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1. 发明申请

WO2015115601A9 PISTON RING AND MANUFACTURING METHOD THEREFOR 审中-公开
标题翻译：活塞环及其制造方法
公开(公告)号：WO2015115601A9
公开(公告)日：2016-06-02
申请号：PCT/JP2015052680
申请日：2015-01-30
申请人： NIPPON PISTON RING CO LTD
发明人： OZAKI TAKUYA , SUGIURA HIROYUKI
IPC分类号： F16J9/26 , F02F5/00
CPC分类号： C23C14/0605 , C23C14/025 , C23C14/32 , C23C28/322 , C23C28/343 , C23C28/347 , F16J9/26
摘要： The present invention addresses the problem of providing a piston ring having a hard carbon film exhibiting exceptional wear resistance and initial conformability, and a manufacturing method therefor. This problem is solved by a piston ring (10) having a hard carbon film (4) formed on at least an external peripheral sliding surface (11) of a piston ring base material (1), the hard carbon film (4) having a sp2 component ratio within a range of 40% to 80% inclusive as measured by a TEM-EELS spectrum which combines electron energy loss spectroscopy (EELS) with a transmission electron microscope (TEM), the hydrogen content being in a range of 0.1 at.% to 5 at.% inclusive, and the amount of macroparticles appearing on the surface being in a range of 0.1% to 10% inclusive by area ratio. The hard carbon film (4) is formed on a hard carbon foundation film (3) formed under low-speed film-forming conditions on the side of the piston ring base material (1), and the hard carbon foundation film (3) is formed with an arc current value 80% or less of the arc current value during the formation of the hard carbon film (4).
摘要翻译：本发明解决了提供具有优异耐磨性和初始柔顺性的硬质碳膜的活塞环及其制造方法的问题。该问题通过在活塞环基材（1）的至少外周滑动面（11）上形成有硬碳膜（4）的活塞环（10）来解决，硬碳膜（4）具有通过将电子能量损失光谱（EELS）与透射电子显微镜（TEM）组合的TEM-EELS光谱测量，含量在0.1at。的范围内，sp2分量比在40％至80％的范围内。％〜5原子％的范围，表面上出现的大粒子的面积比例在0.1％〜10％的范围内。硬质碳膜（4）形成在活塞环基材（1）侧的低速成膜条件下形成的硬碳基础膜（3）上，硬碳基础膜（3）为在硬碳膜（4）的形成期间，电弧电流值为电弧电流值的80％以下。

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