A Simple Key For ceramic heat bricks Unveiled

Phosphate-bonded high alumina brick is desired in many aluminum furnace linings because the phosphate will cause the brick to become proof against wetting and penetration by molten aluminum. Phosphate-bonding also increases the refractory Qualities by expanding density, reducing porosity, expanding strength, and abrasion resistance.

The most typical way to classify high alumina bricks is by their alumina information. Listed here’s a simplified quality reference:

one. One of the crucial Performing properties of high alumina refractory brick may be the construction energy at high temperature. This characteristic is often evaluated with the deformation temperature of refractoriness.

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Even so, higher grades are more brittle and high-priced. It’s essential to match the quality to your exact furnace conditions—not just purchase the highest alumina readily available.

Cold crushing strength signifies Yet another critical residence, with high-top quality high alumina bricks reaching values exceeding fifty MPa, ensuring structural integrity underneath mechanical loading situations. The refractoriness under load (RUL) demonstrates the brick's potential to take care of structural balance though subjected to equally high temperatures and mechanical stress, typically starting from one,450°C to one,520°C based upon composition. Thermal expansion coefficients continue being fairly low and regular, reducing the potential risk of thermal strain and cracking throughout heating and cooling cycles encountered in industrial furnace functions.

Requesting samples and going to the plant (or verifying by using video clip) is highly proposed for bulk discounts.

six. The slag resistance of high alumina brick increases with the rise of Al2O3 material, but its corrosion resistance to alkaline slag is even worse than that of alkaline refractory.

Iron and Steel Marketplace: Perfect for blast furnaces, hot blast stoves, and ladles due to their outstanding thermal security and resistance to slag erosion.

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When sourcing high alumina bricks, especially for Global procurement, take into consideration the following:

Properties of high alumina brick contain fantastic refractoriness, Charge-efficient effectiveness, high strength, and abrasion resistance, resistance to acidic slags, and robust resistance to thermal shock. The Actual physical Qualities of high alumina brick refractories might be personalized to enhance efficiency in selected programs.