Titanium alloy vuam tshuab: tawg los ntawm cov txheej txheem bottlenecks thiab ua tiav kev txawj ntse thiab meej tswj

Titanium alloys, nrog rau lawv lub zog tshwj xeeb, kev tiv thaiv corrosion, thiab biocompatibility, tau dhau los ua cov ntaub ntawv tseem ceeb uas tsis tuaj yeem hloov pauv hauv aerospace thiab kev kho mob. Txawm li cas los xij, thaum lub sij hawm tsim khoom siv tshuaj ntxiv, cov khoom siv no yooj yim rau kev tsim cov qauv siv lead ua cov qauv coj mus rau -zoo li cov ncuav qab zib txiav los ntawm cov kab sib txuas zoo sib xws. Qhov microstructure no ua rau cov khoom tawg yooj yim raws li cov ciaj ciam ntawm cov qoob loo thaum raug thauj khoom, txo nws cov khoom siv dag zog thiab kev ntseeg siab.

 

Tsis ntev los no, Harbin lub koom haum thev naus laus zis thiab Politecnico di Milano tau tshaj tawm txoj kev tshawb fawb hauv phau ntawv xov xwm thoob ntiaj teb "The International Journal of Advanced Manufacturing Technology", uas tau coj "kev ua haujlwm zoo" rau titanium alloy additive manufacturing - siv pulsed micro- laser hlau deposition tshuab los hloov cov nplej ntawm Ti-6Al-4V alloy los ntawm "tsis ntev nplej" tsuas muaj zog tab sis kuj zoo ib yam hauv kev ua tau zoo!

Pab pawg tshawb fawb los ntawm Harbin Institute of Technology thiab Politecnico di Milano, luam tawm nyob rau hauv International Journal of Advanced Manufacturing Technology, tau hloov pauv lub teb ntawm titanium alloy additive manufacturing. Siv cov txheej txheem pulsed micro- laser hlau deposition tshuab, lawv tau ua tiav ib qho kev hloov pauv ntawm microstructure ntawm Ti-6Al-4V alloy, hloov cov kab lis kev cai kab lis kev cai rau hauv cov qauv equiaxed, zoo li reshaping neatly aligned xaum kab rau hauv cov duab ntawm plump nplej nplej. Qhov kev ua kom zoo ntawm cov qauv no tsis yog tsuas yog txhim kho cov khoom siv lub zog, tab sis kuj ua tiav qhov sib npaug ntawm cov khoom, muab cov kev daws teeb meem txhim khu kev qha rau cov kev siv high-end xws li aerospace thiab kev kho mob cog.

1. Triple technical barriers rau titanium alloy vuam

Titanium alloys muaj cov tshuaj zoo heev inertness ntawm chav tsev kub, tab sis thaum vuam kub siab tshaj 800 degree, lawv cov khoom siv tau hloov pauv, uas ua rau peb cov txheej txheem tseem ceeb:

a. Oxidation pollution tswj

Thaum kub siab, titanium reacts hnyav nrog oxygen, tsim ib txheej titanium oxide (TiO₂). Cov khoom siv iav no ua rau cov khoom siv hluav taws xob tsis zoo ntawm cov vuam -thaum cov pa oxygen hauv cov vuam ntau tshaj 0.15%, cov khoom cuam tshuam qhov hnyav poob qis dua 50%.

b. Hydrogen embrittlement rhiab heev

Thaum lub sij hawm vuam, hydrogen- muaj cov khoom xws li ya raws thiab roj decompose kom tso tawm cov hydrogen atoms. Cov atoms nkag mus rau hauv cov iav siv lead ua los tsim hydrides (TiH₂), ua rau muaj kev puas tsuaj rau cov khoom siv plasticity thiab toughness. Tshwj xeeb tshaj yog nyob rau hauv qis kub, hydrogen embrittlement tuaj yeem ua rau tawg tam sim ntawd, tsis muaj cov cim pom tseeb ntawm cov yas deformation ntawm cov pob txha tawg.

c. Thermal stress cracks

Txawm hais tias titanium alloys tsis tshua muaj coefficient ntawm thermal expansion, qhov kub thiab txias hauv cheeb tsam cuam tshuam nrog vuam tseem tuaj yeem tsim cov thermal gradients tseem ceeb. Thaum lub tshav kub input tus nqi siab tshaj cov khoom yas deformation muaj peev xwm, residual stress concentrations nyob rau hauv lub tshav kub- cuam tshuam cheeb tsam, thaum kawg ua rau intergranular tawg propagation. Siab - vuam ceev lossis qhov txias tsis sib xws tuaj yeem ua rau qhov tshwm sim no hnyav dua.

