Abstract: Cov kab lus txheeb xyuas nyob rau hauv cov ntsiab lus hais txog cov khoom zoo ntawm levelation ntawm cov lus nplaum hauv Lamination ua haujlwm ntawm kev txiav txim siab los ntawm kev txiav txim yog tias muaj'Dawb me ntsis' lossis 'npuas', nws yog lub pob tshab ntawm cov lus laminated cov khoom uas tuaj yeem yog cov qauv ntsuas kev ua haujlwm hauv cov nplaum.
1. Cov teeb meem bubble thiab theem ntawm cov kua nplaum
Dawb me ntsis, npuas, thiab tsis zoo transparency yog cov tsos tshwm sim zoo teeb meem hauv kev sib xyaw. Feem ntau, cov khoom siv uas cov processors ntaus cim cov teeb meem saum toj no rau kev txom nyem theem ntawm cov nplaum!
1.1Qhov kua nplaum tsis yog lo kua nplaum
Composite cov txheej txheem cov txheej txheem yuav xa rov qab thiab tsis siv cov nplaum rau cov neeg xa khoom raws li kev txiav txim siab ntawm cov nplaum tsis zoo, lossis cov ntaub ntawv tsis txaus siab lossis cov ntawv foob nrog cov neeg xa khoom.
Nws yuav tsum raug sau tseg tias cov kua nplaum tau txiav txim siab kom muaj kev ua haujlwm leveling tsis zoo yog "kua nplaum ua haujlwm los ntawm cov neeg siv khoom thiab muaj viscosity ntawm ib tus nqi tshwj xeeb. Cov kua nplaum uas tau rov qab yog cov khoom siv tsis tau cia ntawm cov kua nplaum qub.
Ob lub thoob ntawm "kua nplaum" yog cov ntsiab lus sib txawv tag nrho thiab khoom!
1.2Txoj kev ntsuas rau cov kua nplaum leveling
Cov kev ntsuas ntsuas cov txuj ci rau kev ntsuas kev ua tau zoo ntawm cov nplaum ntawm cov nplaum yuav tsum yog viscosity thiab dos ntub nruj nro. Los yog theej, "cov kua dej fluidity" yog kev sib xyaw ntawm cov kua nplaum "thiab" qhov tsis muaj zog ntawm cov kua nplaum ".
Nyob rau hauv chav tsev kub, lub nplaim ntub nruj nro ntawm Ethyl acetate yog hais txog 26mn / m.
Lub thoob dej qub siab (cov ntsiab lus muaj zog) ntawm cov kuab tshuaj polyurethane siv hauv cov khoom siv cov khoom siv sib xyaw ua ke yog feem ntau ntawm 50% -80%. Ua ntej siv cov khoom sib xyaw ua ke, cov nplaum saum toj no yuav tsum tau ua rau ib puag ncig ua haujlwm ntawm 20% -45%.
Vim tias qhov tseeb tias lub ntsiab tivthaiv hauv kev daws teeb meem kev ua haujlwm tau zoo ntawm cov av ntub dej ruaj khov ntawm Ethyl acetate nws tus kheej.
Yog li ntawd, ntev li ntev tau pom saum npoo av nro uas tau siv ua tau raws li cov kev tsim tau yooj yim, cov wettabive ntawm cov nplaum yuav zoo!
Kev tshuaj xyuas ntawm cov fellity ntawm kua nplaum yog viscosity. Hauv thaj teb ntawm kev ua tiav, qhov thiaj li hu ua viscosity (piv txwv li ua haujlwm viscosity thaum ntws tawm ntawm lub khob viscosity thaum lub sij hawm siv cov qauv viscosity cup. Nws tuaj yeem raug txiav txim siab tias cov kua dej ua haujlwm los ntawm cov kua nplaum sib txawv muaj qhov "ua haujlwm viscosity" muaj qhov ua haujlwm "kua nplaum" kua nplaum "!
