9Cr18 ndi 440C zonse ndi mitundu ya chitsulo chosapanga dzimbiri cha martensitic, zomwe zikutanthauza kuti zonse zimaumitsidwa ndi kutentha ndipo zimadziwika ndi mphamvu zawo zapamwamba komanso kukana dzimbiri.
9Cr18 ndi440CZili m'gulu la zitsulo zosapanga dzimbiri za martensitic, zodziwika bwino chifukwa cha kuuma kwawo kwapadera komanso kukana kuvala pambuyo pozimitsa, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito kwambiri. Zipangizo zonsezi zimatha kukhala zolimba ngati HRC60° kapena kupitirira apo pambuyo pa kutentha. 9Cr18 imadziwika ndi kuchuluka kwa kaboni ndi chromium yambiri, zomwe zimapangitsa kuti ikhale yoyenera kupanga zinthu zomwe zimawonongeka kwambiri, zolemera kwambiri, komanso malo osawononga, monga zida zodzilamulira zokha. Komabe, imatha kusungunuka ikakumana ndi madzi kapena nthunzi ya madzi, zomwe zimapangitsa kuti igwiritsidwe ntchito m'malo omwe kukhudzana ndi chinyezi kumachepa.
Kusiyana kwa kapangidwe ka mankhwala
| Giredi | C | Cr | Mn | Si | P | S | Ni | Mo |
| 9Cr18 | 0.95-1.2 | 17.0-19.0 | 1.0 | 1.0 | 0.035 | 0.030 | 0.60 | 0.75 |
| 440C | 0.95-1.2 | 16.0-18.0 | 1.0 | 1.0 | 0.040 | 0.030 | 0.60 | 0.75 |
Powombetsa mkota,Chitsulo chosapanga dzimbiri cha 440Cnthawi zambiri zimakhala zolimba kwambiri komanso zotsutsana ndi dzimbiri pang'ono poyerekeza ndi 9Cr18, koma zipangizo zonse ziwirizi ndizoyenera kugwiritsidwa ntchito m'njira zosiyanasiyana pomwe magwiridwe antchito apamwamba komanso kulimba ndikofunikira.
Nthawi yotumizira: Epulo-02-2024