Katswiri wopanga makina opangira kutentha.
Chilankhulo
Katswiri wopanga makina opangira kutentha.
Mapangidwe a PVC: PVC ndi polima ya thermoplastic yokhala ndi vinyl chloride monomers. Kapangidwe kake kake kamakupatsani mphamvu, kusinthasintha, komanso kulimba.
Zotchinga za PVC zolimbana ndi okosijeni, nthunzi wamadzi, ndi mpweya wina zimapanga chisankho chabwino kwambiri chosungira kutsitsimuka kwa chakudya ndikutalikitsa moyo wa alumali. Kusinthasintha kwake ndi mphamvu zake zimatsimikizira kuti kulongedza kungathe kupirira zovuta zoyendetsa ndi kusamalira popanda kusokoneza mankhwala omwe amateteza. Kuphatikiza apo, kumveka bwino kwa PVC kumapangitsa kuti zinthu ziziwoneka bwino, zomwe ndizofunikira kwambiri pakukhutitsidwa ndi ogula komanso kutsatsa. Kukana mankhwala kumagwiranso ntchito, kuteteza kuipitsidwa ndi kusunga chiyero cha zakudya.
Mapepala a PVC amagwiritsidwa ntchito popanga njira zosiyanasiyana zopangira chakudya. Izi zimaphatikizapo mapaketi a matuza a chakudya chapayekha, zotengera za clamshell zomwe nthawi zambiri zimagwiritsidwa ntchito ngati zipatso, ndiwo zamasamba, ndi zinthu zophika buledi, ndi matayala a nyama, nkhuku, ndi nsomba zam'madzi. Kusinthasintha kwa PVC kumapangitsa kuti ipangidwe kuti ikhale yotetezeka pazakudya zilizonse, zomwe zimathandizira zosowa zosiyanasiyana zamsika.
a.Makina Opanga Kupanikizika Kwambiri
Negative Pressure Forming, yomwe imadziwikanso kuti vacuum forming, ndi njira yosavuta yopangira thermoforming pomwe pepala lotenthetsera la PVC limakulungidwa pa nkhungu ndikukakamizidwa ndi vacuum. Ukadaulowu ndiwoyenera makamaka kupanga mapangidwe atsatanetsatane pamitengo yotsika, yomwe ndiyofunikira kwambiri pamsika wampikisano wazakudya. Kugwiritsa ntchito kukakamiza koyipa kumatsimikizira kuti pepala la PVC likugwirizana ndendende ndi nkhungu, zomwe zimapangitsa kuti pakhale makulidwe a yunifolomu komanso mawonekedwe osasinthika pazomaliza.
Mofanana ndi ntchito ya Negative Pressure Forming Machine, Pulasitiki Vacuum Forming Machine imatenganso izi popereka chiwongolero cholondola pakupanga. Kulondola kumeneku ndikofunikira popanga zonyamula zazakudya zomwe zimakhudzidwa kwambiri, pomwe zopatuka zing'onozing'ono zimatha kuwononga kapena kuipitsidwa. Kuthekera kwa makinawo kuti azitha kupanga zinthu zambiri kumapangitsa kuti ikhale yabwino kukwaniritsa kufunikira kwamakampani opanga zakudya.
a. Zolepheretsa: PVC imapereka zotchinga zabwino kwambiri polimbana ndi mpweya, chinyezi, ndi mpweya wina, womwe umathandizira kusunga kutsitsi komanso kukulitsa moyo wa alumali wazakudya. Izi ndizofunikira makamaka pazinthu zowonongeka monga nyama, mkaka, ndi zakudya zomwe zatsala pang'ono kudyedwa.
b. Mphamvu zamakina: Mphamvu ndi kulimba kwa PVC kumapangitsa kuti zisagwirizane ndi kukhudzidwa ndi kung'ambika, kupereka chitetezo chodalirika chazakudya panthawi yoyendetsa ndikugwira. Izi zimachepetsa chiwopsezo chophwanya ma phukusi omwe angayambitse kuwonongeka kwa chakudya kapena kuipitsidwa.
c. Mtengo wake: PVC ndiyotsika mtengo kupanga poyerekeza ndi ma polima ena ambiri omwe amagwiritsidwa ntchito popanga zakudya. Kutsika mtengo kumeneku kumapangitsa kukhala njira yowoneka bwino kwa opanga omwe akufuna kuchepetsa ndalama zomwe amawononga ndikusunga miyezo yapamwamba kwambiri yonyamula.
d. Kusinthasintha: Kusinthasintha kwa PVC kumapangitsa kuti ipangidwe m'mawonekedwe ndi makulidwe osiyanasiyana, kukhala ndi zakudya zosiyanasiyana. Kuchokera pamakanema opyapyala mpaka zotengera zolimba, PVC imatha kupangidwa mosavuta kuti ikwaniritse zosowa zapadera.
e. Kuwonekera: Kumveka bwino kwa PVC kumatsimikizira kuti malonda akuwoneka kwa ogula popanda kutsegula, kupititsa patsogolo kukopa kwazinthu ndikuwongolera chisankho chogula. Kuwonekera kumeneku ndikofunikira kuti ogula akhulupirire komanso kukhutitsidwa.
f. Kukaniza Chemical: PVC imagonjetsedwa ndi mafuta, mafuta, ndi mankhwala ambiri, zomwe zimapangitsa kuti zikhale zoyenera kunyamula zakudya zosiyanasiyana popanda chiopsezo cha kuyanjana kwa mankhwala komwe kungasokoneze chitetezo cha chakudya.
Ngakhale PVC imapereka zabwino zambiri, kukhudzidwa kwake ndi chilengedwe ndi nkhani yotsutsana. Kudetsa nkhawa kwa kukhazikika kwa kugwiritsa ntchito PVC pakuyika chakudya kumangoyang'ana pa moyo wake - kuyambira kupanga mpaka kutaya. Kupita patsogolo kwamakono pamakina obwezeretsanso kwayamba kuchepetsa nkhawazi powongolera kukonzanso kwa PVC. Kuphatikiza apo, makampaniwa akupita kuzinthu zowonjezera zowonjezera zachilengedwe kuti apititse patsogolo kuwonongeka kwa PVC pakagwiritsidwa ntchito.
M'malo osunthika opangira zakudya, zida zamapepala a PVC zimawonekera ngati njira yosunthika komanso yothandiza, yopereka zabwino zambiri kwa opanga, ogulitsa, ndi ogula. Pomvetsetsa katundu wawo, ntchito, ndi makina okonza, okhudzidwa atha kugwiritsa ntchito PVC kuti apititse patsogolo khalidwe lazinthu, kukhathamiritsa kupanga bwino, ndi kukwaniritsa miyezo yoyendetsera bwino. Komabe, zovuta zokhazikika zomwe zimagwirizanitsidwa ndi PVC zikugogomezera kufunikira kopitilira luso komanso mgwirizano kuti zitsimikizire kuti magwiridwe antchito ndi udindo wa chilengedwe pazakudya.
Katswiri wopanga makina opangira kutentha.
