硫酸盐体系三价铬常温电镀黑铬工艺  

Black trivalent chromium plating process in sulfatesystem at normal temperature

作　　者：郭崇武[1] 赖奂汶[1] 

机构地区：[1]广州超邦化工有限公司,广东广州510460

出　　处：《电镀与涂饰》2012年第7期9-11,共3页Electroplating & Finishing

摘　　要：开发了 Trich-7677 硫酸盐体系三价铬电镀黑铬的新工艺。该工艺在常温下的沉积速率达 0.031 μm/min,能耗低,镀液性能稳定,操作简单,便于维护。镀层光滑,呈枪黑色,厚度可达 0.2 μm,中性盐雾试验 48 h 不变色,恒定湿热试验、冷热冲击试验和人造汗液测试均合格。A novel process called Trich-7677 for black trivalent chromium plating in sulfate system was developed. The deposition rate of the given process reaches 0.031 μm/min. The plating bath has advantages of low energy consumption, high stability, simple operation, and easy maintenance. The chromium coating is smooth and gun-black with a thickness of 0.2 μm, does not tarnish after neutral salt spray test for 48 h, and can pass the steady-state damp heat test, cold-heat shock test, and artificial sweat test.

关 键 词：三价铬 电镀黑铬 硫酸盐体系 沉积速率 镀液稳 定性 

分 类 号：TQ135.11[化学工程—无机化工]