To provide a method for manufacturing an ingot capable of suppressing generation of cast defects and of manufacturing a large sound ingot.
In the method for manufacturing the ingot 6 by pulling out a crucible bottom 1 downward while supplying a melting raw material 3 with a CCIM method, a lower end position of a slit 8 formed between copper segments 7 configuring a water-cooled copper crucible 2 is arranged below a lower end position of a high-frequency coil 4 and a position where a solidification interface between a melt pool 5 and the ingot 6 contacts with the inner face of the water-cooled copper crucible 2 is made to be arranged between the lower end position of the high-frequency coil 4 and the position half of the height of the high-frequency coil 4, and the ingot 6 is manufactured.
SODO TATSUHIKO
FUKUMOTO HIROHIKO
NOHARA MASAMI
YOSHIMURA YUKIHIKO
IMAI RYOTA
| JPH11745A | 1999-01-06 | |||
| JP2008049358A | 2008-03-06 | |||
| JP2009113063A | 2009-05-28 | |||
| JP2006281291A | 2006-10-19 | |||
| JPH06229680A | 1994-08-19 | |||
| JPH11745A | 1999-01-06 | |||
| JP2008049358A | 2008-03-06 | |||
| JP2009113063A | 2009-05-28 |
Makoto Suhara
Takenaka Yoshimichi
Next Patent: METHOD FOR MANUFACTURING INGOT AND COLD CRUCIBLE INDUCTION MELTING DEVICE