Prepainted galvanized steel kaujyog ib hom xim coated steel kauj (PPGI coil). Nws siv galvanized hlau ua lub hauv paus hlau. Zinc txheej muaj zog corrosion kuj. Ntxiv nrog rau kev pleev xim, nws yog qhov ruaj khov dua li cov hlau galvanized.Cov hlau coated steel ces ntsib qee cov txheej txheem ntxuav, ua ntej - kho cov kev daws teeb meem thiab thaum kawg tau txais ntau txheej txheej ntawm cov organic coatings, suav nrog laminates, vinyl dispersions, thiab xim. Cov txheej txheem txuas ntxiv no ntawm kev siv cov txheej txheem sib txawv yog hu ua coil txheej. Yog li ntawd, cov hlau kauj tsis xav tau kev pleev xim lossis ua tiav thaum ua haujlwm hauv cov khoom tiav.
Dab tsi yog Prepainted Galvanized Steel Chev
Taw qhia
Prepainted galvanized steel kauj yog ib hom xim coated steel kauj (PPGI coil). Nws siv galvanized hlau ua lub hauv paus hlau. Zinc txheej muaj zog corrosion kuj. Ntxiv nrog rau kev pleev xim, nws yog qhov ruaj khov dua li cov hlau galvanized.Cov hlau coated steel ces ntsib qee cov txheej txheem ntxuav, ua ntej - kho cov kev daws teeb meem thiab thaum kawg tau txais ntau txheej txheej ntawm cov organic coatings, suav nrog laminates, vinyl dispersions, thiab xim. Cov txheej txheem txuas ntxiv no ntawm kev siv cov txheej txheem sib txawv yog hu ua coil txheej. Yog li ntawd, cov hlau kauj tsis xav tau kev pleev xim lossis ua tiav thaum ua haujlwm hauv cov khoom tiav.
PPGI vs PPGL
Pib nrog, lawv siv cov substrates sib txawv. PPGI siv cov ntawv galvanized ua cov hlau hauv paus. Lawv muaj cov zinc txheej thoob plaws kom tsis txhob ya raws, xeb, thiab xeb los ntawm kev rhuav tshem cov hlau nto.The substrate rau prepainted galvalume steel yog kev sib xyaw ntawm 1.6% silicon, 43.3% zinc, thiab 55% aluminium. Lub substrate cuam tshuam rau lawv daim ntawv thov uas ntxiv qhov sib txawv ntawm 2 hom hlau.
Lub neej kev pab cuam ntawm ob hom hlau no kuj txawv vim cov substrates. Cov substrates prolong lub steels kev pab cuam lub neej los ntawm kev tiv thaiv lawv los ntawm xeb thiab corrosion. Zinc yog qhov zoo tshaj plaws substrate rau kev tiv thaiv hlau los ntawm xeb. PPGI muaj ze li ntawm 99% zinc hauv nws cov substrate, tab sis PPGL tsuas muaj 43.3%. Qhov no muab PPGI lub neej ua haujlwm ntev dua piv nrog PPGL. Txawm hais tias aluminium thiab silicone yog cov alloys zoo, lawv tsis yog qhov zoo tshaj plaws ntawm kev tiv thaiv hlau los ntawm corrosion los yog xeb. Lawv thaum kawg hnav nrog lub sijhawm, yog li nthuav tawm cov hlau kom ya raws uas ua rau corrosion.
Kuj tseem muaj qhov sib txawv ntawm qhov hnyav ntawm PPGI thiab PPGL. Aluminium, zinc, thiab silicone substrates yog hnyav dua zinc substrates. Raws li qhov tshwm sim PPGL hnyav dua PPGI. Txawm li cas los xij, ntau lub lag luam nyiam PPGI vim nws muaj peev xwm tiv taus xeb thiab xeb. Lub zog ntawm cov hlau yog ntau dua lossis tsawg dua li PPGL. Ib daim ntawv PPGL npog ib ncig ntawm 3% qhov chaw ntxiv piv rau daim ntawv PPGI.