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Title:
ELECTRIC HEATING DEVICE
Document Type and Number:
Japanese Patent JP2008241197
Kind Code:
A
Abstract:

To provide an electric heating device capable of maintaining the whole of held molten metal to a uniform temperature by eliminating temperature unevenness due to the locations of molten metal held in an electrically heated holding container.

The electric heating device holds the molten metal in the conductive holding container and carries a current directly to the holding container to heat the molten metal held therein. An agitation coil composed of a plurality of cylindrical coils is disposed surrounding the outer periphery of the holding container, and AC power is applied to the agitation coil to generate the AC magnetic field vertically moving in the holding container to thereby agitate the molten metal in the holding container electromagnetically.


Inventors:
FUJITA MITSURU
MORITA ARIMICHI
WATANABE SUMIO
INAGAKI HIDEKI
TANAKA KAZUSHI
OKADA TAMIO
SASAKI TADAO
NAKABAYASHI MASAOKI
ORIGUCHI SHINJI
KISHIDA RYOICHI
Application Number:
JP2007085044A
Publication Date:
October 09, 2008
Filing Date:
March 28, 2007
Export Citation:
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Assignee:
FUJI ELECTRIC SYSTEMS CO LTD
CHUBU ELECTRIC POWER
NIPPON CRUCIBLE CO
International Classes:
F27D11/02; F27D11/06; F27D27/00; H05B3/00
Domestic Patent References:
JPH06226235A1994-08-16
JPH0320590A1991-01-29
JPH04228414A1992-08-18
JPS58173379A1983-10-12
JPS4523703B1
JPS49305B11974-01-07
JP2006038351A2006-02-09
JP2006024453A2006-01-26
JPS5812515B21983-03-08
Attorney, Agent or Firm:
Iwao Yamaguchi
Kiyoshi Matsuzaki