Forming device and method for metal-cladding wire

Abstract

The invention discloses a forming device and method for a metal-cladding wire. The device comprises a main unit, a pay-off unit and a pulling unit. The main unit comprises a rack, two working rollers horizontally arranged side by side and rotatably arranged on the rack, a crystallizer located in the position, in the middle of the upper portion, of the space between the two working rollers, a tundish arranged on the crystallizer, a die holder arranged in the position, in the middle of the lower portion, of the space between the two working rollers, and an extrusion die arranged on the die holder. The structures that two crystallizing cavities are arranged between two cambered surfaces of the crystallizer and roller grooves of the two working rollers and the center of the tundish, the center of the crystallizer and the center of the die holder are each provided with a channel allowing a core wire to penetrate through are adopted, cladding layer molten metal is continuously cooled and solidified into two metal flows with the same volume through the two crystallizing cavities, and the core wire is cladded when the two metal flows converge then extruded out of a die hole to obtain the metal-cladding wire, so that the forming device and method for producing the metal-cladding wire have the advantages of being short in technique process, high in product quality, high in adaptability and the like.

Description

technical field [0001] The invention belongs to the technical field of metal-clad wire manufacture, and in particular relates to a forming device and method for metal-clad wire. Background technique [0002] The structural feature of metal-clad wire is that one material is used as the core wire, and the outside is covered with another metal. At present, the metal-clad wires that have been developed include copper-clad aluminum wire, copper-clad steel wire, aluminum-clad steel wire, aluminum-clad carbon fiber wire, etc. These metal-clad wires combine the characteristics of the two materials, so they have good comprehensive physical and mechanical properties, and have broad application prospects in the fields of electric power, transportation, communications, and electronic appliances. [0003] Aluminum-clad steel wire was originally produced mainly by aluminum powder rolling method and aluminum strip pressing method. These methods cannot meet the requirements of large-scale ...

AI Technical Summary

Problems solved by technology

Since this method uses solid metal wires as the coating material, it is necessary to prepare solid metal wires by other methods first, and then perform continuous extrusion coating molding after surface treatment and preheating, which increases the production process.

In addition, due to the need to feed two coated metal wires at the same time, if the sizes of the two metal wires are not exactly the same or the feeding speed is different, the core wire will be eccentric, and it is difficult to obtain a concentric and coaxial coated wire

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