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用氧乙炔焰金属粉末喷涂工艺修复机械零件的磨损部分和改善零件的表面性能,具有设备简单、操作方便、效率高和基本上无公害等优点。我段自1978年开始,学习、运用这项新工艺,成功地应用于修复磨损过限的月牙板滑块,对提高架修机车质量、保证架修进度,都取得了良好的效果。1980年又试验用铜粉喷涂摇连杆铜套外圆,解决了摇连杆铜套外圆松动和压装不足的问题。蒸汽机车摇连杆铜套的材料是黄铜,其熔点为950℃。喷涂用铜粉为纯铜粉和412铜粉(磷青铜粉),熔点分别为1081℃和995℃。由于黄铜中含有锡、铅等成份,其
Oxygen acetylene flame metal powder coating technology to repair the wear parts of mechanical parts and improve the surface properties of parts, with the equipment is simple, easy to operate, high efficiency and the basic pollution-free advantages. Since 1978, I have been learning and using this new technology to successfully apply the crescent sliding block which is worn to the limit. All these have achieved good results in improving the quality of the repaired locomotive and the progress of the repairing. In 1980, we experimented with the copper powder coated swinging rod copper sleeve outer ring, which solved the problem that the swinging rod brass sleeve loosened and pressed out. Steam locomotive swing rod brass material is brass, the melting point of 950 ℃. Spray copper powder is pure copper powder and copper powder 412 (phosphor bronze powder), melting point respectively 1081 ℃ and 995 ℃. Because brass contains tin, lead and other ingredients, which