Dab tsi yog cov ntaub ntawv ntawm cov ntawv galvanized?
Galvanized ntawv yog hais txog ib daim ntawv hlau coated nrog ib txheej zinc ntawm qhov chaw. 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 tag nrho cov zis zinc yog siv rau hauv cov txheej txheem no.
Galvanized ntawvkhoom siv:
① Kub-dip galvanized steel phaj. Cov hlau phaj nyias yog immersed nyob rau hauv ib tug molten zinc da dej, thiaj li hais tias ib txheej ntawm zinc adheres rau saum npoo ntawm nyias steel phaj. Tam sim no, cov txheej txheem galvanizing tas mus li yog siv rau kev tsim khoom, uas yog, cov ntawv hlau dov tau txuas ntxiv rau hauv lub plating da dej uas muaj zinc molten los ua galvanized steel daim hlau;
② Alloyed galvanized steel ntawv. Hom steel phaj no kuj siv cov txheej txheem kub dip, tab sis nws yog rhuab mus txog 500 degree tam sim ntawd tom qab tawm hauv lub tank, thiaj li hais tias nws ua ib tug alloy zaj duab xis ntawm zinc thiab hlau. Hom ntawv galvanized no muaj cov xim zoo adhesion thiab weldability;
③ Electro-galvanized steel phaj. Hom galvanized steel phaj no muaj kev ua tau zoo los ntawm txoj kev electroplating. Txawm li cas los xij, cov txheej yog nyias thiab nws cov kev tiv thaiv corrosion tsis zoo li cov ntawv kub-dip galvanized;
④ Ib sab galvanized steel phaj thiab ob sab galvanized steel phaj. Ib sab galvanized steel ntawv yog ib yam khoom uas yog galvanized ntawm ib sab. Nyob rau hauv cov nqe lus ntawm vuam, painting, anti-xeb kev kho mob, thiab lwm yam., nws muaj zoo adaptability dua ob-sided galvanized los xij. Yuav kom kov yeej qhov tsis txaus ntawm ib sab tsis tau coated nrog zinc, muaj lwm daim ntawv galvanized uas yog coated nrog nyias txheej ntawm zinc ntawm sab nraud.
Galvanizing nyiaj Tus nqi galvanizing ntawm steel phaj feem ntau yog 180-220g/m'. Nyob rau hauv cov cheeb tsam yav qab teb ntub dej, cov nyiaj galvanizing tuaj yeem nce raws li 275g / m' los ua kom lub neej ua haujlwm ntawm cov khoom siv hlau. Lub neej ua haujlwm ntawm cov khoom siv galvanized feem ntau yog 20-25 xyoo.
Cov yam ntxwv ntawm zinc txheej ntawm galvanized sawb hlau: Cov txheej txheem zinc txheej electroplated tsis tuaj yeem tsim zinc spatter, thaum kub-dip galvanized txheej muaj zinc spatter. Cov txheej txheem tsim
Raws li hauv qab no: Thaum lub galvanized sawb tawm ntawm lub lauj kaub zinc, ib tug loj npaum li cas ntawm zinc kua yog tshuab rov qab mus rau lub zinc lauj kaub los ntawm cov cua riam. Nyob rau lub sijhawm no, tseem muaj cov zinc txheej ntshiab ntawm cov kab nrib pleb, uas txuas rau saum npoo ntawm cov hlau phaj hauv cov kua dej thiab cov ntaub ntawv ntawm cov hlau phaj. Muaj coob tus ntawm crystallization nuclei, raws li cov hlau phaj nce thiab txias, lub crystallization nuclei maj mam loj hlob mus rau zinc paj. Qhov ceev ntawm qhov txias txias, qhov me me ntawm spangles, thiab qhov qeeb qeeb ntawm qhov txias txias, qhov loj dua cov splatters.
Paj tsis galvanized ntawv:
Qhov tseeb, zinc paj tsuas yog muaj txiaj ntsig zoo nkauj thiab tsis muaj nqi siv tiag tiag. Ntawm qhov tsis sib xws, lawv tsis zoo ntawm kev tiv thaiv corrosion. Hauv cov teb chaws tsim, cov paj me me thiab tsis muaj zinc paj yog siv rau cov ntawv hlau galvanized.
