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    • 5. 发明授权
    • Friction-reducing coating compositions and coated machine part
    • 减摩涂料组合物和涂布机部件
    • US4756841A
    • 1988-07-12
    • US856372
    • 1986-04-28
    • Ulrich BuranManfred FischerMartin MorsbachHans-Jochem Neuhauser
    • Ulrich BuranManfred FischerMartin MorsbachHans-Jochem Neuhauser
    • C23C4/06F02B77/02F16J9/26C10M103/04
    • C23C4/06F02B77/02F16J9/26F05C2201/0409F05C2201/0466
    • Friction-reducing coating compositions and coated machine parts having a wearing surface provided with coatings of same. In one embodiment, the coating composition includes from 10 to 25 weight % molybdenum metal; from 55 to 70 weight % nickel alloy; and from 5 to 25 weight % chromium carbide Cr.sub.3 C.sub.2. In a second embodiment, the coating composition includes from 25 to 45 weight % molybdenum metal; from 45 to 60 weight % nickel alloy; and from 5 to 25 weight % of a hard substance selected from chromium metal, chromium carbide Cr.sub.23 C.sub.6 and molybdenum carbide Mo.sub.2 C. Preferably the nickel alloys contain from 73 to 95 weight % nickel and have a melting point below that of nickel metal. Preferably the friction-reducing coating is applied to a wearing surface by plasma flame spraying. These coatings impart excellent wear resistance to the wearing surface, while lowering wear of counter-running faces.
    • 减摩擦涂料组合物和具有设置有其涂层的磨损表面的涂覆机器部件。 在一个实施方案中,涂料组合物包含10至25重量%的钼金属; 55至70重量%的镍合金; 和5至25重量%的碳化铬Cr 3 C 2。 在第二个实施方案中,涂料组合物包含25至45重量%的钼金属; 45〜60重量%的镍合金; 和5〜25重量%的选自铬金属,碳化铬Cr 23 C 6和碳化钼Mo 2 C的硬质物质。 优选地,镍合金含有73至95重量%的镍,其熔点低于镍金属的熔点。 优选地,通过等离子体火焰喷涂将摩擦减小涂层施加到磨损表面。 这些涂层赋予磨损表面优异的耐磨性,同时降低了反面磨损。
    • 9. 发明授权
    • Electrolytically deposited hard chronium coatings
    • 电解沉积硬的时代涂料
    • US4846940A
    • 1989-07-11
    • US148174
    • 1988-01-22
    • Hans-Jochem NeuhauserUlrich BuranRudolf Linde
    • Hans-Jochem NeuhauserUlrich BuranRudolf Linde
    • C25D3/04C25D5/48C25D15/00C25D15/02
    • C25D15/02
    • Solid particles of primarily hard substances, solid lubricants, ductile metals or their alloys and/or molten polymers are embedded in a network of cracks of hard chromium coatings to attain improved physical characteristics, primarily to increase wear resistance, sliding behavior, ductility and corrosion resistance.The chrome plating process takes place in a microcrack-forming chrome-plating electrolyte with solid particles dispersed therein and with one-time or repeated current reversal so that, if the workpiece is connected to the anode, the network of microcracks in the chromium coating is widened and solid particles are embedded within the cracks. Preferred uses are as coatings on the bearing surfaces of piston rings or cylinder bearing sleeves for internal-combustion engines.
    • 主要硬物质固体颗粒,固体润滑剂,延性金属或其合金和/或熔融聚合物嵌入硬铬涂层的裂纹网络中,以获得改善的物理特性,主要是为了提高耐磨性,滑动性能,延展性和耐腐蚀性 。 镀铬过程在具有分散在其中的固体颗粒的微裂纹形成的镀铬电解质中进行,并且具有一次或反复电流反转,使得如果工件连接到阳极,则铬涂层中的微裂纹网络是 加宽和固体颗粒嵌入裂缝内。 优选的用途是用于内燃机的活塞环或气缸轴承套的轴承表面上的涂层。