| 摘要 |
The invention relates to an apparatus for hot-pressing a planar product in a process using microwave heating. The apparatus comprises a constant-volume, box-like microwave resonant cavity divided into two opposed subcavities by an elongated gap suitable for passing therethrough the product (1) to be heated. The product is guided through the gap by conveyor belts (2, 2') of microwave-transparent material. The subcavities are delineated from the conveyor passageway gap by parallel walls of microwave-transparent material, each one of them sealed so as to form a wall of its own subcavity. At least one of the subcavities is pressurized, whereby the sealed wall of the pressurized subcavity is designed to yield under the pressure applied into the subcavity in a direction perpendicular to the product (1) to be pressed.
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