镀银件腐蚀变色及保护

Discoloration of Silver Plated Articles and Its Protection

分析了镀银件产生变色的原因，并通过试验研究了经各种保护处理的镀银件在腐蚀性介质如SO2和H2S，日光和紫外线等照射下的变色情况。提出了选择镀银件保护材料应满足的要求。

Causes for the discoloration of silver plated articles were analyzed. In the corrosive media of sulfur dioxide, hydrogen sulfide, sunlight and ultraviolet rays, discoloration of silver deposits and the deposit with various post treatment were tested. The principle of selecting appropriate protective matirials was also proposed.