Ngenxa yokusetshenziswa kabanzi kwezikhwama zepulasitiki ezilukiwe ze-PP, umthamo wokukhiqizwa kwe-Izikhwama ezilukiwe ze-PPkuyanda, okuholela ekukhuleni kwenani lezikhwama zemfucuza. Ukuphinda usebenzise lezi zikhwama zemfucuza kuyindlela ephumelelayo yokunciphisa izindleko zokukhiqiza, ukuvikela imvelo, nokusebenzisa ngokugcwele izinsiza. Eminyakeni yamuva nje, abakhiqizi abaningi benze ucwaningo kule ndawo.
Le ngxoxo igxile ekusetshenzisweni kabusha kwe-Izikhwama ezilukiwe ze-PPIzinto zokulahla udoti zibhekisela kudoti wepulasitiki we-PP ofanele ukukhiqizwaIzikhwama ezilukiwe ze-PP. Lena indlela yokusebenzisa imfucuza yohlobo olulodwa enezidingo eziphezulu; ayikwazi ukuhlanganiswa nezinye izinhlobo zepulasitiki, futhi ayikwazi ukuqukatha udaka, isihlabathi, ukungcola, noma ukungcola kwemishini. Inkomba yayo yokugeleza kokuncibilika kumele ibe phakathi kuka-2-5 (akuwona wonke amapulasitiki e-PP afaneleka). Imithombo yayo iphindwe kabili: izinto zokungcola ezivela enkambisweni yokukhiqiza izikhwama ezilukiwe ze-PP kanye nezikhwama ze-PP zokungcola eziphinde zasetshenziswa, njengezikhwama zomanyolo, izikhwama zokudla, izikhwama zikasawoti, njll.
2. Izindlela Zokusebenzisa Kabusha
Kunezindlela ezimbili eziyinhloko zokuvuselela: ukuncibilikisa ama-pellet kanye ne-extrusion granulation, lapho i-extrusion granulation ivame kakhulu. Izinqubo zazo zombili lezi zindlela zimi kanje.
2.1 Indlela Yokuncibilikisa I-Melt Granulation
Izinto ezilahliwe -- ukukhethwa nokuwashwa -- ukomiswa -- ukusika zibe yimichilo -- ukugoqwa kwe-granulation okusheshayo (ukuphakelwa -- ukuncipha kokushisa -- ukufuthwa ngamanzi -- ukugoqwa kwe-granulation) Ukukhishwa nokupakisha.
2.2 Indlela Yokukhipha I-Granulation
Izinto ezilahliwe -- ukukhethwa -- ukuwasha -- ukomisa -- ukusika kube yimichilo -- ukukhishwa okushisayo -- ukupholisa nokufaka i-pelletizing -- ukupakishwa.
Imishini esetshenziswa endleleni yokukhipha imfucuza iyi-extruder enezigaba ezimbili eyenziwe ngokwakho. Ukuze kususwe igesi ekhiqizwa ngesikhathi sokukhipha imfucuza, i-extruder ekhipha umoya nayo ingasetshenziswa. Ukuze kususwe ukungcola ezintweni ezilahliwe, kufanele kusetshenziswe isikrini se-mesh esingu-80-120 ekugcineni kokukhipha i-extruder. Izimo zenqubo yokukhipha kabusha imfucuza ziboniswe etafuleni.
Izinga lokushisa lomshini wokukhipha kumele lilawulwe kahle, kungabi phezulu kakhulu noma phansi kakhulu. Izinga lokushisa eliphakeme kakhulu libangela kalula ukuthi izinto ziguge futhi ziphuzi, noma ziphenduke i-carbon bese ziphenduka zibe mnyama, okuzothinta kakhulu amandla nokubukeka kwepulasitiki; izinga lokushisa elinganele libangela ukwenziwa kwepulasitiki okubi, izinga eliphansi lokukhishwa, noma ngisho nokungabikho kokukhishwa kwezinto, futhi kuthambekele kakhulu ekulimaleni isikrini sesihlungi. Izinga lokushisa elifanele lokukhishwa kwe-extrusion kufanele linqunywe ngokusekelwe emiphumeleni yenkomba yokuncibilika kweqoqo ngalinye lemfucuza esetshenzisiwe ethathwe futhi yahlolwa.
