The different graphite content directly affects the performance of magnesia carbon bricks

Source: | Author:ChangXing Refractory | Published time: 282 days ago | 710 Views | Share:

Graphite content has a direct impact on the performance of magnesia carbon bricks. Magnesia carbon bricks are a high-performance refractory material with magnesia sand as aggregate, graphite as matrix, and reinforced by carbon fiber or silicon carbide fiber. The following will introduce in detail the impact of graphite content on the performance of magnesia carbon bricks.

1.Erosion resistance:

Graphite has good erosion resistance, so when the graphite content in MgO-C bricks is high, its erosion resistance is also good. This means that in high temperature environments, MgO-C bricks with high graphite content can better resist the erosion of slag, molten iron and molten metal, thereby extending the service life of MgO-C bricks.

2.Thermal conductivity:

Graphite is a good thermal conductor, so when the graphite content in MgO-C bricks increases, its thermal conductivity will also increase accordingly. This means that during heating and cooling, MgO-C bricks with high graphite content can transfer heat faster, thereby increasing the heating and cooling speed of MgO-C bricks.

3.Volume stability:

Since graphite has good volume stability, when the graphite content in MgO-C bricks is high, its volume stability is also good. This means that during high temperature and use, MgO-C bricks with high graphite content can maintain good volume stability, thereby reducing damage and cracking of MgO-C bricks.

4.Thermal shock resistance:

Graphite has good thermal shock resistance, and when the graphite content in MgO-C bricks is high, its thermal shock resistance is also good. This means that when experiencing temperature fluctuations, MgO-C bricks with high graphite content can better resist thermal shock, thus avoiding the cracking and damage of MgO-C bricks.

In short, the graphite content has a significant impact on the performance of MgO-C bricks. In order to improve the performance of MgO-C bricks, it is necessary to control the graphite content and optimize the formula of MgO-C bricks during the production process.