Ama-twin-screw extruder ayimishini yamahhashi emkhakheni wokuhlanganisa, futhi ukusebenza kwawo okuphezulu nokwenza ngokwezifiso kuyinzuzo yesikhundla sawo. Ingakwazi ukuhlanganisa izithasiselo ezahlukene kanye nama-fillers ukuze kuzuzwe ukubunjwa kwe-pellet ehlukene kanye nezakhiwo ngokusebenza okuhlukile.
Nakuba izithasiselo ezihlukahlukene nezigcwalisi zingacutshungulwa ukuze zikhishwe, ezinye izindlela zokuthola le mikhiqizo zingase ziholele ezindabeni zokungcola kanye nokugeleza okuphansi noma ukucindezela okuphansi ezindaweni eziningi kuwo wonke umgqomo.
Enqubweni eqhubekayo efana ne-extrusion, ukungcola kungaba nomthelela omubi. Ukuhlanzwa ku-extrusion kuvame ukuba yinselele kakhulu kunezinye izinqubo, futhi ama-twin-screw extruder abhekana nezinselelo ezinkulu ngoba uhlelo luyinkimbinkimbi kune-extruder yesikulufu esisodwa.
Okokuqala, ake sibheke izindlela zokuhlanza ama-twin-screw extruder.
Indlela yokuhlanza i-resin:
Ukusebenzisa i-polyester resin noma i-epoxy resin ekuhlanzeni ngokuvamile isetshenziselwa ukuhlanza imishini emisha noma ngemva kokusetshenziswa kwe-extruder isikhathi esithile, ngenxa yokuthi ezinye izinto zihlala ku-screw noma umphongolo kanye nejeli, isivinini sokukhipha impahla siyehla, kanye nombala. umehluko wezinhlobonhlobo zokushintsha umbala mkhulu. Le ndlela ingasetshenziswa. Namuhla, ngomnotho wempahla othuthuke kakhulu, akukho ukushoda kwezinto zokuhlanza izikulufa ezihlukahlukene (izinto zokuhlanza izikulufa) emakethe, eziningi zazo ezibizayo futhi zinemiphumela ehlukene.
Ukuthi uzosebenzisa izihlanzi zentengiso kuncike kubakhiqizi abahlukene kanye nezimo zokukhiqiza; Izinkampani ezilungisa ipulasitiki zingasebenzisa futhi ama-resin ahlukene njengezinto zokuhlanza izikulufu ngokuya ngemibandela yazo yokukhiqiza, engonga izindleko eziningi zeyunithi.
Isinyathelo sokuqala sokuhlanza isikulufu ukuvala ipulaki yokuphakelayo, okungukuthi, ukuvala imbobo yokuphakelayo ngaphansi kwe-hopper; bese unciphisa isivinini sesikulufu sibe ngu-15-25r/min futhi ugcine lesi sivinini kuze kube yilapho ukugeleza kwencibilika ekugcineni kwefa kuyeka ukugeleza. Ukushisa kwazo zonke izindawo zokushisa zomgqomo kufanele kusethwe ku-200 ° C. Uma umgqomo ufinyelela kulokhu kushisa, qala ukuhlanza ngokushesha.
Ngokuya ngenqubo ye-extrusion (kungase kudingeke ukuthi kukhishwe ukufa ukuze kuncishiswe ingozi yokucindezela ngokweqile ekugcineni kwe-extruder), ukuhlanza kufanele kwenziwe ngumuntu oyedwa: opharetha ubheka isivinini se-screw kanye ne-torque kusuka kuphaneli yokulawula. , futhi ibheka ingcindezi ye-extrusion ukuze kuqinisekiswe ukuthi ingcindezi yesistimu ayiphezulu kakhulu. Phakathi nayo yonke inqubo, isivinini se-screw kufanele sigcinwe ngaphakathi kwe-20r/min. Ekusetshenzisweni kwamakhanda okufa okunomfutho ophansi, ungasusi ikhanda lokufa ukuze uhlanzwe kuqala. Misa futhi ukhiphe ikhanda lokufa ngokushesha lapho i-extrudate iguqulwa ngokuphelele kusukela ekucubunguleni i-resin kuya ku-resin yokuhlanza, bese uqala kabusha isikulufu (isivinini esingaphakathi kwe-10r/min) ukuze uvumele i-resin yokuhlanza esele ukuthi iphume.
Umhlahlandlela we-Disassembly:
1. Ngeza mathupha impahla yokuwasha kusukela embotsheni yokukhipha kuze kube yilapho umbala womugqa wezinto ezikhishiwe ufana nowama-pellets wezinto zokugeza, yeka ukuphakela, khipha okubalulekile, futhi umise ukuzungezisa kwesikulufu se-twin-screw extruder;
2. Vula i-screw extruder die head bese uqala ukuhlanza;
3. Vula isikulufu se-twin-screw extruder bese ukhipha i-orifice plate ukuze ukhiphe insalela yezinto zokugeza emgqonyeni futhi uhlanze i-orifice plate;
4. Yima bese ukhipha isikulufu ukuze ubone ukuthi siyahlanzwa, bese ukhipha mathupha izinto ezisele kusikulufu. Faka kabusha isikulufu; engeza into entsha ukuze ugeze insalela yokuwasha emgqonyeni futhi umise ukuzungezisa isikulufu;
- Faka i-orifice plate kanye ne-die head ye-twin-screw extruder ukuze uqedele umsebenzi wokuhlanza we-twin-screw extruder.
Indlela yokuhlanza okubhakwa ngomlilo:
Ukusebenzisa umlilo noma ukuthosa ukuze kukhishwe ipulasitiki egxilwe kusikulufa kuyindlela evame kakhulu nesebenzayo yamayunithi okucubungula epulasitiki. Sebenzisa i-blowtorch ukuhlanza isikulufu ngokushesha ngemva kokusetshenziswa, ngoba ngalesi sikhathi isikulufu sithwala ukushisa okuvela kokuhlangenwe nakho kokucubungula, ngakho-ke isikulufu Ukusabalalisa ukushisa kusafana. Kodwa ungalokothi usebenzise ilangabi le-acetylene ukuhlanza isikulufu. Izinga lokushisa le-acetylene lingafinyelela ku-3000 ° C. Ukusebenzisa ilangabi le-acetylene ukuhlanza isikulufu ngeke nje kubhubhise izakhiwo zensimbi zesikulufu, kodwa futhi kuthinte kakhulu ukubekezelelana kwemishini kwesikulufu.
Uma ilangabi le-acetylene liphenduka umbala ohlaza okwesibhakabhaka oqhubekayo lapho ubhaka ingxenye ethile yesikulufu, kusho ukuthi isakhiwo sensimbi sale ngxenye yesikulufu sishintshile, okuzoholela ekunciphiseni ukumelana nokugqoka kwale ngxenye, futhi ngisho ukwenzeka kokuhuzuka phakathi kongqimba oluphikisana nokugqoka kanye ne-matrix. Ukucwecwa kwensimbi. Ngaphezu kwalokho, ukushisisa kwendawo ngelangabi le-acetylene nakho kuzodala ukushisa ngokweqile ohlangothini olulodwa lwesikulufu, kubangele ukugoba kwesikulufu. Izikulufu eziningi zenziwe ngensimbi engu-4140.HT futhi zinokubekezelela okuqinile, ngokuvamile ngaphakathi kuka-0.03mm.
Ukuqina kwesikulufu ikakhulukazi kungaphakathi kuka-0.01mm. Uma isikulufu sibhakwa futhi sipholiswa ilangabi le-acetylene, ngokuvamile kuba nzima ukubuyela ekuqondeni kwasekuqaleni. Indlela elungile nesebenzayo: Sebenzisa i-blowtorch ukuhlanza isikulufu ngokushesha ngemva kokusetshenziswa. Ngenxa yokuthi isikulufu sithwala ukushisa kusukela kunqubo yokucubungula ngalesi sikhathi, ukusabalalisa ukushisa kwesikulufu kusafana.
Indlela yokugeza amanzi:
Ukugeza izikulufu: Umshini wokuwasha ngezikulufo ozenzakalela ngokugcwele usebenzisa amandla e-kinetic wokuzungezisa amanzi kanye namandla okusabela okuzungezisa isikulufu ukuze kufinyelelwe ukukhumula okungama-degree angu-360 ngaphandle kwama-engeli afile. Isebenza kahle kakhulu futhi ayilimazi ukwakheka komzimba kwesikulufu. Iqaphela ubuchwepheshe obusha bokuhlanza izikulufu ngendlela evumelana nemvelo, ephumelelayo neyonga amandla. Ifanele ukuchithwa okuphoqelekile nokususwa kwezinto ezihlukahlukene ze-polymer, ngakho-ke ubuchwepheshe bokucubungula obuluhlaza obunomphumela omuhle wokuhlanza.
Isikhathi sokuthumela: Jun-07-2024