Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1992-08-12
1993-11-30
Yuen, Henry C.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
432144, 432246, F27B 902
Patent
active
052660273
ABSTRACT:
The roller-hearth continuous furnace of the present invention comprises a tunnel-shaped furnace housing provided with a larger number of rollers shielded from outside, the inside of the furnace being divided into a heating section, a soaking section and a cooling section in this order with the heating section located close to the inlet of the furnace housing. The cooling section has a means for feeding of atmosphere-controlling gas and a means for detection of furnace inside pressure. The heating section has a means for forced gas exhaustion, capable of sucking a furnace inside gas correspondingly to the furnace inside pressure detected by said means for detection of the pressure. The present roller-hearth continuous furnace having the above constitution ensures cooling in a stable atmosphere and can provide household or industrial ceramic wares of stable quality.
REFERENCES:
patent: 3947237 (1976-03-01), Leisenberg
patent: 4569658 (1986-02-01), Wiggins et al.
patent: 4627814 (1986-12-01), Hattori et al.
patent: 4773851 (1988-09-01), Mueller
NGK Insulators Ltd.
Yuen Henry C.
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