Medium frequency induction furnace will be a variety of problems in the course inevitable, the life lining material is one of the greatest concerns. For the melting department, it is extremely important to analyze the factors affecting the life of the intermediate frequency induction furnace lining. Analysis of Main Factors and Countermeasures 1. Furnace Construction Process The quality of the lining knot directly affects service life. The knotting quality of the lining is related to the sintering quality, and the sintering quality affects the performance. When the lining is knotted, the sand material maintains a uniform particle size, and the coarse and fine particles do not cause segregation. When the material is added, the layer and the layer are tightly combined, and the density of the lining after the knotting is high, and the strength of the sintered layer after sintering is high. The tendency of the furnace wall to crack is relatively small. If the furnace lining is k