Ultrasonic metal melting equipment is mainly used in the metallurgical industry; in ultrasonic vibration conditions, the metal solution is conducive to degassing, de-impurities, refining the grain and strengthening the leaching process, etc. Ultrasonic metal melt equipment applied to the molten metal solution can achieve the compounding of fibers and metals quickly, and high-performance composite materials are prepared. The liquid metal can penetrate the particle preform or mix evenly with the particle under the action of ultrasound, and ultrasonic dip plating can realize steel wire galvanization and aluminum plating.
Ultrasound is a compressed longitudinal wave, can be in the gas, liquid, solid, solid melt, and other media effective propagation, with intense penetration. Ultrasonic waves in the liquid medium, when the transmission of solid energy, can produce a strong impact and cavitation at the interface. The same sound waves will produce reflection, interference, superposition, and resonance phenomenon. In the same amplitude conditions, the intensity of ultrasonic waves than ordinary sound waves is much greater than in the metallurgical industry and has achieved specific industrial application results.
Table of Contents
The primary function of Ultrasonic metal melting equipment
Removal of impurities
It is tough to float tiny inclusions in the steel solution, and only when they are aggregated does it make the floating easier. The use of ultrasonic metal melting equipment is to add ultrasonic waves to the solution. Ultrasonic standing waves can successfully stratify and collect inclusions or powders in solution.
Ultrasonic waves are instrumental in removing gas from molten metal, and ultrasonic elastic vibrations can completely degas an alloy in a matter of minutes. When ultrasonic vibration is introduced into the molten metal, cavitation occurs due to the cavity created by the rupture of the liquid phase’s continuity so that the gas dissolved in the liquid metal is concentrated into it. The elastic vibration of ultrasonic waves drives the bubble core generation and causes it to grow until it grows to a size where it can be smoothly expelled from the molten metal.
Improving the quality of cast billets
Ultrasonic metal dissolving equipment can act on the crystallizer to improve the surface quality of the cast billet. The crystallizer’s ultrasonic vibration can be used for small billets, blooms, and slabs without negative sliding when vibrating with ultrasound. When casting small and large billets, a very smooth surface can be obtained after applying ultrasonic vibration to the crystallizer.
Ultrasonic assisted static casting
Ultrasonic vibration solidification method for the production of castings, ultrasonic waves in propagating positive and negative alternating acoustic pressure, the formation of jets, while due to the non-linear effect will produce acoustic and micro-acoustic flow, and ultrasonic cavitation in the concrete and liquid interface will produce high-speed micro-jet. The cavitation effect in the ultrasonic liquid can cut off and destroy the dendrites, impact the solidification front, and increase the role of stirring and diffusion, purifying the organization, refining the grain homogenize the organization. In addition to the mechanical effect caused by vibration to destroy the dendrites, another critical role of ultrasonic vibration solidification is to improve the metal liquid’s effective subcooling, reducing the critical nucleation radius, increasing the nucleation rate, and refining the grains.
During the continuous casting of aluminum-silicon alloys, ultrasonic treatment can refine the cast billets’ grain, which improves the plasticity and flexibility of these alloys, making them better for use in building materials and automotive engines pistons. Applying ultrasound to aluminum alloy liquids avoids the generation of oxide inclusions and can significantly refine their microstructure.
Reasons for choosing ultrasonic metal melting machine
High-temperature resistance: The maximum withstand temperature will be 1300℃.
Corrosion resistance: Using high-strength titanium alloy tool head.
Significant effect: Intermolecular action makes the impact more direct and obvious.
Easy to install: Installed by standard flange docking, no need to change the customer’s existing production equipment and process flow.
The experimental scenario of ultrasonic metal melting equipment
Power ultrasound will be used more and more extensively in enhanced metallurgy processes, preparation of composite materials, and separation and purification of metallurgical products. Power ultrasound will play an increasingly important role in leaching, electrowinning, extraction, crystallization, coalescence, filtration, dehydration, adsorption, and desorption processes. Ultrasonic metal melt equipment in metallurgy will become a more and more promising application.