Poor thermal stability of magnesia brick:
Magnesia brick can only take water-2-3. Expanded the most magnesia bricks in refractory, low coefficient of linear expansion. So when the magnesia brick oven, you want to have plenty of expansion joints. Hydration of magnesia brick: magnesia brick prolonged under wet condition can slowly hydrate, magnesia brick strength greatly reduced, so you must pay attention to moisture when stored magnesia brick.
Advantages of fired magnesia chrome bricks:
Chrome ore and magnesite magnesite-chrome brick mill Compact fitted after a total production of fine powder, coarse granule combined with brick and magnesite, are effective measures to eliminate loose effect. In this way made of magnesia-chrome brick, compared with ordinary magnesia-chrome brick, bricks of low porosity and compressive strength, refractoriness and bending strength are higher. With the chrome ore and magnesite powder compact, high temperatures, calcination of magnesite-chrome brick made of synthetic magnesia-chrome sand, slag resistance and high temperature strength than other magnesite-chrome brick good.
