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Preparation method for heat-resistant electrician round aluminum rod

A round aluminum rod and electrician technology, which is applied in the field of preparation of heat-resistant electrical round aluminum rods, can solve the problems of increasing melting furnace, increasing production cost, secondary environmental pollution, etc., shortening the process flow, improving mechanical properties, reducing production cost effect

Inactive Publication Date: 2017-02-22
山东创辉新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since aluminum ingots need to be melted to manufacture heat-resistant electrical round aluminum rods, melting furnaces, continuous casting and rolling equipment will be added, resulting in increased production costs
In addition, causing secondary environmental pollution

Method used

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  • Preparation method for heat-resistant electrician round aluminum rod
  • Preparation method for heat-resistant electrician round aluminum rod
  • Preparation method for heat-resistant electrician round aluminum rod

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preparation example Construction

[0021] A method for preparing a heat-resistant electrical round aluminum rod of the present invention comprises the following steps: adding an aluminum-boron master alloy, an aluminum-zirconium master alloy and a rare-earth master alloy to the electrolytic aluminum liquid and stirring to obtain an aluminum melt, so that the boron in the aluminum melt The mass fraction is 0.006-0.01%, the mass fraction of zirconium is 0.03-0.18%, and the mass fraction of rare earth is 0.10-0.25%;

[0022] Heat-resistant electrical round aluminum rods are obtained by refining the above-mentioned aluminum melt, standing still, continuous casting and rolling.

[0023] The above-mentioned term "electrolytic aluminum liquid" refers to the molten liquid aluminum prepared by electrolytic industrial methods. Here, the electrolytic aluminum industry method adopts the cryolite-alumina molten salt electrolysis method, that is, the molten cryolite is used as the solvent, the alumina is used as the solute, ...

Embodiment 1

[0049] A method for preparing a heat-resistant electrical round aluminum rod, comprising the following steps:

[0050] (1) Add electrolytic aluminum liquid into the holding furnace first, so that the temperature of the electrolytic aluminum liquid is controlled at 750°C.

[0051] (2) Add aluminum-boron master alloy, aluminum-zirconium master alloy and rare earth master alloy to the above electrolytic aluminum liquid, keep the furnace temperature at 750°C for 10 minutes after adding, and at the same time, use electromagnetic stirring to stir evenly until the aluminum-boron master alloy, aluminum-zirconium master alloy and The rare earth alloy is fully dissolved, so that the mass fraction of boron in the aluminum solution is 0.006%, the mass fraction of zirconium is 0.03%, and the mass fraction of rare earth is 0.25%.

[0052] (3) Refining: the temperature of the aluminum melt is controlled at 730° C., and the aluminum melt is refined by using more than 99.99% high-purity liquid...

Embodiment 2

[0060] A method for preparing a heat-resistant electrical round aluminum rod, comprising the following steps:

[0061] (1) Add electrolytic aluminum liquid into the holding furnace first, so that the temperature of the electrolytic aluminum liquid is controlled at 750°C.

[0062] (2) Add aluminum-boron master alloy, aluminum-zirconium master alloy and rare earth master alloy to the above electrolytic aluminum liquid, keep the furnace temperature at 750°C for 20 minutes after adding, and at the same time stir evenly with electromagnetic stirring until the aluminum-boron master alloy, aluminum-zirconium master alloy and The rare earth alloy is fully dissolved, so that the mass fraction of boron in the aluminum solution is 0.008%, the mass fraction of zirconium is 0.10%, and the mass fraction of rare earth is 0.20%.

[0063] (3) Refining: The temperature of the aluminum melt is controlled at 730° C., and the powder refining agent is blown into the aluminum melt with argon gas for...

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Abstract

The invention provides a preparation method for a heat-resistant electrician round aluminum rod. The preparation method comprises the following steps that aluminum-boron intermediate alloy, aluminum-zirconium intermediate alloy and rare earth intermediate alloy are added into electrolytic aluminum liquid, an aluminum solution is obtained through stirring, the mass fraction of boron in the aluminum solution is 0.006-0.01%, the mass fraction of zirconium in the aluminum solution is 0.03-0.18%, and the mass fraction of rare earth in the aluminum solution is 0.10-0.25%; and after the aluminum solution is subjected to refining, still standing, pouring and rolling, the heat-resistant electrician round aluminum rod is obtained. According to the preparation method for the heat-resistant electrician round aluminum rod, the electrolytic aluminum liquid is used as a raw material, melting required by the condition that aluminum ingots are used as raw materials is avoided, and the technological process is shortened, so that the production cost is reduced, and the method is more environmentally friendly; and in addition, the electrolytic aluminum liquid is subjected to boronizing and refining treatment by adding a proper amount of the aluminum-boron intermediate alloy, the aluminum-zirconium intermediate alloy and the rare earth intermediate alloy into the electrolytic aluminum liquid, more uniform refined casting grains are obtained advantageously, and the mechanical performance of the heat-resistant electrician round aluminum rod is improved.

Description

technical field [0001] The invention relates to the technical field of electrical round aluminum rods, in particular to a method for preparing a heat-resistant electrical round aluminum rod. Background technique [0002] The electrical round aluminum rod is mainly used in the wire and cable industry, and its electrical and mechanical properties are the key to whether various aluminum core wires and cables can reach the international advanced level. [0003] In the prior art, aluminum ingots are usually used for heat-resistant electrical round aluminum rods, that is, common aluminum ingots and waste aluminum wires are melted first, and then cast and rolled. Since aluminum ingots need to be melted to manufacture heat-resistant electrical round aluminum rods, melting furnaces, continuous casting and rolling equipment will be added, resulting in increased production costs. In addition, it causes secondary environmental pollution. Contents of the invention [0004] In view of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C1/06C22C21/00
CPCC22C1/026C22C1/03C22C1/06C22C21/00
Inventor 刘东段江王超
Owner 山东创辉新材料科技有限公司