titanium pas nrig puas yuav tawg?
Titanium rods, raws li cov khoom tseem ceeb hauv aerospace, cov cuab yeej kho mob, thiab siab -kev tsim khoom kawg, yeej ib txwm yog qhov tseem ceeb ntawm kev lag luam saib xyuas vim lawv cov teeb meem tawg. Los ntawm cov qauv kev txhawb nqa ntawm cov kua dej hydrogen cia tank hauv Long March 5 foob pob ua ntxaij mus rau qhov tsaws iav struts ntawm Boeing 787, titanium rods tau dhau los ua qhov kev xaiv zoo tshaj plaws rau cov khoom tseem ceeb vim lawv qhov tsis tshua muaj siab -kub toughness, muaj zog tshwj xeeb, thiab qaug zog tsis kam. Txawm li cas los xij, kev pheej hmoo tawg tseem muaj nyob hauv kev siv tiag tiag. Qhov kev pheej hmoo no tsis yog qhov tsis zoo ntawm cov khoom siv nws tus kheej, tab sis qhov tshwm sim ntawm kev sib xyaw ua ke ntawm cov khoom siv, kev siv tshuab, thiab kev siv ib puag ncig. Yog li ntawd, yuav tsum muaj kev tshuaj xyuas ntau yam ntawm nws txoj kev puas tsuaj thiab cov tswv yim tiv thaiv.
Kev pheej hmoo ntawm pob txha ntawm titanium rods feem ntau yog los ntawm nws cov khoom tshwj xeeb physicochemical. Ntshiab titanium muaj Mohs hardness ntawm tsuas yog 4. Txawm hais tias nws muaj ductility zoo heev, nws lub zog shrinkage yog tsawg, yuav tsum tau ntxiv cov alloying ntsiab xws li txhuas thiab vanadium los txhim kho nws lub zog. Txawm li cas los xij, kev tswj hwm cov ntsiab lus tsis huv yog qhov tseem ceeb heev- tshawb fawb los ntawm Xi'an Jiaotong University pom tias thaum cov pa oxygen hauv kev lag luam ntshiab titanium raug txo los ntawm 0.14 wt% mus rau 0.02 wt%, qhov tawg toughness tuaj yeem nce los ntawm 117 MPa·m¹ / ² rau 255 MPa·m fra·m fractions ntawm qhov tseem ceeb ntawm fractions¹ / sq. tawv. Tsis tas li ntawd, titanium muaj cov thermal conductivity tsis zoo, tsuas yog ib qho -quarter ntawm stainless hlau, ua rau nws nyuaj rau dissipate tshav kub thaum ua. Qhov no yooj yim ua rau kev tsim ntawm thaj chaw siab - qhov kub thiab txias, ua rau cov ntaub ntawv softening thiab tawg tawg. Piv txwv li, hauv kev sim compression dynamic, Ti-47Al-2Cr-2Nb titanium alloy nthuav tawm adiabatic shear bands ntawm qhov kub siab tshaj 473K, dhau los ua qhov tseem ceeb rau kev puas tsuaj.
Kev tsis xws luag hauv kev siv thev naus laus zis yog lwm qhov tseem ceeb ua rau titanium bar tawg. Thaum lub sij hawm dov, tsis txaus forging deformation thaum lub sij hawm thawj forging txheej txheem tiv thaiv tsis txaus grain refinement, uas ua rau txo cov khoom muaj zog thiab toughness. Ib lub tuam txhab dov titanium tuav tsis muaj qhov tsis xws luag thaum kuaj pom qhov tsis zoo, tab sis microcracks tshwm sim tom qab siv. Kev tshuaj xyuas tau qhia tias qhov kev ntxhov siab tsis txaus thiab kev kos duab coj mus rau cov nplej ntxhib, thiab cov txheej txheem dov ua rau cov khoom siv anisotropy, nthuav dav qhov kev ua tau zoo sib txawv hauv cov lus qhia sib txawv thiab thaum kawg ua rau tawg. Tsis tas li ntawd, kev tswj qhov kub tsis raug thaum lub sij hawm forging tuaj yeem ua rau muaj qhov tshwm sim loj. Piv txwv li, qhov siab -qhov ntsuas kub ntawm titanium alloy kuaj cov qauv tau ntsib kev tawg loj heev thaum lub sij hawm forging vim cua sov ceev heev, ua rau kub gradients ntawm qhov kawg thiab nruab nrab, thiab nruab nrab ntawm qhov chaw thiab cov tub ntxhais ntawm cov billet. Cov txheej txheem kho cua sov yog qhov tseem ceeb sib npaug; Kev kho cua sov tsis tsim nyog thiab lub sijhawm tuaj yeem ua rau muaj qhov txawv txav ntawm microstructural thiab txo cov khoom tiv thaiv kom tawg tawm.
