Unshaped refractory material and preparation method thereof
A technology of refractory materials and granules, which is applied in the field of refractory materials, can solve problems such as difficult adjustment, poor mud beating work, and easy hardening of gun mud.
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[0012] The present invention mainly discloses a monolithic refractory material and its preparation method. Unless otherwise specified, the basic materials and preparation methods used therein should be well known to those skilled in the relevant technical field. The composition of the shaped refractory is fully described, and the description is given first.
[0013] The invention provides an unshaped refractory material, which comprises the following components: magnesia particles account for 5% to 30% by weight, lightly burned magnesium powder accounts for 5% to 15% by weight, corundum accounts for 20% to 45% by weight, carbonization Silicon accounts for 10% to 20% by weight, coke accounts for 10% to 18% by weight, clay accounts for 6% to 12% by weight, ferrosilicon nitride accounts for 2% to 8% by weight, and benzo(a)pyrene is low The graphitizable coal tar pitch at 500mg / kg accounts for 3%-10% by weight, and the aromatic hydrocarbon solvent with benzo(a)pyrene less than 500...
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