Say istruktura na tornilyo so direktan mangaapekta ed kalaknab na sarayan epekto. Saray kaslakan ya injection molding screw structure et kaiba so split-type, barrier-type, tan flow-diverting screws ya ginawa pian napaaligwas so kalidad na plasticizing. Say bariles et sakey a pabilog a tubo ya walay discharge port ed pegley. Legan na proseso na panagplastik, say puersa ya mamapaarap ed iyaabante tan panaglaok et manlalapud relatibon panag-ikot na tornilyo tan bariles.
Base ed nanduruman klase na plastik ed screw channel, say tornilyo et kaslakan ya naapag ed taloran seksion: say solid conveying section (tatawagen met ya feeding section), say melting section (tatawagen met ya compression section), tan say homogenization section (tatawagen met ya metering section).
(1) Saray Manunan Prinsipyo na Panag-Plasticize na Molding
Say plastik et tuloytuloy ya onaabante panamegley na pangiyakar na manpapawil-pawil ya tornilyo. Legan na sayan galaw, say plastik et ondalan ed nankakasakey ya epekto na pampainit na bariles, petang na pan-screw, tan petang na panag-gupit, ya kalkalnan onlelemek tan diad kaunoran et magmaliw ya natunaw (salanti, diad tinunaw ya viscous flow state). Say natunaw et itulak ed ulo na tornilyo tan isimpen ed lugar ed arap na bariles (salanti, say panagsimpenan) panamegley na manpapawil-pawil a tornilyo. Say natunaw ed panagsimpenan et walay pressure to, ya onkikiwas ed tornilyo, ya ontutulak ed satan ya onatras. No kasin makaatras so tornilyo tan say kapeles na iyaatras to et mandedepende ed kabaleg na nanduruman resistensya ya kaukolan ton talonaan (singa say frictional resistance, say backflow resistance na working oil ed injection cylinder, salanti, say back pressure na injection cylinder, ya tatawagen met ya screw back pressure, tan arum nira). Lapud say injection screw et walaan met na paatras ya linear ya galaw legan ya manpapalikdo, say proseso na panagplastik et magmaliw ya mas komplikado. Diad kaplesan, anggapo ni so matatken lan teorya ya mangideskribe ed sayan proseso, tan dakel a desinyo na istruktura so nibase ed eksperiensya.
(2) Manunan Terminolohiya na Istruktura na Tornilyo tan Saray Mikonektaan ya Gawaen
Seksion na Panagpakan: Say seksion na panagpakan et tugyopen na sakey a pasen a pangipakan (ya tatawagen met ya cooling hopper zone), sakey a solidon pasen a panagbiahe, tan sakey a transitional lag zone. Say manunan gagala to et say pangi-compact tan pangiyakar ed plastik. Say proseso na pantratrabaho na sayan seksion et onia: Kayari na iloob na plastik ed tornilyo manlapud feeding hopper, saya so iyakar tan i-compact ed unaan lapud panlalaban na loob na dingding na bariles tan say tapew na tornilyo diad silong na kiwas na manpapawil-pawil a tornilyo. Kaslakan, say plastik et iyaarap ed unaan ya malet ed seksion na panagpakan.
Base ed saray obserbasyon ed eksperimento, kaslakan et diad sampot na feeding section, lapud mabiskeg ya frictional heat, say plastik ya akasabi ed loob na dingding na bariles et akasabi lad viscous flow temperature tan ginmapon natunaw, kanian walay transition zone.
(3) Seksion na Kompresyon
Say gagala na sayan seksion et pian lalon na-compact tan na-plasticize so plastik, napilitan so dagem ya akapaliber ed plastik ya ompawil ed feeding port parad discharge, tan napaaligwas so thermal conductivity na plastik. Say screw channel ed sayan seksion et nepeg ya klase na compression. Say proseso na pantratrabaho et onia: No say plastik et onloob ed melting section manlapud feeding section, legan ya say plastik et mantutultuloy ya iyaarap ed unaan, tan lapud kalkalnan iyaawang na screw groove, ontan met ed obstruction effect na filter screen, diverter plate, tan die head, say plastik et kalkalnan manporma na atagey a presyon tan lalon onkupas. Diad saman met a panaon, say materyal et napapainit ed paway na bariles tan mabiskeg a panag-ipit, panag-itimpla, tan panag-gupit ed baetan na tornilyo tan bariles, a sengegan na tuloytuloy ya itatagey na temperatura na plastik. Say karakel na tinunaw ya plastik (ya tatawagen ya liquid phase odino tinunaw ya pool) et tuloytuloy ya ondarakel, bangta say karakel na ag natunaw ya solidon plastik (ya tatawagen ya solid phase o solid bed) et tuloytuloy ya onbabawas. Diad sampot na seksion na panagtunaw, amin odino karaklan ed plastik et natunaw tan magmaliw ya viscous flow state.
