Cordierite Kiln Furniture Insulating Fire Brick

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Insulating Fire Brick (IFB) in GJM 23, 26, 30 Brands

Insulating Fire Brick GJM23 - High-Performance Insulation Range

Material: cordierite &mullite

It is used in heat shock applications that would crack and shatter most other ceramic materials, it can survive thousands of heating and cooling cycles.

it is characterized by high purity, high density, high strength and good thermal shock resistance, is mainly used as high temperature (1350-1650oC) kiln linings or kiln furniture in ceramics and refractories industries, gas combustion furnace in petrochemical industry and other high temperature services where thermal shock happens frequently.

Cordierite porcelain
Essential components	2MgO 2Al2O3 5SiO2
	Density		g/cm3	2.5
	Water Absorption			0
Material characteristics	Agglomeration temperature			1350
	Hardness		HV	800
	AntiFolding Strength		Kgf/cm2	900
Physical characteristics	Compressive Strength		Kgf/cm2	3500
	Tenacity		Map.m3/2	-
	Highest application temperature			1 000
	Thermal expansion coefficient 0-1000		/	4*10-6
Thermodynamic property	Heat resistance		T()	250
	Thermal conductivity		W/m.k(25-300)	1.3-
		20		>1012
		100	>.cm	107-108
	Volume resistivity	300		3*105
Electrical specification	Insulation breakdown intensity		KV/mm	10
	Dielectric constant		100MHz(E)	6

Q: Can insulating fire bricks be used in chimney construction?: Yes, insulating fire bricks can be used in chimney construction. These bricks have high heat resistance and low thermal conductivity, making them suitable for lining chimneys and other high-temperature applications. They help to insulate the chimney and prevent excessive heat transfer, reducing the risk of structural damage and improving energy efficiency.

Q: Do insulating fire bricks require a specific curing or drying process before use?: Yes, insulating fire bricks typically require a specific curing or drying process before use. This involves gradually heating the bricks to remove any moisture or volatile materials present, which helps to prevent cracking or damage during subsequent use. The exact curing or drying process may vary depending on the specific type and manufacturer of the insulating fire bricks.

Q: Can insulating fire bricks be used in the construction of hot water boilers?: Yes, insulating fire bricks can be used in the construction of hot water boilers. Insulating fire bricks are specially designed to withstand high temperatures and provide excellent thermal insulation. They have low thermal conductivity, which helps to reduce heat loss and improve the overall energy efficiency of the boiler. These bricks also have good resistance to thermal shock, making them suitable for the intense heat generated in hot water boilers. Additionally, their lightweight nature makes them easier to handle and install in the boiler, making them a popular choice for insulation purposes in hot water boiler construction.

Q: Are insulating fire bricks resistant to warping?: Insulating fire bricks are known for their resistance to warping. They are specifically designed to withstand high temperatures and thermal shocks, preventing any potential warping. These bricks are crafted using lightweight materials like clay, silica, and alumina, which are combined with additives to enhance their insulation capabilities. Moreover, these additives not only contribute to the brick's insulation, but also aid in its resistance against warping. Furthermore, insulating fire bricks undergo a meticulous manufacturing process that ensures dimensional stability and reduces the risk of warping. It is worth mentioning, however, that prolonged and extreme exposure to high temperatures may still result in some warping, albeit to a lesser extent than other brick types.

Q: How does an insulating fire brick work?: Insulating fire bricks, which are also referred to as refractory bricks, serve as thermal barriers in various industrial applications and are designed to withstand high temperatures. These bricks are made from refractory materials that possess low thermal conductivity, indicating their poor heat conduction abilities. The primary mechanism employed by insulating fire bricks revolves around their capability to hinder and slow down heat transfer. Unlike regular bricks or concrete, insulating fire bricks possess a significant number of air pockets within their structure, which act as insulators. These air pockets effectively obstruct the movement of thermal energy, preventing heat transfer. When exposed to high temperatures, insulating fire bricks absorb minimal amounts of heat due to their low thermal conductivity. Rather than conducting heat through the brick, the energy is either absorbed or reflected by the air pockets present in the brick's structure. As a result, heat is unable to permeate to the other side of the brick, effectively creating a thermal barrier. Moreover, the refractory materials utilized in insulating fire bricks inherently possess resistance against thermal shock, enabling them to endure rapid temperature changes without cracking or breaking. This quality makes them exceptionally suitable for applications where extreme temperature fluctuations occur frequently. Insulating fire bricks find extensive usage in industries such as metallurgy, ceramics, glass manufacturing, and kiln construction. They are primarily used to line furnaces, kilns, and other equipment operating at high temperatures. By effectively reducing heat transfer, these bricks contribute to enhancing energy efficiency, minimizing heat loss, and safeguarding surrounding materials and structures from the extreme levels of heat. In summary, the operational principle of an insulating fire brick lies in its ability to minimize heat transfer by virtue of its low thermal conductivity and air pocket structure. By establishing a thermal barrier, these bricks fulfill a critical role in providing insulation, protecting against heat loss, and ensuring the smooth functioning of high-temperature processes.

