Industrial electric heating furnaces – Induction furnace device – Power supply system
Patent
1999-09-21
2000-11-07
Hoang, Tu Ba
Industrial electric heating furnaces
Induction furnace device
Power supply system
373142, 373146, 373150, 373156, H05B 606
Patent
active
061446904
ABSTRACT:
The present invention relates to a melting method by which the melting raw materials having a variety of configurations are collectively melted to enable the composition to be adjusted in the melt, and a melting apparatus and tapping method by which tapping is readily controlled, wherein the raw materials are melted by flowing an electric current satisfying the frequency range defined by the equation below using a crucible with an inner diameter of 400 mm or more in melting using a cold crucible induction melting apparatus, the melt being tapped through a tapping nozzle provided at the bottom of the crucible and equipped with a tapping coil wound around the circumference of the nozzle:
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Jacobs, M.H., Dowson, A.L., Gouma, P.I., Loretto, M.H., "Induction Cold-Crucible Melting and Pouring of Titanium Alloys for Spray Forming and Gas Atomised Powder Production," International Congress of Electromagnetic Processing of Material, Paris, vol. 1, pp. 243-248 (May 26-29, 1997).
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Ishida Hitoshi
Kusamichi Tatsuhiko
Nagao Motohiro
Ninagawa Shingo
Sakamoto Koichi
Hoang Tu Ba
Kabushiki Kaishi Kobe Seiko Sho
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