FIELD: metallurgy.
SUBSTANCE: design includes a melt area, a crucible and a heat-insulating shielding element comprising disc 33a, insulator 33b, cap 33c configured to separate the incoming stream of purge gas II for the first partial flow IIa and a second partial flow lib so that the first partial flow IIa is directed through the melt area and the second partial flow IIb is directed along channel 34 inside of a heat-insulating shielding element by-passing the space inside the crucible located above the specified melt before its leaving the "hot zone". The result is achieved through the construction of a "hot zone", management of gas flows and the growth process, that can reduce energy consumption, increase the service life of the "hot zone" parts and increase productivity, for example - due to the fact that the devices for opening of the "hot zone" are available and that the "hot zone" easily adapts to the various diameters of the crystal.
EFFECT: better economic efficiency of crystal production.
13 cl, 9 dwg
