Category: Extrusion Process

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The advantages of the extrusion blow molding

1,The cost of the extrusion blow molding machine is cheaper than that of injection molding machine, about one third of the injection blow molding machine. 2,On blowing molding, the preform is formed under low pressure through the extrusion equipment heat, in this circumstance, the residual stress of the products is small. With its good performance […]

Crosshead Extrusion

Crosshead Extrusion Process (Wire & Cable Coating)

Crosshead extrusion process is widely used to coat wires and cables with a polymer. The basic procedure includes pulling of the wire / cable to be coated at a uniform rate via a crosshead die, where it is covered with the molten plastic. This extrusion process for coating is used in most wires and cables […]

Rod Extrusion Machine

Extrusion Process

Extrusion Process begins by heating the stock material (for hot or warm extrusion). It is then loaded into the container in the press. A dummy block is placed behind it where the ram then presses on the material to push it out of the die. Afterward the extrusion is stretched in order to straighten it. […]

Ram Extrusion Process

Extrusion Reprocessing

The term extrusion reprocessing refers to the minimizing of the scrap generation and recapturing of the material value in most of the operations. In almost all types of extrusion processes, it is a common practice to grind up the scrap materials by using granulator or allied suitable equipment. With the usage of this equipment, such granules […]

Rod Extrusion Machine

Twin screw extrusion technology

How does extrusion work? Extrusion processing aims to physico-chemically transform continuously viscous polymeric media and produce high quality structured products thanks to the accurate control of processing conditions. Twin screw extruders consist of two intermeshing, co-rotating screws mounted on splined shafts in a closed barrel. Due to a wide range of screw and barrel designs, […]

Tube Extrusion

Injection Moulding Process – Injection Moulding Machines

Injection moulding is a two step cyclical process: (a) melt generation by a rotating screw, and (b) Žfilling of the mouldwith molten polymer by the forward ramming of the screw (called a reciprocating screw), followed by a very short packing stage necessary to pack more polymer in the mould to offset the shrinkage after cooling […]

Ram Extrusion Process

Multi-hole Ram Extrusion Process

Multi-hole ram extrusion is the process in which the raw material is pushed through a die having more than one hole. This process is highly productive for producing parts of smaller length and cross-section. For the given billet and final product size, the requirement of the ram force is lesser in the multi-hole extrusion than […]

Plastic Extrusion Process

Plastic Extrusion Screw Design and Types of Extrusion Process

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, weatherstripping, fencing, deck railings, window frames, plastic films and sheeting, thermoplastic coatings, and wire insulation. SCREW DESIGN: The design of screw is important for plastic processing. It has mainly three […]