公开(公告)号：EP2617509A4

公开(公告)日：2016-12-21

申请号：EP11825260

申请日：2011-09-16

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： YASUYAMA MASANORI ,  NAKAZAWA YOSHIAKI ,  TASAKA MASAHITO ,  SUZUKI TOSHIYA ,  NAKATA MASAHIRO ,  FUJIMOTO HIROKI ,  NISHIBATA HITOMI

IPC分类号： B23K11/00 ,  B21D5/08 ,  B21D22/00 ,  B21D22/20 ,  B23K9/00 ,  B23K10/02 ,  B23K26/20 ,  B60R19/03 ,  B62D25/04 ,  B62D25/20

CPC分类号： B32B3/28 ,  B21D5/08 ,  B21D21/00 ,  B21D22/00 ,  B21D22/208 ,  B21D35/007 ,  B21D49/00 ,  B21D53/88 ,  B23K31/022 ,  B23K2201/006 ,  B32B15/01 ,  B60R19/03 ,  B62D21/157 ,  B62D25/04 ,  Y10T29/49826 ,  Y10T428/12347 ,  Y10T428/1241

摘要： A formed member is provided which can be manufactured at a low cost, which has excellent dimensional accuracy, which has excellent axial crushing properties and three-point bending properties, which has excellent bending stiffness and torsional stiffness, and which is suitable for use in a component of an automobile. The formed member (20) has a reinforcing member (35) which is joined by a weld (40) provided on a ridge portion (28). It is manufactured by joining a flat sheet blank and a flat sheet reinforcing member (35) by a weld (40) and performing bending so that the weld (40) becomes a ridge portion (28).

公开(公告)号：EP2883976A4

公开(公告)日：2016-02-17

申请号：EP13828035

申请日：2013-08-05

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： TAKAHASHI HIROYUKI ,  IMAI KAZUHITO ,  NISHIBATA HITOMI

IPC分类号： C23C2/06 ,  B32B15/01 ,  C21D1/18 ,  C21D8/02 ,  C21D9/00 ,  C21D9/46 ,  C22C18/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/58 ,  C23C2/28 ,  C23C2/40

CPC分类号： B32B15/013 ,  C21D1/18 ,  C21D1/673 ,  C21D8/0205 ,  C21D8/0247 ,  C21D9/46 ,  C21D2211/005 ,  C22C18/00 ,  C22C18/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  Y10T428/12799

摘要： A galvanized steel sheet for hot forming, the galvanized steel sheet including a galvanized film provided on a surface of a steel sheet, wherein the steel sheet has a chemical composition consisting of, in mass%, C: 0.02% to 0.58%, Mn: 0.5% to 3.0%, sol. Al: 0.005% to 1.0%, a predetermined element(s) as necessary; Si: less than or equal to 2.0%, P: less than or equal to 0.03%, S: less than or equal to 0.004%, N: less than or equal to 0.01%, and the balance: Fe and impurities, wherein a content of Mn in a portion from an interface of the steel sheet and the galvanized film to a depth of 5 µm is more than or equal to 0.3 mass %, wherein the galvanized film has a plating coverage of 40 g/m 2 to 110g/m 2 , an Al content of more than or equal to 150 mg/m 2 within the galvanized film, and an Al concentration of less than or equal to 0.5 mass %, and wherein the galvanized steel sheet is used for an application in which the galvanized steel sheet is heated to 700°C or above and is then subjected to hot forming.

摘要翻译： 一种用于热成型的镀锌钢板，所述镀锌钢板包括设置在钢板表面上的镀锌膜，其中所述钢板具有以质量％计含有C：0.02％至0.58％的化学组成，Mn： 0.5〜3.0％，溶胶。 Al：0.005〜1.0％，必要时的规定元素; Si：小于或等于2.0％，P：小于或等于0.03％，S：小于或等于0.004％，N：小于或等于0.01％，余量：Fe和杂质，其中a 从钢板和镀锌膜的界面到5μm深度的部分Mn的含量为0.3质量％以上，其中镀覆膜的电镀覆盖率为40g / m 2〜110g / m 2，镀锌膜中Al含量大于或等于150mg / m 2，Al浓度小于或等于0.5质量％，其中镀锌钢板用于其中 将镀锌钢板加热至700℃以上，然后进行热成形。

公开(公告)号：EP3202519A4

公开(公告)日：2018-03-21

申请号：EP15847041

申请日：2015-10-02

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： ZENIYA TASUKU ,  NISHIBATA HITOMI ,  YASUYAMA MASANORI

IPC分类号： B23K1/19 ,  B21D22/02 ,  B21D22/20 ,  B23K1/00 ,  B23K31/02 ,  B23K35/28 ,  B23K35/30 ,  B23K101/18 ,  B23K103/04 ,  B23K103/16 ,  C21D1/18 ,  C21D9/00 ,  C21D9/50 ,  C22C9/02 ,  F16B5/08

CPC分类号： C21D9/505 ,  B21D22/022 ,  B21D22/20 ,  B23K1/00 ,  B23K1/19 ,  B23K31/02 ,  B23K35/28 ,  B23K35/30 ,  B23K2203/04 ,  B23K2203/166 ,  C21D1/18 ,  C21D9/00 ,  C21D9/50 ,  C22C9/02 ,  F16B5/08

摘要： A brazed joint having excellent tensile strength (TSS and CTS) and a method of production of the same are provided. A sheet combination 200 comprised of steel sheets 210, 220 between which a brazing filler metal 230 is clamped is heated at a temperature of the Ac3 point of the steel sheet (matrix material) or more. The Ar3 point of the regions near the brazing filler metal at the steel sheets is made higher than the Ar3 point of the steel sheets (matrix material), then the quenching start temperature X is made a temperature of the Ar3 point of the steel sheet (matrix material) or less and hot stamping is performed to produce a brazed joint.