Cov txheej txheem kev cai rau cov ntaub thaiv dej tsis zoo feem ntau suav nrog kev ua haujlwm ntawm cov khoom siv, kev tsim tshwj xeeb, cov qauv ntsuas, thiab cov xwm txheej tsim nyog los xyuas kom meej tias lawv qhov kev ua tau zoo nyob ntev - nyob rau hauv qhov chaw ntub dej.
1. Cov khoom yuav tsum tau ua
Lub zog thiab Durability: Cov laug cam yuav tsum muaj lub zog txaus compressive thiab flexural zog los tiv thaiv kev thauj khoom thaum siv thiab siv, tiv thaiv deformation lossis tawg.
Low Water Absorption: High-quality waterproof backing boards should use a dense closed-cell structure (such as XPS extruded polystyrene board), with extremely low water absorption, effectively blocking water vapor penetration.
Kev Tiv Thaiv Ib puag ncig: Lawv yuav tsum tsis muaj formaldehyde thiab cov hlau hnyav hnyav (xws li txhuas, cadmium, thiab mercury), ua raws li cov qauv hauv tsev kom muaj kev noj qab haus huv.
2. Kev tsim tshwj xeeb thiab cov qauv
Substrate Requirements: Qhov deg flatness sib txawv ntawm lub substrate yuav tsum tsis txhob ntau tshaj 4mm / 2m, nws yuav tsum ruaj tsis muaj hollow cheeb tsam los yog xoob xuab zeb, thiab cov ntsiab lus noo noo yuav tsum tau raws li qhov kev tsim kho.
Cov txheej txheem kev teeb tsa: Kev sib koom ua ke dav tsawg dua lossis sib npaug li 3 hli, ntim nrog cov sealant sib xws; Fixture spacing: Kab rov tav Tsawg dua los yog sib npaug rau 300mm, Ntsig Tsawg dua lossis sib npaug li 400mm, nrug ntawm ntug Ntau dua lossis sib npaug li 20mm; Lub kaum sab xis thiab cov yeeb nkab cheeb tsam yuav tsum tau txiav- mus rau - haum haum thiab muaj zog tiv thaiv dej (xws li, siv daim kab xev tsis muaj dej).
Kev lees paub zoo: Kev ntsuas dej tsis zoo yog kuaj xyuas los ntawm kev ntsuas dej nruj. Ib qho dej ntawm 20-30mm yuav tsum tau khaws cia rau 24-48 teev yam tsis muaj qhov xau yuav raug txiav txim siab 合格 (tsim nyog).
