ISO 12944 (2018 ib tsab) muab cov khoom lag luam zoo li no hauv corrosivity qeb C2 lossis C3. C2 npog qhov tsis muaj cua sov sab hauv nrog ib ntus condensation; C3 npog hauv nroog lossis cov chaw ua lag luam me me nrog cov sulfur dioxide nruab nrab. Kev ntsuas thaj tsam luam tawm los ntawm Nordic Galvanizers thiab Galvanizers Association ntawm Australia qhia tias cov pa roj carbon monoxide - steel nto hauv C3 poob roughly 25-50 µm ntawm thickness hauv thawj xyoo. Thaum cov nplai zeb raug ua txhaum cai, kev nce qib pitting ntawm cov pob qij txha nrawm qhov poob.
Factory- siv kev tiv thaiv pib nrog kub nruam-dip galvanizing. Ib txheej zinc txheej ntawm 70-150 µm (xws li Z275 lossis hnyav dua) ua haujlwm raws li ob qho tib si thaiv thiab kev txi anode. Cov ntaub ntawv muab tso ua ke raws li EN ISO 1461 qhia tau hais tias 85 µm nruab nrab txheej ntawm cov hlau tuab dua 6 hli xa ntau tshaj 40 xyoo rau kev kho thawj zaug hauv C3 thiab zoo tshaj 100 xyoo hauv C2. Rau cov tswv cuab uas yuav nyob twj ywm, ib lub tshuab duplex-galvanizing ua raws li epoxy primer thiab polyurethane topcoat tom qab Sa 2½ moj tej tawg tu-ntau ntxiv durability. Cov ntaub ntawv nyob sab Europe logistics halls siv qhov kev sib xyaw ua ke no tau sau tseg 15-25 xyoo ntawm kev pabcuam nrog tsuas yog kov me me xwb- nce, txiav cov nqi kho lub neej los ntawm 40–60 % piv rau pleev xim rau -tsuas yog cov hlau me me.
Ntawm qhov chaw qhov tseem ceeb yog khaws cia ntawm lub Hoobkas tiav. Txiav ntug thiab qhov chaw vuam yuav tsum tau kho tam sim ntawd nrog zinc- cov xim nplua nuj los yog cov tshuaj tsuag cua sov kom rov qab ua cov txheej txheem kev txi. Hauv siab -cov tsev khaws khoom Esxias cov av noo, microclimate saib xyuas ntawm lub ru tsev qhov chaw thiab sab qaum teb-fab phab ntsa txheeb xyuas cov hnab ntim khoom; cov cheeb tsam no tau txais ib lub tsho stripe ntxiv ua ntej cladding raug ntsia. Periodic qhuav-zaj duab xis-thickness checks txhua ob mus rau peb xyoos, siv cov ntsuas ntsuas ntsuas, kuaj pom thinning ntev ua ntej lub peev xwm ntawm cov khoom cuam tshuam.
Thaum cov zinc txheej tau raug teev tseg thiab tiv thaiv los ntawm erection, kev pab cuam lub neej niaj hnub tshaj qhov tsim lub neej ntawm lub tsev nws tus kheej. Cov ntaub ntawv kev lag luam yog ncaj nraim: tus nqi nce ntxiv ntawm cov galvanizing kom zoo yog rov qab tau ntau zaus dhau los ntawm kev zam kev poob qis thiab hloov seem.
Qhiakub-dip galvanized steel kaujnrog cov ntaub ntawv pov thawj txheej loj rau thawj thav duab, los yogpre-painted galvanized kaujqhov twg ob qho tib si corrosion kuj thiab architectural tiav yuav tsum tau. Ru tsev thiab phab ntsa cladding tuaj yeem ua tiav nrogtrapezoidal ru tsev ntawvua los ntawm tib lub substrate tiv thaiv. Hu rau peb pab pawg kws tshaj lij rau txheej txheej - cov kev suav loj uas haum rau koj pawg corrosivity hauv zos thiab xav tau lub neej ua haujlwm.
