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An aluminum alloy wire and anti-softening technology, applied in the field of aluminum alloy, can solve problems such as endangering line safety, high operating temperature, and rising load of the power grid, so as to avoid over-design and reduce costs
Active Publication Date: 2022-05-03
JIANGSU ZHONGTIAN TECH CO LTD +1
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Problems solved by technology
[0002] Due to temperature changes in winter and summer, due to the demand for cooling or heating, the demand for electricity increases sharply at this time, and the load of the power grid rises sharply. challenge
[0003] As we all know, the overload of the transmission line will cause the actual operating temperature of the line to be higher than the design operating temperature. Therefore, after a certain period of overload operation, the line material will soften and endanger the safety of the line. Conventional heat-resistant products such as Al-Zr series heat-resistant aluminum alloy wires are At present, it is a conventional solution for high-temperature operation of lines, but its manufacturing price is significantly higher than that of ordinary aluminum-magnesium-silicon alloy wires, and it is over-designed to apply Al-Zr series heat-resistant aluminum alloy wires only to short-term high-load lines
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[0034] Secondly, the present application provides a method for preparing an anti-softening aluminum alloy wire, which includes the following steps:
[0035] S1. According to the formula of the anti-softening aluminum alloy wire, after the aluminum liquid is obtained, silicon source, magnesium source, iron source, lanthanum source, cerium source and yttrium source are added to the aluminum liquid for melting to obtain an aluminum alloy melt.
[0036] Wherein, the temperature of molten aluminum is 720-750°C.
[0037] The way to obtain molten aluminum can be obtained by first obtaining aluminum ingots, and then melting the aluminum ingots. In order to avoid the introduction of impurities, the aluminum ingots can be aluminum ingots with a purity of not less than 99.7%. In addition, the way to obtain liquid aluminum can also be to directly use electrolytic aluminum liquid.
[0038] Specifically, by mass percentage, the formula includes the following ingredients:
[0039] Si 0.2%-...
Embodiment 1-8
[0059] Embodiments 1-8 respectively provide a softening-resistant aluminum alloy wire, which are all prepared by the following preparation methods:
[0060] (1) Prepare raw materials according to the formulas corresponding to Examples 1-8 in Table 1: master alloys as silicon source, magnesium source, iron source, lanthanum source, cerium source and yttrium source, and aluminum ingots with a purity of 99.7%.
[0061] (2) Melt aluminum ingots with a purity of 99.7% in the holding furnace, and then accurately put in the rest of the raw materials for smelting.
[0062] (3) In the holding furnace, use powder spraying refining agent to remove slag, degas, purify the furnace, sample the aluminum alloy liquid in the holding furnace, and ensure that the content of each element conforms to the ratio in Table 1. The aluminum alloy solution was left to stand in the holding furnace for 30 minutes. Then electromagnetically stir the aluminum alloy liquid in the holding furnace, degas again,...
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Abstract
An anti-softening aluminum alloy material, an anti-softening aluminum alloy wire and a preparation method thereof, relating to the field of aluminum alloys. In terms of mass percentage, the anti-softening aluminum alloy material includes the following components: Si0.2%‑0.6%, Mg 0.3%‑0.8%, Fe 0.12%‑0.3%, M 0.04%‑0.15%, Y0.01%‑0.06% , the total content of Mn, V, Ti and Cr is controlled at ≤0.01%, and the balance is Al, wherein the mass ratio of Fe to Si is 0.2‑0.8, and M is composed of La and Ce. Based on the above specific components and proportions, the softening-resistant aluminum alloy material has better heat resistance and softening resistance. Therefore, it is especially suitable for making wires, which not only does not significantly increase the production cost, but also has a certain Short-term high-load transmission capacity.
Description
technical field [0001] The present application relates to the field of aluminum alloys, in particular to an anti-softening aluminum alloy material, an anti-softening aluminum alloy wire and a preparation method thereof. Background technique [0002] Due to temperature changes in winter and summer, due to the demand for cooling or heating, the demand for electricity increases sharply at this time, and the load of the power grid rises sharply. challenge. [0003] As we all know, the overload of the transmission line will cause the actual operating temperature of the line to be higher than the design operating temperature. Therefore, after a certain period of overload operation, the line material will soften and endanger the safety of the line. Conventional heat-resistant products such as Al-Zr series heat-resistant aluminum alloy wires are At present, there is a conventional solution for high-temperature operation of lines, but its manufacturing price is significantly higher ...
Claims
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