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在生产自动电话交换机中,大量使用锡磷青铜件。这些青铜件一般用汽油清洗后,未再进行表面处理,不仅外观欠佳,而且抗腐蚀性较差,与塑料(玻璃增强聚碳酸酯和酚醛塑料)在高温下压合以后,表面颜色显著加深,产品总装后,青铜件已明显锈蚀,严重影响产品外观质量。为了提高产品的质量,需要寻找一种简便而有效的方法对青铜件进行表面钝化。经过反复试验,我们选用双氧水-苯骈三唑对锡磷青铜件进行钝化。用这一方法
In the production of automatic telephone exchange, extensive use of tin phosphor bronze pieces. These bronze parts are generally cleaned with gasoline and are not surface-treated, not only in poor appearance but also in poor corrosion resistance. The color of the surface is markedly increased after lamination with plastic (glass-reinforced polycarbonate and phenoplast) at high temperatures After the product assembly, bronze pieces have been significantly corroded, seriously affecting the appearance of the product quality. In order to improve product quality, we need to find a simple and effective method of surface passivation of bronze pieces. After repeated tests, we use hydrogen peroxide - benzotriazole on tin and phosphorus bronze pieces passivation. Use this method