Silicon carbide anti-skinning castable and preparation method thereof
A castable and anti-skin technology, applied in the field of refractory materials, can solve the problems of large explosion-proof fiber gaps, easy erosion of castables, infiltration of external substances, etc., so as to reduce labor intensity, avoid surface skinning, and reduce friction. Effect
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[0037] Example 1
[0038] Silicon carbide anti-skinning castable, the castable is prepared from the following parts by weight of raw materials: 20 parts of charred gem brick waste, 18 parts of corundum brick waste, 16 parts of alumina-magnesia spinel brick waste, 7 parts of silicon carbide powder, micro 6 parts of silica fume, 8 parts of alumina powder, 9 parts of calcium aluminate cement, 6 parts of silicon nitride powder, 0.1 part of explosion-proof fiber, 1 part of high temperature binder, 0.5 part of water reducing agent, 6 parts of water;
[0039] The high temperature adhesive is prepared by the following steps:
[0040] Step S1. Add dimethyl silicone resin and silicone resin to a reactor with a stirrer, and heat to 50-55°C at the same time, set the stirring speed to 1000-1200r / min, and then add the emulsifier while stirring , After stirring for 15 minutes, set the speed to 1500-2000r / min, and add distilled water to the reaction kettle, and continue stirring for 10 minutes to o...
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[0060] Example 2
[0061] Silicon carbide anti-skinning castable, the castable is prepared from the following parts by weight of raw materials: 22 parts of burnt gem brick waste, 20 parts of corundum brick waste, 18 parts of alumina-magnesia spinel brick waste, 9 parts of silicon carbide powder, micro 8 parts of silica fume, 10 parts of alumina powder, 10 parts of calcium aluminate cement, 7 parts of silicon nitride powder, 0.15 parts of explosion-proof fiber, 1.5 parts of high temperature binder, 0.5 parts of water reducing agent, 7 parts of water;
Example Embodiment
[0062] Example 3
[0063] Silicon carbide anti-skinning castable, the castable is prepared from the following parts by weight of raw materials: 23 parts of burnt gem brick waste, 21 parts of corundum brick waste, 19 parts of alumina-magnesia spinel brick waste, 10 parts of silicon carbide powder, micro 9 parts of silica fume, 12 parts of alumina powder, 10.5 parts of calcium aluminate cement, 7.5 parts of silicon nitride powder, 0.2 parts of explosion-proof fiber, 1.5 parts of high temperature binder, 0.55 parts of water reducing agent, 8 parts of water;
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