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Title:
WATER-COOLED COPPER CRUCIBLE FOR LEVITATIONAL MELTING
Document Type and Number:
Japanese Patent JP2002122386
Kind Code:
A
Abstract:

To eliminate a reaction of a copper of a stock of a crucible with a molten metal when the metal is contact held in the crucible in melting a material containing aluminum and another low melting point alloy as main components.

A levitational melding apparatus melts the metal material thrown in the water-cooled copper crucible by induction heating by levitating the material by an electromagnetic repulsion force by exciting an induction coil disposed on an outer peripheral side of the crucible by using a high-frequency power source. In this apparatus, an inside surface of the crucible 1 at least from bottom to a height opposed to a maximum molten metal height or higher is coated with an insulator.


Inventors:
TADANO HIDEAKI
Application Number:
JP2000313604A
Publication Date:
April 26, 2002
Filing Date:
October 13, 2000
Export Citation:
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Assignee:
FUJI ELECTRIC CO LTD
International Classes:
H05B6/24; C22B9/22; F27B14/06; F27B14/10; (IPC1-7): F27B14/10; C22B9/22; F27B14/06; H05B6/24
Attorney, Agent or Firm:
Shoji Shinobe