Method of forming slide gate valve parts

Details Method of forming slide gate valve parts Method of forming slide gate valve parts

1979-03-06

1980-08-19

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 85, C04B 3504

Patent

active

042182565

ABSTRACT:
Upper and lower plates, as well as other parts, for a slide gate valve are formed by casting into a mold, preferably a metal mold, a castable refractory composition containing from 1 to 5% of a long chain glassy polyphosphate, preferably one having an average chain length of about 20 phosphorous atoms, from 0.1 to 0.5% boric acid, the balance of the castable being sized periclase refractory grain.

REFERENCES:
patent: 3960580 (1976-06-01), Stierli et al.

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