Titanium alloy tau raug suav hais tias yog cov khoom tseem ceeb hauv siab -kawg teb suav nrog aerospace, kev kho mob, thiab tshuaj engineering rau nws lub zog zoo tshaj rau qhov hnyav piv, corrosion resistance, thiab biocompatibility. Ntawm ntau qib ntawm titanium alloy, Qib 2 (industrially ntshiab titanium) thiab Qib 5 (Ti-6Al-4V) yog ob qib nrov tshaj plaws, lawv muaj qhov sib txawv hauv kev tsim qauv, kev ua haujlwm zoo thiab kev siv daim ntawv thov. Kab lus no yuav txheeb xyuas qhov sib txawv ntawm 8 qhov loj me, muab cov ntaub ntawv xaiv cov ntaub ntawv raug rau cov neeg yuav khoom thiab cov kws ua haujlwm txawv teb chaws.
Cov tshuaj muaj pes tsawg leeg yog qhov sib txawv ntawm ob, ncaj qha txiav txim siab cov khoom siv microstructure thiab kev ua tau zoo. Qib 2 belongs rau kev lag luam ntshiab titanium (CP Titanium), nrog rau titanium ua cov tshuaj tseem ceeb thiab cov purity ntau dua 99.2%. Nws tsuas muaj cov kab tsis huv, nrog cov ntsiab lus oxygen tsawg dua lossis sib npaug li 0.25% thiab cov ntsiab lus hlau tsawg dua lossis sib npaug li 0.30%. Tsis muaj kev txhob txwm ntxiv cov ntsiab lus alloying, thiab nws nthuav tawm ib qho alpha theem qauv ntawm chav tsev kub. Qib 5 yog ib txwm + dual theem titanium alloy, raug xaiv raws li Ti-6Al-4V, nrog cov qauv tsim thiab tswj tau. Dhau li ntawm 90% ntawm titanium matrix, 5.5% mus rau 6.75% aluminium thiab 3.5% mus rau 4.5% vanadium tshwj xeeb ntxiv. Aluminium yog lub - theem stabilizer thiab nws muaj peev xwm nce lub tshav kub tsis kam, thaum vanadium yog - theem stabilizer, uas ua rau kom lub hardenability. Kev sib xyaw ua ke ntawm ob lub ntsiab lus alloying ua rau kev tsim ntawm + ob theem microstructure uas yog lub hauv paus rau nws cov cuab yeej muaj zog. Tsis tas li ntawd, Qib 5 muaj kev tswj hwm nruj dua li impurities, nrog rau cov ntsiab lus oxygen tsawg dua lossis sib npaug li 0.20%, kom tsis txhob cuam tshuam qhov sib npaug ntawm alloy lub zog thiab toughness.
Qhov sib txawv ntawm cov khoom siv kho tshuab yog qhov cuam tshuam ncaj qha ntawm cov qauv tsim thiab tseem yog lub hauv paus tseem ceeb rau kev xaiv. Cov khoom siv kho tshuab ntawm Qib 2 nthuav tawm cov yam ntxwv ntawm "lub zog nruab nrab thiab siab plasticity". Lub zog tensile nyob rau hauv lub xeev annealed tsuas yog 345-480MPa, lub zog tawm los yog 275-380MPa, tab sis elongation tuaj yeem ncav cuag 20% -28%, thiab pob txha toughness siab tshaj 60MPa √ m. Nws muaj zoo heev formability thiab tej yam kuj. Hauv qhov sib piv, Qib 5 tau ua tiav qhov kev ua tau zoo ntawm kev ua tau zoo, nrog lub zog tensile ntawm 895-930MPa thiab lub zog tawm los ntawm 825-869MPa. Tom qab cov txheej txheem kev laus kho, lub zog tensile tuaj yeem nce ntxiv mus rau 1100-1200MPa, uas yog 2-3 npaug ntawm Qib 2. Txawm li cas los xij, nrog kev nce hauv lub zog nrog kev txo qis hauv plasticity, nws qhov elongation tsuas yog 10% -15%, thiab nws cov pob txha toughness qis dua me ntsis (55-70MP), qhov ua tau zoo ntawm cov yam ntxwv siab plasticity". Tsis tas li ntawd, qhov elastic modulus ntawm Qib 5 (114GPa) yog siab dua li ntawm Qib 2 (103GPa), qhia txog cov khoom siv zoo dua qub, thaum qhov ntom ntom me ntsis (4.43g / cm ³ vs 4.51g / cm ³), qhia qhov txiaj ntsig tseem ceeb hauv lub zog rau qhov hnyav piv.