 

2. Plaub core technical paths ntawm titanium alloy vuam tshuab

Nyob rau hauv teb rau peb qhov tseem ceeb kev bottlenecks nyob rau hauv titanium alloy vuam, niaj hnub tsim tau tsim plaub hom phiaj kev daws teeb meem:

a. Gas tungsten arc vuam (TIG)

Raws li tus qauv kub rau precision vuam, nws yog tshwj xeeb tshaj yog haum rau nyias - cov qauv phab ntsa hauv qab 3 hli (xws li kev cog qoob loo kho mob thiab aerospace precision Cheebtsam). Nws cov txiaj ntsig tseem ceeb yog:

Arc stability nrog qhov tseeb ntawm ± 5%

Thaum tshav kub kub input tuaj yeem tswj tau raws li qhov ntau ntawm 0.5-2kJ / mm

Txais yuav triple kev tiv thaiv system:

• Main nozzle argon tiv thaiv (15-25L / min)

• Sab nraub qaum argon filling tiv thaiv (5-10L / min)

• Trailing hood tiv thaiv (npog kub> 400℃cheeb tsam)

b Nqus electron beam vuam

Los ntawm kev tsim ib qho ultra- ib puag ncig lub tshuab nqus tsev siab (tsawg dua lossis sib npaug li 1 × 10⁻³Pa), peb tuaj yeem ua tiav:

Electron beam zog ceev ncav cuag 10⁶W / cm²

Qhov sib sib zog nqus qhov tob - rau - qhov dav dav tshaj qhov 10: 1 txwv

Thaum tshav kub kub cuam tshuam cheeb tsam dav<0.5mm

Nws yog tshwj xeeb tshaj yog haum rau cov khoom tseem ceeb -cov kabmob xws li 10-100mm tuab daim hlau thiab foob pob hluav taws roj tso tsheb hlau luam.

c. Laser vuam

Siv high- lub zog laser kab teeb (hwj chim 1-20kW) kom ua tiav:

Qhov vuam ceev yog 3-5 npaug ntawm TIG txheej txheem

Thaum tshav kub kub input tuaj yeem tswj tau ntawm 0.1-0.5kJ / mm

Yuav tsum muaj ob txoj kev tiv thaiv huab cua (qhov tseem ceeb tiv thaiv roj + sab tshem tawm roj)

Nws yog feem ntau siv nyob rau hauv ntau lawm scenarios xws li automotive titanium alloy chassis.

d. Diffusion vuam

Rau qhov sib txawv ntawm cov khoom siv sib txuas (xws li titanium-steel, titanium- tooj liab):

Cov txheej txheem parameter qhov rai: 800-950℃/ 10-50MPa

Lub zog sib txuas sib txuas tuaj yeem ncav cuag ntau dua 85% ntawm cov khoom siv niam txiv

Zoo inhibit qhov tsim ntawm intermetallic compounds

Nws yog irreplaceable nyob rau hauv teb nrog siab biocompatibility yuav tsum, xws li kho mob pob txha rau tes.

3. Titanium Alloy Vuam txheej txheem Parameter Standards

a. Tam sim no Specifications

1 hli phaj: 50-80A

3 hli phaj: 120-150A

Lus Cim: Ntau dhau tam sim no yuav ua rau cov nplej coarsening, thaum tsis txaus tam sim no yuav cuam tshuam rau qhov tob tob

b. Kev tiv thaiv roj

Gas purity: Ntau dua lossis sib npaug rau 99.99%

Flow tswj: 20-30L / min

Lub luag haujlwm tseem ceeb: Ncua roj kaw rau 5-10 vib nas this tom qab vuam

c. Vuam ceev

Nyias-walled qhov chaw: 50-100mm/min

Thick phaj: 30-50mm / min

Kev cuam tshuam nrawm: nrawm dhau yuav yooj yim tsim cov pores, qeeb dhau yuav nthuav dav tshav kub cuam tshuam

d. Groove kev kho mob

Groove type: V-groove

Lub kaum sab xis: 60-70 degree

Blunt ntug loj: 0.5-1mm

Kev tu kom huv: Cov cuab yeej stainless hlau yuav tsum tau ua tiav rau cov hlau nplaum, thiab kev ua haujlwm barehanded yog nruj me ntsis txwv.

4. Titanium alloy weld zoo qib kev txiav txim tus qauv

a. Nyiaj - dawb weld

Nta: Uniform metallic luster

Qib Qib: Zoo heev

Daim ntawv thov teb: siab -xav tau scenarios xws li aerospace

b. Lub teeb daj weld

Feature: Me ntsis oxidized xim

Qib Qib: tsim nyog

Scope ntawm daim ntawv thov: Cov khoom siv niaj hnub siv

c. Golden -ntsuab weld

Cov yam ntxwv: pom tseeb oxidation thiab discoloration

Qib zoo: yuav tsum tau kuaj

Cov txheej txheem ua tiav: Cov khoom siv tshuab yuav tsum raug txheeb xyuas

d. Xiav-grey weld

Yam ntxwv: oxidation hnyav

Qib Qib: tsis tsim nyog

Kev ntsuas ntsuas: rov ua haujlwm tam sim

Kev txhim kho technology

Niaj hnub no welding tshuab tau ua tiav peb txoj kev loj hlob:

Parametric tswj system hloov kev txiav txim empirical

Lub tshuab nqus tsev vuam robots ua tiav micron- qib raug

Tiag -lub sij hawm oxidation xyuas qhov system kom ruaj khov zoo

Nrog rau txoj kev loj hlob ntawm cov teb tshiab xws li lub zog tshiab tsheb thiab cov cuab yeej siv hluav taws xob hydrogen, titanium alloy vuam thev naus laus zis yuav txuas ntxiv tsim kho tshiab thiab txhawb kev siv cov khoom siv siab no hauv kev lag luam ntau dua.

