Acidic ramming material belongs to quartz refractory, material belongs to acidic lining material, ramming medium frequency induction furnace lining special material, its advantage is the raw material used high-purity quartz sand quartz powder, with high-temperature binder, anti-quench and heat stabilizer, impermeability agent, anti-cracking agent, and imported composite powder material, characteristics: (in) A 0.6 cm glazed sinter layer is formed on the surface of the lining, forming a 2 cm ceramic structure. The density is very high, and then it is semi sintered layer and loose layer, which plays a role of shock absorption. The resistance to hot metal corrosion is enhanced. This kind of composite powder material has strong cold and extreme heat resistance, high flexibility, strong impact resistance, high load softening temperature, high high temperature compressive strength, high temperature flexural strength, good slag resistance and so on. The life of lining is 5-10 times that of ordinary lining material.

Acid ramming materials are acidic in their chemical composition, such as silica bricks and silica sands. It is unstable for acidic slag containing mainly SiO2, but it can not be eroded by alkaline pool containing excessive CaO and MgO. It is made up of fine quartz sand as the main raw material, granules with multi-gradation ratio, dry materials, and stirred evenly

The main material of acid ramming material is quartz sand, quartz sand is a kind of hard, wear-resistant, stable chemical silicate mineral, its main mineral composition is SiO2, the color of quartz sand is milky white or colorless translucent, hardness is 7, brittle and no cleavage, shell-like fracture, oil luster, relative density is 2.65, its chemical, chemical, translucent, hardness is 7. The thermal and mechanical properties are obviously anisotropic, insoluble in acid, slightly soluble in KOH solution, and melting point is 1750 degrees. The color is milky white, light yellow, brown and gray, quartz has a higher fire resistance, divided into: ordinary quartz sand, refined quartz sand, acid-washed quartz sand, high-purity quartz sand, etc.

The acid ramming material is made by scientific and reasonable proportioning, accurate weighing and mixing. It is widely used for continuous operation and intermittent operation of ferrous metal smelting in intermediate frequency electric furnace. Acidic tamping material is premixed dry ramming mixture. Users can put it into use directly. The product is suitable for smelting temperature of 1850 C. Acidic ramming material is used for dry vibration or dry ramming in furnace construction. It is also used for smelting gray iron, pig iron, nodular cast iron and other cast iron lining in electric furnace. The lining life of smelting plain carbon steel, high carbon steel and high chromium steel can be applied to 195 heats.