I. Txhim kho cov txheej txheem ua haujlwm ib txwm ua thiab kev ua tiav hauv cov txheej txheem tshiab
Kev tsim kho tshiab hauv cov txheej txheem ua haujlwm kub
- Rolling es tsis txhob forging technology
Lub transverse reversible blooming zeb tsim los ntawm MCC Beijing Iron & Steel Design & Research Institute Co., Ltd. ua tiav "rolling es tsis txhob forging" ntawm loj - loj titanium alloy tuav los ntawm kev ua haujlwm xws li kev txav nrawm, steel ntuav, steel flipping thiab linear mov. Piv txwv li, Ø900mm round ingots tuaj yeem ncaj qha dov rau hauv Ø85 ~ 350mm tuav, txo lub voj voog ntau lawm los ntawm 50% thiab kev siv hluav taws xob los ntawm 20%. Cov thev naus laus zis no, raws li lub tswv yim ntawm qhov ze ntawm - qhov kub thiab txias tsis tu ncua, tswj qhov kub thiab txias deformation thiab sib txuas cov qauv dov mills kom ua tiav ntau- ntau yam sib xws, nrog microstructure ncav cuag GJB2218A2 tus qauv.
- Optimization ntawm kub tuag forging txoj kev
Lub zos loading kub tuag forging tshuab, los ntawm stepwise ua ntej - sib sau thiab zaum kawg forming, zam lub disorderly hlau ntws los ntawm tag nrho cov loading, nce cov khoom siv los ntawm 30% thiab ho txhim kho lub uniformity ntawm microstructure ntawm forged qhov chaw. Piv txwv li, tom qab kub tuag forging ntawm titanium alloy tuav, thawj theem yog faib nyob rau hauv ib tug equiaxed yam tsis muaj teeb meem tsis xws luag.
2. Kev txhim kho hauv kev txiav kev ua haujlwm zoo
- Cov cuab yeej txiav tshwj xeeb ua tiav
Zhuzhou Pob Zeb Diamond's YBS303S titanium alloy milling qib txais lub zog thiab tawv substrate nrog super- du PVD txheej. Nyob rau hauv qhov ntxhib milling ntawm TC4, lub cuab tam lub neej yog nce los ntawm 2 lub sij hawm thiab kev txiav efficiency yog txhim kho los ntawm ntau tshaj 1 lub sij hawm. Nws APKT lub xub pwg milling cutter yog siv nyob rau hauv kev ua aviation ncej tav strips, nrog ib tug txiav qhov tob txog li 30 hli thiab ib tug nto roughness ntawm Ra tsawg dua los yog sib npaug zos rau 0.8μm.
- Wave- cov cuab yeej zoo li tus thiab sib cuam tshuam
Tus tshiab tungsten cobalt nthwv dej-ntug txiav cuab yeej, los ntawm yoj- zoo li tus hniav tsim (wavelength 12-15mm, amplitude 0.5-1mm), ua ke nrog kev sib tshuam pub (retracting 0.1-0.2mm tom qab txhua qhov txiav qhov tob ntawm 0.3-0.5mm), qhov tsim nyog ntawm kev vibration thiab txiav yog tsim nyog. nyias-walled sib sib zog nqus kab noj hniav qhov chaw, nrog ib tug cuab tam lub neej nce 3 zaug.
II. Frontiers ntawm Precision Machining Technology
Additive manufacturing thiab composite processing
Hlau Txhaj Moulding (MIM)
Cov txheej txheem nyuaj yog tsim los ntawm kev sib xyaw titanium alloy hmoov nrog binder thiab txhaj tshuaj molding. Piv txwv li, nws yog siv nyob rau hauv nruab nrab thav duab ntawm lub xov tooj ntawm tes thiab orthopedic sib koom qhov chaw, nrog rau cov khoom siv ntawm ntau tshaj 95% thiab tus nqi txo ntawm 40%. Apple siv MIM titanium alloy los tsim daim npav daim npav thiab lub nplhaib lub koob yees duab, txhawb nqa lub teeb yuag ntawm cov neeg siv khoom siv hluav taws xob.
- Laser Directed Energy Deposition (L-DED)
Lub combustion chamber ntawm SpaceX lub Raptor cav yog luam tawm nrog ib tug titanium alloy qauv featuring cua txias raws los ntawm L-DED technology, txo ntau tshaj 1,000 tsoos forging thiab vuam txheej txheem thiab txo qhov hnyav los ntawm 40%. Ua ke nrog tsib -axis linkage, nws muaj peev xwm ua tau siab -precision forming ntawm complex sab hauv kab noj hniav qauv (seem yuam kev ± 0.1mm).
