Usebenza Kanjani Umshini Wepulasitiki Wokukhipha?

I-plastic extrusion, eyaziwa nangokuthi i-plasticating extrusion, iyinqubo eqhubekayo yokukhiqiza umthamo ophezulu lapho impahla ye-thermoplastic - esesimweni sempushana, ama-pellets noma ama-granulate - incibilika ngendlela efanayo bese ikhishwa ekubunjweni kufa ngendlela yengcindezi.Ku-scrusion yesikulufu, ingcindezi ivela ekuzungezweni kwesikulufu ngokumelene nodonga lombhobho.Njengoba incibilika yepulasitiki idlula ku-die, ithola ukwakheka kwembobo yokufa bese ishiya i-extruder.Umkhiqizo okhishiwe ubizwa ngokuthi i-extrudate.

I-extruder ejwayelekile iqukethe izindawo ezine:

Indawo yokuphakelayo

Kule ndawo, ukujula kwendiza akushintshi.Ibanga eliphakathi kobubanzi obukhulu phezulu kwendiza kanye nedayamitha encane yesikulufu esingaphansi kwendiza ukujula kwendiza.

I-Transition Zone noma Indawo Yokucindezela

Ukujula kwendiza kuqala ukuncipha kule zoni.Eqinisweni, impahla ye-thermoplastic iyacindezelwa futhi iqala ukwenza ipulasitiki.

Indawo Yokuxuba

Kule ndawo, ukujula kwendiza kuphinde kube njalo.Ukuqinisekisa ukuthi impahla incibilike ngokuphelele futhi ixubene ngendlela efanayo, kungase kube khona isici esikhethekile sokuxuba.

I-Metering Zone

Le ndawo inokujula kwendiza okuncanyana kunasendaweni exutshwayo kodwa ihlala injalo.Futhi, ingcindezi iphusha ukuncibilika ngokufa kokuma kule ndawo.

Ngakolunye uhlangothi, ukuncibilika kwengxube ye-polymer kubangelwa izici ezintathu ezinkulu:

Ukudlulisa Ukushisa

Ukudlulisa ukushisa amandla adluliswa esuka ku-extruder motor aye ku-extruder shaft.Futhi, ukuncibilika kwe-polymer kuthintwa iphrofayili yesikulufa nesikhathi sokuhlala.

Ukungqubuzana

Lokhu kulethwa ukungqubuzana kwangaphakathi kwempushana, iphrofayela yesikulufu, isivinini sesikulufu, nezinga lokuphakelayo.

I-Extruder Barrel

Izilawuli zokushisa ezizimele ezintathu noma ngaphezulu zisetshenziselwa ukugcina izinga lokushisa lemiphongolo.