Amabhodi amagwebu e-PVC asetshenziswa kuzo zonke izigaba zokuphila, ikakhulukazi ezintweni zokwakha.Uyazi ukuthi yiziphi izinkinga ezingase ziphakame ngesikhathi sokukhiqizwa kwamabhodi e-foam e-PVC?Ngezansi, umhleli uzokutshela ngabo.
Ngokwezilinganiso ezihlukene zokugwedla, ingahlukaniswa ibe namagwebu aphezulu kanye namagwebu aphansi.Ngokuvumelana nokuthamba nobulukhuni bokuthungwa kwegwebu, ingahlukaniswa ibe amagwebu aqinile, ama-semi-hard futhi athambile.Ngokusho kwesakhiwo seseli, ingahlukaniswa ngamapulasitiki e-foam avaliwe kanye namapulasitiki e-foam avulekile.Amashidi egwebu avamile e-PVC angamashidi aqinile avaliwe anegwebu eliphansi.Amashidi egwebu e-PVC anezinzuzo zokumelana nokugqwala kwamakhemikhali, ukumelana nesimo sezulu, ukuncipha kwelangabi, njll., futhi asetshenziswa kabanzi ezicini eziningi, okuhlanganisa amaphaneli wokubonisa, izimpawu, amabhodi, ama-partitions, amaphaneli okwakha, amaphaneli efenisha, njll. Amandla anganele ancibilika kuholela kumaseli amakhulu eshidini legwebu kanye nezigaba ezinde ze-longitudinal.Indlela eqondile yokwahlulela ukuthi amandla okuncibilika awanele yini ukuya ngemuva kwamarola amathathu bese ucindezela ipuleti eligoqwe kurola ophakathi ngeminwe yakho.Uma amandla okuncibilika emahle, ungakwazi ukuzwa ukunwebeka lapho ucindezela.Uma kunzima ukuvela ngemva kokucindezelwa, amandla okuncibilika aba mancane.Ngenxa yokuthi ukwakheka kwesikulufu nendlela yokupholisa kuhluke kakhulu, kunzima ukwahlulela ukuthi izinga lokushisa liyafaneleka yini.Ngokuvamile, ngaphakathi komthwalo ovunyelwe we-extruder, izinga lokushisa ezindaweni ezingu-3-5 kufanele libe phansi ngangokunokwenzeka.Ukuze uthole imikhiqizo efana ne-foam ephepheni legwebu, kuyadingeka futhi ukuqinisekisa ukuthi impahla ye-PVC inamandla amahle okuncibilika.Ngakho-ke, ikhwalithi yomlawuli we-foaming ibaluleke kakhulu.Isibonelo, ngaphezu kwemisebenzi eyisisekelo yosizo lokucubungula inhloso evamile, isilawuli esinegwebu siphinde sibe nesisindo samangqamuzana namandla okuncibilika, okungathuthukisa kakhulu amandla okuncibilika kwengxube ye-PVC futhi kuvimbele amabhamuza nokuqhekeka., okuholela ekwakhiweni kweseli okufana kakhulu kanye nokuminyana komkhiqizo okuphansi, kuyilapho futhi kuthuthukisa isicwebezelisi esingaphezulu somkhiqizo.Kunjalo, umthamo we-ejenti enegwebu eliphuzi kanye ne-ejenti enegwebu elimhlophe kufanele futhi ifaniswe.
Ngokuqondene namabhodi, uma ukuzinza kunganele, kuzothinta yonke indawo yebhodi kanye nobuso bebhodi ukuze buphenduke ophuzi, futhi ibhodi le-foam liyoba brittle.Isixazululo ukwehlisa izinga lokushisa lokucubungula.Uma kungekho ukuthuthukiswa, ungalungisa ifomula futhi ukhuphule ngokufanelekile inani le-stabilizer kanye ne-lubricant.I-stabilizer iyisistimu yokugcoba esekelwe kumafutha angenisiwe ukuze kuthuthukiswe uketshezi lwento.Izinto ezikwazi ukumelana nokushisa zine-fluidity enhle., ukumelana nokushisa okuhle;ukumelana nesimo sezulu esiqinile, ukuhlakazeka okuhle, imiphumela eqinile kanye nokuncibilika;ukuzinza okuhle kakhulu, uketshezi lwe-plasticizing, uhla lokucubungula olubanzi, ukusebenziseka okuqinile kanye nokugcotshwa okuyisizayo kwangaphakathi nangaphandle.I-Lubricant ine-viscosity ephansi, izakhiwo ezikhethekile eziphezulu, ukuthambisa okuhle kakhulu nokuhlakazeka, futhi isetshenziswa kabanzi ekucubunguleni ipulasitiki nezinye izimboni.Inemiphumela emihle yokugcoba yangaphakathi nangaphandle;inokuhambisana okuhle ne-polyethylene, i-polyvinyl chloride, i-polypropylene, njll. Isetshenziswa njenge-dispersant, i-lubricant kanye ne-brightener ngesikhathi sokubumba amaphrofayili e-PVC, amapayipi, ukufakwa kwamapayipi, i-PE ne-PP, ukuthuthukisa izinga le-plasticization, ukuthuthukisa ukuqina nokushelela. ubuso bemikhiqizo yepulasitiki, futhi ingashintshwa ngayinye ngayinye, okwenza kube lula ukuthola izinkinga ngokushesha Noma ngabe ukuphi, xazulula inkinga ngokushesha ngangokunokwenzeka.Mayelana nebhalansi ye-lubricant, isiliphu sangaphandle esinganele sibonakala eqinisweni lokuthi izinga lokushisa ku-zone 5 ye-extruder kunzima ukulilawula futhi lishise kalula, okuholela ekushiseni okuphezulu kumongo oguquguqukayo, izinkinga ezinjengamabhamuza amakhulu, amabhamuza, namabhamuza. ukuphuzi phakathi kwebhodi, futhi ubuso bebhodi abushelelezi;Ukushelela ngokweqile kuzodala imvula ibe yingozi, ezozibonakalisa esakhiweni esingaphakathi kwesikhunta kanye nemvula yokushelela kwangaphandle ebusweni bepuleti.Izophinda ibonakale njengezinto ezithile ezihamba phambili naphambili ngokungavamile endaweni yepuleti.Ukushelela kwangaphakathi okunganele kusho ukuthi kunzima ukulawula ukushuba kwebhodi, eliwugqinsi phakathi nendawo futhi lincane nhlangothi zombili.Ukushelela kwangaphakathi okuningi kakhulu kuzoholela kalula emazingeni okushisa aphezulu kumongo oguquguqukayo.
Isikhathi sokuthumela: May-27-2024