Nhanganyaya kuPlastiki Extrusion
Plastic extrusion ndeimwe yeanonyanya kushandiswa kugadzira maitiro muindasitiri yepurasitiki, kunyanya ye thermoplastics. Zvakafanana nekuumbwa kwejekiseni, extrusion inoshandiswa kugadzira zvinhu zvine maprofiles anoenderera, senge pombi, tubing, uye profiles yemusuwo. Yemazuva ano thermoplastic extrusion yanga iri chishandiso chakasimba kweanoda kusvika zana, ichigonesa kugadzirwa kwepamusoro-vhoriyamu yezvikamu zvinoenderera. Vatengi vanobatana nemakambani epurasitiki extrusion kugadzira akagadziridzwa epurasitiki extrusions kune zvavanoda chaizvo.
Ichi chinyorwa chinotarisa kune zvakakosha zvepurasitiki extrusion, ichitsanangura kuti maitiro anoshanda sei, izvo thermoplastic zvinhu zvinogona kuburitswa, ndezvipi zvigadzirwa zvinowanzogadzirwa kuburikidza nepurasitiki extrusion, uye kuti extrusion yepurasitiki inofananidzwa sei nealuminium extrusion.
Iyo Plastic Extrusion process
Kuti unzwisise maitiro epurasitiki extrusion, zvakakosha kuti uzive kuti chii chinonzi extruder uye kuti chinoshanda sei. Kazhinji, extruder ine zvinotevera zvinoriumba:
Hopper: Kuchengeta mbishi epurasitiki zvinhu.
Kudyisa Huro: Inodyisa plastiki kubva muhopi kupinda mudhiramu.
Heated Barrel: Iine screw inotyairwa nemotor, iyo inosundidzira zvinhu kune kufa.
Breaker Plate: Yakashongedzerwa ine skrini yekusefa zvinhu uye kuchengetedza kudzvanywa.
Feed Pipe: Inotamisa zvinhu zvakanyungudutswa kubva mudhiramu kuenda kudhishi.
Kufa: Inoumba zvinhu kuti zvive chimiro chaunoda.
Kutonhodza System: Inosimbisa yunifomu kusimba kweiyo yakawedzera chikamu.
Iyo yepurasitiki extrusion process inotanga nekuzadza hopper nezvinhu zvakasimba mbishi, senge pellets kana flakes. Izvo zvinhu zvinodyiswa-giravhiti kuburikidza nehuro yekudyisa kupinda mubhodhoro re extruder. Sezvo zvinhu zvinopinda mudhiramu, zvinopisa kuburikidza nenzvimbo dzinoverengeka dzekudziya. Panguva imwe cheteyo, zvinhu zvacho zvinosundirwa kumagumo ebhari nekakudzokorodza screw, inotyairwa nemota. Iyo screw uye kudzvanywa zvinogadzira imwe kupisa, saka nzvimbo dzekudziya hadzifanirwe kupisa senge tembiricha yekupedzisira yekupisa.
Plastiki yakanyungudutswa inobuda mubhodhoro kuburikidza nechidzitiro chakasimbiswa neplate yekupwanya, iyo inobvisa zvinosvibisa uye inochengetedza yunifomu yekumanikidza mukati medhiramu. Izvo zvinhu zvinobva zvapfuura nepapombi yekudyisa kuita yetsika kufa, iyo ine yekuvhurika yakaita seyaidiwa extruded profil, ichigadzira iyo tsika yepurasitiki extrusion.
Sezvo izvo zvinhu zvinomanikidzwa kuburikidza nekufa, zvinotora pachimiro chekuvhura kufa, kupedzisa iyo extrusion maitiro. Iyo extruded profile inozotonhodzwa mumvura yekugezera kana kuburikidza neyakatevedzana yekutonhodza rolls kuti iome.
Extrusion Plastics
Plastic extrusion inokodzera zvakasiyana-siyana thermoplastic zvinhu, zvinopisa kune zvinonyunguduka zvadzo pasina kukonzera kupisa kwekupisa. Kupisa kweextrusion kunosiyana zvichienderana nepurasitiki chaiyo. Common extrusion mapurasitiki anosanganisira:
Polyethylene (PE): Inowedzera pakati pe400 ° C (yakaderera-density) uye 600 ° C (yakakwirira-density).
