Enqubweni yokuphehla ukucubungula kwesikhunta, izici ezizothinta umkhiqizo ikakhulukazi zihlanganisa ingcindezi yokuvunguza, isivinini sokuphefumula, isilinganiso sokuphefumula kanye nezinga lokushisa lesikhunta.
Ukucubungula ukubumba kwe-Vula
1. Ngesikhathi sokuvunguza, umoya ocindezelweyo unemisebenzi emibili: eyodwa iwukusebenzisa ukucindezela komoya ocindezelwe ukwenza i-semi-molten tube billet blow futhi ibambelele odongeni lwesigxobo sesikhunta ukuze kwakheke umumo oyifunayo;Okwesibili, idlala indima yokupholisa emikhiqizweni yokubumba i-Dongguan blow.Ukucindezela komoya kuncike ohlotsheni lwepulasitiki nezinga lokushisa le-billet, ngokuvamile elilawulwa ngo-0.2 ~ 1.0mpa.Kumapulasitiki ane-viscosity encibilikayo ephansi kanye nokuguqulwa okulula (okufana ne-PA ne-HDPE), thatha inani eliphansi;Kumapulasitiki ane-viscosity ephezulu yokuncibilika (njenge-PC), amanani aphezulu athathwa, kanjalo nokuqina kodonga lwe-billet.Ukucindezela okushayayo nakho kuhlobene nomthamo wemikhiqizo, imikhiqizo yevolumu enkulu kufanele isebenzise ukucindezela okuphezulu kokuphefumula, imikhiqizo yevolumu emincane kufanele isebenzise ukucindezela okuncane okushaywayo.Ingcindezi evuthelayo efaneleke kakhulu kufanele ikwazi ukwenza ukubukeka kanye nephethini yomkhiqizo kucace ngemuva kokwenza.
2, isivinini sokuphefumula ukuze unciphise isikhathi sokuphefumula, ukuze kuhambisane nomkhiqizo ukuthola ukushuba okufanayo nokubukeka okungcono, izidingo zejubane eliphansi lokugeleza ekugelezeni komoya, ukuqinisekisa ukuthi i-billet in the Isikhunta sesikhunta singafana, sikhule ngokushesha, sinciphise isikhathi sokupholisa emgodini wesikhunta, futhi kulungele ukuthuthukisa ukusebenza komkhiqizo.Isivinini sokugeleza komoya esiphansi singaphinda sigweme uhlobo lomphumela we-Venduri ku-billet kanye nokwakheka kwe-vacuum yasendaweni, ukuze ukwenzeka kwe-billet kuhlakazeke.Lokhu kungaqinisekiswa ngokusetshenziswa kwepayipi elikhulu elivuthelayo.
3, isilinganiso sokuphefumula lapho usayizi kanye nekhwalithi ye-billet iqinisekile, ubukhulu bomkhiqizo bukhulu, isilinganiso sokushaywa kwe-billet sikhulu, kodwa sibancane ukushuba komkhiqizo.Ngokuvamile ngokusho kohlobo lwepulasitiki, imvelo, ukuma nobukhulu bomkhiqizo, kanye nobukhulu be-billet ukuze kunqunywe usayizi wesilinganiso sokushaywa.Ngokukhula kwesilinganiso sokuphefumula, ubukhulu bomkhiqizo buba buncane, futhi amandla nokuqina kuyehla.Kubuye kube nzima ukwakha.Ngokuvamile, isilinganiso sokushaywa silawulwa ngo-l
2-4) noma kunjalo.
4. Izinga lokushisa lokubumba isikhunta linomthelela omkhulu kwikhwalithi yemikhiqizo (ikakhulukazi ikhwalithi yokubukeka).Ngokuvamile ukusabalalisa kwezinga lokushisa kwesikhunta kufanele kufane, ngangokunokwenzeka ukwenza umkhiqizo upholise umfaniswano.Izinga lokushisa lesikhunta lihlobene nohlobo lwepulasitiki, ubukhulu nobukhulu bemikhiqizo.Ngezinhlobo ezahlukene zepulasitiki, kukhona ipulasitiki embalwa (ibhodlela lokubumba i-PC) izinga lokushisa lesikhunta okufanele lilawulwe ngezigaba.
Umkhuba wokukhiqiza ufakazele ukuthi izinga lokushisa lesikhunta liphansi kakhulu, khona-ke ukunwetshwa kwepulasitiki kusiqeshana kuyancishiswa, akulula ukushaya, ukuze umkhiqizo uqiniswe kule ngxenye, futhi kunzima ukwenza, futhi i-contour nephethini yendawo yomkhiqizo akucacile;Izinga lokushisa lesikhunta liphezulu kakhulu, isikhathi sokupholisa siyandiswa, umjikelezo wokukhiqiza uyakhula, nokukhiqiza kuyehla.Ngalesi sikhathi, uma ukupholisa kunganele, kuzophinde kubangele ukuwohloka komkhiqizo, izinga lokuncipha liyakhula, futhi ukucwebezela komhlaba kubi kakhulu.Ngokujwayelekile kumapulasitiki anokuqina kwama-molecular chain, izinga lokushisa lesikhunta kufanele libe phezulu;Kumapulasitiki anamaketanga amangqamuzana amakhulu aguquguqukayo, izinga lokushisa lesikhunta kufanele lincishiswe.
Imikhiqizo yokubumba engenalutho ngesikhathi sokupholisa isikhunta yinde, inhloso iwukuqinisekisa ukuthi umkhiqizo upholile ngokuphelele, ususa ngaphandle kokuguqulwa.Isikhathi sokupholisa ngokuvamile sincike kubukhulu, ubukhulu kanye nokuma kwepulasitiki, kanye nohlobo lwepulasitiki.Ukuqina kodonga, kuba side isikhathi sokupholisa.Isikhathi sokupholisa semikhiqizo engu-61PE enamandla amakhulu athile okushisa side kunaleso semikhiqizo ye-PP enomthamo wokushisa othize omncane wokujiya kodonga olufanayo.
5. Umjikelezo wokubumba Umjikelezo wokukhiqiza wokubumba uhlanganisa i-extrusion billet, ukuvala ukufa, ukusika i-billet, ukuvuthela, ukubola, ukuvula isikhunta, ukukhipha imikhiqizo nezinye izinqubo.Umgomo walokhu kukhethwa komjikelezo uwukufinyeza ngangokunokwenzeka ngaphansi kwesisekelo sokuqinisekisa ukuthi umkhiqizo ungalolongwa ngaphandle kokuguqulwa, ukuze kuthuthukiswe ukusebenza kahle kokukhiqiza.
Isikhathi sokuthumela: Aug-31-2022