Tlhahlobo ea Ts'ebetso ea ho Etsa Lesela la PVC ea Otlolla

Lesela le otlolohileng la PVC, e leng thepa ea maiketsetso e otlolohileng haholo ebile e tšoarella nako e telele, e sebelisoa haholo lihlahisoa tsa kantle, litenteng, masela a papatso le lisebelisoa tsa ts'ireletso tsa bongaka. Mokhoa oa eona oa ho theha o ama ka kotloloho sebopeho sa sehlahisoa le bophelo ba ts'ebeletso, ho etsa hore ho be bohlokoa ho tseba mokhoa oa mantlha oa phallo.

Mokhoa oa ho theha lesela la PVC le na le mehato e mene ea bohlokoa: ho kopanya thepa e tala, extrusion calendering, ho otlolla le ho lebisoa, le ho sebetsa-ka poso. Taba ea pele, resin ea polyvinyl chloride (PVC) e tsoakoa le li-additives tse kang plasticizers, stabilizers, le lubricant ka litekanyo tse nepahetseng 'me li qhalakanngoa ka har'a-speed blender ho etsa pente e nang le viscosity e itseng. Khetho ea li-additives sethaleng sena e ama ka ho toba ho fetoha ha thepa, ho hanyetsa boemo ba leholimo le ho hanyetsa UV.

Motsoako ebe o kena ka har'a extruder, moo o qhibilihang ka mocheso o phahameng (hoo e ka bang 160-180 degree) ebe o fetisoa ka T-die ho lakane. Joale lakane e kenngoa ka calender ka li-rollers ho laola botenya le boreleli holim'a metsi. Thempereichara ea calendering e tlameha ho laoloa ka nepo ho qoba ho bola ha lintho tse bonahalang ka lebaka la ho futhumala ho feteletseng kapa khatello ea kelello e ka hare e bakoang ke ho fokotseha ha mocheso.

Ho otlolla le ho tsepamisa maikutlo ke mokhoa oa mantlha o fanang ka lesela le otlolohileng la PVC ka elasticity ea lona e phahameng. Letlapa le futhumatsoa pele (hangata 80-120 degrees ) pele le otlolloa ka mokhoa o sa tsitsang kapa ka biaxially ka mochine o otlollang longitudinal kapa o haolang. Karolelano e otlolohileng hangata ke makhetlo a 2-5, ho hokahanya liketane tsa limolek'hule ka lehlakoreng la matla, ho ntlafatsa haholo bolelele le botsitso ba thepa. Lihlahisoa tse ling tsa maemo a holimo li sebelisa theknoloji ea sequential stretching ho tsoela pele ho ntlafatsa tekano ea mochine.

Qetellong, lesela le otlolohileng le kena mocheso oa mocheso le ho pholile. Ho beha mocheso ho kenyelletsa nako e khuts'oane ea mocheso o phahameng (hoo e ka bang 100-130℃) ho tsitsisa sebopeho sa molek'hule le ho felisa khatello ea maikutlo. Ho pholisa ho etsoa ka moea kapa metsi ho netefatsa botsitso ba mahlakore. Lihlahisoa tse ling li boetse li hloka phekolo e ka holimo, joalo ka lirafshoa tse thibelang UV kapa li-retardants tsa lelakabe, ho ntlafatsa ts'ebetso.

Mokhoa oa ho bopa oa lesela la PVC o hloka taolo e tiileng ea mocheso, lebelo le maemo a tsitsipano. Ho kheloha mohatong ofe kapa ofe ho ka baka ts'ebetso e tlase ea maemo. Likhatelo-pele tsa theknoloji, tse kang ho hlahisoa ha tlhahlobo ea marang-rang le taolo ea boiketsetso, li tsamaisa lits'ebetso tsa sejoale-joale molemong oa katleho e kholo le botsoalle ba tikoloho, ho fana ka litharollo tse phahameng tsa lisebelisoa bakeng sa lits'ebetso tse tlase.