Daim Ntawv Thov ntawm Titanium Alloy hauv Tsheb Tsheb Lub Hnav

Titanium thiab titanium alloys muaj cov yam ntxwv ntawm kev ntom ntom, zoo tshaj plaws cov tshuab hloov kho, zoo biocompatibility, corrosion tsis kam, siab kub ua hauj, thiab zoo kub tsis tshua muaj siab. Tam sim no, lawv tau siv dav hauv kev tsim kho tsheb. Qhov ntom ntawm titanium alloy tsuas yog 60% ntawm cov hlau, thiab lub zog yuav ncav cuag ntau tshaj 800MPa. Nws tseem tswj cov cuab yeej zoo nyob ntawm 500 ° C, thiab nws cov vuam thiab cov qauv tsim tau zoo. Nws tau siv rau hauv kev tsim cov tsheb sib tw ntau tshaj li 20 xyoo dhau los. Hloov siab tseem ceeb txo cov kev ua tau zoo ntawm lub tshuab cav, thaum txhim kho lub cav ua haujlwm.

Tam sim no, titanium alloy cov khoom siv hauv kev tsim khoom hauv tsheb yog tsuas yog muab faib rau cov tsheb tso pa tsheb, lub tshuab ua haujlwm, kev xa khoom thiab kev txo lub tshuab kev co, thiab lub cev lub cev ncej.

1. Cov kab ke tso tawm

Lub tsheb tso pa tawm ntawm cov khoom siv yuav tsum muaj cov khoom kub zoo hluav taws xob thiab tiv taus S thiab Cl caij corrosion. Tsoos tso zis valve yam li ntawm cov hlau tsis huv, tab sis nws tau pom tias titanium alloys zoo dua rau cov khoom siv valve cov pa ntawd qhov kev ua haujlwm.

Cov titanium rov qab yeeb nkab siv nyob rau hauv lub tshiab Chevrolet Corvette Z206 lub tsheb tau zoo zam kev pitting corrosion thiab weld corrosion rau ntawm cov yeeb nkab steel hlau, thaum tseem txhim kho cov roj siv ua kom muaj txiaj ntsig thiab ua kom muaj peev xwm ua kom nrawm dua, thiab kom lub tsheb sib nrug deb.

Timet, cov chaw tsim khoom lag luam titanium loj tshaj plaws hauv Tebchaws Meskas, tau cog lus rau kev tshawb nrhiav thiab kev tsim khoom thiab tsim cov tshuab ua kom cov titanium alloy tso pa tawm, thiab ntau lub tuam txhab Nyij Pooj tseem ua cov kev tshawb fawb thiab kev tsim kho. Tam sim no, Fuji Heavy Industries Co., Ltd. tau tsim cov khoom lag luam me me ntawm 440 teeb ntawm titanium alloy tsheb cov pa tsheb khiav tsheb. trachea.

2. Kev Siv Cav

Lub tsheb cav tshuab yog siv feem ntawm titanium alloy hauv qhov chaw kho tsheb. Daim ntawv thov ntawm titanium alloy nyob rau hauv lub cav system feem ntau suav nrog valve, txuas pas nrig, crankshaft, valve rooj thiab lwm yam.

Nyiv' s Lub Chaw Tsav Tsheb Hasdas siv cov forged titanium txuas cov pas nrig hauv NSX kev sib tw V-6 lub cav; Mitsubishi Cov Hluav Taws Xob siv cov titanium valve caij nplooj ntoos hlav lub rooj zaum hauv qhov muaj peev xwm, lub tshuab plaub lub tog raj kheej, thiab cov tsheb Porsche tseem siv cov titanium sib txuas.

