Iron piece chemical nickel plating process

Abstract

The invention discloses an iron piece chemical nickel plating process. The process is characterized by comprising the steps of: 1) degreasing: heating a 5%-10% degreasing powder to 65-70 DEG C and soaking for 5-10 min; 2 ) washing with water; 3) pickling and activating; 4) washing; 5) chemical plating: rinsing the workpiece, heating to 85-90 DEG C and conducting plating for 10-20 min; 6) washing: washing in a water tank, or rinsing with tap water, and washing off the plating liquid on the workpiece; 7) passivating by a 5% potassium dichromate[ dichromate or chromic anhydride for 1-3 min, wherein the discoloration of the coating is prevented, and the passivation solution is at room temperature, and does not need heating; 8) washing: cleaning the remaining passivation solution on the workpiece; 9) washing by pure water to prevent the watermark and other residues on the workpiece, and heating the pure water to 80-100 DEG C; and 10) drying by an oil-free air compressor air gun, or stoving. The process is simple, eliminates a lot of repetitive processes, and improves work efficiency.

Description

technical field [0001] The invention relates to an electroless nickel plating process for iron pieces. Background technique [0002] The method of plating a layer of nickel on metal or some non-metal by electrolysis or chemical method is called nickel plating. At present, the electroless nickel plating process of iron parts is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of the produced parts, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the products market competitiveness is not high. For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a...

AI Technical Summary

Problems solved by technology

At present, the electroless nickel plating process of iron parts is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of the produced parts. Many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the products The market competitiveness is not high

For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences