Iibhotile zesiselo ziguquliwe iibhotile ze-PET ezixutywe ne-polyethylene naphthalate (PEN) okanye iibhotile ezidibeneyo ze-PET kunye ne-thermoplastic polyarylate.Zihlelwa njengeebhotile ezishushu kwaye ziyakwazi ukumelana nobushushu obungaphezu kwama-85 ° C;iibhotile zamanzi ziibhotile ezibandayo, akukho mfuneko yokumelana nobushushu.Ibhotile eshushu ifana nebhotile ebandayo kwinkqubo yokwenza.
1. Izixhobo
Okwangoku, abavelisi boomatshini bokubumba be-PET abasebenza ngokuzeleyo bangenisa ikakhulu bevela kwi-SIDEL yaseFransi, e-KRONES yaseJamani, nase-Fujian Quanguan yase-China.Nangona abavelisi behluke, imigaqo yezixhobo zabo ziyafana, kwaye ngokubanzi ziquka iindawo ezintlanu eziphambili: inkqubo yokubonelela nge-billet, inkqubo yokufudumeza, inkqubo yokuvuthela ibhotile, inkqubo yokulawula kunye noomatshini abancedisayo.
2. Inkqubo yokubumba yokuvuthela
Inkqubo yokubumba ibhotile ye-PET.
Izinto ezibalulekileyo ezichaphazela inkqubo yokubumba ibhotile ye-PET yi-preform, ukufudumeza, ukuvuthela kwangaphambili, ukubumba kunye nokusingqongileyo kwemveliso.
2.1 Ukulungiselela kwangaphambili
Xa ulungiselela iibhotile ezibunjwe ngokuvuthela, iitshiphusi ze-PET ziqala ukubunjwa zibe zii-preforms.Kudinga ukuba umlinganiselo wezinto ezizisekondari ezifunyenweyo azikwazi ukuba phezulu kakhulu (ngaphantsi kwe-5%), inani lamaxesha okubuyisela alikwazi ukudlula kabini, kwaye ubunzima be-molecular kunye ne-viscosity ayinakuba phantsi kakhulu (i-molecular weight 31000- 50000, i-viscosity yangaphakathi 0.78 -0.85cm3 / g).NgokoMthetho weSizwe woKhuseleko lokuTya, izinto zokubuyisela okwesibini aziyi kusetyenziselwa ukutya kunye nokupakishwa kwamayeza.Isitofu esibunjiweyo sangaphambili singasetyenziswa ukuya kuthi ga kwi-24h.Iipreforms ezingakhange zisetyenziswe emva kokufudumeza kufuneka zigcinwe ngaphezulu kweeyure ezingama-48 ukuze ziphinde zifudunyezwe.Ixesha lokugcinwa kweepreforms alikwazi ukudlula kwiinyanga ezintandathu.
Umgangatho we-preform uxhomekeke kumlinganiselo omkhulu kumgangatho wezinto ze-PET.Izinto ezilula ukudumba kwaye kulula ukubumba kufuneka zikhethwe, kwaye inkqubo yokubumba i-preform efanelekileyo kufuneka isetyenziswe.Iimvavanyo zibonise ukuba ii-preforms ezithunyelwa ngaphandle ezenziwe ngezinto ze-PET ezine-viscosity efanayo zilula ukuvuthela isikhunta kunezixhobo zasekhaya;ngelixa ibhetshi enye yee-preforms zinemihla yokuvelisa eyahlukileyo, inkqubo yokubumba isivuthelo isenokwahluka kakhulu.Umgangatho we-preform umisela ubunzima benkqubo yokubumba.Iimfuno ze-preform zicocekile, ukungafihli, akukho kungcola, akukho mbala, kunye nobude bendawo yokutofa kunye ne-halo ejikelezileyo.
2.2 Ukufudumeza
Ukufudumala kwe-preform kugqitywe nge-oven yokufudumala, ukushisa okubekwe ngesandla kwaye kulungiswe ngokusebenzayo.Kwi-oveni, ityhubhu yesibane esine-infrared ibhengeza ukuba i-infrared ekhanyayo itshisa i-preform, kwaye ifeni esezantsi kwi-oven ijikeleza ubushushu ukwenza ubushushu ngaphakathi kwi-oveni bulingane.I-preforms ijikeleza kunye kunye nokuhamba phambili kwi-oven, ukwenzela ukuba iindonga ze-preforms zifudumale ngokufanayo.
Ukubekwa kwezibane kwi-oven ngokuqhelekileyo kwimilo ye "zone" ukusuka phezulu ukuya phezulu, kunye neziphelo ezininzi kunye nephakathi.Ukushisa kwe-oven kulawulwa ngenani lokuvuleka kwesibane, ukusetwa kweqondo lokushisa ngokubanzi, amandla e-oven kunye nomlinganiselo wokufudumeza kwecandelo ngalinye.Ukuvulwa kombhobho wesibane kufuneka kulungiswe ngokubambisana nebhotile yangaphambili.
Ukwenza i-oven isebenze ngcono, ukulungiswa kokuphakama kwayo, ipleyiti yokupholisa, njl.Ukuba uhlengahlengiso aluchanekanga, kulula ukudumba umlomo webhotile (umlomo webhotile uba mkhulu) kunye nentloko eqinile nentamo (impahla yentamo ayikwazi ukutsalwa ivuleke) ngexesha lokubumba kunye nezinye iziphene.
