Amakuru ya tekiniki
| Ibigize imiti |
| Icyiciro |
C. |
Si |
Mn |
P. |
S. |
Cr |
Mo. |
Cu |
| 35CrMo |
0.38～0.45% |
0.17～0.37% |
0.50～0.80% |
≤0.035% |
≤0.035% |
0.90～1.20% |
0.15～0.25% |
≤0.30% |
Ibikoresho bya mashini
| Gutanga imbaraga σs / MPa (> =) |
Imbaraga zingana σb / MPa (> =) |
Kurambura
δ5 /% (> =) |
Kugabanuka kwa
akarere ψ /% (> =) |
Ingaruka zo gukuramo imbaraga Aku2 / J (> =) |
Gukomera HBS
100 / 3000 max |
| 30930 (95) |
801080 (110) |
≥12 |
≥45 |
≥78 (8) |
≤217HB |
Kugirango ubuzima bwipfe bugere ku nshuro zirenga 800.000 zipfa, ibyuma byabanjirije gukomera birashobora gukomera no kuzimya hamwe nubushyuhe buke. Iyo uzimye, shyushya kuri 500-600 ℃ mumasaha 2-4, hanyuma ubigumane kuri 850-880 ℃ mugihe runaka (byibuze amasaha 2), hanyuma ubishyire mumavuta hanyuma ukonje kugeza 50-100 ℃ na gukonjesha ikirere, ubukana bushobora kugera kuri 50 nyuma yo kuzimya -52HRC, kugirango hirindwe gucika, 200 treatment kuvura ubushyuhe bwo hasi bigomba guhita bikorwa. Nyuma yo kurakara, gukomera birashobora kugumaho hejuru ya 48HRC.
42CrMo Kuvura Ubushyuhe
Annealing
Annealing muri 760 ± 10 ℃, gukonjesha itanura kugeza 400 ℃ hanyuma gukonjesha ikirere.
Kubisanzwe
Ubusanzwe muri 760 ± 10 ℃, gukonjesha umwuka nyuma yo kuva mu itanura.
Inyandiko zijyanye no kuzimya no kuvura ubushyuhe
Ugomba kwitondera ubushyuhe bwa firimu ikonjesha. Kandi ugomba kumenya neza ko nta mavuta yanduye cyangwa andi mwanda. Bitabaye ibyo, ubukana bwibyuma ntibuzaba buhagije cyangwa buringaniye.
Kuzimya no gutondekanya ibyuma bya bilet bidatunganijwe, noneho bizabona ubukana butari bumwe. Gutunganya rero guhimba cyangwa gusya birakenewe mbere ya Q + T.
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