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    Manufacturing method of carbon steel sheet superior in formability
    1.
    发明授权
    Manufacturing method of carbon steel sheet superior in formability 有权
    碳钢板的成型性优良的制造方法

    公开(公告)号：US08197616B2

    公开(公告)日：2012-06-12

    申请号：US12158961

    申请日：2006-12-26

    申请人： Kyoo-Young Lee ,  Gyo-Sung Kim ,  Han-Chul Shin ,  Chang-Hoon Lee ,  Kee-Cheol Park ,  Jae-Chun Jeon

    发明人： Kyoo-Young Lee ,  Gyo-Sung Kim ,  Han-Chul Shin ,  Chang-Hoon Lee ,  Kee-Cheol Park ,  Jae-Chun Jeon

    IPC分类号： C21D8/04 ,  C21D8/02

    CPC分类号： C22C38/04 ,  C21D1/32 ,  C21D8/0263 ,  C21D9/46 ,  C21D2211/002 ,  C21D2211/003 ,  C21D2211/004 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/32

    摘要： A carbon steel sheet having high formability due to a microscopic and uniform carbide distribution and having a good characteristic of final heat treatment, and a manufacturing method thereof. The carbon steel sheet having excellent formability, includes, in wt %, C at 0.2-0.5%, Mn at 0.1-1.2%, Si at less than or equal to 0.4%, Cr at less than or equal to 0.5%, Al at 0.01-0.1%, S at less than or equal to 0.012%, Ti at less than or equal to 0.5×48/14×[N]% when the condition of B(atomic %)/N(atomic %)>1 is satisfied or by 0.5×48/14×[N]% to 0.03% when the condition of B and N is not satisfied, B at 0.0005-0.0080%, N at less than or equal to 0.006%, Fe, and extra inevitable elements; an average size of carbide is less than or equal to 1 μm; and an average grain size of ferrite is less than or equal to 5 μm.

    摘要翻译： 由于碳化物分布微观均匀而具有良好的最终热处理特性的高成形性碳钢板及其制造方法。 具有优异成形性的碳钢板以重量％计含有0.2-0.5％的C，0.1-1.2％的Mn，小于或等于0.4％的Si，小于或等于0.5％的Cr，小于或等于0.5％的Cr 0.01-0.1％，S小于或等于0.012％时，B（原子％）/ N（原子％）> 1的条件为小于或等于0.5×48/14×[N] 满足或当不满足B和N的条件时为0.5×48/14×[N]％至0.03％，B为0.0005-0.0080％，N为小于或等于0.006％，Fe和额外的不可避免的元素 ; 碳化物的平均尺寸小于或等于1μm; 铁素体的平均粒径小于或等于5μm。

    Carbon Steel Sheet Superior in Formability and Manufacturing Method Thereof
    4.
    发明申请
    Carbon Steel Sheet Superior in Formability and Manufacturing Method Thereof 有权
    碳钢板的成型性和制造方法优越

    公开(公告)号：US20080295923A1

    公开(公告)日：2008-12-04

    申请号：US12158961

    申请日：2006-12-26

    申请人： Kyoo-Young Lee ,  Gyo-Sung Kim ,  Han-Chul Shin ,  Chang-Hoon Lee ,  Kee-Cheol Park ,  Jea-Chun Jeon

    发明人： Kyoo-Young Lee ,  Gyo-Sung Kim ,  Han-Chul Shin ,  Chang-Hoon Lee ,  Kee-Cheol Park ,  Jea-Chun Jeon

    IPC分类号： C21D8/00 ,  C22C38/04

    CPC分类号： C22C38/04 ,  C21D1/32 ,  C21D8/0263 ,  C21D9/46 ,  C21D2211/002 ,  C21D2211/003 ,  C21D2211/004 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/32

    摘要： A carbon steel sheet having high formability due to a microscopic and uniform carbide distribution and having a good characteristic of final heat treatment, and a manufacturing method thereof. The carbon steel sheet having excellent formability, includes, in wt %, C at 0.2-0.5%, Mn at 0.1-1.2%, Si at less than or equal to 0.4%, Cr at less than or equal to 0.5%, Al at 0.01-0.1%, S at less than or equal to 0.012%, Ti at less than or equal to 0.5×48/14×[N]% when the condition of B(atomic %)/N(atomic %)>1 is satisfied or by 0.5×48/14×[N]% to 0.03% when the condition of B and N is not satisfied, B at 0.0005-0.0080%, N at less than or equal to 0.006%, Fe, and extra inevitable elements; an average size of carbide is less than or equal to 1 μm; and an average grain size of ferrite is less than or equal to 5 μm.

    摘要翻译： 由于碳化物分布微观均匀而具有良好的最终热处理特性的高成形性碳钢板及其制造方法。 具有优异成形性的碳钢板以重量％计含有0.2-0.5％的C，0.1-1.2％的Mn，小于或等于0.4％的Si，小于或等于0.5％的Cr，小于或等于0.5％的Cr 0.01-0.1％，小于或等于0.012％的S，当满足B（原子％）/ N（原子％）> 1的条件时小于或等于0.5×48/14×[N]％的Ti或 当不满足B和N的条件时，为0.5×48/14×[N]％至0.03％，B为0.0005-0.0080％，N为小于或等于0.006％，Fe为额外不可避免的元素; 碳化物的平均尺寸小于或等于1um; 铁素体的平均粒径小于或等于5μm。