(1) Isingeniso seI-extruder yesikulufu esisodwa
Ama-extruder anesikulufu esisodwa, njengoba negama liphakamisa, anesikulufu esisodwa ngaphakathi kombhobho we-extruder. Ngokuvamile, ubude obusebenzayo buhlukaniswa ngezigaba ezintathu, futhi ubude obusebenzayo bezigaba ezintathu bunqunywa ngokuya ngedayamitha yesikulufu, iphimbo, nokujula kwesikulufu, futhi ngokuvamile buhlukaniswa ngokuya ngokubala ngakunye ngengxenye eyodwa kwezintathu.
Ingxenye yokuqala: kusukela kuchungechunge lokugcina lwembobo yokuphakelayo, ibizwa ngokuthi isigaba sokudlulisa. Izinto lapha azidingeki ukuthi zenziwe ngepulasitiki, kodwa kufanele zishiswe futhi zifakwe. Esikhathini esidlule, i-extrusion theory endala yayikholelwa ukuthi izinto ezikhona lapha ziwumzimba ovulekile. Kamuva, kwafakazelwa ukuthi impahla lapha empeleni iyipulaki eliqinile, okusho ukuthi impahla lapha iyampintsha. Ingemuva liqinile njengepulaki, inqobo nje uma liqeda umsebenzi wokulethwa, kungumsebenzi walo.
(2) Ukusetshenziswa kwe-screw extruder eyodwa
I-extruder ye-screw single isetshenziswa kakhulu ekukhishweni kwamapayipi, amashidi, amapuleti, nezinto ezenziwe ngephrofayili, kanye ne-granulation yezinto ezithile eziguquliwe.
(1) Isingeniso sei-twin-screw extruder
I-twin-screw extruder ihlanganisa lezi zinhlelo ezilandelayo. Uhlelo lwesikulufu luqeda ngokuyinhloko i-plasticization kanye nenqubo yokudlulisa impahla, enethonya elikhulu ekusebenzeni kanye nekhwalithi yomkhiqizo ophelile.
① Uhlelo lokuphakela: kufaka phakathi i-hopper, i-motor enyakazayo, kanye nenjini yokudla. Ingavimbela ukunqwabelana kwezinto futhi yenze kube lula ukungena kwayo kahle embobeni yokuphakelayo.
② Isistimu yokushisisa yangaphandle: Ngokuyinhloko sebenzisa induku yokushisisa nesilinda ukuze ushise izinto ngendlela efanele futhi ukhuthaze ukwenziwa kwepulasitiki.
③Isistimu yokupholisa: Uhlelo lokushintshanisa ukushisa olwakhiwe ngamafutha okudlulisa ukushisa noma amanzi asetshenziselwa ukunciphisa ukushisa kwe-fuselage, ukuze kulawulwe ngempumelelo izinga lokushisa lesilinda.
④ Uhlelo lokushintsha isikrini se-Hydraulic: Sebenzisa izikrini zokuhlunga ezingashintshwa ukuze ubambe ukungcola, uthuthukise izinga lepulasitiki, futhi uqinisekise ukufana nokuzinza kwekhwalithi yezinto eziphumayo.
Isibonelo sohlelo lokusebenza lwe-twin-screw extruder: i-fiber yengilazi iqinisiwe, imbudumbudu ye-flame retardant (efana ne-PA6, PA66, PET, PBT, PP, i-PC eqiniswe i-flame retardant, njll.), i-filler granulation ephezulu (njenge-PE, i-PP egcwele i-75% CaCO3), i-granulation yezinto ezibonakalayo ezizwela ukushisa (njenge-PVC, impahla yekhebula le-XLPE), i-masterbatch yombala owugqinsi (njengokugcwalisa 50% toner), i-anti-static masterbatch, i-alloy, umbala, i-granulation ehlanganisiwe yokugcwalisa okuphansi, i-cable material granulation ( Njengempahla ye-sheath, insulating material), i-XLPE yepayipi ye-granulation (efana ne-masterbatch yokuphambanisa kwamanzi ashisayo), ukuxuba ipulasitiki e-thermosetting kanye ne-extrusion (njenge-phenolic i-resin, i-epoxy resin, i-powder coating), ingcina encibilikayo eshisayo, i-PU reactive extrusion granulation (njenge I-EVA enamathelayo encibilikayo eshisayo, i-polyurethane), i-K resin, i-SBS devolatilization granulation, njll.
Izibonelo zohlelo lokusebenza lwe-single screw extruder:ifanele amapayipi e-PP-R, amapayipi egesi e-PE, amapayipi axhumene ne-PEX, amapayipi ayinhlanganisela ye-aluminium-plastic, amapayipi e-ABS, amapayipi e-PVC, amapayipi angumgogodla we-HDPE silicon kanye namapayipi ayinhlanganisela ahlukene akhishwe ngokubambisana; ifanele i-PVC, i-PET, i-PS, i-PP, i-PC namanye amaphrofayli namapuleti, namanye amapulasitiki afana nama-filaments, izinduku, njll; ukulungisa isivinini se-extruder nokuguqula ukwakheka kwesikulufu se-extrusion kungasetshenziswa ekukhiqizeni i-PVC ne-polyolefins. Namanye amaphrofayili epulasitiki.
Isikhathi sokuthumela: Jul-20-2023