Process for annealing heat fused cast refractory product

Details Process for annealing heat fused cast refractory product Process for annealing heat fused cast refractory product

1981-04-09

1983-05-17

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Disparate treatment of article subsequent to working,...

Effecting temperature change

264332, B29C 102

Patent

active

043839630

ABSTRACT:
A process for annealing a heat fused cast refractory product casts a molten refractory material in a mold which is held in a heat insulating material as an annealing medium, said mold being held in said packed heat insulating material which has a thermal conductivity ranging from 0.04 to 0.3 Kcal/m. hr. .degree.C. (at 200.degree. C.) as a heat insulating property and a contraction coefficient of up to 45% under a pressure of 50 Kg/cm.sup.2 as a mechanical strength for supporting a mold.

REFERENCES:
patent: 2079101 (1937-05-01), Benner et al.
patent: 2154153 (1939-04-01), Easter et al.
patent: 3233994 (1966-02-01), Penberthy
patent: 3599281 (1971-08-01), Boyer
patent: 4159359 (1979-06-01), Gervais
patent: 4209478 (1980-06-01), Wooten

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