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1. 发明专利

JP2013194249A Hot-press molded article and method for producing the same 有权
标题翻译：热压成型品及其制造方法
公开(公告)号：JP2013194249A
公开(公告)日：2013-09-30
申请号：JP2012059448
申请日：2012-03-15
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAITO JUNYA , MURAKAMI TOSHIO , IKEDA CHIKAYUKI , OKITA KEISUKE
IPC分类号： C22C38/00 , B21D22/20 , C21D1/18 , C21D9/00 , C22C38/60
CPC分类号： C21D8/0247 , B21D22/208 , B62D29/007 , C21D1/18 , C21D1/673 , C21D8/005 , C21D8/0221 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C21D2221/00 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32
摘要： PROBLEM TO BE SOLVED: To provide a hot-press molded article that has a region corresponding to a shock resistant site and an energy absorption site within a single molded article without applying a welding method, and can achieve a high level of a balance between strength and extension by respective regions, and a method useful for manufacturing the hot-press molded article.SOLUTION: A hot-press molded article has a first molded region exhibiting a metal structure of 80 to 97 area% of martensite and 3 to 20 area% of residual austenite respectively, the remaining structure being no greater than 5 area%, and a second molded region exhibiting a metal structure including 30 to 97 area% of annealed martensite or annealed bainite, 0 to 67 area% of still-quenched martensite, and 3 to 20 area% of residual austenite.
摘要翻译：要解决的问题：为了提供一种在不使用焊接方法的情况下具有对应于单个成型体内的抗冲击部位和能量吸收部位的区域的热压成型体，并且能够实现高强度和各区域的延伸，以及可用于制造热压成型体的方法。热塑成型体具有呈现金属结构为80〜97面积％的马氏体和3〜20面积％的第一成型区域，的残留奥氏体，剩余结构不大于5面积％，第二模制区域呈现退火马氏体或退火贝氏体的面积％为30-97％的金属结构，0-67面积％的仍为淬火的马氏体，以及 3〜20面积％的残余奥氏体。

2. 发明专利

JP2013185243A Steel sheet for hot pressing, press-molded product and method for manufacturing the press-molded product 有权
标题翻译：用于热压，压制产品的钢板和用于制造压制产品的方法
公开(公告)号：JP2013185243A
公开(公告)日：2013-09-19
申请号：JP2012053845
申请日：2012-03-09
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MURAKAMI TOSHIO , NAITO JUNYA , OKITA KEISUKE , IKEDA CHIKAYUKI
IPC分类号： C22C38/00 , B21D22/20 , C21D1/18 , C21D9/00 , C21D9/46 , C22C38/60
CPC分类号： C22C38/54 , B21D22/208 , B21D37/16 , C21D1/673 , C21D8/0221 , C21D8/0247 , C21D9/00 , C21D9/46 , C21D2211/001 , C21D2211/002 , C21D2211/004 , C21D2211/008 , C21D2221/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/50 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet for hot pressing which, when a uniform characteristic is required within a molded product, can yield a hot-press molded product capable of achieving a balance between high strength and elongation at a high level and, when regions corresponding to an impact-resistant part and an energy-absorbing part are required within a single molded product, is useful for obtaining a hot-press molded product that is capable of achieving a balance between high strength and elongation corresponding to each region at a high level and shows good softening-prevention property at HAZ.SOLUTION: A steel sheet for hot pressing has a prescribed chemical composition, wherein the average circle equivalent diameter of Ti-containing precipitates contained in the steel sheet having a circle equivalent diameter of ≤30 nm is ≤6 nm, the precipitated Ti content and the total Ti content in the steel satisfy the following relation (1): (precipitated Ti content (mass%))-3.4[N]≤0.5×[(total Ti content (mass%))-3.4[N]] (wherein [N] is the N content (mass%) in the steel), and the total area fraction of bainite and martensite in the metallic structure is ≥80%.
摘要翻译：要解决的问题：提供一种用于热压的钢板，当在模制产品中需要均匀的特性时，可以产生能够在高水平上实现高强度和伸长率之间的平衡的热压成型产品，当在单个模制产品中需要与抗冲击部分和能量吸收部分相对应的区域时，可用于获得能够实现与各区域相对应的高强度和伸长率之间的平衡的热压成型产品高水平，在HAZ中具有良好的防软化性。解决方案：用于热压的钢板具有规定的化学组成，其中包含在具有圆当量直径≤3的钢板中的含Ti沉淀物的平均当量直径 30nm≤6nm，钢中析出的Ti含量和总Ti含量满足下列关系式（1）：（析出Ti含量（质量％））-3 .4 [N]≤0.5×[（总Ti含量（质量％）） - 3.4 [N]]（其中[N]是钢中的N含量（质量％）），贝氏体和金属结构中的马氏体≥80％。

