Process for manufacture of refractory hard metal containing...

Details Process for manufacture of refractory hard metal containing... Process for manufacture of refractory hard metal containing...

C - Chemistry, Metallurgy

25

C

261/25, 204/195.

C25C 3/08 (2006.01) C04B 35/56 (2006.01) C04B 35/58 (2006.01)

Patent

CA 1230895

IMPROVED PROCESS FOR MANUFACTURE OF REFRACTORY HARD METAL CONTAINING PLATES FOR ALUMINUM CELL CATHODES Abstract of the Disclosure This invention relates to a method for the preparation of improved tiles or plates of enhanced density, freedom from defects, chemical and mechanical resistance, and increased longevity in service, for use as aluminum-wettable cathode surfaces for aluminum reduction cells. A mixture of Refractory Hard Material, carbonaceous filler, carbonaceous additive, and thermosetting binder system is subjected to vacuum during mixing so as to achieve a specified penetration depth as measured by ASTM standard C 360-63. The mixed composition is then molded, cured, and baked to form elements of the desired configuration.

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