extrusion screw

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• Extrusion — is a process used to create objects of a fixed cross sectional profile. A material is pushed or drawn through a die of the desired cross section. The two main advantages of this process over other manufacturing processes is its ability to create… …   Wikipedia

• Extrusion moulding — is a manufacturing process used to make pipes, hoses, drinking straws, curtain tracks, rods, and fibres.The machine used to extrude materials is very similar to an injection moulding machine. A motor turns a screw which feeds granules of plastic… …   Wikipedia

• Screw cap — A screw cap or closure is a common type of closure for bottles, jars, and tubes. Common screw closures: Plastic bottle with plastic screw cap, Dispensing closure for salad dressing (with inner seal), Break away closure for syrup, Dispensing pump… …   Wikipedia

• extrusion — /ik strooh zheuhn/, n. 1. the act of extruding or the state of being extruded. 2. something that is extruded. [1530 40; < ML extrusion (s. of extrusio), equiv. to L extrus(us) (ptp. of extrudere to EXTRUDE) + ion ION] * * * Process in which metal …   Universalium

• Plastics extrusion — Cross section of a plastic extruder to show the screw Plastics extrusion is a high volume manufacturing process in which raw plastic material is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weather… …   Wikipedia

• Reciprocating screw machinery — is used for the extrusion blow molding of hollow containers. Examples of parts manufactured from these machines include lightweight HDPE bottles for dairy and water, as well as large 3 5 gallon polycarbonate bottles for water coolers. Description …   Wikipedia

• Archimedes' screw — was operated by hand and could raise water efficiently …   Wikipedia

• Briquette — Some charcoal briquettes Ogata …   Wikipedia

• Spinning (polymers) — Spinning is manufacturing process for creating polymer fibers. It is a specialized form of extrusion that uses a spinneret to form multiple continuous filaments. There are four types of spinning: wet, dry, melt, and gel spinning.[1] Contents 1… …   Wikipedia

• plastic — plastically, plasticly, adv. /plas tik/, n. 1. Often, plastics. any of a group of synthetic or natural organic materials that may be shaped when soft and then hardened, including many types of resins, resinoids, polymers, cellulose derivatives,… …   Universalium

• Blow molding — The blow molding process Blow molding (also known as blow moulding or blow forming) is a manufacturing process by which hollow plastic parts are formed. In general, there are three main types of blow molding: extrusion blow molding, injection… …   Wikipedia