Txhim kho qhov zoo ntawm cov kav dej uas tsim los ntawm PPR yeeb nkab extruders hinges ntawm kev tswj xyuas cov txheej txheem tsis zoo thiab cov khoom siv tu vaj tse. Thaum lub sij hawm tsim khoom, lub extruder qhov kub thiab txias profile yuav tsum nruj me ntsis tswj kom ntseeg tau tias PPR raw khoom ua tiav tag nrho cov yas tsis muaj overheating thiab degradation. Nyob rau tib lub sijhawm, kev sib koom ua ke ntawm cov ntsia hlau ceev, thauj - tawm ceev, thiab tus nqi pub yog qhov tseem ceeb los tswj cov phab ntsa tuab thiab ruaj khov sab nraud. Kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov ua kom txias txias thiab lub tshuab nqus tsev ntawm qhov sizing tuag kom lav qhov tseeb qhov tseeb thiab txo qis hauv kev ntxhov siab.
Tsis tas li ntawd, cov khoom siv raw kom qhuav thiab lim tshuaj ntsuam huv yog qhov tseem ceeb sib npaug. Ua ntej tsim khoom, xyuas kom cov ntaub ntawv qhuav kom huv si kom tsis txhob ya raws -ntxhiab npuas. Tsis tu ncua hloov cov ntxaij lim dej kom tsis txhob muaj impurities cuam tshuam rau cov kav dej 'cov khoom siv kho tshuab thiab cov tsos. Ntev- lub sij hawm txij nkawm tsis tshua muaj hnav ntawm cov ntsia hlau thiab cov thoob, ua ke nrog kev ruaj ntseg ntawm lub tshuab traction thiab txiav tshuab, ua cov ntaub ntawv pov thawj tseem ceeb rau kev tsim cov kav dej zoo - zoo.