热喷涂技术是近年发展的材料表面强化和保护新工艺,是国家“六、五”期间重点推广项目,取得若干明显的经济效益。但其热源—火焰、等离子体功率密度低,致使涂层内含有大量的气孔、夹杂、裂纹等低倍缺陷,粉末粒子熔化不良,结合力差,涂层与基体不能冶金结合,使涂层的性能不能充分发挥,限制了它的许多重要应用。 Thermal spraying technology is the recent development of material surface strengthening and protection of new technology, is the national “six or five” key to promote the project during the period, made a number of significant economic benefits. However, its heat source - flame and plasma power density is low, resulting in a large number of pores, inclusions, cracks and other low defects in the coating, poor powder particles melting, poor bonding, the coating and the substrate can not be metallurgical bonding, the coating Performance can not give full play, limiting its many important applications.