Mat preforming

Resin Transfer Molding Spray-up Hand Lay-up Mat-Preform Compound... [Pg.513]

An improvement in the production of foamed composite-door panels was reported by Schumacher et al (7). The process consists of the use of the SRIM process and a low-viscosity urethane foam system. In addition, vinyl- and glass-mat preform technology and IMR (internal mold release) were employed. The demold time at 75 C was 45 seconds, and molded densities were 400 to 800 g/cm. ... [Pg.170]

Also prepared is mat preforming. It is the usual flat fiber mat that is formed into a shape usually using a set of matched dies (often made of fiber reinforced epoxy). A mat is cut to the correct dimensions and... [Pg.274]

Filament winijing 1 1 Pressure bag 1 Contact 1 1 Pressure bag 1 Mat Preform 1... [Pg.903]

Table 9.71 Basic processing (resin transfer, spray, hand lay-up, mat/preform compression, and...

Design parameter Resin transfer molding Sprayup Hand layup Mat/preform SMC... [Pg.930]

SPRAY-UP HAND LAY-UP MAT/PREFORM SHEET MOLDING COMPOUND... [Pg.266]

Quality (foam mixes better when co-injected with glass roving rather than when injected into a pressed mat preform)... [Pg.152]

It is evident that there are applications where both RRIM and mat preforms are still preferred because of their specific advantages. InterWet has been conceived to fill the gap between the two technologies, and allow for more extended use of reinforcements and fillers in applications where neither RRIM nor mat preforms could be used [31]. [Pg.152]

Table 7-22. Property Comparison and Design Guidelines of Resin-Transfer Molding versus Spray-up Hand Lay-up Mat/Preform and SMC Molding...

Hand lay-up Spray-up Filament winding Dough moulding Mat, Preform Pre-preg. Cold press... [Pg.39]

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