Pickling hanya ce ta al'ada da ake amfani da ita don tsarkakewakarfe saman.Yawanci, workpieces suna nutsewa a cikin wani ruwa bayani dauke da sulfuric acid, a tsakanin sauran jamiái, don aiwatar da kau da oxide fina-finai daga karfe surface.Wannan tsari yana aiki azaman share fage ko matakin tsaka-tsaki a cikin ayyukan masana'antu kamar lantarki, enameling, mirgina, wucewa, da aikace-aikace masu alaƙa.
Dabarar da aka yi amfani da ita don kawar da fata mai oxide da tsatsa a saman ƙarfe daga saman ƙarfe da ƙarfe, ta yin amfani da maganin acidic, ana nuna shi azaman pickling.
Iron oxides kamar ma'aunin oxide da tsatsa (Fe3O4, Fe2O3, FeO, da dai sauransu) suna fuskantar halayen sinadarai tare da maganin acid, samar da gishiri wanda ke narkewa a cikin maganin acid kuma an cire su.
shan maganin sinadarai tare da maganin acidic, wanda ke haifar da samuwar gishiri mai narkewa wanda daga baya aka fitar.Acids zuwa tsarin pickling sun ƙunshi sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, chromic acid, hydrofluoric acid, da kuma haɗaɗɗun acid.Mafi rinjaye, sulfuric acid da hydrochloric acid sune zaɓin da aka fi so.Hanyoyi na zaɓe da farko sun haɗa da ɗimbin nutsewa, ɗibar feshi, da cire tsatsa ta manna acid.
Gabaɗaya, ana yawan amfani da tsinken nutsewa, kuma ana iya amfani da hanyar fesa wajen samarwa da yawa
Abubuwan da aka haɗa da ƙarfe ana amfani da su a al'ada don tattarawa a cikin 10% zuwa 20% (ta ƙarar) maganin sulfuric acid a zafin aiki na 40 ° C.Maye gurbin maganin pickling ya zama wajibi lokacin da abun ciki na baƙin ƙarfe ya zarce 80g/L kuma ferrous sulfate ya wuce 215g/L a cikin maganin.
A dakin da zafin jiki,pickling karfetare da 20% zuwa 80% (girman) maganin hydrochloric acid ba shi da haɗari ga lalata da haɓakar hydrogen.
Sakamakon furucin lalatawar acid zuwa karafa, an gabatar da masu hana lalata.Bayan tsaftacewa, saman ƙarfe yana nuna siffa mai launin azurfa-fari, a lokaci guda yana jurewa don haɓaka halayen juriyar lalata na bakin karfe.
Yi imani da wannan bayanin yana tabbatar da amfani.Idan ƙarin tambayoyi sun taso, da fatan a yi shakka a sadarwa.
Lokacin aikawa: Nuwamba-22-2023