Kub-dip galvanizing tseem yog lub hauv paus. Siv rau ASTM A123 lossis ISO 1461, ib txwm 85-100 µm zinc txheej muab kev tiv thaiv cathodic uas txuas ntxiv txawm tias tom qab kev puas tsuaj me me. Kev pabcuam- lub neej cov lus tau txais los ntawm qhov ntev - lub sij hawm atmospheric exposure (American Galvanizers Association thiab Nordic Galvanizers data) project 20–40 xyoo rau thawj txij nkawm hauv C4 tej yam kev mob thiab kwv yees li 10–20 xyoo hauv C5. Qhov kev ua tau zoo no yog qhov tshwj xeeb tshaj plaws rau cov av-cov khoom sib txuas xws li laj kab ncej thiab cov hauv paus hauv paus, qhov uas cov zinc txia tseem tiv thaiv cov hlau tsis huv.
Rau kev txhoj puab heev micro- huab cua- ntug dej hiav txwv tsev cog khoom lossis ammonia- cov khoom noj muaj nplua nuj -zinc-aluminium- magnesium alloys xws li Magnelis® (ArcelorMittal) tau pom kwv yees kwv yees li peb zaug ntawm corrosion kuj ntawm 6} sab nraum zoov ua liaj ua teb kub Kev ntsuam xyuas Gravimetric hauv Fab Kis thiab Dutch cov tsev ua liaj ua teb tau pom tias muaj kev poob qis hauv cov dej noo thiab NH₄⁺ raug. Ib yam li ntawd, 55% aluminium-zinc coatings (Galvalume{11}}type) muab 3-6 npaug ntawm lub neej barrier ntawm zinc ntshiab hauv ntsev- tshuaj tsuag thiab teb sib piv (ASTM B117 thiab ntau- xyoo ru tsev raug). Cov tshuab hlau no tshwj xeeb tshaj yog haum rau qhov siab - av noo, siab - teeb pom kev zoo ntawm cov iav niaj hnub thiab cov alkaline cua ntawm cov tsiaj nyeg hnyav.
Organic thiab hmoov topcoats ua tiav daim duab thaum muaj kev zoo nkauj lossis tshuaj lom neeg ntxiv. Lub tshuab duplex-kub-dip zinc ntxiv rau epoxy-nplua nuj primer thiab polyurethane lossis polyester tiav- niaj hnub txuas kev ncaj ncees mus rau 20-30 xyoo. Cov hmoov txheej ntawm 60-120 µm thickness ua tau zoo sib piv nrog rau xoom hnyav emissions thiab zoo sib xws, ua rau lawv siv tau rau cov khoom siv tsheb laij teb thiab cov khoom vaj tse. Thermal-txhaj tshuaj zinc lossis ceramic overlays tseem yog cov kev daws teeb meem rau siab -abrasion abrasion xws li plowshares.
Dab tsi tshwm sim los ntawm ntau- xyoo kev soj ntsuam pom thiab huab hwm coj- kev ntsuas poob ntawm European cov khoom noj mis nyuj thiab Midwestern US tsev cog khoom pawg yog cov qauv zoo ib yam: chav kuaj ntsev- tshuaj tsuag qeb feem ntau understate tiag - ntiaj teb kev ua tau zoo los ntawm 30–50 % thaum cov txheej txheem raug phim rau micro{8} climate. ISO 12944 pawg muab lub moj khaum; Chaw tsim tshuaj paus cov ntaub ntawv los ntawm ArcelorMittal thiab ywj siab galvanizing koom haum muab cov calibration.
Ib tug pragmatic xaiv matrix yog li ntawd pib nrog tus tseem ceeb stressor. Txujkub-dip galvanizedcoils (Z200-Z275) txaus rau sab hauv tsev cog khoom.High- zinc lossis alloy coatingsua qhov kev xaiv tsim nyog rau ntug hiav txwv lossis ammonia-cov tsiaj txhu hnyav. Duplex systems pom zoo rau lawv cov nqi pib siab dua qhov twg kev saib xyuas kev siv tsuas yog txwv lossis sijhawm poob qis. Qhov tshwm sim ntawm lub neej- voj voog lej feem ntau txo tag nrho cov tswv cuab tus nqi los ntawm 25–30 % nyob rau ob xyoo caum, feem ntau los ntawm kev zam re- txheej thiab kho cov qauv.
Thaum qhia txog cov hlau rau lub tsev cog khoom txuas ntxiv los yog cov tsiaj nyeg complex, pib nrog kev ntsuam xyuas qhov tseeb es tsis yog daim ntawv khoom lag luam. Sino-Galvanized tuaj yeem muab taukev cai ua liaj ua teb coilsthiabtiv thaiv-corrosion stripmatched rau cov chav kawm raug raug ntawm koj qhov chaw, ua ke nrog cov lus pom zoo txheej hauv av tib cov ntaub ntawv uas qhia cov neeg tsim khoom nyob sab Europe thiab North American.
Cov peev txheej: ISO 12944 thiab ISO 9223 corrosivity pawg; American Galvanizers Association thiab Nordic Galvanizers kev pabcuam- lub neej rooj; ArcelorMittal Magnelis® sab nraum zoov ua liaj ua teb thiab kuaj ammonia raug; ASTM B117 ntsev-Txoj kev sib piv rau 55% Al-Zn txheej; ntau- xyoo kev tshuaj xyuas ntawm European cov khoom noj siv mis thiab US Midwest tsev cog khoom.
