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一、概述由于金在使用过程中能保持其完整性而不被磨损和腐蚀,虽然它的价格很贵,但在电子工业上镀金零件的数量却在不断增加,而各种节金和代金技术的采用,在美国金的总消耗量还有逐年下降的趋势。 (一)美国近年来各种贵金属的消耗情况表1 列举出1977～1980年期间内,美国在金、银、铑、钯等贵金属方面的消耗量情况。美国电子产品电镀贵金属零件的数量增长情况是:半导体和接触器件,1980年比1977年增加一倍;印制线路板平均每年增加
I. Overview As the gold in the course of its use to maintain its integrity without being worn and corroded, although its price is very expensive, but in the electronics industry is increasing the number of gold-plated parts, and a variety of section gold and gold technology The total consumption of gold in the United States there is a downward trend year by year. (I) Consumption of Various Precious Metals in the United States in Recent Years Table 1 shows the consumption of precious metals such as gold, silver, rhodium and palladium in the United States for the period 1977-1980. The increase in the number of precious metal parts electroplated in the United States is: Semiconductor and contact devices doubled in 1980 compared to 1977; printed circuit boards averaged an annual increase