Preparation method for aluminum enamel covered wire

Abstract

The invention relates to an aluminum enameled wire and a method for manufacturing the same. The aluminum enameled wire comprises aluminum round conductor which comprises a primer layer, a middle layer and a surface insulation layer, wherein the primer layer is an epoxy resin layer, the middle layer is a high temperature polyester layer, a polyester inferior amine paint layer or a modified polyester resin layer and the surface insulation layer is polyamide-imide paint layer. The aluminum enameled wire is made in the following steps that: 1) an aluminum conductor is arranged on a drawbench to be pulled into aluminum round conductor, 2) the aluminum round conductor is pulled through a sink for cleaning, 3) epoxy resin is coated, 4) high temperature polyester inferior amine paint or modified polyester resin is coated, 5) polyamide-imide paint is coated. The invention is simple and reasonable in structure, low in manufacturing cost, strong in adhesion and high in product yield rate, and has the features of high temperature resistance, coolant resistance, good surface quality and optimal thermal performance.

Description

technical field [0001] The invention relates to an aluminum enameled wire, in particular to an aluminum enameled wire and a manufacturing method thereof. Background technique [0002] With the development of science and technology, the improvement of insulation materials for electrical appliances and the improvement of insulation technology, the requirements for heat resistance of insulation materials are also getting higher and higher, and the market demand is growing rapidly. The technical level of domestic production of high-grade enamelled round aluminum wires generally has defects such as weak adhesion, hot stamping cracks, and rough surfaces in the production process, which affect product quality and yield. Moreover, the largest domestic enamelled aluminum wire manufacturers Among them, the product yield of enameled aluminum round wire is relatively low, only 89.6-93.6%, and the DV value of enameled wire, that is, the product of conductor wire diameter and conductor sp...

AI Technical Summary

Problems solved by technology

The technical level of domestic production of high-grade enamelled round aluminum wires generally has defects such as weak adhesion, hot stamping cracks, and rough surfaces in the production process, which affect product quality and yield. Moreover, the largest domestic enamelled aluminum wire manufacturers Among them, the product yield of enamelled aluminum round wire is relatively low, only 89.6-93.6%, and the DV value of enameled wire, that is, the product of conductor wire diameter and conductor speed) is below 20

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