Cov txheej txheem ntau lawm ntawm cov ntawv coated yog txheej txheem sophisticated combining papermaking thiab txheej technologies, aiming los tsim cov ntawv nrog zoo heev zog xws li ya raws, roj kuj, abrasion tsis kam, thiab kua muag kuj. Cov hauv qab no yog cov ncauj lus kom ntxaws tsom xam ntawm cov txheej txheem tsim cov ntawv coated:
Kev npaj raw khoom
Kev tsim cov ntawv coated pib nrog kev ua tib zoo xaiv cov khoom siv raw. Lub hauv paus ntawv yuav tsum muaj lub zog zoo thiab du kom ntseeg tau tias kev ua tiav tom qab. Cov khoom siv txheej feem ntau yog ua los ntawm cov yas yas xws li polyethylene (PE) lossis polypropylene (PP), uas tau xaiv dav vim lawv cov dej noo zoo heev - pov thawj thiab roj - cov khoom pov thawj.
Ntawv Pretreatment
Cov ntawv xaiv tau dhau los ua cov txheej txheem ua ntej, suav nrog kev tshem tawm plua plav thiab tshem tawm qhov quav, txhawm rau tshem tawm cov impurities saum npoo thiab xyuas kom cov ntawv huv thiab tiaj tus, tso lub hauv paus zoo rau txheej txheej tom ntej.
Txheej Khoom Npaj thiab Preheating
Cov khoom siv txheej yog txiav kom tsim nyog qhov ntau thiab tsawg raws li kev xav tau ntau lawm thiab preheated rau qhov kub thiab txias. Cov txheej txheem preheating pab cov txheej txheem zoo dua fuse nrog cov ntawv hauv qhov kub tom ntej - txheej txheem nias, txhim kho lub zog sib txuas.
Txheej txheej txheej
Cov nplaum nplaum yog sib npaug rau ntawm daim ntawv preheated, ua raws li daim ntawv thov ntawm cov khoom siv preheated. Los ntawm kev tswj xyuas qhov kub thiab txias- txheej txheem nias, cov khoom siv txheej thiab daim ntawv sib khi nruj nreem, tsim cov txheej txheej muaj zog.
Txias thiab kho
Tom qab txheej txheej, daim ntawv dhau los ua kom txias thiab kho cov txheej txheem kom muaj kev sib raug zoo ntawm cov txheej txheej thiab daim ntawv. Thaum lub sij hawm tus txheej txheem no, nws yog ib qho tseem ceeb kom tsis txhob shrinkage los yog cracking tshwm sim los ntawm overheating ceev, kom ntseeg tau zoo ib yam ntawm cov ntawv coated.
Txiav thiab ntim
Raws li cov neeg siv khoom xav tau, cov ntawv coated yog txiav rau qhov ntau thiab tsawg thiab ua tib zoo ntim rau kev thauj mus los thiab khaws cia. Kev saib xyuas yuav tsum tau ua kom tiv thaiv qhov chaw ntawm daim ntawv coated thaum lub sij hawm ntim, tsis txhob khawb los yog kis kab mob.
Cov kev ceev faj
Kev xaiv ntawm cov nplaum yog qhov tseem ceeb hauv kev tsim cov ntawv coated, kom ntseeg tau tias muaj kev sib raug zoo nrog cov ntawv thiab cov khoom siv txheej, thiab muaj zog sib txuas siab. Kev tswj xyuas qhov kub ntawm -nias qhov kub thiab lub sij hawm kuj tseem ceeb heev los tiv thaiv cov teeb meem xws li melting ntawm cov khoom txheej los yog kev sib khi tsis muaj zog. Tsis tas li ntawd, kev ua kom txias txaus thiab kev kho kom zoo kuj yog qhov tseem ceeb rau kev ua kom zoo ntawm cov ntawv coated.
