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It is pre-dried by using a water-absorbent material such as filter cloth, non-woven fabric or other fiber material, gypsum, porous resin, porous ceramic or other porous solid material or a highly water-absorbing molecular material. When dry, these materials are water-absorbed to remove water that has migrated to their surface and organic components that have agglutinated on the surface, and then sent to dryness.
According to reports, this kind of pre-drying process has good effect, which can eliminate the internal moisture difference of the molded body and the shrinkage of organic components caused by evaporation of water, prevent the formation of cracks, and significantly improve the product quality.
Introducing a new ceramic drying process abroad
In July 2003, a foreign company introduced a new ceramic drying process.