Method of melting metals to reduce contamination from crucibles

Details Method of melting metals to reduce contamination from crucibles Method of melting metals to reduce contamination from crucibles

1976-05-13

1977-06-07

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 10R, 75 84, 266 44, C22B 6002

Patent

active

040280969

ABSTRACT:
Contamination of metals from crucible materials during melting operations is reduced by coating the interior surface of the crucible with a ceramic non-reactive with the metallic charge and disposing a metal liner formed from a portion of the metallic charge within the coated crucible. The liner protects the ceramic coating during loading of the remainder of the charge and expands against the ceramic coating during heat-up to aid in sintering the coating.

REFERENCES:
patent: 2870006 (1959-01-01), Morning
patent: 3660075 (1972-05-01), Harbur
patent: 3773499 (1973-11-01), Melnikov
patent: 3820978 (1974-06-01), Magoteaux
patent: 3917479 (1975-11-01), Sayce

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