▎ 摘　　要

NOVELTY - Preparation of bauxite-silicon carbide composite sagger involves mixing and wet-milling alumina, silicon carbide powder, pyrophyllite, spodumene, talc, fused magnesite, aluminum phosphate, zirconium silicate, silicon nitride and graphene, molding allowing to standstill for 2 hours, stripping and obtaining sagger component, pre-burning blank, water-quenching, immersing green component immediately in water and then oil, drying, baking, post-processing the sintered composite, and side-cutting. USE - Preparation of bauxite-silicon carbide composite sagger (claimed). ADVANTAGE - The method efficiently and economically provides bauxite-silicon carbide composite sagger having high thermal stability, and excellent pressure resistance, corrosion stability and crack resistance. DETAILED DESCRIPTION - Preparation of bauxite-silicon carbide composite sagger involves mixing and wet-milling 91-140 pts. wt. alumina, 22-35 pts. wt. silicon carbide powder, 8-10 pts. wt. pyrophyllite, 8-10 pts. wt. spodumene, 8-10 pts. wt. talc, 8-10 pts. wt. fused magnesite, 1-3 pts. wt. aluminum phosphate, 1-3 pts. wt. zirconium silicate, 1-3 pts. wt. silicon nitride and 1-3 pts. wt. graphene to size of more than 100 mesh sieve, molding under pressure of 50 MPa, allowing to standstill for 2 hours, stripping and obtaining sagger component, pre-burning blank at 500-800 degrees C, water-quenching, immersing green component immediately in water for 20-35 seconds, then immersing in oil at 50-75 degrees C for 20-35 seconds, drying treated component naturally for 10-22 hours, baking in furnace at 1100-1350 degrees C for 10-15 hours, post-processing the sintered composite, and side-cutting a number of expansion joints.