35CrMo aloyi zitsulo chitoliro wopanga malo chitsimikizo malonda
35CrMo ndi nambala yeniyeni ya chitsulo chopangidwa ndi alloy (aloyi chozimitsidwa ndi chitsulo chotentha), chomwe chimagwiritsidwa ntchito kwambiri popanga zigawo zofunika pamakina osiyanasiyana okhala ndi mphamvu, kupindika ndi torsion ndi katundu wambiri. Khodi yolumikizana ya digito ya 35CrMo alloy structural steel (aloyi yozimitsidwa ndi chitsulo chotentha) ndi a30352, ndipo muyezo waukulu ndi GB / t3077-2015
35 crmo
35CrMo (2 mapepala)
Italy: 35crmo4
NBN: 34crmo4
Sweden: 2234
Muyezo watsiku ndi tsiku: scm432 / sccrm3
Amagwiritsidwa ntchito popanga magawo ofunikira pamakina osiyanasiyana okhala ndi mphamvu, kupindika ndi kugwedezeka ndi katundu wambiri, monga zida za herringbone, crankshaft, ndodo ya nyundo, ndodo yolumikizira ndi zomangira zachitsulo chopukutira mphero, shaft yayikulu ndi exle ya injini ya turbine, kufala kwa injini. mbali, shaft yaikulu ya injini, perforator mu makina a petroleum, mabawuti owiritsa ndi kutentha kwapansi kuposa 400 ℃, mtedza wokhala ndi kutentha kwapansi kuposa 510 ℃, Kuthamanga kwamphamvu kosasunthika kopanda khoma (kutentha 450 ~ 500 ℃, palibe sing'anga zowononga) mumakina amankhwala. ; Itha kusinthanso 40crni popanga shaft yonyamula katundu wambiri, injini ya injini ya nthunzi, zida zazikulu zagawo, shaft yothandizira (m'mimba mwake zosakwana 500mm), ndi zina zambiri; Njira zida zipangizo, mipope, zipangizo kuwotcherera, etc.
Amagwiritsidwa ntchito ngati magawo ofunikira omwe amagwira ntchito pansi pa katundu wambiri, monga magawo otumizira magalimoto ndi injini; Rotor, shaft yayikulu, shaft yolemetsa yolemetsa ndi magawo akulu a jenereta ya turbine ya nthunzi.
Mpweya C: 0.32 ~ 0.40
Silicon Si: 0.17 ~ 0.37
Mkati: 0.40 ~ 0.70
Sulfur s: zovomerezeka zotsalira ≤ 0.035
Phosphorus P: zovomerezeka zotsalira ≤ 0.035
Kukula: 0.80 ~ 1.10
Nickel: zovomerezeka zotsalira ≤ 0.30
Copper Cu: zovomerezeka zotsalira ≤ 0.30
Mo: 0.15 ~ 0.25
Kulimba kwamphamvu σ b (MPa): ≥985(100)
Mphamvu zokolola σ s (MPa): ≥835(85)
Elongation δ 5 (%): ≥12
Kuchepetsa kwa dera ψ (%): ≥45
Mphamvu yamphamvu Akv (J): ≥ 63
Mphamvu yamphamvu α kv (J/cm²): ≥78(8)
Kulimba: ≤ 229hb
Kukula kwachitsanzo: kukula kopanda kanthu ndi 25mm
Kutentha kwamankhwala ndi kapangidwe ka metallographic
Kutentha kwamankhwala: kuzimitsa 850 ℃, kuziziritsa kwamafuta; Kutentha 550 ℃, madzi kuzirala, mafuta kuzirala.
Gawo lachitsulo: 35CrMo
Zitsanzo zopanda kanthu / mm: 25
Chithandizo cha kutentha | kuzimitsa | kutentha kutentha / ℃ | kuzima koyamba: 850
Chithandizo cha kutentha | kuzimitsa | kutentha kutentha / ℃ | kutha kwachiwiri: --
Chithandizo cha kutentha | kuzimitsa | choziziritsa: Mafuta
Chithandizo cha kutentha | kuseka | kutentha kutentha / ℃: 550
Chithandizo cha kutentha | kuseka | ozizira: madzi, mafuta
Makaniko katundu | kulimba kwamphamvu σ b/MPa|≥: 980
Makaniko katundu | mfundo yotulutsa σ s/MPa|≥: 835
Makaniko katundu | kutalika δ 5(%)|≥: 12
Makaniko katundu | kutsika pamwamba ψ(%)| ≥: 45
Makaniko katundu | mphamvu mayamwidwe mphamvu Akv / J | ≥: 63
Kutumiza boma kuuma HBS | ≥: 229
Mkhalidwe wobweretsera: kuperekedwa mu chithandizo cha kutentha (kutentha, kuzizira kapena kutentha kwambiri) kapena kusakhala ndi kutentha kwachidziwitso, ndi momwe kuperekera kudzasonyezedwa mu mgwirizano.
