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Anti-oxidation processing method of copper wire

A processing method and anti-oxidation technology, which is applied to the device and coating of the surface coating liquid, can solve the problems of difficult control of the coating effect, color difference of the product, and influence, etc., achieve good anti-oxidation effect and reduce oxidation Effect

Active Publication Date: 2014-03-19
浙江佳博科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of electroplating, oil spraying, and painting is too high, and the inherent natural color of copper and alloys cannot be reflected, which will also have a relatively large impact on electrical conductivity and welding performance; passivation treatment will cause the product to appear The color difference, and its anti-oxidation time is not long; the difficulty of the film protection process is that the effect of the film is difficult to control. If the film is too thin, it will not have a protective effect, and if it is too thick, it will affect the welding performance and electrical conductivity of the copper wire.

Method used

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  • Anti-oxidation processing method of copper wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The copper wire anti-oxidation processing method of the present embodiment comprises the following steps:

[0029] (1) Smelting: Take the copper material and put it in the protective gas, keep the pressure at 0.1 and the temperature at 1200°C, and smelt for 3 hours;

[0030] (2) Wire drawing: drawing the copper material smelted in step 1) to obtain copper wire of the required size;

[0031] (3) Annealing: Pass the copper wire obtained in step 2) into a hydrogen-nitrogen mixed gas at a temperature of 500°C at a speed of 0.5m / s, and at the same time, drop evenly onto the copper wire at a speed of 10ml / min Anti-oxidation solution: the copper wire passes through the hydrogen-nitrogen mixed gas for 2 seconds.

[0032] The anti-oxidation solution is an aqueous solution with a concentration of 0.05% after mixing anionic surfactant and isopropanol in a weight ratio of 1:1. The product of Japan Oil Research Institute (Co., Ltd.) is selected, and the model is 500-OG. Antioxidan...

Embodiment 2

[0034] The copper wire anti-oxidation processing method of the present embodiment comprises the following steps:

[0035] (1) Smelting: Take the copper material and put it in the protective gas, keep the pressure at 0.01 and the temperature at 1250°C, and smelt for 2 hours;

[0036] (2) Wire drawing: drawing the copper material smelted in step 1) to obtain copper wire of the required size;

[0037] (3) Annealing: Pass the copper wire obtained in step 2) into a hydrogen-nitrogen mixed gas at a temperature of 600°C at a speed of 1.5 m / s, cover the copper wire with a non-woven fabric, and The non-woven fabric is evenly dripped with the anti-oxidation solution at a rate of 5ml / min; the copper wire passes through the hydrogen-nitrogen mixed gas for 1.3s, and it is obtained.

[0038] The anti-oxidation solution is an aqueous solution with a concentration of 0.15% after mixing anionic surfactant and isopropanol in a weight ratio of 1:1. The product of Japan Oil Research Institute (C...

Embodiment 3

[0041] The copper wire anti-oxidation processing method of the present embodiment comprises the following steps:

[0042] (1) Smelting: Take the copper material and place it in a protective gas, keep the pressure at 0.06 and the temperature at 1300°C, and smelt for 4 hours;

[0043] (2) Wire drawing: drawing the copper material smelted in step 1) to obtain copper wire of the required size;

[0044] (3) Annealing: Pass the copper wire obtained in step 2) into the hydrogen-nitrogen mixed gas at a temperature of 550°C at a speed of 1m / s, and evenly drop the anti-oxidation solution on the non-woven fabric at a speed of 7ml / min. Cloth, and then cover the copper wire with a non-woven fabric; the copper wire passes through the hydrogen-nitrogen mixed gas for 0.5s to obtain.

[0045] The anti-oxidation solution is an aqueous solution with a concentration of 0.01% after mixing anionic surfactant and isopropanol in a weight ratio of 1:1. The product of Japan Oil Research Institute (Co....

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Abstract

The invention provides an anti-oxidation processing method of a copper wire, which comprises the steps of smelting, wire drawing and annealing. The processing method provided by the invention realizes stable anti-oxidation effect and uniform lamination; the obtained copper wire has good electrical conductivity and is easy to weld and not easily oxidized; and the method can be widely applied to the processing of a copper wire.

Description

technical field [0001] The invention belongs to the field of material processing, and in particular relates to a copper wire anti-oxidation processing method. Background technique [0002] With the continuous development of human society toward electrification, automation, informatization, and networking, copper is widely used in electroplating, spraying, cables, circuit boards, Mold, stamping hardware and other industries occupy an increasing market share. [0003] The processing of copper wire mainly includes the steps of smelting, wire drawing and annealing. As we all know, copper is easy to oxidize, and often oxidized and discolored within a few hours after cleaning and drying, and oxidized slag will form after a few days. The oxidized copper wire is often difficult to weld, and its thermal conductivity and electrical conductivity are not ideal, and the price of copper is low. The processing cost is high, therefore, anti-oxidation has always been a concern of the coppe...

Claims

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Application Information

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IPC IPC(8): C22F1/08B05D7/24
Inventor 薛子夜周钢赵义东
Owner 浙江佳博科技股份有限公司
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