Layer oxide akan saman farantin bakin karfe mai zafi mai zafi yana yawan kauri. Idan an cire shi ne kawai ta hanyar tsinken sinadarai, ba kawai zai ƙara lokacin da za a tsince shi ba, kuma zai rage yadda ake yin tsinken, amma kuma zai ƙara yawan kuɗin da za a tsince. Don haka, ana buƙatar amfani da wasu hanyoyin azaman hanyoyin taimako don tuntuɓar farantin karfe. Akwai manyan hanyoyin magani guda uku don pickling:

1. Harba mai fashewa

Shot peening hanya ce da ake amfani da ita sosai a halin yanzu. Ka'idar ita ce a yi amfani da kayan leƙen harbi don fesa harbin karfe mai kyau (yashi) don tasiri farantin bakin karfe mai rufi don cire Layer oxide akan saman karfe. Bayan harbin peening magani, an cire wani ɓangare na oxide Layer, da kuma tsarin na sauran oxide Layer a kan jirgin ya zama tsaka-tsaki da sako-sako da, wanda yake da amfani ga gaba tsari picking.

2. Maganin leaching Alkali

Maganin leaching na alkali shine leaching alkaline oxidative da rage leaching alkaline. Hakanan ana kiran nau'in alkali leaching-nau'in iskar shaka "hanyar wanka mai gishiri". Alkaline CrO3, kuma saboda canjin tsari da girma na Layer oxide, Layer oxide zai fadi. Rage alkaline leaching ne don canza insoluble karfe oxides kamar baƙin ƙarfe, nickel, chromium da sauran insoluble karfe oxides a cikin oxide Layer mayar da karafa da kuma low-farashi oxides ta hanyar karfi rage wakili NaH, da kuma sa oxide Layer karya da kuma fada a kashe, game da shi gajarta da pickling lokaci , inganta overall yadda ya dace.

Ya kamata a lura da cewa bakin karfe sanye take faranti zai haifar da wani mataki na Cr6+ gurbatawa a lokacin jiyya aiwatar da oxidative alkali leaching. Rage maganin leaching na alkaline na iya kawar da matsalar gurbatar yanayi na Cr6+, amma ba za a iya samar da mahimmin albarkatun sa, NaH a China ba. A halin yanzu, hanyar da aka fi amfani da ita a kasar Sin ita ce sinadarin potassium permanganate oxidation nau'in alkali leaching, yayin da ake amfani da nau'in maganin leaching na alkali a kasashen waje.

3. Neutral gishiri electrolysis

Tsarin electrolysis na gishiri mai tsaka tsaki yana amfani da maganin ruwa na Na2SiO4 azaman electrolyte. Bakin karfe mai rufi na fim zai iya wucewa ta hanyar lantarki tsakanin cathode da anode, ci gaba da canza cathode da anode, da kuma cire murfin oxide surface ta hanyar aikin na yanzu. Tsarin tsarin tsarin electrolysis na gishiri mai tsaka tsaki ya dogara ne akan gaskiyar cewa oxides na chromium, manganese, da baƙin ƙarfe a cikin Layer na oxide suna oxidized zuwa ions mai narkewa mai tsada mai tsada, ta haka ne ya narkar da Layer oxide; Ƙarfe ɗin da ke cikin baturi ya zama oxidized zuwa ions, ta yadda oxide Layer da aka makala a saman yana goge.