Qhov nyuaj ntawm kev ua haujlwm ib puag ncig ntxiv ua kom muaj kev pheej hmoo tawg ntawm titanium rods. Hauv thaj chaw aerospace, titanium rods yuav tsum tiv taus qhov kub thiab txias alternation thiab siab - kev nyuaj siab. Txawm hais tias qhov tsaws iav struts ntawm Boeing 787 tau dhau 1 lab lub voj voog qaug zog, cov kab mob me me tseem tuaj yeem maj mam nthuav tawm mus rau hauv cov kab nrib pleb hauv lub sijhawm ntev - kev pabcuam. Hauv kev kho mob, titanium rods tau dav siv los ua orthopedic implants vim lawv cov biocompatibility zoo heev, tab sis kwv yees li 0.5% -1% ntawm cov neeg mob yuav muaj kev cog qoob loo los yog pob txha, uas yog ze rau cov neeg mob sib txawv, cov txheej txheem phais, thiab tom qab kev phais. Tsis tas li ntawd, thaum titanium rods pom muaj zog corrosion kuj nyob rau hauv cov khoom siv tshuaj, kev sib cuag ntev nrog cov concentrations ntawm hydrochloric acid los yog sulfuric acid tseem tuaj yeem ua rau tshuaj corrosion, uas ua rau txo qis hauv zos zog.
Txo qhov kev pheej hmoo ntawm titanium pas nrig tawg yuav tsum muaj kev sib koom tes ntawm peb yam: cov khoom tsim, kev ua kom zoo dua qub, thiab kev siv thiab tu. Nyob rau hauv cov nqe lus ntawm cov khoom tsim, txo cov ntsiab lus ntawm interstitial impurities xws li oxygen thiab nitrogen tuaj yeem txhim kho pob txha toughness; tsim tshiab tshiab qis-interstitial- suav nrog (ELI) titanium alloys, xws li Qib 23 titanium, tuaj yeem txo qhov ntev -lub sij hawm qaug zog tawg ntawm kev cog qoob loo. Hais txog kev txhim kho cov txheej txheem, nws yog ib qho tsim nyog yuav tsum nruj me ntsis tswj forging deformation, cua sov kub, thiab kev kho cua sov tsis zoo, xws li kev ua haujlwm ntau - dhau kub dov thiab cov txheej txheem cua sov los xyuas kom meej microstructure uniformity. Hauv kev siv thiab kev saib xyuas, qhov chaw saum npoo ntawm titanium rods yuav tsum tau tshuaj xyuas tsis tu ncua kom tsis txhob muaj ntau dhau, thiab kev ua haujlwm tom qab- yuav tsum tau ntxiv dag zog rau hauv thaj chaw kho mob cog kom cuam tshuam cov kev pheej hmoo sai sai.
Kev pheej hmoo tawg ntawm titanium rods tsis tuaj yeem tswj tau; Nws cov ntsiab lus nyob hauv qhov sib npaug ntawm cov khoom siv, cov txheej txheem precision, thiab kev siv cov xwm txheej. Los ntawm cov kua dej hydrogen cia tso tsheb hlau luam ntawm Long March 5 foob pob hluav taws mus rau qhov tseeb implantation ntawm cov pob qij txha, kev ntseeg siab ntawm titanium rods yeej ib txwm ua raws li kev nkag siab txog kev tshawb fawb thiab thev naus laus zis tshiab. Nyob rau hauv lub neej yav tom ntej, nrog kev ua tiav hauv cov thev naus laus zis tshiab xws li qis- cov pa oxygen titanium alloys thiab cov khoom siv ntxiv, qhov tawg ntawm cov titanium rods yuav raug txhim kho ntxiv, thiab lawv daim ntawv thov ciam teb nyob rau hauv qhov chaw huab cua thiab cov xwm txheej ceev yuav txuas ntxiv mus. Raws li lub tuam txhab ua lag luam hauv cov khoom siv titanium, HHAIBOWEIER METAL ua raws li lub tswv yim tseem ceeb ntawm "Quality Builds Trust." Kev cia siab rau nws tus kheej tsim qis- qhov sib txawv ntawm titanium alloy mis thiab cov txheej txheem ntse forging, nws tau ua kom cov pob txha tawv tawv ntawm titanium tuav rau kev lag luam kev lag luam. Nws cov titanium tuav tau dhau 100,000 qhov kev sim qaug zog, nrog cov ntsiab lus impurity tswj nruj me ntsis hauv qab 0.01wt%, ua kom ruaj khov ua haujlwm nyob rau hauv ntau qhov kub ntawm -253℃txog 600℃. Lawv tau siv dav hauv aerospace, sib sib zog nqus-siv hiav txwv, thiab cov chaw kho mob siab. Xaiv HHAIBOWEIER METALl titanium tuav tsis yog tsuas yog xaiv cov ntaub ntawv pov thawj xwb, tab sis kuj yog hais txog kev txhaj tshuaj ntev thiab txhim khu kev qha rau hauv cov haujlwm tseem ceeb.
