Equipment for producing cuprum-cladding-aluminium composite wire

Abstract

The invention discloses a device for preparing a copper cladding aluminum composite wire, which is characterized in that the device is provided with a horizontal hydraulic driving device (1) and a tubular fixing frame (2) which is arranged at the output shaft direction of a hydraulic cylinder and a retaining ring ((3) which is arranged at the end of the tubular fixing frame (2). The device is suitable for making large sized copper cladding aluminum wires, intensively processed copper cladding aluminum lines and other special shaped copper cladding aluminum wires. The device is simple in structure, convenient in operation, high in production efficiency and suitable for mass production.

Description

Technical field: [0001] The invention relates to a device for preparing large-size copper-clad aluminum wires, deep-processed copper-clad aluminum bars and other special-shaped copper-clad aluminum wires. Background technique: [0002] The copper clad aluminum wire is made of aluminum as the core body, and a layer of copper is coated on it, so that the copper and aluminum interface can be combined to become a composite material with a metal core. Compared with ordinary copper wire, it has exactly the same conductivity, but the weight of pure copper wire is much lighter. This can make full use of abundant and cheap aluminum and save relatively scarce copper resources. The existing copper-clad aluminum wire processing methods include: ①Aluminum wire copper plating method. Although this method is relatively simple, the composition of the copper layer is impure, the performance is relatively brittle, and the bond between the copper layer and the aluminum core is not strong. It is not...

AI Technical Summary

Problems solved by technology

The existing copper-clad aluminum wire processing methods include: ① aluminum wire copper plating method, although the process equipment of this method is relatively simple, but the composition of the copper layer is impure, the performance is relatively brittle, and the connection between the copper layer and the aluminum core is not firm, and the copper layer Difficult to concentric

②Roll crimping method, the process of this method is relatively complicated, and the investment in equipment is large, so the product cost is relatively high

③ Hydrostatic extrusion method, the process of this method is also relatively complicated, requiring a large extrusion force (2000-4000 tons), so the requirements for equipment are high, the investment is large, and the length of the wire is limited, so it cannot be produced continuously Sufficient length of wire

④Cladding welding-drawing method, this method has high requirements on the cleanliness of the blank, the total processing rate from the blank to the finished product is low and requires multiple annealing, due to the huge difference in metal mechanical properties between copper and aluminum, it is very difficult to It is easy to cause small processing rate drawing process, local peeling reduces yield and conductivity efficiency

The above methods are all suitable for the production of small-sized composite wires, and there is no special equipment for producing large-sized copper-clad aluminum wires.

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