Pretreatment yog txheej txheem ntawm kev npaj cov khoom lossis cov khoom ua ntej nws mus rau kev kho mob ntxiv. Nws yog cov kauj ruam tseem ceeb hauv ntau qhov kev lag luam xws li kev tsim khoom, tshuaj, tshuaj, thiab lwm yam. Lub hom phiaj ntawm pretreatment yog los txhim kho qhov zoo los yog tsim nyog ntawm cov khoom rau nws npaj siv. Kab lus no yuav tham txog ntau yam yam ntxwv thiab kev siv ntawm cov txheej txheem pretreatment.
Cov yam ntxwv ntawm Pretreatment
Muaj ob peb yam ntxwv ntawm pretreatment uas ua rau nws yog ib qho tseem ceeb txheej txheem nyob rau hauv ntau industries. Ua ntej, pretreatment tuaj yeem pab tshem tawm impurities ntawm cov khoom. Piv txwv li, hauv kev lag luam khoom noj khoom haus, cov khoom siv raw yuav muaj cov kab mob, tshuaj tua kab, lossis lwm yam kab mob uas yuav tsum tau muab tshem tawm ua ntej ua haujlwm. Pretreatment tuaj yeem pab nrog qhov no los ntawm kev ntxuav, cua sov, lossis siv cov tshuaj kom tshem tawm cov kab mob thiab txhim kho cov khoom zoo.
Qhov thib ob, pretreatment tuaj yeem txhim kho cov khoom ntawm cov khoom. Nyob rau hauv cov ntaub ntawv ntawm hlau, pretreatment yuav pab tshem tawm xeb los yog lwm yam pliaj coatings, uas yuav txhim khu kev sib raug zoo ntawm cov hlau nrog rau lwm yam ntaub ntawv tom qab nyob rau hauv lub manufacturing txheej txheem. Rau lwm cov ntaub ntawv, xws li plastics, pretreatment tuaj yeem pab ua kom lub ntsej muag nruj, tso cai rau kev ua kom zoo dua qub thaum siv coatings lossis pleev xim.
Thaum kawg, pretreatment muab lub hauv paus rau kev kho mob ntxiv lossis ua tiav. Piv txwv li, nyob rau hauv kev lag luam luam ntawv, pretreatment ntawm daim ntawv yuav pab txhim kho cov number case absorbency thiab brightness ntawm daim ntawv, uas yog ib qho tseem ceeb rau high-zoo printing.
Kev siv Pretreatment
Pretreatment yog siv nyob rau hauv ntau yam kev lag luam los npaj cov ntaub ntawv raw rau kev ua haujlwm ntxiv. Qee qhov kev siv tseem ceeb tshaj plaws ntawm pretreatment muaj xws li:
1. Kev npaj nto rau tha xim lossis txheej - Pretreatment yog siv los npaj cov hlau nto rau tha xim lossis txheej los ntawm kev tshem tawm xeb, roj, lossis lwm yam tsis xav tau.
2. Decontamination ntawm cov ntaub ntawv - Pretreatment yog siv los tshem tawm cov teeb meem ntawm cov zaub mov, tshuaj, los yog lwm yam khoom.
3. Kev hloov kho deg - Kev kho kom zoo tuaj yeem siv los hloov kho qhov chaw ntawm cov khoom, xws li yas lossis hlau, txhawm rau txhim kho adhesion lossis kev sib txuas.
4. Kev ntxuav thiab huv - Pretreatment yog siv los ntxuav thiab ntxuav cov cuab yeej lossis cov chaw hauv cov khoom noj, tshuaj, thiab kev kho mob.
5. Kev kho dej - Pretreatment yog siv hauv cov chaw kho dej kom tshem tawm cov kab mob, xws li tshuaj lom neeg lossis kab mob, ua ntej dej kho thiab tso tawm.
Xaus
Pretreatment yog ib kauj ruam tseem ceeb hauv ntau qhov kev lag luam uas pab npaj cov khoom siv raw rau kev ua haujlwm ntxiv. Cov txheej txheem cuam tshuam nrog tshem tawm impurities, txhim kho cov khoom ntawm cov khoom, thiab muab lub hauv paus rau kev kho mob ntxiv lossis ua tiav. Kev siv ntau yam ntawm pretreatment muaj xws li kev npaj decontamination, decontamination, deformation, tu thiab huv si, thiab kev kho dej. Nrog rau kev txhim kho txuas ntxiv ntawm cov ntaub ntawv tshiab thiab thev naus laus zis, qhov tseem ceeb ntawm pretreatment hauv ntau qhov kev lag luam tsuas yog txuas ntxiv mus ntxiv.