Idatha i-induction yokushisisa isithando somlilo edinga ukuyilawula ekufongeni

1. Inhloso yezinga lokushisa lokuqala lokubunjwa kwesithando sokushisa sokungeniswa ukushisisa okungenalutho ukukhulisa izinga lokushisa elingenalutho elihlanganisiwe, ukuze izinhlanganisela zekhabhoni ne-nitrogen ye-V, Nb kanye ne-Ti zincibilike kancane kancane zibe yi-austenite, kanye nenkulu inani le-microalloyed carbon ne-nitrogen compounds encibilikisiwe Ukuwa ngesikhathi sokupholisa kungathuthukisa amandla nobulukhuni bensimbi; ngakolunye uhlangothi, njengoba izinga lokushisa likhuphuka, okusanhlamvu kwe-austenite kuyakhula, isakhiwo sihlehla, futhi ukuqina kuncipha.

2. Inhloso yezinga lokushisa lokugcina lokubumba lokushisisa okungenalutho esithandweni sokushisa sokungeniswa ukulawula kahle izinga lokushisa eliphansi lokugcina, elingakhuphula izinga lokuphuka okusanhlamvu, kukhuphule inani lemingcele yokusanhlamvu, kukhiqize ngempumelelo imvula ebangelwa yi-deformation-induced. futhi ihlakaze izinhlayiya, futhi ngesikhathi esifanayo, amandla okushayela kabusha amakristalu amancane. , ukucolisiswa okusanhlamvu, kuyasiza ekuthuthukiseni ukuqina.

3. Inani lokuguquguquka kanye nezinga lokuguquguquka lokushisisa okungenalutho kwesithando somlilo sokungeniswa nakho kungokokuhlukaniswa kwezinhlamvu ze-austenite zokungenalutho, kanye nokwenziwa kabusha kwezinhlamvu ze-austenite ezimahhadla zibe izinhlamvu ezinhle. Isakhiwo sokuguqulwa kwesigaba esihle se-ferrite sisakazwa ngokulinganayo esakhiweni, esizuzisa ukuthuthukisa ukuqina kwensimbi.

4. Izinga lokupholisa langemva kwe-forging le-heated blank esithandweni sokushisa sokungeniswa linethonya elikhulu ekusebenzeni kwe-forging, okuyisihluthulelo sokuqinisekisa ukwakheka kwe-metallographic kanye nezakhiwo zemishini ze-forging. Njengoba ukuguqulwa kwesigaba phakathi nenqubo yokupholisa kuyinkimbinkimbi, ukupholisa kwemvelo akukwazi ukulawula ngempumelelo ukungacimi kanye nokushisa. Izinga lensimbi kufanele linikezwe idivayisi yokupholisa engathinteki ngenkathi. Eqinisweni, ukulawulwa kokupholisa ku-800 ° C ~ 500 ° C kunomthelela emandleni nasekuqineni kwensimbi, futhi ukupholisa ngaphandle kwalolu banga akubalulekile. Ukulawula okuphelele kwezinga lokupholisa kuthinta ngokuqondile ukwakheka kwe-metallographic kanye nezici zemishini zokufogetha, ngakho-ke kufanele kusekelwe ezinsimbi ezihlukene ezingacishi nezinomoya opholile ukuze kutholwe izinga elifanele lokupholisa elilawulwa ngemva kokufoja ngokuhlola.

Njengamanje, idatha edinga ukulawulwa ekubunjweni kwesithando sokushisa sokungeniswa iyakhathazeka kakhulu futhi yaziswa amabhizinisi. Kuphela ngokunaka ngempela izinga lokushisa lokushisa kwesithando sokushisa esingeniswayo lapho kungaqinisekiswa khona ukubunjwa okujwayelekile, ukusebenza kahle kokukhiqizwa kokubumba kungathuthukiswa, futhi izindleko zokukhiqiza zingancishiswa.