Galvanizing inoreva tekinoroji yekurapa yekuisa zingi pamusoro pesimbi, alloy kana zvimwe zvinhu nechinangwa chekunaka uye kudzivirira ngura.Nzira huru ndeye inopisa dip galvanizing.
Zinc inonyungudika muasidhi uye alkali, saka inonzi amphoteric metal.Zinc inochinja zvishoma mumhepo yakaoma.Mumhepo yakanyorova, zinc surface ichaita dense basic zinc carbonate film.Iine sulfur dioxide, hydrogen sulfide uye Marine atmosphere, zinc corrosion resistance is urombo, kunyanya mukupisa uye humidity yakakwira ine organic corderode ye electrocode, zviri nyore kuita zinc carbonate atmosphere. iri -0.76v. Kune matrix esimbi, zinc coating ndeye anodic coating, iyo inonyanya kushandiswa kudzivirira kupera kwesimbi. Basa rayo rekudzivirira rine hukama hukuru nehupamhi hwekuputira.Idziviriro uye yekushongedza zvinhu zve zinc coating zvinogona kuvandudzwa zvakanyanya nepassivation, staining kana kuvhara nemumiririri wekudzivirira.
The musimboti kukurumidza oxidize pamusoro pamusoro simbi uye simbi zvigadzirwa kuita dense oxide film protective layer.Kune nzira mbiri dzinowanzoshandiswa kusviba: zvechinyakare alkaline kupisa blackening uye kunonoka blackening pakamuri tembiricha.Asi kuitika kwekamuri tembiricha blackening process pa low carbon simbi hazvina kunaka.Zviri nani kusviba A3 simbi ine alkali.Alkaledivided blackenction, blackening maviri ane blackening zvakare. Zvinhu zvedoro dema sodium hydroxide uye sodium nitrite. Tembiricha inodiwa pakusviba yakafara, kubva pa135 degrees Celsius kusvika 155 degrees Celsius, uye unowana nzvimbo yakanaka, asi zvinotora nguva. Mukuita basa, kutarisisa kunofanirwa kubhadharwa kune kunaka kwekubvisa ngura nemafuta kusati kwasviba kwechishandiso, uye kunyura kwemafuta. "bluing" mvura yemishonga inotora alkaline oxidation kana acid oxidation.Kugadzira firimu reoxide pamusoro pesimbi kudzivirira kuparara kunonzi "bluing".The oxide film inoumbwa pamusoro pesimbi yakasviba mushure mekurapwa kwe "bluing", kunze kwekunze kunonyanya ferric oxide uye mukati memukati ndeye ferrous oxide.
Yakakwirira - mabhoti ane simba anowanzoshandiswa mumajoini anokosha, pasi pekunetseka kukuru uye shear.Nhanho yekupedzisira mukugadzirwa kwebhoti ndeyekupisa kupisa, kunowanzozivikanwa se quenching, kuwedzera simba remabhoti.Zvisinei, hydrogen embrittlement inoitika nyore mukugadzirisa mabhoti. inogadzirwa nekugadzirisazve kurapwa kwepamusoro-simba mabhoti ifirimu yakagadzikana yakagadzikana.
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Nguva yekutumira: Sep-09-2019