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
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[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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