A process for obtaining a protective coating for surfaces subjected to mechanical and thermal wear, and coating obtained by such process
    146.
    发明公开
    A process for obtaining a protective coating for surfaces subjected to mechanical and thermal wear, and coating obtained by such process 失效
    一种生产用于表面,其受到机械和热磨损保护涂层的方法。

    公开(公告)号:EP0147484A1

    公开(公告)日:1985-07-10

    申请号:EP83113249.3

    申请日:1983-12-30

    Inventor: Filomeni, Paolo

    CPC classification number: C25D5/14 F02B77/02 F05C2201/0406

    Abstract: @ The process provides for coating surfaces (2) of elements (1) of heat engines subjected to wear by sliding and oxidation with a wear layer (3), and consists of a first electro-deposition phase performed in an aqueous electrolyte with a low hydrogen discharge, of a first layer (4) of hard chrome having a thickness lying between 20 and 40 µm and a hardness lying between 400 and 600 HV; and a second electro-deposition phase in an aqueous electrolyte based on a mixture of acids, of a second layer (5) of hard chrome over the first layer (4), having a hardness of at least 1000 HV and a maximum thickness of about 1.2 mm.

    Abstract translation: 该过程通过滑动和氧化具有耐磨层(3),和第一电沉积相在wässrige电解质具有低的氢进行。在的besteht提供用于经受磨损热机的元件(1)的涂层表面(2) 放电的第一层,(4),其厚度位于40和20之间微米和躺在400和600 HV之间的硬度硬铬的; 并且在wässrige电解质的第二电沉积相基于硬铬的在所述第一层(4)的第二层(5)的酸的混合物,具有至少1000 HV的硬度和大约的最大厚度 1.2mm左右。

    用于内燃机的两件式活塞
    147.
    实用新型

    公开(公告)号:CN202039963U

    公开(公告)日:2011-11-16

    申请号:CN200790000112.0

    申请日:2007-10-23

    CPC classification number: F02F3/22 F02F3/0023 F05C2201/0406 F05C2253/12

    Abstract: 本实用新型涉及一种用于内燃机的两件式活塞,所述活塞由一个上部件(2)和一个为此而拧紧的下部件(3)构成,其中,上部件(2)和下部件(3)部分地通过由上环形肋(10)的下侧面和下环形肋(11)的上侧面所限定的内支承面(25、26)并且部分地通过由环形壁(9)的下侧面和轮缘(27)的上侧面所限定的外支承面(28、29)相互构成接触。为了避免振动摩擦损耗、摩擦焊接以及压力下的材料焊接,至少一个支承面(25、26、27、28)覆盖有镀铬层(30),所述镀铬层具有一个结构化且带有多个突起和凹陷的表面。

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