2. Superplastic Forming thiab Surface Engineering
- Multiphase nanostructured titanium alloy
Cov titanium alloy tshiab tsim los ntawm Lub Tsev Haujlwm ntawm Kev Tshawb Fawb Hlau, Suav Academy ntawm Kev Tshawb Fawb, muaj qhov elongation ntawm ntau dua 900% ntawm 750℃thiab tus nqi ntawm 1 s⁻¹. Qhov kub deformation yog 250℃qis dua li cov tsoos titanium alloys, ua rau nws tsim nyog rau kev tsim cov compressor Cheebtsam hauv aero xyaw. Piv txwv li, lub stator ntawm ib qho qauv ntawm lub cav tau tsim los siv cov cuab yeej no, uas ua rau 15% qhov hnyav txo thiab tsis muaj oxidation tsis xws luag.
- Atomic layer deposition (ALD)
Depositing nanoscale Al₂O₃ txheej (1-100 nm tuab) nyob rau saum npoo ntawm titanium alloys ncua lub ntsev tsuag tshuaj ntsuam lub neej los ntawm 10 zaug thiab ua tiav ib qho kev cuam tshuam infrared ntau dua 95%. Nws yog siv rau lub plhaub ntim ntawm avionics kom ua tiav hluav taws xob cais ntawm qib nti.
Iii. Kev Tshawb Fawb Technology thiab Kev Tswj Xyuas Zoo
Tsis yog -kev kuaj kev puas tsuaj
Kev kuaj ultrasonic
Nws yog qhov tsim nyog rau kev kuaj pom cov khoom siv titanium, nrog rau qhov siab tshaj plaws (muaj peev xwm txheeb xyuas cov kab nrib pleb me dua 0.1mm), tus nqi qis thiab muaj zog sib raug zoo nrog cov complex - zoo li workpieces. Piv txwv li, aviation- qib titanium alloy tuav tau tshuaj xyuas los ntawm cov dej immersion ultrasonic system, thiab sab hauv zoo ntawm 6-meter-ntev daim hlau yog saib xyuas hauv lub sijhawm los ntawm kev tsom xam waveform.
"Kev kuaj hluav taws xob"
X-rays tsim nyog rau kev tshuaj xyuas ntawm daim hlau nyias thiab cov welded pob qij txha, thiab tuaj yeem txheeb xyuas qhov siab - ntom ntom thiab qhov me me. Gamma rays muaj lub zog nkag tau zoo dua thiab tsim nyog rau cov tuab - cov khoom siv phab ntsa (xws li aerospace roj tso tsheb hlau luam), nrog kev tshawb pom qhov tseeb ntawm ± 0.05mm. Piv txwv li, titanium alloy ncej ntawm Boeing 787 fuselage raug tshuaj xyuas los ntawm gamma-ray kom ntseeg tau tias tsis muaj qhov tawg sab hauv.
2. Microscopic thiab nto tshuaj xyuas
- Laser interferometer
Qhov chaw micro-qhov profile ntsuas qhov tseeb ncav cuag ± 0.1nm, thiab nws yog siv rau kev kuaj pom qhov tiaj tus ntawm micro- qhov arrays hauv femtosecond laser ua. Piv txwv li, qhov flatness ntawm grooves ntawm qhov chaw kho mob titanium alloy pob txha screws yuav tsum tau tswj nyob rau hauv ± 0.5μm.
Atomic Force Microscopy (AFM
Qhov saum npoo roughness raug kuaj pom mus rau qib atomic (Ra<0.1nm) for the uniformity analysis of ALD coatings. AFM scanning of the surface of a certain medical implant shows that the Ra of the Al₂O₃ coating is 0.03nm, which complies with the ISO 13485 standard.
Iv. Green Manufacturing thiab Intelligent Upgrading
1. Khib titanium siv tshuab
Nqus melting + electron beam refining
Dongbang Titanium Kev Lag Luam cov txheej txheem rov ua dua tshiab ua kom huv cov khoom siv titanium ntau dua 99.5%, txo cov nqi los ntawm 50%, txo qis kev siv hluav taws xob thiab ua tiav xoom carbon emissions. Cov ntaub ntawv titanium rov ua dua tau siv rau qhov tsaws iav ntawm Boeing's 787 thiab Apple's 3D cov khoom luam tawm.
