Launi mai rufi karfe farantin kuma ana kiransa Organic farantin karfe mai rufiko farantin karfe da aka riga aka rufawa. A matsayin ci gaba da samar da hanyar coils, launi karfe faranti za a iya raba biyu hanyoyi: electro-galvanized da zafi tsoma galvanized.
A lokaci guda kuma, electro-galvanizing wata hanya ce ta yin fenti mai launin zinari-"Layer zinc karfe ko zinc gami" ta hanyar lantarki.
Hot-tsoma galvanizing, kuma aka sani da zafi-tsoma galvanizing, shi ne tsoma da karfe kayayyakin da bukatar kiyayewa a cikin narkakkar tutiya karfe don sa bayyanar da gyara karfe shafi. Idan aka kwatanta da electroplating, karfe zafi-tsoma shafi ne mai kauri; a karkashin yanayi guda, yana da tsawon rai.
Lalacewar shimfidar galvanized mai zafi mai zafi akan saman karfe yayi daidai da na tutiya mai tsafta. Lalacewar zinc a cikin yanayi yana kama da tsarin lalata na ƙarfe a ƙarƙashin yanayin yanayi. Chemical iskar shaka lalata faruwa, electrochemical lalata faruwa a kan tutiya surface, da ruwa film condensation faruwa. A cikin tsaka-tsaki ko raunin acidic, samfuran lalata da aka kafa ta galvanized Layer Layer sune mahadi marasa narkewa (zinc hydroxide, zinc oxide, da zinc carbonate). Waɗannan samfuran za a raba su ta hanyar ajiya kuma su samar da ƙaramin bakin ciki mai kyau.
Gabaɗaya yana iya kaiwa kauri na 8μm”. Irin wannan fim yana da ƙayyadaddun kauri, amma ba kawai mai narkewa a cikin ruwa ba, kuma yana da karfi adhesion. Saboda haka, yana iya taka shinge tsakanin yanayi da takardar galvanized. Hana kara lalata. Gilashin galvanized ya lalace yayin kiyayewa, kuma wani ɓangare na saman karfe yana fuskantar yanayi.
A wannan lokacin, zinc da baƙin ƙarfe suna samar da ƙaramin baturi. Yiwuwar zinc yana da ƙasa da na baƙin ƙarfe sosai. A matsayin anode, zinc yana da tasiri na musamman na anode a kan farantin karfe don guje wa lalata farantin karfe.
Jirgin da aka yi da launi wani nau'i ne na suturar ruwa, wanda ake amfani da shi don tsabtace saman karfe ta goga ko abin nadi. Bayan dumama da warkewa, ana iya samun fim ɗin fenti tare da kauri iri ɗaya.
Lokacin aikawa: Nov-02-2021