3. 发明专利

JP2012076100A Method of manufacturing press-formed article 有权
标题翻译：制造压制品的方法
公开(公告)号：JP2012076100A
公开(公告)日：2012-04-19
申请号：JP2010222938
申请日：2010-09-30
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAITO JUNYA , OKITA KEISUKE , IKEDA CHIKAYUKI
IPC分类号： B21D22/20 , B21D22/22
CPC分类号： B21D37/16 , B21D22/022 , B21D22/20 , B21D22/208 , B21D22/22 , B21D24/02 , B21D24/04
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a press-formed article which is excellent in formability to such a degree that the press-formed article can be deep-drawn without complicating die configuration and without bringing about troubles caused by the formation of scale, as necessary, on the surface of a steel sheet.SOLUTION: In the method of manufacturing a press-formed article, when manufacturing a formed article by press-forming a thin steel sheet 4 by using a punch 1 and a die 2, the press forming is started after the thin steel sheet 4 is heated to a temperature equal to or higher than the Actransformation point, and the thin steel sheet is formed in such a manner that temperature difference in the steel sheet is within 200°C when the thin steel sheet 4 has reached 1/3 of forming height.
摘要翻译：解决问题的方案：提供一种成型品制造方法，该成型品的成型性能使得压制成形品能够深度拉深而不会使模具结构复杂化，并且不会引起由根据需要在钢板的表面上形成氧化皮。解决方案：在制造压制成型制品的方法中，当通过使用冲头1和模具2来压制成形薄钢板4制造成形制品时，在薄钢板之后开始压制成形 4被加热到等于或高于Ac > 3 相变点的温度，并且薄钢板以这样的方式形成，使得钢板中的温度差在200 当薄钢板4达到成形高度的1/3时。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2006207020A Ultrahigh-strength steel sheet superior in hydrogen-embrittlement resistance and workability 有权
标题翻译：超高强度钢板超级耐腐蚀性和耐磨性
公开(公告)号：JP2006207020A
公开(公告)日：2006-08-10
申请号：JP2005147358
申请日：2005-05-19
申请人： Kobe Steel Ltd , Shinshu Tlo:Kk , 株式会社信州Tlo , 株式会社神戸製鋼所
发明人： YUSE FUMIO , IKEDA CHIKAYUKI , MUKAI YOICHI , AKAMIZU HIROSHI , KINUGASA JUNICHIRO , SAITO KENJI , SUGIMOTO KOICHI , HOJO TOMOHIKO
IPC分类号： C22C38/00 , C21D9/46 , C22C38/16
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh-strength steel sheet superior in hydrogen-embrittlement resistance and workability.
SOLUTION: The ultrahigh-strength steel sheet superior in hydrogen-embrittlement resistance comprises, by mass, over 0.25% to 0.60% C, 1.0-3.0% Si, 1.0-3.5% Mn, 0.15% or less P, 0.02% or less S, 1.5% or less (excluding 0%) Al, further 0.003-0.5% Cu and/or 0.003-1.0% Ni, and the balance iron with unavoidable impurities; has a metallurgical structure after the sheet has been stretch-worked at a stretching rate of 3%, in which retained austenite occupies 1% or more, bainitic ferrite and martensite occupy 80% or more in total, and ferrite and pearlite occupy 9% or less (including 0%) in total by an area rate with respect to the total structure, and in which crystal grains of the retained austenite have an average axial ratio (major axis/minor axis) of 5 or higher; and has a tensile strength of 1,180 MPa or higher.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供耐氢脆性和加工性优异的超高强度钢板。解决方案：耐氢脆性优异的超高强度钢板以质量计包含超过0.25％至0.60％的C，1.0-3.0％的Si，1.0-3.5％的Mn，0.15％或更少的P，0.02％或更小的S，1.5％以下（不含0％）Al，还含有0.003〜0.5％的Cu和/或0.003〜1.0％的Ni，余量为不可避免的杂质的铁; 在片材以3％的拉伸速度进行拉伸加工后，其中残留奥氏体占1％以上，贝氏体铁素体和马氏体总共占80％以上，铁素体和珠光体占9％，残留奥氏体的晶粒的平均轴比（长轴/短轴）为5以上，总体上的面积率相对于总结构的面积率相对较少（包括0％）; 拉伸强度为1180MPa以上。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005336526A High strength steel sheet having excellent workability and its production method 审中-公开
标题翻译：具有优异工作能力的高强度钢板及其生产方法
公开(公告)号：JP2005336526A
公开(公告)日：2005-12-08
申请号：JP2004155252
申请日：2004-05-25
申请人： Kobe Steel Ltd , Shinshu Tlo:Kk , 株式会社信州Tlo , 株式会社神戸製鋼所
发明人： AKAMIZU HIROSHI , IKEDA CHIKAYUKI , MAKII KOICHI , MUKAI YOICHI , NAGAO MAMORU , SUGIMOTO KOICHI
IPC分类号： B21B3/00 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/58
CPC分类号： C21D1/20 , C21D1/22 , C21D1/25 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D2211/001 , C21D2211/008
摘要： PROBLEM TO BE SOLVED: To provide a high strength steel sheet in which the balance of strength, elongation and stretch flange formability (hole expansion ratio) is excellent, and particularly, the balance of the strength and elongation is further excellent.
