Processing method for paper coated insulation electromagnetic wire single side wax coating

Abstract

The invention discloses a processing method for waxing on a single-side of a paper-wrapped insulating magnet wire. A waxing device arranged between a pressure tractor and a take-up machine waxes a single side of the paper- wrapped insulating magnet wire, and the processing method comprises the following steps: a bare wire enters a single line paper wrapping machine via a pay off rack, a balance wheel and a pressing wheel, then enters a combination paper wrapping machine via the pressing wheel, and afterwards enters the pressure tractor via the pressing wheel and the balance wheel; after the magnet wire is extracted out by the pressure tractor, the magnet wire enters the waxing device; a wax layer is formed on the insulated paper of the magnet wire; and then the magnet wire is wound on thetake-up machine. Through waxing on the lower side of the magnet wire, the processing method reduces wear of an insulating layer caused when a manufacturer winds a coil, improves the performance of a transformer, and increases the qualified rate of the transformer.

Description

technical field [0001] The invention discloses a processing method for paper-wrapped insulated electromagnetic wire, in particular to a processing method for coating wax on one side of paper-wrapped insulated electromagnetic wire. Background technique [0002] High-grade transformers, especially those above 500KV, have very high requirements for the paper-wrapped insulating layer, and the insulating layer must not have the slightest wear and tear. The production method of the existing paper-wrapped insulated magnet wire is shown in Figure 1, and the production process is as follows: [0003] Bare wire→pay-off frame→balance wheel→pressing wheel→single-line paper wrapping machine→pressing wheel→combined paper wrapping machine→pressing wheel→balance wheel→pressure traction machine→wire take-up machine. [0004] It can be seen from Figure 1 that the wires on the wire take-up machine are in direct contact with each other, and are wound together layer by layer. In the process of...

AI Technical Summary

Problems solved by technology

In the process of winding the coil, when the transformer manufacturer releases the wire from the reel, due to the direct contact between the wire and the friction between the wire and the wire, the insulation layer will often be worn away, resulting in The performance of the coil cannot meet the requirements. When doing experiments such as partial discharge, the indicators cannot meet the requirements, which will affect the performance of the transformer.

Images