Low temperature setting refractory cements

Details Low temperature setting refractory cements Low temperature setting refractory cements

1976-02-03

1977-11-29

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 44, 106 58, 106 62, 106 65, C04B 3510, C04B 3556, C04B 3518, C04B 3504

Patent

active

040604241

ABSTRACT:
Refractory materials with high sintering temperatures are made suitable for use as low temperature setting dry vibration cements, ramming cements, gunning cements, and the like by incorporation therein of up to 4% boric acid and a low temperature softening glass or frit. The lower temperature softening frit is finely ground and uniformly mixed with a refractory grain or aggregate. When the mixture is subjected to a temperature as low as 350.degree. C, the frit softens and bonds the refractory grain into a monolithic structure which retains its integrity up to and through the elevated temperatures at which the refractory grains sinter and other high-temperature ceramic bonds form.

REFERENCES:
patent: 3019116 (1962-01-01), Doucette
patent: 3190769 (1965-06-01), Vasilos
patent: 3257217 (1966-06-01), Van Dreser et al.
patent: 3361583 (1968-01-01), Elarde et al.
patent: 3509072 (1970-04-01), Barrington et al.
patent: 3753744 (1973-08-01), Komaru et al.

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