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Zipangizo zogwirira ntchito bwino kwambiri 12CrNi3A alloy structural steel
Kufotokozera
12CrNi3A ndi chitsulo chapamwamba kwambiri chomwe chimapangidwira ndi mankhwala ake komanso momwe zimagwirira ntchito zimatsatira zofunikira za muyezo wankhondo wa dziko lonse wa GJBB1951-94. Chifukwa cha magwiridwe antchito ake abwino kwambiri, chida ichi chimagwiritsidwa ntchito kwambiri popanga zida zankhondo, ndege, zida, ndi zida zina zapamwamba.
Zinthu zazikulu zophatikizira zitsulo za 12CrNi3A zikuphatikizapo chromium (Cr) ndi nickel (Ni), ndipo kapangidwe kake ka mankhwala ndi:
| Kaboni (C) | Chromium (Cr) | Nikeli (Ni) | Manganese (Mn) | Silikoni (Si) |
| 0.10%~0.16% | 0.60%~0.90% | 2.75%~3.25% | 0.30%~0.60% | 0.17%~0.37% |
Kuonjezera chromium kumawonjezera kulimba kwa chitsulocho komanso kukana dzimbiri, pomwe nickel imawonjezera kwambiri kulimba kwa chinthucho komanso magwiridwe antchito otsika kutentha. Kapangidwe kabwino kameneka kamathandiza chitsulo cha 12CrNi3A kukhalabe ndi mphamvu zambiri komanso kukhala ndi pulasitiki wabwino komanso kulimba.
Kuchiza kutentha ndi mphamvu zamakina
Chitsulo cha 12CrNi3A nthawi zambiri chimakonzedwa ndi njira yoziziritsira komanso yotenthetsera kutentha pang'ono kuti chikhale ndi kapangidwe ka martensite kofewa, motero chimapangitsa kuti chikhale cholimba komanso cholimba kwambiri. Malinga ndi muyezo wa GJBB1951-94, mawonekedwe ake amakanika nthawi zambiri amafunikira motere:
| kulimba kwamakokedwe | Mphamvu yobereka | Kutalikitsa | Kulimba kwa mphamvu |
| ≥980 MPa | ≥685 MPa | ≥11% | ≥86 J |
Zipangizozi zilinso ndi mphamvu zabwino zosungira mafuta. Pambuyo posungira mafuta ndi kuzimitsa, pamwamba pake pamakhala kuuma kwambiri komanso kusawonongeka, pomwe pakati pake pamakhala kulimba kokwanira, zomwe zimapangitsa kuti pakhale zida zopangira zinthu zomwe zimapirira kukangana kwakukulu komanso kugwedezeka.
Mapulogalamu Odziwika
Chifukwa cha ntchito yake yabwino kwambiri, chitsulo cha 12CrNi3A nthawi zambiri chimagwiritsidwa ntchito popanga zinthu zofunika monga magiya, shafts, ndodo zolumikizira, ndi mapini. Kudalirika kwake ndi kulimba kwake kwawonetsedwa mokwanira mu zida zankhondo, makamaka mu makina otumizira matanki, magiya a injini ya ndege, ndi zida zolandirira ndege.
Chidule
Monga chinthu chomwe chimalimbikitsidwa ndi muyezo wankhondo wa dziko lonse wa GJBB1951-94, chitsulo chopangidwa ndi aloyi cha 12CrNi3A chili ndi kapangidwe ka sayansi, magwiridwe antchito okhazikika komanso ukadaulo wokhwima, ndipo chimatha kukwaniritsa zofunikira zolimba za zida zapamwamba kuti zikhale zolimba kwambiri, zolimba komanso zolimba.