An electroplating process

Abstract

The invention relates to an electroplating technology which mainly comprises a front treatment process, an electrocoppering process and an aftertreatment groove. The front treatment process mainly comprises the steps of ultrasonic oil removal, electrolytic degreasing, washing, activating and washing; a front treatment groove is divided into three parts including an ultrasonic oil removal groove, an electrolytic degreasing groove and an activating groove, and the three parts independently exist in closed space; and the electrocoppering process mainly comprises copper pre-plating, copper plating, recovering and washing; and an aftertreatment process mainly comprises the steps of drying and oil immersion. The electroplating technology is mainly characterized in that a steel strip is in an S-shaped walking direction in the overall process, and the cost of the steel strip is about one third of the cost of a production line. A closed treatment groove can conduct emergency treatment, meanwhile, the phosphorus content in sulfate copper electroplating is extremely small, plating layer bonding is more compact, a manufactured Bundy pipe is not prone to desoldering, resources can be effectively saved, and safety of persons is protected; and a cyanide copper plating solution is used for conducting copper preplating firstly, and therefore adhesiveness of the plating layer on the steel strip is good, and meanwhile, the electroplating technology meets the current environment-friendly production principle.

Description

technical field [0001] The invention relates to a steel strip electroplating process for Bondi pipes, specifically relating to the technical field of continuous electroplating of steel strips. Background technique [0002] Bondi tubes are mainly produced by copper-plated steel strips, and are widely used in automobile oil pipes, floor heating pipes, air-conditioning pipes, etc. Cyanide copper plating can obtain a dense, smooth, and well-bonded coating, so the continuous copper plating of steel strips adopts the cyanide copper plating process. Although the country has clearly eliminated the cyanide process, no alternative process has been found so far, and because Widely used in precision electronic instruments, precision instruments, aerospace and other fields, it can only be deferred and eliminated. Cyanide copper plating is the most widely used and earliest copper plating method. However, due to the high phosphorus content in cyanide copper plating, the bonding force of t...

AI Technical Summary

Problems solved by technology

[0003] According to comparative literature, the original continuous copper plating of steel strip requires multiple copper plating tanks, auxiliary tanks and other auxiliary equipment. The continuous copper plating production line of steel strip is 80 meters long and occupies a large area. About 20,000 yuan, the one-time investment is too large, the overall production efficiency is low, and a large number of staff are required for maintenance operations, resulting in a waste of financial and material resources

Images