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    • 57. 发明申请
    • PIPE ELEMENT HAVING WEDGING GROOVE
    • 具有楔形槽的管件
    • WO2017132036A1
    • 2017-08-03
    • PCT/US2017/014015
    • 2017-01-19
    • VICTAULIC COMPANY
    • MADARA, Scott, D.SHAH, Amit, R.DOLE, Douglas, R.
    • F16L23/08F16L21/06
    • F16L21/06F16L17/04F16L17/06
    • A pipe element has a circumferential groove with a surface portion oriented at an angle with respect to its longitudinal axis. A surface portion of the groove adjacent to the angled surface portion is oriented perpendicular to the longitudinal axis. A mechanical coupling has projecting keys that engage the groove. The keys have mating surfaces that contact both the perpendicular and angled surface portions of the groove. When the pipe element and coupling are used in combination to form a pipe joint, axial load on the pipe, resisted by the mechanical coupling, is shared between the perpendicular and angled surface portions which results in a pipe joint that can withstand higher internal pressure than if the axial load were borne by the perpendicular surface portion alone.
    • 管件具有周向凹槽,该周向凹槽的表面部分相对于其纵向轴线以一定角度定向。 邻近倾斜表面部分的凹槽的表面部分垂直于纵向轴线取向。 机械联轴器具有与凹槽接合的突出键。 键具有接触凹槽的垂直和成角度的表面部分的配合表面。 当管元件和联轴器组合使用形成管接头时,由机械联轴器抵抗的管上的轴向负荷在垂直和成角度的表面部分之间共享,这导致管接头能承受比内部压力更高的内部压力 如果轴向负载仅由垂直表面部分承担。
    • 60. 发明申请
    • ROLLER FOR ROLL FORMING
    • 滚子成型辊
    • WO2016032722A1
    • 2016-03-03
    • PCT/US2015/044129
    • 2015-08-07
    • VICTAULIC COMPANY
    • OLESINSKA, Paulina, A.REILLY, William, C.
    • B21D17/04B21D22/16
    • B21D17/04B21H7/182
    • A roller for engaging an outer surface of a pipe element during roll forming has a perimeter region defined by three faces. A channel is positioned in one of the faces. The channel extends circumferentially around the perimeter region and provides a void space that reduces the contact area between the face and the side surface of a circumferential groove formed in the pipe element during roll forming. The reduced contact area reduces frictional heating of the pipe and roller as well as the tendency of the roller to slip relative to the floor surface of the groove due to axial force engendered when an asymmetrical groove is formed.
    • 在辊成形期间用于接合管元件的外表面的辊具有由三个面限定的周边区域。 一个通道位于其中一个面。 通道围绕周边区域周向延伸,并且提供空隙空间,其减小了在成形期间在管道元件中形成的周向凹槽的表面和侧表面之间的接触面积。 缩小的接触面积减小了管和辊的摩擦加热以及由于当形成不对称凹槽时产生的轴向力,辊相对于槽的地板表面滑动的倾向。