Title:
金属・合金の溶解方法及び溶解鋳造方法
Document Type and Number:
Japanese Patent JP3571212
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a melting and casting method with which various shapes of melting raw materials are melted in the lump and the adjustment of components in the molten metal can be executed and a cast block can be produced by tapping the molten metal just after melting. SOLUTION: In a melting method with which melting treatment is executed by high frequency induction heating at the time of producing a metal and alloy cast block, a crucible 4 for melting, having >=400 mm inner diameter, is constituted with a square or round shaped peripheral barrel part formed by combining many long bar-like copper materials water-cooled in the inner part in a cylindrical shape and a bottom part formed with the copper material water-cooled in the inner part. A high frequency induction coil 5 is wound around the outside of the peripheral barrel part and a high frequency current satisfying the frequency range shown in the following formula is supplied to the high frequency induction coil 5 from a high frequency electric source. The formula is 7.8-2×log D<=log F<=8.7-2× log D. Wherein, F is the frequency of the high frequency electric source (Hz) and D is the inner diameter of the crucible (mm).
Inventors:
Kusamichi Tatsuhiko
Koichi Sakamoto
Hitoshi Ishida
Shingo Nagikawa
Motohiro Nagao
Katsuyuki Yoshikawa
Koichi Sakamoto
Hitoshi Ishida
Shingo Nagikawa
Motohiro Nagao
Katsuyuki Yoshikawa
Application Number:
JP11917198A
Publication Date:
September 29, 2004
Filing Date:
April 28, 1998
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
H05B6/02; B22D23/00; C22B9/16; F27B14/06; (IPC1-7): C22B9/16; B22D23/00; F27B14/06; H05B6/02
Domestic Patent References:
| JP8200963A | ||||
| JP10038466A | ||||
| JP5174963A |
Attorney, Agent or Firm:
Yoshiyuki Kaji