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    Threaded joint for steel pipes and process for the surface treatment thereof
    53.
    发明申请
    Threaded joint for steel pipes and process for the surface treatment thereof 审中-公开
    钢管螺纹接头及其表面处理工艺

    公开(公告)号：US20040195826A1

    公开(公告)日：2004-10-07

    申请号：US10829292

    申请日：2004-04-22

    Inventor： Kunio Goto

    IPC: F16L055/00

    CPC classification number: E21B17/042 ,  C10M111/04 ,  C10M177/00 ,  C10M2201/0413 ,  C10M2201/0613 ,  C10M2201/0623 ,  C10M2201/0653 ,  C10M2201/0663 ,  C10M2201/0803 ,  C10M2201/084 ,  C10M2209/1003 ,  C10M2209/1013 ,  C10M2217/0443 ,  C10N2230/06 ,  C10N2240/22 ,  C10N2250/08 ,  C10N2250/121 ,  C10N2270/00 ,  C10N2280/00 ,  C23C24/08 ,  F16L15/00 ,  F16L15/001 ,  F16L15/004 ,  F16L58/182 ,  Y10T428/139 ,  Y10T428/1393 ,  Y10T428/31529 ,  Y10T428/31678

    Abstract: This invention relates to a threaded joint for steel pipes which comprises a pin and a box each having a contact surface including a threaded portion and an unthreaded metal contact portion and which can be prevented from galling during repeated fastening and loosening without application of a compound grease. A solid lubricant coating which comprises a lubricating powder such as molybdenum disulfide and a resin binder is formed on the contact surface of at least one of the pin and the box. The coating is formed by applying a coating fluid and drying the applied coating by first stage heating in the temperature range of from 70null C. to 150null C. and second stage heating in the range of from higher than 150null C. to 380null C. The resulting solid lubricant coating has a hardness of 70-140 on the Rockwell M scale and an adhesive strength of at least 500 N/m as determined by the SAICAS (Surface And Interfacial Cutting Analysis System) method, and it exhibits excellent galling resistance even in the environment of high-temperature oil wells. Inclusion of ultraviolet screening fine particles such as titanium oxide fine particles in the solid lubricant coating increases the rust preventing properties of the threaded joint.

    Abstract translation: 本发明涉及一种用于钢管的螺纹接头，其包括销和箱体，每个销和箱都具有包括螺纹部分和无螺纹金属接触部分的接触表面，并且可以防止在反复紧固和松动期间不产生磨损而不施加复合润滑脂 。 在销和盒中的至少一个的接触表面上形成包含润滑粉末如二硫化钼和树脂粘合剂的固体润滑剂涂层。 通过施加涂布液并通过在70℃至150℃的温度范围内的第一阶段加热来干燥所涂覆的涂层并且在高于150℃至380℃的范围内进行第二阶段加热来形成涂层 ℃。所得固体润滑剂涂层在洛氏硬度计上具有70-140的硬度，并且通过SAICAS（表面和界面切割分析系统）方法确定的至少500N / m的粘合强度，并且显示出优异的 即使在高温油井的环境中也具有耐磨性。 在固体润滑剂涂层中包含紫外线屏蔽细颗粒如氧化钛微粒增加螺纹接头的防锈性能。

    Thermoset polymer/solid lubricant coating system
    59.
    发明授权
    Thermoset polymer/solid lubricant coating system 失效
    热固性聚合物/固体润滑剂涂料体系

    公开(公告)号：US5363821A

    公开(公告)日：1994-11-15

    申请号：US88686

    申请日：1993-07-06

    Applicant: V. Durga N. Rao ,  Daniel M. Kabat ,  Brian M. Lizotte

    Inventor： V. Durga N. Rao ,  Daniel M. Kabat ,  Brian M. Lizotte

    IPC: F02F1/00 ,  C10M111/04 ,  C10M169/04 ,  C23C4/04 ,  F02B1/04 ,  F02B51/02 ,  F02B77/02 ,  F16J10/00 ,  F16N15/00 ,  F22B5/00

