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1. 发明申请

WO02103073A2 HIGH-STRENGTH ALLOYED ALUMINUM-SYSTEM PLATED STEEL SHEET AND HIGH-STRENGTH AUTOMOTIVE PART EXCELLENT IN HEAT RESISTANCE AND AFTER-PAINTING CORROSION RESISTANCE 审中-公开
标题翻译：高强度合金铝系列钢板和高强度汽车零部件耐热性和耐后腐蚀性
公开(公告)号：WO02103073A2
公开(公告)日：2002-12-27
申请号：PCT/JP0205978
申请日：2002-06-14
申请人： NIPPON STEEL CORP , SUEHIRO MASAYOSHI , MAKI JUN , FUDA MASAHIRO , MIYAKOSHI TOSHIHIRO , TAKADA YOSHIHISA , EGUCHI HARUHIKO , IZAKI TERUAKI , KUSUMI KAZUHISA
发明人： SUEHIRO MASAYOSHI , MAKI JUN , FUDA MASAHIRO , MIYAKOSHI TOSHIHIRO , TAKADA YOSHIHISA , EGUCHI HARUHIKO , IZAKI TERUAKI , KUSUMI KAZUHISA
IPC分类号： C23C2/12 , C23C28/00 , C23C2/00
CPC分类号： C23C2/12
摘要： The present invention provides a hot press method used for producing a high-strength member for an automobile and, in particular, a part which requires high-strength, such as an undercarriage component of an automobile. More specifically, the present invention provides an aluminum plated steel sheet or an aluminum-zinc plated steel sheet suitable for high temperature forming (hot forming) wherein high strength is obtained after high temperature forming, and a method of producing the same. Also, the present invention provides a hot dip aluminum plated steel sheet which suppresses the alloying reaction of a plated layer during press forming and has beautiful appearance, and an aluminum-system plated steel sheet for hot press having excellent after-painting corrosion resistance. Concretely, the present invention is a high-strength aluminum-system plated steel sheet excellent in heat resistance and after-painting corrosion resistance, characterized by having an Fe-Al-system coating containing, in mass, Mn and Cr of more than 0.1% in total on the surface of the steel containing, in mass, C: 0.05 to 0.7%, Si: 0.05 to 1%, Mn: 0.5 to 3%, P: not more than 0.1%, S: not more than 0.1% and Al: not more than 0.2%, and, in addition, one or more element(s) selected from among Ti: 0.01 to 0.8%, Cr: not more than 3% and Mo: not more than 1%, so as to satisfy the following expression (1): Ti + 0.5xMn + Cr + 0.5xMo > 0.4 ... 1
摘要翻译：本发明提供一种用于制造汽车用高强度部件的热压法，特别是要求高强度的部件，例如汽车的起落架部件。更具体地，本发明提供一种适用于在高温成形后获得高强度的高温成形（热成型）的镀铝钢板或镀铝锌钢板及其制造方法。另外，本发明提供一种热压镀铝钢板，其在冲压成形时抑制镀层的合金化反应，外观美观，并且具有优异的耐油蚀性能的热压铝系镀覆钢板。具体地说，本发明是耐热性和耐后蚀性优异的高强度铝系电镀钢板，其特征在于，具有以质量计含有大于0.1％的Mn和Cr的Fe-Al体系涂层，在钢的表面总计含有C：0.05〜0.7％，Si：0.05〜1％，Mn：0.5〜3％，P：0.1％以下，S：0.1％以下，以及 Al：0.2％以下，Ti：0.01〜0.8％，Cr：3％以下，Mo：1％以下的1种以上的元素，满足以下表达式（1）：Ti + 0.5×Mn + Cr + 0.5xMo> 0.4 ... 1

2. 发明公开

KR20200140883A 강 부재 및 그 제조 방법 审中-公开
公开(公告)号：KR20200140883A
公开(公告)日：2020-12-16
申请号：KR20207032262
申请日：2019-04-23
申请人： NIPPON STEEL CORP
发明人： TABATA SHINICHIRO , SUWA YOSHIHIRO , HIKIDA KAZUO , KUSUMI KAZUHISA
IPC分类号： C22C38/60 , C21D1/18 , C21D9/46 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58
摘要： 본발명의일 형태에관한강 부재는, 소정의화학조성을갖고, 금속조직이, 체적%로, 마르텐사이트가 60.0 내지 85.0%, 베이나이트가 10.0 내지 30.0%, 잔류오스테나이트가 5.0 내지 15.0% 및잔부조직이 0 내지 4.0%이다. 상기잔류오스테나이트의최대짧은직경의길이는 30nm 이상이다. 상기강 부재중에존재하는원 상당직경이 0.1㎛이상또한애스펙트비가 2.5 이하인탄화물의수 밀도가 4.0×103개/㎟이하이다.

