Kodi Extrusion Molding ndi chiyani?
Extrusion molding, yomwe imadziwikanso kuti extrusion mu pulasitiki processing, imagwiritsa ntchito kuthamanga kwa hydraulic kukakamiza zinthu kudzera mu nkhungu, ndikupanga magawo osalekeza amitundu yosiyanasiyana. Njirayi imaphatikizapo kutenthetsa zinthuzo pamene zimakankhidwa kutsogolo ndi wononga kupyolera mu mbiya, zomwe zimapangitsa kuti pakhale ma profiles osalekeza kapena theka-products. Extrusion molding, ukadaulo wakale pakukonza polima, wasintha zaka 100 zapitazi kukhala njira yabwino kwambiri, yosalekeza, yotsika mtengo komanso yogwiritsidwa ntchito motakata. Tsopano ndiyo njira yomwe imagwiritsidwa ntchito kwambiri popanga polima chifukwa cha kusinthika kwake, mitengo yokwera kwambiri, komanso kusinthasintha.
Basic Njira mu Extrusion Akamaumba
1. Kudyetsa
Zinthu za pulasitiki zimadyetsedwa mu hopper ndikusunthira muzitsulo zomangira pansi pa mphamvu yokoka kapena mothandizidwa ndi chodyetsa, kupita kumutu.
2. Kutumiza
Pamene pulasitiki imalowa mu screw channel, imapita patsogolo ndi kuzungulira kulikonse. Kuthamanga kwenikweni kumadalira ma coefficients amakangana a pulasitiki motsutsana ndi mbiya ndi screw. Kukangana kwakukulu ndi mbiya kapena kukangana kochepa ndi wononga kumawonjezera kuyenda kwa pulasitiki.
3. Kuponderezana
Kuponderezana ndikofunikira kwambiri pakuumba extrusion. Pulasitiki ndi kondakitala wosauka wa kutentha, ndipo mipata iliyonse pakati pa tinthu tating'onoting'ono imatha kulepheretsa kutentha, zomwe zimakhudza kusungunuka. Kuponderezana kumathandizira kutulutsa mpweya kuzinthu, kuteteza zolakwika, ndikuwonetsetsa kachulukidwe kazinthu posunga kupanikizika kwakukulu.
4. Kusungunuka
Ndi kuthamanga kokwera, pulasitiki yolimba yosuntha imalumikizana ndikupukuta pakhoma la mbiya yotentha, ndikupanga filimu yowonda yosungunuka. Filimuyi imachotsedwa ndi wononga pamene ikuyenda, kuwunjikana kutsogolo kwa ndege zowonongeka ndikupanga dziwe losungunuka.
5. Kusakaniza
Pansi pa kupanikizika kwakukulu, zinthu zolimba zimapangidwira mu pulagi wandiweyani. Kusakaniza kumachitika pakati pa zigawo zosungunuka, osati mkati mwa pulagi yolimba.
6. Zotopetsa
Mpweya wabwino ndi wofunikira kuti muchotse mpweya ndi nthunzi zomwe zimapangidwa panthawi ya extrusion. Kutulutsa mpweya koyenera kumaonetsetsa kuti chinthu chomaliza chikuyenda bwino popewa kutha ndi zolakwika.
Ubwino wa Extrusion Molding
Zida Zosavuta Zokhala ndi Ndalama Zochepa: Makina opangira ma extrusion ndi owongoka komanso otsika mtengo.
Kupanga Mosalekeza Ndi Kuchita Bwino Kwambiri: Extrusion imalola kupanga kosalekeza, kupititsa patsogolo magwiridwe antchito.
Kukwera Kwambiri kwa Automation: Makinawa amachepetsa kuchuluka kwa ntchito ndikuwonjezera kulondola.
Kugwiritsa Ntchito Mosavuta ndi Kuwongolera Njira: Njirayi ndiyosavuta kugwiritsa ntchito komanso yotheka.
Zogulitsa Zofanana ndi Zapamwamba: Njira yotulutsira imatulutsa zinthu zofananira komanso zowuma.
Kugwirizana Kwazinthu Zambiri: Ma thermoplastics ambiri ndi zida zina zopangira thermosetting zitha kugwiritsidwa ntchito.
