zu

Isilinda sokuphilisa okuvulekile ohlangothini lwesifo

I-hopper eseceleni yomklamo okhethekile wama-extruders angamawele, okuqukethe ukuvuleka okukodwa noma ngaphezulu odongeni lomgqomo ovumela izithasiselo eziqinile noma eziketshezi ukuthi zifakwe kwi-polymer encibilikisiwe ngesikhathi senqubo yokukhishwa. .. Lo mklamo uthuthukisa ukuguquguquka kokungezwa kwezinto futhi kunika amandla imisebenzi ehlukahlukene yokucubungula. Indawo yokuvuleka kokuphakela kufanele yenziwe kususelwa kuzakhiwo zezinto nezidingo zenqubo; zivame ukubekwa endaweni yokucindezela isikrufu noma endaweni yokulinganisa. Usayizi wokuvuleka kufanele unqunywe ngokuya ngezinga lokugeleza kwesikhangiso kanye ne-viscosity ye-polymer incibilikiswa, ngenkathi kuqinisekisa ukuvalwa okuqinile ekuvulekeni ukuvimbela ukuvuza nokugcina ukuhambisana okushisayo phakathi kwesikhangiso kanye ne-poly encibilikile ukugwema ama-gradients okushisa.

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Umgqomo wokuvula umshini

Ukumiswa kwe-barrel evulekile ukwakheka komgqomo okhethekile wama-extruders angamawele afaka ukuvulwa endaweni ethile umgqomo, ngokungafani nokwakhiwa kwe-barrel evaliwe. Lokhu kuvulwa kuvame ukusetshenziselwa ukondla okubonakalayo, ukukhipha, noma ukuphambukiswa kwezinto eziseceleni. Ngokuya ngendawo nomsebenzi wokuvula, ukumiswa kwemigoqo evulekile kungahlukaniswa kanjena: - Umgqomo wokuvula uhlangothi: Ukuvulwa kunikezwa ohlangothini lomgqomo, ikakhulukazi ukuveza. Lokhu kususa ngempumelelo izinto eziguquguqukayo, umswakama, namanye amagesi ezintweni ezincibilikisiwe, ngaleyo ndlela kuthuthukise ikhwalithi yomkhiqizo. - Umgqomo wokuvula wokugcina: Ukuvulwa kunikezwa kokukodwa noma kokubili imiphetho yomgqomo, okuvumela ukuphakela izinto noma ukwethulwa kwe-lateral feed. Lokhu kucushwa kuvame ukusetshenziswa ezinhlelweni ezikhethekile zokucubungula. - Ngaphezulu kwemimoya yemvelo noma ama-vacuum vents, Ngokuvamile kuyadingeka ukufaka "ibhlokhi lokuvimba izinto" efanelekile ngaphakathi kokuvulwa ukunciphisa ukugeleza emuva.

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Isici sokhunda esingathathi hlangothi

I-90 ° shear unit iqukethe ama-chear disc amahlanu ahlelwe ekucushweni okumangazayo nge-180 ° angular offset. Ngoba ayinakho kokubili ukudlulisa phambili nokubuyela emuva, kubizwa ngokuthi "iyunithi yokusheya engathathi hlangothi." Ikhombisa ukusabalalisa okuqinile nokusabalalisa amandla okuxuba, kanye nezinga elithile lekhono lokudlulisa emuva, futhi kungakha nengcindezi ngezinga elithile. Isiza ukulawula izinga lokugcwalisa izinto nesikhathi sokuhlala, futhi isetshenziswa kakhulu emfuleni wezingxenye zemvelo zokukhanya kanye ne-vacuum venting.

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Ukudla okunamandla

Imishini yokukhipha ama-twin-screw yimishini eyinhloko yemboni yesimanje yokudla okudla.

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Ibhizinisi elincane neliphakathi nendawo

Izakhi ze-SME ziyizinto zokuhlanganisa i-hybrid ezifaka ama-grooves amaningi e-reflux abuyela emuva angajulile emshinini abe yi-forward-con ejwayelekile. izakhi. Zivame ukusetshenziswa ngokubambisana nezinto zokumelana; ngesikhathi sokuhambisa izinto, ama-grooves angajulile ezindizeni ze-screw adila ukuncibilika kokugeleza, ngaleyo ndlela athuthukisa ukusebenza kokusabalalisa. Umgomo wokukhetha: Lezi zinto ngokuvamile zisetshenziswa endaweni yokuncibilika yama-extruders ama-twin-screw.

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Inweba into enweba

Ukuweba izinto, ezaziwa nangokuthi izinto ezimise okwe-S, zivame ukusetshenziswa ngababili-guqula phambili nokubuyela emuva isikrufu. Zithuthukisa ngempumelelo ikhono lezinto zokushintshanisa izikhundla ezihlobene. Izinto zokwelula ezimise okwe-S zivame ukusetshenziswa endaweni ye-semi-plasticization yamapulasitiki aguquliwe, lapho zikhiqiza isikhumba esimnene futhi ziqinisekise ukuxubana okuningi okufanayo.

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