Production method of high-strength copper rods for catenary cables of electrified railways

Abstract

The invention belongs to the field of production processes of copper rods, and particularly relates to a method for producing a high-strength copper rod for electric railway contact net catenary wires. The method comprises the following steps: pre-heating and drying electrolytic copper in a smelting device by using the electrolytic copper with purity of 99.957 percent or above as a raw material sothat the electrolytic copper is melted, wherein the smelting device comprises a smelting furnace and a heat insulation furnace; a partition bin is arranged between the smelting furnace and the heat insulation furnace; the surface of copper liquid is coated with wood carbon and graphite flakes so that an oxygen isolation state during melting is ensured; through on-line gas removal, deoxidation andstirring, filtration is carried out through a ceramic crystallizer; and the copper rod is drawn up by adopting a traction unit in processes of drawing-up, back-pushing and stopping. The invention aims to overcome the defect of lower strength of the copper rod for the electric railway contact net catenary wires produced in the prior art and provides a production method of the high-strength copperrod for the electric railway contact net catenary wires.

Description

technical field [0001] The invention belongs to the field of copper rod production technology, and more specifically relates to a production method of high-strength copper rods for catenary cables of electrified railways. Background technique [0002] Copper wire rods are necessary blanks for the production of copper wires such as wires and cables, enameled wires, and electronic wires, and copper wires are one of the important basic materials for industries such as electronics, electricity, and communications. With the development of electronic telecommunications in the world, the demand for copper wire rods in the wire and cable, enameled wire and electronic wire industries is also increasing rapidly, which drives the increasing demand for copper wire rods and the higher quality requirements. [0003] At present, with the rapid development of domestic electrified railways, the demand for related supporting equipment, components and materials has shown explosive growth. Con...

AI Technical Summary

Problems solved by technology

[0004] However, the copper rods used in the catenary cables of electrified railways produced in the prior art often have the disadvantage of low strength, so how to produce high-strength copper rods for catenary cables of electrified railways is a need in the prior art. Technical issues resolved