|
Qeb |
Titanium Qib 2 (CP-Ti) |
Titanium Qib 5 (Ti-6Al-4V) |
|
Hom khoom |
Kev lag luam Pure Titanium |
Alpha-Beta Titanium Alloy |
|
Qhov ntom |
4.51 g / cm³ |
4.43 g / cm³ |
|
Tensile zog (Rm) |
345-485 MPa |
895-990 MPa |
|
Yield zog (Rp0.2) |
275-410 MPa |
828-880 MPa |
|
Elongation |
20–30% |
10–14% |
|
Hardness |
~ 160 HV |
~ 349 HV |
|
Elastic Modulus |
103 GPa |
113.8 TSI |
|
Corrosion Resistance |
Zoo heev |
Zoo heev |
|
Weldability |
Zoo heev |
Nruab nrab |
|
Machineability |
Zoo |
Nruab nrab mus nyuaj |
|
Qhov Zoo Tshaj Plaws |
High corrosion kuj, yooj yim sib sau |
Ultra-siab zog/qhov hnyav piv |
|
Kev siv yam |
Cov cuab yeej siv tshuaj, cov khoom siv hauv hiav txwv, cov cuab yeej kho mob, muaj hlau & raj |
Aerospace fasteners, kho mob cog, siab -lub zog precision qhov chaw, hwm hlau |
|
Titanium Hlau - Mechanical Properties |
||
|
Txoj kab uas hla (mm) |
Qib 2 – Tensile Strength |
Qib 5 – Tensile Strength |
|
0.10–0.20 |
480-520 MPa |
1100-1250 MPa |
|
0.21–0.40 |
450-500 MPa |
1050-1200 MPa |
|
0.41–0.60 |
430-480 MPa |
980-1100 MPa |
|
0.61–1.00 |
420-470 MPa |
950-1050 MPa |
|
Titanium Qws / Bar - Mechanical Properties |
||
|
Txoj kab uas hla |
Qib 2 – Tensile Strength |
Qib 5 – Tensile Strength |
|
Ø 3-20 mm |
380-450 MPa |
900-980 MPa |
|
Ø 21-60 mm |
350-430 MPa |
880-950 MPa |
|
Ø 61-120 mm |
340-420 MPa |
860–930 MPa |
Kev ua haujlwm corrosion kuj qhia tau hais tias cov txiaj ntsig zoo vim qhov sib txawv ntawm cov khoom sib xyaw thiab lub koom haum. Qib 2, raws li cov titanium ntshiab, yuav luag zoo tag nrho corrosion kuj thiab tuaj yeem ua haujlwm ruaj khov hauv cov kua qaub xws li dej hiav txwv, cov tshuaj chloride, nitric acid, acetic acid, thiab alkaline ib puag ncig. Qhov ntom ntom oxide zaj duab xis tsim rau saum npoo tuaj yeem thaiv kev nkag mus ntawm cov xov xwm corrosive, tshwj xeeb tshaj yog tsim rau muaj zog corrosion. Qib 5 kuj muaj kev tiv thaiv corrosion zoo heev, deb tshaj li cov khoom siv xws li stainless hlau. Txawm li cas los xij, vim muaj kev cuam tshuam ntawm cov ntsiab lus alloying, nws cov kev tiv thaiv corrosion yog me ntsis qis dua rau Qib 2 hauv qee qhov txo cov kua qaub (xws li hydrochloric acid) thiab siab concentration chloride ib puag ncig. Txawm li cas los xij, Qib 5 tau zoo dua siab dua - kub oxidation kev ua tau zoo thiab tuaj yeem ua kom ruaj khov corrosion kuj thiab txhua yam khoom nyob rau hauv qhov kub thiab txias ib puag ncig tsawg dua lossis sib npaug li 300 degree, thaum Qib 2 lub zog yuav txo qis tom qab ntau tshaj 300 degree, nrog rau qhov siab tshaj plaws ua haujlwm kub tsis tshaj 400 degree.
