THREADED JOINT FOR PIPES
    261.
    发明申请
    THREADED JOINT FOR PIPES 审中-公开
    螺纹连接管

    公开(公告)号:WO2013108931A1

    公开(公告)日:2013-07-25

    申请号:PCT/JP2013/051363

    申请日:2013-01-17

    Abstract: A threaded joint for pipes comprises a pin 1 and a box 2 each having a contact surface including a threaded portion 3,7 and an unthreaded metal contact portion. The unthreaded metal contact portion includes a sealing surface 5, 8 and a shoulder surface 9, 10, 11, 12. The shoulder surface of the pin is located on the end surface of the pin. A non-contacting region 13 in which the pin and the box do not contact each other is present between the sealing surfaces and the shoulder surfaces of the pin and the box. The threaded joint has one or more grooves formed in the shoulder surface of at least one of the pin and the box and extending to the non-contacting region and to the interior of the threaded joint. At least the contact surface of at least one of the pin and the box has a solid lubricating coating exhibiting plastic or viscoplastic rheological behavior formed thereon. The total volume V (mm 3 ) of the grooves and the coating weight W (g) of the solid lubricating coating satisfy the equation V/W ≥ 24 (mm 3 /g).

    Abstract translation: 用于管道的螺纹接头包括销1和盒2,每个具有包括螺纹部分3,7和无螺纹金属接触部分的接触表面。 无螺纹金属接触部分包括密封表面5,8和肩部表面9,10,11,12。销的肩部表面位于销的端表面上。 销和盒彼此不接触的非接触区域13存在于销和盒的密封表面和肩部表面之间。 螺纹接头具有形成在销和箱中的至少一个的肩部表面中的一个或多个槽,并且延伸到非接触区域和螺纹接头的内部。 销和箱中的至少一个的至少接触表面具有表现出在其上形成的塑性或粘塑性流变行为的固体润滑涂层。 槽的总体积V(mm 3)和固体润滑涂层的涂布重量W(g)满足方程式V / W> = 24(mm 3 / g)。

    COMPOSITE MATERIAL FOR ANTI-FRICTION WORKPIECES
    270.
    发明申请
    COMPOSITE MATERIAL FOR ANTI-FRICTION WORKPIECES 审中-公开
    用于抗摩擦工作的复合材料

    公开(公告)号:WO01083652A1

    公开(公告)日:2001-11-08

    申请号:PCT/US2001/009588

    申请日:2001-03-26

    Abstract: A material having improved hardness characteristics and bearing, lower friction coefficient and increased service life in clusters of sliding friction contains powder of copper, iron, phosphorus, graphite, dust of disulphide of molybdenum and steel substrate made out of low carbohydrate steel. The material has a bimetal structure with granules inserted in a matrix. The material of the invention is especially useful in the machine-building industry, particularly for the production of blocks for units of sliding friction in machines, mechanisms and equipment.

    Abstract translation: 具有改善的硬度特性和轴承,降低摩擦系数和延长滑动摩擦力的使用寿命的材料包含由低碳水化合物钢制成的钼,铁,磷,石墨,二硫化钼粉末和钢基材。 该材料具有双金属结构,其中颗粒插入基质中。 本发明的材料在机械制造工业中特别有用,特别是用于生产机器,机构和设备中滑动摩擦单元的块体。

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