High-yield-strength aluminum alloy formula and smelting key device thereof

Abstract

The invention provides a yield strength pressure casting aluminum alloy. The yield strength pressure casting aluminum alloy has the good casting property, mechanical property and heat treatment property and meanwhile has the higher yield strength, a key device for smelting the alloy comprises a smelting furnace, a permanent magnetic stirring magnet and a permanent magnetic partition board, the permanent magnetic partition board is close to the bottom of the smelting furnace, and is located above the permanent magnetic stirring magnet, the magnetic direction of the permanent magnetic partitionboard is perpendicular to the plane of the permanent magnetic partition board, the area of the permanent magnetic partition board is smaller than the area of the bottom of the smelting furnace, the magnetic field strength of the permanent magnetic partition board is smaller than that of the permanent magnetic stirring magnet, space between the smelting furnace and the permanent magnetic stirring magnet is partly filled with the permanent magnetic partition board, a space non-uniform magnetic field and a time pulse magnetic field are provided, and through the space non-uniform magnetic field and the time pulse magnetic field, uneven drive force is generated in molten metal, and the surging effect is formed.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to the formulation of high-yield-strength aluminum alloys and key smelting devices thereof. Background technique [0002] Aluminum alloy is a common lightweight metal material. It is widely used in industries such as automobiles, ships, aerospace, machinery, and communications. It has the characteristics of good processing performance, light weight, and energy saving. With the continuous development of the automobile industry, the requirements for light weight and low energy consumption of automobiles have become a major trend in the automobile manufacturing industry, and the demand for aluminum alloy, which is the first material for light weight, in automobiles is also expanding. Most of the aluminum alloy parts used in automobiles are formed by casting. Compared with other processing methods, casting has high metal utilization rate and high dimensional accuracy. It can pro...

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Problems solved by technology

At present, automobile engines and rims are mostly manufactured with cast aluminum alloys, which is beneficial to solve heat dissipation and prolong the service life of the parts themselves and the parts that are in direct contact with them. However, the yield strength of the existing cast aluminum alloys The performance is not ideal, which limits the development of high-speed and high-power automobiles. In order to meet the needs of rapid development, it is necessary to develop a die-casting aluminum alloy with yield strength

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