◦ Izinga lokusetshenziswa: GB/T1222-2007.
◦ Ukuminyana: 7.85 g/cm3.
• Ukwakheka kwamakhemikhali
◦ Ikhabhoni (C): 0.62%~0.70%, ihlinzeka ngamandla ayisisekelo nokuqina.
◦ IManganese (Mn): 0.90%~1.20%, ithuthukisa ukuqina nokuqina.
◦ I-Silicon (Si): 0.17%~0.37%, ithuthukisa ukusebenza kokucubungula nokucwenga okusanhlamvu.
◦ I-Phosphorus (P): ≤0.035%, isulfure (S) ≤0.035%, elawula ngokuqinile okuqukethwe kokungcola.
◦ I-Chromium (Cr): ≤0.25%, i-nickel (Ni) ≤0.30%, ithusi (Cu) ≤0.25%, ukulandelela izakhi ze-alloying, okusiza ekuthuthukiseni ukusebenza.
• Izakhiwo zemishini
◦ Amandla aphezulu: Amandla e-tensile σb ngu-825MPa~925MPa, futhi enye idatha ingaphezu kuka-980MPa. Inomthamo omuhle kakhulu wokuthwala futhi ifanele izimo zokucindezeleka okukhulu.
◦ I-elasticity enhle: Inomkhawulo ophezulu wokunwebeka, ingakwazi ukumelana nokuguquguquka okukhulu okunwebekayo ngaphandle kokuguqulwa okuhlala njalo, futhi ingagcina ngokunembile futhi ikhulule amandla.
◦ Ukuqina okuphezulu: Ngemva kokwelashwa kokushisa, kungafinyelela ku-HRC50 noma ngaphezulu, ngokumelana okuphawulekayo kokugqokwa, kulungele izimo zokugqoka.
◦ Ukuqina okuhle: Uma ingaphansi kwemithwalo enomthelela, ingakwazi ukumunca inani elithile lamandla ngaphandle kokuphuka kwe-brittle, okuthuthukisa ukuthembeka nempilo yesevisi ngaphansi kwezimo eziyinkimbinkimbi.
• Izici
◦ Ukuqina okuphezulu: IManganese ithuthukisa kakhulu ukuqina, ifanele iziphethu zokukhiqiza kanye nezingxenye ezinkulu ezinobubanzi obungaphezu kuka-20mm.
◦ Ukuthambekela okuphansi kwe-surface decarburization: Ikhwalithi yangaphezulu izinzile phakathi nokwelashwa kokushisa, yehlisa ingcuphe yokwehluleka kwangaphambi kwesikhathi.
◦ Ukuzwela ukushisa ngokweqile kanye nokushisa okushisayo: Izinga lokushisa lokucisha kufanele lilawulwe ngokuqinile, futhi izinga lokushisa eliphukayo kufanele ligwenywe ngesikhathi sokushisa.
◦ Ukusebenza kahle kokucubungula: kungafojwa futhi kushiselwe, kulungele ukukhiqiza izingxenye ezimise okuyinkimbinkimbi, kodwa ukwakheka okubandayo kwepulasitiki kuphansi.
• Ukucaciswa kokwelashwa kokushisa
◦ Ukucisha: Ukushisa kokucisha okungu-830℃±20℃, ukupholisa uwoyela.
◦ Ukushisa: Izinga lokushisa elingu-540℃±50℃, ±30℃ uma kunesidingo esikhethekile.
◦ Normalizing: Izinga lokushisa 810±10℃, ukupholisa komoya.
• Izindawo zokufaka izicelo
◦ Ukukhiqizwa kwasentwasahlobo: okufana nemithombo ye-automobile leaf, imithombo yokudonsa ukushaqeka, ama-valve springs, ama-clutch reed, njll.
◦ Izingxenye zikagesi: zingasetshenziselwa ukwakha izingxenye ezilayisha kakhulu, ezishayisana kakhulu njengamagiya, ama-bearing, namapiston.
◦ Amathuluzi okusika nokugxiviza kuyafa: kusetshenziswa ubulukhuni bayo obuphezulu nokumelana nokuguga, kungasetshenziswa ukwenza amathuluzi okusika, ukugxiviza kuyafa, njll.
◦ Izakhiwo namabhuloho: angasetshenziswa ukwenza izingxenye ezithuthukisa amandla okuthwala izakhiwo, njengama-bearings amabhuloho, izisekelo zezakhiwo, njll.
Isikhathi sokuthumela: Jul-18-2025