Nyob rau hauv lwm yam kev tsis hloov pauv, qhov qis dua "ua haujlwm viscosity" npaj nrog tib cov kab kos, nws zoo dua "nplaum"!
Ntau yam tshwj xeeb, rau ob peb qib sib txawv ntawm cov nplaum, yog tias cov qauv viscesating yog 15 vib nas this npaj los ntawm cov adhesives muaj tib "kua nplaum leveling".
1.3Qhov cov khoom ntiag tug ntawm cov kua nplaum yog cov yam ntxwv ntawm kua dej ua haujlwm
Qee cov dej cawv tsis tsim cov kua dej viscous thaum lub thoob tau qhib, tab sis theej lub jelly zoo li tsis muaj fluidity. Lawv yuav tsum tau yaj thiab diluted nrog tus nqi tsim nyog los ntawm cov organic kom haum kom tau txais cov khoom siv xav tau thiab viscosity ntawm kua nplaum.
Nws yog pom tseeb tias kev ua yeeb yam ntawm cov kua nplaum yog ib qho kev ntsuam xyuas ntawm kev ua haujlwm ntawm kev ua haujlwm "kev ntsuam xyuas ua haujlwm", ntau dua li kev ntsuas ntawm undilute barrel kua nplaum.
Yog li ntawd, nws tsis yog tus cwj pwm tsis zoo ntawm cov kua nplaum rau cov yam ntxwv ntawm ib hom kua nplaum ntawm cov kua nplaum qub!
2.Crafrans cuam tshuam rau kev ua tiav theem ntawm cov nplaum
Txawm li cas los xij, rau cov nplaum ua haujlwm ua haujlwm, muaj qhov sib txawv ntawm nws cov nplaum qib dej!
Raws li tau hais ua ntej lawm, cov ntsuas ntsuas tseem ceeb rau kev ntsuam xyuas cov khoom ua kua theem ntawm cov khoom ua haujlwm ntawm cov nplaum ua haujlwm yog cov av ntub thiab ua haujlwm viscosity. Qhov taw qhia ntawm nplaim ntub kev nrog tsis pom zoo hloov pauv ntawm cov kev ua haujlwm zoo. Yog li ntawd, lub ntsiab lus ntawm cov nplaum tsis zoo yog tias thaum ua tiav cov txheej txheem ua tiav, cov viscosity ntawm cov ntsiab lus tsis txaus ntseeg vim qee yam, ua rau muaj kev txo qis hauv nws txoj kev ua tau zoo!
Cov xwm txheej dab tsi tuaj yeem ua rau cov kev hloov pauv ntawm cov kua nplaum ntawm cov kua nplaum thaum nws daim ntawv thov?
Muaj ob lub ntsiab uas tuaj yeem ua rau hloov pauv ntawm cov kua nplaum ntawm cov kua nplaum, ib qho kub ntawm cov kua nplaum, tab sis cov concentration cov kua nplaum.
Raws li ib txwm muaj xwm txheej, lub viscosity ntawm cov dej tsawg dua nrog kev nce kub.
Ntawm cov neeg siv phau ntawv qhia tau muab los ntawm cov tuam txhab nplaum sib txawv, ua ntej siv cov vas vas ntawm cov kua nyeem ntawm 20 ° C lossis 25 ° C (piv txwv li qhov ntsuas kub ntawm cov nplaum daws nws tus kheej) feem ntau yog qhia.
Ntawm cov neeg siv khoom sab, yog tias qhov chaw cia ntawm lub thoob qub ntawm cov kua nplaum thiab txias (qhov kub thiab qis dua 20 ° C lossis 25 ° C. Ib txwm muaj, qhov tseeb viscosity tus nqi ntawm cov kua nplaum npaj kuj tseem yuav qis dua cov nqi viscosity nyob hauv phau ntawv. Nyob rau hauv lub caij ntuj no, qhov kub ntawm lub npaj adhesive yuav qis dua 5 ° C, thiab nyob rau lub caij ntuj sov, qhov kub ntawm lub caij ntuj sov tau ua kom tiav dua 30 ° C!
