Selelekela sa Plastic Extrusion
Plastic extrusion ke e 'ngoe ea mekhoa e sebelisoang ka ho fetisisa indastering ea polasetiki, haholo bakeng sa thermoplastics. Joalo ka ho bopa ente, extrusion e sebelisoa ho theha lintho tse nang le li-profiles tse tsoelang pele, joalo ka liphaephe, li-tubing le profil ea mamati. Extrusion ea sejoale-joale ea thermoplastic e bile sesebelisoa se matla ka lilemo tse ka bang lekholo, se nolofalletsang tlhahiso e phahameng ea likarolo tse tsoelang pele tsa profil. Bareki ba sebelisana 'moho le lik'hamphani tsa polasetiki tsa extrusion ho nts'etsapele li-extrusions tsa polasetiki tse etselitsoeng litlhoko tsa bona tse ikhethileng.
Sengoliloeng sena se shebisisa lintho tsa motheo tsa extrusion ea polasetiki, e hlalosang hore na ts'ebetso e sebetsa joang, hore na lisebelisoa tsa thermoplastic li ka fetisoa joang, ke lihlahisoa life tse atisang ho etsoa ka extrusion ea polasetiki, le hore na extrusion ea polasetiki e bapisoa joang le extrusion ea aluminium.
Mokhoa oa Plastiki Extrusion
Ho utloisisa ts'ebetso ea polasetiki ea extrusion, ho bohlokoa ho tseba hore na extruder ke eng le hore na e sebetsa joang. Ka tloaelo, extruder e na le likarolo tse latelang:
Hopper: E boloka thepa ea polasetiki e tala.
Fepa 'metso: E fepa polasetiki ho tloha ho hopper ho ea ka barrel.
Heated Barrel: E na le screw e khannoang ke enjene, e sutumelletsang thepa ho leba dae.
Breaker Plate: E na le skrine ho sefa lisebelisoa le ho boloka khatello.
Feed Pipe: E fetisetsa thepa e qhibidihileng ho tloha ka moqomong ho ya disong.
E-shoa: E bopa boitsebiso hore bo be boemong bo lakatsehang.
Sistimi ea ho Pholisa: E netefatsa ho tiea ho ts'oanang ha karolo e fetisitsoeng.
Ts'ebetso ea extrusion ea polasetiki e qala ka ho tlatsa hopper ka lisebelisoa tse thata tse tala, joalo ka li-pellets kapa li-flakes. Thepa e tšeloa matla a khoheli ka 'metso oa phepelo ka har'a moqomo oa extruder. Ha thepa e kena ka har'a barrel, e futhumatsoa ka libaka tse 'maloa tsa ho futhumatsa. Ka nako e ts'oanang, thepa e sutumetsoa ho isa pheletsong ea moqomo ka sekoti se khutlisetsang, se khannoang ke enjene. Screw le khatello li hlahisa mocheso o eketsehileng, kahoo libaka tsa ho futhumatsa ha lia lokela ho chesa joalo ka mocheso oa ho qetela oa extrusion.
Polasetiki e entsoeng ka ho qhibilihisoa e tsoa ka har'a barrel ka skrine e matlafalitsoeng ke poleiti ea ho pshatla, e tlosang litšila le ho boloka khatello e tšoanang ka har'a barrel. Thepa ebe e fetela ka har'a phala ea phepelo hore e be sefing sa tloaelo, se nang le lesoba le bopehileng joaloka profil e batloang, e hlahisang extrusion ea polasetiki e tloaelehileng.
Ha thepa e qobelloa ka lefu, e nka sebōpeho sa ho bula lefu, ho phethela ts'ebetso ea extrusion. Joale profil e fetisitsoeng e pholile ka bateng ea metsi kapa ka letoto la li-roll tse pholileng ho tiisa.
Plastiki ea Extrusion
Plastiki extrusion e loketse lisebelisoa tse fapaneng tsa thermoplastic, tse futhumetseng ho fihlela li qhibiliha ntle le ho baka ho senyeha ha mocheso. Mocheso oa extrusion o fapana ho itšetlehile ka polasetiki e khethehileng. Li-plastiki tsa extrusion tse tloaelehileng li kenyelletsa:
Polyethylene (PE): E tsoa pakeng tsa 400 ° C (bonyane bo tlase) le 600 ° C (boima bo phahameng).
