Tam sim no muaj ob hom kuab-dawb cov nplaum rau ntim tshuab ntim yooj ywm, ib leeg thiab ob qho tib si sib xyaw. Lub sib chaws tivthaiv yog tsuas yog siv rau ntawv thiab nonwovens, uas tuaj yeem ua haujlwm tsis muaj kev sib xyaw thiab tsis muaj kev hloov kho qhov sib piv. Ob lub Cheebtsam muaj peev xwm siv tau rau ntau yam khoom siv ntim yooj ywm. Raws li kev paub ntawm tus kheej, cov nplooj ntawv no yuav piav qhia txog yuav ua li cas hloov qhov sib piv ntawm ob qho tib yam rau cov hom phiaj sib txawv thiab nws ua haujlwm li cas.
Firstly, kev sib xyaw cov ntsiab cai piv txwv ntawm cov kuab-laminated binders yog tsim.
Muaj peb yam rau qhov sib xyaw ua ke ntawm cov kuab tshuaj-dawb laminating:
1. Sim ua kom phim qhov sib xyaw sib xyaw ntawm A & B sib xyaw rau qhov hnyav.
A / B 'S cov kev sib xyaw sib xyaw muaj qhov zoo dua ntawm kev ua kom hnyav. Piv txwv li, x yog 100a tov nrog 90b, y yog 100a thiab 50b. 1% hloov ntawm B yuav ua rau muaj kev hloov pauv ntawm X thiab 2% ntawm Y thiab G. Hauv kev hloov pauv, ua rau muaj kev hloov ntau ntawm 2. 2 % thiab4%. Yog tias lawv qhov hnyav sib txawv, qhov no tuaj yeem ua rau Anomalies hauv qab no:
(1) A / B cov khoom siv yog qhov nyuaj sib xyaw kom zoo kom cov sib tov yog qhov sib xyaw yog qhov tsis xwm yeem.
(2) Vim tias qhov tsis muaj ntawm cov khoom B, lub siab ntawm kev tov khoom yog tsawg dhau los ua kom muaj kev sib txawv ntawm cov nplaum thiab cov kev poob qis.
2. Zoo li muaj peev xwm ua rau viscosity ntawm A & B Cheebtsam
Qhov qis dua lub viscosity ntawm kev tivthaiv A & B ntawm qhov tsim nyog kub, qhov zoo dua cov kev sib xyaw ua ke. Xav txog qhov kev txiav txim ntawm cov phau ntawv tuav, cov thawj coj ntawm ob qho tib si sib txawv. Qhov kub yuav tsum tau tswj cais cais kom haum tus nqi viscous. Ua kom sov ntawm qhov kub ntawm thawj ntu nrog ntau dua viscosity ua rau nws muaj txiaj ntsig zoo rau lwm qhov, thiab muaj txiaj ntsig rau ob qho khoom siv tshuaj thiab cov tso zis tawm.
3. Nce qhov kev zam ntawm A & B sib xyaw
Vim qee qhov sab nraud yam ntxwv nyob hauv Laminating, yuav tsum muaj qee qhov sib txawv hauv kev sib xyaw. Nthuav kev ua siab ntev ntawm A / B kev sib xyaw sib piv tau zoo tau them nyiaj rau cov nyhuv tsis zoo ntawm qhov tsis zoo. Piv txwv li, cov kuab nruj dawb wd8118A / B ntawm cov khoom tshiab sib xyaw ntawm 100: 60 - 85, ob leeg yog tau txais txiaj ntsig zoo los ntawm ntau tus neeg siv khoom.
Thib ob, lub hauv paus ntsiab lus thiab txoj kev ntawm kev sib xyaw sib hloov
(1) kho rau qhov kub thiab txias thiab cua noo
Nyob rau hauv dav dav, cov ntsiab lus ntawm cov ntsiab lus ntawm feem siab yog siab dua, thaum cov tshuaj tiv thaiv nrog huab cua thiab lub vapor hauv zaj duab xis nyob sab laug. Txawm li cas los xij, thaum lub caij ntuj sov, thaum muaj ntau cov pa cua sov hauv huab cua thiab cov yeeb yaj kiab muaj ntau dua cov ntsiab lus noo noo, uas yuav pab txhawb nqa cov tshuaj tsw qab ntau ntawm cov nplaum.
(2) kho rau cov khoom siv hauv mem thiab cov kuab tshuaj
Tshaj tawm tau yooj yim tshaj plaws yog luam tawm zaj duab xis, cov txheej txheem luam ntawv hauv tsev yog nrog cov kuab tshuaj khov kho tshuab luam ntawv. Nyob rau hauv cov kuab tshuaj hauv cov inks raws li kev ntxiv yuav muaj kev sib ntxiv thiab rhesive nrog cov tshuaj nplaum polyurethane tuaj yeem haus qee yam kom NCO.
Peb muaj kev txhawj xeeb nrog cov ntsiab lus huv thiab noo noo ntawm cov kuab tshuaj uas seem. Lawv yuav nyob twj ywm ntau dua lossis tsawg dua ntawm cov luam tawm, thiab cov khoom seem uas muaj feem ntau hydrogen yuav haus qee lub NCO. Yog tias thinner thiab retarder seem yog siab dua, peb tuaj yeem ntxiv ib qho los txhim kho cov txiaj ntsig.
(3) kho rau txhuas hloov
Ntau cov ntaub ntawv ntim khoom siv tau yooj yim aluminium, thiab cov txiaj ntsig ntawm cov txheej txheem ntawm ib qho kev sib xyaw ua ke thiab txo lub xeev hloov ntawm cov nplaum Cov.
Ncua Sijhawm: Apr-22-2021