Composite Solutions Reinforcement Guide - OCV Reinforcements
Composite Solutions Reinforcement Guide - OCV Reinforcements
Composite Solutions Reinforcement Guide - OCV Reinforcements
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proCess nAme desCription tYpiCAl mArkets produCts used<br />
injection molding injection molding is a closed-molding process where Automotive, building products, electrical & Chopped strands, multi-end roving,<br />
filled or unfilled polymer resins are injected into electronics, sports & recreation long fiber thermoplastics (lft) type<br />
closed matched-metal molds. polymers are commonly<br />
30<br />
thermoplastic, & processed by heating the raw<br />
polymer in pellet form to melt point & injecting<br />
it into the cooled mold. thermosets such as Bulk<br />
molding Compounds (BmC) are also used - they are<br />
injected into heated molds to effect the cross linking<br />
& cure. for higher strength parts, fillers, milled &<br />
chopped fibers are blended into the resin with a<br />
screw-type extruder. long fiber thermoplastics (lftp)<br />
have a longer fiber length that further improves<br />
strength - increasingly important in the appliance &<br />
automotive fields.<br />
® single-end roving, milled fibers,<br />
chopped strands<br />
lamination some manufacturers use a continuous process to truck panels, translucent panels for Chopped strand mat, multi-end<br />
produce a 2- to 3-mm thick composite skin that is construction<br />
roving, woven roving, veils &<br />
laminated afterwards on both sides of a core material<br />
twintex<br />
(plywood or foam) to make the complete panel. some<br />
manufacturers produce the complete panel online,<br />
while some refrigerator truck panel manufacturers<br />
use a semi-continuous process in which they laminate<br />
composite skins on both sides of a thick polyurethane<br />
foam core by compression. Continuous molding<br />
between layers of film is used for the continuous<br />
production of sheets, both colored & translucent, in<br />
flat or profiled forms.<br />
® co-mingled glass &<br />
thermoplastic reinforcements<br />
27 <strong>Composite</strong> proCesses
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