Acidic (Silica) Ramming Mass Introduction: The role of Acidic Ramming Mass in steel melting through induction Furnace is very important. Due to its important property to with stand thermal shocks without developing any cracks due to interrupted power supply which is the case throughout our country We have taken initiative to develop acidic ramming mass of high quality silica Quartz having heavy density. Product: Our ramming mass is a product of super snow white crystalline quartz having 99.90% Silicon dioxide (SiO2 ) and manufactured under strict quality control and calcined to eliminate the spal1ing tendency in stabilized form, where silica neither expands nor contracts It is suitable for with standing higher temperature up to 1720? Specifications: Sio2 - 99.90% Al2O3 - 0.02% Free from Iron contents Softening Point - 1280 C Porosity : 50 Compression St : 350 Kg CM2 Bulk Density : 2.00 to 2.2 TonM3 PCE Value ASTM No : 31-32 Important Features: 1. For the first new lining the requirement of Acidic Ramming Mass is almost 50% of the Furnace capacity in weight. 2. Remove iron or steel contents by powerful magnet. 3. It is required to be preheated to 70?-80? C. So as to eliminate moisture during summer months In winter season or rainy season. the mass should be preheated at a temperature of 140? - 150? C. then after cooling it down to 50? - 60?C mix thoroughly 0.8 to 1.5 percent boric acid according to the size of the crucible. 4. Usually 12% of boric acid of medical grade is used for furnaces up to 3 tons Capacity 5. Store the Ramming mass in dry and dust free area. Acidic Ramming Mass Has got three Categories as under: 1.Grade M1 Suitable up to 1.5 Ton furnace capacity. 2. Grade M2 Suitable for 2 to 3 Ton furnace capacity. 3. Grade M3 Suitable For 5 Ton furnace capacity. Application : Our Acidic Ramming Mass is used by mixing boric acid 0.8% To 1.5% according to the type of metal Low for Steel and high for cast iron melting.