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Preparation method of aluminum alloy cable

A kind of aluminum alloy and cable technology, applied in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problem of wire breakage and other problems, and achieve the effects of good stability, good conductivity and extensibility

Inactive Publication Date: 2018-05-04
TONGLING DONGFANG MINING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that wires are easily broken in the prior art and provide a method for preparing an aluminum alloy core cable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0009] Example 1: A method for preparing an aluminum alloy core cable, the steps of which are: (1) Melt the raw materials of each component of the aluminum alloy in a resistance furnace with gas shielding gas at a melting temperature of 800°C, and wait until the raw materials are completely melted, The refining agent is added while stirring, the refining temperature is 1000°C, and the refining time is 78 minutes; (2) It is cast by low-pressure casting method, and the liquid metal is filled into the mold under the action of low-pressure gas. The gas pressure is generally 0.6Pa. Put a sealed cover on the crucible furnace, and the center part of the cover is equipped with a liquid riser tube, which is inserted below the metal liquid level, and a Φ35mm mold is placed on the upper part of the cover, and the dry compressed air is sent into the crucible through the intake pipe, so that the metal The liquid enters the mold from the sprue through the riser tube, and the pressure is main...

Embodiment ２

[0010] Example 2: A method for preparing an aluminum alloy core cable, the steps of which are: (1) Melt the raw materials of each component of the aluminum alloy in a resistance furnace with a gas shielding gas at a melting temperature of 950°C, and wait until the raw materials are completely melted, The refining agent is added while stirring, the refining temperature is 1000°C, and the refining time is 78 minutes; (2) It is cast by low-pressure casting method, and the liquid metal is filled into the mold under the action of low-pressure gas. The gas pressure is generally 1.5Pa. Put a sealed cover on the crucible furnace, and the center part of the cover is equipped with a liquid riser tube, which is inserted below the metal liquid level, and a Φ35mm mold is placed on the upper part of the cover, and the dry compressed air is sent into the crucible through the intake pipe, so that the metal The liquid enters the mold from the sprue through the riser tube, and the pressure is ma...

Embodiment 3

[0011] Example 3: A method for preparing an aluminum alloy core cable, the steps of which are: (1) Melt the raw materials of each component of the aluminum alloy in a resistance furnace with a gas shielding gas at a melting temperature of 800°C. After all the raw materials are melted, The refining agent is added while stirring, the refining temperature is 1000°C, and the refining time is 78 minutes; (2) It is cast by low-pressure casting method, and the liquid metal is filled into the mold under the action of low-pressure gas. The gas pressure is generally 0.6Pa. Put a sealed cover on the crucible furnace, and the center part of the cover is equipped with a liquid riser tube, which is inserted below the metal liquid level, and a Φ35mm mold is placed on the upper part of the cover, and the dry compressed air is sent into the crucible through the intake pipe, so that the metal The liquid enters the mold from the sprue through the riser tube, and the pressure is maintained until t...

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Abstract

The invention discloses a preparation method of an aluminum alloy cable. The preparation method comprises the steps of (1) smelting aluminum alloy raw materials in a resistance furnace under the protection of shielding gas, wherein the smelting temperature is 800 to 950 DEG C; stirring and adding a refining agent at the same time after all of the raw materials are molten, wherein the refining temperature is 1000 DEG C, and the refining time is 78 min; (2) casting by adopting a low-pressure casting method, and filling a casting mold with liquid metal under the action of low-pressure gas, wherein the gas pressure is generally 0.6 to 1.5 Pa; additionally putting a sealing cover on a crucible furnace for melting metal, wherein a liquid lifting tube is installed in the center of the cover, theliquid lifting tube is inserted below the liquid metal surface, and a Phi-35mm casting mold is installed on the upper part of the cover; sending dry compressed air to a crucible through an air inlet tube, so that molten metal enters the casting mold from a sprue through the liquid lifting tube; keeping the pressure until the molten metal in the casting mold is completely solidified; then relievingthe pressure, so that the molten metal in the liquid lifting tube automatically returns to the crucible, thus, the mold can be opened, and the casting is pushed. The preparation method has the beneficial effects that the cable prepared by adopting the preparation method has good stability during transmission of electricity, and core materials have good conductivity and extensibility.

Description

technical field [0001] The invention relates to the field of cable material manufacturing, in particular to a method for preparing an aluminum alloy core cable. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. The development of aluminum alloy materials has formed a benign industrial chain, and the advantages of light weight will also allow more and more aluminum alloy materials to enter more industries to replace previous materials, and its development is favored in these industries. At present, the wires used in my country's transmission lines are basically still traditional steel-cored aluminum stranded wires. Due to their relatively weak heat resistance, the transmission capacity of the lines is limited to a certain extent, so good aluminum alloy core cables are needed. Promote smo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/04C22F1/04C22F1/02H01B13/00
CPCB22D18/04C22F1/02C22F1/04H01B13/00
Inventor 侯世祥
Owner TONGLING DONGFANG MINING MASCH CO LTD