羟基乙叉二膦酸电解液预镀铜新工艺

摘要

For the sake of environmental protection and pollution control, and using non- cyanide copper plating process to replace cyanide copper plating process, a new copper pre- plating process using hydrox-yl-1 ,1 -diphosphonic acid bath for aluminum alloy parts was developed by experiments. Production practice showed that this new bath has a good covering and throwing power, a simple maintenance, a greater binding strength and a qualification rate up to 99%.%为了保护环境、消除污染,实现以无氰镀铜工艺代替氰化镀铜工艺,经实验研究,采用羟基乙叉二膦酸电解液镀铜工艺应用在铝合金零件表面镀铜/镍/铬工艺路线中预镀铜工序.经过生产实践证明,羟基乙叉二膦酸镀铜电解液深镀能力和均镀能力优良；镀液维护简单；镀层与铝合金基体结合力良好,产品合格率达99％以上.