The refractory joint gunning material refers to a joint material used as the masonry for refractory products. According to the material, it can be divided into clay, high-aluminum, silica and magnesia refractory mud.

Using the fused magnesia and magnesia-calcium sand as the main raw materials of self-flowing gunning mix for large surface, and the composite carbon and ceramic combination method is used for the heat repair of the converter bottom, large and small surface, slag line and other parts.

The usual maintenance of the metal mixer is mainly spray cleaning. The working nature of the mixed iron furnace determines the harshness of spray cleaning environment.

The electric furnace gunning material is made of high quality burnt magnesia and other alkaline composite materials with reasonable particle size distribution.