Quenching wata hanya ce mai mahimmanci a cikin maganin zafi na ƙarfe, wanda ke canza yanayin jiki da na inji na kayan ta hanyar sanyaya mai sauri. A lokacin aikin kashewa, aikin aikin yana ɗaukar matakai kamar dumama zafi mai zafi, rufi, da saurin sanyaya. Lokacin da workpiece aka sauri sanyaya daga high zafin jiki, saboda iyakance m lokaci canji, da microstructure na workpiece canje-canje, forming sabon hatsi Tsarin da danniya rarraba ciki.
Bayan quenching, aikin aikin yawanci yana cikin yanayin zafi mai girma kuma har yanzu bai yi cikakken sanyaya ba zuwa dakin da zafin jiki. A wannan lokaci, saboda bambancin zafin jiki mai mahimmanci tsakanin farfajiyar aikin aiki da yanayin, aikin aikin zai ci gaba da canja wurin zafi daga saman zuwa ciki. Wannan tsarin canja wurin zafi zai iya haifar da gradients na zafin jiki na gida a cikin kayan aikin, ma'ana cewa zazzabi a wurare daban-daban a cikin aikin ba iri ɗaya bane.
Saboda ragowar danniya da sauye-sauyen tsarin da aka haifar yayin aikin kashewa, ƙarfi da taurin aikin za a inganta sosai. Koyaya, waɗannan canje-canjen kuma na iya ƙara ɓarnawar kayan aikin kuma suna iya haifar da wasu lahani na ciki kamar fasa ko nakasawa. Saboda haka, wajibi ne a yi tempering jiyya a kan workpiece don kawar da saura danniya da kuma cimma da ake bukata yi.
Tempering shine tsarin dumama kayan aikin zuwa wani zafin jiki sannan kuma sanyaya shi, tare da manufar inganta microstructure da kaddarorin da aka samar bayan quenching. Yanayin zafin jiki gabaɗaya ya fi ƙasa da zafin jiki, kuma ana iya zaɓar zafin zafin da ya dace bisa halaye da buƙatun kayan. A al'ada, mafi girma da zafin jiki na zafin jiki, ƙananan taurin da ƙarfin aikin aikin, yayin da taurin da filastik ya karu.
Duk da haka, idan workpiece bai sanyaya zuwa dakin da zazzabi, watau har yanzu a wani babban zafin jiki, tempering jiyya ba m. Wannan shi ne saboda tempering na bukatar dumama da workpiece zuwa wani zazzabi da kuma rike shi na wani lokaci don cimma da ake so sakamakon. Idan workpiece ya riga ya kasance a babban zafin jiki, tsarin dumama da rufi ba zai yiwu ba, wanda zai haifar da sakamako na tempering ba saduwa da tsammanin.
Sabili da haka, kafin gudanar da jiyya na zafin jiki, ya zama dole don tabbatar da cewa aikin ya kasance cikakke sanyaya zuwa zafin jiki ko kusa da zafin jiki. Ta wannan hanyar ne kawai za a iya aiwatar da ingantaccen magani na tempering don daidaita aikin aikin aikin da kawar da lahani da damuwa da aka haifar yayin aiwatar da kashewa.
A takaice, idan quenched workpiece ba a sanyaya zuwa dakin zafin jiki, shi ba zai iya sha tempering magani. Tempering na bukatar dumama da workpiece zuwa wani zafin jiki da kuma kiyaye shi na wani lokaci, kuma idan workpiece ne riga a mafi girma zazzabi, da tempering tsari ba za a iya yadda ya kamata. Saboda haka, yana da matukar muhimmanci a tabbatar da cewa workpiece ne cikakken sanyaya zuwa dakin zafin jiki kafin tempering a lokacin zafi magani tsari don tabbatar da cewa workpiece iya cimma da ake bukata yi da kuma ingancin.
Lokacin aikawa: Dec-29-2023
