1. Vim li cas nws thiaj li ua tau
Corrosion tsis kam phim cov thawv ntim khoom xav tau: Spa {- h tsim cov patina, tawm los nag, ntsev tsuag (rau cov av nplaum) thiab av noo. Tsis zoo li cov pa roj carbon hlau (xav tau nquag pleev xim), nws txiav ntev - sij hawm tu.
Txias - kev ua kom muaj kev ua tau zoo: Txias {- sib sau (} {} {{}} tseem ceeb rau packment durability.
Tuab tau: Thawv sab panels siv nyias hlau (1.5-3 hli), thiab spa {}
2. Kev txiav txim siab tseem ceeb
Txhim kho qhov mob cold - kev sib sau: Rau nyias spa - h (1.5-3 hli), khaws qhov tsawg tshaj plaws khoov vojvoog ntau dua los yog sib npaug rau 1.5 × tuab tuab kom tsis txhob tawg; Siv cov dov qeeb - ua nrawm (10-15 m / min) kom tiv thaiv brittleness.
Kev Tiv Thaiv Nto: Ua ntej Pata ntaub ntawv (1-3 xyoos), thov tshem tawm cov neeg tsis muaj kev tiv thaiv kom tsis txhob "flash xeb" thaum xa khoom.
Ntsib Cov Qauv Txheej Txheem: Tsim cov vaj huam sib luag raws li corrugated qauv (rau rigidity) kom tiv thaiv stiring loads (piv txwv li, e71t-8-w2 xaim) thaum sib dhos.
