Cov lus piav qhia: Cov kab lus no feem ntau qhia txog kev tswj cov ntsiab lus ntawm cov txheej txheem tsis muaj kuab tshuaj, suav nrog, kev tswj qhov kub thiab txias, kev tswj tus nqi txheej, kev tswj nruj, tswj kev tswj, number case thiab kua nplaum sib txuam, tswj cov av noo thiab ib puag ncig, kua nplaum preheating, thiab lwm yam.
Solvent free composites tau siv ntau zuj zus, thiab yuav ua li cas kom siv tau zoo ntawm cov txheej txheem no yog lub ntsiab lus ntawm kev txhawj xeeb rau txhua tus.Yuav kom siv tau zoo ntawm cov kuab tshuaj tsis muaj tshuaj, tus sau xav kom cov tuam txhab lag luam uas siv ntau yam khoom siv tsis muaj kuab tshuaj los yog ob lub tog raj kheej kua nplaum, uas yog, siv ob lub tog raj kheej nplaum, ib qho uas muaj cov nplaum nplaum uas npog feem ntau ntawm cov khoom tsim, thiab lwm yam xaiv ib tug haumxeeb nplaum haum rau saum npoo los yog puab txheej raws li ib tug ntxiv raws li tus neeg muas zaub cov khoom qauv.
Cov txiaj ntsig ntawm kev siv ob lub tog raj kheej roj hmab yog: nws tuaj yeem ua rau cov ntawv thov ntau yam ntawm cov kuab tshuaj tsis muaj kuab lom, txo cov emissions, muaj cov nqi qis, thiab kev ua haujlwm siab.Thiab tsis tas yuav tsum nquag ntxuav cov kua nplaum lub tog raj kheej, hloov cov nplaum nplaum, thiab txo cov khib nyiab.Koj tuaj yeem xaiv cov nplaum raws li cov khoom lag luam thiab cov neeg siv khoom kom ntseeg tau cov khoom zoo.
Nyob rau hauv tus txheej txheem ntawm kev pab neeg mus sij hawm ntev, kuv kuj tau sau tseg ib co txheej txheem tswj cov ntsiab lus uas yuav tsum tau them sai sai rau thiaj li yuav ua tau ib tug zoo txoj hauj lwm nyob rau hauv hnyav-free composite.
1. Huv
Yuav kom ua tiav cov kuab tshuaj zoo-dawb composite, thawj qhov uas yuav tsum tau ua yog ua kom huv, uas kuj yog ib qho yooj yim saib xyuas los ntawm cov tuam txhab lag luam.
Cov menyuam ruaj khov, ntsuas nruj cov menyuam, cov menyuam txheej txheej, txheej txheej siab cov menyuam, cov menyuam sib xyaw ua ke, sib xyaw cov raj, lub ntsiab thiab kho tus neeg sawv cev ntawm lub tshuab sib xyaw, nrog rau ntau yam kev qhia chais, yuav tsum huv thiab tsis muaj cov khoom txawv teb chaws, vim hais tias tej khoom txawv teb chaws nyob rau hauv cov cheeb tsam no yuav ua npuas thiab dawb me ntsis nyob rau saum npoo ntawm cov zaj duab xis composite.
2. Kev tswj qhov kub thiab txias
Cov khoom tseem ceeb ntawm cov nplaum tsis muaj kuab lom yog NCO, thaum tus neeg ua haujlwm kho yog OH.Qhov ceev, viscosity, kev ua tau zoo ntawm cov khoom tseem ceeb thiab kho, nrog rau yam xws li kev pabcuam lub neej, qhov kub thiab txias, qhov kub thiab lub sijhawm ntawm cov nplaum, tuaj yeem cuam tshuam rau qhov zoo ntawm cov khoom sib xyaw.
Solvent free polyurethane nplaum muaj viscosity siab nyob rau hauv chav tsev kub vim tsis muaj me me hnyav molecules, siab intermolecular rog, thiab tsim ntawm hydrogen bonds.Cov cua sov tuaj yeem txo cov viscosity zoo, tab sis qhov kub thiab txias ntau dhau tuaj yeem ua rau gelation yooj yim, tsim cov khoom hnyav molecular hnyav, ua rau txheej txheej nyuaj lossis tsis sib xws.Yog li ntawd, kev tswj cov txheej txheej kub yog qhov tseem ceeb heev.
Feem ntau, cov khoom siv nplaum yuav muab cov neeg siv khoom nrog qee qhov kev siv tsis tau raws li kev siv, thiab qhov kev siv kub yog feem ntau muab raws li tus nqi ntau.
Qhov siab dua qhov kub ua ntej sib tov, qhov viscosity qis dua;qhov siab dua qhov kub tom qab sib tov, qhov siab dua qhov viscosity.
