- 专利标题: Steel for crankshaft and method of manufacturing crankshaft using the same
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申请号: US16530696申请日: 2019-08-02
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公开(公告)号: US11319609B2公开(公告)日: 2022-05-03
- 发明人: Sung Hwan Kim , Chan Woo Kim
- 申请人: Hyundai Motor Company , KIA Motors Corporation , HYUNDAI STEEL COMPANY
- 申请人地址: KR Seoul; KR Seoul; KR Incheon
- 专利权人: Hyundai Motor Company,KIA Motors Corporation,HYUNDAI STEEL COMPANY
- 当前专利权人: Hyundai Motor Company,KIA Motors Corporation,HYUNDAI STEEL COMPANY
- 当前专利权人地址: KR Seoul; KR Seoul; KR Incheon
- 代理机构: Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
- 代理商 Peter F. Corless
- 优先权: KR10-2018-0129615 20181029
- 主分类号: C21D9/30
- IPC分类号: C21D9/30 ; C21D8/06 ; C21D6/00 ; C22C38/38 ; C22C38/28 ; C22C38/24 ; C22C38/00 ; F16C3/08
摘要:
Steel for a crankshaft includes 0.37 to 0.42 wt % of carbon (C), 0.55 to 0.70 wt % of silicon (Si), 1.45 to 1.65 wt % of manganese (Mn), 0.025 wt % or less (excluding 0 wt %) of phosphorus (P), 0.020 to 0.035 wt % of sulfur (S), 0.15 to 0.30 wt % of chromium (Cr), 0.035 to 0.055% of vanadium (V), and the remainder of Fe and other inevitable impurities. The steel for a crankshaft has strength that is maintained high even when reducing the amount of vanadium.
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