金属表面配合物保护膜述评(Ⅱ)——铜及铜合金的防变色配合物膜

A Review on the Protective Films Composed of Surface Metallic Complexes (Ⅱ )——Surface Metallic Complexe Film For Anti-Color-Fading of Copper and Copper Alloys

铜和铜合金具有优良的导电性、导热性和可焊性,是目前应用最广的金属材料之一。但它在潮湿工业大气中很容易发生腐蚀变色,变色膜会降低铜的各种性能,严重影响它们的使用效果和寿命。评述了铜与铜合金的腐蚀变色,无铬防铜变色工艺以及防铜变色配合物膜的组成与结构。

Copper and copper alloys are one of the most widely used metals due to their excellent electric conductivity, heat conductivity, and welding ability. In the industrial atmosphere with high moisture, they are easily corroded and fade in colour, which is unfavorable to their appearance and performances and service life. The poducts and mechanism of colour fading of copper and copper alloys, the anti - fading process including the effects of technological parameters on the colour protection and the composition of the film were reviewed in this paper.