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    Pultrusion Process

    Pultrusion is a manufacturing process for producing continuous lengths of reinforced polymer structural shapes with constant cross-sections. Raw materials are a liquid resin mixture (containing resin, fillers and specialized additives) and flexible textile reinforcing fibers. The process involves pulling these raw materials (rather than pushing, as is the case in extrusion) through a heated steel forming die using a continuous pulling device.

    Pultrusion Process

    The reinforcement materials are in continuous forms such as rolls of fiberglass mat and doffs of fiberglass roving. As the reinforcements are saturated with the resin mixture (“wet-out”) in the resin bath and pulled through the die, the gelation, or hardening, of the resin is initiated by the heat from the die and a rigid, cured profile is formed that corresponds to the shape of the die.
    While pultrusion machine design varies with part geometry, the basic pultrusion process concept is described in the schematic shown below.

    Molding Process

    Fiberglass molding is a process in which fiberglass reinforced resin plastics are formed into useful shapes. The process usually involves first making a mold and then using the mold to make the fiberglass component.

    Molding Process

    Lamination Process

    Lamination is the technique/process of manufacturing a material in multiple layers, so that the composite material achieves improved strength, stability, sound insulation, appearance, or other properties from the use of the differing materials, such as plastic. A laminate is a permanently assembled object created using heat, pressure, welding, or adhesives.[1] Various coating machines, machine presses and calendering equipment are used.

    Lamination Process

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