Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 25
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 20 m.t./month
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Okorder series heat insulation brick
Okorder series thermal insulation brick is an effective, energy saving, low carbon, environmental protection advanced, according to the ASTM standard manufacturing products. Okorder series products have all kinds of materials in the field of metallurgy, industrial furnaces, aluminum, the best Li Ning petrochemical and insulation, electric power and glass ceramics. They can be used as part of an insulation or not to melt. Products have been widely used in the following furnace, achieved satisfactory results.
Application of heat preservation brick
Metallurgical Industry: blast furnace, hot blast furnace, heating furnace, etc..
Petrochemical Industry: ethylene cracking furnace, hydrogen furnace, the main furnace, heating furnace, etc..
Ceramic industry: roller kiln, kiln, etc..
Glass industry: glass furnace regenerator, etc.
Carbon industry: carbon furnace, etc..
Aluminum electrolysis industry: aluminum reduction cell, etc.
Other industries: tunnel kiln, shuttle kiln, etc..
Advantages of heat insulation brick
Low thermal conductivity: many air holes will bring good thermal insulation effect, energy saving.
High crushing strength: high crushing strength, volume stability.
Low heat storage: small heat storage, absorb more heat, energy-saving effect is obvious.
Chundu: High-speed Rail, low content of alkali metal impurities.
Accuracy: the size of the brick machining precision, cutting and grinding the special shape, speed up the brick.
Technical Data
ITEM | GJM30 | GJM28 | GJM26 | GJM23 |
Classification Temperature, ℉/℃ | 3000/1650 | 2800/1540 | 2600/1430 | 2300/1260 |
Bulk Density，g/cm³ | ≤1.0 | ≤0.9 | ≤0.8 | ≥0.5 |
Reheating Linear Change, % | ≤0.9 (1550℃,12 h) | ≤0.8 (1510℃,12 h) | ≤0.7 (1410℃,12 h) | ≤0.5 (1230℃,12 h) |
Al2O3 Content, % | ≥75 | ≥65 | ≥55 | ≥45 |
Fe2O3 Content, % | ≤0.5 | ≤0.6 | ≤0.7 | ≤1.0 |
Thermal Conductivity: | ||||
800℃, w/m.k | ≤0.39 | ≤0.37 | ≤0.35 | ≤0.18 |
1000℃, w/m.k | ≤0.43 | ≤0.41 | ≤0.39 | ≤0.20 |
1200℃, w/m.k | ≤0.48 | ≤0.46 | ≤0.43 | --- |
Insulating brick
- Q: Are insulating fire bricks suitable for use in chimneys and fireplaces?
- Chimneys and fireplaces can benefit from the use of insulating fire bricks. These bricks are specifically designed to endure high temperatures and offer superb thermal insulation. They are crafted from lightweight materials, such as ceramic fibers or lightweight aggregates, aiding in heat retention and preventing heat loss. Consequently, they are well-suited for lining chimneys and fireplaces, as they are capable of effectively trapping and emitting heat, resulting in increased energy efficiency. Moreover, insulating fire bricks possess low thermal conductivity, enabling them to resist cracking and spalling that may occur due to sudden changes in temperature. This ensures their longevity and durability. Overall, insulating fire bricks are a dependable and efficient choice for bolstering the performance and safety of chimneys and fireplaces.
- Q: Can insulating fire bricks be used for sound insulation?
- No, insulating fire bricks are primarily designed for high-temperature applications such as lining furnaces, kilns, or fireplaces, and are not effective for sound insulation purposes.
- Q: Can insulating fire bricks be used for insulation in smelters?
- Yes, insulating fire bricks can be used for insulation in smelters. Insulating fire bricks are specifically designed to withstand high temperatures and provide excellent thermal insulation. They are made from lightweight refractory materials that have low thermal conductivity, allowing them to effectively retain heat and minimize heat loss. This makes them ideal for use in smelters, where maintaining high temperatures is crucial for efficient metal smelting processes. Additionally, insulating fire bricks are resistant to chemical attack and mechanical stress, ensuring their durability and suitability for use in harsh smelting environments.
