A kind of preparation technology of copper-clad aluminum composite V-shaped wire

A preparation process, copper-clad aluminum technology, applied in the direction of cable/conductor manufacturing, electrical components, circuits, etc., can solve the problems of complex process, low bonding strength, large equipment investment, etc., and achieve high dimensional accuracy, high bonding strength, and process high efficiency effect

Active Publication Date: 2016-10-19
YANTAI FISEND BIMETAL
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Problems solved by technology

The problems of the cladding welding method and the rolling crimping method are: long production process, complicated process, high cost, thin copper layer of the product, and low bonding strength; especially for some conductor materials with special cross-sectional shapes, the two methods It is difficult to produce composite special-shaped wires with non-circular cross-sectional shapes (such as flat, special-shaped, etc.)
The hydrostatic extrusion method has the disadvantages of large equipment investment, complex process, and low production efficiency.

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  • A kind of preparation technology of copper-clad aluminum composite V-shaped wire
  • A kind of preparation technology of copper-clad aluminum composite V-shaped wire

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Embodiment Construction

[0017] For better understanding and implementation, the present invention will be further described below in conjunction with accompanying drawing:

[0018] A preparation process for a copper-clad aluminum composite V-shaped wire. First, the core aluminum and the cladding layer copper are composited into a copper-clad aluminum composite body. The blank is made by a direct composite forming method of horizontal continuous casting. The area ratio of the cladding copper layer About 30%, including the following steps:

[0019] (1) Rolling: For billets with a square section with corners, the blanking method: the size of the billet is about 44mm×44mm, rolling with a pass, the rolling speed is about 40m / min, the first three passes, in order rolling, vertical rolling, and flat rolling, with a reduction of about 30%; the middle three passes are vertical rolling, flat rolling, and vertical rolling with a deformation of about 15%; followed by flat rolling, vertical rolling, and a reducti...

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Abstract

The invention provides a preparation process of a copper-clad aluminum composite V-shaped wire, comprising the following steps: (1) Rolling: pass rolling for 11 times, rolling speed of 10-40 m / min, flat rolling, vertical rolling Cycle in sequence, the deformation of each pass is 10-40%, the total deformation of the rolled section is 70-80%, and the size is close to 20mm × 15mm; (2) Drawing: the drawing speed is controlled to 2-35 m / min, Four passes are drawn, and the cross-sectional size after the first pass is about 20mm×15mm, and the area reduction of the next three passes is controlled to 15-25%, and the total area reduction of the four passes is controlled to 40- 50%; (3) Flat rolling: one pass of flat rolling, the rolling speed is 10-40m / min, and the reduction is 1-3mm; (4), Special-shaped (V-shaped) drawing: the drawing speed is controlled to 2 ~35 m / min, the area reduction rate of a single pass is 10-20%, to the qualified size. The copper-clad aluminum composite V-shaped wire prepared by the invention has the advantages of adjustable copper layer thickness, high bonding strength, smooth surface, high dimensional accuracy, satisfactory mechanical properties and high process efficiency.

Description

technical field [0001] The invention belongs to the field of bimetallic composite materials, and in particular relates to a preparation process of a copper-clad aluminum composite V-shaped wire. Background technique [0002] At present, the main production methods of copper-clad aluminum composite wire at home and abroad include rolling crimping method, cladding welding method, hydrostatic extrusion method and so on. The problems of the cladding welding method and the rolling crimping method are: long production process, complicated process, high cost, thin copper layer of the product, and low bonding strength; especially for some conductor materials with special cross-sectional shapes, the two methods It is difficult to produce composite special-shaped wires with non-circular cross-sectional shapes (such as flat, special-shaped, etc.). The hydrostatic extrusion method has the disadvantages of large equipment investment, complex process, and low production efficiency. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00
Inventor 董晓文王连忠兰占军
Owner YANTAI FISEND BIMETAL
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