一、概述等离子喷涂是五十年代后期才发展起来的一种新工艺技术。随着近代工业和尖端技术的发展,对材料提出愈来愈高的要求,如耐严重磨损、耐腐蚀、耐高温以及具有特殊的物理、化学和机械性能等。单一的结构材料往往很难满足这些要求,因而在工业生产中发展了各种涂层和复合材料或复合结构。对某些大型零部件,基体用一般金属材料制作,而在其表面喷涂一层符合要求的贵重金属,就可以节约大量的贵重金属,使产品的技术经济合理性大为提高。所以 First, an overview of plasma spraying is only developed in the late fifties a new technology. With the development of modern industry and cutting-edge technology, the materials have higher and higher requirements, such as severe abrasion resistance, corrosion resistance, high temperature resistance and special physical, chemical and mechanical properties. A single structural material is often difficult to meet these requirements, so in the industrial production has developed a variety of coatings and composites or composite structure. For some large parts, the base body made of general metal materials, and sprayed on the surface of a layer of the required precious metals, you can save a lot of precious metals, the product of the technical and economic rationality greatly improved. and so