Quenching, wanda kuma ake kira hardening shine tsarin dumama sannan kuma sanyaya karfe (ko sauran gami) a cikin sauri mai girma wanda ake samun karuwar taurin, ko dai a sama ko a ko'ina.Game da vacuum Quenching, ana yin wannan tsari ne a cikin tanderun da ba za a iya amfani da shi ba wanda za a iya kaiwa ga zafin jiki har zuwa 1,300 ° C.Hanyoyin quenching zasu bambanta dangane da kayan da ake bi da su amma kashe iskar gas ta amfani da nitrogen ya fi yawa.
Vacuum gas quenching:
A lokacin ƙurawar iskar gas, abu yana mai zafi idan babu iskar oxygen ta hanyar haɗuwa a cikin matsakaicin iskar gas (N₂) da / ko radiation mai zafi a cikin matsi.Karfe yana taurare tare da rafi na nitrogen, ta yadda za'a iya tantance ƙimar sanyaya ta zaɓin wuce gona da iri.Dangane da siffar workpiece yana yiwuwa kuma zabar shugabanci da lokacin busa nitrogen.Ana gudanar da ingantawa na lokaci da sarrafa zafin jiki na karfe yayin aiwatarwa tare da amfani da ma'aunin ma'aunin zafi da sanyio wanda za'a iya sanya shi a kan kayan aiki a cikin ɗakin dumama.Karfe wanda ke da zafi da ake bi da shi a cikin tanderun injin yana samun ƙayyadaddun kaddarorin ƙarfi da tauri a cikin duka ɓangaren giciye, ba tare da lalata ƙasa ba.Hatsi na Austenitic yana da kyau kuma ya dace da ƙa'idodin duniya.
A zahiri duk abin da ke da ban sha'awa na fasaha na ƙarfe na ƙarfe, irin su bakin ƙarfe na bazara, ƙarfe mai aikin sanyi, ƙwanƙarar ƙarfe da zafin jiki, ƙarfe mai ɗaukar ƙarfi, ƙarfe mai zafi da kayan aikin ƙarfe, da babban adadin manyan ƙarfe na ƙarfe da simintin gyare-gyare. - baƙin ƙarfe gami, za a iya taurare ta wannan hanya.
Vacuum Oil Quenching
Vacuum Oil quenching yana sanyaya kayan zafi ta hanyar mai na Vacuum. Kamar yadda canja wurin cajin ke faruwa a karkashin kariya ta iska ko inert-gas bayan mun shafe tanderun, ɓangaren ɓangaren yana kiyaye kullun har sai an nutsar da shi gaba daya a cikin mai.Kariyar saman yana da kamanni sosai ko quenching a cikin mai ko gas.
Babban fa'ida idan aka kwatanta da na al'ada na yanayi mai-quenching mafita shi ne daidai iko da sanyaya sigogi.Tare da tanderun wuta, yana yiwuwa a canza daidaitattun sigogi na kashewa - zafin jiki da tashin hankali - da kuma canza matsa lamba sama da tanki mai kashewa.
Canza matsa lamba a sama da tanki zai haifar da bambanci a cikin matsa lamba a cikin wanka mai mai, wanda ke canza yanayin ingantaccen sanyaya mai da aka ayyana a matsa lamba na yanayi.Lallai, yankin tafasa shine lokacin lokacin da saurin sanyaya ya fi girma.Canji a matsa lamba mai zai canza tururi saboda zafi na kaya.
Rage matsa lamba zai kunna abubuwan ban mamaki na vaporization, wanda ya fara lokacin tafasa.Wannan zai ƙara ƙarfin sanyi na quenching ruwa da inganta ƙarfin ƙarfin ƙarfi tare da yanayin yanayi.Duk da haka, ƙaƙƙarfan ƙarni na tururi na iya haifar da sabon abu kuma ya haifar da nakasu.
Ƙaruwar matsa lamba a cikin mai yana hana haɓakar tururi kuma yana jinkirta ƙaura.Kumbun ya manne a sashin kuma ya fi yin sanyi iri ɗaya amma ƙasa da ƙarfi.Rushewar mai a cikin injin ya fi daidaituwa kuma yana haifar da ƙarancin murdiya.
Vacuum water quenching
Tsari kamar injin mai quenching, shine mafita mafi kyau don taurara zafin zafin aluminum, titanium ko wasu kayan da ke buƙatar sanyaya a isasshe cikin sauri.
Lokacin aikawa: Mayu-07-2022