Surface treatment process for electroplating iron-nickel alloy and electroplating solution thereof

Abstract

The invention discloses a superficial treatment process of an electroplating iron-nickel alloy and the electroplating solution thereof. The electroplating solution is prepared by aqueous solution and the elements include: ferrous sulfate, 100 to 150 grams per liter; nickel sulfate, 120 to 200 grams per liter; boric acid, 30 to 60 grams per liter; saccharin, 0.5 to 3 grams per liter; and sodium benzene sulfinate, 0.1 to 0.4 grams per liter. A work piece is taken as a cathode in the electroplating process. The anode is a Ti-oxide inert anode. A high-frequency switch power supply is adopted. An iron-nickel film coating can be got by electroplating with the current density of 5-10A / dm<2>. After treatment by the invention, the work piece surface is plated with an iron-nickel alloy coating which contains 40 percent to 60 percent of iron. The coating structure is a structure which is amorphous but includes nano-crystalline. The surface of the coating structure is flat and uniform and has fine crystallization. The alloy plating is characterized by good anti-corrosion performance, good ductility and high hardness, etc. Compared with the nickel plating technique, the coating got by the invention is more superior in cost performance, has the same service performance and at the same time greatly reduces the production cost and has very good economical benefits.

Description

technical field [0001] The invention belongs to the technical field of surface treatment, and relates to a novel electroplating iron-nickel alloy surface treatment technology to replace the nickel plating process technology and the used electroplating solution. Background technique [0002] The nickel plating process is widely used in various aspects of the electroplating industry, and is used for surface treatment of metal devices for anti-corrosion and decoration purposes. [0003] However, since nickel resources are non-renewable resources, with the continuous increase of nickel consumption, the supply has been seriously insufficient, causing the price to soar. The cost of nickel plating in various electroplating enterprises remains high. Electroplating enterprises are seeking new technologies for saving nickel and replacing nickel. From the nature of the coating, the iron-nickel alloy should be the preferred coating. [0004] In the 1960s and 1970s, my country's elect...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a low-cost, high-performance nickel-substituting process, that is, the electroplating iron-nickel alloy surface treatment process and the electroplating solution used, which can greatly save the use of nickel, increase the content of iron, and overcome the problems of electroplating in the past. The content of iron in the process technology is low, which cannot improve and stabilize the performance of the coating.

Images