Industrial electric heating furnaces – Arc furnace device – Ingot remelting
Patent
1989-08-09
1990-08-21
Envall, Jr., Roy N.
Industrial electric heating furnaces
Arc furnace device
Ingot remelting
373 69, 373 68, F27B 1404, H05B 7102
Patent
active
049512986
ABSTRACT:
A closed remelting furnace 1 includes a vertical furnace axis A-A, an electrode supporting rod 15 for a consumable electrode 23, a furnace body 29 which has a driving mechanism for the electrode supporting rod and several furnace lower portions 6, 7 each of which has an ingot mold 9 including an ingot mold axis K-K. A furnace upper portion 11 and the furnace lower portions can individually, if desired, be aligned by means of a lateral relative movement. Through a sealed passage the electrode supporting rod is passed through a top limiting wall 16 of the furnace upper portion 11. In order to reduce the total height and labor and cost involved in design and construction the furnace upper portion 11 is subdivided in two partial segments 13, 19 along a horizontal separating groove. The upper partial segment 13 is configured so as to be short as compared to the total height of the furnace upper portion and constantly associated with the electrode supporting rod 15 and the lower partial segment 19 can be moved out of the area of the furnace axis A-A by means of transporting device.
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patent: 3246070 (1966-04-01), Wooding
patent: 3665084 (1972-05-01), Samietz
patent: 3912848 (1975-10-01), Randa
Envall Jr. Roy N.
Leybold Aktiengesellschaft
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