Protective agent for braided copper wire

A technology of copper wire weaving and protective agent, which is applied in the coating process of metal materials, etc., can solve the problems of surface oxidation, oxidative discoloration, expensive processing costs and labor costs, etc., and achieve the effect of inhibiting corrosion and avoiding rust

Active Publication Date: 2015-08-05
TAICANG LINYUAN CABLES & CORDS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the continuous growth of the industry, the quality requirements of the products are also continuously improved. However, in the process of copper processing, the problem of oxidation of copper and copper alloys after processing and cleaning has always been a problem in the industry, especially for electrical equipment, Copper wires, copper braided wires and electrical copper flexible stranded wires connected to electronic components are easily oxidized on the surface after being made into copper wires. It will form a patina, that is, basic copper carbonate, which is green; or it may be oxidized to cuprous oxide, which is brick red, and oxidized slag will form after a few days
Copper is originally a relatively expensive copper wire, coupled with the current expensive processing costs and labor costs, many manufacturers are worried about a pile of oxidized products. How to deal with the delivery of oxidized products has become an urgent problem for many manufacturers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 17wt% polyacrylate emulsion, 15wt% ethanol, 15wt% benzotriazole, 16wt% LaCl 3 , 3wt% sodium molybdate, 5wt% ZnCl 2 , 2wt% fatty acid glycerides, 6wt% propylene glycol methyl ether acetate, and the rest is water.

Embodiment 2

[0024] 15wt% polyacrylate emulsion, 30wt% ethanol, 12wt% benzotriazole, 15wt% Nd(NO 3 ) 3 , 2wt% sodium molybdate, 3wt% ZnCl 2 , 2wt% fatty acid glycerides, 2wt% propylene glycol methyl ether acetate, and the rest is water.

Embodiment 3

[0026] 20wt% polyacrylate emulsion, 15wt% ethanol, 15wt% benzotriazole, 25wt% Ce(NO 3 ) 3 and PrCl 3 A mixture of 3wt% sodium molybdate, 4wt% ZnSO 4 , 3wt% fatty acid glycerides, 4wt% propylene glycol methyl ether acetate, and the rest is water.

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Abstract

The invention provides a protective agent for a braided copper wire. The protective agent comprises the following chemical composition of, by weight, 15 to 20% of polyacrylate emulsion, 15 to 30% of ethanol, 12 to 20% of benzotriazole, 15 to 25% of rare earth salt, 1 to 5% of sodium methoxide, 2 to 6% of zinc salt, 0.5 to 3% of fatty glyceride, 4 to 8% of propylene glycol methyl ether acetate and the balance water. The protective agent for the braided copper wire is non-toxic and environmentally-friendly and a layer of uniform and dense protective film which is difficult to fall off can be produced on the surface of the copper wire after annealing cooling of the copper wire and accordingly the copper wire can be good in discoloration resistance and oxidation resistance and accordingly the storage life and the service life of the copper wire are effectively pretended and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of wire protection for electrical equipment and electronic components, and in particular relates to a protective agent for braided copper wires. Background technique [0002] In today's copper wire processing industry, the market share of copper processing is increasing, especially in electroplating, spraying, cables, circuit boards, CNC, molds, stamping hardware, powder metallurgy and other industries. It is showing an upward trend year by year. [0003] With the continuous growth of the industry, the quality requirements of the products are also continuously improved. However, in the process of copper processing, the problem of oxidation of copper and copper alloys after processing and cleaning has always been a problem in the industry, especially for electrical equipment, Copper wires, copper braided wires and electrical copper flexible stranded wires connected to electronic components are easily oxidized on the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/68
Inventor 曹惠忠
Owner TAICANG LINYUAN CABLES & CORDS CO LTD
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