Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1977-06-24
1979-01-09
Envall, Jr., R. N.
Metal founding
Process
Shaping liquid metal against a forming surface
13 33, 164 83, 164252, F27B 1904, F27D 1500
Patent
active
041339673
ABSTRACT:
A conventional electric arc furnace is provided with an outlet in a sidewall of the furnace, the inner and outer ends of which are positioned such that the outer end of the outlet is higher than the inner end of the outlet. The outer end of the outlet communicates directly with a graphite electrode having a hollow interior leading from the sidewall of the electric arc furnace to an electroslag furnace positioned below the electric arc furnace. After an initial charge of ore in the electric arc furnace is brought to the molten state with the slag floating on top of the molten metal, the level of molten metal is maintained above the inner end of the slanted outlet and caused to flow through the slanted outlet and hollow graphite electrode to the electroslag furnace. In the electroslag furnace, the molten metal solidifies on a movable base plate positioned at the bottom of the furnace which is slowly withdrawn out of the bottom of the electroslag furnace, thereby continuously forming the desired steel ingot.
REFERENCES:
patent: 3610795 (1971-10-01), Antoine
patent: 3627293 (1971-12-01), Sperner
patent: 3768998 (1973-10-01), Yonemochi
Hundley Gary L.
Jordan Ronald R.
Nafziger Ralph H.
Brown William S.
Envall, Jr. R. N.
Gardiner Donald A.
The United States of America as represented by the Secretary of
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