一、概述采用氧乙炔焰金属粉末喷涂和喷焊工艺,对机车车辆在运行中所造成的零部件磨损的修复工作,起了积极作用。采用上述工艺不仅修复时间短,涂层表面机械性能良好,同时具有设备简单,操作方便,应用灵活,噪音小等优点,因此受到广大用户的欢迎。这一工艺还将逐步应用在产品设计上,作为预防保护层来提高零部件易损表面的使用寿命。喷涂、喷焊工艺所采用的材料、系镍基、铁基、钴基、铜基等类型的合金粉末。上述合金粉末因含有多量的镍、钴以及不同含量的 I. Overview Oxygen acetylene flame metal powder spraying and spray welding process, locomotives and rolling stock parts caused by the wear and tear repair work, played an active role. The use of the above process not only repair time is short, good mechanical properties of the coating surface, and has the advantages of simple equipment, easy operation, flexible application, low noise, so by the majority of users. This process will also be gradually applied to product design, as a protective layer to improve the service life of fragile parts of the parts. Spray, spray welding process used by the material, Department of nickel, iron, cobalt, copper and other types of alloy powder. The alloy powder contains a large amount of nickel, cobalt and different contents