Qhov sib txawv ntawm cov ntawv galvanized thiab galvalume
Kub-dip galvanized ntawvyog hais txog ib daim ntawv hlau coated nrog ib txheej ntawm zinc rau ntawm qhov chaw, uas tau muab faib ua paj thiab unflowered. Galvanizing yog ib qho kev lag luam thiab siv tau zoo los tiv thaiv corrosion uas feem ntau siv. Kwv yees li ib nrab ntawm lub ntiaj teb zinc ntau lawm yog siv rau hauv cov txheej txheem no. Ib txheej ntawm cov khoom siv zinc yog sib npaug ntawm cov ntawv galvanized, uas ua lub luag haujlwm tiv thaiv anode rau cov khoom siv hauv paus. Qhov ntawd yog hais tias, kev hloov corrosion ntawm cov khoom siv zinc tiv thaiv kev siv cov khoom siv hauv paus. Tsuas yog thaum tag nrho cov zinc corroded tuaj yeem sab hauv puas. niam txiv khoom. Vim hais tias saum npoo ntawm cov hlau yog them nrog zinc txheej, nws thaiv atmospheric yaig, tiv thaiv txuas ntxiv corrosion ntawm lub substrate thiab ua kom lub neej kev pab cuam ntawm lub substrate. Tsis tas li ntawd, zinc muaj zog ntau dua li hlau, thiab nyob rau hauv cov ntaub ntawv ntawm corrosion, zinc txheej tuaj yeem raug txi los tiv thaiv cov hlau matrix.
Kub-dip galvanizing yog qhov feem ntau siv thiab ua haujlwm zoo rau kev tiv thaiv corrosion steel. Nyob rau hauv kev tsim kho kev lag luam, nws yog siv rau lub teeb steel keels, lub tsev panels, corrugated boards, dov shutter qhov rooj, thiab lwm yam nyob rau hauv ntau yam industrial thiab civil vaj tse; nyob rau hauv cov khoom siv hauv tsev thiab lub teeb kev lag luam, nws yog siv rau hauv lub plhaub thiab lub hauv paus phaj ntawm ntau yam khoom siv hauv tsev; galvanized steel phaj yog dav siv Siv hauv kev lag luam teeb, hluav taws xob, tsheb thiab kev tsim kho kev lag luam. Hauv kev lag luam tsheb, nws yog siv rau lub cev tsheb, lub plhaub sab nrauv, sab hauv vaj huam sib luag, hauv qab vaj huam sib luag, thiab lwm yam.
Lub ntsiab kom zoo dua ntawm kub-dip galvanized aluminium alloy txheej (cov txheej muaj 5% Al, 95% Zn, thiab cov kab ntawm cov ntsiab lus tsis tshua muaj hauv ntiaj teb) yog tias txheej txheej muaj cov yas zoo dua thiab adhesion, yog li cov corrosion kuj ua ntej thiab tom qab deformation tseem nyob. tsis hloov, thiab nws cov atmospheric tsis kam Cov yam ntxwv corrosion yog ntau dua li cov pa kub-dip galvanizing, thiab nws muaj cov txheej txheem zoo, uas tuaj yeem ua kom muaj kev sib raug zoo ntawm cov txheej txheej alloy thiab txheej ruaj khov rau lub sijhawm ntev. Qhov saum npoo ntawm daim ntawv galvanized yog zoo nkauj dua li ntawm cov ntawv galvanized. Nyob rau tib lub sijhawm, tus nqi ntawm cov ntawv galvanized yog siab dua li ntawm cov ntawv galvanized, thiab tus nqi ntawm cov paj me me zinc yog siab dua li cov paj zinc loj.
Qhov saum npoo ntawmgalvalume steel phajmuaj ib tug tshwj xeeb du, tiaj tus thiab gorgeous hnub qub paj, thiab lub hauv paus xim yog silver-dawb. Nws cov nyhuv tiv thaiv muaj zog dua thiab nws cov corrosion kuj zoo dua li cov khoom siv galvanized. Tag nrho cov qauv yog tsim los ntawm txhuas-hlau-silicon-zinc, tsim ib tug ntom quaternary siv lead ua. Cov siv lead ua no ua ib qho kev thaiv ntawm cov hlau phaj, yog li tiv thaiv corrosion yam tsis zoo los ntawm kev nkag mus. Corrosion kuj los ntawm cov txheej thaiv txheej tiv thaiv kev ua haujlwm ntawm txhuas thiab kev tiv thaiv kev tiv thaiv ntawm zinc. Thaum zinc muab kev tiv thaiv kev txi ntawm cov npoo npoo, khawb, thiab abraded qhov chaw ntawm txheej, aluminium tsim cov txheej txheem oxide insoluble los ua kom muaj kev tiv thaiv kev tiv thaiv.
