High Alumina Brick

  • Friday, 12 May 2023
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High Alumina Brick

High alumina brick are a type of refractory that is used to line the walls of furnaces and kilns. These bricks are very durable, and can withstand high temperatures and pressure. They are also resistant to abrasion and corrosion, making them ideal for use in processes that involve corrosive chemicals. They can also withstand a higher temperature range than fire clay bricks.

These bricks are made by forming in a press machine, then sintering at high temperature in tunnel kiln or shuttle kiln. It is a kind of neutral refractory material, with the alumina oxide content above 48%. It is a good choice for steelmaking, glass and rotary cement kiln. Its refractoriness can reach 1750 1790, higher than fireclay brick and semi-silica brick.

Unlike fireclay brick, high alumina brick has a lower iron content, which makes it more resistant to corrosion from slag, acids and alkali substances. This high resistance also means that these refractory bricks will not crack or crumble as they heat and cool, meaning that they can last for a much longer period of time than conventional bricks.

High alumina bricks can be used in all kinds of furnaces, including open hearth furnaces. They are also very useful for lining the bottom of a blast furnace or a rotary kiln. They can also be used to make furnace nozzles and plugs that are used in the casting system. However, it is important to note that high alumina brick is more expensive than fireclay brick. For this reason, it is important to carefully consider the specific needs of your application before choosing this refractory brick.

The main reason for using this type of refractory brick is that it can withstand very high temperatures and pressures. This means that it will not decompose or wear down under these conditions, which is a huge benefit for a kiln or furnace owner. It is also very dense, which is a great feature for a refractory brick. This means that it will provide a lot of thermal insulation, which will help to keep the furnace or kiln at a consistent temperature.

Another advantage of this refractory brick is that it is very easy to work with. It is very strong and can be molded into many different shapes. This allows for more flexibility in the construction of a kiln or furnace, which can save you money and time. It is also very easy to clean, which is a great feature for any refractory brick.

While normal high alumina brick has stronger refractoriness than fire clay bricks, Rath spinel bricks have an even higher refractoriness. They are suitable for contact with liquid metals, under reducing conditions and for contact with basic slag and gas. They are also tar-soaked and tempered, which further increases their performance.

Tags:acid proof brick | brown fused alumina | magnesia carbon brick

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