1, mu gawo lililonse la austenitic isothermal kusintha chithunzi, mwachitsanzo, za 500-600 ℃, madzi mu nthunzi filimu siteji, ndi kuzirala liwiro si mofulumira mokwanira, amene nthawi zambiri amatsogolera ku "mfundo zofewa" zopangidwa ndi Kuzizira kosagwirizana komanso kuthamanga kosakwanira kozizira kwa forging.Mu makina osinthika a martensitic, ndiye kuti, pafupifupi 300-100 ℃, madzi ali mu siteji yowira, liwiro lozizira ndi lothamanga kwambiri, zosavuta kupanga liwiro la kusintha kwa martensitic ndikuthamanga kwambiri. kutulutsa kupsinjika kwakukulu kwamkati, zomwe zimapangitsa kuti pakhale kupindika kapena kusweka.

2, kutentha kwa madzi kumakhudza kwambiri kuziziritsa, kotero kumakhala tcheru ndi kusintha kwa kutentha kozungulira.Pamene kutentha kwa madzi kumawonjezeka, mphamvu yoziziritsira imachepetsa kwambiri, ndipo kutentha kwa kutentha kwapamwamba kwambiri kumapita ku kutentha kochepa. Kumatsogolera ku forging kuti asaumitsidwe, koma ali ndi mphamvu pang'ono pa liwiro loziziritsa mumtundu wa martensite transformation.Pamene kutentha kwa madzi kumakwezedwa mpaka 60 ℃, kuzirala kudzachepa pafupifupi 50%.

3, pamene madzi ali ndi mpweya wochuluka (monga madzi atsopano), kapena madzi osakaniza ndi zosafunika zosasungunuka, monga mafuta, sopo, matope, ndi zina zotero, zidzachepetsa kwambiri mphamvu yake yozizira, kotero ntchito ndi kasamalidwe ziyenera kukhala chidwi chapadera.
Malinga ndi kuzirala makhalidwe madzi, madzi H angagwiritsidwe ntchito kuzimitsa ndi kuzirala wa carbon zitsulo forgings ndi yaing'ono gawo kukula ndi shape.Quenching yosavuta, ayeneranso kuzindikira: kusunga madzi kutentha m'munsimu 40 ℃, yabwino pakati pa 15 mpaka 30 ℃ , ndi kusunga madzi kapena madzi kufalitsidwa, kuwononga forging pamwamba nthunzi nembanemba, komanso angagwiritse ntchito pachimake workpiece pa quenching (kapena kupanga workpiece chimayenda mmwamba ndi pansi) njira kusokoneza nthunzi nembanemba, kuwonjezera mlingo kuzirala pakati 500-650 ℃, zinthu kuzirala, kupewa kutulutsa mfundo zofewa.

Kuchokera: 168 forgings net