Ferrule with relief to reduce galling
    81.
    发明授权
    Ferrule with relief to reduce galling 失效
    具有缓解的套圈以减少磨损

    公开(公告)号:US07699358B2

    公开(公告)日:2010-04-20

    申请号:US12115096

    申请日:2008-05-05

    IPC分类号: F16L19/10 F16L19/06

    摘要: High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so as to redirect the reaction forces acting between the front ferrule and the drive nut. The rear ferrule has a cylindrical interior wall that closely surrounds the tube end and is provided on the interior cylindrical wall with a circumferentially continuous radial recess that is located between the nose and rear wall of the rear ferrule. The rear ferrule also has a radially external wall that is substantially conical and additionally shaped to extend radially outward toward the enlarged diameter portion or flange of the rear ferrule. The rear ferrule further includes a contoured face on the rear driven surface of the ferrule that engages the drive surface of the drive nut.

    摘要翻译: 通过对后套圈的适当改进,两个套圈管接头组件通常消除或大大降低了高局部负载,磨损和高扭矩力,以便重定向作用在前套圈和驱动螺母之间的反作用力。 后套圈具有紧密围绕管端的圆柱形内壁,并且在内圆柱形壁上设置有周向连续的径向凹部,其位于后套圈的前后壁之间。 后套圈还具有径向外壁,其基本上为圆锥形并且另外成形为朝向后套圈的扩大直径部分或凸缘径向向外延伸。 后套圈还包括在套圈的后驱动表面上的与驱动螺母的驱动表面接合的轮廓面。

    Tube fitting
    82.
    发明授权
    Tube fitting 失效
    管接头

    公开(公告)号:US07677602B2

    公开(公告)日:2010-03-16

    申请号:US11928136

    申请日:2007-10-30

    IPC分类号: F16L35/00

    CPC分类号: F16L19/14 F16L19/10

    摘要: A tube fitting for a tube end has a first coupling member and a second coupling member joined with the first coupling member. A tube gripping device is disposed between the first coupling member and the second coupling member such that assembly of the first coupling member with said second coupling member to a pulled-up condition causes the tube gripping device to be plastically deformed and swaged into the tube to grip and seal the tube. The first coupling member engages an internal surface of the second coupling member to provide an indication of completed pull-up.

    摘要翻译: 用于管端的管配件具有第一联接构件和与第一联接构件连接的第二联接构件。 管夹持装置设置在第一联接构件和第二联接构件之间,使得第一联接构件与所述第二联接构件的组合到拉起状态导致管夹持装置塑性变形并模锻到管中 抓住并密封管子。 第一联接构件接合第二联接构件的内表面以提供完成的上拉的指示。

    Fitting for tube and pipe with cartridge
    83.
    发明授权
    Fitting for tube and pipe with cartridge 有权
    管和管用配件

    公开(公告)号:US07497483B2

    公开(公告)日:2009-03-03

    申请号:US11255499

    申请日:2005-10-20

    IPC分类号: F16L13/14

    摘要: A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and a second fitting component that can be joined to the first fitting component to cause the conduit gripping device to grip the conduit and seal when assembled. In one aspect of the invention, the first fitting component is constructed from a material that is softer than the material used to construct the second fitting component. An additional aspect of the invention include a retaining portion on the second fitting component that constrains the tube gripping device against pressure. The retaining portion can also be configured to retain the tube gripping device to the second fitting component prior to installation and in a finger-tight condition. A further aspect of the invention includes a first fitting component in which an exterior portion of the component is work hardened radially outward from the tube gripping device. The fitting may optionally be provided with a structure to effect the pull-up by torque functionality.

    摘要翻译: 一种用于能够起到高压力的管子或管子的配件,其具有适于容纳导管端部的第一配件部件; 诸如套圈或套管的导管夹持装置和第二装配部件,其可以连接到第一装配部件,以使得导管夹持装置在组装时夹紧导管和密封。 在本发明的一个方面,第一装配部件由比用于构造第二装配部件的材料软的材料构成。 本发明的另一方面包括在第二装配部件上的保持部分,其限制管夹持装置抵抗压力。 保持部分还可以构造成在安装之前并且在手指状态下将管夹持装置保持在第二配件部件上。 本发明的另一方面包括第一装配部件,其中部件的外部部分从管夹持装置径向向外加工硬化。 配件可以可选地设置有通过扭矩功能实现上拉的结构。

    FITTING FOR METAL PIPE AND TUBING
    84.
    发明申请
    FITTING FOR METAL PIPE AND TUBING 有权
    适用于金属管和管件

    公开(公告)号:US20090033093A1

    公开(公告)日:2009-02-05

    申请号:US12197338

    申请日:2008-08-25

    申请人: Peter C. Williams

    发明人: Peter C. Williams

    IPC分类号: F16L19/08

    CPC分类号: F16L19/14 F16L19/10

    摘要: 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 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.

