Qhov tseem ceeb tsis tau xav txog thaum yuav titanium daim hlau
Hauv kev tsim khoom lag luam thiab siab -kawg daim ntawv thov, titanium daim hlau, nrog lawv lub teeb yuag, siab zog, corrosion kuj, thiab biocompatibility, tau dhau los ua cov khoom tseem ceeb hauv kev lag luam xws li aerospace, cov cuab yeej kho mob, thiab lub zog tshiab. Txawm li cas los xij, titanium phaj kev yuav khoom suav nrog cov txheej txheem tsis yooj yim, thiab tsis muaj kev paub txog kev ua haujlwm, nws yooj yim rau poob rau hauv lub ntxiab ntawm "tus nqi siab, tsis zoo" lossis "kev ua haujlwm tsis zoo." Tsab ntawv xov xwm no pib nrog cov ntsiab lus tseem ceeb ntawm titanium daim hlau thiab sib txuas nrog cov txheej txheem kev siv tswv yim los txheeb xyuas cov ntsiab lus tseem ceeb rau kev txiav txim siab yuav khoom, pab cov tuam txhab kom haum lawv cov kev xav tau thiab ua tiav qhov sib npaug ntawm tus nqi thiab kev ua haujlwm.
Cov khoom siv ntawm titanium phaj yog qhov tseem ceeb rau kev txiav txim siab yuav khoom. Ntshiab titanium daim hlau, sawv cev los ntawm TA1 thiab TA2, muaj qhov purity ntawm ntau dua 99.9%, muaj kev tiv thaiv corrosion thiab kev ua haujlwm zoo, ua rau lawv tsim nyog rau kev siv xws li cov chaw cia khoom thiab cov khoom siv seawater desalination. Piv txwv li, TA2 titanium daim hlau muaj qhov corrosion txhua xyoo tsawg dua 0.005mm hauv 3.5% sodium chloride tov, deb tshaj li 316L stainless hlau, ua rau nws nyiam xaiv rau marine engineering. Titanium alloy daim hlau, xws li TC4 (Ti-6Al{19}}4V) thiab Ti-13Nb-13Zr, txhim kho lub zog thiab kub ua hauj los ntawm kev ntxiv cov khoom xws li txhuas, vanadium, thiab niobium. TC4 titanium daim hlau muaj lub zog tensile tshaj 895 MPa, peb zaug ntawm cov ntshiab titanium, thiab yog dav siv nyob rau hauv high-lub zog daim ntaub ntawv xws li aero-engine hniav thiab orthopedic implants. Thaum muas titanium daim hlau rau electrolytic cell diaphragms, alkali-resistant Gr2 khoom yuav tsum tau xaiv; rau hydrogen roj cell bipolar daim hlau, Ti-0.2Pd alloy yuav tsum tau ua ntej kom txo tau kev sib cuag.
Dimensional raug thiab nto zoo ncaj qha cuam tshuam rau kev ua hauj lwm efficiency thiab tawm los ntawm titanium daim hlau. Hais txog cov tuab, 0.5-2.0 hli titanium daim hlau yog tsim rau cov ntaub ntawv sib xws xws li chav ua noj txiav thiab cov khoom siv hluav taws xob, thaum cov phaj tuab dua 10 hli yog siv rau kev thauj khoom-cov kabmob xws li cov hlab ntsha siab thiab cov qauv nkoj. Piv txwv li, lub tuam txhab hluav taws xob tshiab tau yuav Ti-3Al-2.5V alloy daim hlau nrog lub thickness kam rau ua nyob rau hauv ± 0.02 hli los xyuas kom meej qhov tseeb ntawm kev sib dhos ntawm photovoltaic brackets. Kev kho saum npoo yog qhov tseem ceeb sib npaug. Micro-arc oxidation thev naus laus zis tuaj yeem tsim 50-100μm ceramic txheej ntawm titanium phaj nto, txhim kho corrosion kuj los ntawm 5 zaug. Sandblasting tsub kom nto roughness, txhim kho osseointegration efficiency, thiab yog haum rau kho hniav implant abutments. Thaum lub sij hawm kev yuav khoom, qhov kev tso cai ntawm qhov tsis xws luag yuav tsum tau txhais kom meej. Macroscopic defects xws li cov kab nrib pleb, tev, thiab oxide nplai yuav tsum raug tshem tawm, thaum qhov tob ntawm cov khawb hauv zos yuav tsum tsis pub tshaj ib nrab ntawm cov thickness kam rau ua.