3. Ukusetshenziswa Kwezinto Ezisetshenziswe Kabusha kanye Nomthelela Wazo Ekusebenzeni Kwezikhwama Ze-PP: Ukuguga kokushisa ngesikhathi sokucubungula ipulasitiki kuthinta kakhulu ukusebenza, ikakhulukazi ezikhwameni ezilukiwe ze-PP ezisetshenziswe kabusha esezidlule ezinqubweni ezimbili noma ngaphezulu zokushisa. Uma kuhlanganiswa nokuguga kwe-UV ngesikhathi sokusetshenziswa ngaphambi kokusetshenziswa kabusha, ukusebenza kuyawohloka ngokuphawulekayo. Ngakho-ke,Izikhwama ezilukiwe ze-PPNgeke isetshenziswe futhi unomphela. Uma izinto ezisetshenzisiwe zisetshenziswa zodwa ukukhiqiza izikhwama ze-PP, zingaphinde zisetshenziswe kathathu kuphela. Njengoba kunzima ukunquma inani lezikhathi imfucuza ephinde yasetshenziswa ecutshunguliwe ngazo, ukuqinisekisa ikhwalithi yesikhwama se-PP, ngisho nasezikhwameni ezinezidingo eziphansi, ingxube yezinto ezihlanzekile nezisetshenzisiwe kufanele isetshenziswe ekukhiqizeni. Isilinganiso sengxube kufanele sinqunywe ngokusekelwe kudatha yokulinganisa yangempela yezinto ezimbili. Inani lezinto ezisetshenzisiwe ezisetshenzisiwe lithinta ngqo ikhwalithi yentambo eyisicaba yesikhwama se-PP. Ikhwalithi yezikhwama ezilukiwe incike emandleni okudonseka kanye nokwelulwa kwentambo eyisicaba. Izinga likazwelonke (GB8946-88) lichaza amandla entambo eyisicaba angu->=0.03 N/denier kanye nokwelulwa okungu-15%-30%. Ngakho-ke, ekukhiqizeni, cishe u-40% wezinto ezisetshenzisiwe ezivame ukungezwa. Kuye ngekhwalithi yezinto ezisetshenzisiwe, lokhu ngezinye izikhathi kungakhushulwa ku-50%-60%. Ngenkathi ukwengeza izinto ezisetshenzisiwe kunciphisa izindleko zokukhiqiza, kubeka engcupheni ikhwalithi yesikhwama. Ngakho-ke, inani lezinto ezisetshenzisiwe ezingeziwe kufanele libe elifanele, kuqinisekiswe ikhwalithi. 4. Ukulungiswa kwenqubo yokudweba ngokusekelwe ekusetshenzisweni kwezinto ezisetshenzisiwe: Ngenxa yokucubungula ukushisa okuphindaphindiwe kanye nokuguga kwe-UV ngesikhathi sokusetshenziswa isikhathi eside, inkomba yokuncibilika kwe-PP esetshenzisiwe iyanda ngomjikelezo ngamunye wokucubungula. Ngakho-ke, lapho kungezwa inani elikhulu lezinto ezisetshenzisiwe ezintweni ezisetshenzisiwe, izinga lokushisa le-extruder, izinga lokushisa lekhanda lokufa, kanye nokushisa kokwelula nokubeka kufanele kwehliswe ngokufanele uma kuqhathaniswa nezinto ezisetshenzisiwe. Inani lokulungisa kufanele linqunywe ngokuhlola inkomba yokuncibilika yengxube yezinto ezintsha nezisetshenzisiwe. Ngakolunye uhlangothi, ngoba izinto ezisetshenzisiwe zidlula izinyathelo eziningi zokucubungula, isisindo sazo sama-molecule siyancipha, okuholela enanini elikhulu lamaketanga amafushane ama-molecule, futhi ziye zadlula nezinqubo eziningi zokwelula nokuqondisa. Ngakho-ke, enkambisweni yokukhiqiza, isilinganiso sokwelula kumele sibe ngaphansi kunesohlobo olufanayo lwezinto ezisetshenzisiwe. Ngokuvamile, isilinganiso sokwelula sezinto ezisetshenzisiwe siphindwe ka-4-5, kanti ngemva kokwengeza izinto ezisetshenzisiwe ezingu-40%, ngokuvamile siphindwe ka-3-4. Ngokufanayo, ngenxa yenkomba yokuncibilika ekhulayo yezinto ezisetshenzisiwe, i-viscosity iyancipha, futhi izinga lokukhipha liyakhuphuka. Ngakho-ke, ngaphansi kwesivinini esifanayo sesikulufo kanye nezimo zokushisa, isivinini sokudweba kufanele sisheshe kancane. Ekuxubeni izinto ezintsha nezindala, kubalulekile ukuqinisekisa ukuxuba okufanayo; ngesikhathi esifanayo, izinto zokusetshenziswa ezinezinkomba zokuncibilika ezifanayo kufanele zikhethwe ukuze zixutshwe. Umehluko omkhulu kuma-indices okuncibilika kanye namazinga okushisa okuncibilika kusho ukuthi izinto zokusetshenziswa ezimbili azikwazi ukwenziwa ipulasitiki ngesikhathi esisodwa ngesikhathi sokukhipha ipulasitiki, okuzothinta kakhulu isivinini sokunwebeka kwe-extrusion, okuzoholela esilinganisweni esiphezulu se-scrap, noma ngisho nokwenza ukukhiqizwa kungenzeki.
Njengoba kushiwo ngenhla, ukuphinda kusetshenziswe kabusha kanye nokusetshenziswa kabusha kweI-PPolukiweizikhwamaKuyenzeka ngokuphelele ngokukhethwa kwezinto ngokucophelela, ukwakheka kwenqubo efanele, kanye nokulawulwa kwesimo senqubo okunengqondo nokunembile. Ngeke kuthinte ikhwalithi yomkhiqizo, futhi izinzuzo zezomnotho zibaluleke kakhulu.
Isikhathi sokuthunyelwe: Novemba-13-2025