3. 发明公开

EP1225241A4 STEEL SHEET FOR PORCELAIN ENAMEL EXCELLENT IN FORMING PROPERTY, AGING PROPERTY AND ENAMELING CHARACTERISTICS AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：钢PORZELANEMAILLEIERUNG加工性优异，稳定时间和EMAILLEIERUNGSEIGENSCHAFTENUND用于生产
公开(公告)号：EP1225241A4
公开(公告)日：2003-08-27
申请号：EP01941226
申请日：2001-06-25
申请人： NIPPON STEEL CORP
发明人： MURAKAMI HIDEKUNI , NISHIMURA SATOSHI , KUSUMI KAZUHISA , SANAGI SHIROH
IPC分类号： C21D8/02 , C22C38/00 , C22C38/04 , C21D9/46
CPC分类号： C22C38/04 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/002 , C22C38/004
摘要： A steel sheet for porcelain enamel excellent in forming property, aging property and enameling characteristics which comprises 0.0018 % or less of C, 0.020 % or less of Si, 0.10 to 0.30 % of Mn, 0.010 to 0.030 % of P, 0.030 % or less of S, 0.005 % of Al, 0.0008 to 0.0050 % of N, 0.0050 % or less and 0.6 N or more of B, and 0.010 to 0.05 % of O, wherein the contents of the above components are suitably adjusted, and wherein the type and the form of nitrides are controlled by adjusting conditions for hot rolling. The steel sheet for porcelain enamel not only is free from aging and excellent in the resistance to occurrence of foams or black points, but also can be produced without the use of an annealing process for removal of carbon and nitrogen which results in the increase of equipment cost, and without the addition of an expensive element such as Nb or Ti which results in the increase of material cost.
摘要翻译：本发明公开了一种非时效的提供，高度抗种子和抗黑斑点钢板搪瓷而不依赖于脱碳脱氮退火涉及生产成本增加，并且不添加昂贵元素，颜色：如铌和钛涉及提高合金的成本。不大于0.0018％，硅：：不大于0.020％，锰：0.10〜0.30％到，磷：0.010〜0.030％，硫：不超过该钢板是通过采用一种钢组合物，包含，以重量计，碳产生 0.030％以下，铝：不超过0.005％的氮：0.0008〜0.0050％的硼：不大于0.0050％和不低于0.6时的氮含量和氧：0.010〜0.05％，和调节的化学组合物钢和调节主要热轧条件来调节氮化物的形式。

4. 发明专利

NZ740281A Steel sheet and enameled product 未知
公开(公告)号：NZ740281A
公开(公告)日：2019-01-25
申请号：NZ74028116
申请日：2016-09-12
申请人： NIPPON STEEL CORP
发明人： KUSUMI KAZUHISA , TOMOKIYO TOSHIMASA , NISHIMURA SATOSHI
IPC分类号： C22C38/00 , C21D9/48 , C22C38/60
摘要： This steel sheet contains, in terms of mass%, up to 0.0060% C, 0.0010-0.050% Si, 0.05-0.50% Mn, 0.005-0.100% P, up to 0.0500% S, 0.0010-0.010% Al, 0.010-0.045% Cu, 0.0250-0.0700% O, and 0.0010-0.0045% N, with the remainder comprising Fe and unavoidable impurities. The steel sheet has a structure which comprises ferrite, and the ferrite located at a sheet-thickness-direction depth corresponding to 1/4 the sheet thickness from a surface of the steel sheet has an average crystal-grain diameter of 20.0 µm or smaller. The structure contains oxides containing Fe and Mn. Among the oxides, the number density of the oxides having diameters larger than 1.0 µm but not larger than 10 µm is 1.0×103-5.0×104grains/mm2, and the number density of the oxides having diameters of 0.1-1.0 µm is 5.0×103grains/mm2or greater.

5. 发明专利

AT546242T 未知
公开(公告)号：AT546242T
公开(公告)日：2012-03-15
申请号：AT05785864
申请日：2005-09-15
申请人： NIPPON STEEL CORP
发明人： KUSUMI KAZUHISA , SATO HIRONORI , ABE MASAYUKI , FUJITA NOBUHIRO , SUZUKI NORIYUKI , HAYASHI KUNIO , NAKAJIMA SHINYA , MAKI JUN , OOGAMI MASAHIRO , KANDA TOSHIYUKI , TAKAHASHI MANABU , TAKAHASHI YUZO
IPC分类号： B21D28/00 , B21D28/14 , B21D37/16 , C21D1/74 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/38
摘要： A high-strength part that excels in hydrogen embrittlement resistance and strength after high-temperature forming; and a process for producing the same. The atmosphere in a heating furnace before forming is regulated to one of ‰¤ 10% hydrogen volume fraction and ‰¤ 30°C dew point. As a result, the amount of hydrogen penetrating in a steel sheet during heating is reduced. After forming, there are sequentially carried out quench hardening in die assembly and post-working. As the method of post-working, there can be mentioned shearing followed by re-shearing or compression forming of sheared edge portion; punching with a cutting blade having a gradient portion at which the width of blade base is continuously reduced; punching with a punching tool having a curved blade with a protrudent configuration at the tip of cutting blade part, the curved blade having a shoulder portion of given curvature radius and/or given angle; fusion cutting; etc. Consequently, the tensile residual stress after punching is reduced and the performance of hydrogen embrittlement resistance is improved.

