khoom

Yuav Ua Li Cas Sib tov Cov Khov Tsis Pub Dawb?

Tam sim no muaj ob hom tshuaj hnyav uas tsis muaj kuab nplaum rau cov ntim tau yooj yim, ib leeg thiab ob npaug. Ib qho kev tivthaiv feem ntau yog siv rau ntawv thiab nonwovens, uas tuaj yeem ua haujlwm yam tsis muaj kev sib xyaw thiab tsis kho qhov sib piv. Cov khoom siv ob sab tuaj yeem siv rau ntau yam kev ntim khoom ntim tau yooj yim. Raws li kev paub dhau los ntawm tus kheej, nplooj ntawv no yuav piav qhia yuav hloov pauv li cas ntawm ob qho khoom siv rau lub hom phiaj sib txawv thiab nws ua haujlwm li cas.

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Ua ntej, qhov sib xyaw ua piv txwv txoj cai ntawm cov hnyav tsis pub dawb laminated khi tau tsim.

Muaj peb yam rau qhov sib xyaw ua piv txwv tsim cov kuab tshuaj dawb laminating nplaum:

1. Sim ua kom sib xyaw sib xyaw ntawm A & B cov khoom sib xyaw rau qhov hnyav.

A / B's compact blending ratio muaj qhov zoo ntawm qhov hnyav tib yam. Piv txwv, X yog 100A sib xyaw nrog 90B, Y yog 100A thiab 50B. 1 % kev hloov pauv B yuav ua rau 1.1 % qhov hnyav hloov pauv ntawm A feem ntawm X thiab 2 % ntawm Y. Feem ntau, kev hloov pauv 2 % hauv kev sib xyaw ua ke tau txais thaum lub sijhawm tsim khoom, ua rau qhov hnyav hloov ntawm 2. 2 %thiab 4%. Yog tias lawv qhov hnyav sib txawv, qhov no tuaj yeem ua rau qhov txawv txav hauv qab no:

(1) Cov khoom A / B nyuaj rau sib xyaw kom zoo kom cov dej sib tov tsis sib xws.

(2) Vim tias tsis muaj cov tivthaiv B, lub siab ntawm cov khoom sib tov qis dhau los kom ntseeg tau tias cov dej ntws tsis tu ncua, uas ua rau muaj qhov sib txawv ntawm cov nplaum thiab txo qis ntawm kev tsim khoom.

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2. Raws li ze li sai tau rau viscosity ntawm A & B Cheebtsam

Qhov qis dua qhov viscosity ntawm tivthaiv A & B ntawm qhov kub uas tsim nyog, qhov ua kom zoo dua qub. Xav txog qhov kev txiav txim ntawm phau ntawv tuav, thawj qhov viscosity ntawm ob qho khoom siv sib txawv heev. Qhov ntsuas kub yuav tsum tau tswj cais kom kho tus nqi khov. Ua kom qhov kub ntawm qhov qub nrog qhov viscosity siab dua ua rau nws nyob ze rau lwm qhov, thiab muaj txiaj ntsig zoo rau ob qho khoom siv sib xyaw ntsuas lub ntsuas thiab lub tso zis tso tawm.

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3. Ua kom siab ntev ntawm A & B sib tov

Vim yog qee yam sab nrauv hauv laminating, yuav tsum muaj qee qhov sib txawv hauv kev sib xyaw. Kev nthuav dav kev ua siab ntev ntawm A / B kev sib xyaw ua ke sib xyaw tuaj yeem ua tau zoo txhawm rau txhawm rau qhov tsis zoo ntawm qhov sib txawv no. Piv txwv li, cov tshuaj hnyav sib xyaw dawb WD8118A / B ntawm cov khoom siv tshiab los ntawm qhov sib xyaw ua ke ntawm 100: 75 mus rau sib xyaw ntawm 100: 60 - 85, ob qho tib si uas siv tau thiab tau txais los ntawm ntau cov neeg siv khoom.

Qhov thib ob, lub hauv paus ntsiab lus thiab txheej txheem ntawm kev sib xyaw ua kom haum

(1) Kho rau qhov kub thiab txias ib puag ncig

Feem ntau, cov ntsiab lus ntawm NCO hauv cov khoom A yog siab dua, thaum cov tshuaj tiv thaiv huab cua thiab cov pa hauv zaj duab xis nyob sab laug. Txawm li cas los xij, thaum lub caij ntuj sov, thaum muaj cua ntau dua hauv huab cua thiab zaj duab xis muaj cov dej noo ntau dua, cov khoom A yuav tsum tau nce kom haus cov pa ntau dhau, uas yuav pab txhawb cov tshuaj tiv thaiv tsim nyog.

(2) Kho rau cov khoom siv number case thiab hnyav hnyav

Feem ntau cov ntim tau hloov pauv tau luam tawm zaj duab xis, txheej txheem luam ntawv hauv tsev yog nrog hnyav hnyav gravure luam ntawv. Nyob rau hauv cov kuab tshuaj raws li cov tshuaj ntxiv yuav muaj qhov sib ntxiv thiab cov retarder, ob qho tib si yog polyurethane resin system, hauv cov nplaum nrog NCO cov tshuaj tiv thaiv tuaj yeem haus qee NCO.

Peb txhawj xeeb txog qhov huv thiab cov ntsiab lus noo ntawm cov kuab tshuaj seem. Lawv yuav nyob twj ywm ntau dua lossis tsawg dua ntawm cov ntawv luam tawm, thiab cov dej ua haujlwm tseem tshuav yuav haus qee NCO. Yog tias cov ntaub ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntuag tuaj yeem rov ua dua qub, peb tuaj yeem ntxiv ntu A txhawm rau txhim kho cov txiaj ntsig.

(3) Kho rau kev hloov txhuas

Ntau yam khoom ntim tau hloov pauv tau tam sim no aluminized, thiab cov txiaj ntsig ntawm kev nyuab siab rau txheej tuaj yeem txo qis los ntawm kev kho qhov sib xyaw sib xyaw ntawm A / B cov khoom kom ua rau lawv muag, feem ntau ua rau B tiv thaiv kom tsim nyog thiab txo lub xeev hloov pauv ntawm txhuas los ntawm kev cuam tshuam cov nplaum .

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Sijhawm Tshaj Tawm: Plaub Hlis -22-2021