◦ Muyero wekuita: GB/T1222-2007.
◦ Density: 7.85 g/cm3.
• Kuumbwa kwemakemikari
◦ Carbon (C): 0.62% ~ 0.70%, inopa simba guru uye kuoma.
◦ Manganese (Mn): 0.90% ~ 1.20%, kuvandudza kuoma uye kuwedzera kuoma.
◦ Silicon (Si): 0.17% ~ 0.37%, kuvandudza kushandiswa kwekugadzirisa uye kunatsa zviyo.
◦ Phosphorus (P): ≤0.035%, sulfuri (S) ≤0.035%, kunyatsogadzirisa kusvibiswa kwezvinhu.
◦ Chromium (Cr): ≤0.25%, nickel (Ni) ≤0.30%, mhangura (Cu) ≤0.25%, tsvaga maitiro ekugadzirisa, kubatsira mukuvandudza kushanda.
• Mechanical properties
◦ Simba repamusoro: Simba rekusimba σb i825MPa~925MPa, uye imwe data iri pamusoro pe980MPa. Iyo ine yakanakisa kutakura simba uye yakakodzera kune yakanyanya kushushikana mamiriro.
◦ Yakanaka elasticity: Iine yakakwira elastic muganho, inogona kumira yakakura elastic deformation isina zvachose deformation, uye inogona kunyatsochengeta uye kusunungura simba.
◦ Kuomarara kwakanyanya: Mushure mekurapwa kwekupisa, inogona kusvika kuHRC50 kana pamusoro, nekunyanya kupfeka kusagadzikana, kwakakodzera mamiriro ekupfeka.
◦ Kuoma kwakanaka: Kana ichiiswa pasi pezvipingamupinyi zvinotakura, inogona kutora humwe huwandu hwesimba pasina brittle fracture, iyo inovandudza kuvimbika uye hupenyu hwebasa mumamiriro ezvinhu akaoma.
• Hunhu
◦ Kuoma kwepamusoro: Manganese inonyanya kuvandudza kuoma, yakakodzera kugadzira zvitubu uye zvikamu zvakakura zvine dhayamita inopfuura 20mm.
◦ Yakaderera maitiro epamusoro decarburization: Hunhu hwepamusoro hwakagadzikana panguva yekupisa, kuderedza njodzi yekutadza kwekutanga.
◦ Kunzwa kwekupisa uye brittleness yekupisa: Tembiricha yekudzima inofanira kunyatsodzorwa, uye brittle tembiricha renji inofanirwa kudzivirirwa panguva yekupisa.
◦ Kuita kwakanaka kwekugadzirisa: inogona kuumbwa uye kusungirirwa, yakakodzera kugadzira zvikamu zvakaoma-maumbirwo, asi inotonhora deformation plasticity yakaderera.
• Tsanangudzo yekurapa kwekupisa
◦ Kudzima: Kudzima tembiricha 830℃±20℃, kutonhora kwemafuta.
◦ Kupisa: Kupisa tembiricha 540℃±50℃, ±30℃ kana zvakakosha.
◦ Normalizing: Tembiricha 810±10℃, kutonhora kwemhepo.
• Nzvimbo dzekushandisa
◦ Kugadzirwa kwematsutso: sezvitubu zvemotokari mashizha, zvitubu zvinonyudza, zvitubu zvevharuvhu, tsanga dzeclutch, nezvimwe.
◦ Mechanical parts: inogona kushandiswa kugadzira-high-load, high-friction zvikamu zvakadai semagiya, mabhengi, uye pistons.
◦ Maturusi ekucheka nekutsika kunofa: kushandisa kuoma kwayo kwakanyanya uye kusapfeka kusakara, inogona kushandiswa kugadzira midziyo yekucheka, kutsika kunofa, nezvimwe.
◦ Zvivako nemabhiriji: zvinogona kushandiswa kugadzira zvinhu zvinosimudzira kubereka kwezvivakwa, senge mabhengi ebhiriji, zvinotsigira zvivakwa, nezvimwe.
Nguva yekutumira: Jul-18-2025