I. Cov Khoom Siv Xwm thiab Cov Khoom Tseem Ceeb
Q1: Dab tsi yog ONCOY tsim logic thiab cov ntsiab lus tseem ceeb ntawm 9266 cov yeeb nkab steel?
A1:
ASTM A 519 9266 yog ib tug ultra -}}} molybdenum {}} vanadium alloy steel yeeb nkab. Nws muaj pes tsawg leeg (0.62-0.68% c, 0.75% cr, 0.15-0.25% mo, 0.15-0.20% v) muaj peb lub tshuab engineering:
Qhov kawg lub zog: tom qab kho cua sov, lub zog tensile loj dua los yog sib npaug ntawm 2025), thiab cov nyiaj tau los ntawm 2025), thiab cov txiaj ntsig zoo tshaj lossis sib npaug nrog 1150 mpa;
Kev tawg hauv lub hardness liab: Molybdenum - vanadium complex carbides tuav lub siab hairs ntawm hrc45+ ntawm 600 degree;
Dynamic load Kuj: kev sib cuag kev ua qaug zog lub neej yog 50% ntev dua li cov neeg coj ua cov hlau (xws li 52100).
Cov Kev Siv Raug:
Ultra - hnyav - Luag Mill Txhawb Yob Mandrels;
High - kub cov kabmob sib tw rau aerospace tshuab;
Tururine laum rume rau hauv tob - Lub Ntiaj Teb Drilling. Ii. Kev ua tau zoo nrog cov khoom siv sib tw
Q2: Cov ntsiab lus sib txawv ntawm 9266 thiab bells li cas xws li 52100 thiab m50?
A2:
Compostert Spectral ntsuam xyuas:
9266: Nws cov ntsiab lus carbon (0.65%) yog siab dua 52100 (1.0% c), tab sis nws tau qis dua cov ntsiab lus chromium, cia siab rau ntawm Molybdenum thiab Vanadium rau thermal stability.
M50: muaj 4% co ua rau nws kim heev, thaum 9266 ua tiav 80% ntawm kev ua tau zoo ntawm tsuas yog 50% ntawm tus nqi los ntawm Vanadium MicrooLoying.
Kev Ua Tau Marints:
Siab - kub hnav tsis kam: m50> 9266> 52100 (9266 muaj qhov txiaj ntsig tseem ceeb dua 400 degree).
Txoj kev cia siab tiv thaiv: 9266 qhov kev cuam tshuam lub zog ntawm -20℃yog ntau dua los yog sib npaug nrog 25j, farIn zoo dua rau 10j).
III. Niaj hnub evolution ntawm kev kho cua sov
Q3: Dab tsi hauv kev nrhav hluav taws xob yuav pom hauv kev kho cua sov rau 9266 kav hlau hauv 2025? A3:
Tus txheej txheem Benchmark:
Austenitization: 880-900 Degree X 1.2h / 25mm (xav tau kev tiv thaiv hydrogen haydrogen tiv thaiv kom tiv thaiv Decarburization);
Quenching: siab {- kub roj quenching (20 bar nitrogen) los txo kev puas tsuaj rau 0.05mm / m;
Tempering: Triple Tempering (180 Degree + 350℃+ 500 degree) kom tshem tawm 99% ntawm kev khaws cia ntawm Austened Austenite.
Frontier tawg:
Electron nqaj melting (EBM) kev kho hauv lub zos;
Quantum suav - Kev pab theem hloov pauv (nanometer {{1} nplai qhov yog).
IV. Puv lub neej zoo tswj
Q4: Dab tsi yog qhov tseem ceeb tswj cov lag luam rau 9266 kav hlau steel los ntawm smelting kom tiav khoom?
A4:
Metallurgical theem:
Nqus tau hais lus melting melting (vim) + electroslag remelting (ESR) Dual Program;
Incalusion laser hauv - Situ hloov kho (Al₂o₃ → spheroidized calcium aluminate). Ua theem:
Txias dov + Cryogenic kev kho (-196℃× 8h) los ua kom zoo dua cov carbides;
X - ray diffractaction puv {{}}}} seem seem kev ntxhov siab.
End - ntawm - kab ntawv pov thawj:
Rolling hu rau kev qaug zog kev sim (600 MPA / 3000 RPM, lub neej ntau dua lossis sib npaug rau 1 × 10⁷.
Auger Electron spectroscopy (AES) ntawm cov nplej sib txawv cais.
V. Kev Kawm Ua Tsis Raug Kawm Engineering Kev Kawm
Q5: Yuav ua li cas thiaj hais micropitting tsis ua hauj lwm hauv 9266 kav hlau siv hauv Aerospace bearings?
A5:
Kev ua haujlwm Automatic:
Ciam teb lubrication tsis ua hauj lwm hauv lub tshuab nqus tsev → sab npoo micriagack kev pib (qhov tob tshaj lossis sib npaug ntawm 10μm).
Kev tsim tawm tshiab:
Cov texturing saum npoo: laser - tshuab}}} pits (50μm intere (50μm intere (50μm intere) rau cov roj cia;
Txheej thev naus laus zis: pob zeb diamond - zoo li cov pa roj (DLC) zaj duab xis txo kev sib txhuam ua kom sib txhuam kom 0.05;
Khoom Hloov Kho: ntxiv 0.05% y los ua kom muab faib cov carbide carbide. Kev Tsim Kho Kev Lag Luam Rau 2025:
Mem - Raws li kev pib hnav kev saib xyuas cov partor partic.
