Electric heating – Metal heating – Of cylinders
Patent
1990-08-30
1991-04-23
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055R, 264 26, 4251748E, 419 49, H05B 680
Patent
active
050102206
ABSTRACT:
A process and apparatus for heating bodies to high temperatures at high pressures. The process involves locating the body in a chamber capable of acting as a resonant cavity for microwave radiation of a predetermined frequency. The body is then irradiated in the cavity with microwave energy of the predetermined frequency for a time sufficient to raise the temperature of the body to a suitable high temperature. Then, either subsequently or simultaneously, a fluid at high pressure is introduced into the cavity to pressurize the body. The apparatus provides the equipment necessary for the operation of the process. The process and apparatus can be used for sintering and/or hot isostatic pressing of bodies made of ceramic powders and for similar purposes.
REFERENCES:
patent: 2622187 (1952-12-01), Welch
patent: 3335253 (1967-08-01), Jeppson et al.
patent: 3398251 (1968-08-01), Jeppson et al.
patent: 3469053 (1969-09-01), Levinson
patent: 3494724 (1970-02-01), Gray
patent: 3585258 (1971-06-01), Levinson
patent: 3889009 (1975-06-01), Lipoma
patent: 4054672 (1977-10-01), Inoue et al.
patent: 4123230 (1978-10-01), Kirkbride
patent: 4147911 (1979-04-01), Nishitani
patent: 4148614 (1979-04-01), Kirkbride
patent: 4219361 (1980-08-01), Sutton et al.
patent: 4307277 (1981-12-01), Maeda et al.
patent: 4406860 (1983-09-01), Beauvais et al.
patent: 4406861 (1983-09-01), Beauvais et al.
patent: 4409454 (1983-10-01), Beauvais et al.
patent: 4412865 (1983-11-01), Schmidt
patent: 4490597 (1984-12-01), Mengel
patent: 4559429 (1985-12-01), Holcombe
patent: 4772770 (1988-09-01), Matsui et al.
patent: 4775770 (1988-10-01), Fritz
patent: 4938673 (1990-07-01), Adrian
Kimrey, et al., "Techniques for Ceramic Sintering Using Microwave Energy", IEEE Conference Digest, 12th International Conference on Infrared and Millimeter Waves, Orlando, Fla., Dec. 14-18, 1987, pp. 136-137.
Materials Research Society Symposium Proceedings, vol. 124, 1988, pp. 213-218, Tian et al., "Microwave Sintering of Al.sub.2 O.sub.3 --TiC Composites".
Ceramic Engineering and Science Proceedings, vol. 8, Nos. 7-8, 1987, pp. 861-871, Meek et al.-"Microwave Sintering of Al.sub.2 O.sub.3 and Al.sub.2 O.sub.3 --SiC Whisker".
Ceramic Transactions--vol. 1, pp. 933-938, 1987, Tian et al.--"Microwave Sintering of Al.sub.2 O.sub.3 --TiC Composites".
Tian et al.--"Ultrafine Microstructure of Al.sub.2 O.sub.3 Produced by Microwave Sintering"--pp. 925-932--1987.
60-221367-A Japanese Published Patent Application--Abstract only, Nippon Microwave KK, 11-85.
Apte Prasad S.
Pant Aniket
Alcan International Limited
Leung Philip H.
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