VACUUM SILICONE CLEANING METHOD AND DEVICE FOR ITS IMPLEMENTATION (VERSIONS) Russian patent published in 2010 - IPC C22B9/22 C01B33/37 

FIELD: metallurgy.

SUBSTANCE: method involves charging of cleaned silicone to melting pot, its melting in melting pot by using electron-beam heating, exposure of molten metal in melting pot for impurities and their connections to evaporate and its cooling so that cleaned silicone is obtained. At that, there used is melting pot from heat-resistant material on the basis of silicone connection. Melting pot is arranged in cooled capacity with heat insulator in lower part. Molten silicone exposure is performed for impurities to evaporate at intense heat removal from upper part of melting pot wall at the level of molten metal surface and to keep silicone in molten state with the heat supplied with electron beam directed at local section of melt surface. Device includes vacuum chamber, electron beam gun, melting pot and cooled capacity with heat insulator between them. Cooler is installed on outer wall of melting pot in its upper part. Cooled capacity and cooler are provided with water cooled circuits. Device can be equipped with melt mixing device.

EFFECT: increasing silicone melting and cleaning speed with vacuum evaporation, reducing the cleaning time and decreasing power and material costs.

13 cl, 2 dwg, 1 tbl, 2 ex