1) a cikin Austenite isothermal canji taswirar na hankula yankin, wato, game da 500-600 ℃, ruwa a cikin tururi film mataki, sanyaya gudun ba da sauri isa, sau da yawa haifar m.ƙirƙirasanyaya da rashin isasshen saurin sanyaya da samuwar "laushi mai laushi".A cikin martensite canji tsarin, wato, game da 300-100 ℃, ruwa ne a cikin tafasasshen mataki, da sanyaya kudi ne da sauri, da sauki yin martensite canji gudun ne da sauri da kuma samar da mai yawa na ciki danniya, kai ga nakasar ƙirƙira har ma da tsagewa.
2) Ruwan zafin jiki yana da tasiri mai girma akan iyawar sanyaya, don haka yana kula da canjin yanayin yanayi.Yayin da zafin ruwa ya tashi, ƙarfin sanyaya yana raguwa sosai, kuma yawan zafin jiki na matsakaicin yanayin sanyi yana motsawa zuwa ƙananan zafin jiki.Lokacin da ruwan zafin jiki ya wuce 30 ℃, da sanyaya kudi rage muhimmanci a cikin kewayon 500-600 ℃, wanda sau da yawa take kaiwa zuwa hardening.ƙirƙira, amma yana da ɗan tasiri akan ƙimar sanyaya a cikin kewayon canjin martensite.Lokacin da yawan zafin jiki ya tashi zuwa 60 ℃, yanayin sanyaya zai ragu da kusan 50%.

3) Idan ruwan ya ƙunshi iskar gas mai yawa (kamar sabon ruwan da aka canza), ko ruwan da aka gauraye da najasa maras narkewa, kamar mai, sabulu, laka, da sauransu, zai rage ƙarfin sanyaya sosai, don haka amfani da kulawa ya kamata a ba da kulawa ta musamman. ku.
Dangane da yanayin sanyaya na ruwa, ana iya amfani da ruwa gabaɗaya H zuwa sanyayawar ƙarfe na carbonƙirƙiratare da ƙananan girman sashe da sauƙi mai sauƙi.Quenching, dole ne kuma a lura: kiyaye ruwan zafi ƙasa da 40 ℃, mafi kyau tsakanin 15 zuwa 30 ℃, da kiyaye ruwa ko ruwa wurare dabam dabam, don halakar daƙirƙirasurface tururi membrane, kuma iya amfani da lilo workpiece a lokacin quenching (ko sa workpiece motsa sama da ƙasa) Hanyar to subvert da tururi membrane, ƙara da sanyaya kudi tsakanin 500-650 ℃, sanyaya yanayi, kauce wa samar da taushi batu.