◦ Izinga lokusebenzisa: GB/T1222-2007.
◦ Ubuningi: 7.85 g/cm3.
• Ukwakheka kwamakhemikhali
◦ Ikhabhoni (C): 0.62% ~ 0.70%, okunikeza amandla ayisisekelo kanye nokuqina.
◦ I-Manganese (Mn): 0.90% ~ 1.20%, okuthuthukisa ukuqina nokuqinisa ukuqina.
◦ I-Silicon (Si): 0.17% ~ 0.37%, okuthuthukisa ukusebenza kokucubungula kanye nokucwenga okusanhlamvu.
◦ I-Phosphorus (P): ≤0.035%, i-sulfur (S) ≤0.035%, okulawula ngokuqinile okuqukethwe kokungcola.
◦ I-Chromium (Cr): ≤0.25%, i-nickel (Ni) ≤0.30%, ithusi (Cu) ≤0.25%, izakhi zokuxuba ezilandelanayo, ezisiza ekuthuthukiseni ukusebenza.
• Izakhiwo zemishini
◦ Amandla aphezulu: Amandla okudonsa σb angama-825MPa~925MPa, kanti eminye imininingwane ingaphezu kwama-980MPa. Inamandla okuthwala amahle kakhulu futhi ifanele izimo zokucindezeleka okuphezulu.
◦ Ukuqina okuhle: Inomkhawulo ophezulu wokunwebeka, ingamelana nokuguquguquka okukhulu kokunwebeka ngaphandle kokuguquguquka okuhlala njalo, futhi ingagcina futhi ikhulule amandla ngokunembile.
◦ Ubulukhuni obuphezulu: Ngemva kokwelashwa ngokushisa, ingafinyelela ku-HRC50 noma ngaphezulu, ngokumelana okukhulu kokuguguleka, efanelekile ezimweni zokuguguleka.
◦ Ukuqina okuhle: Uma ingaphansi kwemithwalo yokushaywa, ingamunca inani elithile lamandla ngaphandle kokuphuka okubuthakathaka, okuthuthukisa ukuthembeka nokuphila kwenkonzo ngaphansi kwezimo eziyinkimbinkimbi.
• Izici
◦ Ukuqina okuphezulu: I-Manganese ithuthukisa kakhulu ukuqina, ifanelekela ukukhiqiza iziphethu kanye nezingxenye ezinkulu ezinobubanzi obungaphezu kuka-20mm.
◦ Ukuthambekela okuphansi kokususa i-carburization ebusweni: Ikhwalithi yobuso izinzile ngesikhathi sokwelashwa kokushisa, okunciphisa ingozi yokwehluleka kusenesikhathi.
◦ Ukuzwela kokushisa ngokweqile kanye nokungaqini kokushisa: Izinga lokushisa lokucima kumele lilawulwe ngokuqinile, futhi izinga lokushisa lokungaqini kufanele ligwenywe ngesikhathi sokushisa.
◦ Ukusebenza kahle kokucubungula: kungenziwa ngobumba futhi kushiselwe, kufanelekela ukukhiqiza izingxenye ezibunjwe ngendlela eyinkimbinkimbi, kodwa ukuqina kokuguquguquka okubandayo kuphansi.
• Imininingwane yokwelashwa kokushisa
◦ Ukucima: Izinga lokushisa lokucima 830℃±20℃, ukupholisa uwoyela.
◦ Ukushisa: Izinga lokushisa lokushisa lingu-540℃±50℃, ±30℃ uma kunezidingo ezikhethekile.
◦ Ukulungisa: Izinga lokushisa 810±10℃, ukupholisa umoya.
• Izindawo zokufaka isicelo
◦ Ukukhiqiza entwasahlobo: njengeziphethu zamaqabunga ezimoto, iziphethu ezincibilikisa ugesi, iziphethu zamavalvu, izinhlanga ze-clutch, njll.
◦ Izingxenye zemishini: zingasetshenziswa ukukhiqiza izingxenye ezinomthwalo omningi, ezikhuhlana kakhulu njengegiya, amabheringi, nama-piston.
◦ Amathuluzi okusika kanye nama-stamping dies: ngokusebenzisa ubulukhuni bawo obukhulu kanye nokumelana nokuguguleka, ingasetshenziswa ukukhiqiza amathuluzi okusika, ama-stamping dies, njll.
◦ Izakhiwo namabhuloho: zingasetshenziswa ukukhiqiza izingxenye ezithuthukisa amandla okuthwala ezakhiwo, njengezinsimbi zokuthwala amabhuloho, izisekelo zesakhiwo, njll.
Isikhathi sokuthunyelwe: Julayi-18-2025