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 amakhala akuwira. siteji, ndi kuzirala liwiro ndi mofulumira kwambiri, zosavuta kuti martensitic kusintha liwiro ndi mofulumira kwambiri ndi kutulutsa kuchuluka kwa nkhawa mkati, chifukwa mu forging mapindikidwe kapena ngakhale akulimbana.

2, kutentha kwa madzi kumakhudza kwambiri mphamvu yoziziritsa, chifukwa chake 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 asakhale owumitsidwa, koma ali ndi mphamvu zochepa pa liwiro loziziritsa mumayendedwe a martensite transformation.Pamene kutentha kwa madzi kumakwezedwa mpaka 60 ℃, kuzirala mtengo udzatsika ndi 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 nembanemba nthunzi, kuwonjezera mlingo kuzirala pakati 500-650 ℃, zinthu kuzirala, kupewa kutulutsa mfundo zofewa.

Kuchokera: 168 forgings net