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Device for melting and casting of amorphous and nano-crystalline alloys
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Device for melting and casting of amorphous and nano-crystalline alloys constitutes section of LPS line (a line for semi-industrial simulation of the processes of manufacturing of metal alloys and metal products) as A3 module and is used for melting of metals and alloys in vacuum or under pressure of shielding gas as well as for pressure-die casting of metals and alloys into cooled moulds.
In the process of manufacturing of solid products of amorphous structure, a critical element of technology is ensuring high rate of cooling which would eliminate, or reduce crystallization during transition from liquid to solid state. Cooling rate on the cross-section of casting depends on intensity of heat absorption by mould and heat parameters of alloy  (heat transfer coefficient) which determine heat flow in the casting volume. The device is composed of high frequency generator, cooling system and pressure chamber where modules for melting and casting of metals and alloys are placed in turns.
The weight of cast material is from 50 g to 500 g, and the applied technology makes it possible to cast monolithic plates of dimensions 50 mm x 50 mm and of thickness from  2 to 5 mm and bars of diameter from 5 mm to 15 mm and length from  50 mm to 100 mm, at maximum cooling rate ~102oC/s. The device is equipped with operator’s panel for control of the process and recording parameters of the process. Device for melting and casting of amorphous and nano-crystalline alloys was purchased under the project POIG.01.03.01-00-042/08 cofinanced by the European Fund for Regional Development and it was rendered operational in 2010.

 


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