Kev hloov kho qhov kub thiab txias ntawm cov menyuam ntsuas thiab txheej txheej cov menyuam feem ntau yog nyob ntawm qhov viscosity ntawm cov nplaum.Qhov siab dua qhov viscosity ntawm cov nplaum, qhov kub ntawm cov menyuam ntsuas ntau dua.Qhov kub ntawm cov menyuam sib xyaw feem ntau tuaj yeem tswj tau ntawm thaj tsam 50 ± 5 ° C.
3.Glue npaum li cas tswj
Raws li cov ntaub ntawv sib txawv, cov kua nplaum sib txawv tuaj yeem siv tau.Raws li pom nyob rau hauv lub rooj, qhov kwv yees ntau ntawm cov kua nplaum yog muab, thiab kev tswj cov kua nplaum ntau lawm yog txiav txim siab los ntawm qhov sib txawv thiab ceev piv ntawm cov ntsuas cov menyuam thiab cov menyuam taag.Daim ntawv thov kua nplaum
4. kev tswj siab
Vim yog qhov tseeb tias cov txheej txheem txheej txheej tswj cov kua nplaum siv los ntawm qhov sib txawv thiab qhov sib piv ntawm ob lub teeb chais, qhov loj ntawm txheej txheej yuav cuam tshuam ncaj qha rau cov kua nplaum siv.Qhov siab dua, qhov me me ntawm cov kua nplaum siv.
5.Qhov compatibility ntawm number case thiab kua nplaum
Kev sib raug zoo ntawm cov kua nplaum uas tsis muaj kuab lom thiab cov inks feem ntau yog qhov zoo tam sim no.Txawm li cas los xij, thaum cov tuam txhab hloov cov tshuab luam ntawv lossis cov nplaum nplaum, lawv tseem yuav tsum tau ua qhov kev sim ua tau zoo.
6. Kev tswj nruj
Kev tswj nruj yog qhov tseem ceeb heev hauv cov kuab tshuaj tsis muaj qhov sib xyaw vim tias nws qhov pib adhesion tsawg heev.Yog hais tias qhov nro ntawm lub hauv ntej thiab nram qab daim nyias nyias tsis sib haum, muaj peev xwm hais tias thaum lub sij hawm maturation txheej txheem, lub shrinkage ntawm daim nyias nyias yuav txawv, uas ua rau cov tsos ntawm npuas thiab tunnels.
Feem ntau, qhov thib ob pub mis yuav tsum raug txo kom ntau li ntau tau, thiab rau cov yeeb yaj kiab tuab, qhov nro thiab kub ntawm cov menyuam sib xyaw yuav tsum tau nce kom tsim nyog.Sim kom tsis txhob curling ntawm cov zaj duab xis sib xyaw kom ntau li ntau tau.
7.Control humidity thiab nws ib puag ncig
Tsis tu ncua saib xyuas kev hloov pauv ntawm cov av noo thiab kho qhov sib piv ntawm tus neeg sawv cev tseem ceeb thiab tus neeg sawv cev kho kom haum.Vim yog qhov ceev ceev ntawm cov kuab tshuaj tsis muaj kuab lom, yog tias cov av noo siab dhau lawm, cov ntaub ntawv sib xyaw ua ke nrog cov kua nplaum yuav tseem tuaj yeem cuam tshuam nrog cov dej noo hauv huab cua, noj qee qhov NCO, ua rau muaj tshwm sim xws li cov kua nplaum tsis qhuav thiab tsis zoo. peeling.
Vim lub siab ceev ntawm lub tshuab laminating tsis muaj kuab tshuaj, lub substrate siv yuav tsim hluav taws xob zoo li qub, ua rau cov ntawv luam tawm tau yooj yim nqus plua plav thiab impurities, cuam tshuam qhov zoo ntawm cov khoom.Yog li ntawd, qhov chaw ua haujlwm tsim khoom yuav tsum raug kaw, ua kom lub rooj cob qhia nyob rau hauv qhov xav tau ntawm qhov kub thiab txias.
8. Kua nplaum preheating
Feem ntau, cov kua nplaum ua ntej nkag mus rau lub tog raj kheej yuav tsum tau preheated ua ntej, thiab cov kua nplaum sib xyaw tsuas yog siv tau tom qab ua kom sov rau qee qhov kub kom ntseeg tau tias qhov hloov pauv ntawm cov kua nplaum.
9. Cov lus xaus
Nyob rau theem tam sim no uas cov kuab tshuaj tsis muaj kuab tshuaj thiab cov khoom sib xyaw qhuav sib xyaw ua ke, cov lag luam yuav tsum tau siv cov cuab yeej siv ntau tshaj plaws thiab cov txiaj ntsig.Cov txheej txheem tuaj yeem ua cov kuab tshuaj tsis muaj kuab lom, thiab nws yuav tsis qhuav sib xyaw.Tsim nyog thiab zoo npaj ntau lawm, thiab siv cov cuab yeej uas twb muaj lawm.Los ntawm kev tswj cov txheej txheem thiab tsim kom muaj cov ntaub ntawv khiav lag luam meej, cov khoom tsis tsim nyog yuav raug txo kom tsawg.
Post lub sij hawm: Dec-21-2023