(1) Lub Valve

Hais txog titanium alloy li qub, Tebchaws Asmeskas thiab Nyij Pooj tau tshawb fawb ntau yam. Tam sim no, Tebchaws Asmeskas feem ntau siv Ti-6Al-4V alloy los ua kom nqus li qub thiab Ti-6Al-2Sn-4Zr-2M o alloy los ua kom tso pa tawm; thaum nyob hauv Nyiv Toyota siv Ti-6Al-4V / Ti B alloy rau qhov nqus valve thiab Ti-Al-Zr-Sn-Mo-Nb-Si / Ti B alloy rau lub tso pa. Cov hom ntawm cov alloys titanium tag nrho muaj cov khoom kub zoo lub zog, kev tiv thaiv oxidation thiab nkag tsis kam, uas ua tau zoo txhim kho lub cav thiab ua haujlwm ceev tsheb.

(2) Lub rooj zaum Valve

Titanium alloy valve rooj tau siv dav hauv kev sib tw thiab tsheb ua si. Ntau tshaj 250,000 pob yog tsim txhua txhua xyoo. Lawv feem ntau yog ua los ntawm Ti-6Al-4V lossis Ti-5Al-2Cr-1Fe alloy. Vim tias cov duab ntawm lub rooj zaum qhov sib txawv yog qhov yooj yim, nws tau siv rau hauv cov kev cai machining tsis siab, thiab tsis muaj kev kho tshwj xeeb saum npoo av, tus nqi kuj pheej yig, thiab cov nyhuv yog pom tseeb hauv kev txo qhov hnyav ntawm lub tsheb.

(3) Txuas pas nrig

Kev siv cov titanium alloy txuas cov pas nrig tuaj yeem txo qhov zoo ntawm lub cav thiab txhim kho kev ua haujlwm ntawm lub tsheb. Tam sim no, cov khoom siv tseem ceeb yog Ti-6Al-4V alloy. Nyiv Daido Co., tam sim no tab tom txhim kho ob-theem titanium alloy Ti-3Al-2V-0.2Si-0.47Ce-0.27La, uas muaj cov tshuab tau zoo thiab cov khoom siv zoo heev, qaug zog thiab corrosion kuj. , Nws xav kom siv rau hauv kev sib txuas tus nqaj ntawm lub cav uas ua kom nrawm thiab nrawm.

(4) Crankshaft

Txawm hais tias titanium alloy crankshafts tsis tau siv dav nyob rau tam sim no, Ti-3Al-2.5V alloy tshwj xeeb uas tsim los ntawm Nyij Pooj tau txheeb xyuas qhov tseeb ntawm Honda tsheb. Thaum txo cov khoom muaj txiaj ntsig zoo, lub cav nrawm tau nce los ntawm 700r / min, uas ua pov thawj tias titanium Qhov ua tau zoo ntawm alloy crankshaft. Nyob rau tib lub sijhawm, Nyijpooj tau sim-tsim Ti-5Al-2Cr-Fe alloy crankshafts, thiab nws cia siab tias titanium alloys yuav siv ntau dua hauv cov crankshaft Cheebtsam.

3. Damping system

Lub hauv paus tseem ceeb ntawm lub tsheb damping kev ncua kev kawm ntawv yog lub caij nplooj ntoo hlav. Piv nrog lub tsheb caij nplooj ntoos hlav steel, titanium alloy muaj ntau dua qhov tshwj xeeb muaj zog thiab qis dua shear modulus, thiab muaj zog dua lub zog, ua rau nws tsim nyog rau kev tsim cov tsheb damping springs. Txij li thaum lub deflection ntawm lub caij nplooj ntoos hlav yog ncaj qha sib npaug rau tus naj npawb ntawm lem thiab inversely proportional to the shear modulus ntawm cov khoom, titanium alloy caij nplooj ntoos hlav xav tau tsawg dua hloov dua li lub caij nplooj ntoo hlav steel hauv qhov xwm txheej ntawm kev ua tiav tib lub caij nplooj ntoo hlav, uas zoo txo caij nplooj ntoos hlav zoo. , Tseg chaw.

