Hauv kev tsim khoom lag luam, cov kav dej ua lub luag haujlwm hauv kev thauj cov khoom siv. Thaum thauj cov khoom siv uas muaj qhov nyuaj siab, xeb siab lossis ntws nrawm, qhov teeb meem ntawm kev hnav cov kav dej feem ntau dhau los ua qhov teeb meem loj rau cov lag luam. Cov kav dej ib txwm muaj, vim lawv tsis tiv taus kev hnav tsis txaus, feem ntau yuav tsum tau hloov pauv ntau zaus, uas tsis yog tsuas yog ua rau cov nqi nce ntxiv xwb tab sis kuj tseem yuav ua rau muaj kev cuam tshuam rau kev tsim khoom. Txhawm rau daws qhov teeb meem no kom zoo, cov kav dej alumina ceramic-lined tuaj yeem xaiv tau. Lawv qhov kev tiv taus kev hnav zoo heev tuaj yeem ua rau lub neej ua haujlwm ntawm cov kav dej ntau ntxiv thiab coj cov txiaj ntsig zoo rau kev tsim khoom lag luam.
Alumina ceramics yog cov khoom siv inorganic uas tsis yog hlau uas feem ntau yog ua los ntawm alumina (Al2O3), uas muaj qhov nyuaj heev, tiv taus kev hnav thiab tiv taus kev xeb. Lawv yog cov khoom siv zoo tshaj plaws rau kev daws teeb meem kev hnav ntawm cov kav dej.
1. Kev hnav tsis kam zoo heev
Qhov nyuaj ntawm alumina ceramics yog qhov thib ob tsuas yog pob zeb diamond, nrog Mohs hardness txog li 9, uas yog siab dua li ntawm cov hlau ib txwm (nrog Mohs hardness ntawm kwv yees li 5.5 txog 6.5). Nws qhov kev tiv thaiv kev hnav yog kaum lossis ntau pua npaug ntawm cov hlau ib txwm, thiab nws tuaj yeem tiv taus kev yaig thiab kev hnav ntawm cov ntaub ntawv. Nyob rau hauv tib qho kev ua haujlwm, lub neej ua haujlwm ntawm alumina ceramic-lined yeeb nkab yog 5 txog 10 npaug ntev dua li ntawm cov yeeb nkab ib txwm muaj, txo qhov zaus ntawm kev hloov yeeb nkab.
2. Kev tiv thaiv xeb zoo
Alumina ceramics muaj kev ruaj khov tshuaj zoo heev thiab tuaj yeem tiv taus kev yaig ntawm ntau yam corrosive media xws li acids, alkalis thiab ntsev. Hauv kev lag luam xws li kev tsim tshuaj lom neeg thiab tshuaj, thaum thauj cov corrosive media, alumina ceramic-lined kav dej tuaj yeem ua haujlwm ruaj khov rau lub sijhawm ntev, zam kev xau thiab teeb meem ua qias tuaj los ntawm kev xeb ntawm cov kav dej.
3. Kev kub siab tiv taus
Alumina ceramics muaj qhov kub yaj siab heev (kwv yees li 2050 ℃) thiab tiv taus kub zoo heev, ua rau lawv siv tau ntev hauv qhov chaw kub siab yam tsis muaj kev hloov pauv lossis ua tsis tiav. Hauv kev lag luam xws li fais fab thiab metallurgy, thaum thauj cov khoom kub siab, cov kav dej alumina ceramic tuaj yeem tiv taus qhov kev sim ntawm qhov kub siab, ua kom ntseeg tau tias kev tsim khoom txuas ntxiv mus.
4. Qhov chaw du
Lub sab hauv ntawm cov yeeb nkab alumina ceramic yog du thiab tsis muaj qhov ntxhib, uas tuaj yeem txo qhov tsis kam ntawm cov khoom siv hauv cov yeeb nkab thiab txo qis kev siv hluav taws xob. Lub caij no, qhov chaw du kuj tsis tshua lo rau cov khoom siv, txo qhov kev pheej hmoo ntawm kev thaiv hauv cov yeeb nkab.
Cov kav dej uas muaj alumina ceramic, nrog rau lawv qhov kev tiv taus kev hnav zoo, kev tiv taus corrosion, kev tiv taus kub siab thiab qhov chaw du, tau dhau los ua ib qho kev daws teeb meem zoo rau qhov teeb meem ntawm kev hnav cov kav dej. Nws tuaj yeem ua rau lub neej ua haujlwm ntawm cov kav dej ntev dua, txo cov nqi kho, txhim kho kev ua haujlwm ntau lawm, thiab xyuas kom muaj kev ruaj khov thiab kev lag luam ntawm kev tsim khoom lag luam. Nrog rau kev txhim kho tas mus li ntawm cov thev naus laus zis kev lag luam, qhov yuav tsum tau ua rau kev ua haujlwm ntawm cov kav dej tau nce siab dua. Cov kav dej uas muaj alumina ceramic yuav raug siv dav hauv ntau yam lag luam thiab ntau qhov chaw.
Lub sijhawm tshaj tawm: Tsib Hlis-28-2025