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。

公开(公告)号：US08685181B2

公开(公告)日：2014-04-01

申请号：US13471529

申请日：2012-05-15

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： C21D8/02 ,  C22C38/04 ,  C22C38/14 ,  C22C38/32

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]% 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包括以重量％计，C为0.2-0.5％，Mn为0.1-1.2％，Si为小于或等于0.4％，Cr为小于或等于0.5％，Al为0.01 -0.1％，S小于或等于0.012％，当不满足B和N的条件时，Ti小于或等于0.5×48/14×[N]％至0.03％，B为0.0005-0.0080 ％，N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。

公开(公告)号：US20120222786A1

公开(公告)日：2012-09-06

申请号：US13471529

申请日：2012-05-15

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： C21D8/02 ,  C22C38/14 ,  C22C38/02 ,  C22C38/06 ,  C22C38/32 ,  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] % 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包括以重量％计，C为0.2-0.5％，Mn为0.1-1.2％，Si为小于或等于0.4％，Cr为小于或等于0.5％，Al为0.01 -0.1％，S小于或等于0.012％，当不满足B和N的条件时，Ti小于或等于0.5×48/14×[N]％至0.03％，B为0.0005-0.0080 ％，N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。

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。

公开(公告)号：US20140150930A1

公开(公告)日：2014-06-05

申请号：US14232784

申请日：2011-07-15

申请人： Kyoo-Young Lee ,  Jin-Keun Oh ,  Jong-Sang Kim ,  Tae-Kyo Han

发明人： Kyoo-Young Lee ,  Jin-Keun Oh ,  Jong-Sang Kim ,  Tae-Kyo Han

IPC分类号： C22C38/38 ,  C21D8/02 ,  C22C38/08 ,  C22C38/00 ,  C22C38/34 ,  C22C38/02 ,  C22C38/28 ,  C22C38/22 ,  C22C38/14 ,  C22C38/12 ,  C22C38/06 ,  C22C38/04 ,  B21B1/02 ,  C22C38/32

摘要： The present invention relates to a hot press forming steel plate made of a composition comprising: 0.3-1.0 wt % of C; 0.0-4.0 wt % of Mn; 1.0-2.0 wt % of Si; 0.01-2.0 wt % of Al; 0.015 wt % or less of S; 0.01 wt % or less of N; and the remainder being Fe and unavoidable impurities. Further, the present. invention relates to a method for manufacturing the hot press forming steel plate, characterized by comprising the steps of: heating, to between 1100 and 1300° C., a steel slab having the composition; performing hot rolling finishing between. an Ar3 transformation point and 950° C.; and performing winding between MS and 720° C. Further, the present invention. relates to a hot press formed member characterized by having the composition, and having a dual phase microstructure made of bainite and residual austenite. In addition, the present invention relates to a method for manufacturing the hot press formed member, characterized by comprising the steps of: heating the steel plate having the composition to a temperature of an Ac3 point or higher; hot press molding the heated steel plate; performing cooling at a cooling speed of 20° C./sec or higher to a temperature between MS and 350° C.; and performing a heat treatment in a heating furnace between MS and 550° C.

摘要翻译： 本发明涉及一种由以下组合物制成的热压成型钢板：包含：0.3-1.0重量％的C; 0.0-4.0重量％的Mn; 1.0-2.0重量％的Si; 0.01-2.0重量％的Al; 0.015重量％以下的S; 0.01重量％以下的N; 余量为Fe和不可避免的杂质。 此外，现在。 本发明涉及一种热压成型钢板的制造方法，其特征在于，包括以下步骤：将具有该组成的钢坯加热至1100〜1300℃; 进行热轧整理。 Ar3转化点，950℃。 并且在MS和720℃之间进行卷绕。此外，本发明。 涉及一种热压成型构件，其特征在于具有该组成，并且具有由贝氏体和残余奥氏体构成的双相微结构。 另外，本发明涉及一种热压成形构件的制造方法，其特征在于，包括以下步骤：将具有该组成的钢板加热至Ac3点以上的温度; 热压成型加热钢板; 以20℃/秒以上的冷却速度进行冷却至MS与350℃之间的温度。 并在加热炉中在MS与550℃之间进行热处理。

公开(公告)号：US08465601B2

公开(公告)日：2013-06-18

申请号：US12745621

申请日：2008-12-05

申请人： Young-Roc Im ,  Jae-Kon Lee ,  Kyoo-Young Lee ,  Yeong-Woo Jeon ,  Jae-Hwa Ryu ,  Kyong-Su Park

