The refractory brick is available in several types to match the different applications. They vary in relation to their specific heat handling capacities and structure, as well as the structural and chemical formulations. With the right type of brick used, they are extremely effective at heat containment in a furnace, fireplace or similar environment.
Using the proper refractory brick for the application means it is possible to create a low maintenance, cost-effective and safe heating system for all-round performance. But, the poorly chosen bricks for the furnace can mean increased workplace accidents, regular equipment failures and frequent down times.
Here are a few of the major types of bricks:
The bricks in this category are manufactured in a combination of alumino-silicates. The highest quality bricks are made with aluminum in the region of 90% to 95%. The bricks with the higher concentration of alumino-silicates are more effective. The least effective bricks have a much lower concentration of aluminum and aren’t as resilient at standing up to the heat of the fire. Also, this type of brick is hard-wearing to resist corrosion from chemicals, exceptional abrasion proof and high wear-resistance.
The silicon carbides are a practical choice when in an environment with very high temperatures and high abrasion resistance. This type of material has the ability to give the advanced durability. Also, its high strength property means it has the ability to last a lot longer than most other types of liners.
The last type of liner material is the ceramic bricks. Ceramic is a practical choice for its high heat tolerance levels, abrasion resistance and exceptional wear. Plus, the ceramic materials are relatively easy to mold to a specific shape to make it quite straightforward to match a specific use or application.
Working temperature range
The maximum temperature range the refractory brick is designed to handle varies with the particular unit. For instance, the alumino-silicates are classed as a medium duty brick and is likely to work up to an operating temperature of 900 degrees Fahrenheit. This particular brick may be made up of 50% silica and 35% alumina. It is intended to work in an environment that heats up and cool down quickly. In the higher temperature range of up to 1500 degrees Fahrenheit, the content of alumina is likely to increase to 50% or more. They are practical for a furnace that needs the constant high-heat application.
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