Cov kev paub ntawm kev siv magnesia-carbon bricks ntawm Magnesia Cib Manufacturers nyob rau hauv converters, hluav taws xob furnaces thiab ladle qhia tau hais tias vim hais tias ntawm nws zoo heev kub tsis kam, slag corrosion kuj thiab zoo thermal shock stability, nws yog heev haum rau cov kev cai ntawm hlau thiab hlau smelting. . Ua kom zoo dua cov khoom ntawm cov ntaub ntawv carbon uas nyuaj rau wetted los ntawm slag thiab molten steel, siab refractory zog ntawm magnesia, siab slag kuj thiab solubility tsis kam, thiab me me creep ntawm kub siab, magnesia-carbon bricks yog siv nyob rau hauv slag kab thiab outflows nrog hnyav corrosion puas. Steel lub qhov ncauj thiab lwm qhov chaw. Txog tam sim no, cov txiaj ntsig kev lag luam loj tau tsim los ntawm kev siv ntau ntawm magnesia-carbon cib hauv cov txheej txheem steelmaking thiab txhim kho cov txheej txheem hlau thiab hlau smelting. Tam sim no, magnesia-carbon bricks ntawm Magnesia Cib Manufacturers qhia qhov tsis zoo ntawm cov nqi siab graphite noj, nce tshav kub noj, thiab tsis tu ncua ntawm carbon rau hauv molten steel, yog li polluting hlau molten. Txhawm rau txo cov nqi ntawm cov khoom siv raw thiab cov hlau ntshiab molten, cov pa roj carbon tsawg-magnesia-carbon bricks Tsawg carbonization tuaj yeem daws cov teeb meem no zoo heev.
Cov yam ntxwv ntawm magnesia carbon cib ntawm Magnesia Cib Manufacturers yog feem ntau xav txog hauv qab no:
1. Microstructure ntom ntawm magnesia carbon cib
Lub compactness ntawm magnesia-carbon cib ntawm Magnesia Brick Manufacturers nyob ntawm seb hom thiab npaum li cas ntawm binder thiab antioxidant, hom magnesia, particle loj thiab npaum li cas ntawm graphite, thiab lwm yam. Tsis tas li ntawd, cov khoom siv molding, cib nias tshuab thiab kev kho cua sov. cov xwm txheej muaj qee yam cuam tshuam. Txhawm rau kom ua tiav qhov pom meej porosity hauv qab 3.0 feem pua, xyuas kom meej tias cov molding siab yog 2t / cm2, thiab ntxiv dag zog rau qhov ntom ntom ntawm cov matrix ib feem los txhim kho nws cov corrosion kuj, magnesia-carbon cib ntawm Magnesia Cib Manufacturers nrog rau qhov me me ntawm tsawg dua 1 hli yog siv rau hauv cov cua qhov muag cib thiab tapping cib. Cov binders sib txawv kuj muaj qee yam cuam tshuam rau lub compactness ntawm magnesia-carbon bricks. Lub binder nrog siab carbon residue tus nqi yog xaiv rau nws ntau dua density. Cov nyhuv ntawm kev ntxiv cov tshuaj tiv thaiv kab mob sib txawv ntawm qhov compactness ntawm magnesia-carbon bricks ntawm Magnesia Cib Manufacturers yog pom tseeb txawv. Hauv qab 800 degrees, qhov pom meej porosity nce nrog oxidation ntawm antioxidants, thiab thaum nws siab tshaj 800 degrees, cov hlau-dawb magnesia-carbon bricks qhia pores. Lub porosity tsis hloov, tab sis pom meej porosity ntawm cov hlau uas muaj cib txo qis, thiab nws tsuas yog ib nrab ntawm 800 degrees ntawm 1450 degrees. Ntawm lawv, magnesia-carbon bricks nrog hlau aluminium ntxiv muaj qhov qis tshaj pom porosity.
Cov cua kub ceev ntawm magnesia-carbon bricks ntawm Magnesia Cib Manufacturers thaum siv kuj yuav cuam tshuam qhov kev hloov ntawm lawv cov porosity pom. Yog li ntawd, thaum siv magnesia-carbon cib thawj zaug, sim ua kom sov ntawm qhov qis qis kom ua rau cov ntaub ntawv decompose tag nrho ntawm qhov kub thiab txias. Thaum siv magnesia-carbon bricks ntawm Magnesia Cib Manufacturers Cov nyhuv ntawm qhov kub thiab txias ntawm porosity kuj pom tseeb. Qhov loj dua qhov kub sib txawv, qhov porosity nce sai dua.
2. Kev kub siab ua haujlwm ntawm magnesia carbon cib
2.1 High-temperature mechanical zog Cov khoom sib txawv muaj qhov sib txawv ntawm kev txhim kho qhov kub-kub lub zog ntawm magnesia-carbon cib. Cov kev tshawb fawb tau pom tias rau qhov kub thiab txias flexural zog siab tshaj 1200 degree, tsis muaj additives < calcium boride < aluminium < aluminium magnesium < aluminium plus boride Calcium < aluminium magnesium plus calcium boride, qhov twg aluminium magnesium ntxiv rau boron carbide yog ntawm aluminium magnesium thiab aluminium magnesium ntxiv. calcium boride.
2.2 Thermal expansion kev ua tau zoo Kev koom tes nthuav tus nqi ntawm magnesia-carbon cib ntawm Magnesia Cib Manufacturers tsis muaj hlau ntxiv yog qis dua li ntawm cov hlau ntxiv, thiab cov kev koom tes nthuav dav ntxiv nrog qhov nce ntawm cov hlau ntxiv.
2.3 Thermal expansion thiab high-temperature flexural zog ntawm magnesia-carbon bricks ntawm Magnesia Cib Manufacturers nyob rau hauv txawv kev qhia ntawm anisotropy yog txawv, feem ntau yog vim lub orientation ntawm flake graphite. Txiav txim siab cov ntsiab cai thiab cov txheej txheem ntawm kev ua hauj lwm hauv ob sab phlu cib. Magnesia-carbon cib ntawm Magnesia Cib Manufacturers nyob rau hauv ntsug kev taw qhia muaj siab kub zog thiab qis thermal expansion.
