Kuti mupeze zotsatira zabwino pakuchiritsa, zinthu zingapo ziyenera kuganiziridwa, kuphatikizapo:
1. Mtundu wa chipinda chophikira ndi malo abwino: liwiro ndi kuchuluka kwa mphepo yotentha kuchokera ku chipangizo chotenthetsera ndi ngalande; nthaka ndi mbali ziwiri kapena zingapo za chipinda chophikira zimakhala ndi mphepo yotentha yokwanira komanso yofanana kutentha; kusiyana kochepa pakati pa kutentha kwenikweni ndi kokhazikika, ndipo kusunga kutentha ndi kutulutsa zinyalala kumakwaniritsa zopempha; mipukutu ya filimu ndi yosavuta kusuntha ndi kutenga.
2. Zogulitsa zimakwaniritsa zopempha zaukadaulo.
3. Ntchito, mtengo wa korona, kukana kutentha, ndi zina zotero za lamination fims.
4. Zomatira: guluu wosungunulira, guluu wopanda zosungunulira, guluu woyambira madzi umodzi kapena iwiri, guluu wosungunuka wotentha, ndi zina zotero.
Pepalali limayang'ana kwambiri mafilimu ndi zomatira zomatira.
1. Makanema Opaka Lamination
Kagwiridwe ka ntchito ka filimu ya PE, komwe kamagwiritsidwa ntchito kwambiri, kamakhala kolimba, ndipo mphamvu zake zimakhala zotsika kwambiri, pamene mphamvu ya PE ikwera. Mafilimu a PE omwe ali ndi mphamvu yofanana koma njira zosiyanasiyana zopangira zinthu amakhala ndi mphamvu zosiyana.
CPE imatha kuziziritsidwa mwachangu, yokhala ndi kristalo yochepa, kuwonekera bwino kwambiri komanso kutayikira kochepa. Koma kapangidwe ka mamolekyulu sikokhazikika, zomwe zimapangitsa kuti ikhale yoyipa kwambiri, zomwe zimapangitsa kuti ifalikire kwambiri. Ndipo ndi chimodzimodzi ndi LDPE. Chifukwa chake, kutentha kwa cleaving sikuyenera kukhala kwakukulu kwambiri pogwiritsa ntchito mafilimu a PE. Pamene kukana kutentha kwa PE kukukwera, kutentha kwa cleaving kumatha kukhala kwakukulu.
2. Zomatira
2.1 EthylZomatira zochokera
Malinga ndi momwe mafilimu ndi zomatira zimagwirira ntchito, zinthu zochiritsira zimatha kugawidwa m'magawo osiyanasiyana:
1. Kutentha 35℃, nthawi 24-48h
2. Kutentha 35-40℃, nthawi 24-48h
3. Kutentha 42-45℃, nthawi 48-72h
4. Kutentha 45-55℃, nthawi 48-96h
5. Zapadera, kutentha kopitilira 100℃, nthawi malinga ndi chithandizo chaukadaulo.
Pazinthu zodziwika bwino, poganizira kuchulukana, makulidwe, anti-block, magwiridwe antchito a mafilimu oletsa kutentha komanso kukula kwa matumba, kutentha kophikira sikuyenera kukhala kokwera kwambiri. Kawirikawiri, 42-45℃kapena pansi pake ndi yokwanira, nthawi ndi maola 48-72.
Makanema akunja opaka utoto, omwe amafunikira magwiridwe antchito apamwamba komanso kukana kutentha bwino, ndi oyenera kuchiritsa kutentha kwambiri, monga madigiri opitilira 50.℃Makanema amkati, monga PE kapena CPP yotseka kutentha, ndi oyenera 42-45℃, nthawi yochira ikhoza kukhala yayitali.
Zinthu zowiritsa kapena zobweza, zomwe zimafunika kugwira ntchito bwino komanso kukana kutentha kwambiri, ziyenera kugwirizana ndi momwe fakitale yomatira imachitira.
Nthawi yothira iyenera kugwirizana ndi kuchuluka kwa kutha kwa reaction, kuchuluka kwa friction coefficient ndi momwe kutentha kumagwirira ntchito.
