Cov ntawv ceramic alumina uas tiv taus hnav yog cov khoom siv ceramic kev lag luam feem ntau ua los ntawm txhuas oxide (Al₂O₃) thiab sintered ntawm qhov kub siab. Cov ntawv no feem ntau ncav cuag Mohs hardness ntawm 8-9. Los ntawm kev tsim tshwj xeeb ntawm qhov chaw, xws li cov chaw qis dua uas tsim cov grid, nthwv dej, lossis dot-matrix patterned glue reservoirs, lub zog sib txuas rau cov hlau substrates tau txhim kho ntau heev. Siv nrog cov nplaum ceramic-hlau tshwj xeeb, cov ntawv no tuaj yeem ua haujlwm ruaj khov hauv ib puag ncig txog li 350 ° C ntev, nrog rau qee cov khoom txawm tias tiv taus qhov kub ntawm 500 ° C. Lawv qhov ceev yog kwv yees li 3.6 g / cm³, tsuas yog ib nrab ntawm cov hlau, txo cov khoom siv thauj khoom.
Alumina hnav-resistant ceramic sheetsmuab kev tiv thaiv kev hnav zoo heev, nrog lub neej ua haujlwm uas tuaj yeem ntau dua 100 npaug ntawm cov hlau manganese thiab ntau dua 20 npaug ntawm cov hlau cam khwb cia siab chromium, nyob ntawm seb cov xwm txheej ua haujlwm li cas. Cov ntawv nrog cov ntsiab lus convex thiab concave grooves siv cov qauv tsim kua nplaum, uas tso cai rau cov nplaum kom ntws thiab sau rau hauv qab siab, tsim kom muaj qhov chaw sib txuas serrated uas ua rau muaj kev ntseeg siab rau kev teeb tsa. Cov yam ntxwv no ua rau lawv siv tau dav hauv kev lag luam xws li lub zog thermal, hlau, cement, thiab kev khawb av, tshwj xeeb tshaj yog rau cov chaw hnav hnyav xws li cov kav dej tawm ntawm lub tshuab zeb thee, cov khoom sib cais hmoov av thiab hmoov zoo, thiab cov kiv cua impellers.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-25-2025