Mitundu ya Kuwomba kwa Pulasitiki ndi Kumangira jekeseni

Gawo lililonse la pulasitiki limafuna njira yapadera yopangira yomwe ingakhale yosiyana kwambiri ndi chinthu chimodzi kupita ku china.Kumangira jekeseni kumagwiritsidwa ntchito popanga zida zolimba pomwe kuwombera kumagwiritsidwa ntchito popanga zinthu zapulasitiki zokhala ndi malo opanda kanthu, monga mabotolo ndi zotengera.

Jekeseni wotambasula nkhonya kuumba amaphatikiza jekeseni akamaumba ndi kuwomba akamaumba njira.Pulasitiki choyamba kuumbidwa kukhala preform olimba, kupanga ulusi botolo khosi.Preform ikazizira imadyetsedwa mu makina otambasula.Preform imatenthedwanso pogwiritsa ntchito chotenthetsera cha infrared ndikuwomberedwa mu botolo lapulasitiki ndi mpweya wokakamizidwa.

Njira Yopangira jekeseni

Kumangira jekeseni kumagwiritsidwa ntchito popanga zinthu zapulasitiki zokulirapo kuyambira pazikuluzikulu kupita kuzing'ono zing'onozing'ono zomwe zimafuna kulondola kwenikweni.

Pali mitundu yambiri ya njira zopangira zomwe zimagawika pansi pa jekeseni, monga jekeseni wa thermoplastic, kuumba pamwamba, kuyikapo, kuumba kothamanga ndi kutentha kothamanga.

Thermoplastic Injection Molding

Thermoplastic jakisoni akamaumba amagwiritsa thermoplastic polima, kutanthauza kuti amasintha kukhala madzi pamene kutentha.Mosiyana ndi mapulasitiki a thermoset omwe amazizira kukhala olimba kosatha, ma thermoplastics amatha kutumizidwa mumadzimadzi akazizira kukhala olimba.

Overmolding

Overmolding, kapena kuwombera kuwiri, ndi njira yomwe imakwirira nkhungu ya jakisoni pamwamba pa chinthu china, monga chitsulo, kuti chinthucho chikhale cholimba kapena cholimba.Pawiri ngati mphira, yotchedwa thermoplastic elastomer (TPE), ndi chinthu chomwe chimagwiritsidwa ntchito kwambiri.Chitsanzo cha TPE overmold ntchito ndi chogwiririra pa mswachi.Ma Overmolds amathanso kugwiritsidwa ntchito kusindikiza zinthu ndi magawo opangidwa kuchokera ku nkhungu zingapo za jakisoni.

Ikani Kuumba

Monga overmolding, kuika akamaumba ndi jekeseni akamaumba njira amaphatikiza zigawo ziwiri kapena kupitirira mu umodzi yomalizidwa mankhwala.Lowetsani jekeseni jekeseni amaika chigawo chimodzi mu jekeseni nkhungu pabowo ndi zinthu pulasitiki n'kudzazidwa moyikamo.Zowonjezera zimatha kuwonjezera mphamvu ku chinthu ndikuchotsa kufunikira kwa magawo owonjezera kuti muchepetse kulemera kwa mankhwala.

Cold Runner Injection Molding

Zozizira zothamanga zimagwiritsa ntchito sprue kudzaza othamanga omwe amabaya utomoni wa pulasitiki mu nkhungu.Muzitsulo za 2 mbale, makina othamanga ndi magawo amamangiriridwa, ndipo njira yotulutsa ejection ingagwiritsidwe ntchito kulekanitsa awiriwa kuchokera ku nkhungu. Wothamanga wozizira akhoza kuchepetsa zinyalala mwa kubwezeretsanso ndi kubwezeretsanso zinthuzo, koma izi zikhoza kuonjezera nthawi yonse yozungulira. .Machitidwe othamanga ozizira angagwiritsidwe ntchito pamitundu yosiyanasiyana ya ma polima ndipo amatha kulola kusintha kwamtundu kosavuta.

Hot Runner Molds

Zoumba zothamanga zotentha zimagwiritsa ntchito kambirimbiri kutenthetsa utomoni wapulasitiki wosungunuka ndikutumiza zinthuzo kudzera pachipata kuti mudzaze nkhungu.Mitundu iwiri ikuluikulu ya nkhungu zothamanga zotentha zimatenthedwa kunja ndi kutenthedwa mkati.Zopangira zotentha zakunja zimatha kugwiritsidwa ntchito ndi polima zomwe sizimakhudzidwa kwambiri ndi kusiyanasiyana kwamafuta pomwe zowotcha zamkati zowotcha zothamanga zimalola kuwongolera bwino kwakuyenda kwazinthu.

Chifukwa kuumba kothamanga kotentha sikufuna kugwiritsa ntchito othamanga, zinyalala zomwe zitha kuchepetsedwa zimachepetsedwa ndipo kubwezereranso ndikusinthanso ndikusintha kwa pulasitiki ya namwali sikukhudza nthawi yonse yozungulira.

Njira Yopangira Mliri

Pakuwomba nkhonya, pulasitiki yaiwisi yaiwisi imapangidwa kukhala chubu chabowo chokhala ndi mbali imodzi yotseguka yotchedwa parison.Parishiyo amapanikizidwa mu nkhungu yoziziritsa yachitsulo ndipo mpweya woponderezedwa umakanikizidwa m'ndende.pulasitiki yopangidwayo ikazizira ndi kuuma, nkhungu yachitsulo imatsegula ndi kutulutsa mankhwalawo.