1) mu chithunzi cha austenite isothermal kusintha kwa dera, ndiko kuti, pafupifupi 500-600 ℃, madzi mu siteji ya filimu ya nthunzi, kuzizira sikuthamanga mokwanira, nthawi zambiri kumayambitsa kuzizira kosiyana komanso kuzizira kosakwanira.liwiro forgingsndi mapangidwe a "soft point".Mu martensite transformation system, ndiye kuti, pafupifupi 300-100 ℃, madzi ali mu siteji yowira, kuzizira kumathamanga kwambiri, kosavuta kupanga martensite kusintha liwiro ndi mofulumira kwambiri. ndi kutulutsa kupsyinjika kwakukulu kwamkati, zomwe zimapangitsa kuti pakhale kusokoneza komanso kusokoneza.

2) Kutentha kwamadzi kumakhudza kwambiri kuziziritsa, kotero kumakhala kovutirapo ndi kusintha kwa kutentha kozungulira. Pamene kutentha kwa madzi kumakwera, mphamvu yoziziritsa imatsika kwambiri, ndipo kutentha kwa kutentha kwakukulu kumapita ku kutentha kochepa. kumabweretsa kuumitsa kwazojambula, koma imakhala ndi zotsatira zochepa pa mlingo wozizira mumtundu wa martensite transformation.Pamene kutentha kwa madzi kumakwera kufika ku 60 ℃, kuzizira kumatsika pafupifupi 50%.

pamene madzi ali ndi mpweya wochuluka (monga madzi ongosinthidwa kumene), kapena madzi osakanikirana ndi zonyansa zosasungunuka, monga mafuta, sopo, matope, ndi zina zotero, zidzachepetsa kwambiri mphamvu yake yoziziritsa, choncho chisamaliro chapadera chiyenera kuperekedwa ku ntchito ndi kasamalidwe. .
Malinga ndi kuzirala kwa madzi, madzi nthawi zambiri H angagwiritsidwe ntchito kuzimitsa mpweyazopangira zitsulondi kukula kwa gawo laling'ono ndi shape.Quenching yosavuta, ayeneranso kuzindikira: kusunga madzi kutentha m'munsimu 40 ℃, yabwino pakati pa 15 mpaka 30 ℃, ndi kusunga madzi kapena kufalitsidwa madzi, kuwononga forging pamwamba nthunzi nembanemba, komanso akhoza kugwiritsa ntchito swing. workpiece pakuzimitsa (kapena kupanga workpiece kusuntha mmwamba ndi pansi) njira kusokoneza nthunzi nembanemba, kuwonjezera mlingo kuzirala pakati 500-650 ℃, ndi kuzirala, kupewa kutulutsa mfundo zofewa.