FIELD: refractory products.
SUBSTANCE: manufacturing of refractory products using raw materials in the form of magnesite-chromite grains. The grains for making a sintered refractory product contain a fused magnesite-chromite core, the surface of the said magnesite-chromite core having at least a partial coating containing chromium oxide with a thickness of at least 10 mcm. The refractory sintered product contains 30-80 wt.% of MgO and 4-36 wt.% of Cr2O3, and it contains magnesite-chromite grains and at least some of these grains are surrounded by a shell containing picrochromite.
EFFECT: increased corrosion resistance, decreased elastic modulus of refractory products, which improves their resistance to thermal shock.
11 cl, 1 dwg, 5 ex
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