​Shenzhen Summit Levitation Metallurgical S&T Limited

Shenzhen Summit Levitation Metallurgical R&D Institute

Levitation Melting Technology Introduction
Working Principle Video
Levitation Melting also is called Vacuum Cold Crucible Induction Levitation Melting, which uses the segmented
water-cooled cold copper crucible which does not react with the melt under vacuum or inert atmosphere in an induction coil.The electromagnetic field produced by the induction coil, that passes through the cold crucible to produce the induced eddy current, the eddy current heat and melt the metal charge,meanwhile, the eddy current interact with magnetic line of force thus produce the Lorentz Force which supports and levitates the liquid metal pool, so it is an ideal melting process that no crucible contamination, no gas element contamination, eliminate inclusions, homogeneous melt, high superheat, and so on.

Unique Advantages
☆ No crucible Contamination, capable of producing materials with homogeneous and accurate composition
☆ Ideal for reactive metals and alloys melting and preparation
☆ High melting temperature achievable, over 3000℃

※ Complete levitation melting without crucible ——max meltign capacity is several grams 
※ Complete levitation melting with crucible——max melting capacity is several kilograms——almost no contact between the liquid meltal and the bottom of the curcible
※ Cold crucible levitation melting ——max melting capacity is several tens of kilograms——soft contact between the liquid meltal and the bottom of the curcible accidentaly

※ Cold crucible skull melting ——max melting capacity is several hundreds of kilograms——the liquid meltal will form a skull at the bottom of the crucible

Cold crucible vacuum induction melting technology
    Above four kinds of levitation melting technology, except the first, the rest three kinds are called as "cold crucible induction melting technology". This kind of technology has been used very maturely in research and production of high purtiy materials & alloys, refractory metals & alloys, reactive metal & alloys.
    Cold crucible induction melting uses copper crucible. In order to let the electromagnetic field enter the interior of the crucible, crucible along the axial direction is divided into several petals, each petal must get powerful cooling to ensure that the copper crucible will not be melted and burned during melting.