Aluminium foils rau kev siv sib txawv muaj qhov sib txawv.
Class 1 aluminium foil
Pinholes yog qhov taw qhia tseem ceeb tshaj plaws, tshwj xeeb tshaj yog rau {{0}}.02 thiab 0.{{10}}15 micron aluminium foil. Txij li cov ntawv txhuas txhuas yog cov khoom ntim tseem ceeb thiab tsis muaj cov txheej txheem sib xyaw ua ke, nws yuav tsum tsis muaj pinholes. Lub 0.009 thiab 0.007 micron aluminium foil feem ntau yog siv los ua ib qho ntawm cov txheej txheem sib xyaw, thiab cov pinholes yog tswj ntawm 30/m2 . Aluminium foil plays lub luag haujlwm tseem ceeb ntawm kev sib khi, thiab cov txheej txheem sib xyaw ua lub luag haujlwm txhawb nqa. Muaj ib txoj kev xav tias yog lub pinhole txoj kab uas hla tsawg dua 0.005mm, nws yuav tsis ua pa thiab dej-permeable, tab sis kev xyaum tau ua pov thawj tias yog tias lub pinhole txoj kab uas hla tsawg dua 0.005mm, nws yuav ua pa thiab dej-permeable. Nws tsuas yog ib qho teeb meem ntawm breathability thiab dej permeability. Pinhole-dawb aluminium ntawv ci tuaj yeem suav tias yog xoom huab cua permeability thiab dej permeability. Ib tug φ0.3mm pinhole ib square meter account rau 9/100 lab ntawm tag nrho cov cheeb tsam, thiab 30 pinholes account rau 3/100 lab ntawm tag nrho cov cheeb tsam. Ntawd yog, siv huab cua thiab dej permeability ntawm txhuas ntawv ci tom qab lamination yog ntau tshaj li ib lab lub sij hawm qis dua li ntawm cov ntaub ntawv raw. Feem ntau, txoj kab uas hla ntawm pinholes yog hais txog 0.05mm -0.3mm. Yog li ntawd, kev sib raug zoo ntawm tus naj npawb ntawm pinholes thiab huab cua permeability tuaj yeem txiav txim siab. Qhov chaw ntawm lub pinhole yog proportional rau lub square ntawm txoj kab uas hla, yog li thaj tsam ntawm ib tug 0.03mm pinhole yog 100 lub sij hawm phem tshaj li ntawm 0.3 hli pinhole. Nws tuaj yeem hais tias ntim nrog aluminium ntawv ci thiab tsis muaj aluminium ntawv ci yog txawv qib ntawm ntim. Qhov sib txawv ntawm huab cua thiab dej permeability yog ntau tshaj li ib lab lub sij hawm. Lub teeb-shielding khoom ntawm txhuas ntawv ci kuj tuaj yeem piav qhia zoo ib yam. Cov lus piav qhia saum toj no yog tsim nyog rau qhov tseem ceeb ntawm kev txheeb cais. Vim tias qhov tsis sib xws ntawm cov pinholes hauv cov ntim tshwj xeeb, piv txwv li: yog tias muaj lub pinhole hauv pob 10mm * 10mm, nws cov nyhuv sealing tsuas yog nce los ntawm 1000-10000 zaug.
Hom II aluminium ntawv ci
Ib qho chaw huv thiab zoo ib yam yog qhov tseem ceeb tshaj plaws rau cov ntawv txhuas no. Raws li kev luam ntawv tau ua kom zoo dua ntxiv, qhov yuav tsum tau ua rau hom ntawv txhuas no kuj tau nce ntxiv. Qhov ci ntsa iab ntawm qhov chaw yuav tsum yog ± 2 (siv Minolta colorimeter L tus nqi), thiab yuav tsum tsis txhob muaj cov kab vibration, kab, lossis qhov kaj. Cov hniav zoo nkauj yooj yim raug hloov los ntawm lub tshuab nqus tsev aluminized. Txawm li cas los xij, muaj tsawg heev aluminium foils rau qhov tseeb thib ob siv.
Class III aluminium ntawv ci
Qhov thib peb ntawm aluminium ntawv ci yog siv lub ntsiab ntawm aluminium ntawv ci tam sim no, uas yuav tsum tau muab ob qho tib si sealing thiab kho kom zoo nkauj. Cov ntawv txhuas txhuas feem ntau yog siv rau kev ya raws-pov thawj, shading, thiab kho kom zoo nkauj. Hom ntawv txhuas no feem ntau yog sib xyaw nrog cov ntawv, nrog rau cov ntawv txhuas txhuas sab nraud lossis hauv qab txheej pob tshab. Cov xim hlau nplaum ntawm cov ntawv ci txhuas yog cov cim ntawm hom ntim no. Raws li tau hais ua ntej, lub teeb-shielding thiab noo-pov thawj cov khoom ntawm txhuas ntawv ci kuj tuaj yeem txhim kho los ntawm ntau qhov kev txiav txim ntawm qhov loj rau hom ntim no. Tab sis cov dej tsis kam thiab lub teeb-shielding zog ntawm no aluminium ntawv ci tsis yog qhov tseem ceeb tshaj plaws ntsuas. Yog li ntawd, lub thickness ntawm txhuas ntawv ci yuav thinner, tam sim no lub thinnest yog 0.006mm. Raws li lub thickness txo, pinholes nce. Tus naj npawb ntawm pinholes ntawm 0.006mm tuaj yeem ncav cuag 2000/m2. Muab xam raws li tus pinhole txoj kab uas hla ntawm 0.1 hli, tag nrho cheeb tsam yog 20m m2, accounting rau ob puas txhiab ntawm tag nrho cov cheeb tsam. Txawm hais tias nws nce mus txog 20, 000 pinholes / m2, thaj tsam pinhole tsuas yog suav rau 2/10,000. Yog li ntawd, kom deb li deb ntawm aluminium foil composite txheej muaj kev txhawj xeeb, huab cua permeability, dej permeability thiab lub teeb transmittance tsawg kawg yog 10,000 npaug qis dua qhov ntim tsis muaj txhuas ntawv ci. Qhov no yog txaus rau ntim uas tsis xav tau heev. Qhov phom sij ntawm pinholes feem ntau yog tshwm sim los ntawm cov kua nplaum nkag thaum sib xyaw.
