mankhwala

Zomwe Zimakhudza Mafilimu Aphatikizidwe Ochiritsira & Kupititsa patsogolo Malingaliro

Kuti mupeze zotsatira zabwino zochiritsira, zinthu zingapo ziyenera kuganiziridwa, kuphatikiza:

1. Mawonekedwe a chipinda chochiritsira ndi malo abwino: liwiro ndi kuchuluka kwa mphepo yotentha kuchokera ku chipangizo chotenthetsera ndi ngalande;nthaka ndi mbali ziwiri kapena zingapo za chipinda chochiritsira zimakhala ndi kutentha kokwanira komanso kofanana ndi mphepo yotentha;kusiyana kochepa pakati pa kutentha kwenikweni ndi kukhazikitsidwa, ndi kusunga kutentha ndi kutaya zinyalala kumakwaniritsa zopempha;masikono amafilimu ndi osavuta kusuntha ndi kutenga.

2. Zogulitsa zimakwaniritsa zopempha zaukadaulo.

3. Ntchito, mtengo wa corona, kukana kutentha, ndi zina zotero za fims lamination.

4. Zomatira: zomatira zosungunulira, zomatira zopanda solvent, zomatira zomatira zamadzi amodzi kapena ziwiri, zomatira zotentha zosungunuka, etc.

Pepalali limayang'ana kwambiri mafilimu a lamination ndi zomatira.

1. Mafilimu a Lamination

Mawonekedwe a thupi, kukana kutentha ndi ntchito yotchinga ya filimu ya PE, yomwe imagwiritsidwa ntchito kwambiri, idzakhala yabwinoko, pamene kuchuluka kwa PE kumakwera.Makanema a PE okhala ndi kachulukidwe komweko koma njira zopangira zosiyanasiyana zimakhala ndi machitidwe osiyanasiyana.

CPE imatha utakhazikika mwachangu, ndi crystallinity otsika, kuwonekera mkulu ndi otsika turbidity.Koma dongosolo la mamolekyu limakhala losakhazikika, zomwe zimapangitsa kuti ntchito yake ikhale yoyipa, yomwe imafalikira kwambiri.Ndipo ndi chimodzimodzi ndi LDPE.Chifukwa chake, kutentha kuchiritsa sikuyenera kukhala kokwera kwambiri mukamagwiritsa ntchito makanema a PE.Pamene kukana kwa kutentha kwa PE kukukulirakulira, kutentha kochiritsa kumatha kukhala kokwera.

2. Zomatira

2.1 EthylZomatira zokhazikika

Malingana ndi masewero a mafilimu ndi zomatira, machiritso amatha kugawidwa m'magulu 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. Chapadera, kutentha kuposa 100, nthawi molingana ndi chithandizo chaukadaulo.

Pazinthu zomwe wamba, poganizira za kuchulukana, makulidwe, anti-block, mawonekedwe oletsa kutentha kwamafilimu komanso kukula kwa matumba, kutentha kwa machiritso sikuyenera kukhala kokwera kwambiri.Nthawi zambiri, 42-45kapena pansipa ndikwanira, nthawi 48-72 maola.

Makanema akunja owala, omwe amafunikira magwiridwe antchito apamwamba komanso kukana kutentha kwabwino, ndi oyenera kuchiritsa kutentha kwakukulu, ngati zopitilira 50..Mafilimu amkati, monga PE kapena kutentha kusindikiza CPP, ndi oyenera 42-45, nthawi yochiritsa ikhoza kukhala yayitali.

Zophika zowiritsa kapena zobwezera, zomwe zimafunikira kuchita bwino komanso kukana kutentha kwambiri, ziyenera kugwirizana ndi machiritso omwe fakitale yomatira imapereka.

Kuchiritsa nthawi kuyenera kugwirizana ndi momwe zimakhalira, kugunda kokwanira ndi ntchito yosindikiza kutentha.

Zogulitsa zapadera zingafunike kutentha kwapamwamba kwambiri.

2.2 Zomatira zopanda Solventless

Ngati ntchito yosindikiza ikugwirizana ndi zofunikira, pazinthu zopanda zosungunulira za laminating, zomwe mafilimu amkati ali ndi kachulukidwe kakang'ono, zomatira zimakhala ndi ma monomers ambiri aulere, zomwe zimapangitsa kuti zikhale zovuta kusindikiza.Choncho, kuchiritsa otsika kutentha kumalimbikitsidwa, kwa 38-40.

Ngati chiwopsezo chomaliza chikukwaniritsa zofunikira, nthawi yayitali yochiritsa iyenera kuganiziridwa.

Ngati mafilimu osindikizira kutentha ali ndi kachulukidwe kwambiri, kutentha kwa machiritso kuyenera kukhala 40-45. Ngati kuchuluka kwa kukwaniritsidwa kwa kukwaniritsidwa ndi ntchito yosindikiza kutentha ikufunika kuwongolera, nthawi yochiritsa iyenera kukhala yayitali.

Kuyesa mwamphamvu ndikofunikira musanapange misa, kuti mutsimikizire mtundu wake.

Komanso, chinyezi chiyenera kuganiziridwa.Makamaka pa youma yozizira, yoyenera chinyezi akhoza imathandizira anachita mlingo.

2.3 Zomatira pamadzi

Pamene laminating VMCPP, lamination makina ayenera youma mokwanira, kapena wosanjikiza aluminiyamu adzakhala oxidized.Pakuchiritsa, kutentha sikuyenera kukhala kokwera kwambiri kapena kutsika kwambiri.Kutentha kwakukulu kumabweretsa kugundana kwakukulu.

2.4 Hot Melt Adhesive

Nthawi zambiri sankhani machiritso achilengedwe, koma kugwira ntchito pambuyo pa kusungunuka kuyenera kuzindikirika.

3. Kuwongolera Kwambiri Kuchiritsa Kutentha

Malinga ndi kafukufuku, pamlingo wa zomwe zimachitika, palibe chomwe chimachitika pansi pa 30. Oposa 30, pa 10apamwamba, anachita mlingo bwino za 4 zina.Koma izoSi zolondola kusintha kutentha kuti imathandizira anachita mlingo mwakhungu, zinthu zingapo ziyenera kuzindikirika:zenizeni zomwe zimachitika, kukangana kokwana ndi mphamvu yosindikiza kutentha.

Kuti mupeze zotsatira zabwino zochiritsira, kutentha kwa machiritso kuyenera kugawidwa m'magawo osiyanasiyana, malinga ndi mafilimu ndi mapangidwe a lamination.

Pakalipano, mavuto omwe amapezeka ndi awa:

Choyamba, kutentha kwa machiritso ndikotsika kwambiri, kumapangitsa kuti pakhale kutsika kwambiri, ndipo mankhwalawa amakhala ndi vuto atasindikizidwa kapena kuwiritsa.

Awiri, kuchiritsa kutentha ndi okwera kwambiri ndi otentha kusindikiza filimu ali otsika kachulukidwe.Chogulitsacho chimakhala ndi machitidwe oyipa osindikiza otentha, kukangana kwakukulu komanso zotsatira zoyipa zotsutsana ndi block.

4. Mapeto

Kuti mukwaniritse bwino kuchiritsa, kuchiritsa kutentha ndi nthawi kuyenera kuganiziridwa ndi kutentha kwa chilengedwe ndi chinyezi, momwe filimuyo imagwirira ntchito komanso zomatira.


Nthawi yotumiza: Apr-22-2021