Melting furnace for producing strand-cast ingots in a protective

Details Melting furnace for producing strand-cast ingots in a protective Melting furnace for producing strand-cast ingots in a protective

1988-02-19

1989-04-18

Godici, Nicholas P.

Metal founding

Means to directly apply electrical or wave energy to work

In continuous casting apparatus

164256, 164258, 164420, B22D 1104, B22D 1110, B22D 2715

Patent

active

048217913

ABSTRACT:
Melting furnace (1) for the production of strand-cast ingots (17, 18) in a protective gas atmosphere, has a charging apparatus (8) for feeding starting material (11) into a melting area (14). Within a melting chamber provided with a chamber floor (2d) and at least one energy source (4,5) there is situated a strand-casting mold (15) for the transformation of the melt to an ingot (17, 18) and underneath the strand-casting mold is disposed an offbearing apparatus (25) for offbearing the ingot, and an offbearing chamber enveloping the ingot and the offbearing apparatus. To solve the problem of operating such a melting furnace virtually continuously, the strand-casting mold (15) together with at least one additional strand-casting mold (16) is disposed in the chamber flow (2d) in such a manner that each of the strand-casting molds (15, 16) can be brought into the drop path of the melt by a preferably horizontal relative movement. Furthermore, one offbearing apparatus (25, 26) and one offbearing chamber (23, 24) are associated with each strand-casting mold, and at least one vacuum valve (19, 20) is disposed between each strand-casting mold (15, 16) and the offbearing chamber (23, 24) associated with it. Preferably the strand-casting molds (15, 16) are disposed in a chamber floor (2d) configured as a turning disk.

REFERENCES:
patent: Re27945 (1974-03-01), Hunt et al.
patent: 3237254 (1966-03-01), Hanks et al.
patent: 3273212 (1966-09-01), Garmy et al.
patent: 3388903 (1968-06-01), Accary et al.
patent: 3821979 (1974-07-01), Paton et al.
patent: 4027722 (1977-06-01), Hunt
patent: 4730661 (1988-03-01), Stephan
"Elektronenstrahl-Schmelzanlagen N6", 1966, p. 62 of W. C. Heraeus GmbH.

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