Isikhwama sokupheka esishisa kakhulu siyinto enhle kakhulu. Singase singayiqapheli le phakheji uma sidla njalo. Eqinisweni, isikhwama sokupheka esishisa kakhulu asisona isikhwama sokupakisha esivamile. Siqukethe isisombululo sokushisa futhi siwuhlobo oluhlanganisiwe. Njengoba siyisikhwama sokupakisha esiyingqayizivele, kungashiwo ukuthi isikhwama sokupheka esishisa kakhulu sihlanganisa izici zesitsha kanye nesikhwama sokupheka. Ukudla kungahlala kuphelele esikhwameni, ngemva kokuhlanza nokushisa ekushiseni okuphezulu (ngokuvamile okungu-120 ~ 135℃), kungadliwa ngemva kokukususa. Ngemva kweminyaka engaphezu kweyishumi yokusetshenziswa, kuye kwafakazelwa ukuthi kuyisitsha sokupakisha esifanelekile sokuthengisa. Sifanelekela ukupakishwa kwemikhiqizo yenyama nesoya, okulula, okuhlanzekile futhi okusebenzayo, futhi kungagcina kahle ukunambitheka kokuqala kokudla, okuthandwa ngabathengi.
Kuyaqondakala ukuthi ukupakisha kokuqala okungagcina ukudla kwenyama ekamelweni lokushisa ukudla okusemathinini, okuyithini lensimbi elenziwe nge-tinplate, futhi kamuva kusebenzisa amabhodlela engilazi njengokupakisha kwangaphandle. Womabili amabhodlela e-tinplate namabhodlela engilazi anokumelana nokupheka okushisa okuphezulu kanye nezakhiwo zokuvimbela okuphezulu, ngakho-ke isikhathi sokudla okusemathinini singafinyelela iminyaka engaphezu kwemi-2. Kodwa-ke, ngenxa yokuthi amathini e-tinplate namabhodlela engilazi kuyizitsha zokupakisha eziqinile ezinomthamo omkhulu nesisindo esindayo, i-tinplate inokumelana nokugqwala kwamakhemikhali okubi, ikakhulukazi uma igcwele ukudla okune-acidic, ama-ion ensimbi asheshe aqhume, okuthinta ukunambitheka kokudla. Ngawo-1960, i-United States yasungula ifilimu ehlanganisiwe ye-aluminium-plastic ukuze ixazulule ukupakisha kokudla kwezindiza. Isetshenziselwa ukupakisha ukudla kwenyama, futhi ingagcinwa ekamelweni lokushisa ngokushisa okuphezulu kanye nokuhlanza umfutho ophezulu, kanye nesikhathi sokuphila seshelufu esingaphezu konyaka owodwa. Indima yefilimu ehlanganisiwe ye-aluminium-plastic ifana neyethini, elithambile futhi elilula, ngakho-ke libizwa ngokuthi "ithini elithambile".
Ngokuphathelene nokupakishwa kokudla, izikhwama zokuphendulela ezinokushisa okuphezulu zinezinhlobo eziningi ezihlukileizinzuzouma kuqhathaniswa nezitsha zokufaka ukudla ezifakwe emakhanzini kanye nezikhwama zokupakisha ukudla eziqandisiwe:
①Londoloza umbala,iphunga, ukunambitheka kanye nesimo sokudla.Isikhwama sokuphendula sincane, futhi singahlangabezana nezidingo zokubulala amagciwane ngesikhathi esifushane, futhi silondoloze umbala wokuqala, iphunga, ukunambitheka kanye nesimo sokudla ngangokunokwenzeka.
kulula ukuyisebenzisa.Isikhwama sokuphendula singavulwa kalula nangokuphephile. Uma udla, faka ukudla kanye nesikhwama emanzini abilayo bese ukufudumeza imizuzu emi-5 ukuze kuvulwe futhi kudliwe, noma ngabe kungafudunyezwanga.
