Kev ua yeeb yam ntawmQ550NHERING STEELHauv qhov qis -} Qhov chaw ib puag ncig nyob ntawm ntau yam, tab sis nws cov khoom tseem ceeb tuaj yeem tswj hwm nrog kev tsim qauv tsim nyog thiab cov khoom siv tsim nyog. Ntawm no yog kev txheeb xyuas meej meej:
1. Kev Cuam Tshuam Rau Cov Khoom Tseem Ceeb
| Ntiag tug | Tsawg - kub nyhuv(piv txwv li, -20℃rau -40 degree) | Cov tswv yim Kev Pab Nkhaus |
|---|---|---|
| Kev muaj zog | Txo kev cuam tshuam tiv taus (pheej hmoo ntawm brittle backstrure) | Kev sivNi {-} alloyed Q550NH(Ni ntau dua los yog sib npaug rau 0.5%) lossis normalming tuab seem. |
| Kev ua cev tub | PATININ tsim Slows tab sis tseem muaj kev tiv thaiv ib zaug ruaj khov. | Ua ntej - huab cua huab cua hlau ua ntej kev teeb tsa lossis siv xeb ruaj khov. |
| Lub zog | Yield / tensile lub zog yuav nce me ntsis (tsis muaj kev cuam tshuam tseem ceeb). | Nco ntsoov Weld Cov Txheej Txheem Cov Txheej Txheem rau thermal monsactionales. |
2. Qhov tseem ceeb pib
Ductile - rau -} brittle hloov: Tshwm sim ntawm-30℃rau -50 degree(sib txawv los ntawm cov tuab thiab ua).
Kev xeem yuav tsum tau ua: Charpy v - tsis muaj dua los yog sib npaug ntawm 27J ntawm-20 degree(ib tus GB / T 4171), tab sis txheeb xyuas qhov qis dua temps ntawmISO 148.
Welded pob qij txha: Haz (cua sov -}} cuam tshuam thaj chaw) yog qhov yooj yim tshaj plaws; kev sivTsawg - hydrogen mroundorodes(piv txwv li, aws E7015-g).
3. Cov lus pom zoo tsim
Rau Arctic / Huab Cua Txias:
Qhia meejTMCP (ThermieManical tswj cov txheej txheem)lossis ib txwm q550nh rau cov qauv lis finer grain.
Zam kev ntse me nyuam yaus lossis kev ntxhov siab ntawm kev tsim qauv.
Ua ntej - kub rau100-150 degreethaum vuam hauv qab -10 degree.
4. Tiag - ntiaj teb kev ua haujlwm
Cov Kev Siv Zoo: Txuas hniav hauv Scandinavia (-40 degree), cov khoom siv mining hauv Canada.
Yeej tsis yog: Feem ntau txuas rau kev siv vuam txom nyem lossis tsis kho cov npoo ntoo hauv subzero Temps.
