Inqubo yokusebenza yokwelapha ukushisa kwesithando se-Muffle

Isithando somlilo somlilo we-muffle yinqubo ebanzi lapho izinto zishiswa khona, zifakwe ngaphakathi futhi zipholile endaweni ethile, futhi ukusebenza kwazo kulawulwa ngokushintsha indawo noma isakhiwo sangaphakathi sempahla.

Indlela evamile yokucubungula yesithando somlilo se-muffle:

1: Ukufakwa kwesithando somlilo se-Muffle: kubhekisela kwinqubo yokwelapha ukushisa lapho izinto zensimbi zishiselwa ezingeni lokushisa elifanele, zigcinwe isikhathi esithile, bese zipholiswa kancane kancane. Izinqubo ezivamile zokukhipha isisu yilezi: ukufakwa kabusha kwe-annealing, ukukhishwa kwe-stress annealing, i-spheroidizing annealing, ukuhlanganisa okuphelele nokunye. Inhloso ye-annealing: ikakhulukazi ukunciphisa ubulukhuni bezinto zensimbi, ukuthuthukisa ipulasitiki, ukwenza lula ukusika noma ukucubungula ingcindezi, ukunciphisa ukucindezeleka okusele, ukuthuthukisa ukufana kwesakhiwo nokubunjwa, noma ukulungiselela ukwelashwa kokushisa okulandelayo.

2: I-Muffle furnace normalizing: ibhekisela kwinqubo yokushisisa insimbi noma izingxenye zensimbi ngenhla noma (izinga lokushisa eliphezulu elibalulekile lensimbi), ukuyigcina iku-30℃ 50℃ isikhathi esifanele, bese uyipholisa emoyeni onganyakazi. Inhloso yokujwayelekile ukuthuthukisa izakhiwo zemishini yensimbi enekhabhoni ephansi, ukuthuthukisa ukusebenza kahle, ukucwenga okusanhlamvu, ukuqeda ukonakala kwesakhiwo, nokulungiselela ukwelashwa kokushisa okulandelayo.

3: Ukucisha isithando somlilo se-Muffle: kusho ukushisisa insimbi ezingeni lokushisa elingaphezu kwe-Ac3 noma i-Ac1 (izinga lokushisa eliphansi lensimbi elibalulekile), ukuyigcina isikhathi esithile, bese uthola i-martensite (noma i-bainite) ngesilinganiso sokupholisa esifanele. ) Inqubo yokwelapha ukushisa yenhlangano. Izinqubo ezivamile zokucisha zihlanganisa ukucisha ukugeza usawoti, ukucisha i-martensite graded, austempering bainite, quenching surface kanye nokucisha kancane. Inhloso yokucisha: ukuthola isakhiwo se-martensite esidingekayo sensimbi, ukuthuthukisa ubulukhuni, amandla nokugqoka ukumelana kwe-workpiece, nokulungiselela isakhiwo sokwelashwa kokushisa okulandelayo.

I-4: Ukushisa kwesithando somlilo se-Muffle: kubhekisela enkambisweni yokwelashwa kokushisa lapho izingxenye zensimbi zicinywa khona bese zishiselwa ezingeni elithile lokushisa ngezansi, zigcinwe isikhathi esithile, bese zipholiswa ekamelweni lokushisa. Izinqubo zokushisa ezivamile yilezi: ukushisa okuphansi kwezinga lokushisa, ukushisa okuphakathi nendawo, ukushisa okuphezulu kwezinga lokushisa kanye nokushisa okuningi. Inhloso yokushisa: ikakhulukazi ukuqeda ukucindezeleka okukhiqizwa yinsimbi ngesikhathi sokucisha, ukuze insimbi ibe nobunzima obuphezulu nokumelana nokugqoka, futhi ibe ne-plasticity edingekayo kanye nokuqina.