Unfired magnesia-calcium-carbon brick and preparation method thereof
A non-burning magnesia-calcium-carbon brick and magnesia-calcium sand technology, applied in the field of refractory materials, can solve problems such as deformation, brick body falling off, brick body cracking, etc., and achieve high service life, strong corrosion resistance, and good high temperature stability. Effect
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Embodiment 1
[0034] Unfired magnesia-calcium carbon bricks, including the following raw materials: 10kg of magnesia-calcium sand with a particle size of 4-7mm, 30kg of magnesia-calcium sand with a particle size of 1-4mm, and 20kg of magnesia-calcium sand with a particle size of <1mm. 10kg of fused magnesia with a particle size of 0.5-5mm and 10kg of fused magnesia with a particle size of <0.5mm, 5kg of flake graphite with a particle size of 0.06-0.08mm, 8kg of zirconia micropowder with a particle size of 0.03-0.05mm, and a particle size of 8kg of silicon carbide powder of 0.005-0.01mm, 5kg of phenolic resin with a viscosity of 8000mPa s and 5kg of modified asphalt with a viscosity of 40000mPa s;
[0035] The preparation method of the above-mentioned unfired magnesia-calcium-carbon brick specifically comprises the following steps:
[0036] (1) take each raw material by the weight of above-mentioned unfired magnesia-calcium-carbon brick;
[0037] (2) Dry-mix magnesia-calcium sand, fused mag...
Embodiment 2
[0041] Unfired magnesia-calcium carbon bricks, including the following raw materials: 15kg of magnesia-calcium sand with a particle size of 4-7mm, 40kg of magnesia-calcium sand with a particle size of 1-4mm, and 25kg of magnesia-calcium sand with a particle size of <1mm. 15kg of fused magnesia with a particle size of 0.5-5mm and 15kg of fused magnesia with a particle size of <0.5mm, 8kg of flake graphite with a particle size of 0.06-0.08mm, 5kg of zirconia micropowder with a particle size of 0.03-0.05mm, and a particle size of 5kg of silicon carbide powder of 0.005-0.01mm, 3kg of phenolic resin with a viscosity of 9000mPa s and 3kg of modified asphalt with a viscosity of 45000mPa s;
[0042] The preparation method of the above-mentioned unfired magnesia-calcium-carbon brick specifically comprises the following steps:
[0043] (1) take each raw material by the weight of above-mentioned unfired magnesia-calcium-carbon brick;
[0044] (2) Dry-mix magnesia-calcium sand, fused mag...
Embodiment 3
[0048]Unfired magnesia-calcium carbon bricks, including the following raw materials: 20kg of magnesia-calcium sand with a particle size of 4-7mm, 50kg of magnesia-calcium sand with a particle size of 1-4mm, and 30kg of magnesia-calcium sand with a particle size of <1mm. 20kg of fused magnesia with a particle size of 0.5-5mm, 20kg of fused magnesia with a particle size of <0.5mm, 10kg of flake graphite with a particle size of 0.06-0.08mm, 3kg of zirconia powder with a particle size of 0.03-0.05mm, and 3kg of silicon carbide powder of 0.005-0.01mm, 2kg of phenolic resin with a viscosity of 10000mPa s and 2kg of modified asphalt with a viscosity of 50000mPa s;
[0049] The preparation method of the above-mentioned unfired magnesia-calcium-carbon brick specifically comprises the following steps:
[0050] (1) take each raw material by the weight of above-mentioned unfired magnesia-calcium-carbon brick;
[0051] (2) Dry-mix magnesia-calcium sand, fused magnesia, zirconia micropowde...
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