Zokhala ndi malata
Zinc yokutidwa ndi pepala lomwe limatalikitsa moyo wa chinthucho ndikuthandizira kupewa dzimbiri.Ndi kutentha kwakukulu ndi maonekedwe okongola, ndi bwino kumanga nyumba za mafakitale, silos, nkhokwe, pakati pa ntchito zina.zimathandizira kuwonetsera kutentha.
Pepala lagalasi
Rectangular malata pepala ndi mkulu kukana dzimbiri, abwino pomanga madenga ndi facades mafakitale.Ndi moyo wautali wothandiza, umalimbana ndi malo achinyezi komanso
Galvanizing ndi njira ndalama ndi zothandiza kupewa dzimbiri zitsulo, ndipo makulidwe a kanasonkhezereka zitsulo zambiri 0.35 kuti 3 mm.The English "galvanizing" amatanthauza kuti kanasonkhezereka wosanjikiza akhoza electrochemically kuteteza mbale zitsulo.Mu 1742, French Meloman (Melomin) anaphunzira bwino njira yotentha yothira galvanizing.Mu 1836, French Sorel (Sorel) inagwiritsa ntchito njira yothira-dip galvanizing popanga mafakitale.Mu 1837, HW Grawford adapeza chiphaso cha dip-dip galvanizing pogwiritsa ntchito njira ya flux.Mu 1935, American Sendzimir (T. Sendzimir) anaganiza kuti agwiritse ntchito njira yochepetsera gasi kuti apititse patsogolo kutentha kwachitsulo chachitsulo, chomwe chimadziwika kuti "Sendzimir method".Mu 1937, mzere woyamba wa Sendzimir wopitilira kutentha wa dip unamangidwa ku United States.China idayamba kupanga mapepala opaka malata otentha ku Anshan m'zaka za m'ma 1940, ndipo mu 1979, mzere woyamba wopitilira wotentha wothira mafuta opangira zitsulo unamangidwa ku Wuhan.
Hot dip
Pali mitundu iwiri ya njira yothira galvanizing ndi electroplating.Kukhuthala kwa zinc wosanjikiza wotentha nthawi zambiri ndi 60 ~ 300g/m2 (mbali imodzi), yomwe imagwiritsidwa ntchito pazinthu zomwe zimafunikira kukana kwa dzimbiri.Electroplated zinki wosanjikiza ndi 10-50g/m2 (mbali imodzi), amene makamaka ntchito mbali utoto kapena unpentinted mbali kuti safuna mkulu dzimbiri kukana.Njira yotsekemera yotentha imagawidwa mu njira ya flux ndi njira yochepetsera mpweya woteteza molingana ndi njira yopangiratu.The flux njira ndi pickle annealed zitsulo mbale kuchotsa oxides pamwamba, kenako kudutsa thanki flux muna ZnCl2 ndi NH4Cl, ndiyeno kulowa sungunuka zinki thanki kuti galvanizing.Njira yochepetsera gasi yoteteza imagwiritsidwa ntchito kwambiri pakuwotcha kosalekeza kwachitsulo chachitsulo.Chitsulo chachitsulo choyamba chimadutsa mung'anjo yoyaka moto kuti chiwotche mafuta otsalira pamwamba, ndipo nthawi yomweyo, filimu ya iron oxide imapangidwa pamwamba;Siponji Iron.Pambuyo pazitsulo zachitsulo zomwe pamwamba pake zayeretsedwa ndi kutsegulidwa ndi kuzizidwa ndi kutentha pang'ono kuposa zinki wosungunuka, zimalowa mumphika wa zinki pa 450-460 ° C, ndipo zimagwiritsa ntchito mpeni wa mpweya kuwongolera makulidwe a nthaka wosanjikiza.Pomaliza, imasinthidwa ndi njira ya chromate kuti ipititse patsogolo dzimbiri loyera.
Electroplating
Malinga ndi plating njira ntchito, akhoza kugawidwa mu njira zamchere ndi asidi njira.Yankho la alkaline plating lili ndi mtengo wokwera, limawononga chilengedwe, kutsika kwapang'onopang'ono, komanso kusanja bwino, kotero siligwiritsidwa ntchito.Zigawo zazikulu za njira yothetsera asidi plating ndi ZnSO4 · 7H2O, NH4Cl ndi Al2 (SO4) 3 · 18H2O, etc. Ndi zinki koyera monga anode ndi Mzere zitsulo monga cathode, pansi pa zochita za panopa, ndi nthaka anode mbale kusungunuka. mu Zn2 + mu plating solution, ndipo Zn2 + imachepetsedwa kukhala zinki zachitsulo pa cathode ndikuyika pamwamba pazitsulo zachitsulo.Chophimbacho chimathandizidwa ndi yankho losakanizika la phosphate ndi chromate, lomwe limatha kuwongolera utoto, ndipo pamwamba pa pepala lopangidwa ndi ma electro-galvanized zitsulo ndi lowala komanso losalala, lomwe linkagwiritsidwa ntchito kwambiri m'magalimoto am'mbuyomu.M'zaka zaposachedwa, kuchuluka kwa ntchito kwakulitsidwa kumakampani amagetsi ndi zina, zomwe zalimbikitsa chitukuko chamakampani opanga ma elekitirodi.M’zaka za m’ma 1970, mapepala a malata a mbali imodzi anapangidwanso.
Nthawi yotumiza: Mar-10-2022
