Plastic Extrusion, Moulding and Mould Designs (Plasma Films, Acrylic Fabrication,

Description:

Plastic Extrusion, Moulding and Mould Designs (Plasma Films, Acrylic Fabrication, Design, Gas Injection Moulding, Thin Walled Injection Moulding, Injection Moulding, Blow Molding, Extrusion, Transfer Molding, Reinforcements for Thermosets, Welding Plastics, Carving Plastics)

Plastics extrusion is a high-volume manufacturing process in which raw plastic is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weather stripping, fencing, deck railings, window frames, plastic films and sheeting, thermoplastic coatings, and wire insulation.

This process starts by feeding plastic material (pellets, granules, flakes or powders) from a hopper into the barrel of the extruder. The material is gradually melted by the mechanical energy generated by turning screws and by heaters arranged along the barrel. The molten polymer is then forced into a die, which shapes the polymer into a pipe that hardens during cooling.

The moulding process is one of the most important plastic processing operations. It is an important commercial process whereby a resinous polymeric compound is converted into useful finished articles. The origin of this process is dates back about a century to the invention of a plunger type machine. The mould has its own importance, which give the required shapes of the products. The vast growth of injection moulding is reflected dramatically in many types and sizes of equipment available today.

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