Alumina ua npuas ncauj ceramic lim yog tsim los ntawm ZrO2, thiab nws qhov kub tsis kam yog 1760 degree. Nws muaj zog heev thiab zoo heev kub kub cuam tshuam kuj. Square zirconia ua npuas ncauj ceramic lim yog siv rau steel castings, uas zoo tshem tawm impurities xws li slag thiab refractory fragments los ntawm molten steel, txhim kho nto zoo, mechanical zog thiab lub koom haum zoo ntawm steel castings, thiab txo cov seem seem.
Thaum lub sij hawm casting txheej txheem, cov alumina ua npuas ncauj ceramic lim tuaj yeem ua rau cov hlau molten sau cov pwm kab noj hniav kom sib npaug. Los ntawm cov qauv peb-dimensional ntawm lub alumina ua npuas ncauj ceramic lim, turbulent flow yog hloov mus rau hauv ib qho kev ruaj khov laminar txaus, yog li paub txog cov qauv compact ntawm cov hlau castings, txhim kho qhov zoo ntawm cov hlau castings, txo qhov cuam tshuam thiab corrosion ntawm cov molten. steel nyob rau hauv lub casting kab noj hniav, thiab ncua lub neej kev pab cuam ntawm lub casting kab noj hniav.
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