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    Process for manufacturing a piston ring
    1.
    发明授权
    Process for manufacturing a piston ring 失效
    制造活塞环的方法

    公开(公告)号：US5618590A

    公开(公告)日：1997-04-08

    申请号：US464306

    申请日：1995-06-05

    申请人： Yoshio Naruse ,  Satomichi Miyazaki

    发明人： Yoshio Naruse ,  Satomichi Miyazaki

    IPC分类号： C23C14/06 ,  C23C14/32 ,  F02F5/00 ,  F16J9/26 ,  B05D3/06

    CPC分类号： C23C14/325 ,  C23C14/0688 ,  F16J9/26

    摘要： Using an arc ion plating apparatus, a metal not capable of forming a carbide or nitride, such as cobalt, nickel or molybdenum is set as a first target, a metal capable of forming a carbide or nitride, such as silicon, titanium, vanadium, chromium, iron, zirconium, niobium or tungsten is set as a second target and nitrogen, acetylene or methane is fed as a process gas to form a film on a piston ring body which is an article to be coated, thereby providing a piston ring comprising a hard film formed on at least its sliding outer face of the piston ring body, said hard film comprising a mixed structure formed of the metal not capable of forming a carbide or nitride and a carbide or nitride of the metal capable of forming a carbide or nitride. In this piston ring, the hard film has so good adhesion to the body material or film toughness that no cracking or film separation tend to occur even when the film is formed in a large thickness. The carbide or nitride in the hard film contributes the achievement of a superior wear resistance. Because of the fine structure of the hard film, the wear of the opposing material can be decreased, no film lubrication tends to be lost and the seizure resistance can be improved.

    摘要翻译： 使用电弧离子镀装置，将不能形成碳化物或氮化物的金属如钴，镍或钼设定为第一靶，可形成碳化物或氮化物的金属，例如硅，钛，钒， 铬，铁，锆，铌或钨被设定为第二目标，并且氮气，乙炔或甲烷作为工艺气体进料，以在作为待涂覆的制品的活塞环体上形成膜，从而提供活塞环， 在至少其活塞环体的滑动外表面上形成的硬膜，所述硬膜包括由不能形成碳化物或氮化物的金属和能够形成碳化物的金属的碳化物或氮化物形成的混合结构， 氮化物。 在该活塞环中，硬膜对于主体材料或膜的韧性具有如此良好的粘附性，即使当薄膜形成较大厚度时也不会发生裂纹或膜分离。 硬质膜中的碳化物或氮化物有助于实现优异的耐磨性。 由于硬膜的精细结构，可以降低相对材料的磨损，不会损失膜润滑，并且可以提高耐咬合性。

    Method of manufacturing a side rail of a combined oil ring
    2.
    发明授权
    Method of manufacturing a side rail of a combined oil ring 失效
    组合油环的侧轨的制造方法

    公开(公告)号：US5469616A

    公开(公告)日：1995-11-28

    申请号：US189723

    申请日：1994-01-31

    申请人： Satomichi Miyazaki ,  Akira Harayama ,  Nobuyuki Kazama ,  Masao Ishida

    发明人： Satomichi Miyazaki ,  Akira Harayama ,  Nobuyuki Kazama ,  Masao Ishida

    IPC分类号： F16J9/06 ,  F16J9/26 ,  B23P15/00

    CPC分类号： F16J9/26 ,  F16J9/066 ,  F16J9/069 ,  Y10T29/49274 ,  Y10T29/49281 ,  Y10T29/49284

    摘要： Each side rail of a combined oil ring, which includes a spacer-expander and two side rails, has an ion nitriding treatment layer on an outer peripheral surface of the rail. The inner peripheral surface of each rail may either be a bare surface or have either a soft surface treatment or a hard chrome plating. The upper and lower surfaces of the rail may either be a bare surface or have a soft surface treatment. The method comprises coiling a strip to form a coil, placing the coil on a jig so that only the outer peripheral surface is exposed to the ion nitriding and then cutting the coil to form the individual rails with a gap.

    摘要翻译： 组合油环的每个侧轨，其包括间隔件 - 膨胀器和两个侧轨，在轨道的外周表面上具有离子渗氮处理层。 每个导轨的内周面可以是裸露的表面，也可以是软表面处理或硬镀铬。 轨道的上表面和下表面可以是裸露表面或具有软表面处理。 该方法包括卷绕带材以形成线圈，将线圈放置在夹具上，使得只有外周表面暴露于离子氮化，然后切割线圈以形成具有间隙的单个轨道。