Menene quenching?
Quenching magani tsari ne na maganin zafi wanda karfe tare da abun ciki na carbon na 0.4% yana mai zafi zuwa 850T kuma yana sanyaya cikin sauri.Ko da yake quenching yana ƙara taurin, yana kuma ƙara brittleness.Kafofin watsa labarun da aka fi amfani da su na kashe wuta sun haɗa da ruwan gishiri, ruwa, mai ma'adinai, iska, da dai sauransu. Quenching na iya inganta taurin da kuma sa juriya na kayan aikin ƙarfe, kuma ana amfani da shi sosai a cikin kayan aikin daban-daban, ƙirar ƙira, kayan aikin aunawa, da sassa masu jurewa (kamar su). gears, rollers, carburized sassa, da dai sauransu).Ta hanyar haɗa quenching tare da zafin jiki a yanayin zafi daban-daban, ƙarfin da ƙarfin ƙarfin ƙarfe na iya ingantawa sosai, kuma ana iya samun daidaituwa tsakanin waɗannan kaddarorin don saduwa da buƙatun amfani daban-daban.
Menene manufar kashe karfe?
Manufar quenching ita ce ta canza austenite da ba a sanyaya ba zuwa martensite ko bainite don samun tsarin martensite ko bainite, sannan kuma yin aiki tare da zafin jiki a yanayin zafi daban-daban don inganta ƙarfin ƙarfi, taurin, juriya, ƙarfin gajiya, da taurin ƙarfe, ta haka ne saduwa da daban-daban bukatun amfani na daban-daban inji sassa da kayan aiki.Hakanan yana yiwuwa a haɗu da abubuwan musamman na zahiri da sinadarai na wasu ƙarfe na musamman, kamar feromagnetism da juriya na lalata, ta hanyar quenching.
High mita quenching na S45C karfe
1. High mita quenching ne mafi yawa amfani da surface quenching na masana'antu karfe sassa.Hanya ce ta maganin zafi na ƙarfe wanda ke haifar da takamaiman adadin kuzarin da aka jawo akan saman kayan aikin samfurin, da sauri yana dumama saman ɓangaren, sannan ya kashe shi da sauri.Induction kayan aikin dumama yana nufin kayan aikin injin da ke haifar da dumama kayan aiki don kashe ƙasa.Ainihin ka'idar dumama shigar: Ana sanya kayan aikin samfurin a cikin inductor, wanda yawanci bututun jan karfe ne mai fa'ida tare da mitar shigarwa ko babban mitar AC (1000-300000Hz ko sama).Ƙirƙirar filin maganadisu mai jujjuyawar yana haifar da halin halin yanzu na mitar guda ɗaya a cikin kayan aikin.Wannan halin yanzu da aka jawo ana rarrabawa ba daidai ba a saman, yana da ƙarfi a saman, amma yana da rauni a ciki, yana gabatowa 0 a tsakiya.Ta amfani da wannan fata sakamako, surface na workpiece za a iya da sauri mai tsanani, da kuma a cikin 'yan seconds, da surface zafin jiki za a iya sauri ya karu zuwa 800-1000 ℃, tare da wani karamin karuwa a tsakiyar zafin jiki.Mafi girman taurin ƙarfe 45 bayan babban mitar quenching na iya kaiwa HRC48-53.Bayan babban-mita quenching, juriya na lalacewa da kuma amfani zai karu sosai.
Bambanci tsakanin karfe 2.45 da aka kashe da wanda ba a kashe ba: Akwai babban bambanci tsakanin karfe 45 da aka kashe da wanda ba a kashe ba, musamman saboda karfen da aka kashe da kuma mai zafi na iya samun karfin tauri da isasshen ƙarfi.Taurin karfe kafin quenching da tempering yana kusa da HRC28, kuma taurin bayan quenching da tempering yana tsakanin HRC28-55.Gabaɗaya, sassan da aka yi da irin wannan nau'in ƙarfe suna buƙatar ingantattun kayan aikin injiniya, wato, don kiyaye ƙarfi mai ƙarfi yayin da suke da kyawawan filastik da tauri.
Lokacin aikawa: Nuwamba-23-2023