Preparation method of ZrN-SiAlON-SiC-C complex-phase fireproof material
A zrn-sialon-sic-c, refractory technology, applied in the field of refractories, can solve the problems of high energy consumption, high cost, high price, etc., and achieve the effect of high performance, low energy consumption and low cost
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Embodiment 1
[0024] Select 200 meshes of bauxite (from Shanxi Yangquan, the main chemical composition is Al 2 o 3 , 62.70%; SiO 2 , 23.13%; Fe 2 o 3 , 7.38%; TiO 2 , 5.76%; others, 3.03%) and 200 mesh zircon (the main chemical composition is ZrO 2 , 69.11%; SiO 2 , 21.17%; HfO 2 , 3.00%; TiO 2 , 2.13%; Al 2 o 3 , 2.06%; others, 2.53%) as raw materials, coke (purchased from China New Times Co., Ltd., carbon content of 83.72wt.%, particle size of 200 mesh) as reducing agent, according to the mass ratio of 7:3:2.42 for mixing The raw materials were mixed by dry ball milling and passed through a 200-mesh sieve, then the powder was put into a corundum crucible and placed in a vacuum atmosphere furnace, and nitrogen gas was introduced at a flow rate of 0.3-0.5L / min, and kept at 1600°C for 4h. Synthesis of ZrN-SiAlON refractory powder by nitriding. Weigh the synthesized ZrN-SiAlON refractory powder, 120-mesh SiC and 325-mesh SiC according to the mass ratio of 2:4:4, pour the ZrN-SiAlON...
Embodiment 2
[0026] Select 200 meshes of bauxite (from Shanxi Yangquan, the main chemical composition is Al2 o 3 , 62.70%; SiO 2 , 23.13%; Fe 2 o 3 , 7.38%; TiO 2 , 5.76%; others, 3.03%) and 200 mesh zircon (the main chemical composition is ZrO 2 , 69.11%; SiO 2 , 21.17%; HfO 2 , 3.00%; TiO 2 , 2.13%; Al 2 o 3 , 2.06%; others, 2.53%) as raw materials, coke (purchased from China New Times Co., Ltd., carbon content of 83.72wt.%, particle size of 200 mesh) as reducing agent, according to the mass ratio of 7:3:2.42 for mixing The raw materials were mixed by dry ball milling and passed through a 200-mesh sieve, then the powder was put into a corundum crucible and placed in a vacuum atmosphere furnace, and nitrogen gas was introduced at a flow rate of 0.3-0.5L / min, and kept at 1600°C for 4h. Nitriding synthesis of ZrN-SiAlON refractory powder. Weigh the synthesized ZrN-SiAlON refractory powder, 120-mesh SiC and 325-mesh SiC according to the mass ratio of 3:3.5:3.5, pour the ZrN-SiAlON ...
Embodiment 3
[0028] Select 200 meshes of bauxite (from Shanxi Yangquan, the main chemical composition is Al 2 o 3 , 62.70%; SiO 2 , 23.13%; Fe 2 o 3 , 7.38%; TiO 2 , 5.76%; others, 3.03%) and 200 mesh zircon (the main chemical composition is ZrO 2 , 69.11%; SiO 2 , 21.17%; HfO 2 , 3.00%; TiO 2 , 2.13%; Al 2 o 3 , 2.06%; others, 2.53%) as raw materials, coke (purchased from China New Times Co., Ltd., carbon content of 83.72wt.%, particle size of 200 mesh) as reducing agent, according to the mass ratio of 7:3:2.42 for mixing The raw materials were mixed by dry ball milling and passed through a 200-mesh sieve, then the powder was put into a corundum crucible and placed in a vacuum atmosphere furnace, and nitrogen gas was introduced at a flow rate of 0.3-0.5L / min, and kept at 1600°C for 4h. Nitriding synthesis of ZrN-SiAlON refractory powder. Weigh the synthesized ZrN-SiAlON refractory powder, 120-mesh SiC and 325-mesh SiC according to the mass ratio of 4:3:3, pour the ZrN-SiAlON an...
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