Electrogalvanizing VS. Hot-dip Galvanizing
Maererano nenhamba, simbi iri nyore kuita ngura mumhepo, mvura kana ivhu, uye kurasikirwa kwegore kunokonzerwa nekuora kunokwana 1/10 yehuwandu hwekugadzirwa kwesimbi. Kuti uite pamusoro pezvitsigiro zvine mamwe mabasa akakosha uye kuvapa chitarisiko chekushongedza, ivo vanowanzobatwa ne electrogalvanizing.
Electrogalvanizing
Electrogalvanizing inzira inoshandisa zinc coating kusimbi kana iron nekushandisa magetsi. Nheyo iyi inosanganisira kunyudza chikamu kuti chifukidzwe mumushonga une zinc ions. Kana magetsi achipfuura nemu electrolyte, iyo zinc ions inoderedzwa pamusoro pe cathode, ichiisa chidimbu chitete che zinc yakachena. Ukobvu uye kufanana kwekuputira kunogona kunyatsodzorwa nekugadzirisa nguva yemaitiro, kuwanda kwezvino, uye kuumbwa kwe electrolyte. Iyi nzira inobvumira kupera kwakajeka, kwakatsetseka, uye kunofadza, ine machira anowanzo kubva pa5 kusvika ku30 micrometer.
Mamiriro ekuita emagetsi emagetsi anosanganisira kunamira kwakanakisa kune base simbi, ichipa yakanaka corrosion kuramba, kunyanya munzvimbo dzisina hutsinye. Iyo yunifomu uye inodzorwa ukobvu inovimbisa kutaridzika kunoenderana, ichiita kuti ive yakanaka kune zvikamu uko kupedzisa kwemhando yepamusoro kunodiwa. Zvisineyi, iko kutetepa kwacho kunoreva kuti electrogalvanizing inogona kusapa mwero wakafanana wekudzivirira kwemuchina sekupisa-dip galvanizing, uye inogona kukonzeresa kukuvara kubva kubrasion uye kukanganisa. Pasinei neizvi, nzira yacho inozivikanwa nokuda kwekukwanisa kwayo kubudisa yakanaka, kunyange kuvhara iyo inowedzera kutaridzika kwechigadzirwa chakapedzwa.
Minda inobatanidzwa mu electrogalvanizing iri kuramba ichiwedzera. Kushandiswa kwezvigadzirwa zvefastener kwapararira kumakina ekugadzira, zvemagetsi, zviridzwa chaizvo, makemikari, zvekufambisa, aerospace, nezvimwe, izvo zvakakosha zvikuru muhupfumi hwenyika.
Kupisa-dip galvanizing
Kupisa-dip galvanizing inzira yekudzivirira ngura apo simbi yakacheneswa uye yakagadzirwa kana zvinhu zvesimbi zvinonyudzwa mubhavhu rezinc yakanyungudutswa inosvika 450°C (842°F). Iyo zinc inopindirana nesimbi, ichiita mutsara wezinc-iron alloy layers pamusoro pesimbi, inoteverwa nehuturo hwezinc yakachena. Ichi chisungo chemetallurgical chinogadzira chigadziko chakasimba uye chakanyatsonamirwa. Ukobvu hweiyo zinc coating inozvidzora uye kazhinji inotangira pa45 kusvika 275 micrometers, zvichienderana nekukora kwezvinhu zvepasi. Nguva yekunyudzwa uye chiyero chekutonhodza mushure mekubviswa kubva mubhati inogona kukanganisa kutaridzika uye manyorerwo ekupedzisira kunyura, kazhinji zvichikonzera hunhu spangled kana crystalline pateni.
Mamiriro ekuita ekupisa-dip galvanized coatings anosanganisira kusimba kwakasiyana uye kwenguva refu corrosion kuramba, iyo inogona kugara kwemakumi emakore kunyangwe munzvimbo dzakaoma. Iyo gobvu zinc layer inopa dziviriro yakasimba kubva mukukuvadzwa kwemichina, senge makwara uye mabrasions, uye inoita sechibairo anode, corroding zviri nani kuchengetedza simbi yepasi. Iyo yekupfekedza zvakare ine yakanaka tembiricha kuramba, kunyangwe inogona kukanganiswa nekupisa kwakanyanya. Iyo yekutanga inopenya, yesimbi yegrey kutaridzika kwejasi kuchamira nekufamba kwenguva kune matte grey patina, iyo isingakanganise maitiro ayo ekudzivirira. Uyezve, nzira yacho inodhura-inoshanda kune zvinhu zvakakura uye zvinorema, sezvo inopa mhinduro yenguva refu inoda kugadziriswa kuduku.
Kupisa-dip galvanizing inoshandiswa zvakanyanya mumashandisirwo akasiyana siyana, kunyanya ayo anosanganisira zvivakwa zvekunze uye zvivakwa, uko kuratidzwa kune zvinhu kwakakosha. Inowanzo shandiswa kune zvimiro zvesimbi, mabhiriji, migwagwa mikuru yekuchengetedza, mapango ekushandisa, uye zvimwe zvekuvaka. Iyo nzira inozivikanwa zvakare mukugadzirwa kwemidziyo yekurima, michina yemaindasitiri, uye masisitimu ekufambisa, anosanganisira njanji nemidziyo yekutakura. Nekuda kwekugona kwayo kupa yakasimba, yakasimba, uye inogamuchirika kupedzisa, inopisa-dip galvanizing isarudzo inosarudzika kune chero application inoda yakavimbika uye yenguva refu dziviriro kubva mukuora.
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