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Process for making voltage transformer enamel-covered lenticular wires

An enameled flat wire, production process technology, used in coil manufacturing, flat/ribbon cables, electrical components, etc.

Active Publication Date: 2005-11-23
JIANGSU ZHONGRONG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects in the existing transformer enamelled flat wire product quality and production process, and to provide a copper bare wire production that adopts an extrusion molding process to replace the traditional cold drawing process. Production process of transformer enamelled flat wire omitting vacuum annealing process for finished wire production

Method used

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  • Process for making voltage transformer enamel-covered lenticular wires
  • Process for making voltage transformer enamel-covered lenticular wires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1, the production of enameled rectangular wires for transformers by one-step extrusion molding process

[0044] The transformer enameled rectangular wire is produced by the extrusion one-step molding process of the present invention, and the copper rod is used as the raw material to produce the enameled rectangular wire through extrusion molding, painting and finished wire winding. The extrusion molding production process is partially driven by extrusion The one-time extrusion molding process composed of continuous extrusion unit consisting of feeding, wheel groove friction extrusion and heating, and extrusion molding through die holes replaces the traditional cold-drawn wire drawing process. Extrusion one-time forming continuous extrusion unit model TLJ300, produced enameled rectangular wire specification QZYB-2 / 180 2×11.8mm, size deviation 2 +0.02 / -0.01mm , 11.8 +0.05 / -0.02mm , The production tonnage is 18 tons. The overall production process includes: copper rod ...

Embodiment 2

[0066] Example 2, the use of one-step extrusion molding process to produce transformer enameled rectangular wire

[0067] The transformer enameled rectangular wire is produced by the extrusion one-step forming process of the present invention, and the production takes copper rods as raw materials. Extrusion one-time forming continuous extrusion unit model TLJ250, the produced enameled flat wire specification QQB-1 / 120 2.50×5.30mm, size deviation 2.50 ±0.02mm , 5.30 ±0.04mm , The production tonnage is 35 tons. The overall production process includes: copper rod conveying and straightening-one-time extrusion molding and cooling and oxidation prevention-soft bare wire take-up-painting and baking line-painting and baking operation-finished product take-up.

[0068] The main process equipment is the same as in Example 1 except that the one-time forming continuous extrusion unit is TLJ250.

[0069] The main process control conditions are as follows:

[0070] 1. Copper rod specification ...

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Abstract

This invention provides one transducer paint enamel wire production method, which uses copper bar as materials to process the enamel wire through pressing and shaping and painting or product processing, wherein, the production adopts pressing pushing feeding and wheel groove friction pressing with temperature through module hole pressing to form once shaping process to substitute the traditional process. The process saves the annealing step and comprises the steps: copper transmission correction; pressing by one time and cooling anti-oxidation; soft bare wire receiving wires; painting and drying wires; paint baking; product receiving line.

Description

Technical field [0001] The invention relates to the processing or treatment of wires, in particular to a production process method of transformer enameled rectangular wires. Background technique [0002] The production of bare copper conductors of the existing transformer enameled rectangular wires mainly uses the traditional cold-drawn wire drawing process. Due to the limitation of the production process, it is impossible to solve the burrs, peeling, oil stains and other enameled flat wires that exist in the enameled flat wire products. Quality defects. These defects are the fatal injuries that cause the coils to be easily short-circuited and burned after the transformer is energized. The internal quality of the transformer product is unstable, and there are many faults and poor reliability during operation. Therefore, there are hidden accidents at any time, causing people to use the transformer. It is worried that accidents caused by quality failures may ...

Claims

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Application Information

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IPC IPC(8): H01B13/00
Inventor 孙国平蒋国梁
Owner JIANGSU ZHONGRONG ELECTRIC
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