Low-carbon magnesia carbon brick containing nanometer zinc oxide
A technology of nano-zinc oxide and carbon-magnesia-carbon bricks, which is applied in the field of refractory materials, can solve problems such as poor density and oxidation resistance, lower high-temperature performance of magnesia-carbon bricks, and difficulty in dispersion, so as to improve room temperature and high temperature performance and improve ceramic bonding. degree, the effect of increasing the diffusion rate
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Embodiment 1
[0021] Get by weight percentage: fused magnesia 90.5wt% (wherein the particle of ≤ 6mm is 70wt%, the fine powder 30wt% of ≤ 0.074mm), flake graphite 5wt%, metal Al 3wt%, nanometer zinc oxide 1.5wt% mixes; Then add 4wt% thermosetting phenolic resin which is the sum of the weight percentages of the above four raw materials for kneading, use a press to form, the forming pressure is 250MPa, and the mixture is cured at 180°C for 24h.
Embodiment 2
[0024] Get by weight percent: fused magnesia 91wt% (wherein the particle of ≤ 6mm is 68wt%, the fine powder 32wt% of ≤ 0.074mm), flake graphite 3wt%, metal Al 2wt%, nano-zinc oxide 4wt% mixes, then Add 3.5wt% thermosetting phenolic resin which is the sum of the weight percentages of the above four raw materials for kneading, use a press to form, the forming pressure is 250MPa, and cure at 180°C for 24h.
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