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Layered aluminum copper composite plate and preparation method thereof

An aluminum-copper composite board and layered technology, applied in the direction of metal layered products, chemical instruments and methods, layered products, etc., can solve the problems of large specific gravity, general electrical conductivity, and high price, and achieve small specific gravity and excellent electrical conductivity characteristic effect

Inactive Publication Date: 2010-06-23
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Copper has many excellent properties, such as excellent electrical and thermal conductivity, good plastic forming ability, high strength, corrosion resistance, high temperature resistance, etc., but it has a large specific gravity and high price; aluminum has a small specific gravity, low price and good ductility , Good corrosion resistance, but general electrical conductivity

Method used

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Embodiment 1

[0023] A layered aluminum-copper composite board, with a pure copper layer on the pure aluminum base layer, the pure aluminum base layer is a pure aluminum plate L1, the thickness is 5.0mm, the size specification of the L1 board is: 500mm long × 400mm wide × 5.0mm thick, pure copper The cladding is pure red copper plate T1 with a thickness of 1.0mm. The dimensions of the T1 plate are: 550mm long x 450mm wide x 1.0mm thick.

[0024] A preparation method of layered aluminum-copper composite board, the method steps are as follows,

[0025] (1) Select pure copper plate T1 and pure aluminum plate L1 as initial blanks for explosive welding;

[0026] (2) The surface to be compounded of the pure copper plate and the pure aluminum plate is ground and cleaned by mechanical grinding;

[0027] (3) Assemble the polished pure copper plate and pure aluminum plate, and lay a 5mm thick low-density woodworking board on the 15mm thick steel plate as the foundation, with the pure aluminum plate ...

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Abstract

The invention discloses a layered aluminum copper composite plate and a preparation method thereof, which belong to the technical field of preparing composite plates. The layered aluminum copper composite plate is prepared by the preparation method comprising the following steps of: coating a pure copper layer on a pure aluminum substrate, wherein the pure aluminum substrate is a pure aluminum plate with the thickness of 5.0 to 10.0 mm, and the pure copper coating layer is a pure copper plate with the thickness of 1.0 to 2.0 mm; selecting the pure copper plate and the pure aluminum plate; polishing the surfaces to be compounded of the pure copper plate and the pure aluminum plate; assembling the well-polished pure copper plate and the pure aluminum plate, flatly spreading a prepared ammonium nitrate fuel oil explosive mixture on the upper surface of the pure copper plate, and performing explosive welding; performing annealing after the explosive welding; levelling the composite plate after the annealing; and examining the aluminum copper composite plate after levelling, and cutting out uncompounded or cracked parts on four edges of the composite plate to obtain the layered aluminum copper composite plate. Because the aluminum layer replaces part of the copper layer, compared with a copper plate with the same thickness, the aluminum copper composite plate has the characteristics of lighter specific weight and excellent electric conductivity of copper.

Description

technical field [0001] The invention belongs to the technical field of composite plate preparation, in particular to a layered aluminum-copper composite plate and a preparation method thereof. Background technique [0002] Copper has many excellent properties, such as excellent electrical and thermal conductivity, good plastic forming ability, high strength, corrosion resistance, high temperature resistance, etc., but it has a large specific gravity and high price; aluminum has a small specific gravity, low price and good ductility , Good corrosion resistance, but general electrical conductivity. [0003] How to combine the advantages of the two to prepare a layered aluminum-copper composite board has become an urgent problem in this technical field. [0004] Explosive welding is a process technology for manufacturing dissimilar metal layered composite panels, which has been widely used in the production of double or multilayer composite panels such as copper / steel, steel / s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B15/20B23K20/08B23K20/24C06B31/30C22F1/00
Inventor 马志新李德富胡捷李彦利
Owner GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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