发明人： Young-Roc Im ,  Jae-Kon Lee ,  Kyoo-Young Lee ,  Yeong-Woo Jeon ,  Jae-Hwa Ryu ,  Kyong-Su Park

IPC分类号： C22C38/58 ,  C22C38/50 ,  C22C38/06 ,  C22C38/02 ,  C21D9/00

CPC分类号： C22C38/02 ,  C21D1/20 ,  C21D8/0226 ,  C21D8/0263 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/002 ,  C22C38/06 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/56 ,  C22C38/58

摘要： A high carbon steel sheet having superior strength and ductility and a method for manufacturing the same comprising: 0.2 to 1.0 wt % carbon (C), 0 to 3.0 wt % silicon (Si), 0 to 3.0 wt % manganese (Mn), 0 to 3.0 wt % chromium (Cr), 0 to 3.0 wt % nickel (Ni), 0 to 0.5 wt % molybdenum (Mo), 0 to 3.0 wt % aluminum (Al), 0 to 0.01 wt % boron (B), 0 to 0.5 wt % titanium (Ti), and the remainder substantially being iron (Fe) and inevitable impurities. The contents of carbon, manganese, chromium, and nickel satisfy the following Equation 1, and the contents of silicon and aluminum satisfy the following Equation 2: (3.0−2.5×C)wt %≦(Mn+Cr+Ni/2)≦8.5 wt %—(Equation 1) Si+Al>1.0 wt % (Equation 2).

摘要翻译： 具有优异的强度和延展性的高碳钢板及其制造方法包括：0.2〜1.0重量％的碳（C），0〜3.0重量％的硅（Si），0〜3.0重量％的锰（Mn），0 至3.0重量％的铬（Cr），0-3.0重量％的镍（Ni），0-0.5重量％的钼（Mo），0-3.0重量％的铝（Al），0-0.01重量％的硼（B） 至0.5重量％的钛（Ti），其余基本上为铁（Fe）和不可避免的杂质。 碳，锰，铬和镍的含量满足下式1，硅铝的含量满足下式2（3.0-2.5×C）wt％@（Mn + Cr + Ni / 2）@ 8.5重量％ - （式1）Si + Al>约2.0重量％（式2）。

公开(公告)号：US20100307641A1

公开(公告)日：2010-12-09

申请号：US12745621

申请日：2008-12-05

申请人： Young-Roc Im ,  Jae-Kon Lee ,  Kyoo-Young Lee ,  Yeong-Woo Jeon ,  Jae-Hwa Ryu ,  Kyong-Su Park

发明人： Young-Roc Im ,  Jae-Kon Lee ,  Kyoo-Young Lee ,  Yeong-Woo Jeon ,  Jae-Hwa Ryu ,  Kyong-Su Park

IPC分类号： C21D8/02 ,  C22C38/54 ,  C21D11/00

CPC分类号： C22C38/02 ,  C21D1/20 ,  C21D8/0226 ,  C21D8/0263 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/002 ,  C22C38/06 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/56 ,  C22C38/58

摘要： A high carbon steel sheet having superior strength and ductility and a method for manufacturing the same comprising: 0.2 to 1.0 wt % carbon (C), 0 to 3.0 wt % silicon (Si), 0 to 3.0 wt % manganese (Mn), 0 to 3.0 wt % chromium (Cr), 0 to 3.0 wt % nickel (Ni), 0 to 0.5 wt % molybdenum (Mo), 0 to 3.0 wt % aluminum (Al), 0 to 0.01 wt % boron (B), 0 to 0.5 wt % titanium (Ti), and the remainder substantially being iron (Fe) and inevitable impurities. The contents of carbon, manganese, chromium, and nickel satisfy the following Equation 1, and the contents of silicon and aluminum satisfy the following Equation 2: (3.0−2.5×C)wt %≦(Mn+Cr+Ni/2)≦8.5 wt %—(Equation 1) Si+Al>1.0 wt % (Equation 2).

摘要翻译： 具有优异的强度和延展性的高碳钢板及其制造方法包括：0.2〜1.0重量％的碳（C），0〜3.0重量％的硅（Si），0〜3.0重量％的锰（Mn），0 至3.0重量％的铬（Cr），0-3.0重量％的镍（Ni），0-0.5重量％的钼（Mo），0-3.0重量％的铝（Al），0-0.01重量％的硼（B） 至0.5重量％的钛（Ti），其余基本上为铁（Fe）和不可避免的杂质。 碳，锰，铬和镍的含量满足下式1，硅铝的含量满足下式2（3.0-2.5×C）wt％＆nlE;（Mn + Cr + Ni / 2） ＆nlE; 8.5wt％ - （等式1）Si + Al> 1.0wt％（等式2）。