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 require preheating before use?: Yes, insulating fire bricks typically require preheating before use. Preheating helps to eliminate any moisture present in the bricks and prevent thermal shock when exposed to high temperatures. This process ensures their stability and enhances their insulation properties.

Q:Coke burns in a closed house. Will anyone suffocate in it?: Coke incomplete combustion can produce colorless gas carbon monoxide toxic odor. Carbon monoxide is a harmful gas. It will enter the body in the blood and hemoglobin, hemoglobin can combine with oxygen, cause the body tissue hypoxia, which causes the body to suffocation.

Q:Can insulating fire bricks be used in industrial furnaces?: Industrial furnaces can indeed utilize insulating fire bricks. These bricks are engineered to endure high temperatures and possess exceptional insulation properties. They are fabricated from lightweight refractory materials like alumina, silica, or mullite, all of which have low thermal conductivity. This enables them to effectively retain heat within the furnace, thereby decreasing heat loss and enhancing energy efficiency. In the context of industrial furnaces, where elevated temperatures are necessary for various processes such as metal melting, glass production, or ceramic manufacturing, insulating fire bricks can be employed to line the furnace's internal walls and floor. Their insulation capabilities aid in maintaining a consistent temperature inside the furnace, guaranteeing optimal conditions for the industrial procedure. Another advantage of insulating fire bricks is their lightweight nature, which simplifies handling and installation when compared to conventional dense fire bricks. This streamlined process can save time and reduce labor expenses during the construction or repair of industrial furnaces. However, it is important to note that the specific type and composition of insulating fire bricks should be chosen with care, taking into account the operating temperature and requirements of the industrial furnace. Different types of insulating fire bricks possess varying temperature limits and resistance to thermal shock. Therefore, it is advisable to consult with a professional or refractory expert to ensure the appropriate selection and installation of insulating fire bricks in industrial furnaces.

Q:Can insulating fire bricks be used for chimney lining?: Indeed, chimney lining can indeed benefit from the utilization of insulating fire bricks. These bricks are meticulously crafted to endure soaring temperatures and excel in heat retention. Their remarkable capacity for minimizing thermal conductivity effectively curbs heat dissipation, thereby enhancing the chimney's efficiency. Moreover, their impressive resistance to cracking and spalling renders them a resilient choice for lining. Nevertheless, it remains crucial to ascertain that the chosen insulating fire bricks align with the particular chimney type and adhere to the applicable local building codes and regulations.

Q:Do insulating fire bricks have a high thermal stability?: Yes, insulating fire bricks have a high thermal stability. They are designed to withstand high temperatures without significant deterioration or structural damage, making them an excellent choice for applications requiring insulation and heat resistance.

Q:Are insulating fire bricks suitable for use in boilers?: Boilers can indeed utilize insulating fire bricks. With their ability to withstand high temperatures, insulating fire bricks prove themselves as a viable option for a range of applications, including boilers. These bricks are crafted from lightweight materials like ceramic fibers or vermiculite, imparting exceptional thermal insulation properties. Consequently, they proficiently trap heat within the boiler, curbing heat loss and enhancing energy efficiency. Furthermore, insulating fire bricks exhibit resilience against thermal shock, chemical attack, and corrosion, ensuring their endurance and longevity in boiler settings. In summary, incorporating insulating fire bricks in boilers can optimize performance, decrease energy consumption, and elevate the overall efficiency of the heating system.

Q:Can insulating fire bricks be used in the construction of ovens or kilns for pottery?: Yes, insulating fire bricks can be used in the construction of ovens or kilns for pottery. These bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for creating a stable and efficient heat environment required for pottery firing.

Q:Do insulating fire bricks have low thermal conductivity?: Yes, insulating fire bricks have low thermal conductivity.

Q:Can insulating fire bricks be used for flooring insulation?: Insulating fire bricks are primarily designed for high-temperature applications such as kilns, furnaces, and fireplaces. While they can provide excellent thermal insulation, they may not be the best choice for flooring insulation. Insulating fire bricks are typically softer and less durable compared to other flooring materials, which can make them susceptible to damage from foot traffic. Additionally, they may not provide sufficient support and stability for the floor, especially in high-traffic areas. For flooring insulation, it is generally recommended to use materials specifically designed for this purpose, such as foam boards, cork, or rubber underlayments. These materials are more resilient, durable, and better suited to withstand the demands of flooring applications. They also offer better noise reduction and moisture resistance, which are important considerations for flooring insulation.

Q:Are insulating fire bricks resistant to carbon monoxide?: Yes, insulating fire bricks are resistant to carbon monoxide. These bricks are specifically designed to withstand high temperatures and are commonly used in applications where exposure to intense heat and chemicals, such as carbon monoxide, is expected. The insulating properties of these bricks make them highly resistant to heat transfer, allowing them to maintain their structural integrity in the presence of carbon monoxide and other combustion gases. This resistance to carbon monoxide makes insulating fire bricks an ideal choice for applications such as furnaces, kilns, and other high-temperature environments where the risk of carbon monoxide exposure is present.

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