Plastic extrusion inzira iyo plastiki inonyungudutswa uye inoumbwa kuita fomu inoenderera.Maitiro aya anoshandiswa kugadzira zvinhu zvakaita sepombi, fenzi, tubing, waya yekuvharisa, mafaremu emahwindo, uye njanji…
Plastics Processing uye Manufacturing
Plastics mapolymer ane huremu hwemamorekuru.Mapurasitiki anowanikwa mumhando dzakasiyana dzezvigadzirwa, kubva mukati memotokari kusvika kune mapaipi.Kugadziriswa kwePurasitiki nekugadzirwa kunosanganisira matanho matatu akakosha: 1) kupa humwe hunhu kune epurasitiki resin ane makemikari ekuwedzera, anosanganisira mafuta ekuzora, flame retardant agents, colorants uye plasticizers;2) kushandura zvinhu zvakasvibirira (maplastic granules, pellets, sheets, fluids kana preformed mapurasitiki) kuita zvepakati kana zvekupedzisira zvimiro;uye 3) kupedzisa chigadzirwa kuburikidza nekuumba / kuumba maitiro, senge jekiseni molding kana extrusion.Jekiseni kuumba kunosanganisira kudziyisa magranules kana mapellets kumvura inoyerera uye kumanikidza jekiseni repurasitiki remvura muforoma inotonhora yekugadzika.Kuwedzeredza kunosanganisira kusunda zvinhu zvepurasitiki zvemvura kuburikidza nedhifa kugadzira mafomu akareba, anoenderera, senge pombi kana machubhu.
The Basic Process of Plastic Extrusion
Maitiro acho anoshandisa purasitiki resin, ari madiki mabhero epurasitiki, anodyiswa kuburikidza nehopper mudhiramu rinopisa re extruder.Ikoko, screw inotenderera, iyo inowanzotendeuka pa120 rpm, inosaidzira resin kuburikidza nedhiramu sezvo inowanzonyungudutswa chero kupi zvako kubva 392 madhigirii kusvika 527 madhigirii Fahrenheit, zvichienderana nepolymer iyo resin inogadzirwa nayo.Kuti ubatsire kuderedza njodzi yekupisa resin, kupisa kunowedzera zvishoma nezvishoma kubva kune rumwe rutivi rwebhodhoro kune rumwe.
Kumberi kwedhiramu, pane chidzitiro chinosundirwa resin yakanyungudika kubatsira kusefa chero chingave chakasvibisa resin.Kana iyo yakanyungudutswa thermoplastic resin ichipfuura nepascreen, chubhu yekudyisa inotumira resin kuburikidza nekufa kwakaumbwa, iyo inobva yapa chigadzirwa chimiro chayo.
Ichi chimiro kana chimiro, chinogona kugadzirwa nguva dzose, chero kureba.
Pakupedzisira, chigadzirwa chinofanira kutonhodzwa.Izvi zvinowanzoitwa nenzira yekugeza nemvura.Plastiki inobata kupisa zvakanaka, saka kutonhora kunotora nguva.Nekuda kweizvi, bhati remvura rinowanzovharwa uye chivharo chinoshandiswa kuchengetedza chigadzirwa kubva pakurasikirwa nechimiro chayo pachiri kutonhora.
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Nguva yekutumira: Dec-04-2018