Copper product machining method

A processing method and technology of copper products, applied in the field of copper product processing, can solve the problems of dimensional deformation, economic loss, waste of copper processing enterprises, etc., and achieve the effects of good mechanical properties, reduction of product cost, and improvement of product quality

Inactive Publication Date: 2020-10-16
湖南天惠新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since copper products are often found to be deformed in size during the subsequent processing and production process, the amount of repairs is large, and the scrap rate increases. These problems seriously affect product quality and production costs, causing unnecessary waste and economic losses to copper processing enterprises.

Method used

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  • Copper product machining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for processing copper products, comprising the steps of:

[0028] S1. Casting:

[0029] a. Polish the oxide film on the surface of the copper ingot, and place it in a beaker filled with absolute alcohol to prevent it from oxidizing;

[0030] b. Stack the copper ingots in the water-cooled copper mold crucible, cover the furnace cover, and vacuumize twice to 5.0×10 before the formal melting -3 Pa, and filled with high-purity Ar gas to dilute residual oxygen;

[0031] c. After two times of vacuuming, fill it with high-purity Ar gas of 0.5 atmospheres to dilute the residual oxygen in the furnace;

[0032] d. Turn on the magnetic stirring for smelting, the smelting time is 2 minutes, turn over the smelted copper repeatedly to continue smelting, the number of smelting times is greater than or equal to 5;

[0033] e. Casting the copper liquid in the molten state into a copper column through a crystallizer;

[0034] S2. Preparation of thin strips: place the copper ...

Embodiment 2

[0038] A method for processing copper products, comprising the steps of:

[0039] S1. Casting:

[0040] a. Polish the oxide film on the surface of the copper ingot, and place it in a beaker filled with absolute alcohol to prevent it from oxidizing;

[0041] b. Stack the copper ingots in the water-cooled copper mold crucible, cover the furnace cover, and vacuumize twice to 5.0×10 before the formal melting -3 Pa, and filled with high-purity Ar gas to dilute residual oxygen;

[0042] c. After two times of vacuuming, fill it with high-purity Ar gas of 0.5 atmospheres to dilute the residual oxygen in the furnace;

[0043] d. Turn on the magnetic stirring for smelting. The smelting time is 3 minutes. Turn over the smelted copper repeatedly to continue smelting. The number of smelting times is greater than or equal to 5;

[0044] e. Casting the copper liquid in the molten state into a copper column through a crystallizer;

[0045] S2. Preparation of thin strips: place the copper ...

Embodiment 3

[0049] A method for processing copper products, comprising the steps of:

[0050] S1. Casting:

[0051] a. Polish the oxide film on the surface of the copper ingot, and place it in a beaker filled with absolute alcohol to prevent it from oxidizing;

[0052] b. Stack the copper ingots in the water-cooled copper mold crucible, cover the furnace cover, and vacuumize twice to 5.0×10 before the formal melting -3 Pa, and filled with high-purity Ar gas to dilute residual oxygen;

[0053] c. After two times of vacuuming, fill it with high-purity Ar gas of 0.5 atmospheres to dilute the residual oxygen in the furnace;

[0054] d. Turn on the magnetic stirring for smelting, the smelting time is 2.5min, turn over the smelted copper repeatedly to continue smelting, the number of smelting times is greater than or equal to 5;

[0055] e. Casting the copper liquid in the molten state into a copper column through a crystallizer;

[0056] S2. Preparation of thin strips: place the copper col...

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Abstract

The invention provides a copper product machining method. The method comprises the following steps of S1, casting, wherein oxidation film on the surface of a copper ingot is thoroughly polished, and stacked in a water-cooling copper mold crucible, vacuumizing is conducted twice, then the crucible is filled with high-purity Ar gas, and is then opened for magnetic stirring and repeated turnover smelting, and then copper liquid in a molten state is cast into a copper cylinder; S2, preparation of a thin belt, wherein the copper cylinder is put in a high-vacuum medium-frequency induction furnace for remelting, and is then sprayed on a high-speed copper roller die under the protection condition of high-purity argon to be prepared into the thin belt; S3, hot extrusion of the thin belt, wherein the thin belt is heated through line-frequency induction, and then is extruded by an extrusion die into a pipe via an oil press; S4, the subsequent process, wherein the copper pipe is saw-cut, is then subjected to high-temperature annealing, and then continues to be heated, and afterwards, heat preservation and low temperature annealing are conducted to prepare a copper product. The copper product machining process is simple in technique, and the prepared copper product has excellent mechanical performance and fine grain size.

Description

technical field [0001] The invention relates to the technical field of copper processing, in particular to a copper product processing method. Background technique [0002] In recent years, the price of copper has soared, which has had a great impact on copper processing enterprises. Reducing the cost of copper processing is an important issue faced by copper processing enterprises. Since copper products are often found to have dimensional deformation, a large amount of repairs, and an increase in scrap rate in the subsequent processing and production process, these problems seriously affect product quality and production costs, causing unnecessary waste and economic losses to copper processing enterprises. Therefore, formulating a reasonable processing route is particularly important for copper processing enterprises to reduce production costs and improve their core competitiveness. Contents of the invention [0003] The object of the invention is to propose a high-perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02B22D11/06C22F1/08
CPCB22D11/0602B22D11/0697C22C1/02C22F1/08
Inventor 曾辉
Owner 湖南天惠新材料科技有限公司
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