Aluminium txheej tsis tsuas yog muaj cov yam ntxwv ntawm cov yas zaj duab xis, tab sis kuj rau qee qhov hloov pauv aluminium ntawv ci, ua lub luag haujlwm hauv kev txhim kho cov khoom qib, thiab tus nqi qis. Yog li ntawd, nws yog dav siv nyob rau hauv ntim ntawm biscuits thiab khoom noj txom ncauj. Txawm li cas los xij, nyob rau hauv cov txheej txheem ntau lawm, feem ntau muaj teeb meem ntawm txhuas txheej hloov, uas ua rau kom txo qis lub zog tev ntawm cov yeeb yaj kiab sib xyaw, ua rau txo qis hauv cov khoom lag luam, thiab tseem cuam tshuam rau qhov zoo ntawm cov khoom ntim. Dab tsi yog vim li cas rau kev hloov pauv ntawm txhuas txheej? Dab tsi yuav tsum tau them nyiaj mloog rau hauv kev ua haujlwm ntawm kev sib xyaw tshuab?
Yog vim li cas lub aluminium txheej yog delamination?
Tam sim no, feem ntau siv aluminium plating zaj duab xis yog CPP aluminium plating zaj duab xis thiab PET aluminium plating zaj duab xis, thiab cov txheej txheem sib xyaw ua ke xws li OPP / CPP aluminium plating, PET / CPP aluminium plating, PET / PET txhuas, thiab lwm yam. Hauv kev siv tswv yim, qhov teeb meem feem ntau yog PET composite PET aluminium plating.
Lub ntsiab yog vim li cas rau qhov no yog vim hais tias raws li ib tug substrate rau txhuas plating, CPP thiab PET muaj ib tug tseem ceeb sib txawv ntawm tensile zog. PET muaj qhov nruj dua, thiab ib zaug sib xyaw nrog cov ntaub ntawv uas tseem muaj kev nruj heev,Thaum lub sij hawm kho cov txheej txheem ntawm cov nplaum zaj duab xis, lub xub ntiag ntawm cohesion tuaj yeem yooj yim ua rau muaj kev puas tsuaj rau cov adhesion ntawm aluminium txheej, ua rau kev tsiv teb tsaws ntawm aluminium txheej. Tsis tas li ntawd, cov nyhuv permeation ntawm cov nplaum nws tus kheej kuj muaj qee yam cuam tshuam rau nws.
Kev ceev faj thaum lub sij hawm ua cov txheej txheem sib xyaw
Hauv kev ua haujlwm ntawm cov txheej txheem sib xyaw, kev saib xyuas yuav tsum tau them rau cov hauv qab no:
(1) Xaiv cov nplaum tsim nyog.Thaum cov txheej txheej aluminium sib xyaw, ceev faj tsis txhob siv cov nplaum uas tsis muaj viscosity, vim tias cov nplaum nplaum qis muaj qhov hnyav molecular thiab tsis muaj zog intermolecular rog, uas ua rau muaj zog molecular kev ua si thiab muaj feem cuam tshuam rau lawv cov adhesion rau lub substrate los ntawm txhuas txheej. zaj duab xis.
(2) Txhim kho qhov softness ntawm daim nplaum nplaum.Txoj kev tshwj xeeb yog txo tus neeg saib xyuas thaum npaj cov nplaum ua haujlwm, txhawm rau txo qhov kev sib txuas ntawm cov tshuaj tiv thaiv kab mob ntawm tus neeg sawv cev tseem ceeb thiab tus neeg sawv cev kho, yog li txo qhov brittleness ntawm cov nplaum zaj duab xis thiab tswj kom muaj kev ywj pheej zoo thiab extensibility, uas yog qhov tsim nyog los tswj kev hloov pauv ntawm cov txheej txheem aluminium.
(3) Cov kua nplaum siv yuav tsum tsim nyog.Yog tias cov nplaum siv me me dhau lawm, nws yuav ua rau muaj kev sib xyaw ua ke qis dua thiab yooj yim tev; Tab sis yog tias tus nqi ntawm cov nplaum siv ntau dhau, nws tsis zoo. Ua ntej, nws tsis yog kev lag luam. Qhov thib ob, qhov loj ntawm cov nplaum thov thiab lub sijhawm kho ntev muaj qhov muaj zog nkag mus rau ntawm cov txheej txheej aluminium. Yog li yuav tsum xaiv cov kua nplaum tsim nyog.
(4) Tswj qhov nro kom zoo. Thaum unwinding aluminium plating,qhov nro yuav tsum tau tswj kom zoo thiab tsis siab dhau. Yog vim li cas yog lub txhuas txheej yuav ncab nyob rau hauv nro, ua rau elastic deformation. Aluminium txheej yog sib txuas yooj yim rau loosen thiab adhesion kuj txo.
(5) Maturation ceev.Nyob rau hauv txoj cai, qhov curing kub yuav tsum tau nce ntxiv kom ceev qhov curing ceev, thiaj li yuav pab kom cov nplaum molecules kom sai sai solidify thiab txo cov kev puas tsuaj ntawm kev puas tsuaj.
