Continuous casting and continuous extrusion device and process of large-plasticity equal channel right-angle copper-steel composite contact wire

Abstract

The invention provides a continuous casting and continuous extrusion device and process of a large-plasticity equal channel right-angle copper-steel composite contact wire. The device is characterizedin that a steel mold, a copper mold, a right-angle extrusion device, cooling circulating systems and coils are included; and a steel mold pipeline is placed in a copper mold pipeline and located above the circle center of the copper mold pipeline, and the steel mold pipeline and the copper mold pipeline are not on the same circle center. According to the device and process, through cooperative use of a large mold and a small mold, process production of the copper-steel composite contact wire is achieved; the problem that electric conductivity and tensile strength are in mutual contradiction and sacrifice each other are broken through; the problem that a coating layer and a steel core are separated from each other due to the reason that expansion factors are not matched is solved; and production process innovation and tool device self-dependent innovation are achieved.

Description

technical field [0001] The invention relates to a large plastic equal channel right angle copper-steel composite contact wire continuous casting continuous extrusion equipment and its technology. Background technique [0002] With the development of electronic information technology, the requirements for the comprehensive performance of copper alloy conductive materials are getting higher and higher. It is required to maintain high electrical conductivity and thermal conductivity while maintaining high strength (hardness), toughness, and wear resistance. Sex, cold resistance, non-ferromagnetic and other characteristics. These excellent properties make copper alloys gradually become important metal materials used in high-tech fields such as electric power, information, transportation, energy, light industry and aerospace. In many occasions, it is rarely used in the form of pure copper. This is because the strength of pure copper is low (230-300 MPa). Although it can reach 40...

AI Technical Summary

Problems solved by technology

[0007] However, the traditional contact wire production method has a long production cycle. Because it is cast in one furnace, the length, weight and shape are limited, and the vacuum production cost is high and the output is small. It is difficult to establish a continuous industrial production scale.

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