Galvanized
Zinc yakavharwa sheet iyo inowedzera hupenyu hwechigadzirwa uye inobatsira kudzivirira ngura.Nekuratidzwa kukuru kwekupisa uye chitarisiko chinoyevedza, chakanakira kuvakwa kwezvivakwa zveindasitiri, silos, matura, pakati pezvimwe zvinoshandiswa.zvinobatsira kuratidza kupisa.
Galvanized sheet
Rectangular corrugated galvanized sheet ine yakakwirira kuramba ngura, yakanakira kuvaka matenga uye mafacade emaindasitiri.Nehupenyu hurefu hunobatsira, hunopesana nemamiriro emvura uye
Galvanizing inzira ine hupfumi uye inoshanda yekudzivirira ngura yesimbi, uye ukobvu hwesimbi yakakoshwa kazhinji 0.35 kusvika 3 mm.Chirungu "galvanizing" zvinoreva kuti galvanized layer inogona electrochemically kudzivirira ndiro yesimbi.Muna 1742, French Meloman (Melomin) akabudirira kudzidza kupisa-dip galvanizing nzira.Muna 1836, French Sorel (Sorel) yakashandisa kupisa-dip galvanizing nzira mukugadzira maindasitiri.Muna 1837, HW Grawford yakawana patent yekupisa-dip galvanizing nenzira ye flux.Muna 1935, American Sendzimir (T. Sendzimir) akaronga kushandisa nzira yekudzivirira gasi yekudzivirira kupisa-dip galvanizing ye strip steel, inowanzozivikanwa se "Sendzimir method".Muna 1937, yekutanga Sendzimir inoenderera mberi inopisa-dip galvanizing line yakavakwa muUnited States.China yakatanga kugadzira machira anopisa anonyudza muAnshan mu1940s, uye muna 1979, mutsara wekutanga wekupisa-dhip galvanizing mutsetse wesimbi wakavakwa muWuhan.
Hot dip
Kune marudzi maviri ekupisa-dip galvanizing nzira uye electroplating nzira.Ukobvu hwekupisa-dip zinc layer inowanzoita 60 ~ 300g/m2 (divi rimwechete), iyo inoshandiswa kune zvikamu zvinoda kuramba kwakasimba kwekuora.Electroplated zinc layer ndeye 10-50g/m2 (divi rimwechete), iro rinonyanya kushandiswa kune dzakapendwa mativi kana unpeinted zvikamu zvisingade yakakwira corrosion resistance.Iyo inopisa-dip nzira yakakamurwa kuita flux nzira uye yekudzivirira gasi nzira yekudzikisa zvinoenderana neiyo pretreatment nzira.Mutoo weflux ndeyekunhonga ndiro yesimbi yakanyungudutswa kubvisa okisidhisi pamusoro, wobva wapfuura nemutangi rinoyerera rine ZnCl2 neNH4Cl, wobva wapinda mutangi yakanyungudutswa yezinc yekuvheneka.Iyo yekudzivirira gasi yekudzikisa nzira inoshandiswa zvakanyanya kune inoenderera inopisa-dip galvanizing ye strip simbi.Iyo tambo yesimbi inotanga kupfuura nepakati pemoto unopisa moto unopisa moto kupisa mafuta akasara pamusoro, uye panguva imwe chete, firimu resimbi oxide rinoumbwa pamusoro;Chiponji Iron.Mushure mokunge simbi yakanyungudutswa yesimbi yacheneswa uye yakashandiswa yakanyoroveswa kusvika kune tembiricha yakanyungudutswa, inopinda mupoto yezinc pa450-460 ° C, uye inoshandisa banga remhepo kudzora ukobvu hwezinc layer.Pakupedzisira, inopfuudzwa ne chromate mhinduro yekuvandudza chena rust resistance.
Electroplating
Zvinoenderana nemhinduro yeplating inoshandiswa, inogona kukamurwa kuita alkaline nzira uye nzira yeasidhi.Iyo alkaline plating mhinduro ine mutengo wakakwira, inosvibisa nharaunda, yakaderera kugadzirwa kwehunyanzvi, uye hurombo hwekuputira mhando, saka haisati yashandiswa.Izvo zvikamu zvikuru zve acid plating solution ndeye ZnSO4 · 7H2O, NH4Cl uye Al2 (SO4) 3 · 18H2O, nezvimwewo. Ne zinc yakachena seanode uye simbi yemucheka se cathode, pasi pechiito chezvino, zinc anode plate inonyunguduka. muZn2+ mune mhinduro yeplating, uye Zn2+ yakaderedzwa kuita metallic zinc pane cathode uye inoiswa pamusoro peiyo strip simbi.Iyo yekuputira inobatwa neyakasanganiswa mhinduro yephosphate uye chromate, iyo inogona kuvandudza kupenda, uye pamusoro peiyo electro-galvanized simbi sheet inopenya uye yakatsetseka, iyo yainyanya kushandiswa muindasitiri yemotokari munguva yakapfuura.Mumakore achangopfuura, chiyero chekushandisa chakawedzerwa kune indasitiri yemagetsi uye zvimwe zvinhu, izvo zvakasimudzira kuvandudzwa kweiyo electro-galvanized sheet indasitiri.Mumakore ekuma1970, marata ane divi rimwe chete akagadzirwawo.
Nguva yekutumira: Mar-10-2022
