I-twin-screw extruder yahlulwe ibe luhlobo olubandakanyekayo kunye nohlobo olungabandakanyekanga ngokwezikhundla ezihambelana nezikrufu ezimbini.Uhlobo lwe-mesh lwahlulwe lwaba luhlobo lwe-mesh oluyinxenye kunye nodidi olugcweleyo lwe-mesh ngokweqondo le-meshing.I-twin-screw extruder yahlulwe yaba ziindidi ezimbini: isikhonkwane esijikelezayo esifanayo kunye ne-screw ejikelezayo ejikelezayo ngokungqinelana nesikhokelo esijikelezayo.

Ngezantsi, u-Xiaobian uya kukunika isingeniso esifutshane malunga neengxaki zobuchwepheshe ze-twin-screw extruders.

1. Ukwandisa isantya se-screw, esilungele ukubunjwa kwe-bubble, ukukhula kunye nokuphuka, okuluncedo ukunciphisa ubude bokuzaliswa kwezinto kwi-screw groove, ukuphucula umphumo wokuhlaziywa kwendawo yokudlulisa ubunzima, kunye nokuphucula ukusebenza kakuhle kwe-devolatilization. ;nangona kunjalo, isantya esiphezulu esigqithisileyo senza izinto eziphathekayo Ixesha lokuhlala kwicandelo le-devolatilization liyancipha kakhulu, kwaye ukusebenza kakuhle kwe-devolatilization kunokuncipha.

2. Esona santya sikhululo sokujija, isixa sokutya kunye nobushushu obuseti yomphanda zizinto eziphambili eziphembelela inkqubo ye-devolatilization kwi-twin-screw extruder.Ezi zinto zinokuchaphazela ubushushu bezinto eziphathekayo, ukugcwala kwegroove, ixesha lokuhlala kunye nobude obusebenzayo obupheleleyo, ngaloo ndlela kuchaphazela i-devolatilization ngeendlela ezininzi.Kwinkqubo ethile, kukho indawo efanelekileyo yokusebenza, kwaye kwimeko yokusebenza okuzinzileyo, ukuphumelela okuphezulu kwe-devolatilization kunokufumaneka.

I-3, ukunciphisa okufanelekileyo kokutya kunokunciphisa izinga lokuzaliswa kwecandelo lokukhupha, ukwenzela ukuba ukusebenza kakuhle kwe-devolatilization kuphuculwe;kodwa umthamo wesondlo ophantsi kakhulu awunciphisi kuphela inani le-extrusion kunye nokuguquguquka, kodwa nangenxa yokuba izinga lokuzaliswa liphantsi kakhulu, akwanelanga ukwenza ukunyibilika I-pool iyanciphisa ukusebenza kwe-foam kunye ne-devolatilization, ngoko ke inani lokutya kufuneka libe liphakathi.

4. Ukwandisa ixesha lokuhlala kwizinto eziphathekayo kwicandelo lokuchithwa kunye nokwandisa ubude becandelo lokutshatyalaliswa kunokuphucula ukusebenza kakuhle kwe-devolatilization.Ngenxa yesi sizathu, kuthathwa njengokwandisa ubude becandelo lokukhupha kunye nokwamkela i-multi-stage exhaust kwi-design structure screw.