Preheating particles in manufacture of pressed board

Details Preheating particles in manufacture of pressed board Preheating particles in manufacture of pressed board

1997-01-17

1998-03-31

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156296, 156350, 264109, 264DIG65, B27N 100, B27N 310

Patent

active

057333963

ABSTRACT:
In order to preheat a particle mat having upper and lower faces and edges to a predetermined desired temperature for pressing into a pressed board air is conditioned to a temperature below 100.degree. C. and a moisture content together imparting to the conditioned air a dew point generally equal to the desired temperature. This conditioned air is simultaneously introduced from above and below at the same rate into the respective faces of the mat to produce in the mat a pair of horizontal and vertically approaching fronts at which moisture condenses out of the conditioned air. Introduction of the conditioned air into the mat is ended when condensed moisture and the conditioned air are forced out of the edges of the mat.

REFERENCES:
patent: 4945652 (1990-08-01), Clarke et al.
patent: 5063010 (1991-11-01), Fisher et al.

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