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A kind of preparation method of copper-aluminum composite transition connection material

A technology of copper-aluminum composite and transition connection, which is applied in metal rolling and other directions, can solve the problems of large waste of small-sized materials, difficulty in meeting welding requirements of copper layer, and inability to adapt to industrial production, etc., so as to improve production efficiency and good reliability , The effect of improving the production capacity of enterprises

Active Publication Date: 2019-10-25
LUOYANG TONGYI METAL MATERIAL DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The copper-aluminum composite strip produced by the above method is a wide material, and its thickness direction is sequentially compounded with a copper layer, an aluminum layer, and a copper layer (or a copper layer, an aluminum layer), and the thickness of the copper layer is difficult to meet the requirements of the copper-aluminum composite transition connection material. Welding requirements, at the same time, the preparation of small-sized materials by the above-mentioned process is wasteful and cannot be adapted to industrial production

Method used

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  • A kind of preparation method of copper-aluminum composite transition connection material
  • A kind of preparation method of copper-aluminum composite transition connection material

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Experimental program
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Effect test

Embodiment 1

[0018] The preparation method of the copper-aluminum composite transition connection material of this embodiment comprises the following steps:

[0019] 1) Slitting and cutting the finished copper-aluminum composite metal sheet with thickness (h)*width (w)*length (l)=10mm*500mm*100mm, and processing it into specifications h*w*l=10mm*12mm* 100mm semi-finished products; copper layer thickness h of copper-aluminum composite metal strip 1 1mm, aluminum layer thickness h 2 8mm;

[0020] 2) Roll the semi-finished product vertically along the plane of its thickness and length (the schematic diagram of the rolling process is shown in figure 1 shown), and then heat treated at 250°C for 5 hours to obtain a copper-aluminum composite transition connection material with h'*w'*l'=25mm*0.6mm*960mm (h', w', l' respectively correspond to copper-aluminum composite transition connection material width, thickness, length).

Embodiment 2

[0022] The preparation method of the copper-aluminum composite transition connection material of this embodiment comprises the following steps:

[0023] 1) Slitting and cutting the finished copper-aluminum composite metal sheet with thickness (h)*width (w)*length (l)=15mm*300mm*100mm, and processing it into specifications h*w*l=15mm*12mm* 100mm semi-finished products; copper layer thickness h of copper-aluminum composite metal strip 1 2.5mm, aluminum layer thickness h 2 12.5mm;

[0024] 2) Roll the semi-finished product vertically along the plane of its thickness and length (the schematic diagram of the rolling process is shown in figure 2 shown), and then heat treated at 400°C for 2 hours to obtain a copper-aluminum composite transition connection material of h'*w'*l'=50mm*0.6mm*1020mm (h', w', l' correspond to copper-aluminum composite transition connection material width, thickness, length).

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Abstract

The invention relates to a preparation method of a copper-aluminum composite transition connection material and belongs to the technical field of copper-aluminum composite metal plate strips. The preparation method comprises the steps that a copper-aluminum composite metal plate strip with the width being 10-15 mm and the thickness being 10-15 mm is erected and rolled along the thickness plane andthe length plane of the copper-aluminum composite metal plate strip; and then heat treatment is conducted at the temperature of 200-400 DEG C, and the copper-aluminum composite transition connectionmaterial is obtained. According to the preparation method, the copper-aluminum composite metal plate strip with the specification that the width*the thick is equal to (10-15 mm)*(10-15 mm) is erectedand rolled along the thickness plane and the length plane of the copper-aluminum composite metal plate strip, then heat treatment is conducted, and the copper-aluminum composite transition connectionmaterial is directly obtained; compared with an existing welding or braze welding method, on the one hand, the obtained copper-aluminum composite transition connection material is high in copper-aluminum composite strength and good in reliability; and on the other hand, through the preparation method, the production cost is greatly reduced, the production efficiency is improved, the preparation method is quite suitable for industrialized production, and the application prospects are good.

Description

technical field [0001] The invention belongs to the field of copper-aluminum composite materials, and in particular relates to a preparation method of a copper-aluminum composite transition connection material. Background technique [0002] Copper-aluminum composite transition connection material has been widely used in the high-power lithium-ion battery industry. It can withstand complex working conditions such as vibration and heat, and has good electrical conductivity and light weight. It is an excellent electrical connection material. The thickness of the copper-aluminum composite transition connection material is generally 0.5-2mm, and there are copper layer, aluminum layer, copper layer (or copper layer, aluminum layer) sequentially compounded along the width direction, the width of the copper layer is 2-10mm, and the copper-aluminum composite transition connection The thickness of the material and the width of the copper layer should be set to meet the requirements of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/38C22F1/04C22F1/08
CPCB21B1/38B21B2001/386C22F1/04C22F1/08
Inventor 符会文王项范国栋符利强周肇阳
Owner LUOYANG TONGYI METAL MATERIAL DEV