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一、概述等离子喷涂技术是五十年代末期开始发展起来的。它和其它喷涂方法(氧乙炔火焰喷涂、金属电弧喷涂)相比,可以熔化一切难熔金属和非金属粉末,使普通材质的零件表面获得一层具有耐磨、耐腐蚀、耐高温等各种不同性能的涂层。它可以达到提高机器设备零部件的表面质量、延长使用寿命、修复已损缺的旧件等目的。它还具有喷涂效率高、涂层致密、与基体的粘结强度高、零件热变形影响极小等优点。因此,等离子喷涂
First, an overview Plasma spraying technology was developed in the late fifties. Compared with other spraying methods (oxyacetylene flame spraying, metal arc spraying), it can melt all refractory metal and nonmetallic powder, so that the surface of common material parts get a layer of wear-resistant, corrosion-resistant, high temperature and other Different performance of the coating. It can achieve the purpose of improving the surface quality of the parts and components of machinery and equipment, prolonging the service life and repairing the damaged old parts. It also has the advantages of high spraying efficiency, dense coating, high bond strength with the substrate, minimal thermal deformation of the parts and so on. Therefore, plasma spraying