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一、引言热喷涂(焊)工艺是近年来广泛推广的一种新工艺,是提高工业没备和机械构件性能、延长使用寿命的一种较好的表面处理方法。在冶金、石油、化工、煤炭、铁路、电力、机械以及国防工业等部门获得广泛的使用,并取得了明显的经济效果。例如:某电视机厂电视机外壳模具价值为每套3万元,因磨损不能使用。采用热喷涂(焊)技术进行修复后,只用百余元,经继续使用一年未见磨损。再如某矿山公司使用一部27吨“贝拉斯”540A 型矿用汽车,因曲轴磨损而停车。进口一根新曲轴价
I. INTRODUCTION The thermal spraying (welding) process is a new technology widely promoted in recent years. It is a better surface treatment method to improve the performance of industrial equipment and mechanical components and prolong the service life. In the metallurgical, petroleum, chemical, coal, railway, power, machinery and defense industries and other departments have been widely used, and achieved significant economic results. For example: a TV factory TV shell mold value of 30,000 yuan each set, due to wear and tear can not be used. Using thermal spray (welding) technology for repair, only a hundred dollars, after continued use for one year without wear. Another example is a mining company using a 27 ton “Bellas” 540A mining vehicle, due to crankshaft wear and tear parking. Import a new crank price