Steel pipe screw joint
    66.
    发明专利
    Steel pipe screw joint 有权
    钢管螺丝接头

    公开(公告)号:JP2008069883A

    公开(公告)日:2008-03-27

    申请号:JP2006249643

    申请日:2006-09-14

    Abstract: PROBLEM TO BE SOLVED: To provide a steel pipe screw joint excellent in seizure resistance, rust-proofness and air tightness without using compound grease containing heavy metal which may give ill effects to environment or human bodies. SOLUTION: The steel pipe screw joint comprises a pin and a box each provided with a contact surface having a screw portion and a non-screwed metal contact portion. On the contact surface of at least one member of the pin and the box, there are formed a first layer of Hv100-500 consisting of a first metal or alloy, a second layer of Hv10-150 consisting of a second metal or alloy softer than that, and an uppermost solid lubrication overcoat layer (an overcoat layer formed by binding lubricating powder with organic or inorganic binder). COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种具有优异的耐咬合性,防锈性和气密性的钢管螺旋接头,而不使用含有可能对环境或人体产生不良影响的重金属的复合润滑脂。 解决方案:钢管螺纹接头包括销和箱体,每个销和箱都设有具有螺纹部分和非螺纹金属接触部分的接触表面。 在销和箱的至少一个构件的接触表面上形成由第一金属或合金组成的第一层Hv100-500,第二层Hv10-150由比第二金属或合金柔软的第二金属或合金组成 以及最上面的固体润滑外涂层(通过用有机或无机粘合剂粘结润滑粉末形成的外涂层)。 版权所有(C)2008,JPO&INPIT

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