M’dziko lamasiku ano lofulumira, matumba apulasitiki akhala mbali yofunika kwambiri ya moyo wathu watsiku ndi tsiku. Kuyambira pogula golosale mpaka kulongedza katundu, matumba osunthikawa ali ndi ntchito zosiyanasiyana. Komabe, kupanga matumba apulasitiki ndi njira yovuta yomwe imaphatikizapo makina apadera otchedwa makina opangira mapepala apulasitiki. M'nkhaniyi, tiwona momwe makinawa amagwirira ntchito ndikuwunikanso zinthu zomwe zimagwiritsidwa ntchito popanga matumba apulasitiki.
Makina opangira matumba apulasitikiamapangidwa kuti azipanga matumba apulasitiki mogwira mtima komanso mokweza kwambiri. Makinawa amatha kupanga matumba amitundu yosiyanasiyana, kuphatikiza zikwama zafulati, matumba a gusset, matumba a vest, ndi zina zambiri. Ntchitoyi imakhala ndi njira zingapo zofunika:
1. Zopangira: Zopangira zazikulu zamatumba apulasitiki ndi polyethylene, yomwe imakhala yosiyana kwambiri, monga polyethylene (LDPE) yotsika kwambiri (LDPE) ndi polyethylene yapamwamba (HDPE). Makina opangira thumba la pulasitiki amayamba kudyetsa ma pellets apulasitiki mu extruder.
2. Extrusion: Extruder imasungunula mapepala apulasitiki ndikupanga chubu chosalekeza cha pulasitiki yosungunuka. Izi ndizofunikira chifukwa zimatsimikizira makulidwe ndi mtundu wa chinthu chomaliza.
3. Kuwomba ndi Kuzizira: Pankhani ya filimu yowombedwa, mpweya umawomberedwa mu chubu chosungunuka kuti uwonjezere kupanga filimu. Kanemayo ndiye atakhazikika ndi kulimba pamene akudutsa mndandanda wa odzigudubuza.
4. Kudula ndi Kusindikiza: Filimuyo ikapangidwa, imadulidwa mpaka kutalika kofunikira ndikusindikizidwa pansi kuti ipange thumba. Kusindikiza kungaphatikizepo kusindikiza kutentha kapena kusindikiza kwa ultrasonic, malingana ndi mapangidwe a makina ndi mtundu wa thumba lomwe likupangidwa.
5.Kusindikiza ndi Kumaliza: Makina ambiri opangira matumba apulasitiki ali ndi luso losindikiza lomwe limalola opanga kusindikiza ma logo, mapangidwe, kapena mauthenga mwachindunji pamatumba. Pambuyo posindikiza, matumbawo amawunikiridwa bwino asanapakidwe kuti agawidwe.
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LQ-700 makina ndi osindikiza pansi perforation thumba thumba makina. Makina ali ndi magawo awiri a makona atatu V-khola, ndipo filimu imatha kupindika nthawi imodzi kapena kawiri. Chinthu chabwino kwambiri ndi chakuti malo a makona atatu akhoza kusinthidwa. Mapangidwe a makina osindikizira ndikubowoleza poyamba, kenako pindani ndikubwezeretsanso pomaliza. Kawiri kawiri ma V-folds apangitsa filimu kukhala yaying'ono ndikusindikiza pansi.
Zida zomwe zimagwiritsidwa ntchito kwambiri popanga matumba apulasitiki ndi polyethylene ndi polypropylene. Chilichonse chili ndi zinthu zake, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito zosiyanasiyana.
1. Polyethylene (PE):Izi ndizo zomwe zimagwiritsidwa ntchito kwambiri pamatumba apulasitiki. Zimabwera m'njira ziwiri zazikulu:
- Low Density Polyethylene (LDPE): LDPE imadziwika ndi kusinthasintha kwake komanso kufewa. Amagwiritsidwa ntchito kwambiri popanga matumba a golosale, matumba a mkate, ndi ntchito zina zopepuka. Matumba a LDPE sakhala olimba ngati matumba a HDPE, koma amalimbana ndi chinyezi.
- High Density Polyethylene (HDPE): HDPE ndi yamphamvu komanso yolimba kuposa LDPE. Nthawi zambiri amagwiritsidwa ntchito popanga matumba okhuthala, monga omwe amagwiritsidwa ntchito m'masitolo ogulitsa. Matumba a HDPE amadziwika chifukwa chokana misozi ndipo nthawi zambiri amagwiritsidwa ntchito kunyamula zinthu zolemera.
2. Polypropylene (PP):Polypropylene ndi chinthu china chodziwika bwino cha matumba apulasitiki, makamaka matumba ogulanso ogwiritsidwanso ntchito. Ndiwolimba kuposa polyethylene, imakhala ndi malo osungunuka kwambiri, ndipo ndi yoyenera kugwiritsa ntchito zomwe zimafuna mphamvu ndi kukana kutentha. Matumba a PP amagwiritsidwa ntchito nthawi zambiri kulongedza chakudya chifukwa amapereka chotchinga chabwino ku chinyezi ndi mankhwala.
3. Mapulasitiki osawonongeka:Chifukwa cha nkhawa zomwe anthu akukumana nazo pazachilengedwe, mapulasitiki osawonongeka afala kwambiri m'zaka zaposachedwa. Zidazi zimawonongeka mofulumira kuposa mapulasitiki achikhalidwe, kuchepetsa chilengedwe. Ngakhale matumba omwe amatha kuwonongeka ndi biodegradable akadali ocheperako kuposa matumba a polyethylene ndi polypropylene, amatengedwa kwambiri ndi ogula ndi mabizinesi ozindikira zachilengedwe.
Kupanga ndi kugwiritsa ntchito matumba apulasitiki kwadzetsa mavuto aakulu a chilengedwe. Matumba apulasitiki amayambitsa kuipitsa ndipo amatha kutenga zaka mazana ambiri kuti awole m'malo otayirako. Chifukwa chake, mayiko ndi mizinda yambiri yakhazikitsa ziletso kapena zoletsa kugwiritsa ntchito kamodzi kokha, kulimbikitsa kugwiritsa ntchito njira zina zogwiritsiridwa ntchitonso.
Opanga makina opanga matumba apulasitikiakusinthanso kuti agwirizane ndi zosinthazi, akupanga makina omwe amatha kupanga matumba kapena matumba opangidwa kuchokera kuzinthu zobwezerezedwanso. Kusintha kumeneku sikungothandiza kuchepetsa kukhudzidwa kwa chilengedwe kwa matumba apulasitiki, komanso kumakwaniritsa kufunikira kowonjezereka kwa mayankho okhazikika.
Makina opanga matumba apulasitiki amagwira ntchito yofunika kwambiri popanga chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri pamoyo wathu watsiku ndi tsiku. Kumvetsetsa zinthu zomwe zimagwiritsidwa ntchito popanga matumba apulasitiki, monga polyethylene ndi polypropylene, ndizofunikira kwa onse opanga ndi ogula. Pamene makampani akukula, ndikofunikira kuganizira momwe chilengedwe chimakhudzira kugwiritsa ntchito matumba apulasitiki ndikuwunika njira zina zokhazikika. Mwa kuvomereza zatsopano ndi machitidwe odalirika, titha kugwirira ntchito mtsogolo momwematumba apulasitikiamapangidwa ndi kugwiritsidwa ntchito m'njira yochepetsera kukhudza kwawo padziko lapansi.
Nthawi yotumiza: Nov-04-2024