- Time:May 29, 2023
Magnesia carbon bricks are refractory bricks made from a mixture of magnesite and graphite, along with various additives. The exact composition can vary depending on the specific application, but a typical composition of magnesia carbon bricks may include:
1.Magnesia: Magnesite is the primary component of magnesia carbon bricks and typically makes up around 60-80% of the brick's weight. It provides high-temperature resistance and chemical stability.
2.Graphite: Graphite is added to magnesia carbon bricks to improve their thermal conductivity and reduce oxidation. It typically makes up around 10-20% of the brick's weight.
3.Binders: Various binders can be used to hold the magnesia and graphite together in a solid form. Common binders include phenolic resin, pitch, and sodium silicate.
4.Additives: Other additives may be added to magnesia carbon bricks to enhance their properties, such as antioxidants, anti-spalling agents, and metal powders.
The exact composition of magnesia carbon bricks can be varied to suit different applications and operating conditions. For example, higher levels of graphite can be used for better thermal conductivity, while the addition of zirconia can improve corrosion resistance. The manufacturing process also plays a critical role in determining the final properties of the magnesia carbon brick.
