Yuav ua li cas xaiv Txoj Cai Titanium Vuam Hlau

Nyob rau hauv high -}}}} Kev tsim khoom lag luam xws li lawv lub zog tseem ceeb, thiab kev ua haujlwm tseem ceeb, corrosion tsis kam, thiab biocompatibility. Txawm li cas los xij, Titanium Vuam cov txheej txheem yog qhov kub heev: thaum muaj pa taws, thiab nitrogen, siab coarsening ntxig rau hauv tshav kub} 2}} be} cuam tshuam cheeb tsam. Yog li ntawd, kev xaiv ntawm titanium vuam hlau tsis yog tsuas yog qhov tseem ceeb rau kev siv vuam zoo tab sis kuj yog rau qhov ua tau zoo ntxiv.

Cov Khoom Siv Txuas

Titanium alloys tau muab faib ua kev lag luam ntshiab titanium (xws li TA1 thiab TA2) thiab + titanium alloys (xws li TC4 thiab TA17). Cov qhab nia sib txawv sib haum rau cov ntawv thov sib txawv, thiab cov hlau hlau muaj pes tsawg leeg yuav tsum muaj ntau yam nrog rau cov khoom siv hauv paus:

Kev lag luam ntshiab titanium vuam hlau:Haum rau corrosion -}} Cov ntawv thov tshuaj lom xws li tso tsheb tso tshuaj chease xws li tso tsheb hlau hluav taws xob thiab sab nrauv platform. Rau TA1 cov khoom siv, xaiv Vuam hlau nrog ib qho kev sib luag ntawm tus nqi weld tsawg dua 0.003 mm / xyoo hauv 3.5% nacl daws. Yog tias impurities nyob rau hauv lub vuam hlau ntau tshaj qhov txwv tsis pub tshaj plaws (piv txwv li, kev sib tw wardness yuav nce ntxiv los ntawm 20%, ua rau muaj kev pheej hmoo loj ntawm brittle bacitture.

+ titanium alloy vuam hlau:Zoo rau siab - kub thiab high- lub zog yuav tsum muaj. Noj TC4 cov hlau ua piv txwv, cov ntsiab lus vuam ntawm 6% thiab 7.5%, thiab 4.5%. Yog hais tias cov ntsiab lus txhuas yog tsawg dhau (piv txwv li, 5%), lub zog tensile ntawm weld ntawm 600 MPA, uas yuav tsis ua raws li qhov xav tau ntawm cov dav hlau tshuab turnine disks.

Tshwj xeeb Alloy Vuam Hlau:Tsim rau ib puag ncig heev. Piv txwv li, TA17 titanium alloy vuam hlau, los ntawm kev nce cov molybdenum cov ntsiab lus nruj ntawm 25j%), ua rau nws tsim kev tso tsheb hlau?

Thoob Ntiaj Teb Cov Qauv Siv:

ASTM B348: Qhia rau cov kev cia siab uas tau tso cai hauv cov xaim xaim hluav taws xob ntawm titanium vuam hlau, xws li ib qho kev txwv ntawm 0.20% pa cov ntsiab lus rau cov lag luam titanium. ISO 14175 xav kom muaj kev tiv thaiv roj ntawm ntau dua lossis sib npaug nrog 99.999% thiab ib qho chaw lwg tsawg dua lossis sib npaug los tiv thaiv hydrogen thiab cov pa oxygen.

 

Cov txheej txheem sib xws

Kev xaiv ntawm titanium vuam hlau yuav tsum muaj kev sib txawv ntawm txoj kev vuam, workpiece thickness, thiab ib puag ncig cov mob:

Inch txuam:

Rau nyias -} balled ntu (thickness tsawg dua los yog sib npaug lossis sib npaug nrog 3mm): 0.8} Ua ke nrog pulsed laser vuam, ib lub vuam ceev ntawm 0.1mm / s ua tiav, thiab kev cuam tshuam kub-cuam tshuam cheeb tsam dav yog khaws cia tsis pub dhau 0.3mm.

Txog tuab {-}} cov cheeb tsam phab ntsa (taub ntau dua los yog sib npaug nrog 50 hli): 2.46 φ vuam hlau tau xaiv. Ua ke nrog cov roj ntsha hlau (MIG) VUAM, VUAM Efficiency yuav nce li 25L / Min kom tiv thaiv oxidation ntawm chav weld pas dej.

