Cas txoj kev kho deg yog muaj rau titanium thiab titanium alloys
Titanium thiab titanium alloys, vim lawv lub zog siab, thiab kev cuam tshuam corospace, tau dhau los ua cov kws kho mob engineering, thiab lwm thaj teb. Txawm li cas los xij, kev txwv hauv lawv cov khoom sib xws - xws li coj tsis txaus, cov kev xav tau txhim kho lawv cov kev nthuav dav rau lwm cov ntawv thov. Nto kho thev naus laus zis cia kom meej tswj tau kev tswj hwm lub cev thiab tshuaj ntawm cov khoom saum npoo av, ua kom muaj kev ua haujlwm ncaj ncees.
Mechanical hajyam ntxiv: Rov kho cov khoom nyob saum npoo av thiab cov neeg kho tshuab
Kev kho kho tshuab, uas lub cev ntawm lub cev ntawm lub npoo microsamental rau kev txhim kho cov hnav tsis kam ntawm titanium alloys thiab txhim kho txheej nplaum.
Sandblasting thiab Polishing:Siv cov pa hluav taws xob siab nqa cov abrasive xws li txhuas oxide thiab muab ib tus nqi sib tw los ntawm kev cuam tshuam thiab txhim kho cov tshuab ua haujlwm txuas ntxiv. Rau qhov ntsuas qhov chaw, ntub dej sandblasting (nrog txias) tuaj yeem tiv thaiv kev kub dhau thiab oxidation. Daim ntaub log polishing ua ke nrog cerium oxide abrasitive muab tshuaj txhuam tuaj yeem txo qhov chaw mos kom ntau dua lossis sib npaug rau 0.2μm, ntsib daim iav ua tiav cov kev cog hniav kom tiav.
Tua peening:High-velocity txhaj kev cuam tshuam rau qhov chaw nyob, nthuav qhia cov txheej txheem kev ntxhov siab ntawm compressant (nce mus txog 0.5 hli tob), txhim kho kev qaug zog tsis kam. Kev tshawb fawb tau pom tias kev tua cov panening tuaj yeem ua rau lub neej qaug zog ntawm TC4 titanium alloy xws li cov dav hlau muaj zog.
Tshuaj Kho Mob Tshuaj: Tsim cov txheej txheem ua haujlwm
Tshuaj lom neeg tshuaj lom neeg, los ntawm cov tshuaj tiv thaiv ntawm cov nplaim thiab cov reagent, ua cov duab tiv thaiv oxide lossis cov thev naus laus zis rau kev txhim kho corrosion tsis kam thiab biocompatibility.
Pickling thiab Passivation:Ib qho kev sib xyaw HF-hno₃ acid piv txwv ib txhij cuam tshuam oxide txheej (tiide) thiab nws yog xim hlau tsis zoo, sib sau ua ib qho ntom duab ua yeeb yaj kiab rau saum npoo. Tswj lub sijhawm xaiv tsa (1-5 feeb) thiab qhov kub thiab txias rau 50 degree) tuaj yeem zam kev pheej hmoo ntawm hydrogen clrittlement tshwm sim los ntawm ntau corrosion.
Alkali Kub Kho:Titanium alloy yog raus rau hauv lub siab-conclation naoh daws (5-10m) los tsim cov npoo av, uas yog ces hloov mus rau hauv cov tshuaj tiv thaiv hydrotic. Cov txheej no tuaj yeem ua rau lub cev pob txha cell adhesion, nce lub zog ntawm kev cog hniav ntawm kev cog hniav thiab pob txha pob txha los ntawm ntau dua 2 zaug.
Tshuaj Hloov Hloov Txhim Kho Dua:Los ntawm cov txheej txheem xws li phosphating thiab chromating, hloov dua siab tshiab nrog txoj kev tuab 0.1-5μm yog tsim nyob rau saum npoo. Qhov txheej txheem no ua cov txheej txheej kom txo cov khoom nplaum thaum lub sijhawm kos duab thiab tiv thaiv kev tiv thaiv chlosion, txuas ntxiv cov kev pabcuam lub neej ntawm cov khoom siv marine.
Electrochemical Control: Customizing tus qauv thiab kev ua haujlwm ntawm Oxide Zaj Duab Xis
Electrochemical kev kho mob kho kom haum cov tuab, morphology, thiab muaj pes tsawg daim duab ua kom zoo, ua tiav kev ua kom zoo dua ntawm kev kho corrosion, ua tiav kev ua kom zoo, thiab kev ua kom zoo nkauj.
Anodic oxidation:Hauv cov sulfuric acid, oxalic acid, lossis phosphoric acid electrolyte, titanium ua raws li anode thiab yog tam sim no yog thov rau ib qho ntxiag tio₂ zaj duab xis nyob rau saum npoo. Los ntawm kev kho qhov voltage (10-120V) thiab sijhawm, cov yeeb yaj kiab thickness (0.01-0.15μm) thiab pore, 15v rau tsaus kub, 30v rau ci xiav). Qhov thev naus laus zis no tau siv nyob rau hauv titanium alloy hniav nyiaj hniav kub, architecture kho kom zoo nkauj, thiab lwm thaj teb.
