Magnesia chrome brick production process magnesia carbon brick for ladle
The loosening effect caused by the expansion of the gunning material oxides of the ladle magnesia-carbon brick iron to produce spinel is converted to magnesia-carbon bricks, and synthetic co-sintered materials can also be used to make magnesia-chrome bricks. Thermal storage bricks, in addition, there are unburned magnesia chrome bricks, for example, unburned magnesia chrome bricks combined with an inorganic magnesium salt solution. The production process of unfired magnesia chrome bricks is simple, low cost, and good thermal stability, but the high temperature strength is far less than that of fired bricks. At the end of the 1950s, a so-called "direct bonding" magnesia-chrome brick was developed. The characteristics of this kind of brick are that the raw materials are pure, the firing temperature is high, the high temperature phases such as periclase and spinel are directly combined, and the low melting phases such as silicate are distributed in islands. Therefore, the high temperature of the brick is significantly increased. Strength and slag resistance. The production process of fired magnesia chrome bricks is roughly the same as that of magnesia bricks. Aluminum Magnesium Carbon Brick
Ladle magnesia carbon brick
In order to eliminate the fine powder produced by the chromium ore-magnesia co-grinding green compacts for MgO, Cr2O3 and Al2O3 during the sintering process of the bricks, the method of making bricks with coarse particles of magnesia is an effective measure to eliminate the loose effect. Compared with ordinary magnesia-chrome bricks, the magnesia-chrome bricks made by this method have lower porosity, higher compressive strength, load softening temperature and flexural strength. Magnesia-chrome bricks made of chrome ore-magnesite powder compacts and high-temperature calcined synthetic magnesia-chrome sand have better slag resistance and high-temperature strength than other magnesia-chrome bricks.
