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    Method for Producing a Chromium Coating and a Coated Object
    81.
    发明申请
    Method for Producing a Chromium Coating and a Coated Object 审中-公开
    生产铬涂层和涂层物体的方法

    公开(公告)号：US20160333494A1

    公开(公告)日：2016-11-17

    申请号：US15111609

    申请日：2014-01-15

    Applicant: SAVROC LTD

    Inventor： Juha Miettinen ,  Jussi Räisä

    IPC: C25D5/48 ,  C23C16/455 ,  C25D5/50 ,  C25D5/14 ,  C25D3/56 ,  C23C14/06 ,  C25D3/06

    CPC classification number: C25D5/48 ,  C23C14/06 ,  C23C16/45525 ,  C23C28/021 ,  C23C28/027 ,  C23C28/324 ,  C23C28/34 ,  C25D3/06 ,  C25D3/562 ,  C25D5/14 ,  C25D5/50

    Abstract: To produce a trivalent chromium based coating on an object, a layer of nickel phosphorus alloy is deposited on the object, an intermediate layer of another metal or metal alloy or ceramic is deposited on the NiP layer, and a chromium layer is deposited from a trivalent chromium bath on the intermediate layer. The coated object is subjected to one or more heat treatments to harden the coating and to produce multiphase layers including at least one layer containing crystalline Ni and crystalline Ni3P and at least one layer containing crystalline Cr. The intermediate layer can consist of copper, molybdenum, a metal alloy or a non-metallic solid, such as an oxide, nitride or carbide of a metal.

    Abstract translation: 为了在物体上制备三价铬基涂层，在物体上沉积一层镍磷合金，在NiP层上沉积另一种金属或金属合金或陶瓷的中间层，并从三价沉积铬层 铬浴在中间层。 涂覆的物体经受一次或多次热处理以使涂层硬化并产生包括至少一层含有结晶Ni和结晶Ni3P的至少一层和至少一层含结晶Cr的多相层。 中间层可以由铜，钼，金属合金或非金属固体，例如金属的氧化物，氮化物或碳化物组成。

    Hard film, hard film formed body, and rolling bearing
    84.
    发明授权
    Hard film, hard film formed body, and rolling bearing 有权
    硬膜，硬膜成型体和滚动轴承

    公开(公告)号：US09347491B2

    公开(公告)日：2016-05-24

    申请号：US14346301

    申请日：2012-09-21

    Applicant: NTN CORPORATION

    Inventor： Hideyuki Tsutsui ,  Kouya Oohira ,  Masaki Nakanishi

    IPC: F16C33/58 ,  F16C33/62 ,  C23C14/02 ,  C23C14/06 ,  F16C33/64 ,  F16C33/32 ,  F16C33/34 ,  F16C33/56 ,  F16C33/66 ,  C23C14/34 ,  C23C28/00

    CPC classification number: F16C33/62 ,  C23C14/024 ,  C23C14/027 ,  C23C14/0605 ,  C23C14/3464 ,  C23C28/324 ,  C23C28/341 ,  C23C28/343 ,  C23C28/347 ,  C23C28/36 ,  F16C33/32 ,  F16C33/34 ,  F16C33/565 ,  F16C33/64 ,  F16C33/6603 ,  F16C2202/04 ,  F16C2204/44 ,  F16C2204/66 ,  F16C2206/04 ,  F16C2206/58 ,  F16C2206/82 ,  F16C2223/14 ,  F16C2223/30 ,  Y10T428/2495 ,  Y10T428/30

    Abstract: The present invention provides a hard film which has high wear resistance and excellent peeling resistance and can be prevented from peeling off a base material over a long period of time and a hard film formed body on which the hard film is formed. A hard film (8) has a structure composed of a first mixed layer (8a), consisting mainly of Cr and WC, which is formed directly on a raceway surface (2a) of an inner ring (2) (base material) of a rolling bearing, a second mixed layer (8b), consisting mainly of WC and DLC, which is formed on the first mixed layer (8a), and a surface layer (8c), consisting mainly of DLC, which is formed on the second mixed layer (8b). In the first mixed layer (8a), a content rate of the Cr becomes continuously or stepwise lower and that of the DLC becomes continuously or stepwise higher from a side of the base material toward a side of the second mixed layer (8b). In the second mixed layer (8b), a content rate of the WC becomes continuously or stepwise lower and that of the DLC becomes continuously or stepwise higher from a side of the first mixed layer (8a) toward a side of the surface layer (8c). A content of hydrogen in the second mixed layer (8b) is set to 10 to 45 atomic percent.

    Abstract translation: 本发明提供一种具有高耐磨性和优异的耐剥离性并且可以防止长时间剥离基材的硬膜和形成有硬膜的硬质成膜体。 硬膜（8）具有由主要由Cr和WC组成的第一混合层（8a）构成的结构，其直接形成在内圈（2）（基材）的滚道表面（2a）上 滚动轴承，形成在第一混合层（8a）上的主要由WC和DLC组成的第二混合层（8b）和主要由DLC组成的表面层（8c），其形成在第二混合层 层（8b）。 在第一混合层（8a）中，Cr的含量率连续或逐步降低，并且DLC的含量率从基材侧朝向第二混合层（8b）的一侧连续或逐步增加。 在第二混合层（8b）中，WC的含量率连续或逐步降低，并且DLC的含量率从第一混合层（8a）的侧面向表面层（8c）的一侧连续或逐步增加 ）。 第二混合层（8b）中的氢含量为10〜45原子％。

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