Kab lus no yog ua raws li tsab xov xwm kawg hais txog kev xaiv kawg ntawm Magnesia carbon cib raw khoom.
4. Cov tshuaj tiv thaiv mechanism ntawm antioxidant
Muaj peb txoj hauv kev los tiv thaiv oxidation ntawm magnesium carbon cib: Ua ntej, txheej txheej sab nrauv los tiv thaiv oxidant, tsim cov khoom iav los tiv thaiv carbon oxidation ntawm qhov kub thiab txias, tab sis poob nws cov nyhuv ntawm qhov kub thiab txias. Qhov thib ob yog txoj kev ceev, hloov cov particle loj, khi tus neeg sawv cev, thiab txoj kev ua kom lub siab molding. Qhov thib peb yog ntxiv ib qho me me ntawm cov hlau los yog cov khoom siv tsis yog-metallic additives uas yog oxidized ntau dua li oxidation los inhibit oxidation ntawm carbon. Xws li: txhuas, silicon, magnesium, calcium, thiab lwm yam, los yog binary los yog ternary alloys xws li aluminium magnesium, silicon, magnesium calcium, aluminium magnesium calcium es tsis txhob hlau, nrog rau cov tebchaw xws li silicon carbide, boron carbide, calcium boron. , thiab titanium dioxide. Nws ua lub luag haujlwm tiv thaiv carbon oxidation. Cov tshuaj antioxidant ua rau cov pores me me ntawm qhov kub thiab txias, txo qhov ua pa ntawm magnesium carbon bricks, yog li tiv thaiv kev nkag ntawm oxygen. Thaum kub kub, qhov kub thiab txias zog ntawm cov cib tuaj yeem txhim kho. Hlau aluminium thiab silicon hmoov tsim ntau yam khoom siv tshuaj tiv thaiv ntawm 1000 degrees thiab 1400 degrees. Tom qab sau nrog cov pa roj carbon oxidation, lub plab seem tau sau, yog li txhim kho qhov kub thiab txias thiab txhim kho kev ua haujlwm antioxidant. Qhov kub siab siv ntawm lub cib lub cev ntawm cov hlau txhuas ntawm 1120K yog qis dua qhov kub siab zog ntawm qhov sib ntxiv ntawm cov hlau silicon thiab txhuas, thaum lub 1568K yog qhov sib txawv, tab sis nws cov dej tsis kam yog txo qis thaum silicon nce.
Ntxiv silicon carbide tuaj yeem txhim kho nws cov kev ua haujlwm antioxidant, tab sis yog tias qhov sib ntxiv loj dhau, nws txo nws txoj kev tiv thaiv corrosion. Nws yog pom tseeb dua ntawm qhov kub thiab txias. Ntxiv titanium dioxide yog raws li qhov nce hauv cov dej hlau kom nce cov viscosity ntawm cov hlau, yog li ua rau corrosion kuj, tab sis nws tsis pom tseeb nyob rau hauv lub turntable.
Ntxiv cov hmoov hlau calcium tuaj yeem txhim kho kev ua haujlwm antioxidant ntawm magnesium carbon bricks nyob rau hauv qhov kub thiab txias cheeb tsam. Cov hlau magnesium reactive hlau magnesium tuaj yeem oxidized thiab generated. Qhov seem nthuav dav yog qhov tsawg, uas txhim kho qhov ntim ruaj khov, yog li siv cov chaw nres nkoj steel thiab cov kab slag zoo.
