Method for producing self-adhesion compound type enameled aluminium round wire

Abstract

A method for producing a self-adhesion compound type enameled aluminium round wire is characterized by comprising the steps of conducting continuous wire-drawing, cleaning and softening on a round aluminum rod, applying primer, an intermediate layer, a finish layer and an self-adhesion layer on a coating of the aluminium round wire after 25-33 times of fine painting and drying, and conducting automatic disc changing and winding up after on-line monitoring and surface lubricating, wherein the primer adopts aromatic polyamide imide paint, the intermediate layer adopts polyesterimide paint, the finish layer adopts polyamide imide paint, and the self-adhesion layer adopts aromatic polyamide self-adhesion paint. The self-adhesion compound type enameled aluminium round wire is wide in temperature-resisting range, resistant to low temperature and resistant to quick temperature variation.

Description

technical field [0001] The invention relates to a production method of enamelled aluminum round wire, in particular to a self-adhesive composite type (aromatic polyamide self-adhesive polyamide-imide composite polyester) with wide temperature resistance range, low temperature resistance and rapid temperature change The production method of enamelled aluminum round wire with aromatic polyamideimide primer. Background technique [0002] In recent years, due to the increasingly depleted resources of copper conductor materials and high prices, more and more companies at home and abroad have used aluminum conductor materials instead of copper conductor materials to expand the application range of enamelled aluminum round wires in order to save resources. , effectively reduce production costs and maintain the competitiveness of products in the downstream manufacturing industry. [0003] However, the tensile strength, hardness and wear resistance of aluminum are not as good as cop...

AI Technical Summary

Problems solved by technology

In Chinese patent ZL 200910145085.1, when producing high heat-resistant composite enamelled aluminum round wire, it is necessary to intermittently draw and clean the round aluminum rod multiple times, anneal in an annealing furnace, and after cooling, the aluminum round wire reaching a predetermined diameter Paint with polyesterimide paint and polyamideimide paint, and the two-layer paint film of the primer layer and the topcoat layer of this process is only coated with 6 to 8 paints, and the paint film of each paint is thicker, which is easy Problems such as uneven coating and coating eccentricity will affect the stability of the quality of the enameled aluminum round wire produced in the end. Moreover, although the enameled wire produced in this way has good thermal shock resistance, it is resistant to low temperature and fast The temperature change performance is not good

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