Hauv kev ntim khoom noj, aluminium ntawv ci yog siv los ua cov hlau tsis muaj coated thiab ua ke nrog lwm cov ntaub ntawv. Bare aluminium foil yog siv los ua cov ntawv ci hauv tsev, cov ntaub ntawv ntim khoom (xws li chocolate) thiab cov tais. Feem ntau ntawm cov khoom ntim ntim cia siab rau cov ntawv txhuas hloov pauv ntawm cov ntawv ci, uas txhais tau hais tias cov khoom ntim tsis tuaj yeem sib cuag nrog lub ntim hauv cov ntawv ci nws tus kheej, tab sis nrog cov txheej txheej ntawm cov lacquer thiab yas ua cov txheej nruab nrab ntawm txheej. Cov txheej txheej no ua raws li cov txheej txheem tiv thaiv kom tsis txhob muaj ntsev ntau los yog acid corrosion ntawm cov zaub mov, thiab ua cov txheej txheem kub hnyiab kom ua tiav lub foob nruj ntawm pob. Cov txheej ntawm aluminium ntawv ci kuj tuaj yeem ua rau hauv ntim uas muaj cov ntawv lossis cov duab los qhia.
Txhuas yog cov hlau dawb-dawb uas yog nyob rau hauv tsev neeg boron ntawm cov tshuaj muaj pes tsawg leeg ntawm 13. Nws muaj ntau yam tseem ceeb:
∑ Nws qhov ntom ntom yog ib feem peb ntawm cov hlau, ua rau nws yog cov hlau hnyav.
Σ Lub zog nyob rau hauv daim ntawv hlau yog siab heev: thaum lub zog tawm los ntawm cov ntshiab txhuas yog 7-11MPa, lub zog ntawm txhuas alloys nyob ntawm 200 txog 600 MPa.
Σ Corrosion kuj vim "passivation": Aluminium oxide tsim ib txheej nyias ntawm cov hlau nto tiv thaiv oxidation ntxiv.
∑ Nws yog malleable thiab malleable ntawm chav tsev kub thiab yooj yim rau daim ntawv.
∑ Nws tsis yog magnetic tab sis ib tug zoo conductor ntawm tshav kub thiab hluav taws xob. Aluminium yog dav siv nyob rau hauv ntim nyob rau hauv daim ntawv ntawm txhuas ntawv ci, uas tsuas yog tshaj 6 mus rau 150 microns tuab (ib micron yog ib lab ntawm ib 'meter'). Cov khoom tseem ceeb ntawm txhuas ua cov khoom ntim tau sau tseg hauv Table 9.1. Ib qho ntawm feem ntau ...
Ib qho khoom tseem ceeb ntawm txhuas ua cov khoom ntim yog tias nws yog inert rau feem ntau cov hlau. Raws li tau hais ua ntej, thaum raug huab cua, aluminium tsim cov pob tshab oxide txheej uas tiv thaiv oxidation ntxiv. Ntxiv nrog rau kev tiv thaiv corrosion, aluminium yog tsis-absorbent, ua rau nws muaj kev cuam tshuam zoo rau cov pa roj thiab kua. Cov ntawv hnyav dua (loj dua 17 hli) tag nrho thaiv cov pa roj thiab kua. Thinner gauges tso cai rau ib co kis tau tus mob: piv txwv li, ib tug raug dej vapor kis tus nqi (WTVR) rau ib tug 9 hli tuab ntawv ci yog 0.3 g/m2 ib 24 teev (ntawm qhov kub thiab txias 38 degree, txheeb ze humidity 90% RH. ). Aluminium kuj tseem ruaj khov nyob rau hauv txias txias thiab tuaj yeem siv rau cov khoom noj khov. Nws yog resistant rau kub hauv qab 150 degree, ua rau nws haum rau ob lub tub yees thiab reheating ntawm zaub mov.
