Galvanized steel ntawv yog coated nrog ib txheej hlau zinc rau saum npoo ntawm cov ntawv hlau los tiv thaiv corrosion thiab txuas nws lub neej kev pab cuam. Hom zinc-coated steel ntawv no yog hu ua galvanized ntawv.
Raws li kev tsim khoom thiab kev ua haujlwm, nws tuaj yeem muab faib ua pawg hauv qab no:
① Kub-dip galvanized steel ntawv. Cov ntawv nyias nyias yog muab tso rau hauv lub tank zinc molten kom ua rau nyias txheej ntawm zinc adhere rau nws qhov chaw. Nws yog tsuas yog tsim los ntawm cov txheej txheem galvanizing tas li, uas yog, cov ntawv dov steel yog txuas ntxiv mus rau hauv lub molten zinc plating tank los ua ib daim ntawv hlau galvanized;
② Alloyed galvanized steel ntawv. Hom ntawv hlau no kuj yog ua los ntawm kub dip, tab sis tom qab tawm hauv lub tank, nws yog tam sim ntawd rhuab mus txog 500 ℃ los ua ib tug alloy zaj duab xis ntawm zinc thiab hlau. Hom ntawv galvanized no muaj adhesion zoo thiab weldability ntawm cov xim;
③ Electrogalvanized steel ntawv. Hom galvanized steel ntawv no tsim los ntawm electroplating muaj kev ua tau zoo. Txawm li cas los xij, cov txheej txheej yog thinner thiab corrosion kuj tsis zoo li cov ntawv kub dip galvanized;
④ Ib sab thiab ob sab sib txawv galvanized steel nplooj ntawv. Ib sab galvanized steel ntawv yog cov khoom siv galvanized ntawm ib sab. Nws muaj qhov hloov tau zoo dua li ob sab galvanized ntawv hauv vuam, pleev xim, kho xeb, kev ua haujlwm, thiab lwm yam. Yuav kom kov yeej qhov tsis zoo ntawm ib leeg-sab uncoated zinc, muaj lwm daim ntawv galvanized coated nrog ib txheej nyias ntawm zinc rau. lwm sab, uas yog, ob sab sib txawv galvanized ntawv;
⑤ Alloy thiab composite galvanized steel ntawv. Nws yog ib daim ntawv hlau uas ua los ntawm zinc thiab lwm yam hlau xws li txhuas, txhuas, zinc, thiab lwm yam alloys los yog composite plated. Cov ntawv hlau no muaj ob qho tib si zoo los tiv thaiv xeb thiab kev ua haujlwm zoo;
Ntxiv rau tsib hom saum toj no, kuj tseem muaj xim galvanized steel ntawv, luam ntawv coated galvanized steel ntawv, polyvinyl chloride laminated galvanized steel los xij, thiab lwm yam. Tab sis feem ntau siv yog tseem kub-dip galvanized ntawv.
Main manufacturers thiab ntshuam ua lub teb chaws:
①Main domestic manufacturers: Wuhan Hlau thiab hlau, Anshan hlau thiab hlau, Baosteel Huangshi, MCC Hengtong, Shougang, Panzhihua hlau thiab hlau, Handan hlau thiab hlau, Ma Steel, Fujian Kaijing, thiab lwm yam.;
② Cov neeg tsim khoom txawv teb chaws suav nrog Nyiv, Lub Tebchaws Yelemees, Russia, Fabkis, Kaus Lim Qab Teb, thiab lwm yam.
Post lub sij hawm: Aug-12-2024