HARD COATING FILM EXCELLENT IN LUBRICATION CHARACTERISTICS, PROCESS FOR FORMATION THEREOF, AND TOOL FOR THE PLASTIC WORKING OF METAL
    341.
    发明申请
    HARD COATING FILM EXCELLENT IN LUBRICATION CHARACTERISTICS, PROCESS FOR FORMATION THEREOF, AND TOOL FOR THE PLASTIC WORKING OF METAL 有权
    润滑特性优良的硬涂膜,其形成工艺及金属塑料加工工具

    公开(公告)号:US20100210489A1

    公开(公告)日:2010-08-19

    申请号:US12439921

    申请日:2007-12-21

    Abstract: The invention aims at providing a hard coating film excellent in lubrication characteristics; a process for the formation thereof; and tools for the plastic working of metal, and provides a hard coating film covering the surface of a substrate to come into contact with other member, wherein carbon atoms having carbon-carbon bonds are present in an amount of 10 at % or above. It is preferable that the hard coating film contain titanium carbide, while it is preferable to form a titanium nitride coating layer between the surface of the substrate and the hard coating film. The invention also provides a process for the formation of a hard coating film on the surface of a substrate by arc ion plating which comprises introducing a hydrocarbon gas during the arc ion plating with a metal target and which makes it possible to form on the surface of a substrate a coating film where carbon atoms having carbon-carbon bonds are present in an amount of 10 at % or above. It is preferable that prior to the introduction of a hydrocarbon gas, nitrogen gas be introduced to form a metal nitride layer on the surface of the substrate. Further, the invention provides tools for the plastic working of metal whose working surfaces are covered with the hard coating film.

    Abstract translation: 本发明的目的是提供一种润滑特性优异的硬涂膜; 其形成过程; 以及用于金属塑性加工的工具,并且提供覆盖基材表面以与其它构件接触的硬涂层膜,其中具有碳原子数为10原子%或以上的碳原子。 优选硬质涂膜含有碳化钛,而优选在基材表面和硬涂层之间形成氮化钛涂层。 本发明还提供了一种通过电弧离子电镀在基板表面上形成硬涂膜的方法,该方法包括在电弧离子电镀期间用金属靶导入烃气体,并且可以在 底物为碳原子数为10原子%以上的碳原子的涂膜。 优选在引入烃气体之前,引入氮气以在基板的表面上形成金属氮化物层。 此外,本发明提供了金属的塑性加工工具,其工作表面被硬涂层覆盖。

    Threaded joint for steel pipes and process for the surface treatment thereof
    349.
    发明授权
    Threaded joint for steel pipes and process for the surface treatment thereof 有权
    钢管螺纹接头及其表面处理工艺

    公开(公告)号:US06827996B2

    公开(公告)日:2004-12-07

    申请号:US10361556

    申请日:2003-02-11

    Applicant: Kunio Goto

    Inventor: Kunio Goto

    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 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。 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,并且即使在 高温油井的环境。 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。

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