Nyob rau tib lub sijhawm, lub caij nplooj zeeg titanium alloy lub caij nplooj ntoos hlav tseem tuaj yeem ua kom zoo dua qhov ua kom lub zog ntawm lub caij nplooj ntoo hlav thiab nce kev pab lub neej. Tam sim no, feem ntau ntawm cov titanium alloy springs yog ua los ntawm ib leeg-theem β titanium alloy. Lub Tuam Txhab Volkswagen Lub Tuam Txhab tau siv Lupo FSI titanium alloy iav caij nplooj ntoos hlav hauv qee lub tsheb, thiab tus nqi yog kwv yees li 3,500.

4. Lub cev ncej

Nyob rau hauv cov nqe lus ntawm lub cev lub cev ncej Cheebtsam, lub zog muaj zog dua, qis dua ntom ntom thiab zoo corrosion tsis kam ntawm titanium alloy qhia tau tias nws yog cov khoom zoo rau kev npaj tsheb lub cev ntas. Tam sim no, qee lub tuam txhab tsheb tau siv cov alloys ntawm titanium rau ntawm qhov chaw xws li lub thawv iav thiab nres caliper rab phom. Ntawm cov khoom siv sib kis, Nyij Pooj tam sim no tab tom txhim kho txoj kev loj-txheej txheem rau kev npaj ua cov titanium alloy casings. Piv nrog steel casings, titanium alloy casings zoo tuaj yeem txo qhov cuam tshuam ntawm flywheel thiab muaj cov nyhuv zoo dua cushioning.

Ntxiv rau, titanium alloys kuj tau siv nyob rau hauv automen fasteners thiab lwm yam. Nrog kev txhim kho tas li ntawm titanium alloy npaj thev naus laus zis thiab kev lag luam tsheb, titanium alloys yuav muaj tseeb ntau siv hauv qhov chaw kho tsheb.

5. Qhov tseem ceeb ntawm titanium alloys rau lub teeb rau ntawm lub tsheb me

Cov tuam txhab tshawb xyuas txawv teb chaws tau xam thiab pom tias thaum qhov zoo ntawm lub tsheb' s kev pabcuam poob qis txog 10%, kev siv roj yuav txo los ntawm 6% mus rau 8%. Cov kev tshawb fawb kuj tau qhia tias rau txhua txhua 91kg ntawm cov kev poob phaus, qhov nruab nrab ntawm 0.43km moos rau cov roj tsheb tuaj yeem mus ncig. Yog li no, nrog txoj kev txhim kho txuas ntxiv ntawm kuv lub teb chaws' kev lag luam thiab kev nce ntxiv ntawm cov tsheb, lub tsheb sib dua hnyav tau dhau los ua ib txoj hauv kev tseem ceeb los txo kev siv hluav taws xob thiab txo cov pa paug.

Titanium thiab titanium alloy cov ntaub ntawv siv tam sim no dav siv nyob rau hauv qhov chaw pib vim lawv lub cev zoo nkauj thiab tshuaj lom neeg. Kev siv cov khoom siv titanium tsis zoo tsuas yog txhim kho kev ua haujlwm thiab kev nyab xeeb ntawm lub tsheb, tab sis kuj tseem ua lub luag haujlwm tseem ceeb hauv lub tsheb sib ntxiv, kom zoo txo ​​lub tsheb zoo' s kev pabcuam thiab txo kev siv roj. Cov.

Piv nrog cov tsoos stainless hlau, cov tso zis tso ua yeeb yaj kiab (titanium exhaust nozzle-xa cov yeeb nkab ua ke) yog siv rau hauv cov tsheb tso tsheb, uas tuaj yeem txo qhov hnyav los ntawm kwv yees li 8.2kg. Kev siv cov khoom siv ntawm cov titanium alloy hloov los hloov cov tsoos hlau thiab cov ntaub ntawv pov rau cov khoom siv hlau hauv cov cav ntawm qhov chaw xws li qub thiab txuas cov pas nrig tuaj yeem txo qhov zoo ntawm lub cav.

