Device for regeneration of aluminum alloy crassitude grain refinement

Abstract

The invention relates to a device which is used on recycled an alloy coarse grain refinement, which is characterized in that the opposite positions of an electric stove and a copple are fixed, and the upper portion of the electric stove is connected with a supporting stand, the supporting stand is fixed with a fixed screw rod through a fixed pin, the center of the supporting stand is connected with a primary column, a central gear wheel and a bearing are connected on the primary column, a plurality of secondary columns are arranged around the primary column, a secondary gear wheel is connected on each secondary column, and the secondary gear wheel is geared with the central gear wheel. The device has the advantages that the device can evenly stir semi-solid state metal, the temperature of semi-solid metal liquid in the center of the copple is extremely closed to semi-solid metal liquid around the copple, since the central gear wheel rotates with the secondary gear wheel in a reverse direction to lead the stirring direction to be different, therefore, semi-solid metal liquid in the copple is more evenly and completely stirred, and no dear corn exists in the process of stirring.

Description

technical field [0001] The invention relates to a stirring device, in particular to a device for refining coarse grains of recycled aluminum alloys. Background technique [0002] As aluminum alloys are more and more widely used in various fields, there are more and more aluminum alloy waste products. Recycling these aluminum alloys and turning waste into treasure not only saves energy, but also is conducive to environmental protection. However, because high-silicon aluminum alloys often have coarse grains and low mechanical strength, they cannot be used normally. People have used common methods such as chilling, extrusion, and deterioration to solve the problem, but when the material is remelted, the hereditary phenomenon of coarse grains often occurs, so people often use stirring devices to refine the coarse grains. Now The common stirrer is a single-rod stirrer. During the stirring process of this kind of stirrer, the temperature difference between the center of the cruci...

AI Technical Summary

Problems solved by technology

However, because high-silicon aluminum alloys often have coarse grains and low mechanical strength, they cannot be used normally.

People have used common methods such as chilling, extrusion, and deterioration to solve the problem, but when the material is remelted, the hereditary phenomenon of coarse grains often occurs, so people often use stirring devices to refine the coarse grains. Now The common stirrer is a single-rod stirrer. During the stirring process of this kind of stirrer, the temperature difference between the center of the crucible and the periphery of the crucible is too large, often the center is still liquid, and the periphery has solidified, making it difficult for the molten metal in the crucible to be uniform.

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