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High-elongation aluminum alloy material and preparation method thereof

An aluminum alloy material, high elongation technology, used in metal rolling, temperature control and other directions, can solve the needs of wire and cable development, poor wire and cable elongation, flexibility and creep resistance, safety and stability Low problems, to achieve the effect of being conducive to processing, improving creep resistance and thermal stability, and improving organizational structure

Active Publication Date: 2009-09-09
ANHUI JOY SENSE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when ordinary electrical aluminum is used as a conductor, the elongation, flexibility and creep resistance of wires and cables are poor, and the safety and stability of use are low. Therefore, using ordinary electrical aluminum instead of copper as a conductor cannot meet the needs of wire and cable development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Casting process

[0021] 1. Ingredients

[0022] 5100kg aluminum ingot (0.07% Si content, 0.13% Fe content), 40.4kg aluminum-iron alloy (22% Fe content), 5.6kg rare earth aluminum alloy (10% rare earth content), 8.8kg boron aluminum alloy (3.5% B content) , 2.3kg refining agent (23%Na 3 Al.F6+47% KCl+30% NaCl).

[0023] 2. Feeding method

[0024] When feeding, the aluminum-iron alloy is evenly added in batches from the cupola along with the aluminum ingots to ensure that the composition is as uniform as possible.

[0025] 3. Heat preservation process

[0026] When the aluminum alloy liquid flows into the holding furnace, the temperature is controlled at 710-750°C; when rare earth aluminum alloy and boron aluminum alloy are added to the aforementioned aluminum alloy liquid, the temperature should be raised to 720-760°C, and the temperature should not exceed 760°C. The temperature is beneficial to the melting of rare earth aluminum alloy and boron aluminum alloy, ...

Embodiment 2

[0055] 1. Casting process

[0056] 1. Ingredients

[0057] 5110kg aluminum ingot (0.10% Si content, 0.13% Fe content), 258kg aluminum-iron alloy (23.2% Fe content), 166.5kg rare earth aluminum alloy (9.8% rare earth content), 10kg boron aluminum alloy (3.3% B content), 2.3 kg refining agent (23%Na3 Al·F6+47%KCl+30%NaCl)

[0058] 2. Feeding method

[0059] When feeding, the aluminum-iron alloy is evenly added in batches from the cupola along with the aluminum ingots to ensure that the composition is as uniform as possible.

[0060] 3. Heat preservation process

[0061] When the aluminum alloy liquid flows into the holding furnace, the temperature is controlled at 710-750°C; when rare earth aluminum alloy and boron aluminum alloy are added to the aforementioned aluminum alloy liquid, the temperature should be raised to 720-760°C, and the temperature should not exceed 760°C. The temperature is beneficial to the melting of rare earth aluminum alloy and boron aluminum alloy, th...

Embodiment 3

[0091] 1. Casting process

[0092] 1. Ingredients

[0093] 5125kg aluminum ingot (0.12% Si content, 0.12% Fe content), 107kg aluminum-iron alloy (21.9% Fe content), 118kg rare earth aluminum alloy (10.1% rare earth content), 14.8kg boron aluminum alloy (3.0% B content), 2.8 kg refining agent (23%Na 3 Al.F6+47% KCl+30% NaCl).

[0094] 2. Feeding method

[0095] When feeding, the aluminum-iron alloy is evenly added in batches from the cupola along with the aluminum ingots to ensure that the composition is as uniform as possible.

[0096] 3. Heat preservation process

[0097] When the aluminum alloy liquid flows into the holding furnace, the temperature is controlled at 710-750°C. When rare earth aluminum alloy and boron aluminum alloy are added to the aforementioned aluminum alloy liquid, the temperature should be raised to 720-760°C, and the temperature should not exceed 760°C. The temperature is beneficial to the melting of rare earth aluminum alloy and boron aluminum all...

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Abstract

The invention relates to a high-elongation aluminum alloy material and a preparation method thereof. The high-elongation aluminum alloy material contains 0.30-1.20% of iron, 0.03-0.10% of silicon, 0.01-0.30% of rare earth elements, and aluminum and inevitable impurities in weight percentage. The aluminum alloy is made from materials according to a fusion casting process and half-annealing treatment. An aluminum alloy conductor made by the method has high elongation and good safety and stability in use.

Description

technical field [0001] The invention belongs to the field of nonferrous metal materials, and in particular relates to a high-elongation aluminum alloy material and a preparation method thereof. Background technique [0002] At present, most of the wires and cables use copper as the conductor. Due to the lack of copper resources, the high price of copper and the high installation cost of copper cables, the development of wires and cables is limited. Because aluminum resources are abundant and the cost is low, it will be a trend to use aluminum instead of copper as a conductor for wires and cables. However, when ordinary electrical aluminum is used as a conductor, the elongation, flexibility and creep resistance of wires and cables are poor, and the safety and stability of use are low. Therefore, using ordinary electrical aluminum instead of copper as a conductor cannot meet the needs of the development of wires and cables. Contents of the invention [0003] The purpose of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/06C22C1/03C22F1/04C21D1/26B22D21/04B21B37/74B21B1/46
CPCC22F1/04C21D1/26B22D21/007C22C1/06C22C21/00C22C1/00
Inventor 余乐华万有梅
Owner ANHUI JOY SENSE CABLE
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