Amapasa wononga extruder chimagwiritsidwa ntchito kusinthidwa thupi ma polima, ndipo angagwiritsidwenso ntchito extrusion mankhwala kuumbidwa. Kadyedwe kake ndi kabwinoko, ndipo kamakhala ndi ntchito zosakaniza bwino, zopumira, ndi zodzitchinjiriza kuposa screw extruder imodzi. Kupyolera mu kuphatikiza kwa mitundu yosiyanasiyana ya zinthu zowononga, mapasa-screw extruder ndi ntchito yotulutsa mpweya yomwe imapangidwira ngati midadada yomangira ingagwiritsidwe ntchito pazinthu zotsatirazi.
- Kupanga masterbatch
Chisakanizo cha particles pulasitiki ndi zowonjezera ndi master batch. Zowonjezera zimaphatikizapo pigment, fillers ndi zowonjezera zowonjezera. The mapasa-screw extruder ndi zida zofunika za mzere wopanga masterbatch, womwe umagwiritsidwa ntchito popanga homogenization, kubalalitsidwa ndi kusakanikirana kwa zowonjezera mu matrix a polima.
- Kusintha kosintha
Perekani ntchito yabwino yosakanikirana pakati pa matrix ndi zowonjezera, zodzaza. Ulusi wagalasi ndiye chinthu chofunikira kwambiri cholimbikitsira, koma ulusi wina ukhozanso kuphatikizidwa ndi zonyamula ma polima. Powonjezera ulusi ndikuphatikiza ndi ma polima, zida zokhala ndi mphamvu zambiri komanso kukana kwambiri zimatha kupezeka, ndipo nthawi yomweyo, kulemera ndi mtengo zimatha kuchepetsedwa.
- Kutopa
Chifukwa cha kulumikizana kwa zitsulo ziwirizi, kumeta ubweya wa zinthu pa malo a meshing mosalekeza kumasintha pamwamba pa zinthuzo ndikuwonjezera mphamvu yotulutsa mpweya, kotero kuti mapasa-screw extruder ali ndi ntchito yabwino kusiyana ndi screw yomwe yatopa. extruder. Kuchita kwa utomoni.
- Direct extrusion
The twin-screw extruder imathanso kuphatikiza kusakaniza ndi kuumba kwa extrusion. Pogwiritsa ntchito mutu wapadera ndi zipangizo zoyenera zotsika pansi, zimatha kupanga zinthu zomalizidwa bwino kwambiri, monga mafilimu, mbale, mapaipi, ndi zina zotero. Kutulutsa kwachindunji kumatha kusiya njira zoziziritsa ndi kusungunula ndikutenthetsanso ndikusungunuka, ndipo zinthuzo zimakhala ndi kupsinjika pang'ono kwamafuta ndi kumeta ubweya. Njira yonseyi imatha kupulumutsa mphamvu ndipo chilinganizocho chikhoza kusinthidwa mosavuta.
