Ntsuas: Siv tshuab kom qhuav siv los luam ntawv
Peb yog ib lub lag luam loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv nyuaj, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Txoj kev ziab no suav tag nrho cov txheej txheem tom qab caws pauv hloov. Hauv cov txheej txheem, number case curing yog qhov tseem ceeb tshaj rau kev ua luam tawm tom qab thiab cov khoom siv uas luam tawm tau siv nyob rau hauv txhua txhua hnub.
Nyob ntawm seb tus lej ntawm tus cwj pwm, txoj kev ziab yuav muab faib ua lub cev ziab khaub ncaws, tshuaj ziab khaub ncaws, thiab ua ke ntawm ob txoj hau kev. Cov tshuaj pleev txawv thiab cov kua roj vuas txawv yuav tsum muaj cov tshuab sib txawv sib txawv los yog ob peb qhov tshuab ziab kom pom zoo kom qhuav. Yog tias lub tshuab hluav taws xob thiab lub tshuab ultraviolet qhuav nruab ib lub tshuab luam ntawv, nws yog ib qho tseem ceeb rau txhua yam xav tau luam tawm.
Xav tias nws txoj kev ua kom ziab, cov lus sau ntawm cov ntawv luam tawm yuav tsum ua kom tau raws li ob qhov kev txwv nram no: Ua ntej, tus cwj mem tsis tuaj yeem qhuav rau hauv cov quav cuav thaum luam ntawv lossis kaw kev kaw ntuag; ua ntej, tom qab luam ntawv, nyob rau hauv substrate Tus cwj mem xav kom qhuav sai thiab txhim kho.
Muaj ob peb yam tseem ceeb tshaj plaws uas cuam tshuam txog kev ziab ntim ntawm tus ziab: 1 cov khoom xyaw ntawm tus cwj pwm (khawm pigment, binder thiab lwm yam khoom siv ntxiv); 2 cov khoom ntawm cov khoom siv substrate (xws li permeability); 3 qhov xwm txheej luam tawm (number case hloov, nyiaj tau los) Ntawv qhov siab qhov siab, luam ntawv ceev); 4 cov kab mob climatic (sab hauv tsev sov, av noo); 5 ziab ziab ziab (xws li cov ndlwg huab cua ntawm ntiv taw xoo, lub sij hawm tshwm sim, hom muaj zog, thiab lwm yam). Kub yog qhov tseem ceeb tshaj. Feem ntau hais lus, siab dua qhov kub, qhov zoo dua. Vim tias qhov siab dua, qhov kub ceev ntawm tus ncej number polymerization, lub zog ntawm tus cwj pwm me dua, qhov zoo dua qhov nkag mus, thiab ceev ceev cov tshuaj ua kom qhuav.
Paub qhov tseeb ua rau luam tawm hluav taws xob hluav taws xob
Hauv kev luam ntawv, qee zaus ntawv lossis ntawv luam tawm yog adsorbed thiab adhered rau txhua lwm yam, raws li yog daim ntawv nto muaj lub tshuab nqus tsev nqus thiab ua kom tsis yooj yim cais. Qhov no tshwm sim yog luam tawm hluav taws xob hluav taws xob. Nyob rau hauv cov huab cua qhuav, daim ntawv luam tawm yog tshwj xeeb tshaj yog nkag mus rau hluav taws xob zoo li qub. Nws tuaj yeem ua rau obstacles rau ntawv pub mis, ntawv xa thiab ntawv txiav. Tsis tas li ntawd, nws tsis tuaj yeem cia daim ntawv los yog nquag pom ob nplooj ntawv, cov ntawv khoob khoob, cov ntawv xa tawm, thiab kev poob qis. Qhov kev tshwm sim txo cov khoom tsim tawm thiab cov khoom ua tau zoo. Yog li no, nws yog qhov tseem ceeb ntawm kev nkag siab txog qhov luam tawm zoo li qub thiab tswv cov tswv yim tiv thaiv kev lag luam.
Thaum twg daim ntawv muaj cov dej ntau, nws tuaj yeem dhau los ua tus xaib hluav taws xob; conversely, thaum cov ntsiab lus dej tsawg, nws yog tsis, thiab daim ntawv yog nws rau hluav taws xob zoo li qub: Ua ntej, cov txheej txheem papermaking tsis haum. Qhov ntawd yog, thaum lub sijhawm ua cov txheej txheem xa ntawv, vim cov ntsiab lus ntawm cov khoom siv roj ntsha (alum, sodium chloride, etc.), cov ntsiab lus ntawm cov khoom siv (ntau thaj chaw, thiab lwm yam) ntau dhau lawm, thiab daim ntawv yuav raug kub thiab qhov siab thaum lub sij hawm ziab thiab calendering. Ntawv nrog high voltage static hluav taws xob. Thib ob, daim ntawv tsis muab khaws cia. Yog hais tias muaj kev sib txawv ntawm qhov kub thiab txias ntawm daim ntawv rhiav, daim ntawv yuav tsis cuam tshuam rau cov ntawv sau npe vim qhov txawv ntawm cov dej noo noo, thiab nws yuav ua rau yooj yim rau hluav taws xob, uas yuav ua rau tsis txaus txhuam. Tsis tas li ntawd, daim ntawv tso tawm ntawv ua ntej luam ntawv luv heev, los yog cov stacking siab dhau heev lawm, kom daim ntawv thiab lub chaw luam ntawv kub tsis muaj lub sij hawm zoo, ua rau daim ntawv yuav tsum tau electrostatically them. Qhov thib peb yog qhov kev sib txuam luam tawm ua rau hluav taws xob zoo li qub. Thaum twg cov dej ntsiab lus ntawm daim ntawv yog tsawg dua, daim ntawv yuav raug ntau heev qhuav. Thaum lub sij hawm luam ntawv, vim muaj kev sib txhuam thiab kev siab ntawm daim ntawv pub, luam tawm, thiab lwm yam., Cov electrons sab nraum daim ntawv nucleus ploj thiab generated, thiab daim ntawv yog electrostatically nqi.
