Muzvigadzirwa zvemaindasitiri, simbi yegiya inoshandiswa zvakanyanya mumagetsi ekufambisa michina yakasiyana-siyana yemakanika nekuda kwesimba rayo guru, kuramba kupfeka uye kuramba kuneta. Hunhu hwayo hunokanganisa zvakananga kunaka uye hupenyu hwemidziyo. Saka, kudzora mhando yesimbi yegiya kwakakosha zvikuru. Pakusarudza, simba rayo, kusimba kwayo uye kuramba kupfeka kwayo zvinofanira kufungwa nezvazvo. Tisati tagadzira simbi yegiya, tinofanira kuongorora chimiro chesimbi, kuoma kwayo, kuumbwa kwemakemikari, nezvimwewo zvezvinhu zvacho. Chimiro chesimbi yegiya uye kuoma kwayo zviratidzo zvikuru zvekuongorora hunhu hwayo hwemakanika, mhedzisiro yekurapa kupisa uye hupenyu hwebasa. Kuongorora metallographic uye kuyedzwa kwekuoma kwesimbi yegiya kunofanirwa kutevedzera maitiro akajairwa, uye kugadzira hurongwa hwekuyedza hwakavakirwa pahunhu hwezvinhu nemamiriro ekushanda:
Kutanga, ongororo yesimbi. Maumbirwo esimbi yesimbi yegiya ane simba guru pakushanda kwayo, zvakaita sekudzika kwechikamu chakakangwa, saizi yezviyo, kugoverwa kwekabhoni, nezvimwewo. Zvakakosha kuona matanho ekuongorora, akadai sekutora sampuli, kugadzirira sampuro, ngura, uye wobva watarisa maumbirwo acho. Zvingave zvakakoshawo kutaura mhando dzenyama dzakajairika, dzakadai semartensite, bainite, pearlite, uye maitiro ekuongorora kana idzi nyama dzichizadzisa zvinodiwa.
Zvadaro kunouya bvunzo yekuomarara. Kuomarara kwesimbi yegiya kwakabatana zvakananga nekusapfeka uye kusimba. Nzira dzakajairika dzekuedza kuomarara dzinosanganisira kuomarara kweRockwell, kuomarara kweBrinell, kuomarara kweVickers, uye pamwe kuomarara kweRockwell pamusoro pezvikamu zvakakangwa. Zvakakosha kutsanangura mamiriro ezvinhu anoshanda enzira dzakasiyana dzekuedza, dzakadai seVickers kana Rockwell pamusoro pezvikamu zvakakangwa, uye Brinell kana Rockwell pakuomarara kwese. Panguva imwe chete, zviyero zvebvunzo, zvakaita seASTM kana GB, uye matanho ekudzivirira panguva yebvunzo, akadai sekusarudza nzvimbo dzebvunzo, kurapwa kwenzvimbo, nezvimwewo, zvinofanirwa kutaurwa.
Tisati taongorora, tinofanira kutanga tacheka nekuyedza simbi yegiya. Pazasi tinoshandisa muchina wekucheka sampuli wesimbi wakanyatsogadzirwa semuenzaniso kuratidza maitiro ekucheka sampuli.
1. Bvisa workpiece woisunga ne quick clamp.
2. Mushure mekusunga workpiece, isa chifukidziro chekudzivirira.
3. Isa maparamita ekucheka pachiratidziro wotanga chirongwa chekucheka
4. Vhura chifukidziro chepamusoro wobvisa muenzaniso wakachekwa kuti upedzise maitiro ekucheka muenzaniso.
Mienzaniso yakachekwa inogona kushandiswa pakugadzirira mienzaniso inotevera yakadai sekuisa, kukuya, uye kupukuta, mushure mezvo bvunzo yekuoma kwegiya kana ongororo yesimbi inogona kuitwa.
Nguva yekutumira: Kubvumbi-02-2025
