A production method for copper-coated aluminum material

A technology of copper-clad aluminum strips and production methods, which is applied in the manufacture of electrical components, circuits, cables/conductors, etc., can solve the problems of difficult technical research, huge differences in melting points, and inability to achieve permanent metallurgical bonding of copper and aluminum. The effect of mutual diffusion and prevention of high temperature oxidation

Inactive Publication Date: 2008-02-13
丹阳市中信化工电器设备有限公司
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  • Summary
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AI Technical Summary

Benefits of technology

This technology helps remove impurities from the surfaces of alloys made up of both materials without affecting their properties or causing damage they would otherwise have happened when drawn together. By applying an acidic cleaner containing water onto these areas after it has been pulled out, we get ridges where there may still remain some small bumps left over due to insufficient coolant flow caused by poor air circulating inside the system. These tiny bumpings help create strong connections between them.

Problems solved by technology

Technological Problem addressed by this patented study relates to improving the efficiency and quality of producing copper/clad alloys with improved properties such as higher electric conduction rates or lower resistivity values compared to traditional techniques like casting and extrusion processes.

Method used

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Embodiment Construction

[0020] The production method of the present embodiment is made according to the following procedures:

[0021] 1) Cleaning: First, electrolytic copper and aluminum are made into copper pipes and aluminum bars of corresponding specifications according to various specifications and models, and then enter the cleaning pool respectively for surface oxide layer and oil stain treatment. The copper pipes are cleaned with 702 or 7011 metal Add warm water to cleaning agent, the ratio is 1:15, the temperature of warm water is controlled at about 40°C, and the time is preferably 15 minutes; the aluminum rod is cleaned with lime soda solution, and the lye is mixed with water and sodium lauryl sulfate is added. 2:15:1, after cleaning, put it into the oven for drying, the oven temperature is controlled at 200°C, and the time is 30 minutes.

[0022] 2) Drying: After cleaning, dry the copper pipes and aluminum rows in an oven; the temperature of the oven is controlled between 200°C and 250°C ...

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Abstract

The invention discloses a producing method for copper coated aluminum row profile, and the method comprises following steps in turn: 1) cleaning, 2) drying, 3) head rolling, 4) clearance drawing, 5) bimetal combining furnace heating, 6) high frequency induction heating, 7) hot drawing, 8) heat preserving, 9) oxide layer washing and 10) packing. Beneficial effects of the invention are: the metal is not oxidized during drawing. The high frequency induction skin effect enables two kinds of metal with significantly different melting points reaching the critical point of composite metal metallurgy integrating temperature simultaneously, so a permanent compact metallurgical combining is realized between the two kinds of metals. The density of the profile in the invention is only 36.5% to 41.6% of that of pure copper rows, the length of the profile is 2.45 to 2.70 times of that of pure copper rows, the tensile strength of the profile is over 1.6 to 2 times of that of pure copper rows, and the specific resistance is between 0.027310 ohm question mark mm2/m(-40 Celsius system) and 0.041506 ohm question mark mm2/m(70 Celsius system).

Description

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Claims

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Application Information

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Owner 丹阳市中信化工电器设备有限公司
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