Normalizing ndi chithandizo cha kutentha chomwe chimapangitsa kulimba kwachitsulo. Mukatenthetsa zida zachitsulo mpaka 30-50 ℃ pamwamba pa kutentha kwa Ac3, zigwireni kwakanthawi ndikuziziritsa mung'anjo. Khalidwe lalikulu ndilakuti kuzizira kumathamanga kwambiri kuposa kuziziritsa koma kutsika kuposa kuzimitsa. Pa normalizing, crystalline njere zitsulo akhoza woyengedwa pang'ono mofulumira kuzirala ndondomeko, amene osati amakwaniritsa mphamvu zokhutiritsa, komanso kwambiri kusintha kulimba (AKV mtengo) ndi amachepetsa chizolowezi zigawo kusweka Pambuyo normalizing, mabuku katundu makina. mbale zina zazitsulo zotsika zotentha, zopangira zitsulo zotsika, ndi zoponyera zimatha kusintha kwambiri, komanso ntchito yodulira imathanso kupitilizidwa.
Normalizing makamaka ntchito zitsulo workpieces. Kukhazikika ndi kuyika zitsulo zonse ndizofanana, koma kuzizira kumakhala kokwera pang'ono ndipo mawonekedwe ang'onoang'ono ndi abwino. Zitsulo zina zokhala ndi kuzizira kotsika kwambiri zimatha kusintha austenite kukhala martensite pozizira mumpweya. Mankhwalawa sakhala okhazikika ndipo amatchedwa air cooling quenching. M'malo mwake, zida zina zazikulu zopangira zitsulo zopangidwa ndi zitsulo zokhala ndi kuzizira kwambiri sizingathe kupeza martensite ngakhale zitazimitsidwa m'madzi, ndipo kuzimitsa kwake kuli pafupi ndi kukhazikika. Kuuma kwachitsulo pambuyo pa normalizing ndipamwamba kuposa pambuyo pa annealing. Pamene normalizing, si koyenera kuziziritsa workpiece mu ng'anjo ngati annealing, amene amatenga nthawi yochepa ng'anjo ndipo ali mkulu kupanga dzuwa. Chifukwa chake, popanga, normalizing imagwiritsidwa ntchito m'malo mwa annealing momwe mungathere. Kwa chitsulo chochepa cha carbon chokhala ndi mpweya wocheperapo kuposa 0,25%, kuuma komwe kumapezeka pambuyo pokhazikika kumakhala kochepetsetsa komanso kosavuta kudula kusiyana ndi annealing. Normalizing nthawi zambiri amagwiritsidwa ntchito kudula ndi kukonzekera ntchito. Pakuti sing'anga mpweya zitsulo ndi mpweya zili 0.25-0.5%, normalizing angathenso kukwaniritsa zofunika kudula processing. Pazigawo zopepuka zopangidwa ndi chitsulo chamtunduwu, normalizing ingagwiritsidwenso ntchito ngati chithandizo chomaliza cha kutentha. Normalizing mkulu mpweya chida zitsulo ndi kubala zitsulo ndi kuthetsa maukonde carbides mu dongosolo ndi kukonzekera dongosolo periodization annealing.
The chomaliza kutentha mankhwala a mbali wamba structural, chifukwa bwino mabuku mawotchi katundu workpiece pambuyo normalizing poyerekeza ndi annealed boma, angagwiritsidwe ntchito ngati chomaliza kutentha mankhwala ena wamba structural mbali ndi otsika nkhawa ndi ntchito zofunika, kuchepetsa njira. , kupulumutsa mphamvu, ndi kupititsa patsogolo kupanga bwino. Kuphatikiza apo, pazigawo zina zazikulu kapena zovuta zowoneka bwino, pakakhala chiwopsezo cha kusweka pakuzimitsa, kukhazikika nthawi zambiri kumatha m'malo ozizimitsa ndi kutentha ngati chithandizo chomaliza cha kutentha.
Imelo:oiltools14@welongpost.com
Grace Ma
Nthawi yotumiza: Oct-23-2023
