Carborundum Refractory Fire Brick

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Specifications

1.Passed ISO 9001;
2.57% Alumina content,or as customized;
3. Carborundum Fire Brick is widely used in iron-making.

AL₂O₃SiCC carborundum fire brick are universal materials for the lining of molten pretreatment equipments of molten iron tank, torpedo car, etc. The products are shaped by machine power by using dense bauxite clinkerand brown fused alumina as base materials and adding high quality SiC fines and high purity glake fraphite. It has the advantages of excellent slag resistance, thermal shock resistance, good resistance to mechanical erosion, abrasion resistance, etc.

Carborundum products belong to high grade refractory material,maximal use temperature is 1500°C,it has excellent thermal conductivity,heat shock stability,high load softening point and very good wear-resisting property,widely used in various industries with special requirement.

Item		Si3N4 bonded SiC brick	Sialon bonded SiC brick	Sialon bonded corundum brick
SiC, % ≥		72	70	80 (Al2O3)
Si3N4, % ≥		20	5 (N)	5 (N)
Fe2O3, % ≤		0.7	0.7	0.7
Bulk density g/cm3, ≥		2.65	2.65	3.1
Apparent porosity %,≤		16	16	16
CCS MPa, ≥		150	150	120
MOR Mpa	Room temp. ≥	42	42	12
MOR Mpa	1400°C×0.5hrs ≥	45	42	20
Refractoriness under load °C ≥ (0.2MPa, 0.6%)		1700	1700	1700
Thermal shock resistance, cycles (Water quenching at 1100°C)≥		30	30	30

Q:Do insulating fire bricks have a high resistance to spalling?: Yes, insulating fire bricks have a high resistance to spalling.

Q:Can insulating fire bricks be used in the construction of pottery molds?: Insulating fire bricks are indeed applicable for the construction of pottery molds. Crafted from lightweight refractory materials, these bricks possess exceptional heat insulation qualities. Specifically engineered for high-temperature applications like pottery kilns, they offer a range of benefits. When constructing pottery molds, it is imperative to utilize materials that can endure the kiln's intense heat. Insulating fire bricks can withstand temperatures of up to 3000°F (1650°C), rendering them ideal for pottery mold construction. They provide insulation to prevent heat dissipation and maintain consistent temperatures within the kiln, crucial for achieving the desired firing results. Moreover, insulating fire bricks can be conveniently shaped and cut to suit the designated mold design. Their lightweight nature also simplifies handling during the mold construction process. Additionally, the insulating properties of these bricks curtail energy consumption by preventing excessive heat loss, making them a cost-effective choice in the long term. All in all, insulating fire bricks prove to be a fitting option for constructing pottery molds due to their capacity to withstand high temperatures, offer insulation, and be easily molded to meet specific design requirements.

Q:Can insulating fire bricks be used in the construction of foundry furnaces?: Yes, insulating fire bricks can be used in the construction of foundry furnaces. These bricks are made from lightweight refractory materials that have excellent insulation properties, allowing them to withstand high temperatures and retain heat efficiently. They are commonly used in foundry furnaces to line the walls, floor, and roof, helping to minimize heat loss and improve energy efficiency.

Q:Several kinds of energy-saving bricks: The insulation brick integrates the excellent heat preservation effect into the wall while building the wall. Low thermal conductivity, high strength, strong durability, simple construction, light weight, easy loading and unloading, economic, green, environmental protection, sound insulation, fire protection and so on.

Q:Do insulating fire bricks have a low thermal expansion rate?: Yes, insulating fire bricks generally have a low thermal expansion rate. These bricks are designed to withstand high temperatures and thermal shocks, and one of their key properties is their ability to maintain their shape and dimensions under extreme heat conditions. Insulating fire bricks are made from materials that have a low coefficient of thermal expansion, meaning they expand and contract minimally when exposed to changes in temperature. This low thermal expansion rate ensures that the bricks remain stable and do not crack or break due to thermal stress. Additionally, the low thermal expansion rate of insulating fire bricks allows for better insulation performance, as it minimizes the gaps that can form between the bricks when they expand and contract, reducing heat loss and increasing energy efficiency.

Q:Can insulating fire bricks be used in both residential and industrial applications?: Yes, insulating fire bricks can be used in both residential and industrial applications. Insulating fire bricks are designed to provide thermal insulation, which helps to prevent heat loss and maintain a desired temperature in various settings. In residential applications, they can be used in fireplaces, wood-burning stoves, and kilns to improve energy efficiency and reduce heat loss. In industrial applications, insulating fire bricks are commonly used in furnaces, kilns, and other high-temperature environments to provide insulation and protect against heat transfer. They are also used in the construction of ovens, chimneys, and boilers in both residential and industrial settings. Overall, insulating fire bricks are versatile and can be applied in a wide range of applications, making them suitable for both residential and industrial use.

Q:Can insulating fire bricks be used for insulation in petrochemical plants?: Yes, insulating fire bricks can be used for insulation in petrochemical plants. Insulating fire bricks are known for their excellent thermal properties, including low thermal conductivity and high resistance to heat transfer. These properties make them suitable for use in high-temperature environments such as petrochemical plants, where insulation is crucial to prevent heat loss and maintain optimal operating conditions. Additionally, insulating fire bricks are lightweight and have good mechanical strength, making them easy to install and durable in industrial settings. They are also resistant to chemical corrosion, which is essential for petrochemical plants that handle various corrosive substances. Therefore, insulating fire bricks can effectively provide insulation and contribute to energy efficiency and safety in petrochemical plants.

Q:Are insulating fire bricks resistant to mold or mildew?: Insulating fire bricks do not have resistance to mold or mildew. These bricks are made to withstand high temperatures and provide insulation, but they do not naturally prevent mold or mildew growth. If exposed to moisture or dampness, mold and mildew can still develop on the surface of these bricks. To avoid mold or mildew, it is crucial to keep the bricks dry and well-ventilated. Regular cleaning and maintenance can also be effective in preventing mold or mildew growth on the bricks.

Q:Do insulating fire bricks require any special installation techniques?: Yes, insulating fire bricks require special installation techniques. These bricks are typically lightweight and have low thermal conductivity, making them highly effective in insulating applications. To ensure proper installation, it is important to follow the manufacturer's guidelines and use appropriate tools, such as refractory mortar or adhesive, to securely bond the bricks together. Additionally, proper curing and drying procedures should be followed to avoid any potential cracking or damage during the installation process.

Q:Are insulating fire bricks resistant to fire damage?: Yes, insulating fire bricks are resistant to fire damage. They are designed to withstand high temperatures and provide excellent insulation properties, making them suitable for use in fireplaces, kilns, furnaces, and other applications that involve exposure to intense heat.

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