20CrMnMo bir wareeg ah oo kulul

Waxqabadka habaynta kulaylka wanaagsan, normalizing ka dib markii waxqabadka goynta wanaagsan, ka dib deminta iyo xanaaqa leh guryaha farsamo wanaagsan iyo heerkulka hooseeyo adkaanta saamaynta, ka dib markii carburizing leeyihiin xoog flexural sare iyo xirtaan iska caabin ah, laakiin weldability liidata, in si habboon loo diiriyo ilaa ka hor alxanka, ka dib alxanka waa in xanaaqsanow. Caadi ahaan loo isticmaalo shuruudaha wax soo saarka ee engegnaanta dusha sare, caabbinta xirashada wanaagsan ayaa ah qaybo muhiim ah oo carburizing ah, sida gears, usha camshafts,

Halabuurka Kiimikada:
Kaarboon C: 0.17 ~ 0.23
Si Si: 1.17 ~ 1.37
Mn Mn: 0.90 ~ 1.20
Sulfur S: si loo ogolaado hadhaaga waxa ku jira ≤0.035
Fosfooraska P: si loo oggolaado waxa ka haray ≤0.035
Chromium Cr: 1.10 ~ 1.40
Ni: si aad u ogolaato waxa hadhaaga ah ≤0.030
Cu: si aad u ogolaato waxa hadhaaga ah ≤0.030
Mo Mo: 0.20 ~ 0.30
Guryaha Makaanikada:
Xoogga xajinta σb (MPa): ≥1175 (120)
Awood-soo-saarka σs (MPa): ≥885 (90)
Kordhinta δ5 (%): ≥10
Dhimista ψ (%): ≥45
Saamaynta tamarta Akv (J): ≥55
Saamaynta adag αkv (J / cm2): ≥69 (7)
Adag: ≤217HB
Cabbirka Tusaalaha: Cabbirku waa 15mm qalafsanaan ah
Daawaynta kulaylka iyo qeexida qaab-dhismeed yar:
Tilmaamaha daaweynta kulaylka: deminta 850 ℃, qaboojinta saliidda; heerkulka 200 ℃, biyo qaboojiyey, hawo qaboojiyey.
Qaab-dhismeedka yar-yar: martensite xanaaqsan.
Heerka gaarsiinta: si loo kululeeyo daawaynta (caadiyan, nuglaynta ama xanaaqa) ama iyada oo aan la bixin daaweynta kulaylka, heerka dhalmada waa in lagu qeexaa heshiiska.