High-tension copper-clad aluminum varnished wire processing method

Abstract

The invention relates to a copper-clad aluminum varnished wire processing method which comprises the following steps of 1, preparing a copper-clad aluminum wire core having copper content of 0.1-0.63wt%; 2, drawing the copper-clad aluminum wire core multiple times to obtain a wire having a predetermined diameter; 3, subjecting the copper-clad aluminum wire core to internal oxidation to obtain a copper-clad aluminum wire core having Al2O3 content of substantially 0.2 to 1.2 wt%; drawing the obtained Cu-Al2O3 copper-clad aluminum wire core having the predetermined size; 4, varnishing the copper-clad aluminum wire multiple times; 5, annealing the varnished copper-clad aluminum wire core in an annealing furnace, and placing the annealed copper-clad aluminum wire core in an oven for drying; and 6, collecting the copper-clad aluminum wire core. The produced copper-clad aluminum wire core has high tension.

Description

technical field [0001] The invention relates to a copper-clad aluminum enameled wire processing technology for enameled wire production. Background technique [0002] Enameled wire is the most representative product in electronic wire. Enameled wire is a main variety of winding wire, including copper-clad aluminum core and paint layer coated on the outside of copper-clad aluminum core. After the bare wire is annealed and softened, it is then passed through Painted and baked many times, it has four major properties: mechanical properties, chemical properties, electrical properties, and thermal properties. Copper-clad aluminum enameled wire is a new type of electromagnetic wire that uses copper-clad aluminum material as the inner conductor. Its characteristics are between copper and aluminum, combining the advantages of copper's excellent conductivity and aluminum's light weight. Micro motor rotor coils and various electromagnetic wires are widely used. [0003] With the rap...

AI Technical Summary

Problems solved by technology

However, due to technical problems, the field of large-scale wire used in large transformers has been blank in China, and the amount of enameled wire used in this field is very large.