Alkaline graphene zinc-iron alloy electroplating solution and electroplating process thereof

Abstract

The invention belongs to the technical field of electroplating, and particularly relates to an alkaline graphene zinc-iron alloy electroplating solution and an electroplating process thereof. The alkaline graphene zinc-iron alloy electroplating solution of each liter is prepared from 8-13 g of zinc oxide, 90-125 g of sodium hydroxide, 50 g of seignette salt; 50-90g of graphene nano-particles, 0.35-0.6 g of Fe+, 4 ml-8 ml of a DE additive, 0.03 g-0.06 g of vanillic aldehyde and the balance water. The method comprises the steps of S1, impurity removal and degreasing, S2, water washing acidification; S3, metal electroplating and S4, water washing drying. The temperature of the electroplating solution ranges from 15 DEG C to 30 DEG C; the pH of the electroplating solution ranges from 9 to 14;seignette salt serves as a complexing agent and is most complex, and meanwhile seignette salt is the impurity shelter of alkaline zincate zinc plating; and meanwhile, a certain amount of free tartaricacid exists in the electroplating solution, and the phenomenon that the electroplating solution is instable during electroplating can be avoided.

Description

technical field [0001] The invention belongs to the technical field of electroplating, in particular to an alkaline graphene-zinc-iron alloy electroplating solution and an electroplating process thereof. Background technique [0002] In the field of surface technology, with the development of the times, the protection performance requirements of many products are more stringent, and single-metal plating can no longer meet the requirements, and the performance of alloy plating is better than that of single-metal plating. Since the zinc coating is a good protective layer for the steel substrate, the alloy coating in the field of protective electroplating is still based on zinc. For example, zinc-iron alloy electroplating, zinc-nickel alloy electroplating and zinc-cobalt alloy electroplating and other technologies are more and more widely used due to their excellent corrosion resistance. [0003] Among them, the properties of zinc-iron alloy plating solution, namely current ef...

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Problems solved by technology

[0006] In order to make up for the deficiencies in the prior art, a kind of alkaline graphene zinc-iron alloy electroplating solution and its electroplating process proposed by the present invention, the present invention is mainly used to solve existing electroplating solution due to the addition of Fe +2 If the content is higher or lower, due to the different types of complexing agents added, the corrosion protection effect of the electroplating solution on the workpiece will be reduced, and when the electroplating solution is electrolyzed under the state of uneven current distribution in the electroplating pool 1, uneven Stable phenomenon, which in turn affects the high-efficiency electroplating protection effect of the electroplating solution on the workpiece

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