- Q: Can insulating fire bricks be used in high-temperature insulation boards?
- Yes, insulating fire bricks can be used in high-temperature insulation boards. Insulating fire bricks are designed to withstand high temperatures and provide excellent thermal insulation. They are commonly used in applications that require insulation at elevated temperatures, such as kilns, furnaces, and fireplaces. When used in high-temperature insulation boards, insulating fire bricks can help to minimize heat loss and maintain a stable temperature. However, it is important to consider the specific requirements of the application and ensure that the insulating fire bricks are compatible with the insulation board material and installation method.
- Q: Can insulating fire bricks be used in aluminum furnaces?
- Indeed, aluminum furnaces can utilize insulating fire bricks. These bricks are specifically engineered to possess exceptional thermal insulation characteristics, rendering them ideal for deployment in high-temperature settings like aluminum furnaces. Their capacity to endure the intense heat generated during aluminum melting and their ability to preserve heat within the furnace contribute to enhanced energy efficiency. Moreover, insulating fire bricks offer additional benefits such as shielding against heat dissipation, mitigating the likelihood of overheating, and facilitating a more steady and regulated heating procedure.
- Q: Are insulating fire bricks resistant to acid attack?
- Insulating fire bricks are known for their resistance to acid attack. They are manufactured using durable materials that can withstand high temperatures and offer excellent insulation properties. These bricks are typically composed of lightweight refractory materials like alumina, silica, and other refractory oxides, which are renowned for their ability to resist chemical corrosion, including acids. Nevertheless, it is crucial to acknowledge that the acid resistance of insulating fire bricks can vary depending on their specific composition and manufacturing process. Some bricks may exhibit higher resistance to acids than others. Therefore, it is advisable to consult the manufacturer or supplier for detailed information regarding the acid resistance of their insulating fire bricks. Generally, insulating fire bricks are widely used in various applications where they may encounter acids, such as industrial furnaces, kilns, and high-temperature environments. They are valued for their durability and capacity to withstand harsh chemical surroundings, including acid exposure. However, it is always essential to consider the precise chemical composition and concentration of the acids involved, as well as the temperature conditions, to determine the suitability of insulating fire bricks for a particular application.
- Q: Are insulating fire bricks resistant to gas permeability?
- Yes, insulating fire bricks are resistant to gas permeability. They have low porosity and high density, which prevents the penetration of gases, making them an effective barrier against gas permeation.
- Q: Is it possible to paint or coat insulating fire bricks?
- Yes, it is possible to paint or coat insulating fire bricks. However, it is important to use a paint or coating that can withstand high temperatures, as insulating fire bricks are designed to be used in extremely hot environments. Regular paint or coatings may not be suitable as they can burn or deteriorate when exposed to high temperatures. It is recommended to use specialized high temperature paint or coatings that are specifically formulated to withstand the heat of insulating fire bricks. These paints or coatings typically have a high temperature resistance of several hundred degrees Celsius or more. Additionally, it is important to properly clean and prepare the surface of the bricks before applying any paint or coating to ensure good adhesion and durability.
- Q: Are insulating fire bricks resistant to insects and rodents?
- Insulating fire bricks do not have a specific design to resist insects and rodents. Although these bricks are mainly utilized for their exceptional thermal insulation properties in high-temperature settings like furnaces and kilns, they lack inherent resistance against pests. In case you have worries about insects or rodents, it is advisable to incorporate supplementary pest control methods such as sealing gaps or cracks and employing suitable pest deterrents.
- Q: Do insulating fire bricks have a high compressive strength?
- Yes, insulating fire bricks typically have a high compressive strength. These bricks are made from special refractory materials that are designed to withstand high temperatures and mechanical stress. As a result, they have excellent compressive strength, allowing them to bear heavy loads without cracking or breaking. The high compressive strength of insulating fire bricks makes them ideal for applications where structural integrity is crucial, such as in furnaces, kilns, and other high-temperature industrial equipment.
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Insulating Fire Brick - Refractory Mullite Insulating Refractory Brick JM 25
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 20 m.t./month
OKorder Service Pledge
OKorder Financial Service
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