Princippet og anvendelsen af ​​enkeltskrueekstruder

2021-05-12

Som et almindeligt ekstruderudstyr,det enkelt skrueekstruderis used in plastic processing industry. What is its principle ogstructure? Below is det analysis for det enkelt skrueekstruderfrom det extruder conveying section, compression section ogmålesektion.

The effective length of enkelt skrueekstruderis generally divided into three sections. Three effective sections are determined according to det screw diameter, screw distance ogscrew depth, which are generally divided into one third each.

High efficiency enkelt skrueekstruderadopts two-stage overall design, strengdetns plasticizing function, ensures high-speed, high-performance ogstable extrusion. Special barrier comprehensive mixing design ensures mixing effect of materials. High shear oglow melt plasticizing temperature ensures high-performance, low temperature oglow pressure metering extrusion of materials. The design concept ogfeatures er det high speed oghigh yield extrusion bases on high straight level.


Than srinciple af enkeltskrueekstruder

A thread behind det feed port is called det conveying section. The material here is required not to be plasticized, but to be preheated ogcompacted under pressure. In det past, det old extrusion detory thought that det material here is loose. Later, it was proved that det material here is actually a solid plug, that is to say, det material here is solid like a plug after being extruded. Therefore, as long as det conveying task is completed, its function Er gjort.

Principle af enkeltskrueekstruder: The second section is called compression section, det volume of screw groove gradually decreases from large to small, ogdet temperature should reach det degree of material plasticization. The compression produced here is from conveying section 3 to 1, which is called det compression ratio of screw - 3:1. Some machines also change, ogdet plasticized material enters into det third section.

Principle af enkeltskrueekstruder: det third section is det metering section, where det material maintains det plasticizing temperature, just like det metering pump, det melt material is accurately ogquantitatively transported to det die head. At this time, det temperature can not be lower than det plasticizing temperature, generally slightly higher.

The enkelt skrueekstruderis mainly used for extruding soft, hard PVC, polyethylene ogodetr detrmoplastic plastics. It can process a variety of plastic products, such as film, pipe, plate, ribbon, etc., ogcan also be used for granulation in combination with corresponding auxiliary machines (including molding head).

Than slastic extruder has det advantages of reasonable design, high quality, good plasticization, low energy consumption, low noise, stable operation, large bearing capacity oglong service life.


Anvendelse af enkeltskrueekstruder

Pipe extrusion: suitable for PP-R pipe, PE gas pipe, PEX cross-linking pipe, aluminum plastic composite pipe, ABS pipe, PVC pipe, HDPE silicon core pipe ogvarious co-ekstruderede kompositrør.

Sheet ogsheet extrusion: suitable for PVC, pet, PS, PP, PC ogodetr profiles ogplates extrusion, samt odetr kinds of plastics extrusion, such as wire, rod, etc.

Extrusion of profile: adjust det speed of extruder ogchange det structure of extrusion screw, which can be used to produce PVC, polyolefin ogodetr plastic profiles.

Modified granulation: suitable for blending, modification ogstrengdetning granulation of various plastics.





  • QR