Hard coating film excellent in lubrication characteristics, process for formation thereof, and tool for the plastic working of metal
    180.
    发明授权
    Hard coating film excellent in lubrication characteristics, process for formation thereof, and tool for the plastic working of metal 有权
    润滑特性优良的硬质涂膜,其形成工艺,金属塑料加工用工具

    公开(公告)号:US08298999B2

    公开(公告)日:2012-10-30

    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。

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