Floating zone furnace for refining and obtaining single crystals of refractory metals

The machine is intended refining and obtaining single crystals of refractory metals: molybdenum (Мо), niobium (Nb), tungsten/wolfram (W), tantalum (Та) and their alloysin the form of cylindrical bars by method of floating zone.

Floating zone furnace for refining and obtaining single crystals of refractory metals was made "SpectrFloating zone furnace for refining and obtaining single crystals of refractory metals - NPK "Spectr"

Technical characteristics

Geometric dimensions of grown single crystals:

– length for Мо, Nb, W, Та, not less;

– diameter forМо, Nb;

– diameter forW, Та

800 mm
from 10 up to 40 mm

from 10 up to 30 mm

Heater (cathode unit) electron-beam heater with filament (cathode) of annular type
Power

80 kW

Power supply of the machine

380/220 V, 50 Hz

Medium in the melting chamber of the machine

Vacuum, 5∙10-6mmHg

Accuracy of maintaining the rod speed

± 0,5 %

Axial movements and rotations of the upper and lower rods

independent

Accuracy of maintaining the speed of rotation of the upper and lower rods

± 0,5 %

The deviation from alignment of the upper and lower rods

± 0,5 mm

Overall dimensions:

height:

width:

length:

 

4500 mm

2500 mm

3500 mm

Масса

4000 кг

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