Production method of aluminum alloy core cable

An aluminum alloy and cable technology, which is applied in the direction of cable/conductor manufacturing, insulated cables, power cables, etc., can solve problems such as potential safety hazards, low conductivity of wires, and high prices, and achieves extended service life, easy preparation process, and low production costs. low effect

Inactive Publication Date: 2014-11-12
广州市凯博电线电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, various power cables mostly use copper core material, which is expensive
If the aluminum core material is used, because the yield strength of the aluminum core material is low and the creep value is large, a large creep value will occur after long-term use, which will cause a great safety hazard
[0003] For power cables, especially those installed in roads and bridges, culverts, underground works and various buildings, the conductors must have excellent mechanical properties, but aluminum alloy conductors with such characteristics often have low conductivity and low heat resistance. (including high temperature creep properties) are poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing an aluminum alloy core cable:

[0032] The cable includes an aluminum alloy core material, a nickel alloy layer outside the core material, and the outermost layer is an insulating layer,

[0033] The mass percentage content of each component of the aluminum alloy core material is: Cu 1%, Mg 0.6%, Ti 0.5%, Ni 0.4%, Bi 0.4%, Cr 0.2%, Co 0.08%, Au 0.05%, Zn 0.04%, Pr 0.04%, Nb 0.02%, the balance is aluminum and inevitable non-metallic inclusions,

[0034] Preparation method of the cable:

[0035] (1) Put each component raw material into the smelting furnace and smelt at 780-790℃. After all the raw materials are melted, stir for 40min; then add the refining agent for refining, the refining temperature is 710℃, the refining time is 30min, After the slag, let it stand for 50 minutes, then adjust the temperature to 700℃, and pass the 40% Ar and 60% CO mixed gas in the molten aluminum for 30 minutes for degassing and refining. The gas flow rate is 3m. 3 / Min, l...

Embodiment 2

[0047] A method for preparing an aluminum alloy core cable:

[0048] The cable includes an aluminum alloy core material, a nickel alloy layer outside the core material, and the outermost layer is an insulating layer,

[0049] The mass percentage content of each component of the aluminum alloy core material is: Cu 2%, Mg 0.7%, Ti 0.6%, Ni 0.5%, Bi 0.5%, Cr 0.3%, Co 0.09%, Au 0.06%, Zn 0.05%, Pr 0.05%, Nb 0.03%, the balance is aluminum and inevitable non-metallic inclusions,

[0050] Preparation method of the cable:

[0051] (1) Put each component raw material into the smelting furnace and smelt at 780-790℃. After all the raw materials are melted, stir for 40min; then add the refining agent for refining, the refining temperature is 710℃, the refining time is 30min, After the slag, let it stand for 50 minutes, then adjust the temperature to 700℃, and pass the 40% Ar and 60% CO mixed gas in the molten aluminum for 30 minutes for degassing and refining. The gas flow rate is 3m. 3 / Min, l...

Embodiment 3

[0063] A method for preparing an aluminum alloy core cable:

[0064] The cable includes an aluminum alloy core material, a nickel alloy layer outside the core material, and the outermost layer is an insulating layer,

[0065] The mass percentage content of each component of the aluminum alloy core material is: Cu 1.5%, Mg 0.65%, Ti 0.55%, Ni 0.45%, Bi 0.45%, Cr 0.25%, Co 0.085%, Au 0.055%, Zn 0.045%, Pr 0.045%, Nb 0.025%, the balance is aluminum and inevitable non-metallic inclusions,

[0066] Preparation method of the cable:

[0067] (1) Put each component raw material into the smelting furnace and smelt at 780-790℃. After all the raw materials are melted, stir for 40min; then add the refining agent for refining, the refining temperature is 710℃, the refining time is 30min, After the slag, let it stand for 50 minutes, then adjust the temperature to 700℃, and pass the 40% Ar and 60% CO mixed gas in the molten aluminum for 30 minutes for degassing and refining. The gas flow rate is 3m...

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Abstract

Disclosed is a production method of an aluminum alloy core cable. The aluminum alloy core cable comprises an aluminum alloy core material, a nickel alloy layer outside the core material and an insulating layer at the outermost layer. The tensile strength of the aluminum alloy core cable produced according to the production method is greater than 15 kg / mm<2>, the yield strength is greater than 13 kg / mm<2>, the stretching rate is 8%, and the electric conductivity is greater than 67%IACS.

Description

Technical field [0001] The invention relates to a method for preparing an aluminum alloy core cable, which belongs to the field of cable material manufacturing. Background technique [0002] At present, copper core materials are mostly used in various power cables, which are expensive. If the aluminum core material is used, because the yield strength of the aluminum core material is low, the amount of creep is large, and a large amount of creep will occur after long-term use, which will cause great safety hazards. [0003] Power cables, especially power cables installed in roads and bridges, culverts, underground projects and various buildings, must have excellent mechanical properties. However, aluminum alloy wires with such characteristics often have low conductivity and heat resistance. (Including high temperature creep performance) is poor. Summary of the invention [0004] The invention provides a method for preparing an aluminum alloy core cable, [0005] The cable includes a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02H01B7/28H01B9/00H01B13/00
Inventor 戴先利
Owner 广州市凯博电线电缆有限公司
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