Txawm li cas los xij, yog tias koj xav tau cov ntaub ntawv hais txog titanium, xws li titanium daim hlau, tuav, xov hlau, foils, thiab lwm yam, koj tuaj yeem tshawb xyuas peb lub vev xaibwww.major-ti.comthiab tiv tauj peb txhua lub sijhawm. Peb yuav ua qhov zoo tshaj plaws los pab koj thiab muab cov khoom zoo tshaj plaws thiab tus nqi. Txais tos tuaj xyuas peb!

Nov yog cov ntsiab lus luv luv ntawm peb lub tuam txhab!
 

1. Cov khoom tseem ceeb thiab cov cuab yeej technology zoo

Baoji Mingjie Titanium Material Technology Co., Ltd. tsom rau titanium thiab titanium alloy ua, thiab nws cov khoom tseem ceeb muaj xws li titanium daim hlau, rods, xov hlau thiab cov qauv, uas yog dav siv nyob rau hauv tshuaj, kho mob, aerospace thiab lwm yam teb. Nws lub ntsiab technology yog reflected nyob rau hauv:

Kev sib tsoo hauv cov txheej txheem vuam: Triple argon roj tiv thaiv TIG vuam (argon roj ntws tus nqi 15-25L / min) yog siv los tswj cov pa oxygen ntawm cov vuam mus rau 0.08% -0.12%, uas ua kom muaj kev cuam tshuam zoo ntawm TC4 titanium alloy (Ntau dua lossis sib npaug rau 90J / cm² los ntawm lub teb chaws tus qauv 5%).
Kev sib koom ua ke ntawm kev lag luam: Kev vam khom rau Baoji Titanium Valley Industrial Cluster, peb koom tes nrog Baotian Kev Tshawb Fawb Lub Tsev Haujlwm los tsim cov txheej txheem qis- cua sov input vuam los daws cov teeb meem ntawm nyias phaj deformation, thiab cov khoom tau siv rau UAV lub teeb yuag cov qauv.

2. Kev tswj xyuas zoo thiab kev lag luam ntawv pov thawj
Traceability ntawm tag nrho cov txheej txheem: los ntawm titanium sponge raw cov ntaub ntawv rau cov khoom tiav implanted nrog laser traceability codes, nyob rau hauv txoj kab nrog AS9100D aviation qauv, lub porosity ntawm lub vuam ntawm titanium alloy aerospace roj tank tsawg dua los yog sib npaug li 0.5% (2% tso cai los ntawm lub teb chaws tus qauv tsawg dua los yog sib npaug).
Green manufacturing: Tus nqi rov ua dua ntawm vuam titanium chips mus txog 85%, uas yog 20 feem pua ​​​​cov ntsiab lus siab tshaj qhov nruab nrab ntawm kev lag luam, thiab ultra- vuam txheej txheem kub tsis tshua muaj (-196 degree) tau sim kom tau raws li qhov xav tau ntawm cov khoom siv hluav taws xob hydrogen.
3. Kev sib tw ua lag luam thiab pab pawg neeg siv khoom
Cov txiaj ntsig hauv cheeb tsam: Raws li Baoji Titanium Valley kev lag luam, nws cov neeg siv khoom suav nrog cov khoom siv tshuaj lom neeg, cov chaw tsim khoom siv kho mob thiab cov chaw muag khoom hauv aerospace.
Forward-nrhiav thev naus laus zis: Npaj rau kev tsim kom muaj kev ua qauv vuam ntse, npaj kom paub txog kev tsim cov titanium tsis siv neeg- hlau sib txuas hauv xyoo 2026, thiab nteg tawm lub zog tshiab thiab sib sib zog nqus - cov khoom siv hauv hiav txwv.

4. Kev lag luam xwm txheej thiab kev tsim kho tshiab muaj peev xwm

Baoji Titanium Kev Lag Luam tau coj cov qauv ntawm 4 thoob ntiaj teb cov qauv thiab 74 lub teb chaws tus qauv, thiab Mingjie tau ntxiv dag zog rau kev tsim kev lag luam ncig los ntawm kev koom tes hauv kev hloov kho thev naus laus zis hauv cheeb tsam (xws li cov qauv siv titanium ingot ). Nws cov khoom siv titanium qhia qhov sib txawv ntawm kev sib tw hauv kev tswj xyuas qhov tseeb (micron-theem vuam) thiab cov ntawv thov hauv cov chaw tawm tshiab (xws li hydrogen zog cia tank).

Tom qab ntawd, ntawm no yog peb cov khoom tso saib, cov zaub ntawm peb cov khoom tseem ceeb