机车车辆以及其它机械的零部件的磨损,腐蚀和疲劳开裂等缺陷,均可采用粉末喷焊或喷涂的方法予以修复,以延长其使用寿命目的。氧乙炔焰金属粉末喷涂工艺是把金属粉末通过火焰加热至熔化或达到高塑性状态后,喷射到处理表面上,并在处理表面上沉积,从而形成牢固结合涂层的一种喷涂方法。这种火焰 Defects such as wear, corrosion and fatigue cracking of rolling stock and other mechanical parts and components may be repaired by powder spray coating or spraying to prolong the service life. Oxyacetylene flame metal powder spraying process is the metal powder through the flame heated to melt or reach a high plastic state, sprayed onto the treatment surface, and deposited on the treatment surface, thereby forming a strong combination of a spray coating method. This flame