Raws li kev tshawb fawb ntawm Nyij Pooj tsheb kev lag luam, kev siv ntawm kwv yees li 0.8kg ntawm titanium cov khoom siv rau cov fais fab tsheb sib npaug yog sib npaug rau cov txiaj ntsig ntawm 20kg ntawm steel qhov; txhua lub tog raj titanium valve tuaj yeem txo qhov hnyav ntawm kwv yees li 10g piv rau steel valve rooj; txawm tias Rods thiab crankshafts tau siv rau hauv cov titanium alloys, uas muaj txiaj ntsig zoo tshaj plaws rau kev txo cov tshuab loj.

Ntawm qhov kev vibration damping system, txhua lub caij nplooj ntoos hlav titanium alloy tuaj yeem txo qhov huab hwm coj los ntawm ntau dua 60% piv nrog steel txhaws. Raws li 4 qhov kev txwv tawm rau ib lub tsheb, tom qab hloov mus rau titanium alloy springs, txhua lub tsheb tuaj yeem txo qhov hnyav los ntawm 9 ~ 13.6kg. Tsis tas li ntawd, qhov ntau ntawm titanium alloy silencer tsuas yog 5 ~ 6kg, uas yog 40% sib zog dua li cov qauv ntawm stainless hlau silencer.

Noj cov tsheb thauj khoom hauv lub cev nruab nrab zoo li piv txwv, yog tias qhov sib tw ntawm titanium alloy tsheb hauv tsheb tau siv los hloov qhov qub, lub tsheb' s teeb meem nyhav yuav raug txo txij li ntawm 1500kg txog li 1000kg, qhov hnyav txo tus nqi tuaj yeem ncav cuag 30%, thiab cov roj siv tag nrho tuaj yeem txo 20%. Qhov saum toj no, qhov no yuav zoo heev txo cov kev siv roj ntawm lub ntiaj teb, thiab zoo txo ​​cov teeb meem ntawm lub zog tsis txaus thiab ib puag ncig cov pa phem.

Cov ntaub ntawv saum toj no qhia tau hais tias kev siv cov titanium alloys muaj qhov cuam tshuam loj hauv kev txo qhov hnyav ntawm lub tsheb. Hauv kev lag luam tsheb niaj hnub, daim ntawv thov siv tshuab ntawm titanium thiab titanium alloys hauv tsheb qhov chaw yuav tsum tau txuas ntxiv txhim kho kom qhov kev faib ua feem ntawm titanium alloys hauv tsheb.

Tam sim no, daim ntawv thov ntawm titanium alloy nyob hauv kuv lub teb chaws' s kev lag luam tsheb tseem muaj nyob rau theem sim. Cov teeb meem tseem ceeb yog tias tus nqi ntawm cov ntaub ntawv ntawm titanium alloy yog siab dhau, thiab seem ua rau cov txheej txheem nyuaj.

Yog li no, txoj haujlwm tseem ceeb yav tom ntej yuav tsum tau txo tus nqi ntawm titanium alloy qhov chaw los ntawm kev tsim cov khoom siv titanium alloy cov nqi, txo cov nqi tsim khoom ntawm titanium alloy cov ntaub ntawv raw khoom, thiab txhim kho kev ua haujlwm ntawm titanium alloy qhov chaw los ntawm kev txhim kho tshuab thev naus laus zis.

Cov kev kawm txawv teb chaws tau qhia tias tsuas yog kev sib koom ua ke ntawm tsheb tsim thiab tsim thiab titanium cov kev tshawb fawb thiab kev loj hlob tuaj yeem muab cov ntaub ntawv zoo dua ntawm titanium alloy cov khoom rau hauv lub tsheb.

Nws ntseeg tau tias nrog kev nruam kev tshawb nrhiav thiab kev loj hlob ntxiv, titanium thiab titanium alloys yuav ua lub luag haujlwm tseem ceeb hauv kuv lub teb chaws' s lub tsheb niaj hnub kev lag luam thiab txhawb txoj kev loj hlob txuas ntxiv ntawm kev lag luam tsheb.

Nicole