Micro-arc oxidation (Mao):This technology overcomes the voltage limitations of traditional anodizing (>200V) by utilizing the transient high temperatures (>3000 degree) ntawm micro-arc paug mus rau hauv-situ cog cov yeeb yaj kiab ceramic (5-200μm tuab) nyob rau saum npoo. Los ntawm kev ntxiv cov tshuaj ntxiv xws li potassium permanganate, sib xyaw ua cov khoom siv xeb thiab cov tshuaj tua kab mob ua kom tau txais cov ntawv thov tshwj xeeb xws li tus kho mob.
Electroplating thiab electroless plating:Tso cov yeeb yaj kiab hlau xws li npib tsib, tooj liab, thiab chromium ntawm titanium nto muaj peev xwm txhim kho kev hnav tsis kam thiab kev coj ua. Piv txwv li, nano-ntshiab nickel plating tuaj yeem nce lub hardness ntawm tc4 titanium alloy los ntawm 300Hv, thaum nce kev hnav tsis kam txog tsib zaug. Txhawm rau hais txog kev cuam tshuam ntawm oxide zaj duab xis nyob rau hauv titanium nto nrog electroplating, hydroflofic acid pretreatment lossis hluav taws xob ua kom muaj zog.
Lub cev tso nyiaj: tsim cov roj ultra-nyuaj tiv thaiv
Lub cev vapor deposition (PVD) thiab tshuaj vapor depositition (CVD) thev naus laus zis, thiab pob zeb diamond ultra, txhim kho kev hnav khaub ncaws ultra, txhim kho kev hnav thiab corrosion tsis kam.
Pvd:Siv cov hlauetron sputtering lossis arc ion plating, tin, ticn, lossis CRN txheej ntawm ib tuab ntawm 1-5μm tau muab tso rau ntawm cov chaw titanium. Tin Txheej ci yog golden nyob rau hauv cov xim thiab muaj lub hardness ntawm 2000-2500 HV, ua rau lawv dav siv nyob rau hauv titanium alloy cov cuab yeej thiab pwm. DLC txheej txheej muaj cov coefficient ntawm kev txhuam ntawm 0.05-0.1, txo cov adhesion ntawm cov twj paj nruag phais thiab cov ntaub so ntswg.
CVD: Decomposing gaseous precursors (such as CH₄ and TiCl₄) at high temperatures, diamond or titanium carbide coatings are formed on titanium surfaces. This technology offers high deposition rates (up to 10μm/h), but requires strict temperature control (>800 DEGREE) kom tsis txhob tawm tsam ntawm cov thaj chaw substrate.
Lub zog teeb hloov kho: rhuav cov kev txwv ntawm cov txheej txheem tsoos
Laser thiab Electron nqaj technologies, los ntawm kev siv hluav taws xob kub ceev, pab txhawb kev tswj cov khoom saum npoo thiab kev ua haujlwm zoo.
Laser Degure Kho:Qhov no muaj laser cladding, laser alloying, thiab laser quenching. Piv txwv li, cladding ib tug kab mob Cocrw-WC sib xyaw cov hmoov ntawm lub titosium nto muaj peev xwm tsim kom muaj kev sib xyaw nrog 1200 hV, txhim kho kev coj tawm tsam yim lub sij hawm ntawm substrate. Laser quenching, ntawm qhov tod tes, tsim cov khoom sib xyaw zoo nkauj ntawm cov npoo av (10⁵-10-txias.
Hauv Electron Nqaum Nto Kho: Using a high-energy electron beam to bombard the surface, melting and rapid solidification (cooling rates >10⁶℃/ s) tau tiav, tsim cov amorphous lossis nanocrystalline qauv. Cov thev naus laus zis no tuaj yeem txhim kho kev ua haujlwm corrosion tsis kam thiab nkees ua yeeb yam ntawm titanium alloys, ua rau muaj kev tsim nyog rau kev siv nyob rau hauv ib puag ncig nuclear siab cov hlab.
Nrog kev nce qib ntawm cov hom phiaj ntse thiab cov hom phiaj carbon neutrals, Titanium Alloy Stor Kev Kho Mob "thiab" kev tsim khoom lag luam. " Ntawm ib sab tes, Ai cov algoriths tuaj yeem twv xyuas cov kev ua tau zoo ntawm cov txheej txheem ntawm cov txheej txheem, cov txheej txheem kev coj ua tau zoo. Ntawm qhov tod tes, ntsuab thev naus laus zis xws li qhuav sandblasting, tsawg-kub kev kho kom zoo nkauj yuav ua rau muaj kev siv hluav taws xob thiab cov khib nyiab pov tseg. Nws yog qhov xav txog tias kev kho mob thev naus laus zis yuav dhau los ua cov khoom siv titanium rau kev tshawb nrhiav qhov sib sib zog nqus ntawm cov khoom sib sib zog nqus, cov khoom sib sib zog nqus dej hiav txwv, thiab lwm thaj teb.
