Yakasimba yakaderera simba uye microscopic (yakakwirira simba) tishu zvinodiwa. Iyo yakaderera magnification microstructure yekutakura simbiinoreva general loose, center loose and segregation, uye microscopic (high magnification) microstructure inosanganisira annealing microstructure yesimbi, carbide network, strip uye liquid evolution, etc. Mushonga we carbide wakaoma uye wakaoma, uye kukuvadza kwayo kwakafanana neyokubatanidzwa kwebrittle. Iyo network carbide inoderedza kuomarara kwesimbi uye inoita kuti chimiro chisaenzana, chiri nyore kukanganisa uye kutsemuka panguva yekudzima. Banded carbides inokanganisa annealed uye quenched tempering microstructure uye kubata kuneta simba. Hunhu hwesimba repasi uye repamusoro simba chimiro chine simba guru pakuita uye hupenyu hwesevhisi hwemabhengi ekutenderera, saka pane zvakaomesesa zvinodiwa zveyakaderera uye yakakwirira simba chimiro mukutakura zvinhu zviyero.
Zvakanyanya kuomesesa zvinodiwa zvekuremara kwepamusoro uye kukanganisa kwemukati. Kutakura simbi, kuremara kwepamusoro kunosanganisira kuputika, slag inclusion, burrs, scarring, oxide ganda, nezvimwewo, uye kukanganisa kwemukati kunosanganisira shrinkage maburi, mabhuru, mavara machena, porosity yakakomba uye kupatsanurwa. Izvi zvinokanganisa zvine simba guru pakugadzirisa mabheya, kutakura kushanda uye hupenyu. Iyo inotsanangurwa zvakajeka mukutakura zvinhu zviyero izvo zvirema izvi hazvibvumidzwe.
Strict carbide inhomogeneity zvinodiwa. Mukutakura simbi, kana paine zvakakomba kusaenzana carbide kugovera, zviri nyore kukonzera kusaenzana microstructure uye kuoma mukuita kupisa kurapwa. Iyo isina kuenzana microstructure yesimbi ine simba guru pakubata kuneta simba. Uye zvakare, yakakomba carbide isiri-uniformity zvakare iri nyore kupaza inotakura zvikamu panguva yekudzima kutonhora, uye carbide isiri-uniformity inotungamira mukudzikiswa kwehupenyu hwekubereka. Nokudaro, mukutakura zviyero zvezvinhu, pane zvinodiwa zvakananga kune zvakasiyana-siyana zvesimbi.
Strict surface decarburization layer kudzika zvinodiwa. Pane mitemo yakasimba pamusoro pepamusoro decarburization layer yesimbi mune inotakura zvinhu zviyero. Kana iyo yepamusoro decarburization layer ikapfuura iyo yakatemerwa chiyero cheiyo chiyero, uye isina kubviswa zvachose mukugadzirisa kusati kwaitwa kupisa, zviri nyore kugadzira quenching mitswe mukati mekugadzirisa kupisa kwekudzima, zvichikonzera zvimedu zvezvikamu.
Mune inotakura simbi yezvinhu mwero, pane zvakare zvakaomesesa zvinodikanwa panzira yekunyungudutsa, okisijeni yemukati, annealing kuomarara, kutyoka, zvakasara zvinhu, spark bvunzo, mamiriro ekutumira, kumaka uye zvichingodaro.
Nguva yekutumira: Kubvumbi-12-2023