Daim ntawv yog zoo li qub thiab qhov txawv yog txawv. Muaj ib qho laj thawj, thiab muaj ntau yam teeb meem uas tsis zoo. Txhua hom ntawv, txawm tias tib hom ntawv, cov khoom siv no thiab cov batch yav dhau los, qhov loj ntawm qhov hluav taws xob zoo li qub tsis yog tib yam, uas yog, qhov hluav taws xob yuav txawv. Ib qho tseem ceeb yog qhov hluav taws xob ntawm ob sab ntawm daim ntawv yog cov lus sib txawv thaum lawv tau electrostatically them, thiab cov stacking ntawm sab xub ntiag thiab sab nraum qab ntawm daim ntawv yog cov ntse thaum luam ntawv, uas yog sab xub ntiag los yog sab nraum qab ntsej muag upward. Yog li ntawd, cov ntaub ntawv uas sib txuas lus nrog rau sab nrauv thiab sab nraub qis yog sib zog ua kom sib haum, thiab tsis yooj yim sib cais, uas ua rau muaj kev nyuaj siab txog kev luam ntawv, kev xa xov, kev xa xov, thiab daim ntawv tso tawm.
Txhawm rau tiv thaiv kev cuam tshuam ntawm kev luam hluav taws xob, peb yuav tsum xub tswj los ntawm lub hauv paus. Rau cov ntawv uas muaj hluav taws xob zoo li qub, nws tuaj yeem raug tshem tawm mus ib ntus, thiab lub sij hawm npaj yuav tsum muab ncua kom haum. Lub ntsuas kub thiab av noo ntawm lub tsev qiv ntawv ntawv yuav tsum raug tswj 18 ° C-20 ° C, thiab tus txheeb ze ntawm cov huab cua yuav tsum yog ntawm 60-65%. Nws pab txo lossis tshem tawm hluav taws xob hauv daim ntawv. Secondly, daim ntawv no yog siv los tshem tawm hluav taws xob hauv hluav taws xob los ntawm daim ntawv. Thaum siv daim ntawv ceev nrooj, siv lub tshuab ntawv los tuav cov ntawv uas muaj hluav taws xob zoo li qub. Thaum dai thiab ziab khaub ncaws, them nyiaj rau kev sib koom tes ntawm lub cav ceev thiab cua tshuab. Thaum lub tshuab ceev ceev, qhov ntsuas huab cua sov yog tswj li ntawm 80-85%. Conversely, thaum lub tshuab ceev qeeb, huab cua txias cia nyob rau ntawm 70-80. %. Yuav tsum tau ua raws li kev tshoov siab: thaum dai, lub thickness ntawm txhua pawg ntawv yuav tsum tsis pub dhau 10 hli. Thib peb, cov cua kub hnyav thaum muaj xwm ceev tshem tawm hluav taws xob. Thaum muaj hluav taws xob hauv hluav taws xob thaum lub sij hawm luam ntawv ntawm daim ntawv txiav, "vapor method" yuav siv tau los ua kom qhuav sai daim ntawv kom tsis txhob muaj hluav taws xob ntawm daim ntawv thiab ua tiav daim luam ntawv sai li sai tau.
Tshem tawm ntawm hluav taws xob hauv hluav taws xob los ntawm daim ntawv tuaj yeem ua tau nrog txoj kev tshem tawm txoj kev uas muab cov ntawv siab dua, dej ntsiab lus thiab kev siv ib qho kev tshem tawm zoo li qub. Txoj kev yog:
1. Nruab ib qho khoom siv cua txias rau hauv qhov Txiav Txim Siab los kho lossis tswj qhov kub thiab txias ntawm lub Rhiav luam ntawv raws li lub xov hluav taws xob zoo li qub. Feem ntau, lub khw kub yog hloov thaum nruab nrab ntawm 18 ° C thiab 20 ° C, thiab cov cua kub ntawm cov txheeb ze nyob nruab nrab ntawm 60-65%. Yog tias daim ntawv them nyiaj ntau dua, kho qhov nruab nrab ntawm cov pa nruab nrab ntawm 80-85%.
2. Nruab ib qho tshem tawm rau ntawm qhov xovxwm. Tshem tawm cov hluav taws xob zoo ntawm daim ntawv los ntawm kev kho qhov teeb meem lossis qhov siab. Yog tias daim ntawv zoo li qub, siv cov khoom siv hluav taws xob los yog siab heev. Yog tias hluav taws xob tsis zoo, tsis txhob poob siab thiab siab.
3. Tshem tawm cov hluav taws xob hluav taws xob muaj hluav taws xob nrog cov isotope emitter. Isotopic hluav taws xob yeej zoo ib yam li hluav taws xob ntawm qhov kev tshem tawm ntawm lub xeev. Nws yog ionize ntau yam molecules pa rau hauv ions. Vim tias cov ions muaj ntau lub zog hluav taws xob, lawv ua tau zoo cov neeg siv hluav taws xob. Thaum daim ntawv dhau los ntawm qhov chaw ion, qee qhov hluav taws xob zoo li qub. Nws yog neutralized thiab lwm feem yog tshem tawm ntawm cov huab cua ions, yog li ua tiav lub hom phiaj ntawm kev tshem tawm hluav taws xob zoo li qub.