②Isitoreji esilula kanye nokuthuthwa.Isikhwama sokupheka silula ngesisindo, singabekwa futhi sigcinwe, futhi sithatha indawo encane. Ngemva kokupakisha ukudla, indawo esetshenziswayo incane kuneyethini lensimbi, elingasebenzisa ngokugcwele indawo yokugcina kanye neyokuthutha futhi longe izindleko zokugcina kanye nezokuthutha.
londoloza amandla.Ngenxa yobuncane besikhwama sokupheka, isikhwama singafinyelela izinga lokushisa elibulalayo lamagciwane ngokushesha uma sishiswa, futhi ukusetshenziswa kwamandla kungaphansi ngo-30-40% kunokwesitsha sensimbi.
③ kulula ukuyithengisa.Izikhwama zokuziphendulela zingapakishwa noma zihlanganiswe nokudla okuhlukene ngokwezidingo zemakethe, futhi amakhasimende angakhetha ngokuthanda kwawo. Ngaphezu kwalokho, ngenxa yokubukeka okuhle, inani lokuthengisa nalo likhuphukile kakhulu.
④isikhathi eside sokugcina.Ukudla okupakishwe ezikhwameni eziphendulayo ezingadingi ukuqandisa noma ukuqandisa, okuhlala isikhathi eside njengezinto ezifakwe emathinini ensimbi, okulula ukukuthengisa, futhi kulula ukukusebenzisa ekhaya.
⑤izindleko zokukhiqiza eziphansi.Izindleko zefilimu ehlanganisiwe yokwenza isikhwama sokuphendula ziphansi kunezepuleti lensimbi, futhi inqubo yokukhiqiza kanye nemishini edingekayo ilula kakhulu, ngakho intengo yesikhwama sokuphendula iphansi.
Isakhiwo somkhiqizo wezikhwama zokupheka ezishisa kakhulu
Ngokuvamile ihlukaniswe ngezigaba ezintathu: ifilimu enezingqimba ezimbili, ifilimu enezingqimba ezintathu kanye nesakhiwo sefilimu esinezingqimba ezine.
Ifilimu enezingqimba ezimbili ngokuvamile i-BOPA/CPP, PET/CPP；
Isakhiwo sefilimu esinezingqimba ezintathu yi-PET/AL/CPP、BOPA/AL/CPP；
Isakhiwo sefilimu esinezingqimba ezine yi-PET/BOPA/AL/CPP，PET/AL/BOPA/CPP。
Ukuhlolwa kokumelana nokupheka okushisa okuphezulu
Ngemva kokuba isikhwama senziwe, faka inani elifanayo lokuqukethwe esikhwameni bese usivala kahle (Qaphela: okuqukethwe kufana nokuqukethwe okuchazwe yikhasimende, bese uzama ukukhipha umoya esikhwameni lapho uvala, ukuze ungathinti umphumela wokuhlola ngenxa yokwanda komoya ngesikhathi sokupheka)，Kufake ebhodweni lokupheka elinomfutho wangemuva we-ts-25c, bese usetha izimo ezidingwa yikhasimende (izinga lokushisa lokupheka, isikhathi, ingcindezi) ukuze uhlole ukumelana nokupheka okushisa okuphezulu; inqubo yokukhiqiza isikhwama sokupheka esishisa kakhulu okwamanje iyisikhwama sokupheka esingcono kakhulu emhlabeni. Iningi lazo likhiqizwa ngendlela yokuxuba eyomile, kanti ezimbalwa zingakhiqizwa ngendlela yokuxuba engenaso isinyibilikisi noma indlela yokuxuba ehlanganisiwe.
Ukuhlolwa kokubukeka ngemva kokupheka: ubuso besikhwama buyisicaba, abunamibimbi, amaqhubu, ukuguquka, futhi abunakwahlukaniswa noma ukuvuza.
Isikhathi sokuthunyelwe: Julayi-18-2022
