Iigalvanized
I-Zinc ifakwe i-sheet eyandisa ubomi bemveliso kwaye inceda ukuthintela ukubola.Ngokukhanya okukhulu kobushushu kunye nenkangeleko ekhangayo, kulungele ukwakhiwa kwezakhiwo zoshishino, ii-silos, iishedi, phakathi kwezinye izicelo.igalelo ekuboniseni ukushisa.
Iphepha elenziwe ngegalvanized
Iphepha le-galvanized elixande elinonxande elinokumelana nokugqwesa, lilungele ukwakhiwa kophahla kunye ne-facade yeshishini.Ngobomi obude obuluncedo, iyamelana neendawo ezifumileyo kunye
I-galvanizing yindlela yoqoqosho kunye nesebenzayo yokuthintela ukubola kwentsimbi, kunye nobukhulu bentsimbi ye-galvanized ngokuqhelekileyo yi-0.35 ukuya kwi-3 mm.IsiNgesi elithi "galvanizing" lithetha ukuba umaleko wagalvanized unokukhusela i-electrochemically plate yentsimbi.Ngomnyaka we-1742, i-French Meloman (i-Melomin) yafunda ngempumelelo indlela ye-galvanizing ye-hot-dip.Ngo-1836, i-French Sorel (i-Sorel) yasebenzisa indlela yokudibanisa i-hot-dip kwimveliso yemizi-mveliso.Ngo-1837, i-HW Grawford yafumana ilungelo elilodwa lomenzi we-hot-dip galvanizing nge-flux method.Ngomnyaka we-1935, i-American Sendzimir (T. Sendzimir) iphakamise ukusebenzisa indlela yokunciphisa igesi yokukhusela ngokuqhubekayo i-hot-dip galvanizing ye-strip iron, eyaziwa ngokuba yi "Sendzimir method".Ngomnyaka we-1937, umgca wokuqala weSendzimir oqhubekayo we-hot-dip galvanizing wakhiwa eUnited States.I-China yaqala ukuvelisa amashiti ashushu ediphu e-Anshan ngeminyaka yoo-1940, kwaye ngo-1979, umgca wokuqala oqhubekayo wokuntywila oshushu wentsimbi yomcu wakhiwa eWuhan.
Idiphu eshushu
Kukho iindidi ezimbini zendlela yokuntywila eshushu kunye ne-electroplating.Ubungqingqwa be-hot-dip zinc layer ngokuqhelekileyo yi-60 ~ 300g/m2 (icala elinye), elisetyenziselwa iindawo ezifuna ukuxhathisa okuqinileyo ku-corrosion.I-electroplated zinc layer yi-10-50g/m2 (icala elinye), esetyenziswa kakhulu kwiindawo ezipeyintiweyo okanye iindawo ezingapeyintwayo ezingadingi ukumelana nokugqwala okukhulu.Indlela yokuntywila eshushu yahlulwe ngendlela ye-flux kunye nendlela yokunciphisa igesi ekhuselayo ngokwendlela yonyango lwangaphambili.Indlela ye-flux kukuthabatha ipleyiti yensimbi edibeneyo ukususa i-oxides phezu komhlaba, emva koko udlule kwitanki ye-flux equkethe i-ZnCl2 kunye ne-NH4Cl, kwaye emva koko ungene kwi-tank ye-zinc etyhidiweyo ye-galvanizing.Indlela yokunciphisa igesi yokukhusela isetyenziswa ngokubanzi kwi-galvanizing eshushu-dip eqhubekayo yentsimbi yentsimbi.Intsimbi yomcu kuqala idlula kwisithando somlilo esifudumezelwayo ukuze sitshise ioli eshiyekileyo phezu komhlaba, kwaye kwangaxeshanye, ifilimu ye-iron oxide yenziwa phezu komhlaba;Isiponji Intsimbi.Emva kokuba intsimbi yentsimbi enomphezulu wayo ihlanjululwe kwaye isebenze ipholile kwiqondo lokushisa elingaphezulu kancinane kune-zinc etyhidiweyo, ingena kwi-zinc pot kwi-450-460 ° C, kwaye isebenzisa imela yomoya ukulawula ubukhulu be-zinc layer.Okokugqibela, igqithiswa ngesisombululo sechromate ukuphucula ukuxhathisa okumhlophe komhlwa.
Electroplating
Ngokwesisombululo se-plating esisetyenzisiweyo, sinokwahlulwa ngendlela yealkaline kunye nendlela ye-asidi.Isisombululo se-alkaline seplating sinexabiso eliphezulu, singcolisa okusingqongileyo, ukusebenza kakuhle kwemveliso, kunye nomgangatho ombi wokugquma, ngoko ke awusetyenziswanga.Amacandelo aphambili esisombululo se-acid plating yiZnSO4 · 7H2O, NH4Cl kunye ne-Al2 (SO4) 3 · 18H2O, njl. Nge-zinc ecocekileyo njenge-anode kunye nentsimbi ye-strip njenge-cathode, phantsi kwesenzo sangoku, i-anode plate ye-zinc iyachithwa. kwi-Zn2 + kwisisombululo se-plating, kwaye i-Zn2 + iyancitshiswa kwi-zinc yensimbi kwi-cathode kwaye ifakwe kumphezulu wentsimbi yentsimbi.Ukugquma kuphathwe ngesisombululo esixubileyo se-phosphate kunye ne-chromate, enokuphucula ukupeyinta, kunye nomphezulu wephepha le-electro-galvanized steel sheet liqaqambile kwaye ligudileyo, elalisetyenziswa kakhulu kwishishini lemoto ngaphambili.Kwiminyaka yakutshanje, ububanzi besicelo kwandiswe kwishishini lombane kunye nezinye iinkalo, eziye zakhuthaza uphuhliso lweshishini le-electro-galvanized sheet.Ngeminyaka yoo-1970, kwaphuhliswa amashiti anecala elinye.
Ixesha lokuposa: Mar-10-2022
