Pressing process for composite wood panels

Details Pressing process for composite wood panels Pressing process for composite wood panels

1984-04-13

1985-05-14

Wityshyn, Michael

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

156 622, 156285, 156296, 156312, 264102, 264109, 264120, B29J 502

Patent

active

045171475

ABSTRACT:
An improved hot gas pressing system for use in manufacturing wood-based composite panels reduces in-press time substantially while reducing blistering, pitting, and warping in the final panel. Condensable steam as the preferred gas is injected into both faces of the mat after the press closes to an intermediate position compressing the mat to an intermediate density. After the steam is applied for a predetermined time period at the intermediate density quickly raising the mat temperature, a steam through step is applied after which the press is closed to its final position. Steam is reapplied to both surfaces of the densified mat to maintain temperature further reducing cure time of the adhesive after which venting and vacuum steps are applied to both surfaces of the mat to reduce internal pressure and remove moisture from the mat prior to opening of the press.

REFERENCES:
patent: 3230287 (1966-01-01), Caron et al.
patent: 3280237 (1966-10-01), Corbin et al.
patent: 3891738 (1975-06-01), Shen
patent: 4273981 (1981-06-01), Nopper
patent: 4316865 (1982-02-01), Battigelli et al.
patent: 4379101 (1983-04-01), Smith
patent: 4393019 (1983-07-01), Geimer

Affiliated with

Also associated with

Rating

Pressing process for composite wood panels does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressing process for composite wood panels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressing process for composite wood panels will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-767846