ARC MELTING FURNACE AND ARC MELTING METHOD FOR SUBSTANCE TO BE MELTED

Title:

ARC MELTING FURNACE AND ARC MELTING METHOD FOR SUBSTANCE TO BE MELTED

Document Type and Number:

WIPO Patent Application WO/2013/065378

Kind Code:

A1

Abstract:

The purpose of the invention is to provide an arc melting furnace and an arc discharge control method with which a melted substance that has been melted efficiently can be stirred without causing workers an enormous amount of labor. The furnace is provided with: a mold (3) that is set inside the melting chamber (2) and has a depression (3a); a non-consumable discharge electrode (5), which heats and melts a substance to be melted that is held in the depression (3a); a power source unit (10) that supplies electric power to the non-consumable discharge electrode (5); and a control device (11) that controls the output intensity of the arc discharge from the non-consumable discharge electrode by controlling the power source unit. The control device (11) changes the output intensity of the arc discharge from the non-consumable discharge electrode (5) and stirs the molten metal, which results from heating and melting the substance to be melted, by controlling the output current from the power source unit (10) and the frequency of said current.

Inventors:

KAMEYAMA MOTOHIRO (JP)
KAWAI YOSHIAKI (JP)
YOKOYAMA YOSHIHIKO (JP)
INOUE AKIHISA (JP)

Application Number:

PCT/JP2012/070338

Publication Date:

May 10, 2013

Filing Date:

August 09, 2012

Export Citation:

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Assignee:

DIAVAC LTD (JP)
TOHOKU TECHNO ARCH CO LTD (JP)
KAMEYAMA MOTOHIRO (JP)
KAWAI YOSHIAKI (JP)
YOKOYAMA YOSHIHIKO (JP)
INOE AKIHISA (JP)

International Classes:

B22D27/02; C22B9/20

Domestic Patent References:

WO2011155155A1

2011-12-15

Foreign References:

JP2007160385A	2007-06-28
JPS63130269A	1988-06-02
JP2000317621A	2000-11-21
JP2007160385A	2007-06-28

Other References: