Plastic extrusion ke lejoe la motheo la tlhahiso ea morao-rao, e nolofalletsang tlhahiso ea lihlahisoa tse ngata tsa letsatsi le letsatsi ka ho nepahala le ka katleho. Bohareng ba ts'ebetso ena ho na le extruder ea polasetiki - mochini o fetolang lisebelisoa tse tala tsa polymer ho liprofaele tse felileng, liphaephe, lifilimi, maqephe le tse ling. Empa ka mefuta e mengata ea li-extruder 'marakeng, u khetha e nepahetseng bakeng sa kopo ea hau joang? Ha re hlahlobeng mefuta e atileng haholo, liphapang tsa bona tsa tekheniki, le hore na boqapi bo bopa bokamoso ba theknoloji ea extrusion joang.
Ho Utloisisa Mefuta e Mebeli e Meholo ea Li-extruder tsa Plastiki
Li-extruder tse peli tse sebelisoang ka ho fetisisa tsa polasetiki ke li-single-screw extruder le li-twin-screw extruder. Leha ba arolelana mosebetsi oa mantlha oa ho qhibiliha le ho bopa polasetiki, meaho ea bona ea kahare le bokhoni ba tsona li fapana haholo.
Li-extruder tse nang le screw tse le 'ngoe li na le screw e le 'ngoe e bilikang ka har'a barrel e futhumetseng. Li entsoe ka mokhoa o bonolo, li na le chelete e ngata, 'me li loketse ho sebetsana le thepa e tšoanang le polyethylene (PE), polypropylene (PP), le polystyrene (PS). Ho tšepahala ha bona le ho sebetsa habonolo ha bona ho ba etsa khetho e tsebahalang bakeng sa ho letsa filimi, ho ntša liphaephe le tlhahiso ea maqephe.
Ka lehlakoreng le leng, li-extruder tse peli tsa "twin-screw" li tla ka mefuta e 'meli e meholo: ho pota-pota le ho pota-pota. Mechini ena e sebelisa li-screw tse peli tsa intermeshing ho fana ka motsoako o betere, ho kopanya le ho senya. Li-extruder tse nang le li-twin-screw li ratoa bakeng sa liforomo tse rarahaneng, tse kenyelletsang li-masterbatches tse tlatsitsoeng ka bongata, lipolasetiki tsa boenjiniere, motsoako oa PVC, le lisebelisoa tse senyehang. Moqapi oa bona o lumella taolo e nepahetseng holim'a ho kuta le mocheso, ho etsa hore li tšoanelehe bakeng sa lisebelisoa tse tsoetseng pele.
Ho Bapisa Mofuta oa Extruder le Litlhoko tsa Lintho le Sehlahisoa
Ho khetha extruder e nepahetseng ea polasetiki ho ipapisitse le lisebelisoa tseo u li lokisang le litlhoko tsa sehlahisoa sa ho qetela.
Li-extruder tse nang le sekoaelo se le seng li molemo ka ho fetisisa bakeng sa thermoplastics tse nang le boitšoaro bo tsitsitseng ba ho phalla le litlhoko tse fokolang tsa tlatsetso. Tsena li kenyelletsa lihlahisoa tse kang liphaephe tsa nosetso, lifilimi tsa polasetiki, le li-cable insulation.
Li-extruder tse nang le li-twin-screw li loketse lisebelisoa tse hlokang motsoako o matla kapa tse nang le li-additives tse ngata, tse kang li-flame retardants, li-colour masterbatches, kapa li-wood-plastic composite (WPC). Li boetse li sebelisoa hangata lits'ebetsong tsa bongaka le tsa boemo ba lijo ka lebaka la bokhoni ba tsona bo botle ba ho hasana.
Ho utloisisa thepa ea hau ea thepa - joalo ka ntlha ea ho qhibiliha, viscosity le kutloisiso ea mocheso - ho tla thusa ho tataisa khetho ea hau le ho ntlafatsa liphetho tsa tlhahiso.
