ARC MELTING FURNACE APPARATUS AND METHOD OF ARC MELTING MELT MATERIAL
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United States of America Patent
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Issued Date -
Nov 6, 2014
app pub date -
Aug 9, 2012
filing date -
Nov 2, 2011
priority date (Note) -
Abandoned
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Abstract
The Present invention provides an arc melting furnace apparatus and a method of controlling arc discharge, in which a melt material having been melted can be stirred efficiently, avoiding labor intensive work. The furnace is provided with a mold 3 having a recess 3a and provided in a melting chamber 2, a non-consumable discharge electrode 5 for heating and melting a melt material accommodated in the recess 3a, a power source unit 10 for supplying electric power to the non-consumable discharge electrode 5, and a control device 11 which controls the power source unit to control output intensity of the arc discharge from the non-consumable discharge electrode. The control device 11 controls output current from the power source unit 10 and its current frequency to vary the output intensity of the arc discharge from the non-consumable discharge electrode 5 and stir a molten metal resulting from heating and melting the melt material.
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