Extrusion processing

TONY

Extruded plastic extrusion processing, also known by hydraulic pressure in the non-rubber processing extruder to said extrusion mold itself pushed out. Refers to the mechanism of action of the material through the extruder barrel and the screw between the side heat plasticizing screw edges are pushed forward continuously made a processing method or semi-finished products of various cross-section through the nose.

In the chemical industry is also useful fiber extruder feed to spinnerets for melt spinning. Extrusion applied thermoplastics and rubber processing, ingredients, granulation, plastic materials such as filtration, continuous production, the manufacture of various products such as continuous tubes, profiles, sheet (or sheets), film, wire and cable package cover, rubber tire noodles, inner tubes tire tube, sealing strips, high production efficiency. In the production of synthetic resin, the extruder can be used as reactor, continuous polymerization and forming complete compression ratio in the rubber industry can be used in different extruders mastication of natural rubber compression extrusion machines of different materials than some different.

Principle:

Material from the hopper into the barrel, the rotation of a screw, and the screw through the barrel inner wall surface frictional shearing forwarded to the feed zone where loose conveyed forward while being compacted solid; in the compression section, the depth of groove lighter, more compact, while heating and screw and barrel inner wall of the friction shear material temperature rise starts to melt at the end of the compression section of the outer cylinder; homogenization section so that the material uniform, constant temperature, quantitative, constant pressure extrusion melt to die after forming, shaping get product

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