20CrMnMo bishyushye bizunguruka ibyuma bizunguruka

Imikorere myiza yo gutunganya amashyuza, isanzwe nyuma yimikorere myiza yo gukata, nyuma yo kuzimya no gutwarwa hamwe nubukanishi bwiza hamwe nubushyuhe buke bwubushyuhe, nyuma ya carburizing ifite imbaraga zoroshye kandi zikananirwa kwihanganira, ariko gusudira nabi, kugirango bishyushye neza mbere yo gusudira, nyuma yo gusudira bigomba kurakara. Bikunze gukoreshwa mubisabwa byo gukora ubukana bwo hejuru, kwihanganira kwambara neza ni ibice byingenzi bya karburizasi, nka gare, camshafts inkoni,

Ibigize imiti:
Carbone C: 0.17 ~ 0.23
Si Si: 1.17 ~ 1.37
Mn Mn: 0.90 ~ 1.20
Amazi ya S: kwemerera ibintu bisigaye ≤0.035
Fosifore P: kwemerera ibintu bisigaye ≤0.035
Chromium Cr: 1.10 ~ 1.40
Ni: kwemerera ibintu bisigaye ≤0.030
Cu: kwemerera ibintu bisigaye ≤0.030
Mo Mo: 0.20 ~ 0.30
Ibikoresho bya mashini:
Imbaraga zingana σb (MPa): 751175 (120)
Gutanga imbaraga σs (MPa): 85885 (90)
Kurambura δ5 (%): ≥10
Kugabanuka kwa ψ (%): ≥45
Ingaruka zingufu Akv (J): ≥55
Ingaruka zikomeye αkv (J / cm2): ≥69 (7)
Gukomera: ≤217HB
Ingano yicyitegererezo: Ingano yicyitegererezo ni 15mm ikabije
Kuvura ubushyuhe hamwe na microstructure ibisobanuro:
Ibisobanuro byo kuvura ubushyuhe: kuzimya 850 ℃, gukonjesha amavuta; gushyushya 200 ℃, gukonjesha amazi, gukonjesha umwuka.
Microstructure: tempered martensite.
Imiterere yo gutanga: gushyushya ubushyuhe (bisanzwe, annealing cyangwa ubushyuhe) cyangwa hatabayeho gutanga ubushyuhe, imiterere yabyo igomba kugaragara mumasezerano.