Gas-assisted magnesium alloy melt purification device and use method

By designing a gas-assisted magnesium alloy melt purification device including crucible, aeration device, filter, blowing device and cyclone, the existing magnesium alloy refining equipment has solved the problems of complex operation, high cost and secondary pollution risks, and the efficient purification and performance improvement of magnesium alloy melt has been achieved.

CN119710346APending Publication Date: 2025-03-28SHANGHAI SPACE PRECISION MACHINERY RES INST
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Patent Information

Application Number
CN202411725940.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing magnesium alloy refining equipment is complex in operation, high in cost and is not suitable for industrial applications. In addition, the traditional gas spray refining method has the risk of secondary pollution, making it difficult to effectively remove inclusions and harmful gases in the magnesium melt.

Method used

A gas-assisted magnesium alloy melt purification device is designed, including a crucible, an aeration device, a filter, an air blowing device and a cyclone. The surface of the magnesium melt is stirred and settled through the aeration head, and the combination of the filter and a cyclone chamber is used to improve the removal rate of inclusions.

Benefits of technology

It realizes efficient purification of magnesium alloy melt, improves the quality and performance of the alloy, reduces operating complexity and cost, is suitable for industrial applications, and avoids the risk of secondary pollution.

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Abstract

The invention provides a gas-assisted magnesium alloy melt purification device and a use method, and relates to the technical field of magnesium alloy melt treatment, the gas-assisted magnesium alloy melt purification device comprises crucibles, an aeration device, a filter, a blowing device and a rotational flow chamber, the crucibles comprise a first crucible and a second crucible, the aeration device is arranged at the upper end of the first crucible, and the filter is arranged at the lower end of the second crucible; the first crucible is connected with the second crucible through a pipeline, a filter is arranged in the pipeline, a rotational flow chamber is arranged in the bottom of the second crucible, and the rotational flow chamber is connected with an external blowing device. A violent turbulent impinging zone is formed on the surface of the magnesium melt through the aeration device, flux on the surface of the magnesium melt is promoted to efficiently and uniformly enter the magnesium melt, bubbles and small-particle inclusions are gathered towards the center under the action of rotational flow through blowing of the rotational flow chamber at the bottom, the bubbles can adhere to and collide with the polymerized and grown inclusions, and thus the magnesium melt is formed. Particularly, adhesion of small-particle-size bubbles which are difficult to remove by floating improves the removal rate of small-particle-size inclusions, and the overall removal rate of the inclusions is greatly improved.
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