为了提高以变形铝合金(6061 ) 和压铸铝合金( YL102 ) 为基材的通信滤波器模块的防腐蚀能力,在其表面进行喷粉处理,研究了涂料类型、模块结构、处理工艺( 模块前处理、喷涂烘烤) 对成膜耐蚀性能的影响。结果表明:针对不同基材选择涂料,适当的圆角过渡,窄槽的深宽比和孔深 / 孔径比不大于 3 ,特殊的功能表面进行过渡处理,合理地安排喷粉处理工艺,均有利于提高喷粉层的防腐蚀能力。

In order to improve the corrosion resistance of the wrought aluminium alloy (6061 ) and die casting aluminium alloy ( YL102 ) for the base of communication filter module, powder was sprayed on its surface. The effect of coating type, module structure, treatment process ( module pre-processing, baking) on the film-forming corrosion resistance was studied. The results show that: the reasonable choice of different coating, proper rounding, narrow groove depth to width ratio and hole depth and the aperture ratio not greater than 3 , special function of surface transition processing, reasonable arrangements for powder processing technology can improve corrosion resistance of powder sprayed film-forming.