Process and device for producing glass fibre mat reinforced...

B - Operations – Transporting – 29 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B29C 70/50 (2006.01) B29C 47/02 (2006.01)

Patent

CA 2159346

A process and device are disclosed for producing glass fibre mat reinforced thermoplastic boards, as well as their advantageous use. Glass fibre mats are impregnated with molten thermoplastics and the composite glass fibre mat is then pressed. At least one of the glass fibre mats (10, 11) runs through the aperture (3', 4') of an impregnation nozzle (3, 4) controllably supplied with molten thermoplastics (26, 28) by extruders (1, 2), forming two streams of molten mass (26', 26" and 28', 28") that are applied at the outlet (27, 28') of the nozzle aperture on the top and on the bottom of the glass mats (10, 11), pre-impregnating the glass fibre mat. These glass fibre mats (30, 30') thus pre-impregnated with thermoplastics runs through a gap (18) between feeding rollers of a double belt press (5), are pre-calibrated then pressed by cooling plates (22, 22') into glass fibre mat reinforced thermoplastic boards (25).

L'invention concerne un procédé de production de plaques thermoplastiques renforcées par mats de fibres de verre, leur utilisation avantageuse, ainsi qu'un dispositif de mise en oeuvre dudit procédé. Les mats de fibres de verre sont imprégnés de matière thermoplastique fondue et les mats composites de fibres de verre sont ensuite comprimés. Au moins un des mats de fibres de verre (10, 11) est conduit à travers le passage (3', 4') d'un ajutage d'imprégnation (3, 4) que des extrudeuses (1, 2) alimentent de manière régulée en matière thermoplastique fondue (26, 28), pour avoir deux courants de matière fondue (26', 26" et 28', 28"), qui sont appliqués à une sortie du passage d'ajutage (27, 27'), sur la face supérieure et la face inférieure des mats de fibres de verre (10, 11), ce qui permet de pré-imprégner les mats de fibres de verre. Les mats de fibres de verre (30, 30') ainsi pré-imprégnés de matière thermoplastique, sont conduits dans l'espace (18) situé entre les cylindres d'entrée d'une presse à double bande transporteuse (5) et sont précalibrés avant d'être comprimés sous pression à l'aide de plaques de refroidissement (22, 22') pour former des plaques thermoplastiques (25) renforcées par mats de fibres de verre.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Process and device for producing glass fibre mat reinforced... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and device for producing glass fibre mat reinforced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for producing glass fibre mat reinforced... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1757083

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.