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How the nose plates and screens built, its role is to filter the melt and increase the flow resistance, in order to filter out impurities and improve mechanical mastication effect.
Plates, profiles and pipes. 7, compound filter
In the manufacture of thin-walled rubber products, products in order to prevent the occurrence of leaks, leaking, plastic material can contain impurities, usually before adding the vulcanizing agent of rubber extruder filter, which is placed one or more layers of the filters in the nose to filter out impurities in plastics material.
8, tire treads and tubes manufacturing
Tread extrusion points overall and stratified extrusion. Available whole extrusion an extruder to a glue material through a flat die extrusion; also There are two compounds (crown materials and sidewall material) two extruders co-extrusion, in a co-extrusion machine combining into a whole within the first tread. Stratified by extruding the two extruders are two kinds of material extruded rubber tread and sidewall, and then in the heat conveyor belt fit, and by the more active roll disc as a whole. Extrusion and tube extrusion tube similar rear tire tube extruded, by cutting, molding and then fitting. 9, melt spinning
Some viscosity of the resin during melt spinning, molten material commonly used extruder. Good melt material directly through the filter into the spinnerets, or spinning pump into a spinneret. Extrusion blow molding
Blow Molding (also known as blow molding) is closed by means of gas pressure in the mold melt blown parison method of forming a hollow article, is the third most common type of plastic processing methods, but also the rapid development a plastics molding method. Blow molding mold only female mold (die), compared with the injection molding, low equipment cost, strong adaptability, can be good formability (such as low stress), it can be formed with complex undulating curve (shape) of the article .