Kuyerekeza kwa single-screw ndi twin-screw extruders

(1) Chiyambi chasingle screw extruder

Ma extruder a single-screw, monga momwe dzinalo likusonyezera, amakhala ndi screw imodzi mkati mwa mbiya ya extruder.Nthawi zambiri, utali wothandiza umagawidwa m'magawo atatu, ndipo kutalika kwake kwa magawo atatuwo kumatsimikiziridwa molingana ndi m'mimba mwake, phula, ndi kuya kwa wononga, ndipo nthawi zambiri amagawidwa molingana ndi gawo limodzi mwa magawo atatu.

Gawo loyamba: kuyambira ulusi womaliza wa doko la chakudya, limatchedwa gawo lotumizira.Zomwe zili pano siziyenera kupangidwa ndi pulasitiki, koma ziyenera kutenthedwa ndi kufinyidwa.M'mbuyomu, chiphunzitso chakale cha extrusion chimakhulupirira kuti zinthu zomwe zili pano ndi thupi lotayirira.Pambuyo pake, zidatsimikiziridwa kuti zomwe zili pano ndi pulagi yolimba, zomwe zikutanthauza kuti zinthu zomwe zili pano zafinyidwa.Kumbuyo kumakhala kolimba ngati pulagi, malinga ngati amaliza ntchito yobweretsera, ndi ntchito yake.

(2) Kugwiritsa ntchito single screw extruder

The single-screw extruder imagwiritsidwa ntchito makamaka pakutulutsa mapaipi, mapepala, mbale, ndi zida zojambulidwa, komanso kupangira zida zina zosinthidwa.

(1) Chiyambi chamapasa-screw extruder

The twin-screw extruder imaphatikizapo machitidwe otsatirawa.Screw system makamaka imamaliza pulasitiki ndi kutumizira zinthuzo, zomwe zimakhudza kwambiri magwiridwe antchito ndi mtundu wa chinthu chomalizidwa.

① Dongosolo lodyetsera: kuphatikiza hopper, kugwedeza mota, ndi kudyetsa mota.Itha kuletsa kudzikundikira kwa zinthu ndikupangitsa kuti ilowe bwino padoko lazakudya.

② Makina otenthetsera akunja: Gwiritsani ntchito kwambiri ndodo yowotchera ndi silinda kuti mutenthetse bwino zinthuzo ndikulimbikitsa pulasitiki.

③ Dongosolo lozizira: Njira yosinthira kutentha yomwe imapangidwa ndi mafuta otengera kutentha kapena madzi imagwiritsidwa ntchito kuchepetsa kutentha kwa fuselage, kuti azitha kuwongolera bwino kutentha kwa silinda.

④ Makina osinthira mawonekedwe a Hydraulic Screen: Gwiritsani ntchito zowonera zosinthika kuti muchepetse zinyalala, kuwongolera kuchuluka kwa pulasitiki, ndikuwonetsetsa kuti zinthuzo zikufanana komanso zokhazikika.

Chitsanzo cha ntchito ya twin-screw extruder: galasi ulusi wolimbitsa, malawi retardant granulation (monga PA6, PA66, PET, PBT, PP, PC kulimbikitsa lawi retardant, etc.), granulation mkulu filler (monga PE, PP wodzazidwa ndi 75% CaCO3), kutentha tcheru granulation (monga PVC, XLPE chingwe chuma), wandiweyani masterbatch mtundu (monga kudzaza 50% tona), anti-static masterbatch, aloyi, utoto, otsika kudzaza kuphatikiza granulation, chingwe chuma granulation (Monga m'chimake chuma, insulating zinthu), XLPE chitoliro zinthu granulation (monga masterbatch kwa madzi otentha crosslinking), thermosetting pulasitiki kusakaniza ndi extrusion (monga phenolic utomoni, epoxy utomoni, ❖ kuyanika ufa), otentha Sungunulani zomatira, PU zotakasika extrusion granulation (monga EVA otentha Sungunula zomatira, polyurethane), K utomoni, SBS devolatilization granulation, etc.

Zitsanzo zogwiritsira ntchito single screw extruder:oyenera mapaipi a PP-R, mapaipi a gasi a PE, mapaipi olumikizana ndi PEX, mapaipi a aluminiyamu-pulasitiki, mapaipi a ABS, mapaipi a PVC, mapaipi apakatikati a HDPE ndi mapaipi ophatikizika osiyanasiyana;oyenera PVC, PET, PS, PP, PC ndi mbiri ndi mbale, ndi mapulasitiki ena monga filaments, ndodo, etc.;kusintha liwiro la extruder ndi kusintha kapangidwe ka wononga extrusion ingagwiritsidwe ntchito kupanga PVC ndi polyolefins.Ndi mbiri zina zapulasitiki.