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Aluminum alloy round bar and production method thereof

A production method and aluminum alloy technology, applied in the field of aluminum alloy materials, can solve the problems of inability to produce high-strength alloy round aluminum rods and in-depth research and development of the production process of high-strength alloy round aluminum rods, achieving no memory effect and good thermal stability , The effect of strong anti-corrosion and anti-creep performance

Inactive Publication Date: 2013-12-18
HENAN HUILONG ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, domestic mature and industrialized manufacturers of high-strength alloy round aluminum rods do not yet exist. Even the current domestic round aluminum rod production line with the highest level of equipment is imported from Italy’s Continuus by Baotou Aluminum in 2005 and Chinalco Guizhou Branch In 2002, the two continuous casting and rolling production lines imported from Magnesia South Wire Co., Ltd. (Southwire) were unable to purchase alloy formula technology when the equipment was introduced, and did not carry out in-depth research and development on the production process of high-strength alloy round aluminum rods in the later period. The production of high-strength alloy round aluminum rods can only provide pure aluminum electrical round aluminum rod products in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An aluminum alloy round rod, its chemical composition weight ratio is as follows: 0.3% copper, 0.2% iron, 0.05% silicon, 0.02% titanium, 0.01% potassium, 0.001% zinc, 0.001% manganese, 0.0003% magnesium, and the balance is aluminum.

[0023] A kind of production method of aluminum alloy round bar, carry out according to the following steps:

[0024] 1) Electrolyze the primary aluminum liquid and analyze the components of the primary aluminum liquid;

[0025] 2) Add aluminum liquid with a content of more than 99.5% in the melting furnace, and control the temperature between 760°C; add copper and iron, and control the content to 0.3% copper and 0.2% iron; first add copper and iron metal to the melting furnace Internal smelting, kept at 760°C for 30 minutes, and stirred thoroughly and evenly with electromagnetic stirring for half an hour. After pre-furnace analysis, it was determined that the content of each element in the chemical composition met the requirements;

[00...

Embodiment 2

[0034] An aluminum alloy round rod, its chemical composition weight ratio is as follows: 0.2% copper, 0.1% iron, 0.02% silicon, 0.01% titanium, 0.01% potassium, 0.001% zinc, 0.001% manganese, 0.0003% magnesium, and the balance is aluminum.

[0035] A kind of production method of aluminum alloy round bar, carry out according to the following steps:

[0036] 1) Electrolyze the primary aluminum liquid and analyze the components of the primary aluminum liquid;

[0037] 2) Add aluminum liquid with a content of more than 99.5% in the melting furnace, and control the temperature between 800°C; add copper and iron, and control the content to 0.2% copper and 0.1% iron; first add copper and iron metal to the melting furnace Internal smelting, kept at 800°C for 40 minutes, and stirred thoroughly and evenly with electromagnetic stirring for half an hour. After pre-furnace analysis, it was determined that the content of each element in the chemical composition met the requirements;

[00...

Embodiment 3

[0046] An aluminum alloy round rod, its chemical composition weight ratio is as follows: copper 0.5%, iron 0.3%, silicon 0.05%, titanium 0.02%, potassium 0.02%, zinc 0.001%, manganese 0.001%, magnesium 0.0002%, and the balance is aluminum.

[0047] A kind of production method of aluminum alloy round bar, carry out according to the following steps:

[0048] 1) Electrolyze the primary aluminum liquid and analyze the components of the primary aluminum liquid;

[0049]2) Add aluminum liquid with a content of more than 99.5% in the melting furnace, and control the temperature between 780°C; add copper and iron, and control the content to 0.5% copper and 0.3% iron; first add copper and iron metal to the melting furnace Internal smelting, kept at 780°C for 35 minutes, and stirred thoroughly and evenly with electromagnetic stirring for half an hour. After pre-furnace analysis, it was determined that the content of each element in the chemical composition met the requirements;

[005...

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Abstract

The invention discloses an aluminum alloy round bar and a production process thereof. The aluminum alloy round bar comprises the following chemical components in percentage by weight: 0.2-0.5% of copper, 0.1-0.3% of iron, 0.02-0.05% of silicon, 0-0.02% of titanium, 0-0.02% of potassium, no more than 0.001% of zinc, no more than 0.001% of manganese, no more than 0.0003% of magnesium and the balance of aluminum. The production process sequentially comprises the following steps: electrolyzing a primary aluminum solution, performing component analysis, adding copperon, electromagnetically stirring, determining copper and iron contents in the aluminum liquid, adjusting the temperature, purifying in a furnace, standing in the furnace, purifying outside the furnace, performing on-line degassing, continuously casting, shearing a blank, continuously rolling, cooling, and inspecting to obtain the finished round aluminum bar. The aluminum alloy round bar disclosed by the invention is mainly used for processing of high-conductivity aluminum alloy cables. Compared with copper core cables, the cables produced from the aluminum alloy round bar have better corrosion resistance and creep resistance, the elasticity is reduced by 40%, and the flexibility is increased by 30%; and the cables produced from the aluminum alloy round bar have no memory effect, and are favorable in heat stability.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy materials, in particular to an aluminum alloy round rod and a production method thereof. Background technique [0002] At present, the production of wires and cables in my country is mainly made of pure aluminum electrical round aluminum rods. Due to the low strength of pure aluminum electrical round aluminum rods and the tensile strength ≤ 140MPa, steel cores are usually added to form steel-cored aluminum stranded wires when making wires and cables. , This will increase the weight of the wire and cable, increase the resistance, and reduce the corrosion resistance, resulting in an increase in the load of the pole, increased line loss, and shortened life, which is not conducive to the realization of high-voltage power transmission with large span and high carrying capacity. High-strength alloy aluminum wire has the characteristics of good heat resistance and large carrying capacity. It can re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/12C22C1/02B22D11/045C22F1/04
Inventor 田长江
Owner HENAN HUILONG ALUMINUM IND
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