Cov cib magnesia chromeyog cov khoom siv refractory tseem ceeb rau cov qhov cub kub siab, siv dav hauv cov qhov cub rotary cement, cov qhov cub ua hlau, cov qhov cub metallurgy uas tsis yog ferrous thiab cov qhov cub iav. Lawv qhov kev ua tau zoo ncaj qha txiav txim siab lub neej ua haujlwm ntawm lub qhov cub, kev ua haujlwm zoo thiab kev nyab xeeb ntawm kev tsim khoom. Txhawm rau xaiv cov cib magnesia chrome zoo, koj yuav tsum phim lawv cov khoom nrog cov yam ntxwv ua haujlwm ntawm lub qhov cub - qhov no yog qhov tseem ceeb rau kev txo cov nqi kho thiab ua kom muaj txiaj ntsig zoo tshaj plaws.
Ua ntej, tsom mus rau qhov kub thiab txias ntawm lub cub tawg. Cov cub tawg sib txawv muaj qhov kub thiab txias sib txawv: thaj chaw hlawv cement rotary kiln ncav cuag 1500–1650 ° C, thaum cov cub tawg hluav taws xob steelmaking yuav tshaj 1700 ° C. Cov cib magnesia chrome zoo yuav tsum muaj qhov refractoriness ntawm ntau dua 2000 ° C thiab qhov kub softening ntawm load siab dua 1550 ° C kom tswj tau qhov ruaj khov ntawm cov qauv hauv qab qhov kub siab ntev. Rau cov cub tawg kub ultra-high, xaiv cov cib magnesia chrome rebonded fused nrog kev ruaj khov kub zoo heev.
Qhov thib ob, xav txog qhov chaw ib puag ncig tshuaj lom neeg ntawm lub cub tawg. Cov khoom siv alkaline uas ua los ntawm cov cub tawg (xws li cement clinker) xav tau cov cib uas tiv taus alkali zoo, thaum cov uas tuav cov hlau molten lossis acidic slag xav tau kev tiv taus acid corrosion zoo. Magnesia (MgO) hauv magnesia chrome cib muab kev tiv taus alkali, thaum chromium oxide (Cr₂O₃) txhim kho kev tiv taus acid, ua rau lawv haum rau cov chaw ib puag ncig tshuaj lom neeg nyuaj. Rau cov cub tawg uas muaj slag erosion ntau zaus, xaiv cov cib uas muaj porosity qis (porosity <20%) kom tiv thaiv slag nkag mus.
Qhov thib peb, soj ntsuam qhov kev tiv thaiv thermal shock raws li qhov kub thiab txias hloov pauv. Cov qhov cub uas muaj ntau lub voj voog pib-nres (xws li cov cub tawg uas tsis yog ferrous) xav tau cov cib uas tuaj yeem tiv taus qhov kub hloov pauv sai yam tsis tawg. Cov cib magnesia chrome semi-rebonded muaj kev tiv thaiv thermal shock zoo heev, ua rau lawv zoo tagnrho rau cov xwm txheej zoo li no, thaum cov hom sib txuas ncaj qha sib npaug kev ua tau zoo thiab tus nqi rau cov qhov cub kub ruaj khov.
Tsis tas li ntawd xwb, phim hom cib rau thaj chaw tshwj xeeb ntawm lub cub tawg. Rau cov chaw uas yooj yim hnav xws li lub qhov ncauj ntawm lub cub tawg lossis cov kab slag, xaiv cov cib muaj zog siab nrog lub zog tsoo txias ≥35MPa. Rau cov ntaub thaiv ruaj khov, cov cib magnesia chrome uas pheej yig ua haujlwm tau zoo, thaum cov ntaub thaiv tseem ceeb ua haujlwm xav tau cov hom ncaj qha lossis cov hom rov ua dua tshiab.
Kev xaiv cov cib magnesia chrome zoo tsis yog hais txog qhov zoo ntawm cov khoom siv xwb - nws yog hais txog kev sib phim nrog cov yam ntxwv ntawm lub cub tawg. Peb cov cib magnesia chrome zoo, muaj ntau hom thiab ntau qhov ntau thiab tsawg, tau tsim los ua kom tau raws li ntau yam kev xav tau ntawm lub cub tawg, ua kom lub neej ua haujlwm ntev thiab kev ua haujlwm ruaj khov. Tiv tauj peb hnub no kom tau txais kev daws teeb meem tshwj xeeb rau koj lub cub tawg.
Lub sijhawm tshaj tawm: Plaub Hlis-08-2026
