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A production process, technology of round aluminum rods, applied in the direction of metal/alloy conductors, conductive materials, conductive materials, etc., can solve problems such as low tensile strength, self-heavy weight, and large cable sag
Active Publication Date: 2017-05-17
YUNNAN ALUMINUM
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At present, the widely used round aluminum rods for electrical engineering in China belong to the pure aluminum series, and the tensile strength is not high. Most of the wires and cables for power transmission are steel-cored aluminum stranded wires. Especially not suitable for use in frozen alpine areas
However, the tensile strength of the existing 6101 and 6201 alloy round aluminum rods is 160-200MPa, but the resistivity of the product is 36nΩ.m. The resistivity is high and the loss is large during power transmission. It is difficult to realize large-span long-distance high-voltage transmission
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Embodiment 1
[0015] A production process of alloy round aluminum rods for electricians in this embodiment, the production process is continuous casting and rolling, and the specific steps are as follows:
[0016] (1) Fill the molten aluminum with an aluminum content of more than 99.60% in the smelting furnace according to the production demand, so that the temperature is controlled at 748°C;
[0017] (2) 1kg of industrial silicon, 5kg of iron agent with 75% iron content and 3kg of copper agent with 75% copper content are added per ton of aluminum;
[0018] (3) After standing for 15 minutes, add 3 kg of rare earth alloy and 4.5 kg of aluminum boron alloy per ton of aluminum, the rare earth includes lanthanum La and cerium Ce;
[0019] (4) Control the temperature in the furnace at 739°C, turn on electromagnetic stirring to stir the aluminum alloy melt for 38 minutes;
[0020] (5) After the sampling analysis meets the requirements of the alloy standard, use 0.1~0.2MPa argon spray powder (ref...
Embodiment 2
[0025] A production process of alloy round aluminum rods for electricians in this embodiment, the production process is continuous casting and rolling, and the specific steps are as follows:
[0026] (1) Fill the molten aluminum with an aluminum content of more than 99.60% according to the production demand in the smelting furnace, so that the temperature is controlled at 760°C;
[0027] (2) 1kg of industrial silicon, 5kg of iron agent with 75% iron content and 3kg of copper agent with 75% copper content are added per ton of aluminum;
[0028] (3) After standing for 19 minutes, add 3kg of rare earth alloy and 4.5kg of aluminum boron alloy per ton of aluminum, the rare earth includes lanthanum La and cerium Ce;
[0029] (4) Control the temperature in the furnace at 756°C, and turn on the electromagnetic stirring to stir the aluminum alloy melt for 40 minutes;
[0030] (5) After the sampling analysis meets the requirements of the alloy standard, use 0.1~0.2MPa argon spray powde...
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Abstract
The invention relates to a production process for a round aluminium alloy rod for electrical engineering. The production process is characterized by adopting a continuous tandem rolling production manner, and comprising the following steps: (1) filling molten aluminium with an aluminium content of more than 99.60% in a smelting furnace, and controlling the temperature of the molten aluminium at 710-770 DEG C; (2) adding 1kg of industrial silicon, 5kg of iron agent with an iron content of 75% and 3kg of copper agent with a copper content of 75% per ton of aluminium; (3) standing for 10-20 minutes, and adding 3kg of rare-earth alloy and 4.5kg of aluminium-boron alloy per ton of aluminium; (4) controlling a temperature in the furnace at 720-760 DEG C, starting up electromagnetic stirring and stirring an aluminium alloy melt for 15-40 minutes; (5) spraying a refining agent by virtue of argon with a pressure of 0.1-0.2MPa and refining for 10-30 minutes after a sampling analysis meets alloy standard requirements; and (6) standing for 20-40 minutes and rotating the furnace after the refining is completed. The elongation of the round aluminium alloy rod obtained by the production process disclosed by the invention meets the drawing requirement of an aluminium rod, greatly reduces loss during a power transmission process, and can realize large-span long-distance high-voltage power transmission.
Description
technical field [0001] The invention relates to a production process of an alloy round aluminum rod, in particular to a production process of an alloy round aluminum rod for electricians, and belongs to the technical field of aluminum alloy wire processing. Background technique [0002] Alloy round aluminum rods for electrical purposes are mainly used as raw materials for wires and cables, and the product performance indicators that need to be mainly controlled are tensile strength, elongation, and resistivity. Resistivity affects the conductive effect of wire and cable, mainly determined by the chemical composition of the material and the content of air slag. The increase of impurity elements and air slag content will increase the resistivity, which is not conducive to the control of product quality; Round aluminum rod drawing processing performance, large elongation, easy drawing processing, high production efficiency; tensile strength affects the power transmission and ov...
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