Laboratory Ultrasonic Molten Metal Processing Machine

Laboratory Ultrasonic Molten Metal Processing Machine

High-power ultrasonic effect on the crystallization of molten metal process, can significantly refine metal grain, homogeneous alloy composition, accelerate the bubble motion, significantly improve the metal material properties, such as strength, hardness, plasticity and toughness.

Frequency:20KHz

Power:500-2000w

input voltage:220v 50hz

max temperaturer:850(℃)

diameter of horn(probe):50mm

Ultrasonic generator: digital generator

Parameters:

Ultrasonic solidification

The formation of non dendritic structures during solidification of metal melts can affect material properties, such as strength, ductility, toughness and / or hardness. Ultrasonic changed grain nucleation: acoustic cavitation and its strong shear force increase the nucleation position and number in melting. Ultrasonic treatment (UST) of melt leads to heterogeneous nucleation and dendrite fragmentation, which significantly improves the grain refinement of the final product.、

Laboratory Ultrasonic Molten Metal Processing leads to uniform wetting of non-metallic impurities in the melt. These impurities become nucleation sites, which is the starting point of solidification. Because these nucleation points occur before the solidification front, they will not cause the growth of dendritic structure. 

Dendrite fragmentation: dendrite melting usually begins at the root due to local temperature rise and segregation. Ust produces strong convection (heat transfer through the mass movement of the fluid) and shock wave in the melt, breaking the dendrite structure. 

Due to extreme local temperature and composition changes, convection can promote dendrite fragmentation and solute diffusion. Cavitation shock waves contribute to the fracture of melted roots.

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