Inqubo yokukhiqiza ikhoyili yensimbi eshisayo iyisixhumanisi esibalulekile ekukhiqizeni insimbi. Ngokuyinhloko yenza i-billet yensimbi ibe yisimo sepuleti esidingekayo ngokusebenzisa izinga lokushisa eliphezulu. Okulandelayo izinyathelo zayo eziyinhloko:
Ukulungiswa Kwempahla Engahluziwe
Sebenzisa i-billet eqhubekayo yokuphonsa noma i-billet yokuqala njengempahla eluhlaza, futhi ubukhulu be-billet ngokuvamile bungu-150-300mm.
I-billet ihlanzwa phezulu (njengokuhlanza ilangabi noma ukugaya ngomshini) ukuze kususwe isikali se-oxide kanye nokukhubazeka ukuze kuqinisekiswe ikhwalithi yokugoqa.
Ukushisisa
I-billet ithunyelwa esithandweni sokushisa se-step-beam futhi sishiswe ku-1100-1300 ℃ ukwenza i-billet ifinyelele izinga lokushisa eliqinisekisayo futhi ithuthukise ipulasitiki.
Lawula isikhathi sokushisisa nokufana kwezinga lokushisa ukuze ugweme ukushisa ngokweqile noma izinga lokushisa elinganele.
I-Rough Rolling
Ugqinsi lwe-billet luncishiswa lube ngu-30-50mm ngokusebenzisa isigayo esigoqayo esingahlehlakele (njengesigayo esinamaroll amabili noma ama-four-roll) ukuze kwakheke i-billet emaphakathi.
Ukwehliswa kwamanzi anengcindezi ephezulu kungenziwa ngemva kokugingqa ngakunye ukuze kususwe ungqimba lwe-oxide engaphezulu.
Eqeda Ukugingqa
I-billet ephakathi ingena emshinini wokuqedela (imvamisa u-6-7 we-four-roll noma ama-six-roll), futhi kancane kancane incishiswe ibe ugqinsi oluqondiwe (njengo-1.2-25mm) ngokugoqeka okuqhubekayo.
I-AGC (ukulawula ukujiya okuzenzakalelayo) kanye nohlelo lokulawula ukuma kwepuleti kusetshenziswa ukuze kuqinisekiswe ukunemba kobukhulu kanye nokuqondile komumo wepuleti.
Ama-roller adinga ukupholiswa futhi agcotshwe ngesikhathi sokugoqa ukuze avimbele ukuguga nokuguga.
Ukupholisa
Isistimu yokupholisa i-laminar isetshenziselwa ukupholisa ngokushesha umucu wensimbi ukusuka kumazinga okushisa okugcina (cishe ama-800℃) kuya kuzinga lokushisa legumbi ngokulawula umthamo wamanzi nezinga lokupholisa (elifana no-30-50℃/s).
Inqubo yokupholisa ithinta ngokuqondile i-microstructure (njenge-ferrite ne-pearlite ratio) kanye nezakhiwo zemishini zekhoyili yensimbi.
Ukugoqa
Umucu wensimbi ugoqwa ube ikhoyili yensimbi ngokusebenzisa i-pinch roller nekhoyili, futhi ukushuba kulawulwa ku-100-500N/mm² ukuze kuqinisekiswe ukuthi umumo wekhoyili uqinile futhi ayikho ikhoyili exegayo.
Izinga lokushisa lamakhoyili livamise ukulawulwa ku-550-700℃ ukuze kuthuthukiswe ukusebenza kahle.
Ukwelashwa Okulandelayo
Ukwelashwa kwendawo: ukuchotshozwa ukuze kukhishwe isikali se-oxide, noma ukugalela, i-aluminium plating nezinye izindlela zokwelapha zokumboza.
Anealing: thuthukisa i-ductility yezinto (njengokuhlanganisa kabusha i-annealing ngaphambi kokugoqa okubandayo).
Ukushelela: ukususa iplathifomu yesivuno kanye nokuthuthukisa ukuphela kwendawo ngokugingqika kwesilinganiso esincane sokunciphisa.
Ukuhlolwa kwekhwalithi nokupakishwa: hlola usayizi, izakhiwo zemishini kanye nekhwalithi yendawo, kanye nokugoqa, inqwaba kanye nokumaka ngokwezidingo zekhasimende.