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

A coaxial cable and production process technology, applied in the field of high-strength copper-clad steel conductors, can solve problems such as the great impact on the health of production workers, reduce the surface reduction rate of steel wires, and the brittleness of steel wires, so as to achieve the health protection of production workers, The effect of solving insufficient bonding force and improving tensile strength

Active Publication Date: 2008-11-12
ZHEJIANG PUJIANG BAICHUAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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....

Method used

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

Examples

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Embodiment 1

[0048]A production process for high-strength copper-clad steel conductors for inner core wires of coaxial cables consists of the following steps:

[0049] (1) Rough drawing, ①Put the steel wire base material with a diameter of 6.5mm in the process of shelling and removing the oxide layer; ②Put the steel wire after removing the oxide layer into a high-speed continuous wire drawing machine and draw it to 3.4mm;

[0050] (2) Tempering at medium temperature. Put the roughly drawn steel wire into a vacuum tempering furnace for medium temperature heat treatment. The temperature of the furnace body is 400° C., the heating time is 2.5 hours, and the holding time is 5 hours.

[0051] (3) In addition to the oxide layer, ① pickle the heat-treated steel wire with industrial hydrochloric acid to remove the scale formed on the surface of the steel wire due to heat treatment, ② rinse the pickled steel wire with clean water to basically remove the acid on the surface of the steel wire. ③ Coat...

Embodiment 2

[0068] A production process for a high-strength copper-clad steel conductor used for the inner core wire of a coaxial cable. In the step (2) medium-temperature tempering process, the rough-drawn steel wire is put into a vacuum tempering furnace for medium-temperature heat treatment. The temperature is 550°C, the heating time is 2 hours, and the holding time is 3 hours. Other steps are the same as in Example 1.

Embodiment 3

[0070] A production process for a high-strength copper-clad steel conductor used for the inner core wire of a coaxial cable. In the step (2) medium-temperature tempering process, the rough-drawn steel wire is put into a vacuum tempering furnace for medium-temperature heat treatment. 500°C, the heating time is 2 hours, and the holding time is 4 hours. Other steps are the same as in Example 1.

[0071] As shown in the above three embodiments, this process adds a medium temperature tempering process after the rough drawing process, and the tempering temperature is controlled between 400-550 °C. When the tempering temperature is too high, the martensite inside the steel wire will completely transform. If the tempering temperature is too low, the internal stress cannot be completely eliminated, and the problem of brittle fracture cannot be eliminated. The operating temperature of the anti-oxidation process in the above steps (12) and (16) is controlled between 40-60°C. The main co...

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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...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B1/02
Inventor 张荣良
Owner ZHEJIANG PUJIANG BAICHUAN IND
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