Galvanized steel sheet duct khoom nthuav tawm ntau qhov sib txawv ntawm cov khoom. Nyob rau hauv cov nqe lus ntawm corrosion kuj, nws deb tshaj li cov ntawv hlau zoo tib yam. Cov zinc txheej tsim ib zaj duab xis nyias ntawm cov zinc carbonate hauv huab cua; this film has a dense structure and is poorly soluble in water, further preventing the continued oxidation of the internal metal. Qhov no ua rau cov kav dej muaj kev pabcuam ntev dua thaum thauj cov huab cua zoo ib yam lossis hauv thaj chaw muaj kev lag luam uas muaj cov av qeeg thiab cov pa roj me me.
Galvanized steel ntawv ua tiav qhov sib npaug ntawm cov neeg kho tshuab thiab cov khoom ua haujlwm. Nws lub hauv paus yog cov ntawv hlau nrog qee lub zog thiab kev nruj, kom ntseeg tau tias cov kav dej, tom qab ua rau hauv cov duab plaub lossis voj voog, tuaj yeem tiv taus qee qhov kev ntxhov siab sab hauv thiab sab nraud, tswj kev ruaj ntseg thiab tiv thaiv deformation. Cov txheej txheej galvanized muaj qee qhov ductility, tiv thaiv loj - thaj tsam tawg lossis tev thaum khoov, seaming, thiab vuam txheej txheem, kom ntseeg tau qhov kev ncaj ncees ntawm cov txheej txheem tiv thaiv ntawm cov kav dej tiav.
Cov khoom saum npoo kuj yog qhov tseem ceeb. Lub npoo du ntawm galvanized steel los xij thiab cov zinc txheej zoo crystals coj ob qho txiaj ntsig ncaj qha: ua ntej, cov dej ntws tawm hauv cov kav dej yog qhov me me, uas yog qhov zoo rau kev thauj mus los ntawm huab cua thiab tuaj yeem txo lub zog noj ntawm lub cev mus rau qee yam; Thib ob, lub ntsej muag du tsis yooj yim sau cov plua plav, ua kom yooj yim los ntxuav thiab tswj txhua hnub, uas pab tswj cov huab cua zoo ntawm qhov cua.
