⑴abe sama quenching:
Shine farfajiya na ƙarfe ta hanyar dake dumama ga yanayin zafin jiki da ke sama, amma zafi bai da lokacin yadawa zuwa cibiya, kuma za a iya saukar da farfajiya na mawuyacin hali, da kuma Core ba ta daure Canjin lokaci, wanda ya fahimci hardening da Core canzawa. Ya dace da carbon na matsakaici.

⑵ magani mai zafi magani:
Yana nufin sinadarai na cirewa, tare da ikon yaduwa a cikin zafin jiki, shi a cikin farfajiya abun sunadarai da tsarin farfajiya na kayan aikin, don cimma farfajiyar farfajiya na kayan aiki, don cimma farfajiyar farfajiya na kayan aikin baki tare da takamaiman bukatun kungiyar da aikin aikin magani. Dangane da nau'ikan abubuwan da ke ciki, za a iya raba magani mai zafi zuwa carburizing, nitruding, cyanidation da kuma dokar ƙarfe.
Carburizing: Carburizing shine tsari wanda carbon atoms ya shiga farfajiya farfajiya na karfe. Shima don yin ƙananan kayan aikin carbon ɗin carbon tare da manyan carbon karfe, sa'an nan kuma bayan ya sami ƙarfi da ƙarancin aiki, don haka ɓangaren farfajiya yana da ƙarfi, kuma ɓangaren ɓangaren aikin har yanzu yana kula da tauri da filastik na ƙananan carbon karfe.
Nitruding, ko ba da kai, tsari ne wanda aka tsara ta wurin saman karfe na karfe na ƙarfe na cikin nitrogen. Dalilin shine inganta taurin kai da kuma sanya juriya na farfajiya da inganta karfin gawa da juriya na lalata. A halin yanzu, ana amfani da hanyar da aka nitriyar iskar gas a samarwa.
Cyanidation, kuma ana kiranta da carbonitring, shine infictrorth lokaci ɗaya na carbon da nitrogen caroms cikin karfe. Yana sa saman karfe carburizing da nitring halaye.
Innetration na ciki: yana nufin shigar da shigarwar ƙarfe na ƙarfe zuwa farfajiya farfajiya na ƙarfe. Zai yi farfajiya na ƙarfe na karfe, domin sanya kayan aikin kayan aiki yana da wasu alloy, halaye na musamman, kamar yadda ake amfani da shi, da sauransu .. Yawanci ake amfani da shi a cikin samar da Aloyoni, chromizing, batsa, silicon da sauransu.