Cov nqe lus no peb yuav tham ntxiv txog qhov kub cia ntawm magnesia bricks tam sim ntawd tom qab tsab xov xwm dhau los.
Cov txheej txheem tsim tawm ntawm cov hluav taws xob magnesia-chrome cib feem ntau zoo ib yam li cov magnesia cib. Txhawm rau tshem tawm MgO thiab Cr2O3, Al2O3 lossis ncaj qha ua ke ntawm magnesia-chrome cib thaum lub sijhawm tua.
Cov nyhuv loosening tshwm sim los ntawm kev nthuav dav ntawm cov hlau oxides los ua spinel tuaj yeem ua los ntawm magnesia-chrome cib los ntawm kev siv cov khoom siv hluavtaws co-sintered. Tsis tas li ntawd, muaj cov pob zeb uas tsis tau hlawv magnesia chrome, piv txwv li, tsis tau hlawv Magnesia Chrome Cib ua ke nrog inorganic magnesium ntsev daws. Kev tsim cov txheej txheem ntawm unburned magnesia-chrome cib yog qhov yooj yim, tus nqi qis, thiab thermal stability yog qhov zoo, tab sis qhov kub thiab txias zog yog tsawg dua li ntawm cov cib raug rho tawm haujlwm. Nyob rau xyoo 1950s, ib qho hu ua "direct-bonded" magnesia-chrome cib tau tsim. Cov yam ntxwv ntawm cov cib no yog cov khoom siv ntshiab huv, kub kub kub, kev sib txuas ncaj qha ntawm cov theem kub xws li periclase thiab spinel, thiab qis melting theem xws li silicate yog faib rau hauv cov Islands tuaj. Yog li ntawd, lub siab kub ntawm lub cib yog ho txhim kho. Lub zog thiab slag kuj.
Txoj kev ua cib los ntawm kev sib tsoo thiab calcining lub compacts nrog chrome ore thiab magnesia yog ib qho kev ntsuas zoo los tshem tawm cov nyhuv loosening. Piv nrog rau cov magnesia-chrome cib zoo tib yam, Cov Lag Luam Lag Luam Magnesia Chrome Cib ua los ntawm cov qauv no muaj qis porosity thiab siab dua compressive zog, softening kub nyob rau hauv load thiab flexural zog. Lub magnesia-chrome cib ua los ntawm chrome ore-magnesite hmoov compacts thiab hluavtaws magnesia-chrome xuab zeb calcined ntawm qhov kub thiab txias muaj qhov zoo dua slag tsis kam thiab siab kub zog dua li lwm yam magnesia-chrome cib.
Tsis tas li ntawd, kuj tseem muaj cov fused-cam khwb cia magnesia-chrome cib tau los ntawm cov ntaub ntawv ncaj qha los ntawm cov khoom siv magnesia-chromium hauv lub cub hluav taws xob, thiab fused Lag luam wholesale Magnesia Chrome Cib ua los ntawm fused magnesia-chromium cov ntaub ntawv raws li cov txheej txheem cib ua ke nrog magnesia- chrome cib.
Magnesia cib kuj tseem hu ua magnesia bricks. Cov ntsiab lus MgO yog siab dua 80 feem pua -85 feem pua . Nws yog tsim los ntawm ntuj magnesite calcined ntawm qhov kub thiab txias kom tau sintered magnesia (magnesia) ua cov khoom siv tseem ceeb. Ntxiv additives thiab binders ntxiv. Tom qab sib tov, molding thiab ziab, nws raug rho tawm haujlwm lossis fused ntawm qhov kub thiab txias. Feem ntau magnesia bricks muaj xws li sintered magnesia cib thiab fused magnesia cib.
