FIELD: metallurgy.
SUBSTANCE: charge of semiconductor polycrystalline silicon is melted in a graphite crucible which is moved vertically in the heater cavity. A plug of frozen silicon is formed in the bottom hole of the crucible. After plug melting, the melt flows through the bottom opening into the gate opening of the graphite mould and its crystallisation.
EFFECT: production of high purity silicon products.
3 dwg, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND APPARATUS FOR CASTING PRODUCTS FROM HIGH-MELTING METALS AND THEIR COMPOUNDS | 0 |
|
SU1086025A1 |
| APPARATUS FOR CASTING IN VACUUM | 2005 |
|
RU2300443C1 |
| METHOD OF PRODUCING FULL RESISTANCE HEATERS ON THE BASIS OF CARBON-CYBER-BICYCLE MATERIAL | 2016 |
|
RU2620688C1 |
| METHOD OF PRODUCTION OF CAST TUBE STOCK OUT OF ALLOYS ON NICKEL AND/OR COBALT BASE | 2007 |
|
RU2344019C1 |
| METHOD FOR RECEIVING CAST TUBAL CATHODE MADE OF ALLOYS BASED ON ALUMINUM FOR ION-PLASMA SPRAYED COATING | 2007 |
|
RU2340426C1 |
| PRODUCTION METHOD OF CASTINGS IN INDUCTION FURNACE | 2016 |
|
RU2626114C1 |
| METHOD OF PRODUCING LIGHT-WEIGHT SILICON PLATES AND BUILT-UP MOULD FOR EMBODYING SAME | 1992 |
|
RU2026141C1 |
| DEVICE FOR CONTINUOUS GROUPED GROWING OF ORIENTED LAYERS OF SILICON ON A CARBONIC FABRIC | 2004 |
|
RU2258772C1 |
| SHELL MOLD CASTING CHAMBER, CASTING FURNACE, AND SINGLE-CRYSTAL, SMALL-CRYSTAL, AND NON-CRYSTAL CASTING METHOD | 2020 |
|
RU2746111C1 |
| METHOD AND APPARATUS FOR PREPARING MELT SILICATE | 1999 |
|
RU2157795C1 |
