1, a cikin hankula na austenitic isothermal miƙa mulki zane, watau, game da 500-600 ℃, ruwa ne a cikin tururi film mataki, da kuma sanyaya gudun ba azumi isa, wanda sau da yawa take kaiwa zuwa "laushi batu" kafa ta m sanyi da rashin isasshen sanyaya gudun ƙirƙira. A cikin martensitic canji tsarin, wato, game da 300-100 ℃, ruwa ne a cikin tafasasshen ruwa. mataki, saurin kwantar da hankali yana da sauri, mai sauƙi don yin saurin canji na martensitic yana da sauri da sauri kuma yana haifar da yawan damuwa na ciki, yana haifar da nakasar ƙirƙira ko ma fashewa.

2, da ruwa zafin jiki yana da babban tasiri a kan sanyaya iya aiki, don haka yana da kula da canji na yanayi zazzabi. Kamar yadda yawan zafin jiki na ruwa ya karu, ƙarfin sanyaya yana raguwa sosai, kuma yawan zafin jiki na matsakaicin matsakaicin matsakaici yana motsawa zuwa ƙananan zafin jiki.Lokacin da yawan zafin jiki ya wuce 30 ℃, saurin sanyi a cikin kewayon 500-600 ℃ yana raguwa a fili, wanda sau da yawa. take kaiwa zuwa ga ƙirƙira ba za a taurare, amma yana da kadan tasiri a kan sanyaya gudun a cikin kewayon martensite transformation.Lokacin da ruwa zafin jiki ya taso zuwa 60 ℃, da sanyaya. kudi zai ragu da kusan 50%.

3. Lokacin da ruwa ya ƙunshi iskar gas (kamar sabon ruwa), ko ruwan da aka gauraye da ƙazanta marasa narkewa, kamar mai, sabulu, laka, da sauransu, zai rage ƙarfin sanyaya, don haka amfani da kulawa ya kamata a ba da kulawa ta musamman.
Bisa ga yanayin sanyi na ruwa, ana iya amfani da ruwa H don quenching da sanyaya na carbon karfe forgings tare da kananan sashe size da sauki siffar.Quenching, dole ne kuma lura: kiyaye ruwan zafin jiki a kasa 40 ℃, mafi kyau tsakanin 15 zuwa 30 ℃. , da kuma kiyaye ruwa ko ruwa wurare dabam dabam, don halakar da ƙirƙira surface tururi membrane, kuma iya amfani da lilo workpiece a lokacin quenching (ko sa workpiece motsa sama da ƙasa) Hanyar zuwa juyar da membrane tururi, ƙara matakin sanyaya tsakanin 500-650 ℃, yanayin sanyaya, guje wa samar da maki mai laushi.

Daga: 168 jabun net