Nyob rau hauv lub ntiaj teb no thawb rau lub zog tauj dua tshiab, hnub ci photovoltaic (PV) cov tshuab tau nthuav dav sai, tab sis kev ruaj khov ntawm cov hlua txuas tseem yog ib qho kev txhawj xeeb tseem ceeb, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig hnyav. Zinc aluminium magnesium (ZAM) coated steel tau tshwm sim los ua cov khoom cog lus rau hnub ci brackets, muab kev txhim kho corrosion thiab kev ua haujlwm ntev piv rau cov tsoos kub -dip galvanized steel.
Qhov tseem ceeb ntawm ZAM brackets nyob rau hauv lawv cov txheej txheem tiv thaiv corrosion siab heev. Tsis zoo li cov txheej txheem galvanized uas tsuas yog tso siab rau zinc qhov kev txi ntawm anode nyhuv, ZAM's ternary alloy muaj pes tsawg leeg (feem ntau Zn-6%Al-}3%Mg) tsim muaj ntau txheej txheej tiv thaiv. Aluminium ua ib qhov ntom ntom, impermeable oxide zaj duab xis rau ntawm qhov chaw, ua lub cev tiv thaiv kev ya raws, ntsev tsuag, thiab muaj kuab paug. Zinc muab kev tiv thaiv kev txi, corroding nyiam los tiv thaiv lub hauv paus steel substrate txawm tias cov txheej puas. Qhov tshwj xeeb tshaj yog, magnesium ua rau nws tus kheej zoo li qub: thaum khawb me me tshwm sim, magnesium ions hnov mob nrog cov khoom nyob ib puag ncig los tsim cov tshuaj tiv thaiv uas kaw qhov chaw puas, tiv thaiv kev sib kis. Kev sim kuaj pom tseeb tias ZAM txheej tuaj yeem tiv taus ntau dua 9,000 xuab moos ntawm cov tshuaj tsuag ntsev uas tsis muaj xeb liab, 10-20 npaug ntev dua li cov qauv galvanized steel ^.
Qhov kev tiv thaiv corrosion zoo tshaj no ncaj qha mus rau kev txhim kho durability hauv tiag - ntiaj teb daim ntawv thov hnub ci. Hauv cov cheeb tsam ntug dej hiav txwv uas muaj ntsev ntau, ZAM brackets tuav lawv cov qauv kev ncaj ncees rau ntau tshaj 30 xyoo, piv rau 15-20 xyoo rau cov tsoos galvanized brackets. Nyob rau hauv cov cheeb tsam uas muaj kuab paug huab cua, ZAM cov tshuaj tiv thaiv corrosion txo cov kev xav tau ntawm 70% nyob rau hauv lub neej ntawm lub system. Cov khoom siv siab hardness (ob zaug ntawm cov hlau galvanized) kuj txhim kho kev puas tsuaj, txo kev puas tsuaj thaum lub sij hawm teeb tsa thiab los ntawm ib puag ncig yam xws li cua tshuab xuab zeb.
Thaum ZAM brackets muaj 10-15% tus nqi nce siab dua li cov khoom siv galvanized, lawv lub neej kev pabcuam txuas ntxiv thiab kev saib xyuas qis dua ua rau lub sijhawm 5-7 xyoo them rov qab, uas yog 1-2 xyoos luv dua li cov txheej txheem hauv ib puag ncig hnyav. Raws li kev lag luam hnub ci txuas ntxiv mus rau hauv cov huab cua nyuaj, ZAM mounting brackets sawv cev rau cov nqi tsim nyog los txhim kho lub zog ruaj khov thiab ua kom lub zog ruaj khov mus ntev.
