等离子喷焊是六十年代出现的新技术,目前,已在阀门、发动机、模具、石油化工机械、工程机械、矿山机械、农业机械等部门不同程度地获得了应用,并取得了明显的技术经济效益。一、粉末等离子喷焊的基本原理等离子喷焊是利用等离子弧作为高温热源,采用粉末状合金作为填充金属的一种新的熔焊工艺。喷焊是采用氩气作电离气体,通过调节各种工艺参数的规 Plasma jet welding is a new technology emerging in the 1960s. At present, it has been used to varying degrees in valves, engines, molds, petrochemical machinery, construction machinery, mining machinery, agricultural machinery and other departments and has achieved obvious technical and economic benefit. First, the basic principle of powder plasma spray Plasma spray welding is the use of plasma arc as a high temperature heat source, the use of powdered alloy as a filler metal welding process. Spray welding is the use of argon as ionizing gas, through the regulation of a variety of process parameters