COOKING EQUIPMENT OF PREFORMS IN CERAMICS REQUIRING GREAT PRECISION

摘要

The invention relates to equipment for sintering ceramic solid pieces (12) comprising a microwave cavity (1) and a crucible (11) associated with a porous refractory ceramic crucible holder and a susceptor (17, 27) producing infrared radiation under the action of microwave radiation. a) Said cavity is a multimode microwave cavity coupled by a waveguide to a microwave generator operating at a frequency of 2.45 GHz. b) Said support consists of independent porous refractory ceramic parts comprising: - a base (13) - at least two axially symmetrical axially symmetrical rings (14, 15), c) said crucible (11) has a tubular envelope closed by a bottom covered with millimetric balls, said crucible (11) being adapted to be disposed inside the inner ring (15), d) said susceptor material (11) is disposed between the wall of said inner ring (15) and the wall of said crucible (11).