL-RYOUNG , KIM JONG-SANG , PARK JOONG-CHUL , CHO YEOL-RAE , OH JIN-KEUN , CHO HAN-GU , CHUNG BONG-HOON , LEE JONG-SEOG
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： C23C2/06 , C22C38/00 , C23C2/02 , C23C2/28
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 surface diffusion layer of a metal of which the Gibbs free energy reduction per mole of oxygen during oxidation is less than that of Cr, within 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, within 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 melt 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, a good surface condition is 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.

7. 发明申请

WO2012091328A3 STEEL SHEET HAVING ENHANCED DUCTILITY FOR A MOLDING MEMBER, MOLDING MEMBER, AND METHOD FOR MANUFACTURING SAME 审中-公开
标题翻译：具有用于模制构件的增强刚度的钢板，模制构件及其制造方法
公开(公告)号：WO2012091328A3
公开(公告)日：2012-09-07
申请号：PCT/KR2011009634
申请日：2011-12-14
申请人： POSCO , OH JIN-KEUN , KWAK JAI-HYUN , CHO YEOL-RAE , KIM KI-SOO
发明人： OH JIN-KEUN , KWAK JAI-HYUN , CHO YEOL-RAE , KIM KI-SOO
IPC分类号： C22C38/00 , C21D8/00 , C22C38/04
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 having enhanced ductility for a molding member, to a molding member, and to a method for manufacturing same, and more particularly, to a steel sheet for a molding member, which has ultra-high strength and ductility so as to be usable for automotive structural members or reinforcement members, to a molding member, and to a method for manufacturing same. The present invention relates to a steel sheet having enhanced ductility for a molding member, to a molding member, and to a method for manufacturing same, wherein the steel sheet comprises, in wt %: 0.1-1.0% of C; 0.4-3.0% of Si+Al; 0.1-5.0% of Mn; 0.0001-0.1% of P; 0.0001-0.03% of S; 0.03% or less (but not 0) of N; the remainder being Fe and unavoidable impurities. According to one aspect of the present invention, a molding member which has ultra-high strength and ductility, and which can be used for automotive structural members or reinforcement members, can be provided, and further, the field in which said molding member can be used can be expanded to heat-treatable collision members.
摘要翻译：本发明涉及一种具有成型构件延伸性，成型构件的钢板及其制造方法，更具体地说，涉及具有超高强度和延展性的成型构件用钢板以便可以用于汽车结构件或加强件，到模制件，以及其制造方法。本发明涉及一种成型构件，成型构件的延展性增强的钢板及其制造方法，其中，所述钢板以重量％计含有C：0.1〜1.0％ 0.4-3.0％的Si + Al; 0.1-5.0％的Mn; 0.0001-0.1％P; 0.0001-0.03％的S; 0.03％以下（但不是0）N; 余量为Fe和不可避免的杂质。根据本发明的一个方面，可以提供具有超高强度和延展性并且可以用于汽车结构件或加强件的成型件，此外，可以提供所述成型件可以是使用的可以扩展到可热处理的碰撞构件。

8. 发明申请

WO2011081392A3 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 审中-公开
标题翻译：用于具有出色表面特性的热压的镀锌钢板，使用其获得的热压成型部件及其制造方法
公开(公告)号：WO2011081392A3
公开(公告)日：2011-12-01
申请号：PCT/KR2010009392
申请日：2010-12-28
申请人： POSCO , SOHN IL-RYOUNG , KIM JONG-SANG , PARK JOONG-CHUL , CHO YEOL-RAE , OH JIN-KEUN , CHO HAN-GU , CHUNG BONG-HOON , LEE JONG-SEOG
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： C23C2/06 , C22C38/00 , C23C2/02 , C23C2/28
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 surface diffusion layer of a metal of which the Gibbs free energy reduction per mole of oxygen during oxidation is less than that of Cr, within 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, within 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 melt 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, a good surface condition is 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，提供了一种具有优异表面特性的用于热压的镀锌钢板，其包括：钢基础板，其包括金属的表面扩散层，其中在每个摩尔氧期间吉布斯自由能降低在离表面1μm的深度内氧化比Cr的氧化少; 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％在距离钢基板表面1μm的深度内，氧化期间每摩尔氧的Gibbs自由能降低小于Cr的Gibbs自由能降低。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，使得锌镀层的熔融温度在短时间内增加，由此使得可以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能确保电沉积镀覆和膜粘合期间的镀覆性能，并且防止了在热压模制过程中钢基板的开裂，可以提高可操作性。

