Nheyo yekushanda yemuchina wekuumba jekiseni yakafanana neyejekiseni rejekiseni.Inzira yekubaya jekiseni repurasitiki rakanyungudutswa repurasitiki (kureva kuti viscous flow) mugomba rakavharika reforoma nerubatsiro rwekupinza kwescuru (kana plunger), uye kuwana chigadzirwa mushure mekurapa nekuumbwa.
Jekiseni molding inzira yekutenderera, kutenderera kwega kwega kunosanganisira: kuwanda kwekudya - kunyungudika uye plasticization - kudzvanywa jekiseni - kuzadza mold uye kutonhora - kuvhura mold uye kutora zvikamu.Mushure mekutora chikamu chepurasitiki, vhara mold zvakare kune inotevera kutenderera.
Jekiseni molding muchina mashandiro zvinhu: jekiseni kuumba muchina oparesheni zvinhu zvinosanganisira control keyboard kushanda, magetsi control system kushanda uye hydraulic system operation.Sarudza chiitiko chejekiseni, chiito chekudyisa, kudzvanywa kwejekiseni, kumhanya kwejekiseni uye mhando yejection, tarisa tembiricha yechikamu chimwe nechimwe chebhodhoro, uye gadzirisa kudzvanywa kwejekiseni uye kumashure.
Iyo yekuumba maitiro eyakajairwa screw jekiseni yekuumba muchina ndeye: kutanga, wedzera granular kana powdery purasitiki mudhiramu, uye ita kuti ipurasitiki inyunguduke kuburikidza nekutenderera kwescrew uye kupisa kwekunze kwemadziro ebhari, ipapo muchina unovhara mold. uye inofambisa chigaro chejekiseni kumberi kuita kuti muromo uvhare pedyo negedhi re mold, wobva wabaya mafuta ekumanikidza muhumburuku rejekiseni kusundira screw kumberi, Saka, zvinhu zvakanyungudutswa zvinopinzwa mumold yakavharwa ine tembiricha yakaderera pakakwirira. kumanikidzwa uye kukurumidza kukurumidza.Mushure meimwe nguva uye kudzvanywa kwekuchengetedza (inozivikanwawo sekumanikidza kubata) uye kutonhora, mold inogona kuvhurwa uye chigadzirwa chinogona kuburitswa kunze (chinangwa chekumanikidza kubata ndechekudzivirira kudzoreredza kuyerera kwezvinhu zvakanyungudutswa mugomba rekuumbwa, kuwedzera. zvinhu kune mold cavity, uye ive nechokwadi chekuti chigadzirwa chine imwe density uye dimensional kushivirira).Izvo zvinodikanwa zvekuumba jekiseni ndeye plasticization, jekiseni uye kuumba.Plasticization ndiyo gadziriro yekuziva uye kuve nechokwadi chemhando yezvigadzirwa zvakaumbwa.Kuti usangane nezvinodiwa zvekuumba, jekiseni rinofanira kuve nechokwadi chekumanikidza kwakakwana uye nekukurumidza.Panguva imwecheteyo, nekuda kwekudzvanywa kwejekiseni, kudzvanywa kwepamusoro kunogadzirwa mugomba remuvhu (avhareji yekumanikidza mugomba remuvhu kazhinji iri pakati pe20 ~ 45MPa), saka panofanira kunge paine simba rakakwana rekusunga.Zvinogona kuoneka kuti jekiseni mudziyo uye clamping mudziyo ndizvo zvakakosha zvemushini wekuumba jekiseni.
Nguva yekutumira: Zvita-20-2021