What is magnesia carbon bricks?

Magnesia carbon bricks are a type of refractory brick that is made from a mixture of high-purity magnesium oxide (MgO) and carbon. The carbon content can range from 5% to 30%, depending on the specific application requirements.

The production of magnesia carbon bricks involves mixing pre-calcined or fused magnesia with flake graphite, pitch, or resin to form a paste-like material. This material is then shaped into the desired brick form and fired at high temperatures to create a dense and durable finished product.

Magnesia carbon bricks are known for their excellent resistance to high temperatures, corrosion, and thermal shock, as well as their good mechanical strength and abrasion resistance. They are widely used in various high-temperature applications, such as steelmaking, non-ferrous metal smelting, cement kilns, and incinerators.

The addition of carbon to magnesia bricks enhances their thermal conductivity, improves their resistance to oxidation, and reduces their tendency to crack under thermal stress. However, excessive carbon content can also reduce the overall mechanical strength of the bricks, so the amount of carbon is carefully controlled during production to ensure optimal performance for the intended application.

The main advantages of magnesia carbon bricks include:

1.Good refractory performance: Magnesia carbon bricks can maintain stable performance at high temperatures up to 2000 °C.

2.Good corrosion resistance: Magnesia carbon bricks have good acid and alkali resistance and corrosion resistance.

3.Low thermal expansion coefficient: Magnesia carbon bricks have a low thermal expansion coefficient, which can effectively reduce cracking and damage caused by thermal stress.

4.Good electrical and thermal conductivity: Magnesia carbon bricks have good electrical and thermal conductivity, and are suitable for applications that require resistance heating or rapid heat dissipation.

Excellent wear resistance: Magnesia carbon bricks have good wear resistance and are suitable for high-temperature working environments that require frequent contact and friction.