Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Depositing predominantly alloy coating
Patent
1991-03-06
1993-09-28
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Depositing predominantly alloy coating
106 129, C25D 356
Patent
active
052484068
ABSTRACT:
An electroplating bath solution for zinc-cobalt-iron alloy and electroplated product electroplating by the bath solution are described.
The electroplating bath solution containing 5-30 g/l Zn, 0.01-0.3 g/l Co and 0.02-0.5 g/l Fe, and electroplating layer of the product contains 0.1-0.6 wt % Co, 0.2-0.7 wt % Fe and Zn.
The electroplated product gives a high quality black chromate film at cheaper cost than before.
REFERENCES:
patent: 4488942 (1984-12-01), Martin et al.
patent: 4581110 (1986-04-01), Tsuchida et al.
patent: 4717458 (1988-01-01), Martin et al.
patent: 4983263 (1991-01-01), Yosuda et al.
Bolam Brian M.
Ebara-Udylite Co., Ltd.
Niebling John
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