Cov khoom siv tshuab thiab cov txheej txheem sib raug zoo yog qhov tseem ceeb lav rau lub sijhawm ntev - lub sijhawm ua haujlwm ruaj khov ntawm titanium daim hlau. Cov tsis xws li tensile lub zog, yield zog, thiab elongation yuav tsum tau muab kev soj ntsuam zoo nyob rau hauv nrog rau daim ntawv thov scenario. Piv txwv li, Gr4 titanium daim hlau siv nyob rau hauv ntug dej hiav txwv cua txias tshuab xav tau lub zog tensile Ntau dua los yog sib npaug rau 500MPa los tiv thaiv yoj cuam tshuam, thaum lub elongation Ntau dua los yog sib npaug li 15% kom tsis txhob tawg tawg. Lub xeev kev kho cua sov muaj qhov cuam tshuam loj rau kev ua haujlwm. Annealed TC4 titanium daim hlau tuaj yeem ua tiav qhov elongation txog li 20%, thaum kev kho kev laus tuaj yeem ua kom lub zog mus rau 1100MPa, tab sis cov yas yuav txo qis raws li. Thaum muab titanium daim hlau, nws yog ib qho tseem ceeb kom paub meej tias tus neeg muag khoom cov txheej txheem kev kho cua sov tsis zoo thiab txheeb xyuas qhov ua tau zoo los ntawm kev ntsuas tensile, kuaj hardness, thiab lwm yam. Tsis tas li ntawd, qhov weldability ntawm titanium daim hlau kuj tseem ceeb heev. Laser vuam tshuab tuaj yeem ua tiav qhov vuam lub zog coefficient Ntau dua lossis sib npaug ntawm 0.95, zoo dua rau cov txheej txheem riveting ib txwm, zam kev pheej hmoo ntawm electrolyte to.
Cov ntawv pov thawj tus qauv thiab cov saw hlau kev ntseeg tau tsim ib txoj kab kev tiv thaiv rau titanium phaj zoo tswj. Cov qauv thoob ntiaj teb xws li ASTM B265 thiab ISO 5832-2 kom meej meej txhais cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov txheej txheem kuaj rau titanium daim hlau, thaum tus qauv hauv tsev GB / T 3621 txwv nruj rau cov ntsiab lus tsis huv (xws li Fe Tsawg dua lossis sib npaug li 0.30%, O Tsawg dua 0.2%) Kev kho mob- qib titanium daim hlau yuav tsum xeem dhau ISO 10993 biocompatibility test kom tsis muaj cytotoxicity; titanium daim hlau rau kev lag luam nuclear yuav tsum tswj cov ntsiab lus ntawm kev ua kom muaj zog xws li Co thiab Cr kom tsawg dua lossis sib npaug li 1ppm kom txo cov hluav taws xob txaus ntshai. Hais txog cov saw hlau, qhov tseem ceeb yuav tsum tau muab rau cov neeg xa khoom nrog lub tshuab nqus tsev tus kheej- siv lub tshuab hluav taws xob arc (VAR) peb-theem melting peev xwm, uas tuaj yeem txo qhov sib cais thiab txhim kho cov khoom sib xws. Piv txwv li, titanium phaj chaw tsim tshuaj paus, los ntawm kev nruam melting technology siv electromagnetic txias crucibles, tswj lub Nb segregation ntawm loj - loj ingots mus rau hauv ± 0.5%, ua tau raws li qhov yuav tsum tau nruj me ntsis ntawm aero-engine hniav.
Titanium phaj kev yuav khoom yuav tsum yog raws li cov khoom siv, kev txhawb nqa los ntawm qhov tseeb qhov tseeb thiab qhov zoo ntawm qhov chaw, nyob rau ntawm cov khoom siv kho tshuab thiab cov txheej txheem sib raug zoo, thiab tau lees paub los ntawm cov ntawv pov thawj tus qauv thiab cov saw hlau kev ntseeg tau. Shaanxi Haibowei Hlau Khoom Technology Co., Ltd. tsom rau titanium phaj R&D thiab ntau lawm, muab ib qho - nres kev daws teeb meem rau koj siab - kawg daim ntawv thov los ntawm kev tswj kom zoo thiab cov kev pabcuam customized.
