Chii chinonzi kudzima?
Kudzima kurapwa inzira yekupisa kupisa umo simbi ine kabhoni ye0.4% inopisa kusvika 850T uye nekukurumidza kutonhora.Kunyangwe kudzima kunowedzera kuomarara, kunowedzerawo brittleness.Inowanzo shandiswa quenching media zvinosanganisira mvura yemunyu, mvura, mineral oil, mhepo, etc. Kudzima kunogona kuvandudza kuomarara uye kusapfeka kusaga kwesimbi workpieces, uye inoshandiswa zvakanyanya mumidziyo yakasiyana-siyana, molds, maturusi ekuyeresa, uye zvikamu zvisingapfekere (senge magiya, rollers, carburized parts, etc.).Nekubatanidza kudzimisa nekupisa patembiricha dzakasiyana, simba uye kuneta simba resimbi rinogona kuvandudzwa zvakanyanya, uye kurongeka pakati pezvivakwa izvi kunogona kuwanikwa kusangana nezvinodiwa zvakasiyana zvekushandisa.
Chinangwa chekudzima simbi ndechei?
Chinangwa chekudzima ndechekushandura undercooled austenite kuita martensite kana bainite kuti uwane martensite kana bainite chimiro, uyezve kushandira pamwe nekupisa patembiricha dzakasiyana kuvandudza zvakanyanya kuoma, kuomarara, kusapfeka, simba rekuneta, uye kuoma kwesimbi, nekudaro kusangana ne zvakasiyana-siyana zvekushandisa zvinodiwa zveakasiyana mekiniki zvikamu uye maturusi.Izvo zvakare zvinogoneka kusangana neakakosha emuviri uye makemikari zvimiro zvemamwe simbi akakosha, senge ferromagnetism uye corrosion resistance, kuburikidza nekudzima.
High frequency quenching yeS45C simbi
1. High frequency quenching inonyanya kushandiswa pakudzima kwepamusoro kwezvikamu zvesimbi zveindasitiri.Iyo isimbi yekupisa kupisa nzira inogadzira imwe chiyero cheiyo induced ikozvino pamusoro pechigadzirwa workpiece, inokurumidza kupisa pamusoro pechikamu, uye nekukasira kuidzima.Induction yekudziisa midziyo inoreva michina yemagetsi inokurudzira kudziyisa kwezvishandiso zvekudzima pamusoro.Iyo yakakosha musimboti wekudziya kwekudziya: Chigadzirwa chekushanda chinoiswa mune inductor, inowanzova isina mhangura chubhu ine yekupinza yepakati frequency kana yakakwirira-frequency AC simba (1000-300000Hz kana kupfuura).Kugadzirwa kwemagineti anochinjika kunogadzira ikozvino induced yema frequency akafanana muworkpiece.Iyi induced current inogoverwa zvisina kuenzana pamusoro, yakasimba pamusoro, asi ine utera mukati, inosvika 0 pakati.Nekushandisa iyi ganda mhedzisiro, pamusoro peiyo workpiece inogona kukurumidza kupisa, uye mukati memasekondi mashoma, tembiricha yepamusoro inogona kukurumidza kuwedzera kusvika 800-1000 ℃, nekuwedzera kudiki kwepakati tembiricha.Iyo yakanyanya kuoma kwepamusoro kwesimbi makumi mana neshanu mushure mekudzima kwepamusoro-frequency inogona kusvika HRC48-53.Mushure mepamusoro-frequency quenching, kupfeka kuramba uye kuita kunowedzera zvakanyanya.
Musiyano pakati peakadzima uye asina kudzimwa 2.45 simbi: Pane mutsauko wakakura pakati pekudzimwa neasina kudzimwa 45 simbi, kunyanya nekuti inodzimwa uye simbi yakapfava inogona kuwana kusimba kwepamusoro uye simba rakakwana.Kuoma kwesimbi kusati kwadzima uye kudziya kwakatenderedza HRC28, uye kuomarara mushure mekudzima nekudziya kuri pakati peHRC28-55.Kazhinji, zvikamu zvinogadzirwa nemhando iyi yesimbi zvinoda zvakanaka zvakakwana zvemichina zvivakwa, ndiko kuti, kuchengetedza simba repamusoro ukuwo uine yakanaka plastiki uye kuoma.
Nguva yekutumira: Nov-23-2023