Njira Yodziwika Yopangira ma co-extrude

Tikamalankhula za co-extrude filimu tikutanthauza chiyani?Kodi filimu yomwe timagwiritsa ntchito imapangidwa bwanji?
Filimu yonyamula chakudyaamapangidwa ndi njira ziwiri: Co-extrude ndi Lamination.Lero tikambirana makamaka za co-extruded filimu.Pali njira zitatu zosiyana zopangira co-extrusion: kuwomba, kuziziritsa madzi ndi kuponyera.
Kotero, ndi njira zotani zopangirafilimu yopangira chakudya?
1. Njira yowomba
Kupyolera mu mpweya kuzirala kuti filimu pamwamba kuzirala, kotero akhoza mwamsanga utakhazikika, zofewa, ozungulira kutambasula, mandala ake pang'ono otsika kwa madzi kuzirala ndi kuponyedwa, koma flatness ndi mafilimu ndi bwino kupanga matumba, pamene ozungulira kutambasula wa kupanga kwamkulu-chotchinga chakudya kutambasula filimuductility imakhala ndi zotsatira.
2. Madzi Kuzirala
Kupyolera mu kukhudzana mwachindunji madzi ndi filimu pamwamba kuzirala, kotero akhoza mwamsanga utakhazikika, ozungulira kutambasula, flatness ake ndi pang'ono otsika otaya njira, koma bwino mandala, pamene ozungulira anatambasula kupangamkulu-chotchinga chakudya kutambasula filimuductility imakhala ndi zotsatira.
3. Njira yoponya
Kupyolera mu kuzirala kozizira kozizira, filimu yotchinga kwambiri yotchinga zakudya yomwe imapangidwa nthawi yayitali imakhala yotambasula, yodutsa popanda kutambasula, flatness yonse ndi yabwino, kuwonekera ndi kachiwiri kwa njira yowomba, koma kutambasula kwa ductility kuli bwino.
filimu khumi ndi imodzi otaya co-extruded filimu ntchito otaya kuchedwa ndondomeko, khumi wosanjikiza filimu kapangidwe 1 nthawi co-extrusion akamaumba, kuumba ngati mathithi pambuyo otaya kuchedwa ndondomeko kutsika, pambuyo odzigudubuza madzi ozizira kukhala ozizira kupanga mu filimu pulasitiki, chifukwa filimu yolongedza chakudya palokha siinatambasulidwe, ntchito yabwino ya ductility, ndiyo njira yabwino yotambasulira makina otambasulira filimu, yomwe imagwiritsidwa ntchito pakupanga chakudya chamagulu, kuposa mtundu wamakina a vacuum, kupulumutsa ogwira ntchito, kugwiritsa ntchito bwino kwambiri.
Monga chinthu chachikulu chogwiritsidwa ntchitofilimu yopangira chakudya, zofunikira zosiyanasiyana zosiyanasiyana, zomwe zili mkati mwake zimayikidwa kuchokera ku yaiwisi mpaka yophika, kuchokera kutsika mpaka kutentha kwambiri, kuchokera ku zipatso zatsopano zowonongeka mpaka ku mtedza wolimba, kuchokera ku matumba osungiramo vacuum kupita ku matumba opangira inflatable, makamaka amakwirira mitundu yambiri ya matumba opangira zinthu. .
1. Zofunikira pakudzipatula:Zakudya zambiri zimakhala ndi mafuta ambiri ndi mafuta, mafuta ndi mafuta amatha kukhala ndi okosijeni komanso kuwonongeka, kotero kuti zofunika kwambiri zolepheretsa mpweya,filimu yopangira chakudyamkati mwa kuchuluka kwa chinyezi kapena kuchepa zofunika ndizokwera kwambiri.
2. Ntchito ya chinyezi:chakudya zonse zili ndi chinyezi chenicheni, pamene ma CD zinthu amasankhidwa, pa nkhani ya mikhalidwe processing chakudya, chilinganizo amakhalabe zosasinthika, chinyontho cha chakudya kusintha pang'ono.Zinthu zikasintha, zimakhudza mwachindunji kuchuluka kwa ntchito ya chinyezi cha chakudya, ndipo chinyezi ndi chimodzi mwazinthu zofunika zomwe zimayambitsa kuwonongeka kwa chakudya, bola ngati pali chinyezi chambiri, tizilombo toyambitsa matenda timatha kukula.Pazakudya zosiyanasiyana zokhala ndi chinyezi, zida ndi njira zosiyanasiyana ziyenera kugwiritsidwa ntchito.
a.Chinyezi otsika ntchito chakudya.Mabakiteriya sangathe kupulumuka mu ntchito chinyezi zosakwana 0,65 chakudya, chifukwa chinyezi ntchito zosakwana 0,60 youma chakudya, bola ngati akhoza kukhala youma kwa nthawi yaitali akhoza kukhala wopanda kuwonongeka chakudya chifukwa mabakiteriya.
b.Chakudya chokhala ndi chinyezi chapakati.Pakuti chinyezi ntchito 0.60-0.90 chakudya chapakatikati chinyezi, kusunga chakudya khalidwe njira ndi,vacuum phukusi, kuyika kwa nayitrogeni, kuyika kwa deoxidizer, etc., kuyikidwa muzakudya zamafuta oxidative kuwonongeka, kusinthika kwa chakudya, ndi zina zambiri.
c.Chinyezi apamwamba ntchito chakudya.Pakuti chinyezi ntchito 0.9-1.0 Mipikisano chinyezi dongosolo chakudya, khalidwe kukonza njira: 100 ℃ kapena kuposa Kutentha yolera yotseketsa yolera yotseketsa, kugwiritsa ntchito wa hydrogen peroxide, ma radiation ndi njira yotseketsa ma CD aseptic.
3. Ntchito yolongedza filimu yodzaza ndi inflatable:Ntchito ya kuyika kwa inflatable ndikukulitsa moyo wa alumali, mtundu wa inflatablematumba onyamulandi zofunika zosiyanasiyana.
4. Zofunikira za thumba la chimanga:Mbewu ali ndi kupuma tingati, mbewu zosiyanasiyana pa mpweya adsorption mphamvu zimasiyanasiyana kwambiri, mu matumba aliyense tirigu ma CD, angagwiritsidwe ntchito bwino kudzipatula chakudya ma CD filimu wodzazidwa ndi okosijeni kusunga bwino chakudya inflatable ma CD matumba.
5. Zofunikira za vacuum:Kusungidwa kwapang'onopang'ono kwa oxygen, chinyezi-umboni, zonse kuteteza mtundu wa zinthu ndikupangitsa maonekedwe a katundu kuwoneka bwino, owolowa manja.