Ama-forging amakhulu amahhala kanye nensimbi ephezulu ye-alloy forgings ngokuyinhloko yenziwe nge-ingot yensimbi, engahlukaniswa ibe ingot enkulu kanye ne-ingot encane ngokusho kokucaciswa kwensimbi yensimbi. Ngokuvamile isisindo sikhulu kuno-2t ~ 2.5t, ububanzi bukhulu kuno-500mm ~ 550mm ingot ebizwa ngokuthi i-ingot enkulu, enye ingot encane.

Cindezela i-forging ingot forging esetshenziswa ngaphambi kwezinga lokushisa lesithando sokushisa lapho ukulayisha kuhlukaniswa ama-ingots abandayo (ngokuvamile ngokwezinga lokushisa legumbi) kanye ne-ingot eshisayo (ngokuvamile enkulu kunezinga lokushisa legumbi) kuma-ingots abandayo angaphansi kuka-500 ℃ ipulasitiki yokufudumeza impofu, futhi yakhiwa i-ingot in crystallization process kanye nokucindezeleka okusalayo kanye nesiqondiso sokucindezeleka kokushisa, zonke izinhlobo zokukhubazeka kwezicubu zizobangela ukuhlushwa kokucindezeleka, uma ukucaciswa kokushisa okungalungile, kulula ukubangela ukuqhekeka. Ngakho-ke, esigabeni sokushisa esiphansi sokushisa kwe-ingot ebandayo, izinga lokushisa lokulayisha kanye nesivinini sokushisa kufanele libe nomkhawulo.
I-Forging i-ingot enkulu enezincazelo eziningi zokushisa, ngenxa yobukhulu bayo besigaba esikhulu, phakathi nendawo yokucindezeleka okukhulu kakhulu, kuhlanganiswe namandla e-ingot aphansi, i-plasticity empofu, ngakho-ke ukucindezeleka kokushisa okukhangayo kulula ukuqhekeka lapho kushisa, ngakho-ke, izinga lokushisa lomlilo alikwazi ukuba phezulu kakhulu, isivinini sokushisa kufanele futhi senziwe kancane. Isibonelo, ngensimbi yesakhiwo se-carbon structural steel ne-alloy structural steel, izinga lokushisa lomlilo livamise ukuba ngu-350℃ ~ 850℃, usayizi we-ingot mncane, izinga lokushisa lomlilo likhulu, kanye nokwahlukanisa. Ngensimbi ye-alloy, njengensimbi yesivinini esikhulu, insimbi ephezulu ye-chromium kulula ukuqhekeka lapho ishiswa, izinga lokushisa lomlilo kufanele lilawulwe ku-400 ℃ ~ 650 ℃. Uma izinga lokushisa lingaphezulu kuka-850℃, ingot ingashiswa ngesivinini esisheshayo, kodwa hhayi ngokushesha kakhulu, ukugwema ukwenzeka kokufogina ngaphakathi nangaphandle umehluko wezinga lokushisa mkhulu kakhulu. Isibonelo, ukufakwa kwensimbi yesakhiwo sekhabhoni kanye nensimbi yesakhiwo sealloy kuvumela umehluko wezinga lokushisa phakathi kuka-50℃ no-100℃.
Lapho ushisa i-ingot yensimbi encane, ngenxa yobukhulu bayo besigaba esincane, ukucindezeleka okusele kanye nokucindezeleka kwezinga lokushisa okubangelwa ukushisa akukukhulu, isivinini sokushisa singashesha, ngakho-ke, ngensimbi ye-carbon cable kanye ne-low alloy steel ingot, ingxenye ye- ngokushesha Ukushisisa kusetshenziselwa ukukhanga. Ukuze uthole ingot yensimbi ene-alloy encane, ngenxa yokushisa kwayo okuphansi kokushisa okushisayo akubi kahle, futhi ukushisa okukhulu kwe-ingot okubandayo, kusebenzisa ukucaciswa kokushisa okunezigaba eziningi, izikhala zokubumba zingafakwa ku-700 ℃ ~ 1000 ℃ esithandweni sokushisa.
Ukuze unciphise isikhathi sokushisa futhi wonge uphethiloli, i-ingot enkulu esuka endaweni yokusebenzela yensimbi ngemva kokukhumula, ithunyelwe ngokuqondile endaweni yokusebenzela yokushisisa isithando somlilo, lolu hlobo lwensimbi olubizwa ngokuthi i-hot ingot. Lapho i-ingot eshisayo ishaja, izinga lokushisa elingaphezulu lika-550 ℃ ~ 650 ℃, ngenxa ye-ingot eshisayo esesimweni esihle sepulasitiki, ukucindezeleka kwezinga lokushisa kuncane, ngakho-ke izinga lokushisa lomlilo lingathuthukiswa, kuye ngokuthi ubukhulu be-ingot nezinto ezibonakalayo zihlukile ibe esithandweni esivamile esingu-800 ℃ ~ 1000 ℃, izinga lokushisa lomlilo elincane le-ingot lingaba angenamkhawulo, ngemva kokushaja kungaba esinye sesivinini esikhulu kunazo zonke sokushisa.