Apparatus for joining ceramics by microwave

Electric heating – Metal heating – Of cylinders

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Details

219 1055B, 219 1055M, 264 26, 4251748E, H05B 668

Patent

active

047727705

ABSTRACT:
An apparatus for joining two ceramics using microwave energy, having a cavity resonator in which the ceramics are placed; a microwave-generator means for producing microwave radiation to be introduced into the cavity resonator; a pressurizer for pressing the joining surfaces of the ceramics against each other; and a temperature controller for controlling the temperature distribution of the ceramics in such a way that the temperature of the ceramics at the joining surfaces is highest and rapidly decreases toward the unjoined ends of the ceramics is disclosed. The microwave-generator may include a microwave oscillator, a klystron amplifier, and an isolator. The temperature controller can be a dielectric heater or a combination of a dielectric heater and a temperature difference-producer.

REFERENCES:
patent: 3704523 (1972-12-01), Guerga et al.
patent: 3765985 (1973-10-01), Siard et al.
patent: 4100386 (1978-07-01), Bardet
patent: 4147911 (1979-04-01), Nishitani
patent: 4456806 (1984-06-01), Arimatsu
patent: 4529857 (1985-07-01), Meek et al.

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