Ten water-bonded large-area repair materials for converter were prepared with fused magnesia as main raw material,adding α-Al2O3 micro powder,titanium dioxide,bonding agent,burning aid,retarding agent and water reducing agent.The effects of the add category and addition amount on the flow value of water-bonded large-area repair material,bonding strength and medium-hot modulus of rupture were studied.The results show that 6# material has the best comprehensive performance,high strength and long service life,and can be sintered rapidly.

"> Water-bonded large-area repair material for converter, α-Al2O3 micro powder,  , Water reducing agent, Rapid sintering, Burning aid