Polystyrene (PS): ~450°C
Naironi: 450°C kusvika 520°C
Polypropylene (PP): ~450°C
PVC: Pakati pe350°C ne380°C
Mune zvimwe zviitiko, elastomers kana thermosetting mapurasitiki anogona kubudiswa panzvimbo ye thermoplastics.
Zvishandiso zvePlastiki Extrusion
Makambani ePlastiki extrusion anogona kugadzira akawanda ezvikamu zvine maprofiles anowirirana. Plastic extrusion profiles yakanakira mapaipi, mapikicha emasuo, zvikamu zvemotokari, nezvimwe.
1. Mapaipi uye Tubing
Mapombi epurasitiki uye tubing, anowanzo gadzirwa kubva kuPVC kana mamwe thermoplastics, akajairika epurasitiki extrusion application nekuda kwekureruka kwavo cylindrical profiles. Muenzaniso ndeye extruded drainage pombi.
2. Wire Insulation
Mazhinji thermoplastics anopa yakanakisa magetsi ekudzivirira uye kugadzikana kwemafuta, ichiita kuti ive yakakodzera kune extruding insulation uye sheathing yewaya netambo. Fluoropolymers inoshandiswawo kune chinangwa ichi.
3. Door uye Window Profiles
Plastiki gonhi uye mahwindo emahwindo, anoratidzwa neawo anoenderera profiles uye kureba, akakwana kune extrusion. PVC chinhu chakakurumbira chechishandiso ichi uye zvimwe zvemumba zvinhu zvine chekuita nepurasitiki extrusion profiles.
4. Mapofu
Mapofu, anosanganisira akawanda akafanana slats, anogona kuburitswa kubva ku thermoplastics. Iwo maprofile anowanzo mapfupi, dzimwe nguva aine rumwe rutivi rwakatenderedzwa. Polystyrene inowanzoshandiswa kune faux huni mapofu.
5. Weather Stripping
Makambani ePlastiki extrusion anowanzo gadzira zvigadzirwa zvekubvisa mamiriro ekunze, zvakagadzirirwa kuti zvikwane padhuze nemusuwo nemahwindo. Rubber chinhu chakajairika pakubvisa mamiriro ekunze.
6. Windshield Wipers uye Squeegees
Mawipers emotokari emhepo anowanzo kuburitswa. Iyo yakawedzerwa plastiki inogona kuve yakagadzirwa nerabha zvinhu seEPDM, kana musanganiswa wezvakagadzirwa uye zvakasikwa rabha. Manual squeegee blades anoshanda zvakafanana kune windshield wipers.
Plastic Extrusion vs. Aluminium Extrusion
Kunze kwe thermoplastics, aluminium inogona zvakare kukwidziridzwa kuti igadzire inoenderera zvikamu zveprofile. Zvakanakira zvealuminium extrusion zvinosanganisira kureruka, conductivity, uye kudzokorora. Zvishandiso zvakajairika zvealuminium extrusion zvinosanganisira mabara, machubhu, waya, mapaipi, fenzi, njanji, mafuremu, uye masingi ekupisa.
Kusiyana nepurasitiki extrusion, aruminiyamu extrusion inogona kunge inopisa kana kutonhora: kupisa kunopisa kunoitwa pakati pe350 ° C uye 500 ° C, nepo kutonhora kunopisa kunoitwa pane tembiricha.
Mhedziso
Plastic extrusion, kunyanya muchirevo cheChina Plastic Pipe Extrusion Line, inzira inosiyana-siyana uye inoshanda yekugadzira zvikamu zvinoenderera. Kugona kwayo kubata akasiyana thermoplastics uye huwandu hwayo hwakawanda hwekushandisa kunoita kuti ive yakakosha muindasitiri yekugadzira mapurasitiki.
Nguva yekutumira: Jul-16-2024