    CPC classification number: F16N15/00 ,  C10M111/04 ,  C23C4/04 ,  F02B77/02 ,  C10M2201/00 ,  C10M2201/003 ,  C10M2201/0403 ,  C10M2201/041 ,  C10M2201/042 ,  C10M2201/0433 ,  C10M2201/053 ,  C10M2201/0603 ,  C10M2201/061 ,  C10M2201/0613 ,  C10M2201/0623 ,  C10M2201/0653 ,  C10M2201/066 ,  C10M2201/0663 ,  C10M2201/0803 ,  C10M2201/0853 ,  C10M2201/0863 ,  C10M2201/0873 ,  C10M2201/1006 ,  C10M2201/1023 ,  C10M2201/1033 ,  C10M2201/1053 ,  C10M2201/123 ,  C10M2201/16 ,  C10M2201/18 ,  C10M2209/00 ,  C10M2209/02 ,  C10M2209/10 ,  C10M2209/1003 ,  C10M2209/101 ,  C10N2240/02 ,  F02B1/04 ,  F02B51/02 ,  Y02T10/126 ,  Y10T29/49272

    Abstract: A solid film lubricant system for protecting metal wear interfaces subject to high temperatures and wet lubrications, comprising an oil-attracting solid lubricant mixture with at least two elements selected from the group of graphite, MoS.sub.2 and BN; a support (i.e., hard lands or hard sublayer) for the mixture to loads of at least 10 psi at temperatures of 600.degree.-800.degree. F. while being thermally stable; a thermally stable thermoset polymer matrix adhering the mixture to the support or the wear surface, the polymer having inherent hydrocarbon chemical attraction to form a tenacious oil film of the lubricating oil on the wearing surface. A method of making anti-friction coated surfaces comprising providing a light metal based cylinder surface (i.e., metal base or alloys of aluminum, titanium, or magnesium); exposing nonoxidized metal of the surface; applying a high elastic modulus load-supporting metal layer onto at least portions of the light metal cylinder surface; and simultaneously distributing a solvent-based solid film lubricant mixture and thermoset polymer onto at least portions of the layer at about room temperature to form a coating of desired thickness. An engine block with one or more anti-friction coated cylinder bore surfaces, comprising a hard, load-supporting face on the bore surface; and a coating on the face comprised of an oil-attracting solid lubricant mixture and a thermoset polymer that supports loads of at least 10 psi at temperatures of 600.degree.-800.degree. F. and is stable at such temperatures.

    Abstract translation: 一种用于保护经受高温和湿润润滑的金属磨损界面的固体膜润滑剂系统，包括具有选自石墨MoS 2和BN中的至少两种元素的吸油固体润滑剂混合物; 用于混合物的载体（即硬土或硬亚层）在600-800°F的温度下的载荷至少为10psi，同时热稳定; 将该混合物粘附到载体或耐磨表面上的热稳定的热固性聚合物基体，该聚合物具有固有的碳氢化合物化学吸引力，以在磨损表面上形成润滑油的坚固的油膜。 一种制造抗摩擦涂层表面的方法，包括提供基于轻金属的圆柱体表面（即，金属基体或铝，钛或镁的合金）; 暴露表面的非氧化金属; 在轻金属圆筒表面的至少一部分上施加高弹性模量负载金属层; 并且在大约室温下同时将溶剂基固体膜润滑剂混合物和热固性聚合物分布到该层的至少部分上以形成所需厚度的涂层。 具有一个或多个抗摩擦涂覆的气缸孔表面的发动机缸体，包括孔表面上的硬的负载支撑面; 以及由吸油固体润滑剂混合物和热固性聚合物组成的涂层，其在600-800°F的温度下支持至少10psi的载荷，并且在这样的温度下是稳定的。

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