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一、概述铜和锌组成的黄铜镀层呈柠檬黄色或金黄色,它的色泽鲜艳美观,常用来作为装饰性镀层。在镀黄铜时,铜和锌的比例是很重要的参数,而镀层中铜含量的多少,也会影响镀层的装饰质量,为此在电镀过程中要严格控制铜和锌的合理比例,我们在实践中,一般按7:3的比例。二、高氰镀黄铜存在的问题我厂过去采用高氰镀黄铜,该工艺存在下列问题。(1)毒性强。对工人健康的危害较大,废水
First, an overview Copper and zinc brass plating composition was lemon yellow or golden yellow, its bright color and beauty, commonly used as a decorative coating. In the brass plating, the ratio of copper and zinc is a very important parameter, and the amount of copper in the coating will affect the decorative quality of the coating, for the electroplating process to strictly control the reasonable proportion of copper and zinc, we In practice, the general ratio of 7: 3. Second, the problem of high-cyanide brass I plant in the past with high-cyanide brass, the process of the following problems. (1) strong toxicity. Hazard to the health of workers, waste water