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Production method for copper-aluminum high-temperature compounding

A production method and high-temperature technology, applied in metal rolling and other directions, can solve the problems of difficult preparation of copper-aluminum composite materials, low peel strength, low copper layer ratio, etc., and achieve the effects of beautiful appearance, low contact resistance and good thermal conductivity.

Pending Publication Date: 2021-06-25
刘飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The liquid-solid composite method of copper-aluminum composite panels is mainly composite casting method and continuous casting-rolling method. The prepared copper-aluminum composite panels have low peel strength between copper layer and aluminum layer, and the proportion of copper layer is low (≤20 %); while the ratio of copper layer ≥ 30% copper-aluminum composite material is difficult to prepare

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this embodiment, a production method of copper-aluminum high-temperature composite is provided, comprising the following steps:

[0036] Step (1), surface cleaning

[0037] Select copper strips that meet the size requirements according to product requirements. In this embodiment, select T2 copper strips with a width of 600 mm and a thickness of 3.5 mm, degrease the copper strips in degreasing liquid, and then pickle them with 10% HCl aqueous solution to remove The oxide film and dirt on the surface of the copper strip ensure the conductivity of the copper strip. The pickling time is 10 minutes; after pickling, use a wire brush to clean the oxide skin on the copper strip to be compounded. Then the copper strip is dried, and the drying process adopts cold air drying, and the temperature of the cold air is 20°C;

[0038] The aforementioned degreasing solution includes OP emulsifier 2g / L, sodium silicate 5g / L, sodium carbonate 20g / L and sodium phosphate 10g / L; the immer...

Embodiment 2

[0048] In this embodiment, a production method of copper-aluminum high-temperature composite is provided, comprising the following steps:

[0049] Step (1), surface cleaning

[0050] In the present embodiment, a T2 copper strip with a width of 650 mm and a thickness of 3.2 mm is selected, and the copper strip is soaked in degreasing liquid to remove oil, and then pickled with 10% HCl aqueous solution, and the pickling time is 20 minutes; after pickling, it is cleaned with a wire brush For the scale on the surface of the copper strip to be compounded, the steel wire brush is first washed with alkali before use, and then the copper strip is dried; the drying treatment is dried with cold air, and the temperature of the cold air is 40°C;

[0051]The aforementioned degreasing solution includes 4g / L of OP emulsifier, 10g / L of sodium silicate, 30g / L of sodium carbonate and 30g / L of sodium phosphate; the immersion temperature in the degreasing solution is 80°C, and the soaking time is...

Embodiment 3

[0061] In this embodiment, a production method of copper-aluminum high-temperature composite is provided, comprising the following steps:

[0062] Step (1), surface cleaning

[0063] Select the copper strip that meets the size requirements according to the product requirements, soak the copper strip in the degreasing solution to remove oil, and then pickle it with 10% HCl aqueous solution for 10-20 minutes; after pickling, clean the copper strip with a wire brush and wait for compounding The oxide skin on the surface is then dried on the copper strip, and the drying treatment adopts cold air drying, and the temperature of the cold air is 20 ° C ~ 40 ° C;

[0064] The aforementioned degreasing solution includes OP emulsifier 3g / L, sodium silicate 7g / L, sodium carbonate 25g / L and sodium phosphate 15g / L; the immersion temperature in the degreasing solution is 50°C and the immersion time is 20min;

[0065] Step (2), electroplating and texturing

[0066] Put the copper strip into...

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Abstract

The invention discloses a production method for copper-aluminum high-temperature compounding. The production method comprises the following steps of (1) surface treatment of a copper strip; (2), electroplating and texturing treatment; (3) preparation of aluminum semi-solid slurry; (4) heat treatment and annealing; and (5) cold rolling. The method solves the problem that the copper-aluminum composite material is difficult to prepare due to the fact that the proportion of the copper layer obtained through an existing preparation method for copper-aluminum compounding is low, and also solves the problem that the peeling strength between the copper layer and aluminum layer of existing copper-aluminum compounding is low.

Description

technical field [0001] The invention relates to the technical field of copper-aluminum composite materials, in particular to a production method of copper-aluminum high-temperature composite. Background technique [0002] Copper-aluminum composite material is a new type of composite material, which combines the characteristics of copper and aluminum materials, and has many excellent properties such as good electrical conductivity, light weight, good corrosion resistance, and low price. At present, the most widely used copper-aluminum composite material is layered copper-aluminum composite material, and its common preparation methods include rolling method, extrusion method, and explosion method. The nature of the composite interface has a significant impact on the mechanical, electrical and processing properties of the final material. [0003] At present, the production of copper-aluminum composite panels mainly adopts the liquid-solid composite method. The liquid-solid co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/06C25D5/34C22C21/00C22C21/02B22D19/16C25D3/22C22F1/02C22F1/08C22F1/04C22F1/043B21B3/00B21B1/22
CPCB21B1/22B21B3/00B21B2001/221B21B2003/001B21B2003/005B22D19/0081B22D19/16C22C21/00C22C21/02C22F1/02C22F1/04C22F1/043C22F1/08C25D3/22C25D5/34C25D7/0614
Inventor 刘飞
Owner 刘飞
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