Kev npaj raw khoom
Cov txheej txheem pib nrog kev pub mis PET polyester chips thiab xaiv xim masterbatch rau hauv siab - sib tov ceev. Cov ntaub ntawv raug muab sib xyaw kom huv si kom ntseeg tau tias cov xim tsis sib xws, tom qab ntawd cov khoom sib tov nkag mus rau theem tswj crystallization los npaj nws kom qhuav thiab ua tiav.
Kub kub thiab qhuav txias
Tom qab ntawd, cov khoom siv crystallized nkag mus rau theem tseem ceeb kom qhuav. Nws raug xa mus rau qhov siab -kub dehumidifying tshuab ziab khaub ncaws uas cov seem seem raug tshem tawm raws li kev tswj xyuas meej. Cov kauj ruam no yog qhov tseem ceeb los tiv thaiv hydrolysis thaum lub sij hawm melting thiab xyuas kom meej viscosity zoo rau cov txheej txheem extrusion tom ntej.
Extrusion Moulding
Cov khoom qhuav yog tom qab ntawd muab tso rau hauv ntxaib - ntsia hlau extruder. Nyob rau hauv qhov chaw tswj qhov kub thiab txias, nws tau yaj zuj zus, compressed, thiab homogenized rau hauv ib qho polymer yaj, uas tom qab ntawd raug yuam los ntawm lub tiaj tus tuag los ua ib daim ntawv txuas ntxiv ntawm molten PET.
Txias
Daim ntawv molten yog tam sim ntawd quenched. Nws raug muab pov rau hauv qhov loj, qhov kub thiab txias -tswj txias yob, qhov twg sai sai solidification tshwm sim. Qhov txias txias no "freezes" cov qauv amorphous ntawm cov polymer, teeb tsa cov yeeb yaj kiab thawj qhov ntev thiab ua kom pom qhov pom tseeb.
Txiav
Tom qab txias, cov yeeb yaj kiab tau raug mob rau hauv cov ntawv loj loj raws li cov lus qhia winding nro thiab dav qhov yuav tsum tau ua. Thaum lub sij hawm cov txheej txheem no, kev tshuaj xyuas hauv online txuas ntxiv saib xyuas qhov tseem ceeb tsis xws li thickness thiab defects.
Ntim
Peb cov txheej txheem ntim cov txheej txheem ua kom txhua yam khoom tuaj txog tsis zoo. Txhua yam khoom muaj kev tiv thaiv zoo nrog lub hnab PE sab hauv thiab txheej txheej kraft ntawv, tom qab ntawd ruaj khov ntawm kev xa tawm -paj pallets npaj. Tom qab ntim khoom, tag nrho cov khoom raug kaw thiab khaws cia hauv peb lub tsev khaws khoom, npaj rau kev xa tawm.
