Hauv cov chaw tsim khoom lag luam, cov kav dej yog "txoj kab cawm siav" rau kev thauj cov khoom siv. Txawm li cas los xij, ntsib kev yaig thiab kev hnav ntawm cov khoom siv tawv xws li xuab zeb, slurry, thiab cov khib nyiab pov tseg, cov kav dej ib txwm feem ntau ntsib kev xau thiab kev puas tsuaj hauv lub sijhawm luv luv. Qhov no tsis yog tsuas yog xav tau kev kaw thiab hloov pauv ntau zaus, tab sis kuj tseem yuav ua rau muaj kev phom sij rau kev nyab xeeb. Ntawm ntau cov kav dej uas tiv taus kev hnav, cov kav dej silicon carbide uas tiv taus kev hnav tau dhau los ua cov khoom lag luam kub hauv kev lag luam vim lawv qhov kev tiv taus kev hnav zoo dua. Niaj hnub no, peb yuav tham txog tus "neeg ua si nyuaj" no hauv kev lag luam kav dej.
Tej zaum yuav muaj ntau tus neeg tsis paub txog cov khoom siv silicon carbide. Hais yooj yim xwb, nws yog cov khoom siv inorganic uas tsis yog hlau uas muaj qhov nyuaj thib ob tsuas yog pob zeb diamond xwb, thiab nws muaj cov yam ntxwv "tiv thaiv kev tsim khoom". Cov yeeb nkab uas tiv taus kev hnav zoo li muab ib txheej "pob zeb diamond armor" tso rau ntawm cov yeeb nkab, uas tuaj yeem tiv taus kev cuam tshuam ntawm ntau yam khoom siv hnav siab.
Piv nrog cov kav hlau ib txwm muaj thiab cov kav dej ceramic, qhov zoo ntawmsilicon carbide hnav-resistant yeeb nkabyog qhov tseem ceeb heev. Ua ntej, nws muaj kev tiv thaiv kev hnav tag nrho. Txawm hais tias thauj cov slurry uas muaj xuab zeb quartz lossis cov khib nyiab pov tseg nrog cov khoom tawv, nws tuaj yeem tswj nws qhov chaw zoo thiab muaj lub neej ua haujlwm ntev dua li cov kav hlau ib txwm muaj, txo qhov zaus thiab tus nqi ntawm kev hloov pauv kav dej. Qhov thib ob, nws muaj kev tiv thaiv corrosion zoo. Cov ntaub ntawv kev lag luam feem ntau muaj cov khoom corrosive xws li acid thiab alkali, thiab cov kav dej ib txwm muaj feem yuav xeb thiab laus. Txawm li cas los xij, silicon carbide nws tus kheej muaj cov khoom siv tshuaj ruaj khov thiab tuaj yeem tiv taus kev yaig ntawm ntau yam acid thiab alkali media, ua rau nws tsim nyog rau cov chaw ua haujlwm nyuaj dua.
Tsis tas li ntawd xwb, cov kav dej silicon carbide uas tiv taus kev hnav kuj muaj qhov zoo - kev ua kom sov zoo, uas tuaj yeem tso cua sov sai sai thaum thauj cov khoom kub siab, zam kev hloov pauv ntawm cov kav dej los ntawm qhov kub siab hauv zos, thiab txo qhov poob cua sov, txo qis kev siv zog ntau lawm. Ntxiv mus, nws cov qauv me me ua rau nws tsis txawv ntawm cov kav dej ib txwm thaum ntsia, tsis tas yuav hloov kho cov khoom siv ntxiv. Nws tsis nyuaj rau pib thiab tuaj yeem hloov kho tau yooj yim rau ob qho tib si kev tsim kho tshiab thiab kev kho dua tshiab ntawm cov kav dej qub.
Niaj hnub no, cov kav dej silicon carbide uas tsis yooj yim hnav tau siv dav hauv ntau yam lag luam xws li kev khawb av, metallurgy, fais fab, thiab kev tsim kho tshuaj lom neeg, xws li kev thauj mus los hauv cov chaw khawb av, desulfurization thiab denitrification systems hauv cov chaw tsim hluav taws xob, thiab kev thauj mus los pov tseg hauv kev lag luam metallurgical, qhov twg lawv tuaj yeem pom. Nws tsis tsuas yog daws cov teeb meem mob ntawm cov kav dej ib txwm muaj uas yooj yim hnav thiab xeb, tab sis kuj pab cov lag luam txo lub sijhawm tsis ua haujlwm, txo cov nqi kho, thiab txhim kho kev ua haujlwm ntau lawm, ua ib qho "cuab yeej tiv taus hnav" tseem ceeb hauv kev lag luam.
Nrog rau kev txhim kho tas mus li ntawm kev siv tshuab kev lag luam, kev siv cov khoom siv silicon carbide tseem nthuav dav. Peb ntseeg tias yav tom ntej, cov kav dej silicon carbide uas tsis yooj yim hnav yuav tso tawm lub teeb thiab cua sov hauv ntau qhov chaw sib cais, muab kev tiv thaiv rau kev ua haujlwm ruaj khov ntawm kev tsim khoom lag luam.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-17-2025