Technique for producing high-strength copper covered steel conductor for coaxial cable inner core wire

Abstract

The invention relates to a high-strength copper-clad steel conductor. A production technique of a high-strength copper-clad steel conductor used for an inner core wire of a coaxial cable is characterized by comprising the following steps: rough drawing, medium temperature tempering, oxide layer removal, fine drawing, treatment before electro-deposition, acid electrolysis, washing, pretreatment of electro-deposition, washing, thick treatment of the electro-deposition, washing, oxidation protection, drying, tank wire drawing, washing, oxidation protection, drying and collecting lines and tray filling. Physical properties such as tensile strength, elongation, small reduction of area and bending times of the high-strength copper-clad steel conductor produced by the technique are enhanced.

Description

technical field [0001] The invention relates to a high-strength copper-clad steel conductor, in particular to a production process for a high-strength copper-clad steel conductor used for the inner core wire of a coaxial cable. Background technique [0002] The high-strength copper-clad steel conductor for the inner core wire of the coaxial cable is a new type of bimetal composite material made of high-quality low-carbon steel wire base material with a diameter of 6.5mm as the base material, which is electrodeposited and drawn. This product not only has the electrical conductivity and high-frequency performance of copper, but also has the toughness of steel. Compared with the traditional pure copper wire, it has the advantages of light weight, low cost, and various performance indicators are higher than or similar to pure copper wire. A good substitute for pure copper wire. It has been widely used in the field of signal transmission, such as military covered wire, CATV cable...

AI Technical Summary

Problems solved by technology

[0023] The high-strength copper-clad steel conductor used for the inner core wire of the coaxial cable manufactured by the existing production process has the following defects: 1. The internal stress of the steel wire gathered on the surface of the steel wire due to drawing is too much, and the excessive accumulation of the internal stress will cause The yield limit of the steel wire is greatly reduced, the steel wire is easy to reach the fatigue limit, the reduction rate of the steel wire is reduced, and the steel wire is easy to be brittle, which has always been a common problem in the entire high-strength copper-clad steel industry; 2. The surface of the steel wire The remaining scale due to incomplete peeling is difficult to remove even through the pickling process. The scale will cause insufficient bonding force between the steel wire and the copper layer and insufficient separation of steel and copper in high-strength copper-clad steel conductors. Reduced the yield of high-strength copper-clad steel conductors; 3, the main component used in the pretreatment electrodeposition process is that the solution of sodium cyanide is a highly toxic product, and long-term use is very serious to environmental pollution, and it is harmful to production workers. great impact on health

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