Nyob rau hauv qhov chaw uas cov ntaub ntawv kev lag luam hloov zuj zus tas li, cov khoom siv fiber ceramic tau tshwm sim los ua ib qho kev daws teeb meem uas hloov pauv ntau yam, muab ntau yam txiaj ntsig thoob plaws ntau yam kev lag luam.
Kev Ua Haujlwm Thermal Tsis Muaj Qhov Sib Tw
Ib qho ntawm cov yam ntxwv zoo tshaj plaws ntawm cov ntawv fiber ceramic yog nws cov khoom rwb thaiv cua sov zoo heev. Nrog rau qhov ua tau zoo ntawm cua sov tsawg heev, feem ntau yog li ntawm 0.03 - 0.1 W / m · K, nws ua haujlwm ua ib qho thaiv kev hloov pauv cua sov. Qhov no txhais tau tias nyob rau hauv cov chaw ua haujlwm kub siab, xws li cov chaw ua hlau, cov chaw ua kom sov iav, thiab cov chaw ua roj av, cov ntawv fiber ceramic tuaj yeem txo qhov poob cua sov, ua rau txuag hluav taws xob ntau. Piv txwv li, hauv lub cub tawg cua sov hlau, thaum cov ntawv fiber ceramic siv ua cov khoom rwb thaiv tsev rau phab ntsa thiab lub ru tsev ntawm lub cub tawg, kev siv hluav taws xob tuaj yeem txo qis, ua rau cov nqi khiav lag luam qis dua.
Tsis tas li ntawd xwb, cov khoom siv fiber ceramic muaj kev ruaj khov zoo heev thaum kub thiab txias. Nws tuaj yeem tiv taus qhov kub thiab txias txij li 1000 ° C txog 1600 ° C, nyob ntawm seb cov khoom sib xyaw thiab qib twg. Qhov no ua rau nws zoo tagnrho rau kev siv rau hauv cov chaw uas kub heev, zoo li hauv cov ntaub sab hauv ntawm cov cub tawg hauv kev lag luam hlau thiab hlau, qhov twg nws tsis tsuas yog rwb thaiv tsev xwb tab sis kuj tiv taus qhov kub thiab txias heev, ua kom lub cub tawg ua haujlwm tau zoo thiab ntev nws lub neej kev pabcuam.
Cov yam ntxwv ntawm lub cev thiab lub tshuab
Txawm hais tias nws muaj kev ua haujlwm zoo heev, cov khoom siv fiber ceramic tsis ua rau lub zog kho tshuab puas tsuaj. Nws muaj lub zog compressive siab, ua kom ntseeg tau tias lub sijhawm ntev thiab tiv taus kev ntxhov siab ntawm cov khoom siv. Qhov no yog qhov tseem ceeb hauv cov ntawv thov uas cov khoom siv yuav raug kev co, kev cuam tshuam, lossis cov khoom hnyav. Piv txwv li, hauv cov qhov cub hluav taws xob uas ua haujlwm tas li thiab tej zaum yuav muaj qee qib kev co tshuab, cov khoom siv fiber ceramic ua rau nws tswj tau nws qhov kev ncaj ncees ntev dua, txo qhov xav tau hloov pauv ntau zaus.
Cov khoom siv kuj tsis yog - brittle, nrog rau kev ywj pheej zoo thiab toughness. Qhov cwj pwm no tso cai rau kev teeb tsa thiab kev tuav yooj yim. Nws tuaj yeem txiav, puab, thiab khoov tau yooj yim kom haum rau ntau yam geometries nyuaj, ua rau nws hloov tau yooj yim rau ntau yam kev xav tau ntawm cov haujlwm sib txawv. Txawm hais tias nws yog rau kev sib txuas ntawm lub raj xa dej hauv lub Hoobkas tshuaj lossis tsim cov khoom siv rwb thaiv tsev rau cov khoom siv cua sov tshwj xeeb, cov laug cam fiber ceramic tuaj yeem hloov kho tau yooj yim. Tsis tas li ntawd, nws muaj qhov ceev sib xws, uas ua rau nws ua tau zoo thoob plaws hauv pawg thawj coj.
