Izici ezibalulekile zeNanhai YaUmshini wePlastiki Extruder "uhambisa ngokuqhubekayo, ukwenza ipulasitiki esebenza kahle kakhulu, nokubumba okuzinzile."
I-extruder iqukethe amasistimu amahlanu abalulekile ukusuka ekuphakeleni kuye ekubunjweni, ngalinye linomsebenzi ochazwe ngokucacile futhi lisebenza ngokubambisana:
1. Uhlelo Lokudla
Izingxenye ezibalulekile: i-hopper, i-feeder (ihlukaniswe ngokuphakela amandla adonsela phansi kanye nokuphakela ngempoqo).
Umsebenzi: Idlulisela ngokuqinile ama-granules/impusha yepulasitiki eqinile esigabeni sokuphakela ngesikulufu, igwema "ukuvala ibhuloho" (ukuvinjwa kokubalulekile ku-hopper). Iziphakeli eziphoqiwe (ezifana nezikulufu ezimbili) zifanele i-viscosity ephezulu noma izinto ezihlanganiswe kalula, ezinokunemba kokuphakelayo okungu-±1%.
2. Plasticizing System
Izingxenye ezibalulekile: isikulufu, umgqomo, amadivaysi okushisa kanye nokupholisa.
Umsebenzi: Indawo ewumgogodla "yokuguqulwa kwe-solid-liquid" yamapulasitiki. I-screw rotation ikhiqiza amandla okugunda, okuthi, kuhlanganiswe nokushisa okuhlukene komgqomo (ngokuvamile amasegimenti angu-3-5), kancane kancane kuthambe futhi kuncibilikise ipulasitiki eqinile; idivayisi yokupholisa (okufana nokupholisa amanzi noma ukupholisa umoya) ilawula izinga lokushisa lomgqomo ukuvimbela ukushisa ngokweqile kanye nokonakala kwezinto.
Amapharamitha angukhiye: I-screw length-to-diameter ratio (L/D) ivamise ukuba ngu-20:1-30:1. Izinga lokushisa lomgqomo lilungiswa ngokuya ngezinto zepulasitiki (isb., PE 180-220 ℃, PVC 160-190 ℃).
3. Uhlelo lokudlulisa
Izingxenye ezibalulekile: Motor, gearbox, coupling.
Umsebenzi: Inikeza amandla azinzile kusikulufu futhi ilawula isivinini sesikulufu (imvamisa engu-10-100 r/min). I-motor ivame ukusebenzisa i-variable frequency motor noma i-servo motor, evumela ukulungiswa kwesivinini esinembile; i-gearbox yehlisa isivinini se-motor futhi inyusa i-torque ukuze ihlangabezane nezidingo zokulayisha okuphezulu kwesikulufu.
4. I-Die Head kanye ne-Mold System
Izingxenye eziyinhloko: I-Die head (ixhuma umgqomo nesikhunta), isikhunta (inquma ukuma kwesigaba esiphambene somkhiqizo).
Umsebenzi: Yethula ipulasitiki encibilikisiwe endaweni yesikhunta futhi iyikhiphe ibe yizimo ezithile (isb., amapayipi, amashidi, amaphrofayili). Isikhunta sidinga umshini ngokunembile ngokuya ngobukhulu bomkhiqizo. Izinhlobo ezijwayelekile zifaka isikhunta samapayipi, isikhunta somlomo oyisicaba (amashidi/amafilimu), kanye nesikhunta esimise okungavamile (amaphrofayili eminyango namafasitela).
5. Ukubumba, Ukupholisa, kanye Nesistimu Yokudonsa
Izingxenye Eziwumongo: Umkhono wokubumba (isb., umkhono wesayizi wevacuum, i-calendering roller), ithangi lokupholisa (elipholiswe ngamanzi/elipholiswe umoya), umshini wokudonsa.
Umsebenzi: Ipholisa ngokushesha futhi ilolonge iphrofayela ekhishiwe yezinga lokushisa eliphezulu, kuyilapho ngesikhathi esifanayo idonsa ngesivinini esifanayo ngomshini wokudonsa ukuze kuqinisekiswe ukuzinza kobukhulu bomkhiqizo (isb., ukuchezuka kodonga lwamapayipi ≤ ±0.1mm). Isivinini sokudonsa kufanele sihambisane nesivinini sokukhipha ukuvikela ukunwebeka noma ukushwabana komkhiqizo.
Ngokuya ngezidingo zokukhiqiza, singahlinzekaama-extruder-screw single, ama-ama-twin-screw extruders, kanye nemigqa yokukhiqiza ye-extrusion.
