【摘要】 热喷涂是改善零件表面摩擦磨损性能的一个重要途径,可有效减缓零件磨损和失效.采用火焰喷涂在45钢基体材料表面制备尼龙涂层,通过磨损实验机进行喷涂涂层和45钢表面的磨损性能试验,并使用X衍射仪测试涂层表面结晶度,并测试涂层的结合强度,分析比较尼龙涂层与45钢基体的表面性能.结果表明,尼龙涂层可以保持尼龙所具有的良好性质,可以具有良好的自润滑性、和耐腐蚀性以及较高的结晶度、结合强度等,但在干滑动磨损方面,磨损性能低于45钢基体.更多还原

【Abstract】 Thermal spraying is an important way to improve friction and wear resistance of part surface and to delay wear and invalidation of parts.Nylon coatings were made in 45 steel by flame spraying.Wear resistance of nylon coatings and 45 steel were measured by friction and wear testing machine.Surface crystal degree were measured by X-ray diffraction.The combine strength of the coatings was also measured.The comparasion of surface properties between nylon coatings and 45 steel shows that nylon coatings can keep perfect quality of nylon,have good selflubrication,causticity resistance,higher crystaldegree and bonding strength.But wear resistance of nylon coatings is lower than that of 45 steel under the condition of dry gliding wear.更多还原