isibhengezo_sekhasi

Izindaba

Yiziphi izindlela zokubumba ibhodlela le-PET preform blow

1. Extrusion blow molding

I-Extrusion blow molding ingenye yezindlela ezisetshenziswa kakhulu ezitsheni zokupakisha zepulasitiki.Impushana (noma i-granular material) yepulasitiki ye-thermosetting iyancibilika nge-extruder, bese yenziwa i-hot-melt tubular parison ngokusho kweshubhu lempahla ekhethekile.Lapho i-parison idlula ubude obusethiwe, i-parison ingena esikhunjeni, isikhunta siyavalwa, bese sibunjwa.
Izici zale ndlela yokubumba yilezi: ukusebenza kahle okuphezulu kokukhiqiza, izinga lokushisa lesonto elilinganiselwe, ububanzi obuvumelekile bomumo, ubukhulu nokuqina kodonga lwesitsha esingenalutho, ukuguquguquka okuqinile, amandla aphezulu okucindezela kwenqubo yokubumba, imishini elula nemishini, kanye nokuphansi. ukutshalwa kwezimali kwezobunjiniyela.Nokho, ukunemba kobuciko bezandla akuphakeme.Umgodi wangaphakathi wentambo yangaphandle uzoshintsha ngokushintsha kwentambo yangaphandle ebusweni.Kukhona i-patchwork seam ngaphansi kwesitsha.

2. Ukubumba igalelo lomjovo
Umjovo igalelo ukubumba isebenzisa umshini wepulasitiki ukujova ejele mandrel.Ngemuva kokuthi i-parison ipholiswe ngokulingene, i-mandrel kanye ne-parison idla ithuluzi lokubumba igalelo.Ithuluzi lokubumba igalelo licindezela i-mandrel futhi umoya owethulwe uvaliwe futhi ucindezelwe ukuze I-parison yande futhi ikhiqize imisebenzi yezandla edingekayo, futhi izimpahla ziyasuswa ngemva kokuba zifakwe esiqandisini futhi ziqiniswe.
Izici zale ndlela yokubumba: ayikho imithungo emisebenzini yezandla, asikho isidingo sokulungiswa kamuva, ukunemba okuphezulu kwezintambo zangaphandle nezivalo zamabhodlela, umgodi wangaphakathi wekhanda nentamo usendingilizini ebushelelezi, umthamo wokukhiqiza ungaba kukhulu, kunemishini eyisiza nemishini embalwa, futhi amandla okucindezela phansi komkhiqizo Aphezulu, ukusetshenziswa kwempahla eluhlaza okuphansi, ukushuba kodonga olufanayo, nokusebenza kahle okuphezulu kokukhiqiza.Kodwa-ke, ukutshalwa kwezimali kumaphrojekthi wemishini yemishini kukhulu, umjikelezo wokukhiqiza mude, izidingo zabasebenzisi abasebenzayo ziphezulu, ukubukeka akufanele kube yinkimbinkimbi kakhulu, futhi imininingwane yesitsha inomkhawulo, ngakho ilungele ukukhiqiza abancane nabaphakathi nendawo. iziqukathi ezinembayo eziphezulu.

3. Ukubumba igalelo lokwelula
Indlela yokubumba iwukusebenzisa induku yokwelula ukwenza ukwelula kwe-radial bese usenza ngokushesha ukubumba.Ngaphezu kwalokho, phakathi nenqubo yokubumba, ama-macromolecules e-biological ahlelwe ngokuhlelekile ezindongeni zemidwebo, ngaleyo ndlela athuthukise kakhulu ukusebenza kwesitsha sepulasitiki.
Izici zale ndlela yokubumba yilezi: izinga eliphansi lesici, ukusebenza kahle kokukhiqiza okuphezulu, ukulawula okulula kwesisindo senetha, ukuqina kokuphuka okuphezulu, ukuqina okuthuthukisiwe, ukuhambisana okuthuthukisiwe nokushelela kwemisebenzi yezandla, kanye nezakhiwo ezinhle zokuvimbela kanye nokuvala, kodwa izidingo zokulawula izinga lokushisa zokwelula. ziphezulu uma kuqhathaniswa, kanti ukutshalwa kwezimali kwemishini nemishini kukhulu uma kuqhathaniswa.


Isikhathi sokuthumela: Nov-14-2023