一、前言随着我国电器、电子工业的发展,白银用量与日俱增,产销相差悬殊,供不应求矛盾突出。以苏州市为例1965年工业用银426kg,1980年达5400kg,增长了12倍。国外也是如此。为了解决这个矛盾,世界先进国家从多方面开展节约用银的研究,如开展触 I. Introduction With the development of China’s electrical and electronic industries, the amount of silver is increasing day by day, the difference between production and sales is huge, and the contradiction between supply and demand is outstanding. Take Suzhou as an example. In 1965, industrial silver was 426kg, up to 5400kg in 1980, an increase of 12 times. The same is true abroad. In order to solve this contradiction, the advanced countries in the world have carried out studies on saving silver with various aspects, for example,