Ubude bexesha lokukhusela lomgca we-galvanized roll enkuluucingo lwezinkiinxulumene ngokusondeleyo nobukhulu bengubo.Ngokuqhelekileyo, kwirhasi eyomileyo engundoqo kunye nokusetyenziswa kwangaphakathi, nakwiimeko ezirhabaxa zokusingqongileyo, ubukhulu bomaleko wegalati kufuneka buphakame kakhulu.Ngoko ke, impembelelo yokusingqongileyo kufuneka ithathelwe ingqalelo xa ukhetha ubukhulu bomgca we-galvanized.Emva kokunyangwa kwe-passivation ye-galvanized layer, umaleko wefilimu endala eqaqambileyo kunye nenhle ye-passivation film inokuveliswa, enokuphucula kakhulu ukusebenza kwayo kokukhusela.
Kukho iintlobo ezininzi zesisombululo segalvanized, esinokwahlulwa sibe yicyanide plating isisombululo kunye ne-cyanide plating isisombululo.Isisombululo se-cyanide galvanizing sinokusasazwa okulungileyo kunye nokukwazi ukugubungela, i-crystallization yokugqoka igudileyo kwaye ilungile, ukusebenza okulula, uluhlu olubanzi lwesicelo, lusetyenziswe kwimveliso ixesha elide.Nangona kunjalo, ngenxa yokuba isisombululo se-plating sine-cyanide enetyhefu kakhulu, igesi ephumayo kwinkqubo yokucoca iyingozi kwimpilo yabasebenzi, kwaye amanzi amdaka kufuneka aphathwe ngokungqongqo ngaphambi kokuba akhululwe.
I-Zinc yintsimbi emhlophe-emhlophe, i-brittle kubushushu begumbi, inyibilika kwi-asidi kunye ne-alkali, eyaziwa ngokuba yintsimbi ye-amphoteric.I-zinc ecocekileyo izinzile ngakumbi emoyeni owomileyo, kwaye incinci emoyeni omanzi okanye amanzi aqukethe i-carbon dioxide kunye ne-oxygen.Ifilimu encinci ye-zinc carbonate iya kwenziwa phezu komhlaba, enokulibazisa izinga lokubola kwe-zinc layer.Ukunganyangeki kwe-corrosion layer yegalvanized kwisisombululo esimanzi se-asidi, i-alkali kunye ne-sodium chloride yomelele.Kananjalo ayixhathisi kukonakala kwi-atmosphere equkethe i-carbon dioxide kunye ne-hydrogen sulfide nakwi-Marine atmospheres;Kubushushu obuphezulu kunye nomoya wokufuma okuphezulu kwaye iqulathe umoya weasidi ephilayo incinci, umaleko ofakwe igalvanized kulula ukuba udleke.
Ixesha lokuposa: 07-03-23