Muchina wekufuridza bhodhoro muchina unogona kufuridzira preforms dzakapedzwa mumabhodhoro kuburikidza nedzimwe nzira dzetekinoroji.Parizvino, mazhinji emagetsi ekuumba michina anotora maviri-nhanho kuvhuvhuta nzira, kureva, preheating - blow molding.
1. Preheating
Iyo preform inovhenekerwa kuburikidza nemwenje wekushisa wepamusoro kupisa uye kupfavisa muviri we preform.Kuti uchengetedze chimiro chemuromo webhodhoro, muromo wepreform haudi kudziyisa, saka imwe mudziyo wekutonhora unodiwa kuti utonhodze.
2. Blow molding
Iyi nhanho ndeyekuisa preheated preform muforoma yakagadzirwa, kuipfekedza nekumanikidza kwakanyanya, uye kuridza preform mubhodhoro raunoda.
Iyo blow molding process inzira mbiri-kutambanudza nzira, umo maPET cheni anotambanudzwa, anotariswa uye anoenderana mumativi ese, nekudaro achiwedzera michina yemadziro ebhodhoro, kuvandudza kusimba, kusimba, uye simba rekuita, uye kuve ne kuita kwepamusoro kwazvo.Kubata kwemhepo kwakanaka.Kunyange zvazvo kutambanudza kunobatsira kuvandudza simba, haifaniri kutambanudza zvakanyanya.Iyo yakatambanudzwa-inoputika chiyero inofanira kudzorwa zvakanaka: iyo radial inotungamira haifanirwe kudarika 3.5 kusvika 4.2, uye axial kutungamira haifanirwe kudarika 2.8 kusvika 3.1.Ukobvu hwemadziro e preform haufanirwe kudarika 4.5mm.
Kuvhuvhuta kunoitwa pakati pegirazi tembiricha yekuchinja uye tembiricha yecrystallization, kazhinji inodzorwa pakati pe90 ne120 madhigirii.Muchikamu ichi, PET inoratidza yakakwira elastic state, uye inova bhodhoro rakajeka mushure mekukurumidza kuvhuvhuta, kutonhora uye kuseta.Mune imwe-nhanho nzira, tembiricha iyi inotariswa nenguva yekutonhora mukuumbwa kwejekiseni (senge Aoki blow molding muchina), saka hukama pakati pejekiseni uye zviteshi zvekufuridza hunofanira kunyatsobatanidzwa.
Mukugadzira kuvhuvhuta, kune: kutambanudza—kurova kumwe—kurova kaviri.Zviito zvitatu zvinotora nguva shoma shoma, asi zvinofanira kunyatsobatanidzwa, kunyanya matanho maviri ekutanga anotarisa kugoverwa kwese kwezvinhu uye kunaka kwekuputira.Nokudaro, zvakakosha kugadzirisa: nguva yekutanga kutambanudza, kukurumidza kutambanudza, kutanga uye kupedzisa nguva yekuputira kusati kwatanga, kuputika kusati kwaitika, kuyerera kusati kwaitika, etc. Kana zvichibvira, kugoverwa kwekushisa kwese. ye preform inogona kudzorwa.Iyo tembiricha gradient yemadziro ekunze.Mukuita kwekukurumidza kuvhuvhuta kuumba uye kutonhora, induced kusagadzikana inogadzirwa mumadziro ebhodhoro.Kune mabhodhoro echinwiwa checarbonated, inogona kuramba kumanikidzwa kwemukati, izvo zvakanaka, asi kune mabhodhoro anopisa-kuzadza, zvinodikanwa kuve nechokwadi kuti inoburitswa zvizere pamusoro peiyo tembiricha yegirazi.
Nguva yekutumira: Aug-02-2022