Xaiv daim ntawv:

Spooled xaim: haum rau robotic Tig vuam thiab nws muab cov hlau nrag tsheb kauj vab pub mis roj los tiv thaiv Tangling. Cov hlau ncaj ncaj: haum rau kev siv tes vuam lossis cov txheej txheem kev ua haujlwm ntawm cov txheej txheem, xws li cov kev kho hauv cheeb tsam ntawm cov dav hlau cav tuaj. Cov xaim xaim yog tuaj yeem hloov kho los ntawm khoov.

Kev tswj hwm ib puag ncig:

Kev tiv thaiv hauv zos: ib 300mm ntev rub hood nrog rau hauv-}}} weld rhawv xim (GB / T 14976 Txuj Ci).

Zuag qhia tag nrho cov purification: hauv nqus hluav taws xob vuam (EBW), impurities yog cais los ntawm 10 xoom} Dist

Txiav - tawm cov piv txwv ntawm kev siv thev naus laus zis:

Lub koom haum Flimhofer nyob hauv lub teb chaws Yelemees tau tsim kho "cov neeg ntse tau kho cov kev sib tw tawm ntawm lub sijhawm 5% rau 0.2%.

NASA siv "Dual {{0} Be} Beams Kev Ua Haujlwm Ntawm Ob Lub Hluav Taws Xob Ua Yeeb Yam Los Ua Ntej Vuam

 

Kev Tswj Xyuas Zoo

Qhov zoo tshaj ntawm titanium vuam hlau ncaj qha cuam tshuam kev ntseeg tau thiab lub neej pabcuam ntawm Weld thiab yuav tsum tau tswj nruj rau cov chaw hauv qab no:

Cov ntsiab lus los txawv:

Hydrogen cov ntsiab lus: tsawg dua lossis sib npaug nrog 0.0015%. Txwv tsis pub, ti₂ precipitated nyob rau hauv weld yuav ua rau 40% tsawg dua hauv kev cuam tshuam tawv.

Cov ntsiab lus pa: tsawg dua los yog sib luag rau kev lag luam {{1} (}

Cov ntsiab lus carbon: tsawg dua los yog sib npaug rau 0.08%. Txwv tsis pub, kev tsim ntawm lub network ntawm Tic hauv Weld yuav tau txiav cov roj hmab kom nruj thiab ua rau muaj kev tawg ua kom tawg.

Zoo Tshaj:

Lub hlau dos yuav tsum yog qhov tsis xws luag xws li cov kab nrib pleb, quav, thiab oxide nplai, nrog lub rahness ra tsawg dua los yog sib npaug rau 0.8μm. Electrolytic polishing tuaj yeem txo qhov chaw mos rau 0.4μm, txo lub weld porosity los ntawm 1.2% rau 0.3%.

Qhov tseeb:

Cov khoom siv neeg kho tshuab: Weld tensile lub zog yuav tsum muaj ntau dua lossis sib npaug ntawm cov niam txiv khoom siv, raws li tau lees paub los ntawm kev tsim nyog los ntawm kev tsim nyog los ntawm kev tsim nyog los ntawm kev tsim nyog los ntawm kev tsim nyog los ntawm kev tsim muaj vuam

Corrosion Kuj: Tom qab cov ntsiab lus nyob rau hauv 5000 teev rau 1000 teev, ntawm Weld Corrosion tus nqi yuav tsum tsawg dua lossis sib npaug ntawm 0.005 mm / xyoo.

Microstructure: Misallographic Kev Tshuaj Ntsuam Xyuas tias Weld Grain Loj yog tsawg dua lossis sib npaug rau Attm Qib 5 kom tsis txhob muaj embrittlement tshwm sim los ntawm coarse nplej.

Cov Ntawv Pov Thawj Thoob Ntiaj Teb:

EU ped daim ntawv pov thawj yuav tsum tankium vuam hlau cov ntaub ntawv khaws cia, suav nrog melting batches, xws li cov ntaub ntawv ntsuas tshuaj lom neeg, thiab cov ntaub ntawv cov khoom ntiag tsev.

Teb chaws Asmeskas Asme yuav tsum tau txais Welds kom dhau qhov kev cuam tshuam nrog ntau dua lossis sib npaug rau 20 j kom muaj kev nyab xeeb nyob hauv ib puag ncig zoo.

 

Xaiv Titanium Vuam hlau tsis yog qhov teeb meem yooj yim ntawm "txuam"; Nws yuav tsum muaj kev ua kom zoo raws li cov khoom siv hauv paus, vuam cov txheej txheem, thiab ib puag ncig ua haujlwm. Los ntawm corrosion - tiv taus welds hauv cov khoom siv hluav taws xob rau hauv cov khoom siv tshuaj tiv thaiv kev kho mob