Lub ntsiab yog vim li cas rau aluminium plating hloov
(1) Ua rau muaj kev ntxhov siab hauv cov kua nplaum
Thaum lub sij hawm kub-kub curing txheej txheem ntawm ob-cov khoom nplaum, cov kev ntxhov siab sab hauv tsim los ntawm kev sib txuas ceev ceev ntawm tus neeg sawv cev tseem ceeb thiab tus neeg sawv cev curing ua rau kev hloov pauv ntawm txhuas plating. Qhov laj thawj no tuaj yeem ua rau pom los ntawm kev sim yooj yim: yog tias cov txheej txheem txhuas tsis tau muab tso rau hauv chav kho thiab kho hauv chav sov (nws yuav siv li ob peb hnub los kho tag nrho, tsis muaj qhov tseem ceeb ntawm kev tsim khoom, tsuas yog kev sim), lossis kho tau. nyob rau hauv chav tsev kub rau ob peb teev ua ntej nkag mus rau hauv chav kho mob, qhov tshwm sim ntawm kev hloov pauv ntawm aluminium yuav zoo heev los yog tshem tawm.
Peb pom tias siv 50% cov ntsiab lus cov nplaum nplaum rau cov yeeb yaj kiab aluminium plating, txawm tias muaj cov ntsiab lus tsis tshua muaj nplaum, yuav ua rau muaj kev hloov pauv zoo dua. Qhov no yog qhov tseeb vim hais tias lub network qauv tsim los ntawm cov khoom tsis tshua muaj cov nplaum nplaum thaum lub sij hawm crosslinking txheej txheem tsis yog tuab li lub network qauv tsim los ntawm cov ntsiab lus siab cov nplaum, thiab cov kev ntxhov siab sab hauv tsim tsis zoo li qub, uas tsis txaus rau densely thiab uniformly. ua rau ntawm txhuas txheej, li no alleviating los yog tshem tawm cov phenomenon ntawm txhuas hloov.
Tsuas yog qhov sib txawv me ntsis ntawm tus neeg sawv cev tseem ceeb thiab cov nplaum zoo tib yam, tus neeg sawv cev kho rau cov txhuas plating adhesive feem ntau tsawg dua li cov nplaum zoo tib yam. Kuj tseem muaj lub hom phiaj los txo lossis txo qhov kev ntxhov siab sab hauv uas tsim los ntawm cov nplaum sib txuas thaum lub sijhawm kho, txhawm rau txo cov kev hloov pauv ntawm aluminium plating txheej. Yog li ntawm tus kheej, kuv ntseeg hais tias txoj kev "siv high-temperature ceev solidification los daws cov hloov ntawm txhuas txheej" yog tsis ua tau, tab sis es counterproductive. Ntau lub tuam txhab tam sim no siv cov nplaum nplaum dej thaum cov yeeb yaj kiab aluminium plating, uas tuaj yeem ua pov thawj los ntawm cov yam ntxwv ntawm cov dej-raws li cov nplaum.
(2) Yog vim li cas rau stretching deformation ntawm nyias zaj duab xis
Lwm qhov tshwm sim pom tseeb ntawm kev hloov pauv ntawm txhuas plating feem ntau pom nyob rau hauv peb txheej sib xyaw, tshwj xeeb tshaj yog hauv PET / VMPET / PE cov qauv. Feem ntau, peb thawj zaug sib xyaw PET / VMPET. Thaum sib xyaw ua ke hauv cov txheej txheem no, cov txheej txheem txhuas feem ntau tsis xa mus. Cov txheej txheej txhuas tsuas yog hloov mus tom qab txheej thib peb ntawm PE yog sib xyaw. Los ntawm kev sim, peb pom tias thaum tev cov qauv peb-txheej sib xyaw, yog tias muaj qee qhov nro yog siv rau cov qauv (xws li kev ua kom nruj cov qauv), cov txheej txheem txhuas yuav tsis hloov. Thaum qhov nro raug tshem tawm, cov txheej txheej aluminium yuav hloov tam sim ntawd. Qhov no qhia tau hais tias qhov shrinkage deformation ntawm PE zaj duab xis ua rau muaj kev cuam tshuam zoo ib yam li cov kev ntxhov siab sab hauv tsim thaum lub sij hawm kho cov nplaum. Yog li ntawd, thaum cov khoom sib xyaw nrog cov qauv peb txheej, tensile deformation ntawm PE zaj duab xis yuav tsum raug txo kom tsawg li ntau tau los txo lossis tshem tawm qhov tshwm sim ntawm kev hloov pauv ntawm txhuas.
Qhov laj thawj tseem ceeb rau kev hloov pauv ntawm aluminium plating tseem yog zaj duab xis deformation, thiab qhov laj thawj thib ob yog cov nplaum. Nyob rau tib lub sijhawm, cov txheej txheem aluminium plated feem ntau ntshai dej, txawm tias cov dej ntws nkag mus rau hauv cov txheej txheem ntawm aluminium plated zaj duab xis, nws yuav ua rau delamination loj.
Post lub sij hawm: Oct-28-2023
