等离子喷涂设备及工艺是采用等离子弧发生器(喷枪)将通入喷嘴内的气体(常用氩气、氮气和氢气等)加热和电离,形成高温高速等离子射流,熔化和雾化金属或非金属喷粉,并使其以高速喷射到经预处理的工件表面上形成涂层的方法。超声速火焰喷涂是应用火箭发动机的原理获得温度较低(3400K)、但速度却很高的喷涂燃流。其突出的贡献是大幅度提高了涂层的结合强度、密度、硬度,同时降低了涂层中的氧化物含量,使涂层较等离子喷涂更加纯净。此外,超声 Plasma spraying equipment and technology is the use of plasma arc generator (spray gun) will be introduced into the nozzle of the gas (commonly used argon, nitrogen and hydrogen, etc.) heating and ionization to form high-temperature high-speed plasma jet, melting and atomizing metal or non-metallic spray Powder, and make it spray at high speed to the surface of the pretreatment method of forming a coating. Supersonic flame spraying is the application of rocket engine principle to obtain a lower temperature (3400K), but the speed is very high spray fuel flow. Its outstanding contribution is to significantly improve the bonding strength, density and hardness of the coating while reducing the oxide content of the coating, making the coating more pure than plasma spraying. In addition, ultrasound