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    • 7. 发明申请
    • FITTING FOR METAL PIPE AND TUBING
    • 适用于金属管和管件
    • WO2005019716A1
    • 2005-03-03
    • PCT/US2004/026094
    • 2004-08-12
    • SWAGELOK COMPANYWILLIAMS, Peter, C.
    • WILLIAMS, Peter, C.
    • F16L19/065
    • F16L19/14F16L19/10
    • A tube fitting (50) that uses only two components, namely a fitting body (54) and a fitting nut (52). The nut (52) and body (54) are adapted to be threadably coupled together by relative rotation therebetween. The nut (52) includes an integral tube gripping ring (80) that cooperates with a camming surface (88) on the body (54) when the fitting is made-up. The camming surface (88) preferably has a steep camming angle. The ring (80) is radially compressed against the tube (13) outer wall to form a seal and a tight tube grip. The ring also forms a line contact-type seal against the camming surface. The ring (80) is designed to have a hinging action and to plastically deform during pull-up to embed into the tubing for excellent tube grip, and an axially adjacent swage or collet zone that isolates any stress riser resulting from the embedding action from vibration effects. The fitting components, and particularly the ring (80), may be case hardened. The fitting (50) may include a self-gauging feature to indicate sufficient pull-up and to prevent excessive pull-up. Also provided is a single ferrule tube fitting that uses a steep camming surface and has a hardness ratio that is at least about 3.3 times the hardness of the stainless steel tube end on the Vickers scale.
    • 仅使用两个部件即管件本体(54)和安装螺母(52)的管件(50)。 螺母(52)和主体(54)适于通过它们之间的相对旋转而螺纹连接在一起。 螺母(52)包括一体的管夹环(80),当配件组装时,其与主体(54)上的凸轮表面(88)配合。 凸轮表面(88)优选地具有陡峭的凸轮角度。 环(80)径向地压靠在管(13)外壁上以形成密封和紧密的管夹。 环也形成针对凸轮表面的线接触型密封。 环(80)被设计成具有铰接作用并且在上拉期间塑性变形以嵌入到用于优异管夹的管道中,以及轴向相邻的挤压或夹头区域,其将由嵌​​入动作引起的任何应力提升器与振动隔离 效果。 装配部件,特别是环(80)可以是表面硬化的。 配件(50)可以包括自测量特征以指示足够的上拉和防止过度的上拉。 还提供了使用陡峭的凸轮表面的单个套圈管配件,并且其硬度比至少在维氏尺度上不锈钢管端部的硬度的3.3倍。
    • 10. 发明申请
    • TUBE FITTING FOR STAINLESS STEEL TUBING
    • 用于不锈钢管的管件接头
    • WO2002063194A2
    • 2002-08-15
    • PCT/US2002/003430
    • 2002-02-06
    • SWAGELOK COMPANYWILLIAMS, Peter, C.
    • WILLIAMS, Peter, C.
    • F16L
    • F16L19/14F16L19/10
    • A tube fitting that uses only two components, namely a fitting body and a fitting nut. The nut and body are adapted to be threadably coupled together by relative rotation therebetween. The nut includes an integral tube gripping ring that cooperates with a camming surface on the body when the fitting is made-up. The camming surface preferably has a steep camming angle. The ring is radially compressed against the tube outer wall to form a seal and a tight tube grip. The ring also forms a line contact-type seal against the camming surface. The ring is designed to have a hinging action and to plastically deform during pull-up to embed into the tubing for excellent tube grip, and an axially adjacent swage or collet zone that isolates any stress riser resulting from the embedding action from vibration effects. The fitting components, and particularly the ring, may be case hardened, the fitting may include a self-gauging feature to indicate sufficient pull-up to prevent excessive pull-up. Also provided is a single ferrule tube fitting that uses a steep camming surface and is at least about 3.3 times harder than the stainless steel tube end.
    • 仅使用两个部件即配合体(54)和配合螺母(52)的管接头(50)。 螺母和本体适于通过它们之间的相对旋转而螺纹连接在一起。 螺母包括一体的管夹紧环(80),当配件组装时,其与主体上的凸轮表面(88)配合。 凸轮表面(88)优选地具有陡峭的凸轮角度。 环(80)径向地压靠在管外壁上以形成密封和紧密的管夹。 环(80)还形成针对凸轮表面(88)的线接触型密封。 该环被设计成具有铰接作用并且在上拉期间塑性变形以嵌入到用于优异管夹的管道中,以及轴向相邻的挤压或收集区域,其将由嵌​​入作用产生的任何应力提升器与振动效应隔离。 装配部件,特别是环可以被硬化。 配件可以包括自我测量特征以指示足够的上拉以防止过度的上拉。 还提供了使用陡峭的凸轮表面(88)并且比不锈钢管端更硬的至少约3.3倍的单个套圈管配件。