Patent ID: 9663406
Date: 2017-05-30
CPC Classifications: C04B,F27B,Y02P

Claim:
1. An apparatus for forming a body of silicon carbide, comprising: a housing providing a plurality of chambers each of which is constructed to receive a body of porous carbon, be sealed closed and discharge a received body, the housing configured to flush air from a first of said chambers upon receiving said body; means for heating said body in said first chamber upon having flushed the air therefrom, at a first temperature and a first pressure; a first lock between said first chamber and a second of said chambers configured to open once a predetermined negative pressure in said first chamber is reached, wherein the second chamber includes a siliconizing device having: a second lock between said second chamber and a third of said chambers; means for heating said body impregnated in said second chamber, in said third chamber, at a third temperature greater than said second temperature, to anneal said body; a third lock between said third chamber and a fourth of said chambers; means for cooling said body in said fourth chamber; and means for transporting said body successively to and through said chambers and said locks.