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    • 10. 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。