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Pultrusion pulls a variety of reinforced fibers, wetted by thermosetting and/or some thermoplastics resins, through a heated die. |
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| Pultrusions | |
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| Pultrusion Process Diagram | |
| Pultrusion is similar to extrusion in that it produces continuous cross-sectional profiles. While extrusion relies on press to push unreinforced thermoplastic materials through a short die, pultrusion pulls a variety of reinforced fibers, wetted by thermosetting and/or some thermoplastic resins, through a heated die. Polymerization of the resin occurs as the wetted fibers pass through the die, forming a continuous, rigid profile corresponding to the orifice shape. | |
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