Induction melting of metals without a crucible

Details Induction melting of metals without a crucible Induction melting of metals without a crucible

1990-04-06

1991-07-23

Seidel, Richard K.

Plastic article or earthenware shaping or treating: apparatus

Means making particulate material directly from liquid or...

By slinger or rotating liquid comminutor

164493, 164513, 219 1043, 219 10491, 219 1079, 264 8, 373139, 4251748R, B22D 2300, B22D 4500, B22F 910, H05B 636

Patent

active

050339486

ABSTRACT:
The solid metal to be melted is placed on a support, within an induction coil which is adapted to provide a greater electromagnetic force towards the lower portion of the quantity of metal. When energy is provided to the coil, the metal melts from the top downward, but the concentration of electromagnetic force towards the bottom of the metal causes the liquid metal to retain a cylindrical shape. When most of the metal is melted, the liquid metal passes through an opening in the support. In a preferred embodiment, the coil is movable relative to the quantity of metal, and at the beginning of the melting process only the top portion of the quantity of metal is disposed within the coil. As the quantity of metal melts, the coil is moved downward. The method may also be used for removing impurities from the quantity of metal.

REFERENCES:
patent: 2495193 (1950-01-01), Wells
patent: 2537289 (1951-01-01), van Embden
patent: 2686865 (1954-08-01), Kelly, Jr.
patent: 2957064 (1960-10-01), Comenetz
patent: 3100250 (1963-08-01), Herczog et al.
patent: 3163523 (1964-12-01), Porter et al.
patent: 3310384 (1967-03-01), Keller
patent: 3351686 (1967-11-01), Gayet et al.

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