Refractories for casting process

Details Refractories for casting process Refractories for casting process

1992-11-16

1994-02-01

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501109, 501121, C04B 3504, C04B 3544

Patent

active

052832155

ABSTRACT:
The present invention relates to a refractory for casting process composed mainly of 0.3 to 10 wt % light burned magnesia, 3 to 30 wt % micro fine calcined alumina, and the remainder of either sintered alumina, fused alumina and MgO-Al.sub.2 O.sub.3 spinel or sintered alumina and MgO-Al.sub.2 O.sub.3 spinel or fused alumina and MgO-Al.sub.2 O.sub.3 spinel.

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