Titanium alloysmuaj lub zog siab (lub zog tensile txog li 900-1200 MPa) thiab qhov ceev tsawg (kwv yees li 4.5 g / cm³, tsuas yog 60% ntawm cov hlau), txo qis zog inertial hauv kev txav mus los thiab txhim kho lub cav teb ceev.
Lawv kuj pom zoo corrosion kuj thiab siab -kub stability (kev khiav hauj lwm kub txog li 400-500 degree), ua rau lawv haum rau hnyav cav khiav hauj lwm tej yam kev mob.
Cov qib ib txwm muaj xws li Ti-6Al-4V (Gr5) thiab Ti-6Al-2Sn-4Zr-6Mo, uas nws cov khoom siv kho tshuab tuaj yeem ua kom zoo dua los ntawm kev kho cua sov.
Daim ntawv thov Scenario
High -kev ua tau zoo automotive engines: Siv nyob rau hauv kev sib tw tsheb thiab supercars kom txo tau crankshaft load thiab ua rau kom lub siab tshaj plaws cav ceev (xws li, F1 sib xeem khiav tsheb cav muaj peev xwm ncav cuag speeds ntawm tshaj 15,000 rpm).
Aerospace xyaw: Siv nyob rau hauv lub hwj chim systems ntawm nyoob hoom qav taub, fighter dav hlau, thiab lwm yam, los hloov steel txuas rods, txo tag nrho cov hnyav thiab txhim kho roj efficiency.
High- maus taus kawg: Siv dav hauv - cov cav hloov pauv loj los txo kev co thiab txhim kho kev tuav haujlwm.
Tsim kev xav thiab kev sib tw
1. Striffness Compensation Design
Txij li thaum lub elastic modulus ntawm titanium alloy yog kwv yees li ib nrab ntawm cov hlau, lub zos thickness nce yuav tsum tau them rau qhov sib txawv nyob rau hauv nruj piv rau steel txuas rods.
2. Tus nqi tsim nyog
Cov nqi raw khoom siab: titanium raw khoom yog ob peb zaug kim dua hlau.
Cov nqi ua haujlwm siab: Cov cuab yeej tseem ceeb hnav, kev ua haujlwm ceev yog 60-80% qis dua hlau.
Tus nqi ntawm titanium alloy txuas rods yog kwv yees li 4-5 npaug ntawm cov hlau sib tw tsheb sib txuas.
3. Kev Tsim Nyog Ntau Lawm
Kev txo nqi tuaj yeem ua tiav los ntawm:
Siv cov khoom pheej yig alloying los hloov cov khoom kim.
Txhim kho cov txheej txheem ua haujlwm kub (piv txwv li, kub- dov coils).
Txhim kho machinability (piv txwv li, Ti-5Al-1Fe).
Kev siv cov txheej txheem zoo xws li kev sib cais ntawm pob txha.
Hauv cov ntsiab lus, titanium alloy txuas cov pas nrig yog cov khoom tseem ceeb rau kev ua tiav lub teeb yuag hauv siab - kev ua haujlwm cav. Lawv cov txiaj ntsig tseem ceeb nyob hauv: qhov hnyav hnyav heev (30-40%), txo qis reciprocating inertial loj; zoo heev qaug zog tsis kam, yoog mus rau siab -ceev cyclic loading; thiab zoo corrosion kuj, ncua kev pab cuam lub neej. Txawm hais tias lawv cov nqi siab dua, nrog rau kev txhim kho qis -tus nqi titanium alloys (xws li Ti-5Al-1Fe thiab Super-TIX™ series) thiab cov thev naus laus zis ua tau zoo, titanium alloy txuas rods tau nthuav dav los ntawm cov tsheb sib tw thiab cov maus taus high-end mus rau ntau yam ntawm cov khoom tsim tawm. Tseem muaj chaw txuas ntxiv rau kev txhim kho thev naus laus zis hauv kev txhim kho cov qauv ntawm elasticity thiab txo cov nqi tsim khoom ntxiv.
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