Iyo crankshaft simbi C38N2 rudzi rutsva rwe microalloyed isina kudzimwa uye yakadzikama simbi, iyo inotsiva yakadzimwa uye yakadzikama simbi kugadzira Renault injini crankshafts. Kuremara kwebvudzi repamusoro ndiko kukanganisa kwakajairika muhupenyu hwe crankshafts, kunyanya kukonzerwa nekuremara kwesimbi senge pores uye kusununguka muingot yepakutanga ichisvinwa kubva pakati kusvika kumusoro panguva yekufa kwekugadzira. Kuvandudza mhando yepakati peiyo crankshaft zvinhu zvave chinangwa chakakosha mukutenderera. Nekudzikisa kupfava kwepasi panguva yekutenderedza, uye kukurudzira deformation yepakati inzira yakanaka yekuregedzera uye shrinkage yepakati peiyo welded cast cast.

Nyanzvi kubva kuYunivhesiti yeSainzi neTekinoroji Beijing dzakadzidza mhedzisiro yemamiriro ekuita austenitizing, deformation tembiricha, deformation rate, deformation huwandu, uye kupfuudza nguva pane isina kudzimwa uye yakadzikama simbi C38N2 rolling ye crankshafts kuburikidza nemafuta ekufananidza kuyedza, optical metallography uye kutapurirana. electron microscopy kuongorora. Mutemo wepesvedzero weiyo static recrystallization vhoriyamu chikamu uye yakasara strain rate pakati pevanopfuura.

Mhedzisiro yekuedza inoratidza kuti nekuwedzera kwekushisa kwe deformation, deformation rate, deformation chiyero kana nguva yepakati pakati pevapfuura, chikamu chevhoriyamu che static recrystallization chinowedzera zvishoma nezvishoma, uye kusara kwemaitiro ekupfuura kunoderera. ; Iyo yepakutanga austenite saizi yezviyo inowedzera, uye iyo static recrystallization vhoriyamu chikamu chinoderera, asi shanduko haina kukosha; pazasi pe1250 ℃, neaustenitizing tembiricha ichiwedzera, iyo static recrystallization vhoriyamu chikamu hachidzike zvakanyanya, asi Pamusoro pe1250 ℃, kuwedzera kwekupisa kweaustenitizing zviri pachena kunoderedza static recrystallization vhoriyamu chikamu. Kuburikidza nemutsara wakakodzera uye madiki masikweya nzira, iyo yemasvomhu modhi yehukama pakati peiyo static recrystallization vhoriyamu chikamu uye akasiyana deformation process paramita inowanikwa; iyo iripo yasara strain rate mathematical model inodzokororwa, uye yakasara strain rate mathematical model ine strain rate term inowanikwa. Kukwana kwakanaka.