Qhov nyuaj thiab manufacturability ntawm kev ua cov txheej txheem txawv heev, ncaj qha cuam tshuam rau ntau lawm efficiency thiab cov nqi. Kev ua haujlwm nyuaj ntawm Qib 2 yog qhov tsawg. Nrog cov yas zoo heev, nws tuaj yeem ua tau yooj yim ua haujlwm txias xws li dov, stamping, thiab khoov. Nws muaj kev vuam zoo heev thiab tuaj yeem tau txais siab - vuam zoo siv cov txheej txheem vuam zoo. Lub deformation tom qab vuam yog me me thiab tsis xav tau kev kho cua sov kho. Nws cov kev ua haujlwm txiav kuj zoo dua, nrog cov cuab yeej siv tsawg dua thiab ua haujlwm zoo dua li Qib 5. Qhov kev ua haujlwm nyuaj ntawm Qib 5 tau nce ntau. Vim nws lub zog muaj zog thiab tsis tshua muaj thermal conductivity (tsuas yog li ib -ib peb ntawm Qib 2, 6.7W / m · K), siab - cov cuab yeej kub hnyiab yuav tshwm sim thaum lub sij hawm txiav. High cobalt hard alloy txiav cov cuab yeej yuav tsum tau tswj lub txiav ceev hauv qab 30m / min. Kev tswj nruj ntawm cov txheej txheem tsis yog yuav tsum tau ua thaum vuam, siv ERTi-5 tshwj xeeb vuam hlau. Tom qab vuam, nws yog ib qho tsim nyog yuav tau ua kev kho annealing ntawm 700-800℃kom tshem tawm kev ntxhov siab thiab zam qhov tshwm sim ntawm brittleness. Tsis tas li ntawd, Qib 5 tuaj yeem ua kom muaj zog ntxiv los ntawm kev kho cua sov (kev daws teeb meem kev laus), thaum Qib 2, raws li cov titanium ntshiab, tsuas tuaj yeem tshem tawm kev ntxhov siab los ntawm kev kho cua sov thiab tsis tuaj yeem txhim kho lub zog.
Qhov sib txawv ntawm daim ntawv thov scenarios yog nyob rau hauv qhov sib piv ntawm cov yam ntxwv ntawm kev ua tau zoo, uas npog qhov sib txawv siab -kawg teb. Qib 5, nrog rau nws cov txiaj ntsig tseem ceeb ntawm "lub zog siab, lub teeb yuag, thiab kub tsis kam," suav rau ntau dua 50% ntawm kev siv thoob ntiaj teb titanium alloy thiab yog cov khoom nyiam hauv kev lag luam aerospace. Nws yog dav siv nyob rau hauv cov txheej txheem tseem ceeb xws li aircraft tsaws iav, cav kiv cua, thiab fuselage fasteners, ua tiav qhov hnyav ntawm 40% piv rau cov hlau. Lub dav hlau Boeing 787 lub fuselage fasteners siv Ti-6Al-4V ELI (ultra- qib qis qis) version. Hauv kev kho mob, Qib 5 yog qhov tsim nyog rau kev thauj khoom-cov kabmob cog xws li cov pob qij txha thiab kev cog hniav. Nws tuaj yeem txhim kho hnav tsis kam los ntawm kev kho micro arc oxidation thiab yuav tsum ua tau raws li ASTM F136 tus qauv (cov ntsiab lus oxygen tsawg dua lossis sib npaug li 0.13%). Tsis tas li ntawd, nws yog dav siv nyob rau hauv lub zog teb xws li tob- hiav txwv drilling valve lub cev thiab hydrogen zog cia tank liner. Qib 2 tsom rau qhov kev xav tau ntawm "siab corrosion kuj thiab yooj yim molding", uas yog siv rau hauv kev lag luam chemical los tsim cov khoom siv corrosion-resistant xws li cov hlab ntsha, cov kav dej, thiab cov khoom siv hluav taws xob; Siv nyob rau hauv kev kho mob rau cov khoom uas tsis muaj load bearing xws li cov pob txha pob txha thiab cov thawv kho mob; Kev lag luam marine yog siv rau seawater desalination khoom, nkoj pipelines, thiab lwm yam kev siv, raws li zoo raws li rau nyias-walled structural Cheebtsam uas yuav tsum tau complex molding.
