Aluminiyamu ❖ kuyanika osati ndi makhalidwe a filimu pulasitiki, komanso kumlingo wina m'malo zojambulazo aluminiyamu, amatenga mbali kuwongolera mankhwala kalasi, ndi mtengo wotsika.Chifukwa chake, amagwiritsidwa ntchito kwambiri pakuyika masikono ndi zakudya zokhwasula-khwasula.Komabe, popanga, nthawi zambiri pamakhala vuto la kusamutsidwa kosanjikiza kwa aluminiyamu, komwe kumabweretsa kuchepa kwa mphamvu ya filimu yophatikizika, zomwe zimapangitsa kuchepa kwa magwiridwe antchito, komanso kukhudza kwambiri zomwe zili pamapaketi.Zifukwa zosamutsira zokutira za aluminiyamu ndi ziti?Kodi tiyenera kuyang'ana chiyani pakugwiritsa ntchito ukadaulo wa kompositi?
Chifukwa chiyani zokutira za aluminiyamu zimakhala zosavuta kuti delamination?
Pakalipano, mafilimu omwe amagwiritsidwa ntchito kwambiri ndi aluminiyumu plating film CPP aluminium plating film ndi PET aluminiyamu plating film, ndipo mawonekedwe ofanana ndi mafilimu monga OPP/CPP aluminium plating, PET/CPP aluminiyamu plating, PET/PET aluminiyamu, ndi zina zotero.Pakugwiritsa ntchito, vuto lalikulu kwambiri ndi PET composite PET aluminiyamu plating.
Chifukwa chachikulu cha izi ndikuti monga gawo laling'ono la aluminiyamu plating, CPP ndi PET zimakhala ndi kusiyana kwakukulu muzinthu zamakokedwe.PET imakhala yolimba kwambiri, ndipo ikaphatikizidwa ndi zinthu zomwe zimakhalanso zolimba kwambiri,panthawi yochiritsira filimu yomatira, kukhalapo kwa mgwirizano kungayambitse kuwonongeka kwa zomatira za aluminiyamu, zomwe zimatsogolera kusamuka kwa zokutira za aluminium.Komanso, permeation zotsatira za zomatira palokha amakhalanso ndi zotsatira zina pa izo.
Chenjezo pa nthawi ya ntchito yophatikiza
Pogwiritsa ntchito njira zophatikizika, ziyenera kukumbukiridwa pazinthu izi:
(1) Sankhani zomatira zoyenera.Pamene gulu zitsulo zotayidwa ❖ kuyanika, kusamala kuti ntchito zomatira ndi otsika mamasukidwe akayendedwe, monga otsika mamasukidwe akayendedwe zomatira ndi yaing'ono maselo kulemera ndi ofooka intermolecular mphamvu, kuchititsa amphamvu maselo ntchito ndipo sachedwa kuwononga adhesive awo ku gawo lapansi kudzera ❖ kuyanika zitsulo zotayidwa. kanema.
(2) Limbikitsani kufewa kwa filimu yomatira.Njira yeniyeni ndi kuchepetsa kuchuluka kwa kuchiritsa wothandizila pokonzekera zomatira ntchito, kuti kuchepetsa mlingo wa crosslinking anachita pakati pa wothandizila waukulu ndi wochiritsa wothandizira, potero kuchepetsa brittleness wa zomatira filimu ndi kukhalabe kusinthasintha wabwino ndi extensibility, zomwe zimathandizira kuwongolera kusamutsa kwa zokutira za aluminiyamu.
(3) Kuchuluka kwa guluu kuyenera kukhala koyenera.Ngati kuchuluka kwa zomatira komwe kumagwiritsidwa ntchito kuli kochepa kwambiri, mosakayikira kumapangitsa kuti pakhale kutsika kophatikizika komanso kupukuta kosavuta;Koma ngati kuchuluka kwa zomatira zomwe zimagwiritsidwa ntchito ndizokulirapo, sizili bwino.Choyamba, si ndalama.Kachiwiri, kuchuluka kwa zomatira zomwe zimagwiritsidwa ntchito komanso nthawi yayitali yochiritsa imakhala ndi mphamvu yolowera pagawo la aluminiyamu.Choncho guluu wokwanira uyenera kusankhidwa.
(4) Yesetsani kuti musamakangane bwino.Pamene mukumasula plating ya aluminiyamu,kukangana kuyenera kuyendetsedwa bwino osati mochuluka kwambiri.Chifukwa chake ndi chakuti zokutira za aluminiyumu zimatambasulidwa pansi pazovuta, zomwe zimapangitsa kuti pakhale zotanuka.Kupaka kwa aluminium ndikosavuta kumasula ndipo kumamatira kumachepetsedwa.
(5) Kukhwima msanga.M'malo mwake, kutentha kwa machiritso kuyenera kukulitsidwa kuti kufulumizitsa kuthamanga kwa machiritso, kuti ma molekyulu omatira azitha kulimbitsa ndikuchepetsa kuwonongeka kwa kulowa mkati.