2.3 Ukuvuthela kwangaphambili
Ukuvuthela kwangaphambili linyathelo elibaluleke kakhulu kwindlela yokuvuthela ibhotile enamanyathelo amabini.Ibhekiselele ekuvutheleni kwangaphambili okuqala xa ibha yokuzoba isihla ngexesha lenkqubo yokubumba, ukuze i-preform ithathe imilo.Kule nkqubo, i-orientation yangaphambili yokuvuthela, uxinzelelo lwangaphambili kunye nokuhamba ngokuvuthela zizinto ezintathu ezibalulekileyo zenkqubo.
Ubume bemilo yebhotile yangaphambili yokuvuthela inquma ubunzima benkqubo yokubumba kunye nomgangatho womsebenzi webhotile.Imilo yebhotile yesiqhelo yaphambi kokuvuthela imile okwe-spindle, kwaye ezo zingaqhelekanga ziquka ukumila kwe-sub-bell kunye ne-handle shape.Isizathu semilo engaqhelekanga kukufudumeza okungafanelekanga kwendawo, ukungonelanga koxinzelelo lwangaphambili lokuvuthela okanye ukuvuthela, njl njl.Kwimveliso, ubungakanani kunye nokumila kwazo zonke iibhotile zangaphambili zokuvuthela kwisixhobo sonke kufuneka zigcinwe ngokufanayo.Ukuba kukho umahluko, kufuneka kufunyanwe izizathu ezineenkcukacha.Inkqubo yokufudumeza okanye yokuvuthela kwangaphambili ingalungiswa ngokwemiqathango yebhotile yangaphambili.
Ubungakanani boxinzelelo lokuvuthela kwangaphambili buhluka kunye nobukhulu bebhotile kunye nomthamo wezixhobo.Ngokuqhelekileyo, umthamo mkhulu kwaye uxinzelelo lwangaphambi kokuvuthela luncinci.Isixhobo sinomthamo ophezulu wokuvelisa kunye noxinzelelo oluphezulu lokuvuthela kwangaphambili.
2.4 Umatshini oncedisayo kunye nokungunda
Umatshini oncedisayo ubhekiselele kwisixhobo esigcina ubushushu bokungunda bungatshintshi.Ukushisa okungapheliyo kwesikhunta sidlala indima ebalulekileyo ekugcineni ukuzinza kwemveliso.Ngokuqhelekileyo, iqondo lokushisa lomzimba webhotile liphezulu, kwaye iqondo lokushisa lebhotile liphantsi.Kwiibhotile ezibandayo, ngenxa yokuba umphumo wokupholisa ezantsi unquma iqondo lokuqhelaniswa ne-molecular, kungcono ukulawula ukushisa kwi-5-8 ° C;kwaye iqondo lokushisa ezantsi kwebhotile eshushu liphezulu kakhulu.
2.5 Indalo esingqongileyo
Umgangatho wobume bemveliso nawo unempembelelo enkulu kuhlengahlengiso lwenkqubo.Iimeko zokushisa ezizinzileyo ziyakwazi ukugcina ukuzinza kwenkqubo kunye nokuzinza kwemveliso.Ukubumba ukuvuthela kwebhotile ye-PET ngokuqhelekileyo kungcono kwiqondo lobushushu begumbi kunye nokufuma okuphantsi.
3. Ezinye iimfuno
Ibhotile yoxinzelelo kufuneka yanelise iimfuno zovavanyo loxinzelelo kunye novavanyo loxinzelelo kunye.Uvavanyo loxinzelelo kukuthintela ukuqhekeka kunye nokuvuza kwekhonkco le-molecular ngexesha loqhagamshelwano phakathi kwezantsi kwebhotile kunye ne-lubricant (alkaline) ngexesha lokuzaliswa kwebhotile ye-PET.Uvavanyo loxinzelelo kukuphepha ukuzaliswa kwebhotile.Ukulawulwa komgangatho emva kokugqabhuka kwigesi ethile yoxinzelelo.Ukwanelisa ezi mfuno zimbini, ubukhulu bendawo ephakathi kufuneka ilawulwe kuluhlu oluthile.Imeko eqhelekileyo kukuba inqaku eliphakathi lincinci, uvavanyo loxinzelelo lulungile, kwaye ukunyanzeliswa koxinzelelo kubi;indawo esembindini ijiyile, uvavanyo loxinzelelo lulungile, kwaye uvavanyo loxinzelelo lubi.Ngokuqinisekileyo, iziphumo zovavanyo loxinzelelo nazo zihambelana ngokusondeleyo nokuqokelela kwezinto ezibonakalayo kwindawo yenguqu ejikeleze indawo ephakathi, ekufuneka ilungiswe ngokuhambelana namava asebenzayo.
4. Isiphelo
Ukulungelelaniswa kwenkqubo yokubumba ibhotile ye-PET isekelwe kwidatha ehambelanayo.Ukuba idatha ihlwempuzekile, iimfuno zenkqubo zingqongqo kakhulu, kwaye kunzima nokuvuthela ukubumba iibhotile ezifanelekileyo.
Ixesha lokuposa: May-09-2020