Insulating Fire Brick 65% Al2O3 Min High Alumina

Insulating Fire Brick 65% Al2O3 Min High Alumina

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 500 m.t.

Supply Capability:: 1000 m.t./month

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Specifications

1.65% Al2O3 min;
2. Refractoriness: 1790C min;
3.For steelmaking furnaces;
4.ISO 9001 Certificate;
5.Custom shape.

High alumina insulating fire brick is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.

This series of High Alumina Insulating Fire Brick are made of selected high alumina bauxite, kaolin caly, hollow microsphere as the mian material.By shaping at high pressure and sintering at high temperature.

Items		Mark
		Hihg Alumina brick			Clay brick		Phosphoric acid dipping clay brick
		GL-65	GL- 55	GL- 48	ZGN-42	ZGN-42	Phosphoric acid dipping clay brick
Chemical Compositions ( %) ≥	Al2O3	65	55	48	42	42
	Fe2O3	2.0	2.0	2.0	1.6	1.7
	P2O5	-	-	-	-	-	7
Refractoriness ℃		1790	1770	1750	1750	1750	-
Apparent Porosity (%)≤		19	19	18	15	16	14
Alkali resistance (strength degradation)%≤		-	-	-	-	-	15
0.2MPaRefractoriness under load,℃≥		1500	1480	1450	1450	1430	1450
CCS (Mpa)≥		58.8	49	49	58.8	49	60
Dead burnt linear change(%)≤	1450℃×2h			0/-0.2	0/-0.2	0/-0.3	0/-0.2
Dead burnt linear change(%)≤	1500℃×2h	0/-0.2

Starting from the raw material into factory, Every production process of high alumina insulating fire bricks should through strict quality control, both the raw materials and finished products should be inspected time after time, to esure that each product to satisfy our customers, because of advanced automatic batching system and 2500 tons automatic hydraulic machine in the world were introduced, then a new line of the ladle fire bricks and other styling refractory products with a superior quality was put into production.

Q: Are insulating fire bricks easy to cut or shape?: Compared to other bricks, insulating fire bricks offer a relatively simple cutting and shaping process. This is mainly because of their lower density and composition, enabling easier manipulation using standard masonry tools. However, it is crucial to acknowledge that the level of simplicity can differ depending on the specific type and brand of insulating fire brick. Some may demand special tools or techniques for cutting or shaping, while others may be more user-friendly. To ensure accurate cutting or shaping techniques, it is always advisable to refer to the manufacturer's instructions or seek professional guidance when working with insulating fire bricks.

Q: How long do insulating fire bricks typically last?: Insulating fire bricks typically last for several years, with an average lifespan of 10 to 20 years.

Q: Can insulating fire bricks withstand thermal shock?: Insulating fire bricks are designed to have high thermal insulation properties and are typically used in applications where thermal shock is not a major concern. While insulating fire bricks can withstand moderate temperature changes, they are not specifically engineered to resist thermal shock. Thermal shock occurs when there is a rapid change in temperature, causing stress and potential damage to the material. Insulating fire bricks are more susceptible to thermal shock compared to dense fire bricks, which are specifically designed to withstand extreme temperature changes. If thermal shock is a concern in your application, it is recommended to consider other types of refractory materials that are specifically designed to withstand rapid temperature changes.

Q: Can insulating fire bricks be used in the construction of heat shields?: Certainly, heat shields can indeed be constructed using insulating fire bricks. These bricks are specifically designed to withstand elevated temperatures and possess exceptional thermal insulation properties. Their ability to effectively absorb and distribute heat makes them an ideal choice for the creation of heat shields, which serve to safeguard against excessive heat and mitigate thermal damage. In industries that involve high temperatures, such as steel, glass, and ceramics, insulating fire bricks are frequently employed. Moreover, their lightweight nature and ease of handling make them a practical option for constructing portable or easily installable heat shields. In summary, insulating fire bricks are a reliable and appropriate material for constructing heat shields in a diverse range of applications.

Q: How do insulating fire bricks help improve the efficiency of combustion processes?: Insulating fire bricks play a pivotal role in enhancing the efficiency of combustion processes through various means. To begin with, their insulating properties aid in minimizing heat loss and sustaining higher temperatures within the combustion chamber. This is of great significance as elevated temperatures promote more thorough combustion, resulting in reduced fuel consumption and heightened energy efficiency. By impeding heat dissipation, insulating fire bricks also contribute to the preservation of thermal energy within the combustion system. Consequently, less heat is wasted, and a greater portion of it is utilized for the combustion process, ultimately leading to an overall improvement in efficiency. Furthermore, insulating fire bricks can assist in establishing a more controlled and stable combustion environment. They serve as a thermal barrier between the combustion chamber and the surrounding surroundings, mitigating the risk of heat transfer to external components and minimizing the likelihood of overheating or damage to the combustion system. Moreover, insulating fire bricks can aid in the reduction of emissions during combustion processes. By sustaining higher temperatures, they encourage more complete combustion, consequently resulting in lower levels of harmful pollutants being released into the atmosphere. This is particularly critical for industries that must adhere strictly to environmental regulations. In conclusion, insulating fire bricks enhance the efficiency of combustion processes by minimizing heat loss, preserving thermal energy, establishing a controlled environment, and reducing emissions. Their capacity to sustain higher temperatures and prevent heat transfer ultimately leads to reduced fuel consumption and improved energy efficiency.

Q: What is the typical compressive strength of an insulating fire brick?: The typical compressive strength of an insulating fire brick varies depending on the specific composition and manufacturing process. However, on average, insulating fire bricks have a compressive strength ranging from 1,000 pounds per square inch (psi) to 3,000 psi. These bricks are designed to withstand high temperatures and provide thermal insulation in various applications, such as kilns, furnaces, and fireplaces. The compressive strength is an important characteristic of insulating fire bricks as it determines their ability to resist crushing and maintain structural integrity under load.

Q: Can insulating fire bricks be used for both residential and commercial purposes?: Yes, insulating fire bricks can be used for both residential and commercial purposes. These bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for various applications such as lining fireplaces, kilns, furnaces, and industrial ovens in both residential and commercial settings.

Q: Are insulating fire bricks suitable for use in glass furnaces?: Indeed, glass furnaces can benefit from the use of insulating fire bricks. The purpose of these bricks is to possess a low thermal conductivity, thereby effectively insulating the soaring temperatures within the furnace. By minimizing heat loss, these bricks ensure a steady temperature is maintained inside the furnace, a vital factor in the glass-making process. Moreover, insulating fire bricks are capable of enduring the intense temperatures and thermal shocks typically experienced in glass furnaces. Additionally, their lightweight nature facilitates simple installation and maintenance procedures. In conclusion, insulating fire bricks prove to be a dependable and pragmatic option for utilization in glass furnaces.

Q: Can insulating fire bricks be used in the construction of smelting furnaces?: Yes, insulating fire bricks can be used in the construction of smelting furnaces. These bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for smelting furnaces where heat retention is crucial. They help to minimize heat loss and maintain the desired temperature within the furnace, thus improving energy efficiency and overall performance.