公开(公告)号：EP3167092A1

公开(公告)日：2017-05-17

申请号：EP15797015.3

申请日：2015-07-06

申请人： Tata Steel IJmuiden BV

发明人： HANLON, David Neal ,  ZUIJDERWIJK, Marga Josina ,  VAN BOHEMEN, Stefanus Matheus Cornelis

IPC分类号： C22C38/04 ,  C22C38/38 ,  C21D9/46 ,  C23C2/06 ,  C23C2/40 ,  C22C18/00 ,  C22C18/02

CPC分类号： C22C38/04 ,  C21D9/46 ,  C22C18/00 ,  C22C18/02 ,  C22C38/02 ,  C22C38/06 ,  C22C38/38 ,  C23C2/02 ,  C23C2/06 ,  C23C2/40

摘要： The invention relates to a steel strip having a hot dip zinc based coating, the steel strip having the following composition, in weight%,: C: 0.17 - 0.24 Mn:. 1.8 - 2.5 Si: 0.65 - 1.25 Al: ≤ 0.3 optionally: Nb: ≤ 0.1 and/or V: ≤ 0.3 and/or Ti: ≤ 0.15 and/or Cr: ≤ 0.5 and/or Mo: ≤ 0.3, the remainder being iron and unavoidable impurities, with a Si/Mn ratio ≤ 0.5 and a Si/C ratio ≥ 3.0, with an Mn equivalent ME of at most 3.5, wherein ME = Mn + Cr + 2 Mo (in wt.%) having a microstructure with (in vol.%): ferrite: 0 - 40 bainite: 20 - 70 martensite: 7 - 30 retained austenite: 5 - 20 pearlite: ≤ 2 cementite: ≤ 1 having a tensile strength in the range of 960 - 1100 MPa, a yield strength of at least 500 MPa, and a uniform elongation of at least 12%.

摘要翻译： 本发明涉及具有基于热浸镀锌层，具有以下组成钢带的钢条，以重量％计，C：0:17到12时24分的Mn： 1.8 - 2.5的Si：0.65 - 1.25铝：≤0.3 OPTIONALLY：铌：≤0.1和/或V：≤0.3和/或Ti：≤12:15和/或Cr：≤0.5和/或Mo：≤0.3，其余为 铁和不可避免的杂质，具有的Si / Mn比≤0.5和Si / C比≥3.0，与Mn当量ME至多3.5，worin ME =锰+ CR + 2的Mo（以wt。％）具有微结构 用：铁素体：0 - 40贝氏体：（在体积％。）20-70马氏体：7-30残留奥氏体：5〜20珠光体：≤2渗碳：具有在960-1100兆帕的范围内的抗张强度≤1， 至少500MPa的屈服强度和至少12％的均匀延伸率。

公开(公告)号：EP3167092B1

公开(公告)日：2018-03-28

申请号：EP15797015.3

申请日：2015-07-06

申请人： Tata Steel IJmuiden BV

发明人： HANLON, David Neal ,  ZUIJDERWIJK, Marga Josina ,  VAN BOHEMEN, Stefanus Matheus Cornelis

IPC分类号： C23C2/02 ,  C22C38/02 ,  C22C38/06 ,  C21D9/46 ,  C23C2/06 ,  C23C2/40 ,  C22C18/00 ,  C22C38/04 ,  C22C38/38

CPC分类号： C22C38/04 ,  C21D9/46 ,  C22C18/00 ,  C22C18/02 ,  C22C38/02 ,  C22C38/06 ,  C22C38/38 ,  C23C2/02 ,  C23C2/06 ,  C23C2/40

摘要： The invention relates to a steel strip having a hot dip zinc based coating, the steel strip having the following composition, in weight%,: C: 0.17 - 0.24 Mn:. 1.8 - 2.5 Si: 0.65 - 1.25 Al: ≤ 0.3 optionally: Nb: ≤ 0.1 and/or V: ≤ 0.3 and/or Ti: ≤ 0.15 and/or Cr: ≤ 0.5 and/or Mo: ≤ 0.3, the remainder being iron and unavoidable impurities, with a Si/Mn ratio ≤ 0.5 and a Si/C ratio ≥ 3.0, with an Mn equivalent ME of at most 3.5, wherein ME = Mn + Cr + 2 Mo (in wt.%) having a microstructure with (in vol.%): ferrite: 0 - 40 bainite: 20 - 70 martensite: 7 - 30 retained austenite: 5 - 20 pearlite: ≤ 2 cementite: ≤ 1 having a tensile strength in the range of 960 - 1100 MPa, a yield strength of at least 500 MPa, and a uniform elongation of at least 12%.

公开(公告)号：EP3122486A1

公开(公告)日：2017-02-01

申请号：EP15719148.7

申请日：2015-03-23

申请人： Tata Steel IJmuiden BV

发明人： HANLON, David Neal ,  VAN BOHEMEN, Stefanus Matheus Cornelis ,  HENSEN, Guido Cornelis

IPC分类号： B21D37/16 ,  C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/38 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C30/00

CPC分类号： C22C38/38 ,  C21D1/673 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C10/28 ,  C23C10/60

摘要： The invention relates to a method for hot forming a part, wherein the hot forming is performed starting with a metal coated steel blank, which is heated to a temperature between the Ac3-temperatur of the steel and 1000° C in a furnace, after which the heated blank is transported to a hot forming press, and the heated blank is pressed in the hot forming press to form a part. According to the invention, the steel has the following composition in weight%: C: 0.10 - 0.25, Mn: 1.6 - 2.6, Si:

摘要翻译： 本发明涉及一种用于热成型部件的方法，其中热成型由金属涂层钢坯开始，金属涂层钢坯被加热至钢的Ac 3 - 温度和炉中1000℃之间的温度，之后 将加热的坯料输送到热成型压机，并将加热的坯料压在热成型压机中以形成部分。 根据本发明，钢具有以下重量％的组成：C：0.10-0.25，Mn：1.6-2.6，Si：<0.4，Cr：<1.0，Al：<0.5，P：<0.02，S： 0.004，O：<0.008，N：<0.03，B：<0.0004，任选的Ti：<0.1，Mo：<0.5，Nb：<0.3，V：<0.5，Ca：<0.05，其余为铁和 不可避免的杂质，并且坯料在炉和热成型压机之间冷却，使得坯料在放置在热成型压机中时具有至多770℃和至少450℃的温度，并且热成型部件处于 最少部分马氏体。