SOLUTION: Regarding the high strength steel sheet having excellent workability, in a retained austenitic steel sheet comprising, by mass, 0.06 to 0.6% C, Si+Al: 0.5 to 3%, 0.5 to 3% Mn, ≤0.15% (excluding 0%) P and ≤0.02% (excluding 0%) S, and comprising tempered martensite, the space factor of the tempered martensite is ≥50% to the whole structure, the space factor of the retained austenite is 3 to 20% to the whole structure, and also, the average crystal grain size of the retained austenite is ≤4.5 μm.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供强度，伸长率和拉伸凸缘成形性（孔膨胀率）的平衡优异的高强度钢板，特别是强度和伸长率的平衡优异。解决方案：对于具有优异加工性的高强度钢板，在残留奥氏体钢板中，以质量计为0.06〜0.6％，Si + Al：0.5〜3％，Mn为0.5〜3％，≤0.15％（不包括0％）P和≤0.02％（不包括0％）S，回火马氏体，回火马氏体的空间系数为整体结构的≥50％，残余奥氏体的空间系数为3〜20％对于整个结构，残留奥氏体的平均晶粒尺寸也≤4.5μm。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005146301A High-strength hot-rolled steel plate superior in formability 有权
标题翻译：高强度热轧钢板超高强度
公开(公告)号：JP2005146301A
公开(公告)日：2005-06-09
申请号：JP2003381628
申请日：2003-11-11
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： IKEDA CHIKAYUKI , AKAMIZU HIROSHI , MAKII KOICHI , HASHIMOTO SHUNICHI
IPC分类号： C22C38/00 , C22C38/12
摘要： PROBLEM TO BE SOLVED: To provide a high-strength hot-rolled steel plate superior in the balance of strength, ductility and work hardening characteristics.
SOLUTION: The high-strength hot-rolled steel plate comprises, by mass% (hereinafter the same about components), 0.06-0.23% C, 0.5-2.5% Si, 0.5-2.5% Mn, 0.03-0.10% Nb and/or 0.1-1.0% Mo, and the balance iron with unavoidable impurities; and has a metallographic structure which includes, by an area rate (hereinafter the same about the metallographic structure), 5-20% retained austenite, 20% or more polygonal ferrite and 30% or more bainitic ferrite, while satisfying 60% or more polygonal ferrite and bainitic ferrite in total.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供在强度，延展性和加工硬化特性的平衡方面优异的高强度热轧钢板。解决方案：高强度热轧钢板以质量％计（以下与组分相同）包含0.06-0.23％C，0.5-2.5％Si，0.5-2.5％Mn，0.03-0.10％Nb 和/或0.1-1.0％Mo，余量为不可避免杂质的铁; 并且具有金相组织，其面积率（以下相当于金相结构）包含5-20％的残留奥氏体，20％以上的多边形铁素体和30％以上的贝氏体铁素体，同时满足60％以上的多边形铁素体和贝氏体铁素体。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004211147A Galvanized steel sheet excellent in hot-press formability and method for producing hot-press formed member using this sheet, hot-press formed member excellent in high strength and appearance 有权
公开(公告)号：JP2004211147A
公开(公告)日：2004-07-29
申请号：JP2002381218
申请日：2002-12-27
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： IKEDA CHIKAYUKI , MAKII KOICHI , AKAMIZU HIROSHI , ASAI TATSUYA
IPC分类号： C22C38/00 , C22C38/04 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a galvanized steel sheet excellent in hot-press formability used for producing a hot-press formed member having ≥ 980 MPa strength and excellent appearance.
SOLUTION: This galvanized steel sheet contains, by mass%, 0.05-0.4% C, ≤1.0% Si (no containing 0), 2.5-8% Mn and Ac
3 point shown in the following equation (1) is ≤800°C. Ac
3 (°C)=910-203×[C]
1/2 +44.7[Si]-30[Mn]-11[Cr]+31.5[Mo]-15.2[Ni]-20[Cu]: (1) (in the equation, [] is shown as mass% of each containing component).
COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2003138345A HIGH STRENGTH AND HIGH DUCTILITY STEEL AND STEEL SHEET HAVING EXCELLENT LOCAL DUCTILITY, AND METHOD OF PRODUCING THE STEEL SHEET 审中-公开
公开(公告)号：JP2003138345A
公开(公告)日：2003-05-14
申请号：JP2002085209
申请日：2002-03-26
申请人： KOBE STEEL LTD
发明人： MAKII KOICHI , IKEDA CHIKAYUKI , AKAMIZU HIROSHI , HASHIMOTO SHUNICHI , YURI TSUKASA
IPC分类号： C21D9/46 , C22C38/00 , C22C38/04 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide steel and a steel sheet having high strength and high ductility and also provided with excellent local ductility, and to provide a method of producing the steel sheet. SOLUTION: Each of the steel and the steel sheet has a composition containing, by mass, 0.06 to 0.20% C, =30%. The content of Si is preferably controlled in =20 sec.

