9Cr18 ndi 440C ndi mitundu yonse ya zitsulo zosapanga dzimbiri za martensitic, zomwe zikutanthauza kuti onse amaumitsidwa ndi chithandizo cha kutentha ndipo amadziwika chifukwa cha mphamvu zawo zapamwamba komanso kukana kwa dzimbiri.
9k18 ndi440Cali m'gulu la zitsulo zosapanga dzimbiri za martensitic, zodziwika bwino chifukwa cha kuuma kwawo kwapadera komanso kukana kuzima pambuyo pa kuzimitsidwa, zomwe zimawapangitsa kukhala oyenera kugwiritsa ntchito zovala zapamwamba. Zida zonsezi zimatha kukwaniritsa kuuma kwa HRC60 ° ndi pamwamba potsatira chithandizo cha kutentha.9Cr18 imadziwika ndi kuchuluka kwake kwa carbon ndi chromium, ndikupangitsa kuti ikhale yabwino kwambiri popanga zigawo zomwe zimavala kwambiri, zolemetsa kwambiri, komanso malo osawononga, monga kulamulira basi. zigawo za valve. Komabe, imatha kukhala ndi okosijeni ikakumana ndi madzi kapena nthunzi yamadzi, zomwe zimapangitsa kuti zigwiritsidwe ntchito m'malo omwe kukhudzana ndi chinyezi kumachepetsedwa.
Kusiyana kwa mankhwala
| Gulu | C | Cr | Mn | Si | P | S | Ni | Mo |
| 9 mkh18 | 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,440C chitsulo chosapanga dzimbirinthawi zambiri amapereka kuuma kwapamwamba komanso kukana kwa dzimbiri bwinoko pang'ono poyerekeza ndi 9Cr18, koma zida zonsezo ndizoyenera kugwiritsa ntchito mitundu ingapo pomwe magwiridwe antchito apamwamba komanso kulimba ndikofunikira.
Nthawi yotumiza: Apr-02-2024