The loosening effect caused by the expansion of iron oxides when they react to form spinel can also be made into magnesia-chrome bricks using synthetic co-sintering materials. In addition, there are unfired magnesia-chrome bricks, for example, unfired magnesia-chrome bricks bonded with inorganic magnesium salt solutions. Unfired magnesia-chrome bricks have simple production processes, low costs, and good thermal stability, but their high-temperature strength is far inferior to that of fired bricks. In the late 1950s, a so-called "direct bonded" magnesia-chrome brick was developed.
1. High refractoriness: It has extremely high refractoriness temperature and is suitable for various high temperature working environments.
2. High strength at high temperature: Maintains excellent strength at high temperatures to ensure long service life.
3. Strong resistance to alkaline slag corrosion: It can effectively resist the corrosion of alkaline slag and extend the service life of the equipment.
4. Excellent thermal stability: It has excellent thermal stability and can adapt to drastic temperature changes.
1. Iron and steel smelting industry: used for high-temperature furnace linings and other refractory materials.
2. Nonferrous metal smelting: adapt to the complex and changing smelting environment requirements.
