Method of manufacturing fiber gypsum board

Details Method of manufacturing fiber gypsum board Method of manufacturing fiber gypsum board

1990-08-23

1994-08-30

Ball, Michael W.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

106711, 106780, 106783, 156 42, 269113, 269115, 269120, 269333, 427403, B28B 152, B28C 540, B32B 3120

Patent

active

053425669

ABSTRACT:
A method and apparatus for producing gypsum board. The method includes the steps of mixing a predetermined amount of fibers, absorbent, and water to form a mixture of wetted, loose fibers, mixing the wetted fibers with predetermined amount of dry calcined gypsum, forming the mixture into a matt having a substantially uniform consistency and compressing the matt to form a board composed of bonded fibers and gypsum. The resulting board has a smooth exterior and can be a homogeneous or a multilayer board.

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