Annealing wa chitsulo chokoka ozizira
Kuwotcha kwachitsulo chozizira kumagwiritsidwa ntchito popanga njira yoyambira yochizira kutentha.Ambiri mbali makina ndi uinjiniya, nkhungu akhakula akhoza kuthetsa nkhawa mkati ndi zikuchokera kuponyera, forging ndi weldment inhomogeneity;akhoza kusintha ndi kusintha zitsulo makina katundu, ndi kukonzekera gulu ndondomeko yotsatira kupanga pambuyo annealing.Kuchita kwa magawo ofunikira, osafunikira komanso ma castings wamba, ma weldments, annealing angagwiritsidwe ntchito ngati chithandizo chomaliza cha kutentha.

Kutsekemera kwachitsulo kumatenthedwa ndi kutentha koyenera, kumagwira nthawi inayake, ndiyeno kumakhazikika pang'onopang'ono kuti muyandikire njira ya kutentha kwa bungwe loyenera.Cholinga cha annealing ndi yunifolomu mankhwala zikuchokera, kukonza makina katundu ndi ndondomeko ntchito, kuthetsa kapena kuchepetsa nkhawa ndi kupanga bungwe kukonzekera komaliza kutentha kutentha kwa zigawo.Njira ya annealing ndi mitundu yambiri yazitsulo, kutentha kwa kutentha kungagawidwe m'magulu awiri: imodzi ili mu annealing pamwamba pa kutentha kwakukulu (Ac3 kapena Ac1), yomwe imadziwikanso kuti gawo losintha recrystallization annealing.Kuphatikizira zotsekera kwathunthu, zotsekeredwa kwathunthu, zotenthetsera zam'madzi, kutsekereza kwa mpira ndi kufalikira;ina ili pa kutentha kwakukulu (Ac1) pambuyo pa annealing, yomwe imadziwikanso kuti kutsika kwa kutentha.Kuphatikizira recrystallization annealing, kupsinjika ndi dehydrogenation annealing.Njira yozizirira imatha kugawidwa m'kuzizira kosalekeza kwa annealing ndi isothermal annealing.

Kuzimitsa chitsulo chokoka chozizira
Kuzimitsa chitsulo chozizira ndikofunikira kwambiri pakuwongolera kutentha, kumagwiritsidwa ntchito kwambiri.Kuzimitsa kumatha kusintha kwambiri mphamvu ndi kuuma kwachitsulo.Ngati zikugwirizana ndi kutentha kutentha kungathe kuthetsa kapena kuchepetsa nkhawa yozimitsa, komanso mphamvu, kuuma ndi kulimba ndi, kukwaniritsa zofunika zosiyanasiyana.Choncho, kuzimitsa ndi kutentha sikungasiyanitsidwe ndi njira ziwiri zochizira kutentha.Kuzimitsa zitsulo kumatenthedwa pamwamba pa malo ovuta kwambiri kuposa kuzizira kozizira kwambiri (Vc) mu zotsekemera pambuyo pozizira, kuti mutenge kutentha kwa martensite kapena kuchepetsa bainite.