Heating – Heating or heat retaining work chamber structure
Patent
1980-11-24
1982-04-20
Camby, John J.
Heating
Heating or heat retaining work chamber structure
432205, 432249, F27D 100, F67B 504
Patent
active
043256945
ABSTRACT:
A furnace for isostatic hot pressing includes a furnace compartment contained within a pressure chamber, the compartment being surrounded by a insulating sheath, comprising a cup-shaped insulating portion. Such portion comprises a supporting tube of graphite surrounded by a plurality of layers of carbon or of graphite fibers. Convection-preventing layers of graphite foils are disposed between the layers and between the innermost layer and the tube. The layers are maintained pressured against the tube and against one another by a plurality of surrounding graphite strands. A plurality of cover discs of foamed graphite having graphite foils on one side thereof are seated against upper ends of the layers and of the tube, the foils on the discs extending upwardly to lie against the peripheral end walls of the discs.
REFERENCES:
patent: 3708285 (1973-01-01), Scheyer
patent: 3732068 (1973-05-01), Larker
patent: 3775043 (1973-11-01), Johansson et al.
patent: 3993433 (1976-11-01), Isaksson et al.
patent: 4013394 (1977-03-01), Witkin et al.
patent: 4131419 (1978-12-01), Isaksson
patent: 4152111 (1979-05-01), Larker
patent: 4283172 (1981-08-01), Syrakari
ASEA Aktiebolag
Camby John J.
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