Preparation method of copper-clad long carbon fiber composite conductor wire

A long carbon fiber and composite conductor technology is applied in the field of short process preparation of pure copper clad long carbon fiber composite conductor wire, which can solve problems such as low strength, achieve the effect of short process, improve production efficiency and yield, and improve production efficiency

Inactive Publication Date: 2016-12-07
GUANGDONG INST OF MATERIALS & PROCESSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to solve the problem of low strength of copper-clad aluminum and other metal composite conductors, the development of advanced preparation technology for copper-clad long carbon fiber composite conductors is of great significance to further promote the rapid development and wide application of metal composite conductors.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A copper-clad long carbon fiber composite conductor wire with a diameter of 5.0 mm was prepared.

[0019] 1) One end of the long carbon fiber bundle with a core of 4.0 mm is fixed on the lead rod through the center of the mold hole of the heating mold, and the other end is wound in the vacuum furnace on the upper part of the crucible, so that the heating mold, the induction coil and the lead rod are aligned;

[0020] 2) Smelting pure copper in a vacuum furnace, the temperature of the copper metal liquid is 1180°C, and the vacuum degree is 0.1Pa;

[0021] 3) Fill the vacuum furnace with argon protective gas to balance the gas pressure inside and outside the furnace;

[0022] 4) At a cooling water flow rate of 1500L / h and a cooling water temperature of 20°C, a copper-clad long carbon fiber composite conductor rod blank with a diameter of 12.0mm was prepared at a casting speed of 50mm / min;

[0023] 5) The copper-clad long carbon fiber composite conductor billet was pulled...

Embodiment 2

[0025] A copper-clad long carbon fiber composite conductor wire with a diameter of 4.0 mm was prepared.

[0026] 1) One end of the long carbon fiber bundle with a core of 3.0mm is fixed on the lead rod through the center of the mold hole of the heating mold, and the other end is wound in the vacuum furnace on the upper part of the crucible, so that the heating mold, the induction coil and the lead rod are aligned;

[0027] 2) Smelting pure copper in a vacuum furnace, the temperature of the copper metal liquid is 1150°C, and the vacuum degree is 0.5Pa;

[0028] 3) Fill the vacuum furnace with argon protective gas to balance the gas pressure inside and outside the furnace;

[0029] 4) When the cooling water flow rate is 1000L / h, the cooling water temperature is 30°C, and the casting speed is 100mm / min, a copper-clad long carbon fiber composite conductor rod blank with a diameter of 10.0mm is prepared;

[0030] 5) The copper-clad long carbon fiber composite conductor billet was ...

Embodiment 3

[0032] A copper-clad long carbon fiber composite conductor wire with a diameter of 3.0 mm was prepared.

[0033] 1) One end of the long carbon fiber bundle with a core of 2.0mm is fixed on the lead rod through the center of the mold hole of the heating mold, and the other end is wound in the vacuum furnace on the upper part of the crucible, so that the heating mold, the induction coil and the lead rod are aligned;

[0034] 2) Smelting pure copper in a vacuum furnace, the temperature of the copper metal liquid is 1120°C, and the vacuum degree is 0.2Pa;

[0035] 3) Fill the vacuum furnace with argon protective gas to balance the gas pressure inside and outside the furnace;

[0036] 4) When the cooling water flow rate is 500L / h, the cooling water temperature is 20°C, and the casting speed is 150mm / min, a copper-clad long carbon fiber composite conductor rod blank with a diameter of 8.0mm is prepared;

[0037] 5) The copper-clad long carbon fiber composite conductor billet was pu...

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Abstract

The invention relates to a preparation method of a copper-clad long carbon fiber composite conductor wire. The preparation method is characterized by comprising the following steps of fixing one end of long carbon fiber to a leading rod through the center of a heating casting mold hole, and winding the other end of the long carbon fiber into a vacuum furnace on the upper part of a crucible, so that a heating casting mold, an induction coil and the leading rod are centered; smelting pure copper under the vacuum degree less than 1 Pa and at the temperature of 1100 to 1200 DEG C; filling argon in the furnace, so that internal and external pressure of the furnace is balanced; preparing a copper-clad long carbon fiber composite conductor rod billet of which the diameter is 8.0 to 12.0 mm at the cooling water flow of 500 to 1500 L / h, the cooling water temperature of 20 to 30 DEG C and the casting speed of 50 to 150 mm / min; and drawing the copper-clad long carbon fiber composite conductor rod billet at room temperature for 2 to 6 passes so as to form the copper-clad long carbon fiber composite conductor wire. The preparation method has the advantages of short flow and high efficiency, and the copper-clad long carbon fiber composite conductor wire with a bright surface and stable quality can be directly produced.

Description

technical field [0001] The invention relates to the technical field of composite wire preparation, in particular to a short-process preparation method of pure copper-clad long carbon fiber composite conductor wire. Background technique [0002] The copper-clad aluminum composite conductor wire prepared by thin-walled copper tubes has the remarkable characteristics of light weight and low cost. It can obtain the same transmission performance as pure copper conductors when used for current transmission, and has great development in the fields of electric power, electrical appliances, and communications. prospects and application potential. However, since the tensile strength of pure aluminum is lower than that of pure copper, the tensile strength of copper-clad aluminum composite conductors is lower than that of pure copper conductors. Its further development and application. [0003] Long carbon fiber has a series of advantages such as high strength (tensile strength is abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/14B22D27/04
CPCB22D19/14B22D27/045
Inventor 郑开宏甘春雷王顺成黎小辉周楠徐静
Owner GUANGDONG INST OF MATERIALS & PROCESSING
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