Nyob rau hauv tus txheej txheem ntawm tsim PET preforms, ziab PET raw khoom yog ib qho tseem ceeb txuas.Hauv kev tsim cov PET preforms, PET raw cov ntaub ntawv yog rhuab thiab pressurized, extruded los ntawm ib tug extruder rau hauv yas blanks, thiab ces ntxiv ua rau preforms.Txawm li cas los xij, yog tias cov khoom siv PET muaj cov dej ntau dhau, nws yuav decompose thaum lub sij hawm cua sov thiab cov txheej txheem pressurizing, uas ua rau lub cev tsis muaj zog, los yog ua tsis tiav, cuam tshuam rau qhov zoo ntawm lub preform, thiab tej zaum yuav ua rau muaj kev cuam tshuam. tag nrho cov kab ntau lawm ua tsis tiav.Yog li ntawd, ziab PET raw khoom yog qhov tsim nyog heev.Raws li ib txwm muaj, nws yuav siv sij hawm ntev los ntawm kev tsim thiab ua cov khoom siv PET rau kev xa cov khoom kawg, thiab cov ntaub ntawv PET tej zaum yuav raug rau cov av noo ib puag ncig, yog li nqus dej ntau.Qhov no cuam tshuam tsis tsuas yog cov khoom ntawm PET raw khoom, tab sis kuj yog qhov zoo thiab ruaj khov ntawm cov khoom kawg.Vim li no, nws yog ib qho tseem ceeb heev kom qhuav cov khoom siv PET.Cov txheej txheem ziab ntawm PET raw khoom kuj tseem ceeb heev.Feem ntau hais lus, ziab PET raw cov ntaub ntawv yuav tsum tau siv dehumidification tshuab ziab khaub ncaws.Lub tshuab ziab khaub ncaws no tuaj yeem nthuav tawm cov khoom siv raw ntawm PET mus rau qhov chaw qis, thiab maj mam evaporate cov dej noo hauv PET raw khoom los ntawm cov cua kub loj, kom cov khoom siv raw tuaj yeem ncav cuag qhov xav tau kom qhuav.Nyob rau hauv tus txheej txheem ntawm ziab PET raw cov ntaub ntawv, nws yuav tsum tau muab sau tseg tias tsim nyog kub thiab lub sij hawm yuav tsum tau siv los xyuas kom meej lub qhuav nyhuv, thiab nyob rau tib lub sij hawm, nws yuav tsum tsis txhob over-dried, txwv tsis pub nws tej zaum yuav muaj kev cuam tshuam tsis zoo ntawm cov khoom. Lub cev muaj zog ntawm PET raw khoom.Nyob rau hauv luv luv, ziab PET raw khoom yog ib txoj hauj lwm tseem ceeb heev.Qhov zoo thiab kev ua tau zoo ntawm PET preforms tsuas yog tuaj yeem lav yog tias qhov ziab kom zoo txaus.Nyob rau tib lub sijhawm, cov txheej txheem ziab PET raw cov ntaub ntawv tseem yuav tsum ua raws li txoj hauv kev kom raug, tsis yog tsuas yog ua tib zoo saib xyuas qhov kub thiab txias, tab sis kuj yuav tsum tsis txhob ziab dhau los ua kom lub cev muaj zog ntawm PET raw khoom.Qhuav PET raw cov ntaub ntawv tuaj yeem txhim kho kev tsim khoom thiab cov khoom zoo, thiab txo cov nqi tsim khoom, yog li nws tseem yog ib feem tseem ceeb ntawm cov txheej txheem preform ntau lawm.
Post lub sij hawm: Lub Xya hli ntuj-12-2023