Galvanizing amatanthauza pamwamba mankhwala luso plating wosanjikiza nthaka pamwamba pa zitsulo, aloyi kapena zipangizo zina pofuna kukongola ndi dzimbiri prevention.The njira yaikulu ndi otentha divi galvanizing.
Zinc ndi sungunuka mu zidulo ndi zamchere, choncho amatchedwa amphoteric metal.Zinc kusintha pang'ono mu mpweya youma.Mu mpweya wonyowa, nthaka pamwamba kupanga wandiweyani zofunika nthaka carbonate film.Muli sulfure dioxide, wa hydrogen sulfide ndi m'mlengalenga Marine, nthaka dzimbiri kukana ndi osauka, makamaka kutentha ndi mkulu chinyezi munali organic acid cordedide mpweya ndi zinki angathe kukhala cordero. ndi 0.76v. Kwa matrix achitsulo, zokutira za zinki ndi za anodic zokutira, zomwe zimagwiritsidwa ntchito makamaka poletsa dzimbiri lachitsulo. Ntchito yake yotetezera imakhala ndi chiyanjano chachikulu ndi makulidwe a zokutira.Zotetezera ndi zokongoletsera zazitsulo za zinc zimatha kusinthidwa kwambiri ndi passivation, kutsekemera kapena kuvala ndi wothandizira chitetezo.
Mfundo yake ndi kuthamangitsa oxidize pamwamba pa chitsulo ndi zitsulo zinthu kupanga wandiweyani okusayidi filimu zoteteza wosanjikiza.Pali njira ziwiri zofala ntchito za blackening: chikhalidwe alkaline Kutentha blackening ndi mochedwa blackening pa firiji.Koma zotsatira za kutentha kwa chipinda blackening ndondomeko pa otsika mpweya zitsulo si zabwino.Ndi bwino kuda A3 zitsulo ndi alkali. Zigawo za mowa wakuda ndi sodium hydroxide ndi sodium nitrite. Kutentha chofunika kuti blacken ndi lonse, kuyambira pafupifupi 135 digiri Celsius mpaka 155 digiri Celsius, ndipo inu kupeza pamwamba, koma zimatenga nthawi. Mu ntchito yothandiza, chidwi ayenera kulipidwa khalidwe la dzimbiri ndi kuchotsa mafuta pamaso wakuda wa workpiece, ndi passivation mafuta kumiza nthawi zambiri ndi wakuda ndondomeko. "Bluing" mankhwala madzi utenga zamchere makutidwe ndi okosijeni kapena asidi oxidation.Njira kupanga okusayidi filimu pamwamba zitsulo kuteteza dzimbiri amatchedwa "bluing".The okusayidi filimu anapanga padziko wakuda zitsulo pambuyo mankhwala "bluing", wosanjikiza wakunja ndi makamaka ferric okusayidi ndi wosanjikiza wamkati ndi chitsulo okusayidi.
Mabotolo apamwamba kwambiri amagwiritsidwa ntchito m'magulu ofunikira kwambiri, potengera kupsinjika kwakukulu ndi kukameta ubweya.Chotsatira chomaliza pakupanga bolt ndi chithandizo cha kutentha, chomwe chimadziwika kuti quenching, kuwonjezera mphamvu ya bolts. opangidwa ndi reheat mankhwala a mkulu-mphamvu mabawuti ndi ndi khola makutidwe ndi okosijeni filimu.
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Nthawi yotumiza: Sep-09-2019