METHOD FOR MANUFACTURING HIGH STRENGTH STEEL PLATE
    1.
    发明申请
    METHOD FOR MANUFACTURING HIGH STRENGTH STEEL PLATE 有权
    制造高强度钢板的方法

    公开(公告)号:US20110168304A1

    公开(公告)日:2011-07-14

    申请号:US13053879

    申请日:2011-03-22

    IPC分类号: C21D8/02

    摘要: A high strength steel plate containing 0.02 to 0.08% C, by mass, and has substantially a two phase microstructure of ferrite and bainite. The ferrite contains precipitates having a particle size of 30 nm or smaller grain size. The steel plate has a yield strength of 448 MPa or higher. A method for manufacturing the high strength steel plate which comprises hot rolling, accelerated cooling and reheating. The accelerated cooling is conducted down to a temperature of 300 to 600° C. at a cooling rate of 5° C./s or higher. The reheating is conducted up to a temperature of 550 to 700° C. at a heating rate of 0.5° C./s or higher.

    摘要翻译: 含有0.02〜0.08%C质量%的高强度钢板,并具有铁素体和贝氏体的两相显微组织。 铁素体含有粒径为30nm以下的析出物。 钢板的屈服强度为448MPa以上。 一种制造高强度钢板的方法,其包括热轧,加速冷却和再加热。 加速冷却以5℃/ s以上的冷却速度进行到300〜600℃的温度。 以0.5℃/ s以上的加热速度将再加热进行到550〜700℃的温度。

    UPPER TOOL DEVICE AND PUNCH THEREFOR
    2.
    发明申请
    UPPER TOOL DEVICE AND PUNCH THEREFOR 有权
    上位工具及其他设备

    公开(公告)号:US20080202307A1

    公开(公告)日:2008-08-28

    申请号:US12060436

    申请日:2008-04-01

    申请人: Shigeru ENDO

    发明人: Shigeru ENDO

    IPC分类号: B26F1/14

    摘要: An upper tool device includes: a punch body having a punch blade at a lower end of the punch body; a punch guide into which the punch body is fitted so as to be movable in vertical direction; an adjustment screw member provided above the punch guide, the adjustment screw member screwed with a screw formed on the punch body; a stripper unit including an urging unit urging the punch body in an upward direction; and a retainer collar including a stopper piece having a tip end disengageably engaged with a stopper formed on the punch body. In the device, the stripper unit is detachably provided in the upper tool device, and the retainer collar is provided between the punch guide and the stripper unit in a manner such that the retainer collar can be relatively rotated against the stripper unit.

    摘要翻译: 上部工具装置包括:冲头主体,其在冲头主体的下端具有冲压刀片; 冲头引导件,其中冲头主体被安装成可在垂直方向上移动; 设置在冲头引导件上方的调节螺丝部件,调节螺丝部件与形成在冲头本体上的螺钉拧紧; 剥离器单元,包括在向上方向上推动冲头主体的推压单元; 以及保持器套圈,其包括具有与形成在冲头主体上的止动件可分离地接合的末端的止动件。 在该装置中,脱模器单元可拆卸地设置在上部工具装置中,并且保持器套环以这样的方式设置在冲头引导件和剥离器单元之间,使得保持器套环可相对于剥离器单元相对旋转。