Dab tsi yog qhov ntsuas kub ntawm yanman sandwich vaj huam sib luag? Sandwich vaj huam sib luag yog lub vaj huam sib luag sandwich ua los ntawm. Nws muab kev ua si tag nrho rau kev ua haujlwm ntawm cov khoom siv tseem ceeb, thiab muaj txiaj ntsig zoo hauv kev tiv thaiv hluav taws, rwb thaiv tsev thermal, lub suab nqus thiab suab rwb thaiv tsev.
1. Kev rwb thaiv tsev ntawm cov sandwich board nrog cov khoom tsis zoo yuav txo qis tom qab nqus dej. Nyob rau hauv cov xwm txheej ntawm ib puag ncig cov av noo, cov dej nqus tau yooj yim kom khov, uas rhuav tshem cov qauv ntawm cov khoom siv thermal rwb thaiv tsev, yog li txo cov compressive zog thiab thermal rwb thaiv tsev kev ua tau zoo ntawm lub phaj.
2. Cov qauv molecular ntawm cov khoom siv sandwich vaj huam sib luag yog ruaj khov, nws tsis muaj qhov khoob, thiab daws cov teeb meem ntawm cov dej xau, dej seepage thiab dew condensation.
3. Tom qab siv tau ntev, lub vaj huam sib luag sandwich yuav tsis muaj hnub nyoog, decompose thiab tsim cov khoom tsis zoo. Nws cov cuab yeej tshuaj yog ruaj khov, thiab nws yuav tsis degrade vim dej nqus thiab corrosion, uas yuav txo nws cov kev ua tau zoo. Nws tseem tuaj yeem tswj xyuas kev ua haujlwm zoo nyob rau hauv ib puag ncig kub.
Lub vaj huam sib luag sandwich txais cov txheej txheem tsim khoom ntawm cov kab sib dhos, thiab nws cov kev ua tau zoo ntawm cov dej tsis zoo kov yeej qhov tsis zoo ntawm kev nqus dej yooj yim thiab deliquescence, thiab ua kom muaj txiaj ntsig zoo rau kev pab cuam lub neej ntawm cov khoom raws li lub cev.
