发明公开
- 专利标题: BAINITISCHE STÄHLE FÜR PKW UND LEICHTE NKW KUGELZAPFEN
- 专利标题(英): Bainitic steels for passenger car and light commercial vehicle ball pins
- 专利标题(中): 球头螺栓贝氏体钢乘用车和轻型卡车
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申请号: EP10714606.0申请日: 2010-04-02
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公开(公告)号: EP2414552A1公开(公告)日: 2012-02-08
- 发明人: KRUSE, Jochen , URLAU, Ulrich , HASLER, Stephan
- 申请人: Swiss Steel AG
- 申请人地址: Emmenweidstrasse 90 6020 Emmenbrücke CH
- 专利权人: Swiss Steel AG
- 当前专利权人: Swiss Steel AG
- 当前专利权人地址: Emmenweidstrasse 90 6020 Emmenbrücke CH
- 代理机构: Schmauder & Partner AG Patent- & Markenanwälte VSP
- 优先权: DE102009016079 20090403
- 国际公布: WO2010112611 20101007
- 主分类号: C21D8/06
- IPC分类号: C21D8/06 ; C22C38/02 ; C22C38/04
摘要:
The invention relates to a ball pin made of a steel comprising a bainitic microstructure having the following composition in weight percent: iron, and - 0.05 to 0.15 carbon - 0.10 to 0.4 silicon - 1.0 to 2.5 manganese - 0.0015 (15 ppm) to 0.0120 (120 ppm) boron, in total 0.06 to 0.30 of the elements vanadium, niobium, titanium. A method for producing the ball pin comprises at least the following steps: melting the steel; casting the steel in ingot casting or continuous casting; hot rolling; controlled cooling after the hot rolling; cold drawing; extrusion.
公开/授权文献
- EP2414552B1 KUGELZAPFEN AUS BAINITISCHEN STÄHLEN FÜR PKW UND LEICHTE LKW 公开/授权日:2016-10-26
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