Refractory Bricks

High alumina brick is a kind of refractory material. The main component of this refractory brick is Al2O3. If the Al2O3 content is higher than 90%, it is called corundum brick. Due to different resources, national standards are not completely consistent. For example, European countries stipulate that the lower limit of Al2O3 content for high-aluminum refractory materials is 42%. In China, high alumina bricks are usually divided into three grades according to their Al2O3 content: Grade I - Al2O3 content >75%; Grade II - Al2O3 content 60-75%; Grade III - Al2O3 content 48-60%.

Magnesite spinel bricks are refractory bricks made from a combination of magnesite (MgO) and spinel (MgAl2O4) minerals. These bricks are used in high-temperature applications where excellent thermal and chemical resistance is required, such as in the lining of steelmaking furnaces, cement kilns, and other industrial furnaces.

Magnesite spinel bricks are refractory bricks made from a combination of magnesite (MgO) and spinel (MgAl2O4) minerals. These bricks are used in high-temperature applications where excellent thermal and chemical resistance is required, such as in the lining of steelmaking furnaces, cement kilns, and other industrial furnaces.

Fused cast Alumina Brick is formed by the compact structure of α alumina and β alumina crystals in a most ideal proportion which is approximately 50% and 50% respectively,where intertwined crystals of both materials result in a very dense structure.This kind of product has dense structure and no contamination to glass. It is the ideal refractory materials for channels, spouts and working ends of floating glass furnace.

Fused bricks refer to white solids formed by melting pure alumina powder (Al2O3), 65% zirconium oxide (ZrO2) and about 34% zircon sand in an electric furnace and then injecting it into a mold for cooling. Its petrographic structure is composed of the eutectoid of corundum and zirconite and the glass phase. From a facies point of view, it is the eutectoid of corundum phase and zirconite phase, and the glass phase fills between their crystals.

Sillimanite is a natural high-grade refractory mineral with the characteristics of low thermal expansion, resistance to corrosion by metallurgical slag and various glass liquids, and good high-temperature wear resistance. Its physical and chemical properties are better than those of high-alumina bricks, with a refractoriness of 1770-1830℃ and a load softening starting point of 1500-1650℃. It is mainly used for the forming of flow holes in glass tank kilns, blast furnace linings, furnace throats, and ceramic industrial kiln furniture. Refractory materials based on natural sillimanite also have these advantages. Therefore, sillimanite refractory materials are widely used in metallurgy, chemical industry, building materials and other industries.

Magnesite spinel bricks are refractory bricks made from a combination of magnesite (MgO) and spinel (MgAl2O4) minerals. These bricks are used in high-temperature applications where excellent thermal and chemical resistance is required, such as in the lining of steelmaking furnaces, cement kilns, and other industrial furnaces.

Magnesite spinel bricks are refractory bricks made from a combination of magnesite (MgO) and spinel (MgAl2O4) minerals. These bricks are used in high-temperature applications where excellent thermal and chemical resistance is required, such as in the lining of steelmaking furnaces, cement kilns, and other industrial furnaces.

Porcelain balls are spherical objects made from porcelain, which is a type of ceramic material. Porcelain is a hard and dense material that is created by firing a mixture of clay, feldspar, and other minerals at high temperatures.

Magnesium-aluminum refractory balls a type of refr material used in high-temperature applications. They are composed of a blend of magnesium oxide (MgO) aluminum oxide (AlO3), which gives them their refractory properties.

Silica refractory balls are spherical refractory materials made from high-purity silica. They are commonly used in high-temperature applications, such as in the lining of furnaces, kilns, and other thermal processing equipment.

Magnesia chromite bricks are a type of refractory brick that is commonly used in high-temperature applications, such as in steel, non-ferrous metal, and glass industries. These bricks are known for their excellent resistance to corrosion and high thermal stability.