Method for manufacturing high-strength aluminium-magnesium-slicon alloy wire

Abstract

The invention relates to a manufacturing method of Al-Mg-Si alloy line. The technological process is: selecting excellent aluminum ingot and putting the aluminum ingot in a vertical furnace to be melted; adding magnesium, silicon and iron; implementing the alloying treatment on aluminum liquid in a tilting holding furnace; using solid covering flux to cover the surface of the aluminum liquid afterthe refining through refining agent and standing for more than 30m; using a spectrum analyzer to detect main elements and regulating when the content is deviated; slowly dumping the aluminum solutionby the tilting holding furnace; adding 0.03 to 0.5 percent of aluminum boron alloys when the dumped aluminum solution is refined through a chute and a continuous scouring device outside of the furnace; continuously casting with an aluminum alloy caster that is composed of an H-type wheeled crystal wheel into the aluminum alloy ingot; putting the aluminum alloy ingot in a two-roller with three-roller novel combined aluminum alloy continuous mill to mill the ingot into a Al-Mg-S alloy bar. The aluminum alloy bar is arranged at a sliding wire drawing machine to be drawn into aluminum alloy product line with required diameter and be stranded into line. The invention has the advantages of both ensuring the high strength and improving the conductivity simultaneously. The conductivity can reachto 53 percent IACS and the strength reaches to 315MPa.

Description

technical field [0001] The invention relates to a manufacturing process of electrical materials, which is a manufacturing technology of high-strength aluminum-magnesium-silicon alloy, more precisely, a manufacturing method of high-strength and low-resistance aluminum-magnesium-silicon alloy wire. Background technique [0002] At present, to obtain high-strength aluminum-magnesium-silicon alloy wire, aluminum ingots are used to obtain alloy rods through conventional smelting, alloying, scouring and ordinary continuous casting and rolling. The performance requirement is above 53% IACS. At present, the main properties of the domestic aluminum-magnesium-silicon alloy wire are the following two types, such as the conductivity of the LHA1 type aluminum-magnesium-silicon alloy wire is 52.5% IACS, and the strength is 315Mpa; the conductivity of the LHA2 type aluminum-magnesium-silicon alloy wire is 53% IACS, and the strength is 295Mpa; These are due to the defects of the manufactur...

AI Technical Summary

Problems solved by technology

At present, the main properties of the domestic aluminum-magnesium-silicon alloy wire are the following two types, such as the conductivity of the LHA1 type aluminum-magnesium-silicon alloy wire is 52.5% IACS, and the strength is 315Mpa; the conductivity of the LHA2 type aluminum-magnesium-silicon alloy wire is 53% IACS, and the strength is 295Mpa; These are due to the defects of the manufacturing equipment, the instability of the manufacturing process and the problem of the formula, so that the main properties of the high-strength aluminum-magnesium-silicon alloy wire, namely the electrical conductivity and the residual strength rate, have not yet reached the best state.

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