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一、前言当前国际黄金价格剧升,而电子产品镀金量迅猛增加;为缓和矛盾,近几年西方国家大力开展代金镀层的研究。综合国外文献报导,钯镍合金(80钯/20镍)镀层的技术指标与镀金层相近,且价格较廉,因而在电子产品的接插件、印制板、三极管等应用领域内作为代金镀层。此外,钯镍合金镀层外观呈光亮、柔和的银白色,美观大方,硬度高,抗变色性能好,在高档装饰品方面也具有一定市场。我们从一九八四年初起,就开始进行代金镀层的研制,于四月份镀出钯镍合金簧片,以后又在眼镜架上镀成优质产品,在全国
I. Introduction The current international gold price has risen sharply while the gold content of electronic products has increased rapidly. In order to ease the contradictions, western countries have vigorously carried out research on gold plating in recent years. Comprehensive foreign literature, palladium palladium nickel alloy (80 palladium / 20 nickel) coating specifications and gilded similar, and cheaper, and thus in electronic connectors, printed circuit boards, transistors and other applications as a gold plating. In addition, the appearance of palladium-nickel alloy coating was bright, soft silver white, nice, high hardness, anti-discoloring performance, in the high-end decorations also have a certain market. Since the beginning of 1984, we started to research the generation of gold plating, plated the palladium-nickel alloy reed in April, and plated it into high-quality products on spectacle frames later.