Refractory article suitable for casting molten metal

Details Refractory article suitable for casting molten metal Refractory article suitable for casting molten metal

1985-10-31

1987-01-06

Lechert, Jr., Stephen J.

Compositions: ceramic

Ceramic compositions

Refractory

75257, 106240, 106313, 148 23, 148 24, 148 26, 264 60, 264 63, 264332, 501105, 501127, C04B 3552

Patent

active

046346856

ABSTRACT:
A refractory article for casting of liquid melts, especially steel, fabricated from a mixture of Al.sub.2 O.sub.3, graphite, a flux component, a synthetic resin binder and a metallic powder. The flux component contains a first flux with a melting point from 550.degree. to 900.degree. C. and a second flux that becomes active in the mixture in a temperature ranging from 1350.degree. and 1550.degree. C. The refractory article need not be heated before use, and the carbon contained therein, which determines the strength of the article, is retained for a much longer period during use, so that the article will have a long service life.

REFERENCES:
patent: 3934637 (1976-01-01), Potier
patent: 3937269 (1976-02-01), Salvadore et al.
patent: 3949803 (1976-04-01), Hiroishi et al.
patent: 4040469 (1977-08-01), Potier et al.
patent: 4174226 (1979-11-01), Fitzpatrick et al.
patent: 4540675 (1985-09-01), Morris et al.

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