Txij li thaum nrhiav tau ntawm titanium nyob rau hauv 1790, tib neeg tau tshawb nrhiav rau ib puas xyoo kom tau txais nws cov khoom tshwj xeeb. Xyoo 1910, tib neeg thawj zaug tsim cov hlau titanium, tab sis txoj kev siv titanium alloys ntev thiab nyuaj. Nws tsis yog txog 40 xyoo tom qab xyoo 1951 tias kev tsim khoom lag luam thaum kawg tau pom.
Titanium alloysmuaj cov yam ntxwv ntawm lub zog tshwj xeeb, kev tiv thaiv corrosion, siab kub tsis kam, thiab qaug zog tsis kam. Qhov hnyav ntawm titanium alloys ntawm tib qhov loj tsuas yog 60% ntawm cov hlau, tab sis nws muaj zog dua cov hlau alloy. Vim nws cov khoom zoo, titanium alloys tau siv dav hauv aviation, aerospace, tsim hluav taws xob, nuclear zog, nkoj, tshuaj, thiab khoom siv kho mob.
Yog vim li cas rau qhov nyuaj ntawm titanium alloy ua
Plaub yam ntxwv ntawm titanium alloys, xws li thermal conductivity tsawg, kev ua hauj lwm hnyav, siab affinity nrog cov cuab yeej txiav, thiab cov yas me me deformation, yog cov laj thawj tseem ceeb rau qhov nyuaj ntawm titanium alloy ua. Nws qhov ntsuas kev txiav tsuas yog sib npaug li 20% ntawm cov hlau yooj yim-rau-txiav.
Tsawg thermal conductivity
Lub thermal conductivity ntawm titanium alloy tsuas yog kwv yees li 16% ntawm 45 # hlau. Lub tshav kub tsis tuaj yeem ua kom deb ntawm lub sijhawm thaum ua haujlwm, ua rau lub hauv paus kub ntawm qhov txiav (qhov ntsuas kub thaum ua haujlwm yog ntau tshaj 1 npaug ntawm 45 # steel), uas yooj yim ua rau diffuse hnav ntawm lub cuab yeej.
Ua haujlwm hnyav hnyav
Kev ua hauj lwm-hardening tshwm sim ntawm titanium alloy yog qhov pom tseeb, thiab txheej txheej txheej tawv tawv yog hnyav dua li cov hlau tsis muaj steel, uas yuav ua rau muaj qee yam teeb meem hauv kev ua haujlwm tom ntej, xws li kev puas tsuaj rau cov cuab yeej ciam teb.
High affinity nrog cov cuab yeej
Adhesion hnyav nrog titanium-muaj cemented carbide.
Cov yas me me deformation
Nws yog hais txog 1/2 ntawm cov elastic modulus ntawm 45 steel, yog li cov elastic rov qab yog loj thiab kev sib txhuam loj heev. Nyob rau tib lub sijhawm, cov khoom ua haujlwm tseem ua rau clamping deformation.
Cov lus qhia tshwj xeeb rau kev ua cov titanium alloy
Raws li kev nkag siab ntawm kev ua haujlwm ntawm titanium alloy thiab kev paub dhau los, cov lus qhia tseem ceeb rau kev ua cov titanium alloy yog raws li hauv qab no:
(1) Siv cov hniav nrog lub kaum sab xis geometry kom txo tau txiav quab yuam, txiav cov cua sov, thiab ua haujlwm deformation.
(2) Khaws ib qho khoom noj tas li kom tsis txhob ua kom tawv nqaij ntawm lub workpiece. Cov cuab yeej yuav tsum ib txwm nyob rau hauv pub thaum lub sij hawm txiav. Lub radial txiav qhov tob thaum lub sij hawm milling yuav tsum yog 30% ntawm lub vojvoog.
(3) Siv cov khoom siv hluav taws xob siab thiab cov dej ntws siab los xyuas kom lub thermal stability ntawm cov txheej txheem machining thiab tiv thaiv degeneration degeneration ntawm workpiece thiab cov cuab yeej puas vim kub dhau heev lawm.
(4) Ua kom cov hniav ntse ntse. Cov cuab yeej Blunt yog qhov ua rau muaj cua sov thiab hnav, uas tuaj yeem ua rau cov cuab yeej tsis ua haujlwm.
(5) Cov txheej txheem titanium alloy nyob rau hauv lub xeev softest ntau li ntau tau, vim hais tias cov khoom yuav nyuaj rau txheej txheem tom qab hardening. Kev kho cua sov ua kom lub zog ntawm cov khoom siv thiab ua kom cov hniav hnav.
Cov ntaub ntawv tiv tauj:
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