2. ntse tswj qhov system
- Tag nrho- txheej txheem ntse tswj ntawm aviation- qib titanium alloy
Lub tshuab ntse tsim los ntawm Tuam Tshoj Metallurgical Group Corporation Jingcheng koom ua ke ib qho -nias dov, yoog raws simulation dov thiab dynamic ntau- kev saib xyuas kev taw qhia, ua tiav tag nrho - txheej txheem automation hauv kev tsim cov titanium alloy tuav thiab cov xov hlau. Piv txwv li, Western Superconducting ntau lawm kab tau nce tus nqi tawm mus rau 98.5% los ntawm cov kab ke no, thiab qhov ncaj yog tsawg dua lossis sib npaug li 1.5mm / m.
V. Cov ntaub ntawv thov ib txwm
1. Aerospace teb
- Aerospace cav combustion chamber
Lub Ti-6Al-4V alloy combustion chamber yog luam tawm los ntawm kev siv L-DED technology. Tus tsim ntawm cov cua txias channel ua rau kom cov cua sov dissipation efficiency los ntawm 30%, ua tau raws li qhov siab thrust-rau-hnyav piv xav tau ntawm lub foob pob hluav taws.
- Superplastic molding compressor Cheebtsam
Lub stator ntawm ib qho qauv ntawm lub cav yog ua los ntawm ntau -theem nano-mesh titanium alloy los ntawm superplastic sib sau. Cov txheej txheem hniav yog tsim nyob rau hauv ib qho mus ntawm 750 degree, txo cov neeg kho tshuab ntim los ntawm 70%.
2. Kev kho mob teb
- Personalized orthopedic implants
Tianjin Qingyan Zhishu manufactures acetabular khob prostheses los ntawm electron beam xaiv melting technology. Cov txheej txheem ntxeem tau ntawm qhov chaw (porosity 60-80%) txhawb kev loj hlob ntawm cov pob txha hlwb. Cov ntaub ntawv kho mob qhia tau tias lub sijhawm kho tom qab kho tau luv luv los ntawm 20%.
Kev kho mob titanium alloy pob txha screws
Lub micrometer - theem zawj pob txha screws ua tiav los ntawm femtosecond laser muaj qhov roughness ntawm Ra Less tshaj los yog sib npaug rau 0.1μm thiab 40% nce hauv cov pob txha sib txuas. Lawv tau raug siv rau Straumann implant system hauv Switzerland.
3. Consumer electronics field
- Titanium alloy txawb xov tooj ncej
Ti-6Al-4V nruab nrab thav duab, tsim nrog MIM thev naus laus zis, yog 30% sib zog dua aluminium alloy, muaj qhov tawv tawv uas siab dua ob zaug, thiab nws qhov kev tiv thaiv poob qis dua 99%.
Vi. Kev koom ua ke thev naus laus zis thiab yav tom ntej Trends
- Txheej txheem kev sib koom ua ke: Kev sib xyaw ua ke ntawm cov tsoos dov thiab kev tsim khoom ntxiv (xws li "dov +3D luam ntawv") kom ua tiav nyob ze -net tsim ntawm siab -kev ua tau zoo titanium alloy cov khoom siv. Piv txwv li, "rolling es tsis txhob forging" technology ntawm Tuam Tshoj Metallurgical Group Corporation Jingcheng muab siab - zoo billets rau L-DED, shortening lub zuag qhia tag nrho raug voj voog.
Cov khoom siv tshiab: Kev txhim kho ntawm lub ntiaj teb tsis tshua muaj hloov kho titanium{0}}raws li kev sib xyaw (xws li TC4+ nano Ti₂Cu) tau nce lub zog los ntawm 15-20% thiab tau siv rau hauv aerospace fasteners.
- Kev txawj ntse: Tshuab kev kawm algorithms ua kom zoo rau kev ua haujlwm tsis zoo (xws li kwv yees cov cuab yeej hnav hauv titanium alloy milling), tsav cov txheej txheem ua haujlwm rau kev txiav txim siab tus kheej- ua.
Los ntawm kev sib koom ua ke thev naus laus zis saum toj no, kev ua cov khoom siv titanium tau tsim ib qho kev ua tiav ntawm "txhim kho cov txheej txheem ib txwm muaj + kev ua tiav hauv kev tsim khoom zoo + kev sib koom tes ntsuab thiab txawj ntse", muab siab -kev ua tau zoo thiab qis- cov nqi daws rau thaj chaw xws li aerospace, kev kho mob, thiab cov khoom siv hluav taws xob. Nyob rau hauv lub neej yav tom ntej, nrog rau kev sib sib zog nqus ntawm ultrafast lasers, kev txawj ntse txawj ntse thiab cov ntaub ntawv genome engineering, titanium cov ntaub ntawv ua yuav txuas ntxiv mus rau atomic - theem precision thiab tag nrho - txheej txheem txawj ntse.