Niaj hnub no, cov kav dej kub-dip galvanized steel kav yog ib hom kev tiv thaiv hluav taws kub, ua si lub luag haujlwm tsis tuaj yeem hloov pauv hauv kev lag luam hluav taws kub. Vim li cas ho tsis tuaj yeem hloov cov kav dej kub-dip galvanized los ntawm cov kav hlau uas pheej yig dua lossis cov kav dej txias-galvanized?
Kub-dip galvanizing tau tsim nyob rau hauv nruab nrab-18 xyoo pua, hloov zuj zus los ntawm cov txheej txheem kub-dip tinning, nrog keeb kwm ntawm ntau tshaj 300 xyoo. Txog niaj hnub no, kub-dip galvanizing tseem yog siv dav thiab ua haujlwm zoo rau kev tiv thaiv corrosion steel.
Kub-dip galvanized kav: Lawv koom nrog cov tshuaj tiv thaiv ntawm cov hlau molten thiab cov hlau matrix los tsim cov txheej txheem alloy, yog li kev sib koom ua ke ntawm matrix thiab txheej. Cov txheej txheem pib nrog pickling cov kav hlau kom tshem tawm cov hlau oxide ntawm lawv qhov chaw. Tom qab pickling, cov kav dej yog ntxuav hauv ib da dej ntawm ammonium chloride los yog zinc chloride aqueous tov, los yog tov tov ntawm ob qho tib si. Tom qab ntawd lawv muab tso rau hauv ib da dej kub-dip galvanizing. Kub-dip galvanizing muaj qhov zoo xws li txheej txheej, muaj zog adhesion, thiab lub neej ua haujlwm ntev. Hauv cov cheeb tsam sab qaum teb, feem ntau ntawm cov txheej txheem tau txais cov txheej txheem ntawm ncaj qha dov galvanized strips los tsim cov kav dej thiab ntxiv zinc.
Kub-dip galvanized steel kav: Complex lub cev thiab tshuaj tiv thaiv tshwm sim ntawm cov yeeb nkab steel matrix thiab molten plating tov, tsim ib tug corrosion-resistant thiab structurally ntom zinc-hlau alloy txheej. Cov txheej txheej alloy no sib txuas ua ke nrog cov ntshiab zinc txheej thiab cov yeeb nkab steel matrix, uas ua rau muaj zog corrosion kuj.
Txhawm rau txhim kho corrosion kuj ntawm cov kav hlau, galvanizing yog siv. Galvanized steel kav yog categorized rau hauv kub-dip galvanized thiab electro-galvanized hom. Cov kav dej kub-dip galvanized muaj cov txheej tuab dua, thaum cov kav dej electro-galvanized muaj cov nqi qis dua tab sis qhov chaw du. Blow-oxygen welding pipes: Siv rau steelmaking tshuab-oxygen daim ntaub ntawv, lawv feem ntau ntiav me me-inch welded steel kav hauv yim qhov ntau thiab tsawg xws li 3/8 txog 2 ntiv tes. Ua los ntawm steel strips ntawm qib 08, 10, 15, 20, lossis 195-Q235, qee qhov tau txais kev kho aluminizing zoo rau kev tiv thaiv corrosion.
Txheej txheem ntau lawm:
Galvanized strip → Uncoiling → Stretching → Pipe dov → Vuam → Tshem tawm → Passivation thiab yaug → Zinc replenishment → Shaping → Marking → Txiav → Packing → Qhuav → Weighing.
