Bolt fastening method
    1.
    发明公开
    Bolt fastening method 失效
    Bolzenbefestigungsverfahren。

    公开(公告)号:EP0170068A2

    公开(公告)日:1986-02-05

    申请号:EP85108102.6

    申请日:1985-06-29

    IPC分类号: G01L5/24

    CPC分类号: G01L5/24

    摘要: When a gradient of fastening torque for a bolt decreases by a certain amount from its maximum value, the bolt is further turned by a specific angle and the true or false of its yield point is detected based on the variations of torque, or torque gradient before and after this further bolt turning so that bolt fastening will be terminated only when true yield point has been detected.

    摘要翻译: 当螺栓的紧固扭矩的梯度从其最大值减小一定量时,螺栓进一步转动特定角度,并且基于扭矩或扭矩梯度的变化来检测其屈服点的真实或错误 并且在该另外的螺栓转动之后,仅当检测到真实的屈服点时才能终止螺栓紧固。

    A method for making sand molds
    3.
    发明公开
    A method for making sand molds 失效
    Verfahren zur Herstellung von Sandformen。

    公开(公告)号:EP0172937A1

    公开(公告)日:1986-03-05

    申请号:EP84110351.8

    申请日:1984-08-30

    CPC分类号: B22C15/08

    摘要: © in a method of preparing a sand mold in which mold sand within a mold frame (2) is squeezed from an upper side opposite to a lower side of the frame at which a pattern is embedded and also from said lower side, the squeezing from the lower side is made only after the squeezing from the upper side has been completed by about or more than 95% of a total squeezing stroke. The sand mold (3) thus prepared comes to have a desired hardness particularly at casting surfaces thereof.

    摘要翻译: 在制备砂模的方法中,模具框架(2)内的模具砂从与嵌入图案的框架的下侧相反的上侧从所述下侧挤压, 下侧仅在从上侧挤压已经完成约或大于总挤压行程的95%之后才制成。 如此制备的砂模(3)具有期望的硬度,特别是在其铸造表面。

    Improvement of screw tightening apparatus
    5.
    发明公开
    Improvement of screw tightening apparatus 失效
    Schraubvorrichtung。

    公开(公告)号:EP0160951A2

    公开(公告)日:1985-11-13

    申请号:EP85105448.6

    申请日:1985-05-03

    IPC分类号: B25B21/00 B23P19/06

    摘要: A screw tightening apparatus has a stand, a support framework attached slidably in the vertical direction to the stand, an arm section extending horizontally from and connected tumably in a horizontal plane to the support framework, a driving unit mounted on the base end of the arm section for turning the arm section, a screw tightening unit mounted on the leading end of the arm section, and a reaction force absorbing mechanism acted upon tightening a screw. The reaction force absorbing mechanism is provided in the screw tightening unit or the arm section.

    摘要翻译: 螺杆紧固装置具有支架,支撑框架,其在与支架垂直的方向上可滑动地安装,臂部分水平地水平延伸并且在水平面中可转动地连接到支撑框架;驱动单元,安装在臂的基端 用于转动臂部的部分,安装在臂部的前端上的螺钉紧固单元以及在拧紧螺钉时作用的反作用力吸收机构。 反作用力吸收机构设置在螺钉紧固单元或臂部。

    Bolt fastening method
    6.
    发明公开
    Bolt fastening method 失效
    螺栓紧固方法

    公开(公告)号:EP0170068A3

    公开(公告)日:1989-02-22

    申请号:EP85108102.6

    申请日:1985-06-29

    IPC分类号: G01L5/24

    CPC分类号: G01L5/24

    摘要: When a gradient of fastening torque for a bolt decreases by a certain amount from its maximum value, the bolt is further turned by a specific angle and the true or false of its yield point is detected based on the variations of torque, or torque gradient before and after this further bolt turning so that bolt fastening will be terminated only when true yield point has been detected.