Galvanized steel kav dej yog cov kav dej uas ua los ntawm cov hlau, thiab coated nrog zinc tiv thaiv kom tsis txhob xeb. Qhov no feem ntau yog ua los ntawm ntsaws cov kav dej hauv tus dab roj hmab zinc. ... Lub sijhawm dhau mus, cov kav dej galvanized steel pib xeb lossis xeb ntawm lub sab hauv, uas ua rau cov dej tsis muaj zog thiab txwv cov dej ntws.
Kub-dip galvanizing yog txheej txheem ntawm kev nkag mus rau hauv cov hlau los yog hlau hauv da dej ntawm molten zinc los tsim cov tshuaj tiv thaiv corrosion, ntau txheej txheej ntawm zinc-hlau alloy thiab zinc hlau. Thaum cov hlau txhuam rau hauv zinc, ib qho tshuaj tiv thaiv nws yog xim hlau tshwm sim ntawm cov hlau hauv cov hlau thiab cov hlau tsis xeb.
Galvanized steel tuaj yeem ua rau cov kav dej loj lossis cov khoom siv tubing - ib qho uas tiv tau xeb los ntawm kev cuam tshuam nrog dej lossis cov khoom. Nws tau siv rau kev xa dej los yog cov kav dej muaj zog rau kev siv sab nraum zoov.
Cov yeeb nkab galvanized tau raug coated nrog txheej txheej ntawm zinc. Cov zinc muab qhov thaiv kom tsis txhob xeb kom lub yeeb nkab yuav raug rau cov khoom siv sab nraum zoov ib puag ncig. Qhov kev thaiv teeb meem ua pov thawj zoo sib npaug tiv thaiv kev puas tsuaj los ntawm cov av noo.
Hom yeeb nkab no tau siv rau hauv ntau qhov kev teeb tsa. Ua ntej xyoo 1970, cov hlau galvanized tau siv rau cov kav xa dej hauv kev tsim kho. Nws yog siv rau hauv cov ntawv thov sab nraum zoov qhov twg lub zog ntawm cov hlau yog xav tau, xws li lub laj kab xov xwm thiab tus ntsia, ntsia hlau thiab ua kev tiv thaiv kev tsheb nqaj hlau.
