公开(公告)号：EP2463395A4

公开(公告)日：2016-06-22

申请号：EP10806517

申请日：2010-08-05

Applicant: NIPPON STEEL & SUMITOMO METAL CORP

Inventor： KOBAYASHI YOSHIFUMI ,  KAWANO KAZUYUKI ,  ITOH YASUNORI ,  SUZUKI SHINICHI ,  YAMANAKA SHINTARO

IPC: C22C38/00 ,  B21D22/20 ,  B21D24/00 ,  C21D1/34 ,  C21D1/70 ,  C21D8/04 ,  C21D9/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C4/04 ,  C23C4/18 ,  C23C26/00

CPC classification number: C23C4/04 ,  C21D8/0494 ,  C21D2221/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C4/18 ,  Y10T428/12229

Abstract: On part of a surface of a metal plate that is to be heated by radiant heat transfer with a near-infrared ray, a region where reflectance for a radiant ray is made lower than that of the original surface of the metal plate is formed. As reflectance reducing treatment, painting or thermal spraying in a blackish color, plating in a blackish color, treatment for increasing roughness of the surface of the metal plate, blasting, etching, blackening, surface layer quality changing treatment of the metal plate, or the like can be adopted. The metal plate is turned into a heated metal plate partially having a different temperature by being heated by radiant heat transfer, and thereafter, the heated metal plate is subjected to thermal processing accompanied by cooling, for example, by hot stamping.

Abstract translation: 在金属板的一个表面的一部分确实是通过用近红外线，在那里反射使辐射线是比金属板的原始表面的形成由下部的区域的辐射热传递来加热。 作为反射率降低处理，喷漆或热喷涂在一黑色的颜色，电镀在黑色系，疗程为增加粗糙度的金属板的表面的，喷砂，蚀刻，黑化处理，表面层的质量变化的治疗的金属板制成，或 等可以采用。 金属板是通过辐射传热被加热变成部分具有不同的温度加热的金属板，并且此后，被加热的金属板进行伴随着冷却，例如，通过热冲压热加工。

公开(公告)号：EP2982772A4

公开(公告)日：2017-01-04

申请号：EP14778399

申请日：2014-03-27

Applicant: NIPPON STEEL & SUMITOMO METAL CORP

Inventor： SUWA YOSHIHIRO ,  NONAKA TOSHIKI ,  SATO KOICHI ,  NARUSE MANABU ,  IWASA YASUNORI ,  KOBAYASHI YOSHIFUMI

IPC: C22C38/00 ,  B21D22/20 ,  C21D9/46 ,  C22C38/06 ,  C22C38/54 ,  C23C2/06

CPC classification number: C21D8/0205 ,  C21D1/673 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0278 ,  C21D9/46 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/28 ,  C23C2/405 ,  C25D7/0614

Abstract: A hot-stamped steel according to the present invention has a predetermined chemical composition, satisfies (5 × [Si] + [Mn]) / [C] > 10 when [C] is the amount of C by mass%, [Si] is the amount of Si by mass%, and [Mn] is the amount of Mn by mass%, includes 40% to 95% ferrite and 5% to 60% martensite in area fraction, and optionally further includes 10% or less pearlite in area fraction, 5% or less retained austenite in volume fraction, and less than 40% bainite in area fraction. The total of the area fraction of ferrite and the area fraction of martensite is 60% or more, the hardness of martensite measured with a nanoindenter satisfies H2 / H1

Abstract translation: 甲热冲压钢雅丁到本发明具有预定化学组成，SATIS外资企业（5×[硅] + [Mn]为）/ [C]> 10时[C]是通过质量％的C量，[硅] 以质量％计的硅的量，并且[Mn]为以质量％计的Mn数量，包括40％的铁素体95％和5％〜60％的马氏体以面积率，并且任选地还包括10％或更少珠光体 面积率，5％或更小的体积分数的残余奥氏体，而在面积率小于40％的贝氏体。 马氏体的铁素体和面积率的面积率的合计为60％以上，马氏体的具有纳米压头SATIS外资企业H2 / H1 <1.10和AHM <20测量的硬度，并且TS×»所有这是抗拉强度TS的产物 和扩孔率“是50000兆帕％以上。

公开(公告)号：EP2599889A4

公开(公告)日：2015-04-01

申请号：EP11819905

申请日：2011-08-23

Applicant: NIPPON STEEL & SUMITOMO METAL CORP

Inventor： KOBAYASHI YOSHIFUMI ,  ITO YASUNORI ,  KAWANO KAZUYUKI ,  YAEKURA TAKASHI

IPC: C23C2/06 ,  B21D22/20 ,  B21D24/00 ,  C21D1/673 ,  C23C2/28 ,  C25D5/26 ,  C25D5/50 ,  G01J5/00 ,  G01N25/02

CPC classification number: C21D8/0205 ,  B21D22/022 ,  C21D1/673 ,  C23C2/06 ,  C23C2/28 ,  C25D5/50 ,  G01J5/0003 ,  G01J5/12