G550 Az150

Hlau muaj nyob rau hauv G235, G345, thiab G550. G550 steel feem ntau yog siv hauv cov qauv thoob ntiaj teb. Lub teeb steel txheej tuaj yeem muab faib ua galvanized thiab aluminium-zinc txheej: Galvanized: Cov ntsiab lus zinc feem ntau yog txiav txim siab los ntawm tus lej. Lub teeb steel villa feem ntau siv zinc cov ntsiab lus ntawm 275 grams thiab 300 grams, uas sawv cev rau cov nyiaj zinc ib square meter. Qhov siab dua cov ntsiab lus, lub thicker zinc txheej. Lub cev hloov pauv hauv cov txheej txheem galvanized: galvanized txheej yog raug rau cov huab cua ntev ntev thiab hnov ​​​​mob nrog oxygen, ua rau lub ntsej muag dub. Aluminium-zinc txheej: Kuj hu ua AZ150, aluminium-zinc txheej yog 2-6 zaug ntau dua corrosion-resistant dua galvanized txheej. Qhov saum npoo ntawm aluminium-zinc coated beams tsis hloov xim thaum raug rau lub sijhawm ntev. Nyob rau hauv cov ntaub ntawv ntawm chemical corrosion, lub cev cov tshuaj tiv thaiv tshwm sim nyob rau saum npoo, tsim ib tug txhuas tiv thaiv zaj duab xis ntawm cov kab teeb, uas cais lawv los ntawm lwm yam chemical tshuaj thiab tiv thaiv cov khoom tseem ceeb ntawm cov kab teeb los ntawm xeb.

1. Thaum tshav kub kub tsis kam: Lub tshav kub tsis kam ntawm aluminium-zinc alloy coated steel ntawv yog zoo dua li ntawm galvanized steel ntawv. Nws muaj qhov kub thiab txias oxidation tsis kam thiab tuaj yeem siv rau hauv qhov chaw kub kub txog li 315 degrees.

2. Reflectivity: Aluminium-zinc txheej muaj qhov cuam tshuam siab, ua rau nws muaj txiaj ntsig zoo rau kev tiv thaiv tshav kub. Lub thermal reflectivity ntawm aluminium-zinc yog yuav luag ob npaug ntawm cov hlau galvanized, yog li nws tuaj yeem ua tiav cov txiaj ntsig txuag hluav taws xob thaum siv los ua cov qauv tseem ceeb ntawm lub tsev nyob rau hauv ib txwm muaj.

1. Processability: Ua tau raws li qhov yuav tsum tau ua rau yob nias, stamping forming, dabtsi yog khoov, thiab lwm yam kev ua.

2. Corrosion resistance (piv rau kub-dip galvanizing): Kub-dip aluminium-zinc steel phaj muaj corrosion kuj zoo heev, nrog rau kev pab lub neej 2-6 lub sij hawm ntev dua li qub galvanized steel phaj ntawm tib txheej thickness.

3. Reflectivity: Lub peev xwm los cuam tshuam cov cua sov thiab lub teeb yog ob zaug ntawm kub-dip galvanized steel phaj, nrog ib qho kev cuam tshuam ntau dua 0.70, tshaj 0.65 teev los ntawm EPA Energy Star, ua nws yog ib qho zoo tagnrho lub zog-txuag khoom siv.

4. Thaum tshav kub kub tsis kam: Ordinary kub-dip galvanized cov khoom feem ntau muaj qhov siab tshaj plaws kev siv kub ntawm 230 degree thiab yuav discolor ntawm 250 degree, thaum txhuas-zinc plated los xij tuaj yeem siv rau hauv 315 degree ib puag ncig yam tsis muaj xim. Baosteel lub tshav kub-resistant passivated txhuas-zinc steel phaj qhia tau hais tias tsawg xim hloov piv rau txhuas thiab txhuas-plated nplooj ntawv tom qab 120 teev nyob rau hauv ib tug 300 degree ib puag ncig.

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