Plastic extrusion, eo hape e tsejoang e le polasetiki ea extrusion, ke ts'ebetso e tsoelang pele ea tlhahiso ea boleng bo phahameng eo ho eona thepa ea thermoplastic - ka mofuta oa phofo, li-pellets kapa granulate - e qhibilihisoa ka homogeneously ebe e qobelloa ho tsoa sebopehong e shoa ka khatello. Ho screw extrusion, khatello e tsoa ho "screw rotation" khahlanong le lebota la barrel. Ha polasetiki e qhibilihisoa e feta ka har'a sekoti, e fumana sebopeho sa lesoba la die 'me e siea extruder. Sehlahisoa se fetisitsoeng se bitsoa extrudate.
Extruder e tloaelehileng e na le libaka tse 'ne:
Fepa Zone
Sebakeng sena, botebo ba sefofane ha bo fetohe. Sebaka se pakeng tsa bophara bo boholo bo ka holimo ho sefofane le bophara bo bonyenyane ba screw botlaaseng ba sefofane ke botebo ba sefofane.
Transition Zone kapa Compression Zone
Botebo ba sefofane bo qala ho fokotseha sebakeng sena. Ha e le hantle, thepa ea thermoplastic e hatelloa 'me e qala ho etsoa polasetiki.
Kopanya Zone
Sebakeng sena, botebo ba sefofane bo boetse bo sa fetohe. Ho etsa bonnete ba hore thepa e qhibilihile ka ho feletseng 'me e tsoakane ka homogeneously, ho ka ba le ntho e khethehileng ea ho kopanya.
Sebaka sa Metering
Sebaka sena se na le botebo bo fokolang ba sefofane ho feta sebakeng se tsoakaneng empa se lula se le teng. Hape, khatello e sutumelletsa ho qhibiliha ka har'a lefu la ho bopa sebakeng sena.
Ntlha e 'ngoe, ho qhibiliha ha motsoako oa polymer ho bakoa ke lintlha tse tharo tse kholo:
Phetisetso ea Mocheso
Ho fetisa mocheso ke matla a fetisitsoeng ho tloha ho extruder motor ho ea ho extruder shaft. Hape, ho qhibiliha ha polymer ho angoa ke profil ea screw le nako ea ho lula.
Khohlano
Sena se tlisoa ke khohlano ea ka hare ea phofo, profil ea screw, lebelo la sekoti, le sekhahla sa phepelo.
Extruder Barrel
Litaolo tse tharo kapa ho feta tse ikemetseng tsa mocheso li sebelisoa ho boloka mocheso oa libarele.
Nako ea poso: Oct-08-2022
