Typical Extrusion Materials
Zvinhu zvakasiyana-siyana zvakasiyana-siyana zvinoshandiswa mukuita extrusion. Pano tinogona kutora muenzaniso wePVC extrusion process. Zvimwe zvinhu zve polyethylene, acetal, nylon, acrylic, polypropylene, polystyrene, polycarbonate, uye acrylonitrile. Izvi ndizvo zvekutanga zvinhu zvinoshandiswa mu extrusion process. Zvisinei, nzira yacho haigumiri pazvinhu izvi.
Basic knowledge yeplastiki extrusion process
Iyo yepurasitiki extrusion process ichatanga nekuchinja resin yakasvibirira. Kutanga, iise muhopper ye extruder. Kana iyo resin isina zvekuwedzera kune mamwe maapplication, izvo zvinowedzera zvinowedzerwa muhopper. Mushure mekuiswa, resin inodyiswa kubva pachiteshi chekudya chehopper, uye yobva yapinda mubhodhoro reiyo extruder. Pane screw inotenderera mudhiramu. Izvi zvichadyisa resin, iyo ichafamba mukati memubhodhoro refu.
Munguva iyi, resin inoratidzwa kune yakanyanya kupisa. Kunyanya kupisa kunogona kunyungudutsa zvinhu. Zvichienderana nekupisa kwebhodhoro uye rudzi rwe thermoplastic, tembiricha inogona kusiyana kubva pa400 kusvika ku530 degrees Fahrenheit. Pamusoro pezvo, maextruder mazhinji ane dhiramu rinowedzera kupisa kubva pakurodha kusvika pakudya kusvika pakunyungudika. Iyo yose nzira inoderedza njodzi yekuparara kwepurasitiki.
Plastiki yaizonyunguduka yosvika kumagumo ebhodhoro, kwainotsikirirwa pachubhu yekudya nesefa uye pakupedzisira kufa. Munguva ye extrusion process, masikirini achashandiswa kubvisa zvinosvibisa kubva mupurasitiki yakanyungudutswa. Huwandu hwemasikirini, porosity yezviratidziro uye zvimwe zvimwe zvinhu zvinodzorwa kuti ive nechokwadi chekunyunguduka kwakafanana. Pamusoro pezvo, back pressure inobatsira mukunyungudika yunifomu.
Kana iyo yakanyungudutswa yasvika pachubhu yekudyisa, inozopihwa mugomba reforoma. Pakupedzisira, inotonhora uye inoomesa kuita chigadzirwa chekupedzisira. Ipurasitiki ichangobva kugadzirwa ine yekugezera yemvura yakavharwa kuti ikurumidze kutonhora. Nekudaro, panguva yekuburitsa pepa, iyo yekugezesa yemvura inotsiviwa nemachilled rolls.
Matanho makuru eepurasitiki pombi extrusion maitiro
Sezvambotaurwa, epurasitiki extrusion process inogadzira zvakasiyana siyana zvezvigadzirwa kubva pakuvaka kusvika kune maindasitiri zvikamu, magetsi akavharirwa, mahwindo mafuremu, edging, weatherstripping uye fencing. Nekudaro, maitiro ekugadzira ese aya akasiyana zvigadzirwa achave akafanana ane mashoma misiyano. Kune nzira dzakawanda dzekupindira kwepombi yepurasitiki.
Material kunyungudika
Zvigadzirwa zvinosanganisira magranules, poda kana magranules zvichaiswa muhopi. Mushure meizvi, zvinhu zvinodyiswa muimba inopisa inonzi extruder. Izvo zvinhu zvinonyunguduka sezvazvinopfuura kuburikidza ne extruder. Extruder ine maviri kana imwe swivel bolts.
Kusefa kwezvinhu
Mushure mekunge zvinhu zvanyunguduka, iyo filtration process inotanga. Nyeredzi yakanyungudutswa inoyerera ichibva pahuro ichienda pahuro ichienda kune siruu inotenderera ichimhanya mukati me extruder. Siruuru inotenderedza inoshanda mudhiramu rakachinjika uko zvinhu zvakanyungudutswa zvinosefa kuti zviwane kuenderana.
Kusarudza Dimensions Yezvakanyungudutswa Material
Izvo zvinhu zvepurasitiki zvinhu zvinosiyana zvichienderana neyakagadzirwa zvinhu zvinoshandiswa mukuita. Nekudaro, zvese zvigadzirwa zvinogadziriswa kupisa. Zvinhu izvi zvichave zvichiratidzwa nekupisa kwakanyanya pane chaiwo tembiricha. Tembiricha mazinga anosiyana zvichienderana neyakabikwa. Pakupedzwa kwekuita, purasitiki yakanyungudutswa inosundirwa nekuvhura kunonzi mold. Inoumba zvinhu kuti zvive chigadzirwa chekupedzisira.
Post processing
Mune ino nhanho, iyo yekufa yakachekwa yeprofile ichagadzirirwa kuve neyakafanana uye yakatsetseka kuyerera kubva kune cylindrical profil ye extruder kusvika kune yekupedzisira chimiro chimiro. Zvakakodzera kutaura kuti kuti uwane zvigadzirwa zvakavimbika uye zvemhando yepamusoro, kuenderana kwekuyerera kwepurasitiki kwakakosha.
Mkutonhora kwemhepo
Plastiki ichaburitswa kubva muforoma uye inofambiswa nebhandi kuti itonhore. Bhandi remhando iyi rinonzi bhandi rekutakura. Mushure menhanho iyi, chigadzirwa chekupedzisira chinotonhodzwa nemvura kana mhepo. Zvakakodzera kutaura kuti maitiro acho achafanana nekuumba jekiseni. Asi mutsauko ndewekuti purasitiki yakanyungudutswa inosvinwa neforoma. Asi mukuumba jekiseni, maitiro acho anoitika kuburikidza neforoma.
Nguva yekutumira: Jul-20-2023
