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采用光学显微镜和显微硬度计等仪器,研究气体爆燃时,铁铝涂层的表面形貌、显微硬度的变化.当单位时间内提供粉末能量减少时,喷涂涂层的微观组织是黑白相间的片层组织.增加单位时间内提供粉末的能量.可得到均匀的组织涂层.当氧气和乙炔流量比为1时,涂层中各点的显微硬度近似相等,显微硬度值为552HV0.2.选用新型耐锌腐蚀涂层材料———铁铝合金材料,在工件表面喷涂铁铝合金保护层,探讨铁铝合金材料涂层质量与喷涂工艺的关系,从而获得最佳的耐锌腐蚀涂层.
The optical microscopy and microhardness tester were used to study the surface morphology and microhardness of the Fe-Al coating during gas deflagration.The microstructure of the sprayed coating was black and white when the powder energy was reduced per unit time Of the film organization to increase energy per unit of time to provide a powder coating can be uniform tissue coating.When oxygen and acetylene flow ratio of 1, the coating microhardness at each point is approximately equal, the microhardness value of 552HV0 .2 choose a new type of zinc-resistant coating material --- iron-aluminum alloy material, the surface of the workpiece sprayed with iron-aluminum alloy protective layer to explore the quality of iron and aluminum alloy coating material and spray process, so as to obtain the best zinc-resistant Corrosion coating.