A kind of preparation method of aluminum clad carbon fiber wire

A technology of aluminum-coated carbon fiber and carbon fiber, which is applied in the field of preparation of aluminum-coated carbon fiber conductors, can solve problems such as lack of research, and achieve the effect of solving many production processes and broad application prospects.

Active Publication Date: 2017-09-12
GUANGDONG INST OF NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Continuous casting extrusion overmolding technology has been successfully applied to the production of aluminum-clad steel wire, but the application of this technology to aluminum-clad carbon fiber wire has not been studied

Method used

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Examples

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Effect test

preparation example Construction

[0017] The preparation method of the aluminum-clad carbon fiber wire of the present invention includes smelting aluminum alloy liquid, wire releasing and continuous casting extrusion coating molding, and the equipment used therein includes a tension wire releasing device, a traction coiling device and a continuous casting extrusion coating machine. And the specific operation steps of this method are as follows:

[0018] The first step: heat and melt the aluminum alloy ingot at 740-780°C, then refine the aluminum alloy liquid with a refining agent, remove the slag and then keep it warm for 10-30 minutes, and then control the temperature of the aluminum alloy liquid at 680-720°C ;

[0019] Step 2: Use a tension pay-off device to pay off the carbon fiber core wire with a diameter of 0.1 to 1 mm. end, the traction end of the traction coiling device and the center of the die hole of the covering mold are on the same straight line, and the carbon fiber core wire between the tension...

Embodiment 1

[0027] Adopt the method of the present invention to prepare the aluminum-clad carbon fiber wire of diameter 1 millimeter, the steps are as follows:

[0028]The first step: heat and melt the 1Al97 aluminum alloy ingot at 740°C, then refine the 1Al97 aluminum alloy liquid with a mixed refining agent of potassium chloride and sodium chloride, remove the slag and then keep it warm for 10 minutes, and then put the 1Al97 aluminum alloy liquid The temperature is controlled at 680°C;

[0029] Step 2: Use a tension pay-off device to pay off the carbon fiber core wire with a diameter of 0.1 mm. The traction end of the traction coiling device is on the same straight line as the center of the die hole of the covering mold, and the carbon fiber core wire between the tension unwinding device and the traction coiling device forms a tension of 1 kN;

[0030] Step 3: Start the continuous casting extrusion coating machine, adjust the rotation speed of the casting extrusion wheel to 10 m / min, t...

Embodiment 2

[0033] Adopt the method of the present invention to prepare the aluminum clad carbon fiber wire of diameter 5 millimeters, step is as follows:

[0034] The first step: heat and melt the 1050 aluminum alloy ingot at 760°C, then refine the 1050 aluminum alloy liquid with a mixed refining agent of potassium chloride and sodium chloride, remove the slag and then keep it warm for 20 minutes, and then put the 1050 aluminum alloy liquid The temperature is controlled at 700°C;

[0035] Step 2: Use a tension pay-off device to pay off the carbon fiber core wire with a diameter of 1 mm. The traction end of the traction take-up device is on the same straight line as the center of the die hole of the overmold, and the carbon fiber core wire between the tension pay-off device and the traction take-up device forms a tension of 3 kN;

[0036] Step 3: Start the continuous casting extrusion coating machine, adjust the rotation speed of the casting extrusion wheel to 8 m / min, then transfer the ...

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Abstract

The invention provides a preparation method of an aluminum-clad carbon fiber wire. The method comprises the steps as follows: firstly, an aluminum alloy ingot is smelted to produce the aluminum alloy liquid; a carbon fiber core wire is paid off by a tension pay-off device; the carbon fiber core wire passes through a die hole of a coating die of a continuous casting-extrusion coating machine and then is connected with a traction winding device, so that a pay-off end of the tension pay-off device, a traction end of the traction winding device and the die hole center of the coating die are located on a same straight line; tension of 1,000-3,000N is formed on the carbon fiber core wire between the tension pay-off device and the traction winding device; finally the continuous cast extrusion coating machine is started and the aluminum alloy liquid is casted into a cavity formed by a casting and extrusion wheel and a groove sealing block; water is introduced for cooling, so that the temperature of the aluminum alloy in the coating die is 510-550 DEG C; and the aluminum-clad carbon fiber wire which is 1-5mm in diameter is formed by continuous cast extrusion coating. Continuous cast extrusion coating forming of the aluminum-clad carbon fiber wire is achieved for the first time; the problem of easily caused decentration of the carbon fiber core wire in the wire is solved; and the preparation method has the advantages of few production procedures and short technological process.

Description

technical field [0001] The invention belongs to the technical field of wire manufacture, and in particular relates to a preparation method of an aluminum-clad carbon fiber wire. Background technique [0002] my country's long-distance and large-span overhead transmission wires currently mainly use steel-cored aluminum stranded wires or aluminum-clad steel wires. This kind of steel-core-reinforced aluminum wire still has heavy weight, low strength, large power loss, and linear expansion in practical applications. Large coefficient, no corrosion resistance, no high temperature resistance and other shortcomings. With the construction needs of long-distance and large-span overhead transmission lines in my country, it is urgent to develop new types of overhead transmission lines with higher strength and better conductivity. [0003] Carbon fiber has the advantages of high strength, low density, high modulus, small linear expansion coefficient, corrosion resistance, no creep, high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00
CPCH01B13/00
Inventor 郑开宏王顺成甘春雷黎小辉
Owner GUANGDONG INST OF NEW MATERIALS
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