Nws yuav tsum tau sau tseg tias kev ua kom zoo nkauj yog ib qho tsis muaj zog tshaj plaws. Thaum lub sij hawm volatilization txheej txheem ntawm ethyl acetate, nws yuav nqus tau ntau npaum li cas ntawm cov cua sov los ntawm cov tshuaj nplaum thiab cov huab cua ib puag ncig.
Nyob rau tam sim no, feem ntau laminating units nyob rau hauv cov tshuab sib xyaw qhib thiab nruab nrog cov kuab tshuaj hauv zos, yog li ntau cov kuab tshuaj yuav yaj los ntawm cov nplaum disc thiab barrel. Raws li kev soj ntsuam, tom qab lub sijhawm ua haujlwm, qhov ntsuas kub ntawm cov kua nplaum ua dej nyob hauv cov kua nplaum ua haujlwm ntau dua 10 ° C qis dua li qhov chaw nyob ib puag ncig kub!
Raws li qhov ntsuas kub ntawm cov kua nplaum txo qis, lub viscosity ntawm cov kua nplaum yuav nce ntxiv.
Yog li, kev ua haujlwm leveling ntawm cov kuab tshuaj nplaum kom maj mam ua kom muaj kev cuam tshuam nrog lub sijhawm ntawm cov khoom siv lub sijhawm
Hauv lwm lo lus, yog tias koj xav tswj hwm qhov ruaj khov ntawm cov kuab tshuaj nplaum theem, koj yuav tsum siv hom viscosive lossis lwm yam zoo sib xws txhais tau tias kom cov nplaum viscosity nyob thoob plaws hauv cov txheej txheem thov.
3.Cawv cov ntsuas ntsuas rau cov kua nplaum kom raug
Qhov kev ntsuam xyuas ntawm cov txiaj ntsig theem ntawm cov kua nplaum yuav tsum yog cov khoom muaj txiaj ntsig ntawm cov khoom siv tau tom qab tau txais los tom qab cov kua nplaum yog qhov "tsim tau ntau tshaj plaws" ntawm lub tsheb yog Tus yam ntxwv ntawm cov khoom lag luam, kev tsav tsheb tiag tiag ntawm lub tsheb ntawm txoj kev raws li cov xwm txheej tshwj xeeb yog lwm qhov txiaj ntsig.
Cov kua nplaum zoo leveling yog qhov tseem ceeb rau kev ua tiav qib theem zoo. Txawm li cas los xij, kev ua tau zoo ntawm cov kua nplaum yuav tsis tas yuav ua rau cov kua nplaum zoo heev (piv txwv li cov kua nplaum tsis zoo.
4.Qhov kev cuam tshuam ntawm cov txiaj ntsig ntawm cov kua nplaum leveling thiab qhov tshwm sim ntawm "me ntsis" thiab "npuas"
Cov tsis zoo "dawb, npuas, thiab pob tshab" yog ob peb cov txiaj ntsig uas tsis xav tau ntawm cov khoom lag luam sib xyaw. Muaj ntau cov laj thawj rau cov teeb meem saum toj no, thiab cov kua nplaum tsis zoo yog ib qho ntawm lawv. Txawm li cas los xij, vim li cas rau kev txom nyem ntawm kua nplaum tsis yog vim yog tsis zoo ntawm cov kua nplaum!
Qhov tsis muaj txiaj ntsig ntawm cov kua nplaum tsis tuaj yeem tsis tsim nyog ua "dawb" lossis "npuas", tab sis nws tuaj yeem cuam tshuam lub pob tshab ntawm zaj duab xis sib xyaw. Yog tias micro tiaj tus ntawm cov composite yog neeg pluag, txawm tias theem theem ntawm cov nplaum yog qhov zoo, tseem muaj peev xwm "me ntsis pob zeb".
Lub Sijhawm Post: Jan-17-2024