Lintlha tsa bohlokoa tsa Tekheniki tse Amang Boleng ba Extrusion
Ts'ebetso ea extruder efe kapa efe ea polasetiki e susumetsoa haholo ke lintlha tse 'maloa tsa tekheniki:
Screw L/D ratio (bolelele-ho-diameter): Sekurufu se selelele se ntlafatsa ho kopanya le ho etsa polasetiki, empa hape se ka eketsa nako ea bolulo le kotsi ea ho senyeha.
Screw Speed (RPM): Lebelo le phahameng la screw le eketsa tlhahiso, empa le tlameha ho leka-lekana ka hloko ho qoba ho chesa haholo kapa ho fokola ho qhibiliha homogeneity.
Taolo ea mocheso: Taolo e nepahetseng ea mocheso libakeng tsohle tsa ho futhumatsa e netefatsa boleng bo tsitsitseng ba ho qhibiliha 'me e thibela mathata a kang a bubble kapa die drool.
Ho ntlafatsa liparamente tsena ho bohlokoa bakeng sa ho fihlela ts'ebetso e phahameng, tšebeliso e tlase ea matla, le ts'ebetso e phahameng ea sehlahisoa. Li-extruder tse lekantsoeng hantle li fokotsa litšila le ho fokotsa nako ea ho theoha - lintlha tse peli tsa bohlokoa bakeng sa tlhahiso ea tlholisano.
Mekhoa ea Bokamoso ho Plastic Extrusion Technology
Ha tlhoko ea lefats'e e ntse e hola bakeng sa tlhahiso e tsitsitseng le e theko e tlaase, theknoloji ea extrusion ea polasetiki e ntse e fetoha ka potlako. Mona ke tse ling tsa litloaelo tsa mantlha tse bopang bokamoso:
Sistimi e bohlale ea extrusion: Ho kopanngoa ha li-sensor, ho lekola data ka nako ea nnete, le taolo ea ts'ebetso e thehiloeng ho AI e nolofalletsa maemo a holimo a boiketsetso le tlhokomelo e boletsoeng esale pele.
Moralo o baballang matla: Li-geometri tse ncha tsa screw, litsamaiso tsa makoloi, le theknoloji ea ho kenya libarele li thusa ho fokotsa tšebeliso ea matla ntle le ho senya ts'ebetso.
Lisebelisoa tse ka sebelisoang hape le tse thehiloeng ho baelo: Ha ts'ebetso e fetoha ntho e tlang pele, li-extruder li ntse li lokisoa ho sebetsana le li-polymers tse nchafalitsoeng le metsoako e ka bolang ka ts'epahalo e phahameng.
Likhatelo-pele tsena ha li ntlafatse liphello tsa tlhahiso feela empa li lumellana le lipakane tsa lefatše ka bophara tsa tikoloho le melao e thata ea indasteri.
Mehopolo ea ho Qetela
Ho khetha e nepahetseng polasetiki extruder ke ho feta qeto ea botekgeniki-ke leano le dipeeletso tsa tlhahiso, boleng, le katleho ea nako e telele. Ka ho utloisisa phapang lipakeng tsa li-extruder tse se nang molekane le tse peli, ho bapisa lisebelisoa ho latela litlhoko tsa hau tse ikhethang, le ho beha leihlo ho mahlale a hlahang, o ka beha ts'ebetso ea hau molemong oa kholo ea nako e tlang.
U batla ho ntlafatsa mohala oa hau oa extrusion kapa ho hlahloba mekhoa ea morao-rao ea ho sebetsa ka polasetiki?JWELLe teng ho thusa ka leseli la litsebi le litharollo tsa lisebelisoa tse lokiselitsoeng. Ikopanye le rona kajeno ho ithuta hore na re ka ts'ehetsa lipheo tsa hau tsa tlhahiso joang.
Nako ea poso: May-13-2025