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    Plug member and mounting and dismounting device therefor
    1.
    发明申请
    Plug member and mounting and dismounting device therefor 审中-公开
    插头构件和安装和拆卸装置

    公开(公告)号：US20090321068A1

    公开(公告)日：2009-12-31

    申请号：US12385272

    申请日：2009-04-03

    申请人： Hiroki Kusuda ,  Yasuhisa Kasa ,  Mutsumi Tanida ,  Tadayoshi Fujisaka ,  Hisao Yamasaki

    发明人： Hiroki Kusuda ,  Yasuhisa Kasa ,  Mutsumi Tanida ,  Tadayoshi Fujisaka ,  Hisao Yamasaki

    IPC分类号： E21B23/00 ,  E21B33/12

    CPC分类号： B23B25/00 ,  B23B2260/126 ,  F16L55/132

    摘要： A plug member can be mounted to the end of a pipe and removed therefrom by automated operation.A mounting and dismounting device 21 for mounting and dismounting a plug member 11 with respect to an oil country tubular good P. The plug member 11 comprises an outer tube 12 having seal portions 16a and 16b and a circumferential groove 12a, a shuttle 13, a cap 14, and a shuttle biasing spring 15 secured to the cap 14 and the shuttle 13. The mounting and dismounting device 21 comprises a tubular holding body 22, a rod 23 which has a conical end portion 23a and which is disposed so as to move inside the tubular holding body 22, and moving means 24 and 25 which allow the tubular holding body 22 and the rod 23 to independently move. The tubular holding body 22 has ball-receiving holes 22a into which fit balls 26 which engage with the circumferential groove 12a. The tubular holding body 22 is inserted into the outer tube 12 through the proximal end of the tube so as to make its tip contact the end surface of the shuttle on the side of the proximal end, and the rod 23 is moved relative to the tubular holding body 22 so as to contact its end portion 23a with the balls 26 to make the balls 26 engage with the circumferential groove 12a, thereby connecting the tubular holding body 22 and the outer tube 12. The rod is moved relative to the tubular holding body 22 to retract the end portion 23a, thereby releasing the connection between the tubular holding body 22 and the outer tube 12.

    摘要翻译： 插塞构件可以安装到管道的端部并通过自动操作从其中移除。 一种用于相对于油井管件P安装和拆卸塞子构件11的安装和拆卸装置21.塞子构件11包括具有密封部分16a和16b的外管12和周向凹槽12a，梭13， 盖14，以及固定到盖14和梭13上的梭簧偏压弹簧15.安装和拆卸装置21包括管状保持体22，杆23，其具有圆锥形端部23a并且被设置成移动 管状保持体22内部以及允许管状保持体22和杆23独立移动的移动装置24和25。 管状保持体22具有与圆周槽12a接合的配合球26的球窝容纳孔22a。 管状保持体22通过管的近端插入外管12中，使其尖端在近端侧与梭子的端面相接触，并且杆23相对于管状体移动 保持体22使其端部23a与球26接触，以使球26与周向槽12a接合，从而连接管状保持体22和外管12.杆相对于管状保持体 22缩回端部23a，从而释放管状保持体22和外管12之间的连接。

    Continuous casting method of steel slab
    2.
    发明授权
    Continuous casting method of steel slab 失效
    钢板连铸法

    公开(公告)号：US5265665A

    公开(公告)日：1993-11-30

    申请号：US892154

    申请日：1992-06-02

    申请人： Tetsuya Fujii ,  Seiko Nara ,  Nagayasu Bessho ,  Hisao Yamasaki

    发明人： Tetsuya Fujii ,  Seiko Nara ,  Nagayasu Bessho ,  Hisao Yamasaki

    IPC分类号： B22D11/115 ,  B22D11/12 ,  B22D11/18 ,  B22D27/02

    CPC分类号： B22D11/122 ,  B22D11/115 ,  B22D11/186

    摘要： In a continuous casting of steel slab, a molten steel is provided having an oxygen concentration of not more than 35 ppm and is supplied from a tundish into a continuous casting mold through a straight immersion nozzle having an open end at the forward end thereof, the mold consisting of a combination of a pair of narrow face mold walls and a pair of wide face mold walls. A traveling magnetic field generating device is disposed on a central area of the outer surface of the wide face mold walls. While the open forward end of the nozzle is positioned in the magnetic field region of the traveling magnetic field generating device, a traveling magnetic field which is perpendicular to the wide face mold walls and which is traveling upward is applied to a flow of the molten steel discharged from the nozzle, thereby controlling the flow. Preferably, an upper or lower static magnetic field generating device or both of them may be also used.