20CrMnMo inopisa yakakungurutswa simbi yakatenderedzwa mbariro

Yakanaka yekupisa yekupisa mashandiro, inojairika mushure mekuita kwakanaka kwekucheka, mushure mekudzima uye kudziya neakanaka emagetsi emagetsi uye yakaderera tembiricha inokanganisa kuoma, mushure mecarburizing vane yakakwira flexural simba uye kupfeka kuramba, asi kushata weldability, kudziyirwa zvakanaka pamberi pekupisa, mushure mekuputika kunofanirwa. kuzvidzora. Inowanzo shandiswa mukugadzira zvinodiwa zvehukukutu hwepamusoro, kupfeka kwakanaka kuramba kwakakosha carburizing zvikamu, senge magiya, camshafts tsvimbo,

Kemikari Kuumbwa:
Kabhoni C: 0.17 ~ 0.23
Si Si: 1.17 ~ 1.37
Mn Mn: 0.90 ~ 1.20
Sulfur S: kubvumira zvakasara zvemukati ≤0.035
Phosphorus P: kubvumira zvakasara zvemukati ≤0.035
Chromium Cr: 1.10 ~ 1.40
Ni: kubvumidza zvakasara zvemukati ≤0.030
Cu: kubvumidza zvakasara zvemukati ≤0.030
Mo Mo: 0.20 ~ 0.30
Mechanical Properties:
Tensile simba σb (MPa): ≥1175 (120)
Goho simba σs (MPa): ≥885 (90)
Elongation δ5 (%): ≥10
Kuderedzwa kwe ψ (%): ≥45
Impact simba Akv (J): ≥55
Impact kuoma αkv (J / cm2): ≥69 (7)
Kuoma: ≤217HB
Saizi yemuenzaniso: Saizi yemuenzaniso ndeye 15mm yakaoma
Kurapa kwekupisa uye microstructure tsanangudzo:
Kupisa kurapwa kutsanangurwa: kudzima 850 ℃, kutonhora kwemafuta; kupisa 200 ℃, mvura-yakatonhodzwa, mhepo-yakatonhorera.
Microstructure: tempered martensite.
Mamiriro ekutumira: kupisa kurapwa (normalizing, annealing kana tempering) kana pasina kupisa kurapwa, mamiriro ekutumira anofanirwa kutsanangurwa muchibvumirano.