Zinthu zapadera zingafunike kutentha kwambiri.
2.2 Chomangira Chopanda Zosungunulira
Ngati ntchito yotseka ikukwaniritsa zofunikira, pazinthu zopangira laminating zopanda zosungunulira, zomwe mafilimu amkati mwake amakhala ndi kachulukidwe kochepa, zomatirazo zimakhala ndi ma monomers ambiri omasuka, zomwe zimapangitsa kuti zikhale zovuta kutseka. Chifukwa chake, kuyeretsa kutentha kochepa kumalimbikitsidwa, kwa madigiri 38-40.℃.
Ngati kuchuluka kwa zomwe zachitika kukukwaniritsa zomwe zikufunika, nthawi yochira iyenera kuganiziridwa nthawi yayitali.
Ngati mafilimu otsekera kutentha ali ndi kuchuluka kwakukulu, kutentha kophikira kuyenera kukhala 40-45℃. Ngati kuchuluka kwa kutha kwa zochita ndi magwiridwe antchito otseka kutentha akufunika kukwera, nthawi yoziziritsira iyenera kukhala yayitali.
Kuyesa koyenera ndikofunikira musanapange zinthu zambiri, kuti muwonetsetse kuti zili bwino.
Komanso, chinyezi chiyenera kuganiziridwa. Makamaka m'nyengo yozizira youma, chinyezi choyenera chingathandize kuti zinthu ziyambe kuchitapo kanthu mwachangu.
2.3 Zomatira Zochokera M'madzi
Popaka lamination pa VMCPP, makina opaka lamination ayenera kukhala ouma mokwanira, apo ayi aluminiyamu idzasungunuka. Pa nthawi yopaka, kutentha sikuyenera kukhala kwakukulu kwambiri kapena kotsika kwambiri. Kutentha kwambiri kumabweretsa kukwera kwa friction coefficient.
2.4 Chomatira Chosungunuka Chotentha
Kawirikawiri sankhani kuchiritsa kwachilengedwe, koma magwiridwe antchito omatira pambuyo posungunuka ayenera kuwonedwa.
3. Yang'anirani Kutentha Kochiritsa Mosamalitsa
Malinga ndi kafukufuku, pankhani ya kuchuluka kwa zomwe zimachitika, palibe pafupifupi zomwe zimachitika pansi pa zaka 30.℃. Zaka zoposa 30℃, 10 zilizonse℃okwera, kuchuluka kwa zochita kumawonjezeka pafupifupi nthawi zinayi. Koma zimateroSikoyenera kusintha kutentha kuti kufulumizitse kuchuluka kwa zochita mosasamala, zinthu zingapo ziyenera kuwonedwa：liwiro lenileni la momwe zinthu zimachitikira, kuchuluka kwa kukangana ndi mphamvu yotseka kutentha.
Kuti mupeze zotsatira zabwino kwambiri zoyeretsera, kutentha kwa kupaka kuyenera kugawidwa m'magawo osiyanasiyana, malinga ndi mafilimu ndi kapangidwe kake ka lamination.
Pakadali pano, mavuto ofala ndi awa:
Choyamba, kutentha kozizira kumakhala kochepa kwambiri, zomwe zimapangitsa kuti pakhale kuyankha kochepa, ndipo mankhwalawa amakhala ndi mavuto akamatsekedwa kapena kuwiritsidwa ndi moto.
Chachiwiri, kutentha kophikira kumakhala kokwera kwambiri ndipo filimu yotsekera yotentha imakhala ndi kachulukidwe kochepa. Chogulitsachi chili ndi magwiridwe antchito oipa otsekera kutentha, kuchuluka kwa kukangana kwakukulu komanso zotsatira zoyipa zotsutsana ndi block.
4. Mapeto
Kuti mupeze zotsatira zabwino kwambiri zophikira, kutentha ndi nthawi yophikira ziyenera kusankhidwa malinga ndi kutentha ndi chinyezi cha chilengedwe, momwe filimu imagwirira ntchito komanso momwe zomatira zimagwirira ntchito.
Nthawi yotumizira: Epulo-22-2021