Pinhole yog qhov ntsuas tseem ceeb tshaj plaws, tshwj xeeb tshaj yog rau {{0}}}02, 0.015 micron aluminium ntawv ci, vim aluminium ntawv ci yog cov khoom ntim tseem ceeb , tsis muaj lossis me me txheej txheej, nws yuav tsum muaj tsis muaj pinhole. Thaum 0.009, 0.007 micron aluminium foil feem ntau yog siv los ua ib qho ntawm cov txheej txheem sib xyaw, cov pinholes yog tswj ntawm 30 / m2, aluminium foil plays lub luag haujlwm tseem ceeb sealing, thaum cov txheej txheem sib xyaw ua lub luag haujlwm txhawb nqa. Muaj cov kev xav hais tias pinhole txoj kab uas hla tsawg dua 0.005mm yuav tsis yog huab cua permeability, tab sis kev xyaum tau ua pov thawj tias yog lub pinhole yuav yog huab cua permeability. Nws tsuas yog ib qho teeb meem ntawm qhov loj ntawm huab cua permeability tus nqi.
| Alloy | 8021 (8000 hli) |
| Botenya | 0.01limilimithara - 6 limilimithara |
| Bophara | 80 limilimithara - 2650 limilimithara |
| Bolele | 120mm -10000 hli |
| Khalefo | O, H12, H14, H16, H18, H22, H24, H26 joalo-joalo. |
| Mofani | GNEE Aluminium |
Tsis muaj pinhole aluminium ntawv tuaj yeem suav tias yog huab cua permeability ntawm xoom, ib square meter 1 φ 0.3mm pinhole suav rau tag nrho thaj tsam ntawm cuaj puas lab, 30 pinholes suav rau tag nrho cheeb tsam ntawm peb millionths, uas yog, kev siv aluminium foil composite cua permeability thiab dej permeability tshaj cov khoom siv raw kom txo tau ntau tshaj li ib lab npaug ntawm txoj kab uas hla ntawm pinhole feem ntau yog nyob rau hauv 0.05mm { {6}}.3mm los yog li ntawd, yog li nws tuaj yeem txiav txim siab tias pes tsawg tus pinholes thiab permeability ntawm kev sib raug zoo. Qhov cheeb tsam ntawm lub pinhole yog proportional rau lub square ntawm txoj kab uas hla, yog li lub pinhole ntawm 0.03mm yog 100 npaug tshaj qhov pinhole ntawm 0.3mm. Nws tuaj yeem hais tias aluminium ntawv ci thiab tsis muaj txhuas ntawv ci yog cov qib sib txawv ntawm cov ntim, qhov sib txawv ntawm huab cua permeability thiab dej permeability yog ntau tshaj li ib lab lub sij hawm, thiab lub teeb thaiv cov khoom ntawm txhuas ntawv ci tuaj yeem piav qhia zoo ib yam.
