I. Txoj Kev Txhim Kho Kev Txhim Kho thiab Cov Khoom Siv Ua Haujlwm Zoo
High-kub titanium alloys thiab TiAl intermetallic compounds tau dhau los ua cov ntaub ntawv tseem ceeb rau cov tshiab - tiam dav hlau xyaw thiab siab - qhov kub thiab txias Cheebtsam vim lawv lub zog tshwj xeeb, siab - kub tsis kam, thiab creep resistance. Lawv txoj kev loj hlob tau tsom mus rau:
1. Temperature Bearing Capacity Enhancement:
Tshiab siab - kub titanium alloys (xws li Ti-6242S, Ti-1100) tuaj yeem ua haujlwm ntawm qhov kub li ntawm 520-600℃(piv txog li 450℃rau ib txwm alloys), thaum TiAl alloys (xws li Ti-48Al-2Cr-2Nb) tuaj yeem ua haujlwm ntawm qhov kub ntawm 520-600 degree.
2. Qhov Zoo Tshaj Plaws Lub Teeb Tseem Ceeb:
TiAl muaj qhov ntom ntom (~ 3.9 g / cm³) qis dua npib tsib xee -raws li siab - kub alloys (~ 8.3 g / cm³), tso cai rau 40% -50% qhov hnyav ntawm tib lub zog.
3. Txhim kho Plastic Malleability:
Los ntawm alloying (Nb, Mo, B, thiab lwm yam) thiab microstructure tswj (tag nrho lamellar, nyob ze - qauv), chav - kub elongation ntawm TiAl nce mus rau 1.5% -3.0% (piv rau<1% in the early stages), meeting the requirements of engineering applications.
II. Kev tawg hauv dej-Coj Copper Crucible Nqus Induction Melting (ISM) Pwm Precision Casting Technology
ISM thev naus laus zis tau kov yeej qhov kev sib tw tseem ceeb ntawm titanium alloys 'siab reactivity thiab lawv nyiam ua rau cov crucible, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev tsim khoom siab - kawg cov khoom:
1. Ntshiab Melting:
Cov dej -coj copper crucible ua ib "txheej plhaub", uas cais cov khoom molten los ntawm crucible, txo cov pa oxygen increment (Less tshaj los yog sib npaug li 500 ppm) thiab inclusions, thiab ua rau qaug zog lub neej ntawm cov castings ntau tshaj 20% (cov ntaub ntawv qhov chaw: "Materials").
2. Precise forming of Complex Components:
Ua ke nrog pwm precision casting, nws ua rau qhov ze ntawm -net-puab tsim ntawm complex nyias-walled qhov chaw xws li turbine blades thiab ib qho tseem ceeb disk Cheebtsam, nrog dimensional precision ncav cuag CT7 qib thiab nto roughness Ra tsawg dua los yog sib npaug rau 3.2 μm, txo cov machining 50%.
3. Kev Ua Tau Zoo thiab Kev Txhim Kho Zoo:
Lub peev xwm melting ntawm ISM qhov cub loj yog ntau dua lossis sib npaug li 500 kg (xws li Retech qauv). Tus nqi tsim nyog tau nce mus rau ntau dua 98% (cov txheej txheem ib txwm muaj kwv yees li 85%), thiab cov nqi tsim khoom tau raug txo.
III. Daim ntawv thov piv txwv thiab qhov zoo hauv Aerospace thiab Civil Fields
1. Aerospace Engines (Core Weight Reduction and Efficiency Enhancement)
High -siab compressor hniav:
Lub cav GE GEnx siv TiAl alloy qis-siab turbine blades (qauv Ti-48Al-2Cr-}2Nb), txo qhov hnyav los ntawm 50% piv rau npib tsib xee-raws alloys, thiab nce qhov sib piv rau qhov hnyav.
Manufacturing kom zoo dua: ISM casting ua tiav kev sib sau ua ke ntawm cov hniav nyuaj, tsis txhob vuam tsis xws luag.
Zuag qhia tag nrho hniav disk:
Lub cav Pratt & Whitney GTF ob peb theem kawg ntawm lub siab -siab compressor siv siab- kub titanium alloy (xws li Ti-6-4) rau peev casting ntawm ib qho tseem ceeb hniav disk, txo tus naj npawb ntawm qhov chaw los ntawm 60%, txo qhov hnyav los ntawm 30%, thiab kev txhim kho rotor rigidity "Tsev kawm ntawv" cov txheej txheem.
2. Kev nthuav dav hauv Civil Fields (High-Cov khoom muaj nqis)
Automotive turbochargers:
Mitsubishi thiab BorgWarner siv TiAl turbine rotors (xws li Ti-47Al-2W-0.5Si), muaj peev xwm tiv taus 900℃tso pa roj, nce kev sib hloov ceev los ntawm 15% thiab teb ceev los ntawm 20% (cov ntaub ntawv: SAE Technical Papers).
Kev tsim khoom kom zoo dua: ISM precision casting ua kom muaj kev sib npaug sib npaug.
Biomedical implants:
Siab -lub zog beta titanium alloy (xws li Ti-13Nb-13Zr) tom qab ISM melting muaj cov ntsiab lus tsis tshua muaj impurity, nrog rau kev cog qoob loo qaug zog> 10⁷ cycles, superior rau ASTM F136 tus qauv los ntawm 30%.
IV. Txoj Kev Loj Hlob
1. Khoom siv optimization:
Develop O-phase alloys (Ti₂AlNb-based) with higher operating temperatures (>650 degree) thiab tiv thaiv -oxidation TiAl alloys (xws li cov uas muaj Si thiab Ag).
2. Intelligent Manufacturing Upgrade:
Kev koom ua ke ISM nrog 3D luam ntawv xuab zeb pwm thev naus laus zis los txo qhov kev loj hlob ntawm cov txheej txheem castings los ntawm 60%, ua kom cov lus teb sai rau cov khoom me me (Kev Tshawb Fawb Txog Kev Tshawb Fawb: "Additive Manufacturing").
3. Tus nqi tswj:
Ua kom zoo dua cov txheej txheem pov tseg (xws li EBCHM remelting), txhawm rau txo cov nqi raw khoom los ntawm 30% thiab nthuav dav kev lag luam pej xeem (xws li corrosion- cov khoom tiv thaiv rau lub zog hauv av).
Xaus
High - kub titanium alloys thiab TiAl intermetallic compounds tau ua tiav siab purity thiab complex qauv tsim los ntawm ISM peev casting tshuab. Lawv tau raug txheeb xyuas rau lawv qhov hnyav thiab kev ua tau zoo hauv cov khoom tseem ceeb xws li dav hlau cav hniav, ib qho disk, thiab tsheb turbines. Nyob rau yav tom ntej, kev tsim kho tshiab ntawm cov khoom siv tshuab thiab kev sib koom ua ke ntawm kev tsim khoom siv thev naus laus zis yuav txhawb nqa lawv daim ntawv thov dav dua hauv qib siab - cov cuab yeej siv kawg thiab pej xeem.
Cim npe nrov: siab- kub titanium alloy, Tuam Tshoj siab- kub titanium alloy manufacturers, lwm tus neeg, Hoobkas
