Method for drying ceramic tape

Details Method for drying ceramic tape Method for drying ceramic tape

1974-10-03

1976-04-27

Reynolds, Bruce A.

Electric heating

Metal heating

Of cylinders

34 1, 219 1055A, H05B 906

Patent

active

039537030

ABSTRACT:
In the manufacture of ceramic products by the tape casting process faster drying rates result from subjecting the layer of cast ceramic slip to high frequency electromagnetic energy evenly distributed along at least the initial portion of the length of a drying chamber and of sufficient intensity to heat the slip to a uniform cross-sectional temperature above the evaporation temperature of the solvent. The high frequency energy, preferably in the microwave range, raises the temperature of the cast slip uniformly to evaporate the volatile solvents from the interior without forming a barrier skin on the surface of the layer. For typical slip thickness, tape speed, and solvent composition, energy densities of about 1 watt per square inch will provide an optimum heating rate without boiling the solvent.

REFERENCES:
patent: 3704523 (1972-12-01), Guerga et al.
patent: 3851132 (1974-11-01), Van Koughnett
patent: 3858329 (1975-01-01), Koide et al.
patent: 3859493 (1975-01-01), Peterson

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