I-extrusion ethe ngqo yenye yeendlela eziphuhlisayo zeiteknoloji ye-extrusion.Kwisiseko sokuhlalutya uphawu lokujikeleza kwe-twin screw extrusion yenkqubo yokuxuba, amanye amanqaku aphambili malunga nesixhobo, ubuchule, kunye nokungunda kwe-extrusion ngqo kunye ne-twin screw extruder ejikelezayo ikhona.
I-Twin-screw extruder yinkqubo esetyenziswa ngokubanzi eqhubekayo yepolymer.Ingaba inokuthi ikhutshwe ngokuthe ngqo, oko kukuthi, ingaba ingagqitywa ngexesha elinye, ingahlulwa ibe ngamacandelo amabini: ukujikeleza ngokubambisana kunye ne-hetero-directional rotation.I-coaxial twin screw ibe ngumxube kunye ne-extrusion yokubumba.Yiba nekhono elinamandla lokuxuba, lisetyenziselwa ukuguqulwa, ukuzaliswa, i-1 yokuphucula ngokuthe ngqo kunye neemeko zeplastiki ze-extrusion kwaye zixutywe kunye nemveliso yokwenziwa kwe-alloys ephindwe kabini yokuxuba, inkqubo ye-extrusion ininzi ithatha imeko ye-modular ngqo ye-extrusion ikwizinto eziphathekayo. yesakhiwo sokuxuba ngokupheleleyo, ngokwahlukana kwe-syfuels fiasco tube component, ukudibanisa i-screw element ukwanelisa i-extruder inokwakha uxinzelelo olwaneleyo kunye nokuzinza kokuhamba.Ngokwenkqubo ethile yokuxuba yokuhambisa, ukunyibilika, ukuxuba, ukuhla, i-homogenizing kunye nokunye, imeko ye-co-directional twin-screw extruder esetyenziselwa ukuxuba kuqala ihlalutywe.
I-1.I-non-directional twin - i-screw inokuseka uxinzelelo oluphezulu kunye nokuhamba okuzinzileyo
Isantya sokujikeleza kunye nesiphumo sokusasazwa, ikakhulu ezisetyenziselwa iimveliso ezifuna ukubumba ubungakanani obuchanekileyo becandelo kunye ne-extrusion, njenge-cone-direction twin-screw screw ephezulu isantya sesalamane inokuvelisa imilo ephezulu ye-twin-screw extruder yokubumba iprofayili ye-PVC kunye ne-extrusion.Xa kuthelekiswa nesantya sokucheba kunye noxinzelelo olukhulu lokucheba, ukuphakama kwesantya sokujikeleza, kokukhona iziphumo zingcono.I-extruder ye-screw enye inokulungelelanisa kwindawo ebanzi, kodwa iimpawu zayo ezahlukeneyo azilungile njengempembelelo yokuxuba i-dispersive.kwangaxeshanye, isantya esiphezulu ujikelezo buthathaka displacement elungileyo we screw iwele obala kangaka, Screw enye ubukhulu becala isetyenziselwa ukubumba extrusion, jija indima jikelele, ukuze uzinzo extrusion.
Uyilo olukhethekileyo ngokwenkqubo ethile ye-extrusion kunye nemveliso.
2.Umgaqo woyilo lwesijija
Ukusetyenziswa kwemveliso ekhethekileyo yemveliso kufuneka kuxutywe igranulation kunye nokubumba i-extrusion yokuxuba kunye necala elifanayo le-screw element yesikrufu sewele ubukhulu becala ngokutsho "ukusuka kucoceko" amanyathelo amabini okuqala, kwaye ubukhulu becala kwicala elinye lesikrufu samawele. kunye nesikrufu esinye ukugqiba uyilo, lo mgaqo umisela isicatshulwa sobude kufuneka sivuleke, ukuze izikrufu ezimbini zibe.Emva kwe-granulation yomxube we-screw kabini, izinto eziphathekayo zipholile kwiqondo lokushisa, kwaye ukutshintshiselana kwezinto kwenzeka phakathi kwemivalo ye-screw enye, njengoko kuboniswe kumfanekiso we-1 (a) .Xa umjelo we-longitudinal flow flowing uvulekile, ubushushu buphakama kwakhona kude kube yinto enyibilikayo.Emva kokucutshungulwa kabini, kunokwenzeka ukuvula umjelo wokuqukuqela onqamlezayo ukuqonda ukwanda kokusetyenziswa kwezikrufu ezikufutshane zesikrufu esinye, ukonyuka kweendleko zokusetyenzwa, ukongezwa komjikelo wemveliso kunye notshintshiselwano lwemathiriyeli.Ngenxa yoko, ukusabalalisa imbali ye-thermal yokuxuba iyanda kwaye ukusebenza kuyancipha.ngokwendalo kukhokelela kwingxaki: isakhono, kodwa buthathaka nesiphumo esihle sokufuduka.
Ixesha lokuposa: Jul-18-2019