亚铁离子对三价铬电沉积的影响  

Effects of Ferrous Ions on Trivalent Chromium Electrodeposition

作　　者：李丹莹 谢育生 

机构地区：[1]广东省城市建设高级技工学校材料工程与检测系,广东广州510520 [2]广东惠州美益电镀厂品质部,广东惠州516000

出　　处：《广东化工》2014年第21期83-85,共3页Guangdong Chemical Industry

摘　　要：文章在三价铬电沉积研究基础上,以甘氨酸——氯化物型铬基镀液为基础,研究了亚铁离子是否在三价铬电沉积中起到催化作用;并在此基础上,对电流密度、镀液温度、施镀时间做出研究。结果表明,微量亚铁离子对三价铬电沉积能起到催化的作用;在电沉积条件方面,随着电流密度增大镀层的厚度增大,而外观则先变好再变差;温度升高,镀层厚度和外观质量都降低;时间越长镀层越厚,但外观会变差。Based on the study of trivalent chromium electrodeposition on the basis of glycine-chloride-type chromium-based bath, based on studies of the ferrous ions play a catalytic role in whether trivalent chromium electrodeposition; and on this basis, the current density, bath temperature, plating time to make a study. The results show that the trace of ferrous ions trivalent chromium electrodeposition can play a catalytic role; electrodeposition conditions, the current density increases as the coating thickness increases, the better the appearance of the first change is then worse; temperature rise high, coating thickness and appearance quality are reduced; longer thicker coating, but the appearance will deteriorate.

关 键 词：CR3+ Fe2+ 电沉积 

分 类 号：TQ153.2[化学工程—电化学工业]