Thaum siv cov khoom siv hauv kev lag luam, muaj ib qho khoom uas yooj yim tsis quav ntsej tab sis tseem ceeb heev - lub foob. Nws zoo li "lub nplhaib foob" ntawm lub cuab yeej, uas yog lub luag haujlwm cais cov kua thiab cov pa roj sab hauv, tiv thaiv kev xau. Thaum lub foob tsis ua haujlwm, nws tuaj yeem cuam tshuam rau kev ua haujlwm ntawm lub cuab yeej lossis ua rau muaj kev phom sij rau kev nyab xeeb. Ntawm ntau cov ntaub ntawv foob, silicon carbide ceramics maj mam dhau los ua "cov neeg nyiam tshiab" hauv kev lag luam siab kawg vim lawv cov txiaj ntsig tshwj xeeb.
Tej zaum yuav muaj ib txhia neeg xav paub, puas yog cov khoom ua los ntawm av nplaum tsis yooj yim tawg? Yuav siv nws li cas los ua cov foob? Qhov tseeb,silicon carbide ceramicstxawv kiag li ntawm cov tais thiab khob ua los ntawm cov av nplaum uas peb pom hauv peb lub neej txhua hnub. Nws yog cov khoom siv av nplaum uas ua los ntawm cov txheej txheem tshwj xeeb, nrog rau qhov nyuaj thib ob tsuas yog pob zeb diamond. Cov foob ua los ntawm nws ua ntej daws qhov teeb meem ntawm cov khoom siv foob ib txwm muaj "hnav-resistant". Hauv cov khoom siv ceev ceev xws li twj dej thiab compressors, cov foob yuav tsum tau txhuam rau lwm yam khoom ntev, thiab cov khoom siv ib txwm yuav hnav thiab deform sai sai. Txawm li cas los xij, qhov kev tiv thaiv kev hnav ntawm silicon carbide ceramics tso cai rau lawv "lo rau lawv cov ncej" ntev nyob rau hauv cov xwm txheej ua haujlwm hnyav, ua rau lub neej ua haujlwm ntawm cov khoom siv ntev dua.
Ntxiv rau qhov tsis kam hnav, kev tiv taus kub siab thiab kev tiv taus corrosion kuj yog qhov tshwj xeeb ntawm silicon carbide ceramic seals. Hauv kev lag luam xws li tshuaj lom neeg thiab metallurgical, cov khoom siv feem ntau los rau hauv kev sib cuag nrog cov xov xwm corrosive xws li cov kua qaub muaj zog thiab alkalis, thiab tuaj yeem tiv taus qhov kub ntawm ntau pua lossis txawm tias txhiab degrees Celsius. Cov hlau ib txwm muaj feem yuav xeb thiab deformation ntawm qhov kub siab, thaum cov roj hmab seals mos thiab tsis ua haujlwm ntawm qhov kub siab. Silicon carbide ceramics tsis tsuas yog tuaj yeem tiv taus kev yaig ntawm ntau yam tshuaj lom neeg, tab sis kuj tseem tswj tau kev ua haujlwm ruaj khov hauv qhov chaw kub siab, tsis muaj deformation, tawg thiab lwm yam teeb meem, muab kev lees paub rau kev ua haujlwm zoo ntawm cov khoom siv hauv qab qhov xwm txheej hnyav.
Nws tsim nyog hais tias cov foob pob zeb silicon carbide kuj muaj cov yam ntxwv ntawm "lub teeb" thiab "kev sib txhuam tsawg". Nws qhov ceev yog me dua li ntawm cov hlau, uas tuaj yeem txo qhov hnyav tag nrho ntawm cov khoom siv; Tib lub sijhawm, nws qhov chaw du thiab qhov sib txhuam coefficient qis, uas tuaj yeem txo qhov siv hluav taws xob thaum lub sijhawm ua haujlwm thiab pab cov khoom siv ua haujlwm tau zoo dua. Qhov no yog qhov tseem ceeb rau cov lag luam niaj hnub uas nrhiav kev txuag hluav taws xob thiab txo kev siv.
Txij li cov foob tsis pom tseeb mus rau "tus txiv neej tseem ceeb" uas txhawb nqa kev ua haujlwm ruaj khov ntawm cov khoom siv lag luam siab, silicon carbide ceramics qhia txog lub zog ntawm "kev lag luam hloov pauv cov ntaub ntawv". Nrog rau kev txhim kho tas mus li ntawm cov khoom siv ua haujlwm hauv kev lag luam, lub foob ceramic no, uas ua ke cov txiaj ntsig xws li kev hnav tsis kam, kev kub siab, thiab kev tiv thaiv corrosion, yuav ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw yav tom ntej thiab dhau los ua "tus saib xyuas" tiag tiag ntawm cov khoom siv lag luam.
Lub sijhawm tshaj tawm: Cuaj hlis-05-2025