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A manufacturing method of a polyurethane enameled round copper wire

A technology of polyurethane paint and manufacturing method, applied in the manufacture of cables/conductors, used to reduce the size of conductors/cables, electrical components, etc., can solve the problem of enameled wire tensile strength, elongation and other mechanical properties reduction, enameled wire manufacturing process Long time consumption, good mechanical properties of enameled wire, etc., to achieve the best balance between processing efficiency and process effect, speed up wire drawing effect, improve production quality and mechanical properties

Active Publication Date: 2019-01-11
浙江郎立电工器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology and the increase of market demand, the current manufacturers have higher and higher requirements for the production efficiency of enameled wires. As a result, manufacturers generally increase the production efficiency of copper rods by speeding up the drawing speed of copper rods when making enameled wires; but As the wire drawing speed of the copper rod is increased, the quality of the copper wire will decrease, and the mechanical properties such as tensile strength and elongation of the enameled wire will be greatly reduced after the enameled wire is made; The mechanical properties of the finished enameled wire will cause the overall production process of the enameled wire to take a long time, which cannot meet the manufacturer's demand for enameled wire production efficiency
In addition, conventional wire drawing machines need to consume a large amount of wire drawing oil during the wire drawing process of copper wires. In order to ensure the performance parameters of enameled wire products, manufacturers generally use synthetic wire drawing oils with higher prices to improve the wire drawing quality of copper wire semi-finished products. Thereby increasing the cost of enameled wire during production
Therefore, the existing manufacturing methods for enameled wire cannot simultaneously have the characteristics of high production efficiency, low production cost and good mechanical properties of enameled wire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1. A method for manufacturing polyurethane enameled copper round wire, comprising the following steps:

[0018] ① Conduct the first wire drawing on a copper rod with a diameter of 2.6mm. The speed of the copper rod during the first wire drawing is 800-1000 m / min. The diameter of the copper rod after wire drawing is 1.13mm, and the A copper wire is obtained;

[0019] ② Carry out the second wire drawing on the A copper wire, the running speed of the A copper wire during the second wire drawing is 1200-1400 m / min, the diameter of the A copper wire after wire drawing is 0.21mm, and the B copper wire is obtained;

[0020] ③Third drawing of B copper wire, the running speed of B copper wire during the third drawing is 1200-1800 m / min, the diameter of B copper wire after drawing is 0.04-0.12mm, and D copper wire is obtained;

[0021] ④ After passing the D copper wire through the annealing furnace, anneal the D copper wire through the annealing furnace at 450-550°C. The...

Embodiment 2

[0029] Example 2. A method for manufacturing polyurethane enameled copper round wire, comprising the following steps:

[0030] ①Draw the copper rod with a diameter of 2.6mm for the first time. The speed of the copper rod during the first wire drawing is 1000 m / min. The diameter after drawing is 1.13mm, and A copper wire is obtained;

[0031] ②Draw A copper wire for the second time. The speed of A copper wire during the second wire drawing is 1400 m / min. The wire drawing oil used in the second wire drawing is Ji 3 type mineral wire drawing oil. The diameter after drawing is 0.21mm, and B copper wire is obtained;

[0032] ③Third drawing of the B copper wire. The speed of the B copper wire during the third drawing is 1200 m / min. The drawing oil used for the third drawing is fully synthetic drawing oil. After the B copper wire is drawn The diameter is 0.12mm, get D copper wire;

[0033] ④ After passing the D copper wire through the protective tube of the annealing furnace, fil...

Embodiment 3

[0036] Example 3. A method for manufacturing polyurethane enamelled copper round wire, comprising the following steps:

[0037] ①Draw the copper rod with a diameter of 2.6mm for the first time. The speed of the copper rod during the first wire drawing is 800 m / min. The wire drawing oil used in the first wire drawing is A2 type mineral wire drawing oil. The diameter after drawing is 1.13mm, and A copper wire is obtained;

[0038] ② Conduct the second wire drawing on the A copper wire. The speed of the A copper wire during the second wire drawing is 1200 m / min. The wire drawing oil used in the second wire drawing is Ji 3 type mineral wire drawing oil. The diameter after drawing is 0.21mm, and B copper wire is obtained;

[0039] ③Third drawing of the B copper wire. The speed of the B copper wire during the third drawing is 1800 m / min. The drawing oil used in the third drawing is fully synthetic drawing oil. After the B copper wire is drawn The diameter is 0.04mm, get D copper ...

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Abstract

The invention discloses a manufacturing method of a polyurethane enameled round copper wire, includes the following steps At first, the cop rods are wire-drawn for the first time in turn, the copper wire is annealed at 450-550 DEG C in an annealing furnace, and finally, the copper wire is coated with polyurethane paint on the surface of the copper wire, heated and solidified, and the finished copper wire is rewinded to obtain the finished copper wire. The invention can simultaneously have the characteristics of high production efficiency, low production cost and good mechanical properties of enamelled wires.

Description

technical field [0001] The invention relates to a method for manufacturing enamelled round copper wire, in particular to a method for manufacturing polyurethane enamelled round copper wire. Background technique [0002] With the development of science and technology and the increase of market demand, the current manufacturers have higher and higher requirements for the production efficiency of enameled wires. As a result, manufacturers generally increase the production efficiency of copper rods by speeding up the drawing speed of copper rods when making enameled wires; but As the wire drawing speed of the copper rod is increased, the quality of the copper wire will decrease, and the mechanical properties such as tensile strength and elongation of the enameled wire will be greatly reduced after the enameled wire is made; The mechanical properties of the finished enameled wire will cause the overall production process of the enameled wire to take a long time, which cannot meet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00B21C37/04
CPCB21C37/042H01B13/00H01B13/0006
Inventor 郎新利
Owner 浙江郎立电工器材有限公司
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