35CrMo alloy simbi pombi inogadzira nzvimbo garandi yekutengesa
35CrMo ndiyo nhamba yakatarwa yealloy structural simbi (alloy quenched and tempered steel), iyo inonyanya kushandiswa kugadzira zvikamu zvakakosha mumichina yakasiyana-siyana inotakura maitiro, kupeta uye torsion uye mutoro wakakwirira. Iyo yakabatana yedhijitari kodhi ye35CrMo alloy structural simbi (alloy yakadzimwa uye yakadzikama simbi) ndeye a30352, uye chiyero chepamusoro iGB / t3077-2015.
35crmo
35CrMo (2 mapepa)
Italy: 35crmo4
NBN: 34crmo4
Sweden: 2234
Zuva nezuva mwero: scm432 / sccrm3
Inoshandiswa kugadzira zvikamu zvakakosha mumichina yakasiyana-siyana inotakura simba, kupeta uye torsion uye mutoro wakakwirira, senge herringbone giya, crankshaft, nyundo tsvimbo, tsvimbo yekubatanidza uye zvisungo zvesimbi inotenderedza mill, main shaft uye axle yemhepo turbine injini, kutapurirana injini. zvikamu, hombe mota shaft, perforator mumuchina wepetroleum, boiler mabhaudhi ane tembiricha yekushanda yakaderera pane 400 ℃, nzungu dzine tembiricha yekushanda yakaderera kupfuura 510 ℃, Kudzvinyirira kwakanyanya kusina musono gobvu remadziro (tembiricha 450 ~ 500 ℃, hapana corrosive medium) mumakemikari muchina. ; Inogona zvakare kutsiva 40crni yekugadzira yakakwira mitoro yekufambisa shaft, steam turbine injini rotor, hombe chikamu giya, tsigiro shaft (dhayamita isingasviki 500mm), nezvimwe; Process midziyo zvinhu, pombi, welding zvinhu, etc.
Inoshandiswa sezvikamu zvakakosha zvezvimiro zvinoshanda pasi pemutoro wakakwirira, zvakadai sekutumira zvikamu zvemotokari uye injini; Rotor, shaft huru, inorema mutoro wekutumira shaft uye yakakura chikamu zvikamu zve steam turbine jenareta.
Kabhoni C: 0.32 ~ 0.40
Silicon Si: 0.17 ~ 0.37
Mn: 0.40 ~ 0.70
Sulfur s: zvinotenderwa zvakasara zvemukati ≤ 0.035
Phosphorus P: zvinotenderwa zvakasara zvemukati ≤ 0.035
Cr: 0.80 ~ 1.10
Nickel: zvinotenderwa zvakasara zvemukati ≤ 0.30
Mhangura Cu: inotenderwa yakasara yemukati ≤ 0.30
Mo: 0.15 ~ 0.25
Kusimba simba σ b (MPa): ≥985(100)
Goho simba σ s (MPa): ≥835(85)
Elongation δ 5 (%): ≥12
Kuderedza nzvimbo ψ (%): ≥45
Impact simba Akv (J): ≥ 63
Impact kuomarara kukosha α kv (J/cm²): ≥78(8)
Kuoma: ≤ 229hb
Saizi yemuenzaniso: saizi isina chinhu saizi ndeye 25mm
Kupisa kurapwa kutsanangurwa uye metallographic chimiro
Tsanangudzo yekurapa kwekupisa: kudzima 850 ℃, kutonhora kwemafuta; Kupisa 550 ℃, kutonhora kwemvura, kutonhora kwemafuta.
Simbi giredhi: 35CrMo
Sample blank size / mm: 25
Heat treatment | quenching | kupisa tembiricha / ℃ | kudzima kwekutanga: 850
Heat treatment | quenching | kupisa tembiricha / ℃ | kudzima kwechipiri: --
Heat treatment | quenching | inotonhorera: Mafuta
Heat treatment | kupenga | kupisa tembiricha / ℃: 550
Heat treatment | kupenga | inotonhorera: mvura, mafuta
Mechanical properties | simba rekusimba σ b/MPa|≥: 980
Mechanical properties | goho poindi σ s/MPa|≥: 835
Mechanical properties | kureba δ 5(%)|≥: 12
Mechanical properties | kupera kwepamusoro ψ(%)| ≥: 45
Mechanical properties | kukanganisa kunyura simba Akv / J | ≥: 63
Delivery state kuoma HBS | ≥: 229
Delivery mamiriro: kuendesa mukupisa kurapwa (normalizing, annealing kana yakakwirira tembiricha tembiricha) kana isiri yekupisa kurapwa mamiriro, uye mamiriro ekutumira acharatidzwa muchibvumirano.
