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Double-phase rolled copper-aluminum composite plate and preparation method thereof

A copper-aluminum composite plate, rolling composite technology, applied in chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of low implementation efficiency, continuity needs to be improved, etc. The effect of local defects and false recombination, improving recombination rate and recombination strength

Pending Publication Date: 2021-06-01
江苏中色复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, molten aluminum is solidified into a semi-solid state, and then anaerobic cast-rolled with a solid copper plate. Since the molten aluminum is solidified into a semi-solid state, the method and implementation efficiency of obtaining semi-solid aluminum by standing for cooling, pouring into the nozzle, and obtaining semi-solid aluminum are low. , the continuity of production needs to be improved

Method used

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preparation example Construction

[0021] The invention provides a preparation method of a dual-phase rolled copper-aluminum composite plate, comprising the following steps: performing dual-phase rolling compounding of a copper strip and aluminum liquid or aluminum alloy liquid to obtain a dual-phase rolled copper-aluminum composite plate.

[0022] The present invention has no special requirements on the composition of the copper strip, which can be selected according to actual needs. Specifically, the copper strip can be, but not limited to: common copper (T1, T2, T3), oxygen-free copper (TU1, TU2 and high-purity, vacuum oxygen-free copper), deoxidized copper (TUP, TUMn), added Special copper with a small amount of alloying elements (arsenic copper, tellurium copper, silver copper).

[0023] In the present invention, the thickness of the copper strip is preferably 0.1-5.0 mm, more preferably 0.5-4.5 mm, even more preferably 0.8-4.5 mm.

[0024] In the present invention, when the surface of the copper strip co...

Embodiment 1

[0039] A production method of dual-phase rolling copper-aluminum composite plate, adopting the following steps: performing dual-phase rolling compounding of 0.9mm thick T2 copper strip and 1100 aluminum alloy night (at a temperature of 700° C.), the casting-rolling zone is 58~ 62mm, the rolling pressure is 1700 tons, and the rolling speed is 1200mm / min, to obtain a dual-phase rolled copper-aluminum composite plate with a thickness of 8mm, and the interface shear strength is 122MPa.

Embodiment 2

[0041] A kind of production method of dual-phase rolled copper-aluminum composite plate, adopts following steps: the 3mm thick T2 copper plate belt after abrasive belt polishing is bitten into dual-phase composite rolling mill, and 1070 aluminum alloy night (temperature is 710 ℃ carries out dual-phase Rolling and compounding, the casting and rolling area is 58-68mm, the rolling pressure is 1750 tons, and the rolling speed is 800mm / min, and the dual-phase rolled copper-aluminum composite plate with a thickness of 7.5mm is obtained, and the interface shear strength is 118MPa.

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Abstract

The invention provides a double-phase rolled copper-aluminum composite plate and a preparation method thereof, and belongs to the technical field of production of composite plates. The preparation method disclosed by the invention comprises the following steps: carrying out double-phase rolling compounding on a copper plate strip and molten aluminum or molten aluminum alloy to obtain the double-phase rolled copper-aluminum composite plate. Molten aluminum or molten aluminum alloy and the copper plate strip are directly subjected to double-phase rolling compounding, compared with a semi-solid state, the liquid state can more effectively utilize the elastic-plastic deformation mechanism and energy matching relation of double metal in the copper-aluminum compounding process, the interlayer thickness and tolerance are controlled, local defects and false compounding are avoided, the compounding rate and the compounding strength are improved, and relatively high peel strength is obtained. The molten aluminum or the molten aluminum alloy does not need to be solidified into a semi-solid state, the molten aluminum or the molten aluminum alloy and the copper plate strip are directly subjected to double-phase rolling compounding, and continuous production can be achieved. The copper plate strip does not need to be preheated in advance before double-phase rolling compounding, and copper plate strip oxidation caused by heating is avoided.

Description

technical field [0001] The invention relates to the technical field of composite plate production, in particular to a two-phase rolled copper-aluminum composite plate and a preparation method thereof. Background technique [0002] Copper and aluminum are important non-ferrous metals, widely used in industrial, civil and other fields. Copper has good electrical and thermal conductivity, corrosion resistance, and antibacterial properties; aluminum has good electrical and thermal conductivity. The copper-aluminum composite board obtained by compounding copper and aluminum integrates the conductivity and shielding performance of copper, as well as the low density and large specific heat capacity of aluminum. [0003] At present, the production of copper-aluminum composite panels mainly adopts the solid-solid composite method. The copper-aluminum composite panels produced by the solid-solid composite method are limited by the processing conditions, and the interface bonding str...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B15/20B22D11/06B22D19/16
CPCB32B15/017B22D11/0611B22D19/16
Inventor 尚郑平李华清周元庆
Owner 江苏中色复合材料有限公司
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