Izinto zokupakisha eziguquguqukayo, ngokufuthi inemigangatho emithathu, emihlanu, esixhenxe, esithoba yefilimu.Uthini umahluko phakathi kweeleya ezahlukeneyo zeefilim?Eli phepha ligxile kuhlalutyo, kwireferensi yakho.
Ukuthelekiswa kwemigangatho emi-5 kunye nemigangatho emi-3
Umaleko womqobokwisakhiwo somaleko amahlanu ngokuqhelekileyo kumbindi, owukhuselayo kumanzi asemoyeni.Ngenxa yokuba umaleko wesithintelo ungundoqo, ezinye izinto zingasetyenziselwa ukuphucula kakhulu ukusebenza komqobo.I-nylon ingasetyenziselwa kwi-core layer, ukwenzela ukuba i-5-layer structure kunye ne-PE surface layer ikwazi ukujongana nezinto ezininzi ezifana nefilimu ye-PE kunye nokuphucula amandla enkqubo.Ngaphezu koko, iprosesa inokusebenzisa i-pigment kumaleko angaphandle ngaphandle kokuchaphazela umaleko wokubopha okanye umaleko wesithintelo.
Iifilim ezintathu zomaleko, ngakumbi ezo zisebenzisa inayiloni, zithande ukugoba ngenxa yeempawu ezahlukeneyo zomzimba kwizakhiwo ze-asymmetric.Kwisakhiwo se-5-layer, ngokuqhelekileyo kusetyenziswe i-symmetric okanye i-symmetric structure ukunciphisa ukunciphisa i-curl.I-crimp kwi-3-layer structure inokulawulwa kuphela ngokusebenzisa i-nylon copolymer.Kwisakhiwo se-5-layer, kuphela xa iprosesa inokusebenzisa inayiloni 6 inokuthi ikwazi ukufumana umaleko wenayiloni malunga nesiqingatha sobunzima bemigangatho emithathu.Oku kugcina iindleko zempahla ekrwada ngelixa ubonelela ngeempawu ezifanayo zomqobo kunye nokuphuculwa kokuqhubela phambili.
Ukuthelekisa phakathi komgangatho we-7 kunye nomgangatho we-5
Kwiifilimu zesithintelo esiphezulu,EVOHisoloko isetyenziswa njengomaleko wesithintelo wokutshintsha inayiloni.Nangona i-EVOH ineempawu ezibalaseleyo zokuthintela ioksijini xa yomile, iya konakala ngokukhawuleza xa imanzi.Ke ngoko, kuqhelekile ukucinezela i-EVOH kwiinqanaba ezimbini ze-PE kwi-5-layer structure ukukhusela umswakama.Kwi-7-layer EVOH isakhiwo, i-EVOH inokunyanzeliswa ibe ngamacandelo amabini e-PE akufutshane, kwaye emva koko ikhuselwe ngumgangatho we-PE wangaphandle.Oku kuphucula kakhulu ukuchasana kwe-oksijeni yonke kwaye kwenza ukuba isakhiwo se-7-layer sithinteke kakhulu kumswakama.
Ukuqhekeka okanye ukukrazula kusenokuba yingxaki kwisakhiwo samabali amahlanu.Ukuphuhliswa kwe-7-layer structure kuya kwenza ukuba i-barrier barrier layer ihlulwe ibe ngamanqwanqwa amabini afanayo ngokudibanisa iileyile ezincinci.Oku kugcina ipropathi yesithintelo ngelixa yenza ipakethe ixhathise ngakumbi ukuphuka okanye ukukrazula.Ngaphezu koko, i-7-layer structure yenza ukuba iprosesa ikrazule umaleko wangaphandle ukunciphisa iindleko zemathiriyeli ekrwada.Iipholima ezibiza kakhulu zinokusetyenziswa njengomaleko ongaphezulu, ngelixa iipholima ezingabizi kakhulu zinokuthatha indawo yomaleko odlulileyo.
Ukuthelekisa phakathi komgangatho we-9 kunye nomgangatho we-7
Ngokuqhelekileyo, inxalenye yesithintelo sefilimu yesithintelo esiphezulu sithatha imigangatho emihlanu kwisakhiwo.Ngenxa yenkqubela phambili kwi-polymer kunye neteknoloji yokucubungula, ipesenti yobunzima obupheleleyo beli candelo kwisakhiwo sonke sihlala sihla, kodwa ukusebenza okufanayo komqobo kugcinwa.
Nangona kunjalo, kusafuneka ukugcina ubukhulu befilimu bubonke.Ukusuka kwi-7 ukuya kwii-9 iileya, iiprosesa zinokufumana owona matshini, ukubonakala kunye nokusebenza kweendleko.Kwiifilimu ezithintelayo eziphezulu, ubuninzi obongezelelweyo obunikezelwa ngumgca we-7-layer okanye i-9-layer extrusion line ingaba yinto eninzi.Ukunyuka kweendleko zokuthenga i-7-layer okanye i-9-layer extrusion line ingaba nexesha lokubuyisela imali engaphantsi konyaka omnye xa kuthelekiswa nomgca wokuvelisa i-5.
Ixesha lokuposa: Mar-05-2021