Nyob rau hauv ib puag ncig atmospheric zoo tib yam (hauv nroog / nyob deb nroog / kev lag luam), Q550NH weathering steel tau zoo dua ntev -lub sij hawm corrosion kuj; nyob rau hauv siab - av noo, ntug hiav txwv dej, los yog faus ib puag ncig, galvanized steel yog ntau txhim khu kev qha nyob rau hauv luv luv mus rau nruab nrab lub sij hawm.
1. Nyob rau hauv ib txwm muaj huab cua (tsis yog - ntug hiav txwv dej, tsis yog - huab cua hnyav)
qw 550n: Ua kom tuab, tus kheej- kho patina txheej. Corrosion tus nqi yog tsawg heev thiab ruaj khov rauxyoo lawm.
Galvanized hlau: Zinc txheej maj mam oxidizes thiab whitens; Tom qab cov zinc tau noj (feem ntau yog 5-15 xyoo), lub hauv paus hlau rusts sai heev.
Kev tshwm sim: Q550NH yog qhov corrosion ntau dua -resistant nyob rau hauv ntev
2. Nyob rau hauv ntug dej hiav txwv / ntsev-txoj kev ib puag ncig
qw 550n: Patina yooj yim puas los ntawm chloride ions; corrosion accelerates heev.
Galvanized hlau: Zinc muaj kev tiv thaiv zoo tiv thaiv ntsev; ua hauj lwm ruaj khov.
Kev tshwm sim: Galvanized hlau yog zoo dua
3. Nyob rau hauv siab -cov av noo, cua tsis zoo, los yog ib puag ncig ntub
qw 550n: Tsis tuaj yeem tsim patina ruaj khov, ua kom xeb ua haujlwm.
Galvanized hlau: Tseem muab kev tiv thaiv kev tiv thaiv ntev npaum li cov zinc txheej tseem nyob.
Kev tshwm sim: Galvanized hlau yog zoo dua
4. Nyob rau hauv faus / dej -immersed tej yam kev mob
qw 550n: Yuav luag tsis muaj corrosion kuj, zoo ib yam li cov hlau zoo tib yam.
Galvanized hlau: Tseem muaj qee yam kev tiv thaiv.
Kev tshwm sim: Galvanized steel yog zoo dua
5. Nyob rau hauv cov nqe lus ntawm kev pab cuam lub neej
Galvanized hlau: Lub neej zoo5-15 xyoonyob ntawm ib puag ncig.
qw 550n: Nyob rau hauv qhov chaw tsim nyog, tuaj yeem ncav cuag30-50 xyootsis pleev xim.
