Power ultrasonic device for treating high-temperature metal melt under vacuum state and method thereof

Abstract

The invention relates to a power ultrasonic device for treating high-temperature metal melt under vacuum state and a method thereof, and belongs to the field of preparation of metal materials. The method has the technical characteristics that the power ultrasonic device is used for treating the high-temperature metal melt under the vacuum state. The power ultrasonic device is characterized in that tantalum with purity being 99.98% is taken as the material of a tool head, and stable and continuous ultrasonic waves can be conducted, and the power ultrasonic device can be prevented from being corroded by high-temperature metal liquid. During the casting process, a vacuum device is adopted for protecting an ultrasonic transducer, alloy to be treated and a temperature preservation device, on one hand, the tantalum tool head can be prevented from being oxidized to deteriorate, one the other hand, the degassing effect of the ultrasonic treatment on the metal melt can be improved by virtue of the vacuum condition. For the produced alloy material, the solidification tissue is fine and compact, the distribution is uniform, and the clarifying effect is good, so that the mechanical property is greatly improved. The invention provides a new technical means for application of ultrasonic treatment of high-temperature melt in industrial production.

Description

technical field [0001] The invention belongs to the field of metal material preparation, and in particular relates to a high-temperature-resistant metal-corrosion power ultrasonic device capable of processing molten metal under high temperature. Background technique [0002] Power ultrasound is a technical method that uses energy in the form of ultrasonic vibrations to change the physical, chemical and biological properties or states of substances, or to speed up the process of such changes. Power ultrasound is widely used in the field of metal processing: power ultrasonic treatment of metal melt can transform coarse columnar crystals into fine equiaxed crystals, make the solidified structure dense, inhibit macro segregation, and have good degassing, Impurity removal effect; the application of power ultrasonic energy in the continuous casting process can improve the quality of the slab. On the one hand, power ultrasonic cavitation can promote the explosive nucleation of the...

AI Technical Summary

Problems solved by technology

[0006] This device mainly solves the technical problems that the original stainless steel tool head is corroded by the high-temperature metal melt during the ultrasonic transmission process, resulting in the failure of the ultrasonic transmission of the tool head, polluting the metal liquid, and being unable to handle high-temperature copper alloy and steel melt; The tool head is not corroded in the high-temperature metal melt, ensures the stable transmission of ultrasonic waves, and can continuously load ultrasonic waves in the metal melt

Images