| 摘要 |
A monocrystalline rod 3 (Figs. 1 and 2, not shown) is withdrawn downwardly from one side of a rotating molten zone 5, the other side being heated by a coil 4. Molten zone 5, which adheres to the lower end of a rod 2, may be replenished by progressive melting of rod 2 or by feeding a further rod into molten zone 5 through coil 4. Rod 2 may be pre-heated by a coil 6. Molten zone 5 may be supported by coil 4 or an auxiliary coil. |
