FIELD: metallurgy.
SUBSTANCE: invention relates to designs of portable crucibles with a given maximum heating temperature of its walls in a high-frequency electromagnetic field in smelting of non-ferrous metals and alloys. The crucible is made composite, while the lining is made in the form of a bottom made of refractory ceramic material, the tank is made in the form of a cylinder made of sheet electrical steel with a thickness of 0.30-0.35 mm, the ends of which are overlapped with each other, and provided with external turns of the spiral, creating a high-frequency magnetic field of 50 kHz, and one of the bases of the tank is fixed with brackets to the bottom of refractory ceramic material.
EFFECT: making a portable crucible for melting aluminium and its alloys, the walls of which, in the process of melting in a high-frequency electromagnetic field, are heated by 40-70°C above the melted alloy.
1 cl, 2 dwg, 1 ex
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