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Plastics Equipment ×10 Used Items
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PLASTIC INJECTION MOLDING is a method to obtain molded products by injecting plastic materials molten by heat into a mold, and then cooling and solidifying them. The method is suitable for the mass production of products with complicated shapes, and takes a large part in the area of plastic processing. (pool chemical buckets, aerosol caps, plasticware, legos) BLOW MOLDING is a process for forming plastic objects in which plastic is melted, put in a mold, and then shaped by having compressed air blown into it. (Water bottles, shampoo bottles, orange barrels/cones) EXTRUSION is a process of converting a solid plastic mass, pellet or powder into a melted form where it is pushed through a die into a shape. This shape is then moved through various secondary operations where it is cooled then cut, coiled or experiences a variety of other possible operations. (PVC water and sewer pipes, plastic tubing for oxygen, drinking straws) There is a uniqueness to each primary process. Extrusion is continuous, injection molding is discontinuous and blow molding would also be considered continuous.