Zosiyanasiyana Mapulogalamu: Extrusion akamaumba ndi oyenera zinthu zosiyanasiyana, kupanga multifunctional ndondomeko.
Mizere Yopangira Ma Compact: Njirayi imafunikira malo ochepa ndikusunga malo opangirako aukhondo.
Mfundo zazikuluzikulu mu Extrusion Molding
Kuyang'ana koyambira: Yang'anani mbiya, hopper, ndi zomangira, kuwonetsetsa kuti zida zonse ndi zotetezeka. Mafuta ngati kuli kofunikira ndikuyeretsani zida.
Yoyambira Liwiro Lotsika: Poyamba gwiritsa ntchito wononga pa liwiro lotsika, kuyang'anira zolakwika zilizonse pamayendedwe agalimoto kapena phokoso.
Mayesero Afupiafupi Opanda Katundu: Kuyesa kocheperako kumayambira mphindi 30 musanamange nkhungu zopanga, ndikuyika mafuta a nkhungu kuti zichotsedwe mosavuta.
Kudyetsa Pang'onopang'ono: Yambani ndi liwiro lotsika wononga ndi kudyetsa zinthu mofanana, kuyang'ana kusinthasintha kulikonse kwa injini yamagetsi.
Kuwunika Kutentha: Yang'anani mosalekeza kutentha, kuonetsetsa kuti palibe kukhudzana mwachindunji ndi ziwalo zosuntha panthawi yogwira ntchito.
Mayankho a Surface Roughness: Wonjezerani kutentha, sinthani liwiro la screw, m'malo mwa zosefera, ndikugwiritsa ntchito zowumitsa zoyenera kuti mupewe kuwonongeka.
Kuteteza Kukula: Chepetsani kugwiritsa ntchito mafuta, konzani zinthu zakuthupi, kapena gwiritsani ntchito zokutira za Teflon kuti muchepetse makulitsidwe.
Kusunga Zotuluka Zokhazikika: Yambitsani kusinthasintha posintha mikhalidwe, pogwiritsa ntchito masirawuni osiyanasiyana, ndikuwongolera kusiyanasiyana kwa kutentha kuti mutsimikizire kutulutsa kosasintha.
Ntchito za Extrusion Molding
Mbiri ya pulasitiki extrusion ndi abwino popanga mapaipi, mbiri ya zitseko, mbali zamagalimoto, ndi zina zambiri.
1. Mipope ndi Tubing
Extrusion imagwiritsidwa ntchito popanga mapaipi apulasitiki ndi machubu kuchokera kuzinthu monga PVC ndi ma thermoplastics ena.
2. Wire Insulation
Ma thermoplastics ambiri ndi ma insulators abwino kwambiri, omwe amawapangitsa kukhala oyenera kutulutsa waya ndi chingwe chotchinjiriza ndi kuthira, kuphatikiza zosankha za fluoropolymer.
3. Pakhomo ndi Mawindo Mbiri
PVC ndi chinthu chodziwika bwino chotulutsa mafelemu a khomo ndi mazenera mosalekeza, omwe ndi abwino kwa ntchito zapakhomo.
4. Akhungu
Thermoplastics imatha kutulutsidwa kuti ipange mawonekedwe akhungu, nthawi zambiri amagwiritsa ntchito polystyrene pamawonekedwe amitengo yabodza.
5. Kuvula Nyengo
Zopangira mphira zovula nyengo nthawi zambiri zimatulutsidwa, zomwe zimapereka njira zosindikizira zogwira ntchito zosiyanasiyana.
6. Windshield Wipers ndi Squeegees
Ma wipers opangira ma windshield amagalimoto ndi ma squeegee blades amapangidwa kuchokera ku zida za rabara zopangidwa ndi extruded monga EPDM.
Kusinthasintha komanso luso la kuumba kwa extrusion kumapangitsa kukhala mwala wapangodya pamakampani opanga pulasitiki, okhala ndi ntchito zambiri komanso zopindulitsa zomwe zimayendetsa kugwiritsidwa ntchito kwake kofala.
Nthawi yotumiza: Jul-16-2024