9. 发明申请

WO2007064172A1 STEEL SHEET FOR HOT PRESS FORMING HAVING EXCELLENT HEAT TREATMENT AND IMPACT PROPERTY, HOT PRESS PARTS MADE OF IT AND THE METHOD FOR MANUFACTURING THEREOF 审中-公开
标题翻译：用于具有优良热处理和冲击性能的热压成型钢板，其热压件及其制造方法
公开(公告)号：WO2007064172A1
公开(公告)日：2007-06-07
申请号：PCT/KR2006/005155
申请日：2006-12-01
申请人： POSCO , OH, Jin-Keun , BAE, Dae-Chul , KIM, Seong-Ju , CHIN, Kwang-Geun , LEE, Jae-Ryung , PARK, Young-Jun
发明人： OH, Jin-Keun , BAE, Dae-Chul , KIM, Seong-Ju , CHIN, Kwang-Geun , LEE, Jae-Ryung , PARK, Young-Jun
IPC分类号： C22C38/04 , C22C38/00
CPC分类号： C22C38/02 , C22C38/001 , C22C38/04 , C22C38/06 , Y10T428/12 , Y10T428/12972
摘要： Disclosed is a steel sheet that exhibits an ultra-high strength after hot press forming followed by rapid cooling, and an enhanced yield strength after painting. The steel sheet has a composition comprising 0.1% to 0.5% by weight of C, 0.01% to 1.0% by weight of Si, 0.5% to 4.0% by weight of Mn, 0.1 % by weight or less of P, 0.03% by weight or less of S, 0.1 % by weight of soluble Al, 0.01% to 0.1% by weight of N, 0.3% by weight or less of W, and the balance Fe and other inevitable impurities. Further disclosed are a hot-pressed part made of the steel sheet and a method for manufacturing the hot-pressed part. The hot-pressed part achieves a high increment in yield strength after heat treatment for painting while ensuring an ultra-high tensile strength. Furthermore, the hot-pressed part exhibits superior adhesion to a coatinglayer, good surface appearance and improved corrosion resistance after painting.
摘要翻译：公开了一种在热压成型后快速冷却时具有超高强度的钢板，涂装后的屈服强度提高。该钢板具有0.1〜0.5重量％的C，0.01〜1.0重量％的Si，0.5〜4.0重量％的Mn，0.1重量％以下的P，0.03重量％或更少的S，0.1重量％的可溶性Al，0.01〜0.1重量％的N，0.3重量％以下的W，余量为Fe等不可避免的杂质。进一步公开了由钢板制成的热压部件和制造热压部件的方法。热压部件在确保超高抗拉强度的同时，在涂装热处理后的屈服强度增加很大。此外，热压部件对涂布层具有优异的粘附性，良好的表面外观和改善的涂漆后的耐腐蚀性。

10. 发明申请

WO2007067014A1 TOLE D'ACIER LAMINEE A FROID DE HAUTE RESISTANCE POSSEDANT UNE EXCELLENTE PROPRIETE DE FORMABILITE ET DE REVETEMENT, TOLE D'ACIER PLAQUEE DE METAL A BASE DE ZINC FABRIQUEE A PARTIR DE CETTE TOLE ET PROCECE DE FABRICATION DE CELLE-CI 审中-公开
标题翻译：钢板高强度冷连轧HAVING优异的性能与成形性涂层钢钢镀镍金属底座锌生产该片中及其制造方法
公开(公告)号：WO2007067014A1
公开(公告)日：2007-06-14
申请号：PCT/KR2006/005355
申请日：2006-12-08
申请人： POSCO , AHN, Yeon-Sang , OH, Jin-Keun , SOHN, Il-Ryoung , KIM, Seong-Ju , CHIN, Kwang-Geun
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
摘要： La présente invention concerne une tôle d'acier laminée à froid de haute résistance et une tôle d'acier revêtue de zinc de haute résistance qui sont principalement utilisées comme élément structurel et comme renfort de carrosserie de voitures et, qui possèdent d'excellentes propriétés de formabilité et de revêtement et, des procédés de fabrication de celles-ci. Cette tôle d'acier comprend entre 0,01 % et 0,2 % en masse de carbon (C), entre 0,0 1 % et 2 % en masse de silicium (Si), entre 0,5 % et 4,0 % en masse de manganèse (Mn), moins de 0,1 % en masse de phosphore (P), moins de 0,0 3 % en masse de soufre (S), moins de 1 % en masse d'aluminium soluble (Al sol.), de 0,001 % à 0,1 % en masse d'azote (N), de 0,005 % à 1, 0 % en masse d'antimoine (Sb), et le solde en fer (Fe) avec des impuretés inévitables. Cette invention concerne aussi une tôle d'acier revêtue de zinc et la préparation de celle-ci au moyen de cette tôle d'acier. Selon la présente invention, d'excellentes propriétés de revêtement et une résistance à la traction élevée > 490 MPa peuvent être obtenues. Par ailleurs, la formabilité de l'équilibre TS *EL présentant 15,000 MPaD % au minimum peut être assurée. De plus une dureté de cuisson excellente d'une valeur de BH de 80 Mpa au moins peut être obtenue..
摘要翻译：本发明涉及一种冷轧钢板与高强度冷和高强度锌的涂层钢板，其主要用作结构元件和作为车体增强件和其具有优良的性能成形性和它们的涂层和制造过程。此钢板为0.01％0.5％和4.0之间包括0.2重量％的碳（C）的，从0.0 1％至2％硅的质量（Si）的％（重量）锰（Mn），少于0.1％的磷（P）的质量，以重量计的硫（S）的小于0.0 3％（重量）可溶铝的小于1％（铝溶胶。）0.001％至0.1％的氮的质量（N），从0.005％至锑（Sb 1质量0％），余量的铁（Fe）与不可避免的杂质。本发明还涉及涂覆有锌及其由钢板的手段制备的钢板。根据本发明，涂布性优异和高拉伸强度> 490兆帕可以得到。此外，TS * EL平衡与ADPKD最小15.000％的成形性可放心使用。也可制得80兆帕的至少BH值的优异的烹饪硬度。

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