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Title:
ELECTROMAGNETIC PUMP FOR MOLTEN METAL AND OPERATION METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2009000688
Kind Code:
A
Abstract:

To provide an electromagnetic pump for molten metal which can dispense with a heater wire for heating a pump side duct 1, thereby allowing the diameter of the pump including an inductor to be reduced.

The electromagnetic pump for the molten metal is provided in which a cylindrical pump side duct 1 passing through the molten metal 12 is connected with a cylindrical molten metal feed side duct 1', the outer circumference of the pump side duct 1 has the inductor 5 generating a moving magnetic field inside the duct 1, and a core 2 composed of a magnetic substance and forming a magnetic path for the moving magnetic field generated by the inductor 5 is arranged inside the pump side duct 1, wherein the coil 7 of the inductor 5 disposed around the pump side duct 1 and generating the moving magnetic field inside the duct 1 is a self-heat generation type heater serving also as a heater for the duct 1. In the electromagnetic pump for the molten metal, when the molten metal 12 is not pumped up, downward output reverse to that upon the pumping-up of the molten metal 12 or molten metal feed has been applied to the coil 7 of the inductor 5.


Inventors:
Miura, Kuniaki
Asaha, Makoto
Application Number:
JP2007000160918
Publication Date:
January 08, 2009
Filing Date:
June 19, 2007
Export Citation:
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Assignee:
SUKEGAWA ELECTRIC CO LTD
International Classes:
B22D35/00; B22D17/30; B22D37/00; H02K44/06
Domestic Patent References:
JPH01271055A
JPH01114158U
JP2005517265A
JPS61174193U
Attorney, Agent or Firm:
北條 和由