Hauv ntau qhov xwm txheej kev lag luam, cov khoom siv feem ntau yuav tsum tau daws teeb meem ntau yam chaw ua haujlwm hnyav, thiab cov teeb meem hnav thiab tsim kua muag cuam tshuam rau lub neej ua haujlwm thiab kev ua haujlwm zoo ntawm cov khoom siv. Kev tshwm sim ntawm silicon carbide hnav-resistant lining muab kev daws teeb meem zoo rau cov teeb meem no, thiab nws maj mam dhau los ua lub ntaub thaiv ruaj khov rau cov khoom siv kev lag luam.
Silicon carbide, ib qho sib xyaw ua los ntawm carbon thiab silicon, muaj cov yam ntxwv zoo kawg nkaus. Nws qhov nyuaj yog qhov siab heev, thib ob tsuas yog pob zeb diamond nyuaj tshaj plaws hauv xwm, thiab nws qhov nyuaj Mohs yog qhov thib ob tsuas yog pob zeb diamond, uas txhais tau tias nws tuaj yeem yooj yim tiv taus kev khawb thiab txiav ntawm ntau yam khoom tawv thiab ua tau zoo hauv kev tiv thaiv kev hnav. Tib lub sijhawm, silicon carbide kuj muaj cov coefficient qis ntawm kev sib txhuam, uas tuaj yeem tswj tus nqi hnav ntawm qib qis heev nyob rau hauv cov xwm txheej nyuaj xws li kev sib txhuam qhuav lossis kev tsis zoo, ua rau lub neej ua haujlwm ntawm cov khoom siv ntev dua.
Ntxiv rau qhov nyuaj thiab qhov sib txhuam qis, cov khoom siv tshuaj lom neeg ntawm silicon carbide kuj ruaj khov heev, nrog rau kev ua haujlwm zoo heev. Nws muaj zog tiv taus xeb los ntawm cov kua qaub muaj zog (tshwj tsis yog hydrofluoric acid thiab kub concentrated phosphoric acid), cov hauv paus muaj zog, cov ntsev molten, thiab ntau yam hlau molten (xws li txhuas, zinc, tooj liab). Cov yam ntxwv no tso cai rau nws ua haujlwm ruaj khov txawm tias nyob rau hauv qhov chaw nyuaj uas cov xov xwm corrosive thiab hnav coexist.
Los ntawm qhov pom ntawm cov khoom siv thermal thiab lub cev, silicon carbide kuj ua tau zoo heev. Nws muaj cov thermal conductivity siab thiab tuaj yeem tshem tawm cov cua sov tsim los ntawm kev sib txhuam, tiv thaiv cov khoom mos lossis thermal stress cracking los ntawm kev kub dhau ntawm cov khoom siv, thiab tswj kev hnav zoo; Nws cov coefficient ntawm thermal expansion yog qis, uas tuaj yeem ua kom muaj kev ruaj khov ntawm cov khoom siv thiab txo qhov puas tsuaj ntawm thermal stress rau cov khoom siv thaum muaj kev hloov pauv kub. Ntxiv mus, silicon carbide kuj tseem ua tau zoo heev, nrog rau qhov kub siv txog li 1350 ° C hauv huab cua (oxidizing ib puag ncig) thiab txawm tias siab dua hauv inert lossis txo ib puag ncig.
Raws li cov yam ntxwv saum toj no, cov ntaub thaiv silicon carbide uas tiv taus tau siv dav hauv ntau yam lag luam. Hauv kev lag luam fais fab, cov kav dej siv los thauj cov khoom xws li cov tshauv ya feem ntau raug ntxuav los ntawm cov khoom khov kho ceev ceev, thiab cov kav dej khoom siv niaj hnub hnav sai sai. Txawm li cas los xij, tom qab siv cov ntaub thaiv silicon carbide uas tiv taus, qhov kev tiv thaiv ntawm cov kav dej tau zoo dua qub, thiab lub neej kev pabcuam tau ntev dua; Hauv kev lag luam tsuas, kev teeb tsa cov ntaub thaiv silicon carbide uas tiv taus rau ntawm cov khoom tiv taus xws li cov kav dej xa dej thiab cov khoom siv hauv lub tshuab zom khoom txo qhov zaus saib xyuas cov khoom siv thiab txhim kho kev ua haujlwm ntau lawm; Hauv kev lag luam tshuaj lom neeg, ntsib cov xov xwm corrosive thiab cov chaw ua haujlwm tshuaj lom neeg nyuaj, cov ntaub thaiv silicon carbide uas tiv taus tsis yog tsuas yog tiv taus xwb, tab sis kuj tiv taus cov tshuaj xeb, ua kom ntseeg tau tias kev ua haujlwm zoo thiab ruaj khov ntawm cov khoom siv.
Hauv ntej, silicon carbide hnav-resistant lining muab kev tiv thaiv zoo rau cov khoom siv hauv kev lag luam nrog nws cov kev ua tau zoo heev. Nrog rau kev txhim kho tas mus li ntawm cov ntaub ntawv tshawb fawb, kev ua tau zoo ntawm silicon carbide hnav-resistant lining yuav txuas ntxiv mus rau qhov zoo tshaj plaws, thiab tus nqi yuav raug txo qis ntxiv. Yav tom ntej, nws yuav raug siv rau hauv ntau qhov chaw thiab ua lub luag haujlwm ntau dua hauv kev ua haujlwm zoo thiab ruaj khov ntawm kev tsim khoom lag luam.
Lub sijhawm tshaj tawm: Lub Xya Hli-28-2025