| abstract |
The invention relates to a medium-frequency induction furnace ramming material based on magnesium-aluminum spinel recycled material, comprising the following components and parts by weight: 60-75 parts of magnesium-aluminum spinel recycled material, 10-20 parts of fused corundum, 5-10 parts of α-Al 2 O 3 micropowder, 3-5 parts of calcium carbonate, 3-5 parts of titanium dioxide, and 1-1.5 parts of boric acid. The ramming material prepared by the invention has the advantages of low cost, energy saving and environmental protection, high refractoriness, high strength and good volume stability. |