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Title:
ELECTROMAGNETIC PUMP
Document Type and Number:
Japanese Patent JPS6373868
Kind Code:
A
Abstract:

PURPOSE: To prevent cooling and solidification of a molten metal by making a conduit of a conductive refractory material and providing an induction heating means of said conduit.

CONSTITUTION: In a molten-metal feeder using an electromagnetic pump, a crucible B containing a molten metal A is fitted with an electromagnetic pump C and the molten metal A is caused to flow little by little. At the lower end of the crucible B, a conduit 1 communicating into the inner part thereof is installed so that its axis extends vertically, and said conduit 1 is made of a conductive and refractory material. Further, a plurality of coils 2 wound in the manner of surrounding the conduit 1 is arranged in the outer part of said conduit 1. These coils 2 have two functions of generating a shifting magnetic field to induction-heat the conduit 1 and also generating another shifting field for causing the molten metal A to flow. Thus, not only the conduit 1 can be induction-heated beforehand but also cooling and solidification of the molten metal A can be prevented.


Inventors:
HOSHIKA HARUO
YAMASHITA TAKASHI
Application Number:
JP1986000214939
Publication Date:
April 04, 1988
Filing Date:
September 11, 1986
Export Citation:
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Assignee:
SHINKO ELECTRIC CO LTD
International Classes:
H02K44/06; (IPC1-7): H02K44/06



 
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