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  2. Nurdle (bead) - Wikipedia

    en.wikipedia.org/wiki/Nurdle_(bead)

    [1] [2] These microplastics are made primarily from polyethylene, polypropylene, polystyrene, polyvinyl chloride, and other plastics or synthetic resins. [3] Nurdles are the building block, via plastic extrusion or injection molding, for items for everyday life including plastic water bottles, containers, and bags. [4] An example of nurdles

  3. Injection moulding - Wikipedia

    en.wikipedia.org/wiki/Injection_moulding

    Injection moulding (U.S. spelling: injection molding) is a manufacturing process for producing parts by injecting molten material into a mould, or mold. Injection moulding can be performed with a host of materials mainly including metals (for which the process is called die-casting ), glasses , elastomers , confections , and most commonly ...

  4. Plastic extrusion - Wikipedia

    en.wikipedia.org/wiki/Plastic_extrusion

    The feeds may be pellets, powder and/or liquids, but the product is usually in pellet form, to be used in other plastic-forming processes such as extrusion and injection molding. As with traditional extrusion, there is a wide range in machine sizes depending on application and desired throughput.

  5. Long-fiber-reinforced thermoplastic - Wikipedia

    en.wikipedia.org/wiki/Long-fiber-reinforced...

    LFRT components or semi-finished products are made by compression or injection molding. Fibers are contained in the polymer matrix, often in the form of a granulate raw material. [2] Long Fiber Reinforced Thermoplastic Compounds are typically 10–12 mm in length. Fiber is unidirectional along the length of the 12 mm pellet.

  6. Injection mold construction - Wikipedia

    en.wikipedia.org/wiki/Injection_mold_construction

    Injection mold construction is the process of creating molds that are used to perform injection molding operations using an injection molding machine. These are generally used to produce plastic parts using a core and a cavity. Molds are designed as two-plate or three-plate molds, depending on the type of component to be manufactured.

  7. Multi-material injection molding - Wikipedia

    en.wikipedia.org/wiki/Multi-material_injection...

    Multi-material injection molding (MMM) is the process of molding two or more different materials into one plastic part at one time. [1] As is the case in traditional injection molding, multi material injection molding uses materials that are at or near their melting point so that the semi-liquidous material can fill voids and cavities within a pre-machined mold, thus taking on the desired ...

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