KY-HVO/AF多功能超音速火焰喷涂技术研究

Research of KY-HVO/AF Multi-Function High Velocity Oxygen Fuel Spray System

根据空气动力学、传热学和智能控制理论 ,采用射流雾化喷咀、高压燃烧室、电火花点火、拉伐尔加速喷咀、径向送粉和智能检测与控制技术 ,设计了多功能超音速火焰喷涂系统 .系统具有HVOF和HVAF的喷涂功能 ,可分别使用氧气与空气进行喷涂 ,也可使用氧气与空气的混合气体进行喷涂 ,焰流速度和温度连续可调 ,焰流速度达到 2 2 5 0m/s .系统点火可靠 ,冷却效率高 ,送粉效率高 ,控制智能化 ,可制备高质量金属陶瓷、金属及合金涂层 .制备的涂层质量高 ,结合强度超过 70MPa ,孔隙率低于 1% .喷涂的WC -

According to aerodynamics,thermodynamics and intellectualized control theory,multi function High Velocity Oxygen Fuel Spray system was successfully developed.The system adopted stream atomization,high pressure combustion chamber,converging/diverging nozzle,spark plug ignition,radial powder injection and intellectualized control technique.The system has the function of HVOF and HVAF.It can not only use air and oxygen to spray respectively,but also the mixture of air and oxygen,so the velocity and temperatur...