6. 发明公开

EP1790422A4 HIGH-STRENGTH PART AND PROCESS FOR PRODUCING THE SAME 有权转让
标题翻译：高强度零件与方法研究
公开(公告)号：EP1790422A4
公开(公告)日：2009-03-18
申请号：EP05785864
申请日：2005-09-15
申请人： NIPPON STEEL CORP
发明人： KUSUMI KAZUHISA , SATO HIRONORI , ABE MASAYUKI , FUJITA NOBUHIRO , SUZUKI NORIYUKI , HAYASHI KUNIO , NAKAJIMA SHINYA , MAKI JUN , OOGAMI MASAHIRO , KANDA TOSHIYUKI , TAKAHASHI MANABU , TAKAHASHI YUZO
IPC分类号： B21D28/00 , B21D28/14 , B21D37/16 , B21D53/88 , C21D1/74 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/38
CPC分类号： C22C38/04 , C21D1/673 , C21D1/74 , C21D8/0205 , C21D9/0068 , C21D9/48 , C21D2211/008 , C22C38/02 , C22C38/06 , C22C38/18 , C22C38/28
摘要： A high-strength part that excels in hydrogen embrittlement resistance and strength after high-temperature forming; and a process for producing the same. The atmosphere in a heating furnace before forming is regulated to one of = 10% hydrogen volume fraction and = 30°C dew point. As a result, the amount of hydrogen penetrating in a steel sheet during heating is reduced. After forming, there are sequentially carried out quench hardening in die assembly and post-working. As the method of post-working, there can be mentioned shearing followed by re-shearing or compression forming of sheared edge portion; punching with a cutting blade having a gradient portion at which the width of blade base is continuously reduced; punching with a punching tool having a curved blade with a protrudent configuration at the tip of cutting blade part, the curved blade having a shoulder portion of given curvature radius and/or given angle; fusion cutting; etc. Consequently, the tensile residual stress after punching is reduced and the performance of hydrogen embrittlement resistance is improved.

7. 发明专利

AU2016321009C1 Steel sheet and enameled product 未知
公开(公告)号：AU2016321009C1
公开(公告)日：2019-11-21
申请号：AU2016321009
申请日：2016-09-12
申请人： NIPPON STEEL CORP
发明人： KUSUMI KAZUHISA , TOMOKIYO TOSHIMASA , NISHIMURA SATOSHI
IPC分类号： C22C38/00 , C21D9/48 , C22C38/60
摘要： This steel sheet contains, in terms of mass%, up to 0.0060% C, 0.0010-0.050% Si, 0.05-0.50% Mn, 0.005-0.100% P, up to 0.0500% S, 0.0010-0.010% Al, 0.010-0.045% Cu, 0.0250-0.0700% O, and 0.0010-0.0045% N, with the remainder comprising Fe and unavoidable impurities. The steel sheet has a structure which comprises ferrite, and the ferrite located at a sheet-thickness-direction depth corresponding to 1/4 the sheet thickness from a surface of the steel sheet has an average crystal-grain diameter of 20.0 µm or smaller. The structure contains oxides containing Fe and Mn. Among the oxides, the number density of the oxides having diameters larger than 1.0 µm but not larger than 10 µm is 1.0×10

8. 发明专利

CA3050646A1 ALLOYED AL PLATED STEEL SHEET FOR HOT STAMPING AND HOT STAMPED STEEL MEMBER 未知
公开(公告)号：CA3050646A1
公开(公告)日：2018-08-09
申请号：CA3050646
申请日：2017-02-02
申请人： NIPPON STEEL CORP
发明人： FUDA MASAHIRO , MAKI JUN , FUJITA SOSHI , KUSUMI KAZUHISA , TABATA SHINICHIRO
IPC分类号： C23C2/12 , B21D22/20 , C21D1/18 , C21D9/00 , C21D9/46 , C22C21/00 , C22C38/00 , C22C38/38 , C23C2/28
摘要： The present invention is an alloyed-Al-plated steel sheet for hot stamping, the steel sheet having on a surface thereof an Al-Fe alloy layer that includes an A-phase (Fe-Al alloy phase containing 45-85% Fe and 4-13% Si) and has a thickness of 15 µm or greater, wherein the ratio of the length occupied by the A-phase in a topmost surface of a cross-section perpendicular to the surface of the steel sheet is 10% to 50%.

10. 发明专利

SI1790422T1 Postopek izdelave dela z visoko trdnostjo 未知
公开(公告)号：SI1790422T1
公开(公告)日：2012-07-31
申请号：SI200531478
申请日：2005-09-15
申请人： NIPPON STEEL CORP
发明人： KUSUMI KAZUHISA , SATO HIRONORI , ABE MASAYUKI , FUJITA NOBUHIRO , SUZUKI NORIYUKI , HAYASHI KUNIO , NAKAJIMA SHINYA , MAKI JUN , OOGAMI MASAHIRO , KANDA TOSHIYUKI , TAKAHASHI MANABU , TAKAHASHI YUZO
IPC分类号： B21D28/00 , B21D37/00 , B21D53/00 , C21D1/00 , C21D9/00 , C22C38/00

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