Magnesia is a barren material, and the moisture content of the billet is low. Generally, there will be no overpressure waste products caused by compressed air. Therefore, high-pressure molding can be used. With the increase of molding pressure, the strength, density and The softening point under load is improved. The design of the mold for forming magnesia bricks should take into account the scale rate of the bricks. The scale rate of ordinary magnesia bricks: 1.5%~2.5% for the pressure surface of the code brick, and 0.5%~1.5% for the non-pressure surface of the code brick.
