Dispersion material for bottom blowing composite air brick of steel ladle and preparation method of dispersion material
A technology of air-permeable bricks and ladles, which is applied in the field of refractory materials for ladle bottom-blown composite air-permeable bricks, which can solve the problems of low strength, poor anti-scouring performance, and many bubbles of air-permeable bricks, and achieve high purity, excellent high-temperature strength, and improved service life. Effect
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Embodiment 1
[0030] The dispersion material for the ladle bottom-blown composite air permeable brick of the present invention is represented by weight percent, consisting of 82% of corundum balls with a particle size of 0.5-1mm, 10% of calcined alumina micropowder, 3% of chromium oxide green powder and 200 mesh fused magnesium aluminum 5% spinel; in addition, adding liquid aluminum dihydrogen phosphate as a binder accounting for 3.2% of the total weight of the above raw materials.
Embodiment 2
[0032] The dispersion material for the ladle bottom-blown composite air permeable brick of the present invention is represented by weight percent, consisting of 82% of corundum balls with a particle size of 0.5-0.8mm, 10% of calcined alumina micropowder, 3% of chromium oxide green powder and 200 mesh fused magnesium Aluminum spinel 5% composition; In addition, adding liquid aluminum dihydrogen phosphate as a binder accounting for 3.2% of the total weight of the above raw materials.
Embodiment 3
[0034] The dispersion material for the ladle bottom-blown composite ventilating brick of the present invention is represented by weight percent, consisting of 82% of corundum balls with a particle size of 0.2-0.8mm, 10% of activated alumina micropowder, 3% of chromium oxide green powder and 200 mesh fused magnesia Aluminum spinel 5% composition; In addition, adding liquid aluminum dihydrogen phosphate as a binder accounting for 3.2% of the total weight of the above raw materials.
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