Kev Tiv Thaiv Tshuaj thiab Kev Siv Tau Ntau Yam
Cov ntawv fiber ceramic qhia tau tias nws tiv taus tshuaj lom neeg zoo heev rau feem ntau cov tshuaj, tsis suav nrog cov kua qaub thiab alkalis muaj zog. Qhov no ua rau nws tsim nyog siv rau hauv ntau qhov chaw ua lag luam, suav nrog cov uas muaj huab cua corrosive. Piv txwv li, hauv kev lag luam petrochemical, qhov twg cov tshuaj tiv thaiv thiab muaj ntau yam tshuaj lom neeg, cov ntawv fiber ceramic tuaj yeem siv los rwb thaiv tsev cov reactors thiab cov kav dej yam tsis muaj kev pheej hmoo ntawm kev raug corroded, yog li ua kom ntseeg tau tias muaj kev nyab xeeb thiab ua haujlwm tau zoo ntawm cov khoom siv.
Qhov ua tau ntau yam ntawm cov ceramic fiber board tau pom tseeb ntxiv los ntawm nws cov kev siv dav dav. Hauv kev lag luam aerospace, nws yog siv rau kev rwb thaiv tsev ntawm lub cav rocket, tiv thaiv lub cav ntawm qhov kub siab heev uas tsim thaum lub sijhawm hlawv. Hauv kev tsim kho thiab kev tsim kho, nws tuaj yeem koom ua ke rau hauv cov qhov rooj thiab phab ntsa uas tiv taus hluav taws, muab ib txheej ntxiv ntawm kev tiv thaiv hluav taws vim nws qhov xwm txheej tsis kub hnyiab. Hauv kev lag luam khoom siv hauv tsev, nws yog siv rau hauv qhov cub thiab cov cua sov kom txhim kho kev siv hluav taws xob thiab kev nyab xeeb.
Zoo rau ib puag ncig thiab pheej yig
Nyob rau hauv lub ntiaj teb niaj hnub no, kev ruaj khov ntawm ib puag ncig yog qhov tseem ceeb uas yuav tsum xav txog. Ceramic fiber board yog ib qho kev xaiv uas zoo rau ib puag ncig vim nws yog ua los ntawm cov khoom siv inorganic thiab tsis tso tawm cov tshuaj lom neeg thaum lub sijhawm tsim khoom lossis siv. Tsis tas li ntawd, nws cov khoom txuag hluav taws xob pab txo qis kev siv hluav taws xob tag nrho, uas ua rau txo cov pa roj carbon dioxide.
Los ntawm qhov pom ntawm tus nqi, txawm hais tias kev nqis peev thawj zaug rau hauv cov khoom siv fiber ceramic yuav zoo li kim dua piv rau qee cov ntaub ntawv rwb thaiv tsev ib txwm muaj, nws cov txiaj ntsig mus sij hawm ntev ntau dua li tus nqi. Nws lub zog ruaj khov, lub peev xwm txuag hluav taws xob, thiab qhov yuav tsum tau saib xyuas tsawg ua rau muaj kev txuag nyiaj ntau dhau lub sijhawm ua haujlwm. Piv txwv li, hauv lub cub tawg loj, kev siv hluav taws xob tsawg dua thiab tsawg dua kev hloov pauv vim yog kev siv cov khoom siv fiber ceramic tuaj yeem ua rau muaj kev txuag nyiaj ntau hauv cov nqi hluav taws xob thiab cov nqi saib xyuas.
Yog tias koj tab tom nrhiav kev daws teeb meem rwb thaiv tsev uas ua tau zoo, siv tau ntau yam, thiab pheej yig, cov ceramic fiber board yog cov lus teb. Peb lub tuam txhab muaj ntau yam ceramic fiber boards zoo uas tsim los kom tau raws li koj cov kev xav tau tshwj xeeb. Tiv tauj peb hnub no kom paub ntau ntxiv txog seb peb cov khoom tuaj yeem txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm koj li cas.
Lub sijhawm tshaj tawm: Lub Rau Hli-30-2025