9. 发明专利

JP2002309334A HIGH STRENGTH STEEL SHEET HAVING EXCELLENT FORMABILITY AND PRODUCTION METHOD THEREFOR 审中-公开
公开(公告)号：JP2002309334A
公开(公告)日：2002-10-23
申请号：JP2001300503
申请日：2001-09-28
申请人： KOBE STEEL LTD
发明人： KAJIMA TAKAHIRO , HASHIMOTO SHUNICHI , IKEDA CHIKAYUKI , SUGIMOTO KOICHI , NAGASAKA AKIHIKO , KANDA AKINOBU , KIKUCHI RYO
IPC分类号： C23C2/02 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/58 , C23C2/06 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a high strength steel sheet having excellent formability which has both characteristics of excellent strength flanging properties and total elongation in a high strength and superhigh strength region of an about 500 to 1,400 MPa class. SOLUTION: The high strength steel sheet has a composition containing, by mass, 0.06 to 0.6% C, 0.5 to 3% Si+Al, 0.5 to 3 Mn, =50% by area of the whole structure. A second phase structure contains retained austenite in 3 to 30% by area of the whole structure and optionally contains further bainite/martensite.

10. 发明专利

JP2000256788A GALVANNEALED STEEL SHEET EXCELLENT IN WORKABILITY, AND ITS MANUFACTURE 失效
公开(公告)号：JP2000256788A
公开(公告)日：2000-09-19
申请号：JP6392299
申请日：1999-03-10
申请人： KOBE STEEL LTD
发明人： HASHIMOTO SHUNICHI , MAKII KOICHI , KAJIMA TAKAHIRO , IKEDA CHIKAYUKI , SHINTO YOSUKE
IPC分类号： C23C2/06 , C21D6/00 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/16 , C23C2/28 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To improve tensile strength, workability, and plating characteristic by applying galvannealing to the surface of a steel sheet as basis material having a composition in which specific amounts of C, Si, Al, and Mn are contained and respective contents of them satisfy a specific relation and also having, as a principal structure, a structure which has respectively specified fraction of ferrite, amount of retained austenite, and ratio of bainite. SOLUTION: This steel sheet as basis material has a composition containing, by mass, 0.03-0.17% C, =80 vol.% ferrite fraction, 2 vol.% amount of retained austenite, and

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