Copper and zinc plating method of steel wires and automatic control system

Abstract

The invention discloses a copper and zinc plating method of steel wires and relates to the field of electro-plating of steel wires. The method includes the steps of: a) according to basic process parameter values of copper and zinc plating of the steel wires, calculating target values of target process parameters; b) measuring actual values of the target process parameters; c) on the basis of the difference value between the actual values and the target values, generating a regulation signal through proportion-integration-differential (PID) regulation and sending the regulation signal to a rectifier, which then outputs a control signal according to the regulation signal to regulate the target process parameters until the actual values reach a preset control range of the target values. The method can automatically and accurately control the process of plating copper and zinc on the steel wires, saves time and labor intensity, can form uniform copper and zinc layers, is low in thickness error, is good in plating layer quality stability and repeatability, and has high production efficiency.

Description

technical field [0001] The invention relates to the field of steel wire electroplating, in particular to a steel wire copper-plating and galvanizing method and an automatic control system. Background technique [0002] Copper plating and galvanizing is an important process in the steel wire production process. This process forms two layers of coatings on the surface of the steel wire from the inside to the outside by electroplating: copper and zinc. The layers interdiffused to form a brass alloy layer on the surface of the wire. The fluctuation of the thickness and uniformity of the copper layer and the zinc layer directly affects the quality of the subsequent products of the steel wire, so it becomes an important indicator to measure the quality of the steel wire and directly affects the sales of the steel wire. For example, the steel wire coated with a brass alloy on the surface can be used as Steel cord, in radial tires made of steel cord as a reinforcing material, the t...

AI Technical Summary

Problems solved by technology

At present, the method used in the steel wire copper plating and galvanizing process is to manually set the constant current process parameters of the rectification current. This method relies on the personal experience of the craftsmen to set the constant current process parameters of the rectification current. Poor control repeatability, large thickness errors and poor uniformity of copper and zinc layers

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