Method for drying ceramic tape
US3953703A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Oct 3, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/632
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.