Qhov sib txawv tseem ceeb ntawm tus nqi thiab qhov xwm txheej ntawm kev lag luam muaj feem cuam tshuam rau kev txiav txim siab ntawm kev yuav khoom thiab kev siv nyiaj txiag. Tus nqi tsim khoom ntawm Qib 2 yog qis dua, nrog rau cov khoom siv raw cov nqi ntawm $ 15 txog $ 25 toj ib kg. Vim nws txoj kev siv thev naus laus zis yooj yim, cov nqi tsim khoom tom qab yog qhov tsawg, thiab cov khoom lag luam txaus txaus. Cov lus qhia tshwj xeeb (phaj, kav, tuav) tuaj yeem xa tuaj sai. Tus nqi ntawm Qib 5 yog qhov siab dua, nrog rau cov khoom siv raw li ntawm $ 30 txog $ 60 ib kilogram. Tsis tas li ntawd, kev ua haujlwm nyuaj thiab qhov xav tau rau cov cuab yeej tshwj xeeb thiab cov txheej txheem ua rau muaj kev tsim cov nqi 2-3 npaug ntawm Qib 2. Txawm li cas los xij, vim nws qhov kev hloov pauv tsis tau zoo dua -lub zog kom zoo dua, nws tseem tuav ruaj khov kev lag luam xav tau nyob rau hauv siab -kawg teb, tshwj xeeb tshaj yog nyob rau hauv aerospace thiab high-end kev lag luam (cov khoom siv kho mob) 4911 aviation forging tus qauv, ISO 5832-3 tus qauv kho mob).
Qhov sib txawv ntawm qhov sib npaug ntawm cov qauv txheej txheem thiab cov npe khoom lag luam yuav tsum tau ua tib zoo saib xyuas kom ua raws li kev sib tw hauv kev hla - ciam teb kev yuav khoom. Cov qauv thoob ntiaj teb sib raug rau Qib 2 suav nrog ASTM B265 (daim ntawv / strip), ASTM B338 (pipe), Suav teb chaws tus qauv sib npaug qib TA2, thiab ISO tus qauv ISO 5832-2. Cov qauv thoob ntiaj teb rau Qib 5 muaj ntau haiv neeg, suav nrog ASTM B348 (bars / billets), AMS 4911 (aviation forgings), ASTM F136 (kev kho mob cog), nrog rau Suav teb tus qauv sib npaug qib TC4 thiab ISO tus qauv ISO 5832-3. Thaum yuav khoom txawv teb chaws, nws yuav tsum raug sau tseg tias Qib 5 muaj qhov sib txawv ntawm qib ib txwm siv thiab qib ELI (qhov sib txawv tsawg kawg). Qib ELI muaj cov ntsiab lus tsis huv (oxygen Tsawg dua lossis sib npaug li 0.13%) thiab biocompatibility zoo dua. Nws yog tsim tshwj xeeb rau kev kho mob thiab qhov kub thiab txias thiab yuav tsum tsis txhob cuam tshuam nrog qib 5.
Kev xaiv cov ntsiab lus thiab cov ntsiab lus: Lub hauv paus ntawm kev xaiv Qib 2 thiab Qib 5 yog qhov sib npaug ntawm "kev ua tau zoo, kev ua haujlwm nyuaj, thiab kev siv nyiaj txiag". Nyob rau hauv rooj plaub uas daim ntawv thov muaj feem xyuam rau corrosion kuj thiab daim ntawv formability, tsis muaj loads siab (xws li cov kav dej tshuaj los yog cov thawv kho mob), Qib 2 yog qhov kev xaiv pheej yig tshaj plaws; Yog tias koj xav tau kom ua tiav qhov sib npaug zoo ntawm lub zog siab heev, lub teeb yuag, thiab qhov ua tau zoo ntawm qhov kub thiab txias (piv txwv li hauv aviation structural parts, load-cov kabmob kho mob, sib sib zog nqus- cov khoom siv dej hiav txwv), koj yuav tsum mus rau Qib 5, thaum muaj nqi ntau dua thiab kev txwv ntau dua. Cov ntsuas kev ua tau zoo yuav tsum tau qhia meej thiab kev xaiv qhov tseeb raws li cov khoom thauj, nruab nrab, qhov kub thiab txias, kev siv thev naus laus zis thiab cov qauv kev lag luam hauv kev pom ntawm cov kev ua haujlwm tiag tiag (nrog rau) tau qhia ua ntej kev yuav khoom.
Thov ib daim Quote
Email:bjcxtitanium@gmail.com
Whatsapp: +8613571718779
