Ndeupi mutsauko uripo pakati pePET preform jekiseni rekuumba muchina uye yakajairwa jekiseni rekuumba muchina?

Nyanzvi PET preform jekiseni rekugadzira muchina inosiyana zvakanyanya kubva kune general-chinangwa chakajairwa jekiseni molding muchina, sezvo yakasarudzika mainjiniya kuti ienderane kune yakakosha yemuviri uye makemikari zvimiro zvePET resin, iyo michina yakajairwa haigone kugamuchira zvizere. PET zvinhu zvinoratidza kunyura kwakanyanya, kunzwa kupisa kwekushisa, low melt viscosity, uye zvakasimba zvinodiwa kuti plasticization kufanana uye kuumba nokukurumidza, zvese izvo zvinoda magadzirirwo emuchina chaiwo. Chokutanga uye chakakosha, iyo plasticizing system yakasiyana zvachose. PET preform michina ine yakatsaurirwa yakaderera-shear screw uye dhiramu ine kureba-kusvika-dhayamita reshiyo 24:1 ku 26:1, ine shallow screw grooves uye isina akafa-angle dhizaini. Ichi chimiro chinodzivirira kugera kwakanyanyisa simba kunokonzeresa PET mamorekuru cheni kutyoka, zvinobudirira kudzivirira kunyunguduka yellowing, carbonization, uye kuderedzwa kwekujeka panguva yekupisa kwepamusoro. Mukupesana ne, akajairwa jekiseni muchina screws akagadzirirwa mapurasitiki epasi rose sePP uye ABS, kugadzira kupisa kwakanyanya kweshear kunoshatisa zviri nyore zvinhu zvePET uye kuburitsa akaremara preforms ane yero mitsetse uye mhute.. saka iyo yese jekiseni molding process Yekugadzirwa kwezvinhu mbishi, iyo tembiricha yekudzora system ye PET preform michina inotsigira akawanda-nhanho chaiyo PID inogara ichidzora tembiricha, kuvhara dhiramu, nozzle, uye mold adapter ine chikanganiso chetembiricha inodzorwa mukati me ± 1°C. Sezvo PET yekugadzirisa tembiricha inotangira pa260°C kusvika 285°C, kunyangwe kupisa kudiki kwenzvimbo kunokonzeresa kuwanda kweacetaldehyde uye kuchembera kwezvinhu, dambudziko iro michina yakajairika ine rough control control haigone kudzivirira. Uyezve, PET preform kugadzirwa inoda yakakwira-kumhanya yakatetepa-madziro kuzadza uye yakakwirira-yakaomesesa clamping kuti ive nechokwadi chekukiya yunifomu yekuvhara uye kudzivirira kupenya pane akawanda-cavity preforms.. Nyanzvi preform michina inotora yakasimbiswa yakakwirira-yakaomarara matemplate uye yakakwirira-mhinduro inokurumidza jekiseni masisitimu., kuwana yakagadzikana yakakwirira-kumhanya kuzadza mukati 0.1 seconds, nepo michina yakajairwa ine inononoka jekiseni mhinduro uye isina kukwana clamping rigidity, zvichiita kuti kusaenzana preform rusvingo ukobvu uye goho shoma. Kuwedzera, yakatsaurirwa PET michina yakagadziridzwa kwenguva pfupi yekugara zvinhu, ine streamlined kuyerera nzira uye anti-stagnation nozzle zvimiro kuderedza kunyunguduka kuchengetwa uye kushatisa.. Ivo zvakare vanochengeta nzvimbo dzehunyanzvi dzekutsigira midziyo yakadai seyekubvisa humidifying dryer uye maindasitiri anotonhora, kugadzira yakakwana PET molding yekugadzira system. Michina yejekiseni yakajairwa inoshaya izvi zvakanangwa optimizations, zvichikonzera kuderera kwekugadzira kushanda zvakanaka, mazinga akaremara zvakanyanya, uye kusakwanisa kusangana nechikafu-giredhi preform yekugadzira zviyero. Muchidimbu, akajairwa jekiseni muchina anogona chete kupedzisa nyore kuumba epurasitiki, nepo nyanzvi dzePET preform michina inotarisa pakujeka kwepamusoro, yakaderera acetaldehyde, goho rakakwirira, uye high-speed mass production, kunyatsoenderana neyakaomarara maitiro zvinodiwa zve PET preform kugadzira.