Preparation method of copper covered steel woven wire special for communication cable shielding layer

A communication cable and copper-clad steel technology, which is applied in cable/conductor manufacturing, metal extrusion cleaning equipment, circuits, etc., can solve the problems of high tensile strength, low-cost copper-clad steel thin wires, and low elongation, and achieve Good flexibility, not easy to break, low tensile strength effect

Inactive Publication Date: 2007-02-14
仲庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Copper-clad steel wire is composed of a steel core wire and a copper layer tightly covering it. It has both the electrical conductivity of copper and the tensile strength of steel. When used as a wire, it can save a lot of copper, but the existing Copper-clad steel thin wires are not suitable for braiding communication cable shielding due to their high tensile strength and low elongation, because copper-clad steel thin wires with high tensile strength and low elongation will frequently break during weaving, Unable to produce cable shield normally
Since the preparation method of copper-clad steel thin wires that further reduces the tensile strength and increases the elongation has not been mastered, until now, low-cost copper-clad steel thin wires that meet the requirements of the braided communication cable shielding layer have not been produced.

Method used

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Embodiment Construction

[0016] 1. Rough drawing: the high-quality low-carbon steel wire with a diameter of 5.5-6.5mm is first removed from the oxide layer (commonly known as peeling) process, and then the wire is stretched to a diameter of 2.5-3.5mm with a large wire drawing machine, and then pickled , alkali neutralization, and cleaning processes, and then perform the first heat treatment, put the pulled coil wire into a well-type annealing furnace and heat it to 700-780 degrees Celsius, and keep the temperature constant for 6-10 hours (depending on the outdoor temperature). Then cool with the furnace for about 12 hours. After the wire is out of the furnace, the wire is drawn to a diameter of 1.0-2.0mm (according to the length of the subsequent copper plating machine and the size of the current) with a water tank wire drawing machine, and wound into an iron plate with a diameter of 400mm (about 80 kg per plate). Carry out the second annealing together with the iron plate. The annealing must use a we...

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Abstract

This invention relates to a preparation method for special steel woven filaments for communication cable shield layers including rough drawing, plating, mid-drawing, fine-drawing and annealing of copper-wrapped steel filaments with the mechanical performance approaching to copper wires, the extension rate of which reaches to 20% and the tensile strength reaches to that of copper wires, so it will not be broken when used in weaving cable shield layers and the product will not be hard and keep fine flexibility.

Description

technical field [0001] The invention relates to a copper-clad steel conductor, in particular to a preparation method capable of producing qualified copper-clad steel conductors suitable for use in cable shielding layers. Background technique [0002] Copper-clad steel wire is composed of a steel core wire and a copper layer tightly covering it. It has both the electrical conductivity of copper and the tensile strength of steel. When used as a wire, it can save a lot of copper, but the existing Copper-clad steel thin wires are not suitable for braiding communication cable shielding due to their high tensile strength and low elongation, because copper-clad steel thin wires with high tensile strength and low elongation will frequently break during weaving, The cable shield cannot be produced normally. Since the preparation method of copper-clad steel thin wires that further reduces tensile strength and increases elongation has not been mastered, until now, low-cost copper-clad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B5/02B21C1/00B21C43/00C25D3/38
Inventor 仲庆
Owner 仲庆
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