Description of magnesia ramming mass
Magnesia ramming mass is a highly purified powder material. Magnesia ramming mass is specially formulated using highly purified magnesium oxide (MgO) as the main component. The addition of other additives and binders helps improve its properties and performance. The ramming mass is usually preheated and then compacted in the furnace lining, where it forms a protective layer. It has many unique properties, which makes it widely used in many industries.
Characteristics of magnesia ramming mass
| Name of indicators | ММН |
|---|---|
| Mass fraction of calcined substance, % | |
| - MgO, не менее | 90 |
| - Р2О5 | 1,5-3,0 |
| Mass fraction of moisture, %, not more than | 1,0 |
| Fire resistance, °С, not lower | 1730 |
| Grain composition, %: | |
| - residue on grid No. 5, not more than | 5,0 |
| - passage through mesh No. 0063, not less than | 35-50 |
Преимущества магнезиальной набивной массы
Good resistance to high temperatures
Magnesia Ramming Mass has good high temperature resistance. It can maintain stable chemical and physical properties at high temperatures, and does not melt or deform easily.
Resistance to chemical corrosion
Magnesia Ramming Mass has good corrosion resistance. It is resistant to many chemicals, including acids, alkalis and salts.
Good thermal conductivity
Magnesia Ramming Mass has high thermal conductivity, which allows for efficient heat transfer and improves the thermal efficiency of equipment.
Good resistance to thermal shock
Magnesia Ramming Mass is able to withstand sudden temperature changes without cracking or chipping.
Plasticity and formability
Magnesia Ramming Mass is easy to plasticize and mold, and can be prepared and installed according to specific application requirements. It can be molded into various shapes and sizes by pressing, extrusion and injection molding, making it an ideal material for processing.
Application of magnesite ramming mass
Steel pouring ladles
Steel pouring ladles are used to transfer molten steel from the furnace into the pouring moulds. Magnesia Ramming Mass can be used to line these ladles, protecting them from the high temperature and chemical attack of the molten steel.
Electric arc furnaces
Electric arc furnaces are another type of steelmaking furnace that uses magnesia ramming paste. It creates a strong, heat-resistant lining that can withstand the intense heat and chemical reactions that occur in an electric arc furnace during steelmaking.
Induction ovens
Magnesia Ramming Mass is widely used as a lining material in induction furnaces. It forms a protective layer on the bottom lining of the furnace, providing excellent resistance to the high temperatures and corrosive environments encountered during steel smelting and refining.
Other areas of application
Magnesia ramming paste may also find application in other high temperature environments where it is necessary to reduce the corrosive effects of molten metals or slag. This may include applications in non-ferrous metal production such as aluminum or copper smelting.
Steel ladle
Magnesia Ramming Mass is also used to line ladles, which are containers used to transport molten metal from the furnace to the pouring area. The ramming mass acts as a protective lining, preventing the molten metal from reacting with the ladle material and maintaining its temperature.
Lining of the intermediate ladle
Tundishes are intermediate vessels used in continuous casting processes to control the flow and distribution of molten metal. Magnesia ramming compound can be used to line the tundish, providing insulation and corrosion resistance to the molten metal.
