Dildilaaca rogan ayaa saamayn doona heerka badeecada dhammaatay wax yar ka dib marka la rogo.Kordhi wakhtiga nadiifinta billet, labadaba waxyeelo weyn.Heerkulku waa aag jajaban oo ah 700-900 ℃.Sababta dildilaaca dusha hoose waa 1050-1100 ℃, dildilaaca transverse on dusha sababta waa dusha billet by qayb weyn oo toosinta stress toosan.Niobium nitride ee xudduudaha hadhuudhka austenite waxay yaraynaysaa xoogga isku xidhka, roobabka xadka hadhuudhka.Halkaa marka ay marayso qaybta qalooca ee isgoysyada jeexjeexyada arc ayaa liidata, taasoo keentay dildilaacyo dusha hoose ah.Dildilaaca toosan iyo kiimikaad ka kooban, caaryada qaboojinta heerkulka biyaha, qalabka caaryada, ka kooban kiimikaad ee slag, tuurista joogtada ah ee mashiinka saxda ah nidaamka qaboojinta sare ee la xiriira.Tallaabooyinka ka hortagga ee la xidhiidha:
1. Xakamaynta ka kooban birta.Isku day inaad ka hortagto wC waa 0.12% -0.16% D36 maadada kaarboon birta ee habka xakamaynta dhalada iyadoo loo eegayo xadka sare.Waxay si wax ku ool ah u yarayn kartaa dildilaaca.Aagga falcelinta ee Peritectic.
2. Xakamaynta heerkulka crystallization heerkulka caaryada joogtada ah, heerkulka caaryada isbedelaya habka wax ku ool ah si loo hagaajiyo waa in la kordhiyo caaryada qaboojinta biyaha preheating qalab.Xakamaynta dhacdooyinka dildilaaca marka cimiladu isbedesho.Waxa kale oo la isticmaali karaa ka dib shubista iyo shubista kasta oo aan furnayn marka heerkulka biyuhu ka hooseeyo 20 ℃ caaryada biyaha qaboojiyaha, si loo hubiyo in heerkulka moodada caaryada shubay.
3. Hagaajin cabbirada habka crystallization si aad u hagaajiso qiyaasta biyaha cabbirka caaryada, marka loo eego dhumucda naxaasta ee kala duwan.Adigoo hagaajinaya qadarka biyaha si loo hubiyo in heerarka kala duwan ee isku mid ah xoojinta qaboojinta caaryada.
4. Si loo hagaajiyo nidaamka qaboojinta sare, hagaajinta heerkulka toosan ee aagga, adoo hagaajinaya nidaamka qaboojinta sare.Ka-hortagga toosinta biilka aagga jajaban, waxay si fiican u yareeyn kartaa suurtogalnimada dildilaaca jeexjeexa.
5. Nadiifinta muuqaalka strand iyo ka saarida geesaha maro-saabka ah, waa hab wax ku ool ah oo lagu nadiifiyo hubinta tayada ugu dambeysa ee billet-ka.Waxaan hagaajin karnaa tayada ugu dambeysa ee suufka.