Manufacturing method of high-strength and high-conductivity aluminum-magnesium-silicon alloy contact tube bus

A high-conductivity, manufacturing method technology, applied in the manufacture of rigid tube cables and other directions, can solve the problems of product quality not meeting the needs of industrial production development, uneven performance of conductive tube busbars, low production efficiency, etc., to shorten the production process, improve Production efficiency and yield, the effect of reducing the drawing pass

Active Publication Date: 2016-05-25
湖北莲花电力母线制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of uneven performance, low yield, low production efficiency, high production cost, and product quality that cannot meet the needs of industrial producti

Method used

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Examples

Experimental program
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Effect test

Example

[0016] Example 1: The chemical composition weight percentage of the busbar blank is selected as: Mg0.56, Si0.52, Cu0.15, B0.05, rare earth 0.10, Be0.05, Fe≤0.25, Cr+V+Ti+Mn<0.05, The balance is Al; production is carried out according to the following process steps:

[0017] (1) Using 99.7% aluminum ingots, magnesium ingots, and Al-Fe, Al-Cu, Al-rare earth, and Al-B master alloys, calculate the weight ratio of each alloy raw material according to the above chemical composition weight percentage range. After all the materials are put into the melting furnace, after melting, refining, heat preservation and online filtration and adding Al-Ti-B refiner, the vertical semi-continuous casting machine with multi-head crystallizer is used to cast into a tube blank with a diameter of Φ120×20mm, and then cast Temperature 690℃, casting speed 1000mm / min;

[0018] (2) Heat the tube billet to 420°C and keep it for 2 hours, and send it to the planetary rolling mill for tube rolling. By controlling...

Example

[0023] Example 2: The weight percentage of the chemical composition of the busbar blank is selected as: Mg0.62, Si0.58, Cu0.2, B0.03, rare earth 0.15, Be0.08, Fe≤0.25, Cr+V+Ti+Mn<0.05, The balance is Al; production is carried out according to the following process steps:

[0024] (1) Using 99.7% aluminum ingots, magnesium ingots and Al-Fe, Al-Cu, Al-rare earth, and Al-B master alloys,

[0025] Calculate the weight ratio of each alloy raw material according to the above chemical composition weight percentage. Put all the raw materials into the smelting furnace, melt, refining, heat preservation, online filtration, and add Al-Ti-B refiner, then use multi-head crystallization The vertical semi-continuous casting machine of the device casts a billet with a diameter of Φ140×20mm, the casting temperature is 700℃, and the casting speed is 900mm / min;

[0026] (2) Heat the tube billet to 430°C and keep it for 2 hours, and send it to the planetary rolling mill for tube rolling. By controlling...

Example

[0032] Example 3: The weight percentage of the chemical composition of the busbar blank is selected as: Mg0.7, Si0.65, Cu0.25, B0.05, rare earth 0.20, Be0.01, Fe≤0.25, Cr+V+Ti+Mn<0.05, The balance is Al; production is carried out according to the following process steps:

[0033] (1) Using 99.7% aluminum ingots, magnesium ingots, and Al-Fe, Al-Cu, Al-rare earth, and Al-B master alloys, calculate the weight ratio of each alloy raw material according to the above chemical composition weight percentage range. After all the materials are put into the melting furnace, after melting, refining, heat preservation, online filtering and adding Al-Ti-B refiner, the vertical semi-continuous casting machine with multi-head crystallizer is used to cast into a tube blank with a diameter of Φ180×30mm. Temperature 710℃, casting speed 780mm / min;

[0034] (2) Heat the tube billet to 440°C and keep it for 2 hours, and send it to the planetary rolling mill for tube rolling. By controlling the flow of ...

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Abstract

The invention relates to a production technology of a power transmission material, in particular to a manufacturing method of a high-strength and high-conductivity aluminum-magnesium-silicon alloy contact tube bus. The manufacturing method is characterized in that a selected bus blank is prepared from, by weight, 0.40-0.90% of Mg, 0.50-0.9% of Si, 0.10-0.30% of Cu, 0.03-0.08% of B, 0.10-0.25% of rare earth, 0.01-0.1% of Be, smaller than or equal to 0.25% of Fe, smaller than 0.05% of Cr+V+Ti+Mn and the balance Al; then, preparing materials comprising the components are subjected to smelting and semicontinuous casting to form the tube blank, and the tube blank is subjected to planetary rolling, drawing and artificial aging treatment to form the alloy tube bus. By means of the method, the property uniformity of the alloy tube bus is improved, the production efficiency is improved, and the yield is increased; the tube bus produced with the method greatly exceeds the national standard and is widely applied to the power industry.

Description

technical field [0001] The invention relates to the production technology of power transmission materials, in particular to a method for manufacturing a high-strength and high-conductivity aluminum-magnesium-silicon alloy conductive pipe busbar. Background technique [0002] At present, the aluminum alloy conductive pipe busbars widely used in the power industry are mainly made of 6××× series aluminum-magnesium-silicon alloys, such as 6101 and 6201 aluminum alloys, the main alloying elements are limited to Mg and Si, and the strengthening phase is Mg 2 Si. The traditional production method is to produce ingot (rod)-solution treatment-extrusion-stretching-aging treatment. The standard values ​​that the conductive pipe busbars produced by traditional methods can generally achieve are: tensile strength, 200MPa, elongation 8%, and electrical conductivity 51% IACS. With the rapid development of science and technology, and the increase of extreme weather (gale, convection, sever...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C21/08C22F1/043C22F1/047C22F1/05B22D11/041H01B13/004
CPCB22D11/003B22D11/041C22C21/02C22C21/08C22F1/043C22F1/047C22F1/05H01B13/004
Inventor 夏学忠郑小刚兰国林陈春杰林杰军胡洋付雄法张军郭文革郭端午杨火兵徐育生周泱
Owner 湖北莲花电力母线制造有限公司
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