Polystyrene (PS): ~450°C
Nylon: 450°C ho isa ho 520°C
Polypropylene (PP): ~450°C
PVC: Pakeng tsa 350°C le 380°C
Maemong a mang, li-elastomer kapa polasetiki ea thermosetting li ka ntšoa sebakeng sa thermoplastics.
Lisebelisoa tsa Plastic Extrusion
Likhamphani tsa extrusion tsa polasetiki li ka etsa likarolo tse ngata tse fapaneng tse nang le liprofaele tse lumellanang. Litlaleho tsa polasetiki tsa extrusion li loketse liphaephe, litlaleho tsa mamati, likarolo tsa likoloi, le tse ling.
1. Liphaephe le Tubing
Liphaephe tsa polasetiki le li-tubing, tse atisang ho etsoa ho tloha PVC kapa thermoplastics tse ling, ke lisebelisoa tse tloaelehileng tsa polasetiki ka lebaka la litlaleho tsa tsona tse bonolo tsa cylindrical. Mohlala ke liphaephe tsa drainage tse extruded.
2. Mohaho oa Mohala
Li-thermoplastics tse ngata li fana ka tšireletso e ntle ea motlakase le botsitso ba mocheso, li li etsa hore li tšoanelehe bakeng sa ho kenya letsoho ka ntle le ho roala lithapo le likhoele. Fluoropolymers le tsona li sebelisetsoa morero ona.
3. Menyako le Lifensetere Profiles
Menyako ea polasetiki le liforeimi tsa lifensetere, tse khetholloang ka li-profiles le bolelele ba tsona tse tsoelang pele, li nepahetse bakeng sa extrusion. PVC ke thepa e tsebahalang bakeng sa sesebelisoa sena le lisebelisoa tse ling tsa ntlo tse amanang le profil ea polasetiki ea extrusion.
4. Lifofu
Lifofu, tse nang le li-slats tse ngata tse tšoanang, li ka ntšoa ho tloha thermoplastics. Hangata li-profile li khuts'oane, ka linako tse ling li na le lehlakore le le leng le chitja. Hangata polystyrene e sebelisoa bakeng sa lifofu tsa mapolanka tsa maiketsetso.
5. Ho hlobola boemo ba leholimo
Hangata lik'hamphani tsa polasetiki li hlahisa lihlahisoa tsa boemo ba leholimo, tse etselitsoeng ho lekana hantle haufi le mamati le lifensetere. Rabara ke ntho e tloaelehileng bakeng sa ho hlobolisa boemo ba leholimo.
6. Windshield Wipers le Squeegees
Li-wiper tsa likoloi tsa koloi hangata li ntšoa. Plastiki e fetisitsoeng e ka ba lisebelisoa tsa rabara tsa maiketsetso tse kang EPDM, kapa motsoako oa rabara ea maiketsetso le ea tlhaho. Li-blades tsa squeegee tse entsoeng ka letsoho li sebetsa ka mokhoa o ts'oanang le li-wiper tsa windshield.
Plastiki Extrusion vs. Aluminium Extrusion
Ntle le thermoplastics, aluminium e ka fetisoa hape ho theha likarolo tse tsoelang pele tsa profil. Melemo ea aluminium extrusion e kenyelletsa bobebe, conductivity, le recyclability. Lisebelisoa tse tloaelehileng bakeng sa extrusion ea aluminium li kenyelletsa mekoallo, li-tubes, lithapo, liphaephe, terata, liporo, liforeimi le licheso tsa mocheso.
Ho fapana le extrusion ea polasetiki, extrusion ea aluminium e ka chesa kapa e bata: extrusion e chesang e etsoa pakeng tsa 350 ° C le 500 ° C, ha mocheso o batang o etsoa mocheso oa kamore.
Qetello
Plastiki extrusion, haholo-holo moelelong oa China Plastic Pipe Extrusion Line, ke mokhoa o fapaneng le o sebetsang oa ho hlahisa likarolo tse tsoelang pele tsa profil. Bokhoni ba eona ba ho sebetsana le mefuta e fapaneng ea thermoplastics le mefuta e mengata ea ts'ebeliso ea eona e etsa hore e be ea bohlokoa indastering ea tlhahiso ea polasetiki.
Nako ea poso: Jul-16-2024