1. Karo-karolelano ea compression ea screw extruder screw e loketse pakeng tsa 1: 2-1: 3, haholo-holo 1: 2.5, 'me bolelele bo lekaneng ho ea ho bophara ba karolelano ea mekhahlelo e meraro ke 25. Moralo o motle oa screw o ka qoba lintho tse bonahalang. ho bola le ho petsoha ho bakoang ke ho hohlana ho matla.Ho nka hore bolelele ba sekoti ke L, karolo ea phepelo ke 0.3L, karolo ea compression ke 0.4L, karolo ea metering ke 0.3L, 'me lekhalo pakeng tsa barrel ea screw le screw ke 0.1-0.2mm.Lekhapetla la mahe a linotši hloohong ea mochini le hloka ho ba le masoba a 1.5-5mm, le sebelisa li-filters tse peli tsa 400 / cmsq (hoo e ka bang 50 mesh).Ha o ntša marapo a mahetleng a bonaletsang, hangata enjene e matla ea lipere e ea hlokahala ho thibela enjene ho ema kapa ho cha ka lebaka la ho tlala.Ka kakaretso, li-screw tsa PVC kapa tsa BM lia fumaneha, empa li-screw tse khutšoane tsa karolo ea compression ha lia lokela.
2. Mocheso oa ho bōpa o itšetlehile ka thepa ea bahlahisi ba fapaneng, 'me ha boima bo le holimo, mocheso oa extrusion o phahame.Mocheso oa ho sebetsa o eketseha ka 10-20 ℃ ho tloha karolong ea ho fepa ho ea karolong ea metering.
3. Haeba lebelo la screw le potlakile haholo 'me ho ferekanngoa ho chesoa ka lebaka la khatello ea ho kuta, boemo ba lebelo bo lokela ho laoloa pakeng tsa 12-60rpm,' me boleng bo khethehileng bo itšetlehile ka bophara ba screw.Ha bophara ba bophara bo le boholo, lebelo le fokotseha butle.Boitsebiso bo bong le bo bong bo fapane 'me tlhokomelo e lokela ho lefshoa ho litlhoko tsa tekheniki tsa mofani oa thepa.
4. Pele o sebelisoa, screw e hloka ho hloekisoa hantle, 'me PP kapa HDPE e ka sebelisoa ho hloekisa mocheso o phahameng.Lisebelisoa tsa ho hloekisa li ka boela tsa sebelisoa bakeng sa ho hloekisa.
5. Moqapi oa hlooho ea mochine o lokela ho lokisoa 'me ha hoa lokela ho ba le likhutlo tse shoeleng ho etsa bonnete ba ho phalla ha thepa e boreleli.Mohala oa letsoho oa hlobo o ka atolosoa ka mokhoa o nepahetseng, 'me lehlakoreng le pakeng tsa matsoho a hlobo le etselitsoe ho ba pakeng tsa 8-12 °, e loketseng ho fokotsa khatello ea moriri, ho thibela marotholi a mahlo nakong ea tlhahiso, le ho tsitsisa extrusion. chelete.
6. TPU e na le coefficient e phahameng ea likhohlano 'me e thata ho e bōpa.Bolelele ba tanka ea metsi a pholileng e lokela ho ba telele ho feta lisebelisoa tse ling tsa thermoplastic, 'me TPU e nang le boima bo phahameng e bonolo ho theha.
7. Mohala oa mantlha o tlameha ho omella 'me o se na matheba a oli ho thibela li-bubble ho hlaha ka lebaka la mocheso.Le ho etsa bonnete ba motsoako o motle ka ho fetisisa.
8. TPU ke ea sehlopha sa lisebelisoa tse bonolo tsa hygroscopic, tse monyang mongobo ka potlako ha li behoa moeeng, haholo-holo ha lisebelisoa tse thehiloeng ho ether li le hygroscopic ho feta lisebelisoa tse thehiloeng ho polyester.Ka hona, hoa hlokahala ho netefatsa boemo bo botle ba ho tiisa.Lisebelisoa li na le monyetla oa ho monya mongobo tlas'a maemo a chesang, kahoo lisebelisoa tse setseng li lokela ho koaloa kapele ka mor'a ho paka.Laola mongobo o ka tlase ho 0.02% nakong ea ts'ebetso.
Nako ea poso: Aug-30-2023