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    Formed member made of steel sheet and method for producing same
    6.
    发明申请
    Formed member made of steel sheet and method for producing same 失效
    由钢板制成的构件及其制造方法

    公开(公告)号：US20020069938A1

    公开(公告)日：2002-06-13

    申请号：US09896118

    申请日：2001-07-02

    发明人： Katsunori Hanakawa ,  Kyoso Ishida ,  Mitsugi Fukahori

    IPC分类号： C23C008/26 ,  C23C008/04

    CPC分类号： C21D9/0068 ,  B62D25/02 ,  B62D25/04 ,  B62D29/007 ,  C21D8/0457 ,  C23C8/04 ,  C23C8/26

    摘要： A method for producing a formed member made of a steel sheet according to the present invention is characterized by preparing a steel sheet material having tensile strength of 500 MPa or less and containing a nitriding element; forming a formed member having a predetermined shape by performing a plastic forming on the steel sheet material; and performing a nitriding treatment on the formed member so that an average hardness in the sheet thickness direction of the resultant steel sheet member is Hv 300 or more by Vickers hardness, and further characterized in that the difference in hardness between the surface part and the inside center part in the thickness direction of the steel sheet member of the formed member is Hv 200 or less by Vickers hardness, thereby it is possible to reliably obtain a formed member having a sufficiently high strength after a nitriding treatment while ensuring a plastic formability of a steel sheet in obtaining a formed member made of a steel sheet member of high strength by performing a nitriding treatment after subjecting a steel sheet material to a plastic forming.

    摘要翻译： 本发明的钢板成形体的制造方法的特征在于，制备抗张强度为500MPa以下且含有氮化元素的钢板材， 通过在钢板材上进行塑性成型来形成具有预定形状的成形构件; 对所形成的构件进行氮化处理，使得所得到的钢板构件的板厚方向的平均硬度通过维氏硬度为Hv为300以上，其特征还在于，表面部和内侧之间的硬度差 成形部件的钢板部件的厚度方向的中心部分的维氏硬度为Hv以下200v以下，可以可靠地获得氮化处理后的强度足够高的成形部件，同时确保成形部件的塑性成形性 钢板通过在对钢板材进行塑性成形之后进行氮化处理而获得由高强度钢板构件制成的成形构件。

    Battery can, sheet for forming battery can, and method for manufacturing sheet
    7.
    发明授权
    Battery can, sheet for forming battery can, and method for manufacturing sheet 失效
    电池罐，电池罐成型用片材以及片材的制造方法

    公开(公告)号：US5576113A

    公开(公告)日：1996-11-19

    申请号：US187000

    申请日：1994-01-27

    申请人： Sugikawa Hirofumi ,  Michibata Sachio ,  Hayashi Keiichi

    发明人： Sugikawa Hirofumi ,  Michibata Sachio ,  Hayashi Keiichi

    IPC分类号： B21B1/22 ,  B21B1/26 ,  B21B1/36 ,  B21B1/38 ,  B21B3/02 ,  B21B13/02 ,  B21B45/00 ,  B21B45/02 ,  B21D22/21 ,  C21D8/04 ,  H01M2/02 ,  B32B15/02

    CPC分类号： C21D8/0478 ,  B21B3/02 ,  B21D22/21 ,  H01M2/0225 ,  H01M2/0262 ,  H01M2/027 ,  H01M2/0275 ,  H01M2/0287 ,  B21B1/227 ,  B21B1/26 ,  B21B1/36 ,  B21B13/023 ,  B21B2001/228 ,  B21B2001/383 ,  B21B45/004 ,  B21B45/0251 ,  C21D2251/00 ,  C21D8/0436 ,  C21D8/0457 ,  C21D8/0473 ,  Y10T428/12937 ,  Y10T428/12972

    摘要： A steel plate having a plated layer on the upper and lower surfaces thereof to be processed into a battery can which is cylindrical and open in one end thereof by drawing and ironing processing. The plated steel plate has more than 1.2 as a Lankford value (r) which is a width deformation degree in a lengthwise direction thereof/a thickness deformation degree in the lengthwise direction thereof, a width deformation degree in a widthwise direction thereof/a thickness deformation degree in the widthwise direction thereof, a width deformation degree in an oblique direction thereof/a thickness deformation degree in the oblique direction thereof. In-plane anisotropy .DELTA.r which is the difference among the Lankford values (r) is set to be less than .+-.0.15 so that the elongation coefficient of the plated steel plate in lengthwise, widthwise, and oblique directions is almost constant, i.e., so that the generation of earring can be prevented in drawing and ironing a sheet comprising the steel plate into the battery can. In order to make the elongation coefficient of the plated steel plate constant in the three directions, a very low carbon steel plate is used. The steel plate is cold-rolled at 80-90 %. The plated layer is allowed to have a granular structure by annealing it after it is plated.

    摘要翻译： 在其上表面和下表面上具有镀层的钢板，其被加工成电池罐，其通过拉丝和熨烫加工在其一端是圆柱形和敞开的。 电镀钢板的长度方向上的宽度变形度/长度方向的宽度变形度，宽度方向的宽度变形度/厚度变形量 宽度方向的宽度变形度，斜方向的宽度变形度/斜方向的厚度变形度。 兰克福德值（r）之间的面内各向异性DELTA r被设定为小于+/- 0.15，使得电镀钢板在纵向，横向和倾斜方向上的伸长系数几乎恒定，即 ，从而可以防止将包含钢板的片材拉伸和熨烫成电池罐来产生耳环。 为了使电镀钢板的伸长系数在三个方向上恒定，使用非常低的碳钢板。 钢板冷轧80-90％。 通过在电镀后对其进行退火，允许镀层具有粒状结构。

    Method of strengthening low carbon steel and product thereof
    8.
    发明授权
    Method of strengthening low carbon steel and product thereof 失效
    加强低碳钢及其制品的方法

    公开(公告)号：US3847682A

    公开(公告)日：1974-11-12

    申请号：US30639072

    申请日：1972-11-14

    申请人： ARMCO STEEL CORP

    发明人： HOOK R

    IPC分类号： C21D3/08 ,  C21D8/04 ,  C21D9/48

    CPC分类号： C21D8/0457 ,  C21D3/08 ,  C21D8/0473

    摘要： Deep drawing steel is strengthened by alloy-nitrogen precipitation strengthening to a minimum average yield strength of 50 ksi. A deoxidized, low carbon steel sheet stock or article formed therefrom, containing from about 0.02 percent to 0.2 percent titanium in solution, from about 0.025 percent to 0.3 percent columbium in solution, from about 0.025 percent to about 0.3 percent zirconium in solution, alone or in admixture, is heat treated at 1,100* - 1,350*F in an atmosphere containing ammonia in an amount insufficient, at the temperature and time involved, to permit formation of iron nitride.

    摘要翻译： 深拉钢通过合金 - 氮析出强化加强至最小平均屈服强度为50ksi。 一种脱氧的低碳钢板材或由其形成的制品，其含有溶液中约0.02％至0.2％的钛，溶液中的约0.025％至0.3％的铌，溶液中的约0.025％至约0.3％的锆，单独或 混合物在1100℃-1.350°F的温度和时间内在含有氨的气氛中进行热处理，以允许形成氮化铁。