    摘要翻译: 仅使用两个部件的管接头,即接头体和接头螺母。 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环,当配件组装时,其与主体上的凸轮表面配合。 凸轮表面优选具有陡峭的凸轮角度。 环围绕管外壁径向压缩以形成密封和紧密的管夹。 该环也形成针对凸轮表面的线接触型密封。 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管中以获得优异的管夹,以及轴向相邻的挤压或夹头区域,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,可以是表面硬化的。 配件可以包括自测量特征以指示足够的上拉和防止过度上拉。 还提供了使用陡峭的凸轮表面的单个套圈管配件,其硬度比至少在维氏尺度上不锈钢管端的硬度的约3.3倍。

    Fitting with separable gripping device for pipe and tube
    86.
    发明授权
    Fitting with separable gripping device for pipe and tube 失效
    配有管和可分离的夹紧装置

    公开(公告)号:US07066496B2

    公开(公告)日:2006-06-27

    申请号:US10642094

    申请日:2003-08-15

    IPC分类号: F16L33/00

    CPC分类号: F16L19/14

    摘要: A tube fitting for a tube end has a female threaded member that cooperates with a male threaded member. The female member includes a tube gripping device in the form of a gripping ring or ferrule that is attached to the female member by a frangible web. Upon a partial pull-up the ferrule engages a camming surface on the male threaded member and breaks off or separates from the female threaded member to become a separate piece so that the fitting then functions as a single ferrule tube fitting. Additional features include a steep camming angle on the camming surface to cause the ferrule to grip the tube end with a bite-type action and to form a primary seal between the camming surface and a front end of the separated ferrule. The ferrule front end, and optionally the entire female threaded member including the initially integral tube gripping device, are hardened to have a hardness ratio that is at least about 3.3 times the hardness of the material of the tube end on the Vickers scale.

    摘要翻译: 用于管端的管配件具有与阳螺纹构件配合的内螺纹构件。 阴构件包括通过易碎腹板附接到阴构件的夹紧环或套圈形式的管夹持装置。 在部分上拉时,套圈接合阳螺纹构件上的凸轮表面并且从内螺纹构件断开或分离成为单独的件,使得配件然后用作单个套圈管配件。 附加特征包括在凸轮表面上的陡峭的凸轮角度,以使套圈以咬入动作夹紧管端,并且在凸轮表面和分离的套圈的前端之间形成主密封。 套圈前端以及可选的包括初始整体管夹持装置的整个内螺纹构件被硬化以具有在维氏尺度上的管端材料的硬度的至少约3.3倍的硬度比。

    Modified low temperature case hardening processes
    87.
    发明授权
    Modified low temperature case hardening processes 有权
    改性低温表面硬化工艺

    公开(公告)号:US06547888B1

    公开(公告)日:2003-04-15

    申请号:US09494093

    申请日:2000-01-28

    IPC分类号: C23C820

    CPC分类号: C23C8/22

    摘要: An iron-containing workpiece is case hardened by low temperature carburization during which one or more process steps—including adjusting the carburization temperature, adjusting the concentration of carburization specie in the carburization gas and reactivating the surfaces to be carburized—is carried out to enhance the overall rate and uniformity of carburization with minimized soot generation, whereby carburization can be completed faster than possible in the past.

    摘要翻译: 含铁工件通过低温渗碳进行表面硬化,其中进行一个或多个工艺步骤,包括调节渗碳温度,调节渗碳气体中的渗碳物质的浓度并重新激活被渗碳的表面,以增强 碳酸化的总体速率和均匀性,最小化烟灰产生,从而可以比过去更快地完成渗碳。

    Selective case hardening processes at low temperature
    88.
    发明授权
    Selective case hardening processes at low temperature 有权
    低温选择性硬化工艺

    公开(公告)号:US06165597A

    公开(公告)日:2000-12-26

    申请号:US133158

    申请日:1998-08-12

    摘要: A selectively case hardened steel article by low temperature carburization includes a body made of a chromium bearing nickel or ferrous based alloy (for example, stainless steel), a first portion of the body having a first hardness characteristic, and a second portion of the body having a second hardness characteristic; the second portion being less than the entire body and substantially free of carbides. One method for selective case hardening by low temperature carburization includes the steps of applying a carbon blocking mask over surface areas of the article that are not going to be carburized; activating those surface areas that are to be carburized; diffusing carbon into the activated surface areas at a temperature below which carbides readily form; and removing the carbon blocking mask.

    摘要翻译: 通过低温渗碳的选择性表面硬化钢制品包括由铬轴承镍或亚铁基合金(例如不锈钢)制成的主体,主体的第一部分具有第一硬度特性,并且主体的第二部分 具有第二硬度特性; 第二部分小于整个本体并且基本上不含碳化物。 通过低温渗碳选择性表面硬化的一种方法包括以下步骤:将碳阻挡面罩涂覆在不会被渗碳的制品的表面区域上; 激活要渗碳的表面区域; 在碳化物容易形成的温度下将碳扩散到活化的表面区域; 并除去碳阻挡掩模。