Zifukwa zazikulu zosinthira aluminium plating
(1) Zomwe zimayambitsa kupsinjika kwamkati mu guluu
Pa kutentha kwapamwamba kwambiri kuchiritsa kwa zigawo ziwiri zomatira, kupsinjika kwamkati komwe kumapangidwa ndi kuphatikizika kofulumira pakati pa wothandizira wamkulu ndi wothandizira kuchiritsa kumayambitsa kusamutsa kwa aluminiyamu plating.Chifukwa ichi chikhoza kuwonetsedwa kudzera mukuyesera kosavuta: ngati zokutira za aluminiyamu sizikuikidwa m'chipinda chochiritsira ndipo zimachiritsidwa kutentha (zimatenga masiku angapo kuti zichiritse, popanda kufunikira kwa kupanga, kuyesa chabe), kapena kuchiritsidwa. kutentha kwa maola angapo musanalowe m'chipinda chochiritsira, chodabwitsa cha kusamutsidwa kwa aluminiyamu chidzachepetsedwa kwambiri kapena kuchotsedwa.
Tidapeza kuti kugwiritsa ntchito zomatira zolimba 50% pamakanema opanga aluminiyamu, ngakhale zomatira zolimba zotsika, zitha kubweretsa kusintha kwabwinoko.Izi zili choncho chifukwa dongosolo la maukonde opangidwa ndi otsika olimba zomatira pa crosslinking ndondomeko si wandiweyani monga dongosolo maukonde opangidwa ndi zomatira mkulu olimba okhutira, ndi kupsyinjika kwaiye kwaiye si yunifolomu, amene si kokwanira wandiweyani ndi uniformly. gwiritsani ntchito zokutira za aluminiyumu, potero kuchepetsa kapena kuthetsa chodabwitsa cha kusamutsidwa kwa aluminiyumu.
Pokhapokha kusiyana pang'ono pakati pa zomatira zazikulu ndi zomatira wamba, zomatira zomatira za aluminiyamu nthawi zambiri zimakhala zochepa kuposa zomatira wamba.Palinso cholinga chochepetsera kapena kuchepetsa kupsinjika kwamkati komwe kumapangidwa ndi zomatira zophatikizira panthawi yochiritsa, kuti muchepetse kusanja kwa aluminiyamu plating wosanjikiza.Kotero panokha, ndikukhulupirira kuti njira "yogwiritsa ntchito kutentha kwachangu kulimbitsa mphamvu kuti athetse kusamutsidwa kwa zokutira zotayidwa" sizingatheke, koma zimakhala zotsutsana.Opanga ambiri tsopano amagwiritsa ntchito zomatira zokhala ndi madzi pamene mafilimu opangidwa ndi aluminiyamu akuphatikiza, omwe amathanso kuwonetseredwa ndi mawonekedwe a zomatira zamadzi.
(2) Zifukwa kutambasula mapindikidwe wa mafilimu woonda
Chochitika china chodziwikiratu cha kusamutsa kwa aluminiyamu plating nthawi zambiri chimapezeka m'magulu atatu osanjikiza, makamaka m'mapangidwe a PET/VMPET/PE.Nthawi zambiri, timayamba kupanga PET/VMPET.Mukaphatikizika munsanjika iyi, zokutira za aluminium nthawi zambiri sizisamutsidwa.Kupaka kwa aluminiyumu kumangosinthidwa pambuyo pa gawo lachitatu la PE ndi gulu.Kupyolera mu kuyesa, tinapeza kuti pamene peeling atatu wosanjikiza gulu chitsanzo, ngati kuchuluka kwa mavuto ntchito chitsanzo (ie yokumba kumangitsa chitsanzo), zotayidwa ❖ kuyanika sadzakhala kusamutsa.Kupanikizika kukachotsedwa, zokutira za aluminiyamu zimasamutsidwa nthawi yomweyo.Izi zikuwonetsa kuti shrinkage deformation ya filimu ya PE imapanga zotsatira zofanana ndi kupsinjika kwamkati komwe kumapangidwa panthawi yopangira zomatira.Choncho, pamene mankhwala ophatikizika okhala ndi mawonekedwe atatu osanjikiza, kusinthika kwamphamvu kwa filimu ya PE kuyenera kuchepetsedwa momwe kungathekere kuchepetsa kapena kuthetsa chodabwitsa cha kusamutsidwa kwa aluminiyamu.
Chifukwa chachikulu chosinthira aluminium plating ndikusinthiratu filimu, ndipo chifukwa chachiwiri ndi zomatira.Nthawi yomweyo, zomanga za aluminiyamu zokhala ndi mantha amawopa kwambiri madzi, ngakhale dontho lamadzi litalowa mu gulu la filimu yopangidwa ndi aluminiyamu, zingayambitse delamination kwambiri.
Nthawi yotumiza: Oct-28-2023
