Chidziwitso Choyambira cha Chubu cha Pulasitiki

M'zaka zaposachedwapa, minda yogwiritsira ntchito chubu chokongoletsera cha pulasitikiMapaketi awonjezeka pang'onopang'ono. Zogulitsa zamafakitale zasankha kulongedza chubu chofinyiramonga mafuta odzola, guluu wagalasi, ndi chophikira chophikira; zakudya zasankhidwa kulongedza chubu chofinyira, monga mpiru ndi msuzi wa chili; ndipo mafuta odzola omwe amapangidwa ndi mankhwala asankha machubu. kulongedza chubu chofinyiraikukonzanso nthawi zonse. Zinthu zambiri m'magawo osiyanasiyana zikugwiritsa ntchito "machubu" popaka. Mu chubu chokongoletsera cha pulasitikiMakampani opanga zinthu, machubu amakondedwa chifukwa cha kufinya kwawo mosavuta komanso kugwiritsa ntchito, kulemera kwawo kopepuka komanso kosavuta kunyamula, mawonekedwe osinthika, komanso kusindikiza kosinthika. Amagwiritsidwa ntchito kwambiri popaka zodzoladzola, zinthu zomwe zimagwiritsidwa ntchito tsiku ndi tsiku, komanso zinthu zosamalira tsitsi.

Aluminiyamu ndi pulasitiki wophatikizika chubu chokongoletsera cha pulasitikiMapepala opakidwa ndi zinthu zopangidwa ndi zojambula za aluminiyamu ndi filimu ya pulasitiki pogwiritsa ntchito njira zina zopangira mapepala, zomwe zimakonzedwa kukhala mawonekedwe a chubu ndi makina apadera opangira machubu. Kapangidwe kawo ka nthawi zonse ndi PE/PE+EAA/AL/PE+EAA/PE. Chophatikiza cha aluminiyamu ndi pulasitiki chubu chokongoletsera cha pulasitikiMa s amagwiritsidwa ntchito makamaka popaka zodzoladzola zomwe zimafunikira kwambiri paukhondo ndi zinthu zotchingira. Chotchinga nthawi zambiri chimakhala chotchinga cha aluminiyamu, ndipo chotchinga chake chimadalira kuchuluka kwa dzenje la chotchinga cha aluminiyamu. Chifukwa cha kusintha kosalekeza kwa ukadaulo, makulidwe a chotchinga cha chotchinga cha aluminiyamu m'machubu ophatikizika a aluminiyamu-pulasitiki achepetsedwa kuchoka pa 40μm yachikhalidwe kufika pa 12μm kapena ngakhale 9μm, zomwe zimapulumutsa kwambiri chuma.

Machubu okongoletsa a pulasitiki a PEAmapangidwa potulutsa zinthu zosiyanasiyana pogwiritsa ntchito pulasitiki imodzi imodzi. chubu chokongoletsera cha pulasitikiMachubuwa amagawidwa m'machubu otulutsidwa ndi gawo limodzi ndi machubu otulutsidwa ndi zigawo zambiri. Choyamba chimagwiritsidwa ntchito makamaka popaka zodzoladzola zomwe zimadyedwa mwachangu zomwe zimafunikira mawonekedwe apamwamba koma sizigwira ntchito kwenikweni (monga kirimu wamanja, ndi zina zotero), pomwe chachiwiri chimagwiritsidwa ntchito makamaka popaka zodzoladzola zapamwamba.

Chopangidwa ndi pulasitiki yonse chubu chokongoletsera cha pulasitikiMachubu opangidwa ndi pulasitiki opangidwa ndi pulasitiki amagawidwa m'machubu opangidwa ndi pulasitiki okhala ndi gawo limodzi ndi machubu opangidwa ndi pulasitiki okhala ndi zigawo zambiri. Choyamba chimagwiritsidwa ntchito makamaka popaka zodzoladzola zomwe zimadyedwa mwachangu zomwe zimakhala ndi mawonekedwe apamwamba koma zofunikira zochepa (monga kirimu wamanja, ndi zina zotero), pomwe chomalizachi chimagwiritsidwa ntchito makamaka popaka zodzoladzola zapamwamba.

Machubu ndi kulongedza chubu chofinyiraMabotolo opangidwa kuchokera ku zipangizo monga pulasitiki ya PE, zojambulazo za aluminiyamu, ndi filimu ya pulasitiki kudzera mu co-extrusion ndi njira zina kuti apange mapepala, omwe kenako amasinthidwa kukhala mawonekedwe a chubu ndi makina apadera opanga machubu. Machubu ali ndi ubwino wolemera pang'ono, kusunthika, kulimba, kubwezeretsanso, kufinya kosavuta, komanso kusinthasintha bwino pakukonza ndi kusindikiza, zomwe zimapangitsa kuti akhale otchuka pakati pa opanga zodzoladzola ambiri.