Nyob rau hauv cov xwm txheej zoo tagnrho (cov voj voog ntub-qhuav, tsis tu ncua, huab cua huv / me me), S355J2W cladding yuav siv sijhawm li 1.5-3 xyoos los tsim kom muaj kev ruaj khov, ntom ntom, tiv thaiv patina (cov xim sib sib zog nqus xim av, tsis muaj xeb-tawm xeb).
Patina formation ncua sij hawm (natural sab nraum raug)
Kauj Ruam 1: Pib xeb (0-3 lub hlis)
Nto tig daj → txiv kab ntxwv → ci liab
xoob, powdery xeb; tej zaum yuav rub tawm ntawm tes
Qee zaus xeb streaks (ib txwm)
Kauj Ruam 2: Hloov pauv patina (4-12 lub hlis)
Xim tob mus rau xim av liab → tsaus xim av
Rust yuav nruj dua, tsawg dua powdery
Tsawg streaks; sib npaug ntau dua
Theem 3: Stable mature patina (1.5-3 xyoos)
Xim kawg: sib sib zog nqus chocolate / xim av-violet
Nthuav, tawv, zoo-adhered txheej
Tsis muaj rub-tawm xeb; tiv thaiv tag nrho
Corrosion tus nqi poob rau zero
Ib puag ncig cuam tshuam li cas nrawm
Ceev tshaj (1-2 xyoos): Kev lag luam nruab nrab / huab cua hauv nroog (mob SO₂), nquag nag + hnub mus ncig
Ib txwm (1.5-3 xyoos): Huv suburban / nyob deb nroog, qhov cua zoo
Tsawg tshaj (3-6 xyoos +): Cov suab puam qhuav heev, qhov ntxoov ntxoo tsis tu ncua, lossis thaj chaw muaj kuab paug nyob deb nroog
Accelerated patina (kev kho tus kheej)
Thov ua lag luam weathering steel accelerant:2–4 lub hliskom ruaj khov patina
Txau + ntub-qhuav cycling: tuaj yeem ncav cuag ~ 80% stabilization hauv4–6 lub hlis
