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Method for drawing aluminum conductor

A technology of aluminum conductors and drawing dies, which is applied in the manufacture of cables/conductors, rods/rods/wires/strip conductors, electrical components, etc., can solve the problems of increasing equipment and processes, unfavorable production costs, etc., so as to reduce the failure rate , No waste of raw materials, the effect of slow processing speed

Inactive Publication Date: 2012-04-11
ANHUI LAND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The deburring device can effectively remove the burrs on the conductor surface, but additional equipment and procedures are required in the production process, which is not conducive to saving production costs and improving production efficiency

Method used

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  • Method for drawing aluminum conductor
  • Method for drawing aluminum conductor
  • Method for drawing aluminum conductor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The circular stranded unpressed aluminum conductor (cross-sectional area 70.2mm 2 ) enter the drawing die from the drawing die entrance area 1, after passing through the die, set the compression coefficient of the drawn aluminum conductor to 0.89, turn on the drawing machine, and under the action of the drum, the aluminum conductor passes through the working area 2, sizing Zone 3 and exit zone 4 are pulled out horizontally from exit zone 4 to form a compact aluminum conductor with rounded cross-section and smooth surface (cross-sectional area 65.5mm 2 ). The material of the die used is diamond, the section of the sizing area 3 is a full circle with a diameter of 9.45 mm, and the inner surface is treated with a mirror surface.

Embodiment 2

[0037] The circular stranded unpressed aluminum conductor (cross-sectional area 24.9mm 2 ) into the drawing die from the entrance area 1 of the drawing die. The entrance area 1 is coated with lubricating oil (purchased from Houghton International Company, USA). After passing through the die, set the compression coefficient of the drawn aluminum conductor to 0.89, and turn on the drawing machine , under the action of the drum, the aluminum conductor passes through the working area 2, the sizing area 3 and the exit area 4 in turn, and is pulled out horizontally from the exit area 4 to form a compact aluminum conductor with a round cross section and a smooth surface (cut Area 24.0mm 2 ). The material of the drawing die used is cemented carbide, and the cross-section of the sizing area 3 is a full circle with a diameter of 5.53 mm. The drawing die is equipped with a steel jacket.

Embodiment 3

[0039] The circular stranded unpressed aluminum conductor (cross-sectional area 120.4mm 2 ) into the drawing die from the entrance area 1 of the drawing die, and the entrance area 1 is coated with lubricating oil (purchased from Houghton International Corporation of the United States). After passing through the die, set the compression coefficient of the drawn aluminum conductor to 0.90, and start the drawing machine , under the action of the drum, the aluminum conductor passes through the working area 2, the sizing area 3 and the exit area 4 in turn, and is pulled out horizontally from the exit area 4 to form a compact aluminum conductor with a round cross section and a smooth surface (cut Area 114.4mm 2 ). The material of the drawing die used is tungsten steel, the section of the sizing area 3 is a full circle with a diameter of 12.07mm, and the inner surface is treated with a mirror surface.

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Abstract

The invention relates to a method for drawing an aluminum conductor. In the method, a mode for compacting the aluminum conductor by the conventional voltage division pressing die is replaced by a mode for drawing a compacted aluminum conductor by a drawing die; and the method for drawing the aluminum conductor comprises the following steps that: the aluminum conductor to be drawn enters a drawing inlet area (1), then sequentially passes through a working area (2), a sizing area (3) and an outlet area (4) under the action of external force, and then is drawn out of the outlet area (4) so as to form the compacted aluminum conductor. The compacted aluminum conductor which is drawn by the method has controllable ovality and a smooth surface, and a safe, and stable medium-voltage cable conductor which has long service life can be provided for a cable core for transmitting medium-voltage current.

Description

technical field [0001] The invention relates to the field of electric wires and cables, in particular to a method for drawing an aluminum conductor. Background technique [0002] Wires and cables have the functions of transmitting electric energy, transmitting information, and realizing electromagnetic energy conversion, and deliver indispensable energy—electric energy—for production, national defense, scientific research, and daily life. Conductor is the basic material and important component of wire and cable, and the core medium for current transmission. In general, conductive materials can be used for conductors of wires and cables, such as silver, copper, gold, aluminum, etc., but due to economic and resource factors, the commonly used conductors are only copper and aluminum. Copper resistivity (≤0.01741Ω·mm 2 / m) than the resistivity of aluminum (≤0.028Ω·mm 2 / m) is low, more suitable as a conductor material, but aluminum is light in weight, good in ductility, easy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B5/02
Inventor 董吟梅张祖经高昌林
Owner ANHUI LAND GRP
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