Polymer Injection Molding
From the first synthetic billiard balls to current biocompatible implants and aerospace metal replacements, polymeric materials have come a long way in the 100+ years since their first formulation. Today a myriad of materials is available to suit nearly every application, and when an off-the-shelf solution is inadequate, PTI Tech will custom formulate one that does.
From commodity plastics to highly engineered resins, PTI Tech is a leader in the analysis, selection, formulation, custom compounding, processing, and molding of plastics for precision high-performance applications. Some polymeric material highlights:
- Engineering Resins: PEEK, PEI (Ultem™,) PPSU (Radel®,) Acetal (Delrin®) PPA (Amodel®,) PPS, PEKEEK, PLA, PMMA (acrylic,) PVOH, PVA, POM, PES, PMP, PBT
- Ionomer Industrial Resins: PC, ABS, PC-ABS, PVDF, EVA, CPVC, Tefzel™, TPE, HDPE, Nylon
- Commodity Resins: PP, PS, PE, PET, LDPE
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Process
Highly efficient, net shape polymer injection molding process includes the following:
- Formulation, compounding, and extrusion of polymer pellets
- Drying, then melting of the polymer pellets
- Shear and compression of the injection molding machine screw to liquefy the polymer at high pressure
- Injection of molten polymer at high pressure (5,000-20,000 PSI) into mold tooling
- Cooling and ejection of molded polymer components