Q: Are there any safety precautions to consider when using insulating fire bricks?: Yes, there are safety precautions to consider when using insulating fire bricks. Firstly, it is important to wear appropriate personal protective equipment, such as gloves and safety goggles, to protect against potential injuries. Additionally, due to the high temperatures involved, it is crucial to handle the bricks with care to avoid burns or related accidents. Adequate ventilation should be ensured to prevent the buildup of harmful gases and fumes. Lastly, it is essential to follow the manufacturer's instructions and guidelines for proper installation and usage to minimize any potential risks.

Q: Are insulating fire bricks resistant to weathering or aging?: Yes, insulating fire bricks are highly resistant to weathering and aging. These bricks are specifically designed to withstand extreme temperatures and harsh environmental conditions. They are made from high-quality refractory materials, such as alumina, silica, and other additives, which provide excellent thermal insulation properties and high resistance to corrosion and erosion. The manufacturing process of insulating fire bricks involves carefully selected raw materials and precise control of firing temperatures, resulting in a dense and uniform structure. This structure prevents the penetration of moisture and other weathering agents, ensuring prolonged durability and resistance to aging. Furthermore, insulating fire bricks are also resistant to thermal shock, meaning they can withstand rapid temperature changes without cracking or crumbling. This characteristic further enhances their ability to endure adverse weather conditions. Overall, insulating fire bricks have proven to be highly reliable in various applications where exposure to weathering elements is a concern. They are widely used in industries such as steel, ceramic, glass, and cement manufacturing, as well as in high-temperature applications like kilns, furnaces, and chimneys.

Q: Can insulating fire bricks be used for insulation in glass manufacturing?: Insulation in glass manufacturing can be achieved using insulating fire bricks. These bricks are specifically designed to possess exceptional thermal insulation properties, a high resistance to heat, and low thermal conductivity. These qualities make them well-suited for situations where the maintenance or control of high temperatures is necessary, such as in glass manufacturing processes. The implementation of insulating fire bricks in glass manufacturing contributes to the reduction of heat loss and the enhancement of energy efficiency. By insulating the furnace or kiln, these bricks prevent excessive heat from escaping, resulting in a decreased energy requirement to sustain the desired temperature. This not only leads to savings in energy costs but also facilitates the establishment of a more stable and regulated environment for the glass manufacturing process. Moreover, insulating fire bricks possess the ability to endure the extreme temperatures typically encountered during glass manufacturing, thus making them a dependable choice for insulation. With a capacity to withstand temperatures reaching up to 3000 degrees Fahrenheit (1650 degrees Celsius), these bricks remain structurally intact and effective in their insulation function within the furnace or kiln. To summarize, the exceptional thermal insulation properties, high heat resistance, and low thermal conductivity of insulating fire bricks render them a suitable option for insulation in glass manufacturing. Their implementation aids in the enhancement of energy efficiency, the maintenance of stable temperatures, and the creation of a controlled environment for the glass manufacturing process.

Q: Do insulating fire bricks have a high compressive strength?: Yes, insulating fire bricks typically have a high compressive strength due to their dense and sturdy composition.

Q: Can insulating fire bricks be used in the construction of glass melting furnaces?: Insulating fire bricks are indeed applicable for constructing glass melting furnaces. These bricks are specifically designed to possess exceptional heat resistance and endure exceedingly high temperatures. Their low thermal conductivity allows for efficient heat retention and minimal heat loss. In glass melting furnaces, where temperatures can reach up to 1600°C (2912°F) or even higher, insulating fire bricks serve a pivotal role in maintaining the desired temperature within the furnace. By utilizing these bricks as the lining for the furnace, the heat generated during the melting process can be effectively contained, resulting in improved energy efficiency and reduced heat loss. Additionally, insulating fire bricks are lightweight and exhibit remarkable thermal shock resistance, making them highly suitable for glass melting furnaces that experience sudden temperature fluctuations. This ensures that the bricks will not crack or break under the extreme conditions present in the furnace. Overall, incorporating insulating fire bricks into the construction of glass melting furnaces offers superior insulation, energy efficiency, and durability, rendering them an ideal choice for this application.

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