To carry out the heating of refractory formed of a binder containing carbon by the irradiation of microwave more efficiently than heretofore.
The carbon-containing refractory 21 is housed in an insulation box 2 having ventilation characteristic in a heat treatment furnace main body 3 and heat insulating material powder 4 is charged in a space between the carbon-containing refractory 21 and the heat insulation box 2. The carbon-containing refractory 21 generates heat to be heat-treated by irradiating the heat insulation box 2 with the microwave from a microwave oscillator 11. A volatile component containing carbon released from the carbon-containing refractory 21 by the heating is formed into carbon to be deposited on the heat insulating material powder 4 and is combusted and removed by the absorption of energy of the microwave.
| JP2006199571A | 2006-08-03 | |||
| JP2000272973A | 2000-10-03 | |||
| JPH07247170A | 1995-09-26 | |||
| JPH06263547A | 1994-09-20 |
Miaki Kametani
Koji Hagiwara