Galvalume steel nplooj ntawv nrog 55% txhuas-zinc alloy txheej muaj superior corrosion kuj piv rau galvanized steel los xij ntawm tib lub thickness thaum ob tog raug rau tib qhov chaw. Lub galvanized steel phaj nrog 55% aluminium-zinc alloy txheej tsis tsuas yog muaj kev tiv thaiv corrosion zoo, tab sis kuj yog cov khoom siv xim coated muaj qhov zoo heev adhesion thiab yooj.
Qhov sib txawv ntawm cov ntawv galvanized thiabaluminium-zinc nplooj ntawvfeem ntau nyob rau hauv qhov sib txawv ntawm txheej. Ib txheej ntawm cov khoom siv zinc yog sib npaug ntawm qhov chawgalvanized ntawv, uas plays lub luag haujlwm tiv thaiv anode rau cov khoom siv hauv paus. Hauv lwm lo lus, cov khoom siv zinc muab lwm txoj kev tiv thaiv corrosion. Thaum siv cov khoom siv hauv paus, tsuas yog thaum tag nrho cov zinc tau corroded tuaj yeem cov khoom siv hauv paus raug mob.
Cov txheej txheej ntawm galvalume phaj yog tsim los ntawm 55% txhuas, 43.5% zinc thiab lwm yam khoom me me. Microscopically, qhov saum npoo ntawm galvanized zinc txheej muaj cov qauv honeycomb, thiab "honeycomb" tsim los ntawm txhuas muaj zinc. Nyob rau hauv cov ntaub ntawv no, txawm hais tias lub galvanized txheej kuj plays lub luag hauj lwm ntawm anode tiv thaiv, nyob rau hauv ib tes vim yog txo nyob rau hauv zinc cov ntsiab lus thiab ntawm qhov tod tes, vim hais tias cov zinc yog qhwv nyob rau hauv aluminium thiab tsis yooj yim electrolyzed, lub luag hauj lwm ntawm anode. kev tiv thaiv yog txo qis heev. Yog li ntawd, ib zaug aluminized Thaum lub phaj zinc raug txiav, nws yuav xeb sai sai thaum cov npoo txiav tsis muaj kev tiv thaiv. Yog li ntawd, lub phaj galvanized yuav tsum tau txiav kom tsawg li sai tau. Thaum txiav, cov xim pleev xim los yog cov xim zinc nplua nuj yuav tsum tau siv los tiv thaiv ntug ua ntej nws tuaj yeem siv tau. Lub neej kev pabcuam ntawm cov panels txuas ntxiv.
