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A medium-strength aluminum alloy cable core

A medium-strength aluminum alloy and aluminum alloy technology, which is applied in the field of aluminum alloy, can solve the problems that medium-strength aluminum alloy cannot obtain performance, etc., and achieve the effects of good mechanical properties and corrosion resistance, reasonable deformation, and optimized process system

Active Publication Date: 2017-10-13
ANHUI ELECTRIC GRP SHARES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing technology, due to the continuous increase in product performance requirements, in the process of preparing the medium-strength aluminum alloy cable core, the medium-strength aluminum alloy obtained by the existing preparation process cannot obtain ideal performance. , providing a good equipment basis for the preparation process control of medium-strength aluminum alloys

Method used

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  • A medium-strength aluminum alloy cable core

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Experimental program
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Effect test

Embodiment 1

[0027] A medium-strength aluminum alloy cable core proposed in this embodiment is made in the following manner:

[0028] S1: Melting: Put the aluminum ingot into the melting furnace. After the aluminum ingot melts into a liquid state at 740°C, add aluminum-silicon alloy, aluminum-iron alloy, aluminum-rare earth alloy, and wait for the aluminum-silicon alloy, aluminum-iron alloy, aluminum- After the rare earth alloy is melted, magnesium ingots are added to form an alloy liquid, and a refining agent is added at 735°C for degassing and refining, and the ingot is cast at 725°C for 40 minutes;

[0029] Among them, the composition of the alloy liquid is adjusted before casting, and the composition of the alloy liquid after adjustment includes: 0.20% iron, 0.40% silicon, 0.40% magnesium, 0.12% rare earth, and the balance is aluminum;

[0030] During the degassing and refining process, the amount of refining agent added is 0.35% of the charge weight, and the hydrogen content in the al...

Embodiment 2

[0035] A medium-strength aluminum alloy cable core proposed in this embodiment is made in the following manner:

[0036] S1: Melting: Put the aluminum ingot into the melting furnace. After the aluminum ingot is melted into a liquid state at 750°C, add aluminum-silicon alloy, aluminum-iron alloy, aluminum-rare earth alloy, and wait for the aluminum-silicon alloy, aluminum-iron alloy, aluminum- After the rare earth alloy is melted, magnesium ingots are added to form an alloy liquid, and a refining agent is added at 740°C for degassing and refining, and the ingot is cast at 730°C for 30 minutes;

[0037]Among them, the composition of the alloy liquid is controlled before casting. After the control, the composition of the alloy liquid includes: 0.23% iron, 0.30% silicon, 0.50% magnesium, 0.10% rare earth, and the balance is aluminum;

[0038] During the degassing refining process, the amount of refining agent added is 0.4% of the charge weight, and the hydrogen content in the allo...

Embodiment 3

[0043] A medium-strength aluminum alloy cable core proposed in this embodiment is made in the following manner:

[0044] S1: Melting: Put the aluminum ingot into the melting furnace. After the aluminum ingot melts into a liquid state at 720°C, add aluminum-silicon alloy, aluminum-iron alloy, aluminum-rare earth alloy, and wait for the aluminum-silicon alloy, aluminum-iron alloy, aluminum- After the rare earth alloy is melted, magnesium ingots are added to form an alloy liquid, a refining agent is added at 730°C for degassing and refining, and the ingot is cast at 720°C for 50 minutes;

[0045] Among them, the composition of the alloy liquid is controlled before casting, and the composition of the alloy liquid after the control includes: 0.17% iron, 0.50% silicon, 0.30% magnesium, 0.15% rare earth, and the balance is aluminum;

[0046] During the degassing refining process, the amount of refining agent added is 0.3% of the charge weight, and the hydrogen content in the alloy li...

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Abstract

The invention discloses a medium-strength aluminum alloy cable core. The medium-strength aluminum alloy cable core is produced through the following steps: melting raw materials to form an alloy liquid, carrying out degassing refining, carrying out heat insulation standing, and casting to obtain cast ingots, wherein components of the regulated alloy liquid comprise, by mass, 0.30% or less of Fe, 0.30-0.50% of Si, 0.30-0.50% of Mg, 0.10-0.15% of rare earth, and the balance of Al; carrying out water cooling on the obtained cast ingots, carrying out hot rolling, and cooling to obtain a hot-rolled aluminum alloy rod; carrying out wire drawing on the hot-rolled aluminum alloy rod to obtain an aluminum alloy core; putting the aluminum alloy core in a heat insulation furnace, heating to 120-130DEG C according to a heating rate of 2-4DEG C / min, carrying out heat insulation for 20-40min, heating to 155-158DEG C according to a heating rate of 10-15DEG C / min, carrying out heat insulation for 2-2.5h, cooling to 152-154DEG C according to a cooling rate of 1-2DEG C / min, carrying out heat insulation for 40-50min, and carrying out air cooling.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a medium-strength aluminum alloy cable core. Background technique [0002] At present, with the development of conductor alloying, transmission wires using aluminum alloy materials as conductor materials and reinforcement materials are also widely used at home and abroad. The representative types include all aluminum alloy stranded wires and aluminum alloy cored aluminum stranded wires. The all-aluminum alloy stranded wire is composed of the same material, the manufacturing process is very simple, and it has many advantages in engineering applications. In the existing technology, due to the continuous increase in product performance requirements, in the process of preparing the medium-strength aluminum alloy cable core, the medium-strength aluminum alloy obtained by the existing preparation process cannot obtain ideal performance. , providing a good equipment basis for t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C21/02C22C21/08C22F1/04C22F1/043C22F1/047C22F1/05H01B13/00H01B1/02
Inventor 赵建军郑有松周家云
Owner ANHUI ELECTRIC GRP SHARES
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