Recently, the major scientific and technological research project in Henan Province undertaken by the Sinosteel Luoyang Refractory Research Institute has achieved breakthroughs in the development and industrialization of functional refractories for aluminum smelting and refining systems. The first is to establish a perfect cryolite corrosion resistance test device and erosion test method for silicon carbide materials. The test method is used to optimize the composition and microstructure of the material, and to produce a high physical and chemical performance and use performance to meet the requirements of the key indicators. Performance silicon nitride bonded silicon carbide samples. The second is to complete the installation and commissioning of the horizontal graphite resistance furnace used in the synthesis of titanium boride materials, and to preliminarily synthesize a high-purity boride titanium material with a titanium boride content of over 98%. The third is to complete the research on the forming, processing and nitridation sintering processes of silicon nitride bonded silicon carbide heating sleeves and liquid riser materials. Fourth, the composition of air-permeable components and the design of air-permeable structures have been optimized. Breathable component materials with high air permeability and excellent impermeability have been developed, and the performance indicators have met the requirements of key research targets. Henan Science and Technology Department