Extrusion inzira yekugadzira inosanganisira kupfuudza zvinhu kuburikidza nefa kuti ugadzire chinhu chine yakagadziriswa muchinjiko-chikamu chechikamu. Tekinoroji iyi inoshandiswa mumaindasitiri akati wandei anosanganisira mapurasitiki, simbi, chikafu nemishonga. Michina inoshandiswa mukuita extrusion yakanyatsogadzirirwa kusangana nezvinodiwa zvakasarudzika zvezvinhu zviri kuwedzeredzwa kuti ive nechokwadi chekushanda uye nemazvo. Muchinyorwa chino, tichatarisa mhando dzakasiyana dzemakina anoshandiswa muextrusion process, zvikamu zvawo, uye mashandisiro aanoita.
1. Single Screw Extruder
Iyo imwechete screw extruder ndiyo yakajairika mhando ye extruder. Iyo ine helical screw inotenderera mucylindrical barrel. Iyo midziyo inoiswa muhopi iyo inodziya uye inonyungudutswa painofamba ichitevedza screw. Iyo dhizaini ye screw inobvumira kuti zvinhu zvisanganiswe, zvinyungudutswe uye kupomba kune musoro unofa. Single screw extruder inogoneka uye inogona kushandiswa kune dzakasiyana siyana zvinhu, zvinosanganisira thermoplastics uye mamwe thermosets.
2. Twin Screw Extruder
Twin-screw extruder ine maviri intermeshing screws anotenderera nenzira imwechete kana mhiri. Iyi dhizaini inobvumira zvirinani kusanganisa uye kusanganisa uye yakanakira zvikumbiro zvinoda dhigirii yepamusoro yehomogeneity. Twin-screw extruders inowanzo shandiswa mukugadzirwa kwechikafu, mishonga uye yepamusoro polymer zvinhu. Twin-screw extruders inogona zvakare kugadzirisa huwandu hwakawanda hwezvinhu, zvinosanganisira kupisa-sensitive zvinhu.
3. Plunger Extruder
Plunger extruder, inozivikanwawo sepiston extruders, shandisa plunger inodzoreredza kusundira zvinhu kuburikidza nekufa. Iyi mhando ye extruder inowanzo shandiswa kune zvinhu zvakaoma kugadzirisa ne screw extruder, senge mamwe ma ceramics nesimbi. Plunger extruder inogona kusvika kune yakanyanya kudzvanywa uye saka inokodzera maapplication anoda yakakwira density uye simba extrudates.
4. Sheet extruders
Sheet extruder michina yakasarudzika yekugadzira mashizha akatsetseka. Ivo vanowanzo shandisa musanganiswa weimwe kana mapatya screw extruder uye kufa kuburitsa zvinhu kuita pepa. Iyo yakawedzera pepa inogona kutonhodzwa uye kuchekwa kuita saizi yakakodzera kune akasiyana maapplication, kusanganisira kurongedza, kuvaka uye zvikamu zvemotokari.
5.yakavhuvhuta firimu extruder
Blown film extruder inyanzvi inoshandiswa kugadzira mafirimu epurasitiki. Mukuita uku, purasitiki yakanyungudutswa inoburitswa kuburikidza nedhinhi redenderedzwa robva rawedzerwa kuita mabubbles. Mafuro acho anotonhoresa uye anoderera kuita firimu rakati sandara. Blown film extruders inoshandiswa zvakanyanya muindasitiri yekurongedza kugadzira mabhegi, mapepa ekuputira uye zvimwe zvinochinjika zvekurongedza zvinhu.
Ngatiratidze zvekambani yeduLQ 55 Double-layer co-extrusion firimu rinofuridza muchina Mutengesi (Firimu hupamhi 800MM)
Iyo extruder ine akati wandei akakosha maficha anoshanda pamwechete kuti ave nechokwadi chekubudirira kugadzirisa zvinhu:
Hopper: Hopper ndiko kunoiswa zvinhu zvakasvibirira mumushini. Yakagadzirirwa kudyisa iyo mbishi zvinhu zvinoramba zvichipinda mune extruder.
Screw: Iyo screw ndiyo moyo weextruder. Iyo ine basa rekufambisa, kunyunguduka uye kusanganisa iyo mbishi sezvainopfuura nemudhiramu.
Barrel: Bhareri ndiro goko recylindrical rine screw. Iyo dhiramu ine zvinhu zvekudziya zvekunyungudutsa zvinhu uye inogona kunge iine nzvimbo dzekutonhodza dzekudzora tembiricha.
Kufa: Iyo inofa ndicho chikamu chinoumba iyo yakawedzera zvinhu muchimiro chaunoda. Inofa inogona kugadziridzwa kugadzira akasiyana maumbirwo ezvinhu senge pombi, sheet kana firimu.
Kutonhodza System: Mushure mekunge zvinhu zvasiya kufa, zvinowanzoda kutonhodzwa kuti zvichengetedze chimiro chayo. Kutonhodza masisitimu anogona kusanganisira yekugezesa mvura, kutonhora kwemhepo, kana kutonhora rolls, zvichienderana nekushandisa.
Kucheka Masisitimu: Mune mamwe maapplication, extruded zvinhu zvingangoda kuchekwa kusvika kureba. Kucheka masisitimu anogona kubatanidzwa mune extrusion mutsara kuti otomatiki maitiro aya.
Iyo extrusion process inotanga nekurodha iyo mbishi muhopi. Iyo mbishi inobva yaiswa mudhiramu umo inodziiswa yonyungudutswa painofamba ichitevedza sikuruu. Iyo screw yakagadzirirwa kunyatsosanganisa iyo mbishi zvinhu uye kuipomba mukufa. Kana zvinhu zvasvika pakufa, zvinomanikidzwa kuburikidza nekuvhura kuumba chimiro chinodiwa.
Mushure mokunge extrudate ichisiya kufa, inotonhora uye inosimbisa. Zvichienderana nerudzi rweextruder uye zvinhu zvakashandiswa, mamwe matanho angangoda kuitwa, sekucheka, kupeta kana kuwedzera kugadzirisa.
Extrusion inzira yakakosha yekugadzira iyo inovimba nemichina yakasarudzika kugadzira zvigadzirwa zvakasiyana. Kubva pane imwe-screw uye mapatya-screw extruder kusvika plunger extruders uye yakavhuvhuta firimu michina, imwe neimwe mhando ye extruder ine yakasarudzika chinangwa muindasitiri. Kunzwisisa zvikamu uye basa remichina iyi kwakakosha pakugadzirisa maitiro ekuwedzera uye kuwana mhedzisiro yemhando yepamusoro. Sezvo tekinoroji ichienderera mberi, indasitiri yeextrusion ingangoona humwe hutsva hunozowedzera kushanda zvakanaka uye kuwedzera mikana yekugadzira zvinhu.
Nguva yekutumira: Zvita-02-2024