High-Aluminum Low-Iron Insulating Fire Brick

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Specifications

High aluminum refractory brick belongs to gender refractory materials with its thermal stability.

Feature:

1.bricks are made from high quality bauxite
2.dry pressed
3.burned under tunnel kiln
4.accurate dimension
5.high strength

Product specification: Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the mostly used in the key positions.Molding method: it has down draft kiln and tunnel kiln and the general sintering temperature is 1360-1480 degrees. It is a kind of aluminosilicate refractory product which aluminum oxide (Al2O3) content is higher than 48%.

Item		Properties
Item		LZ-80	LZ-75	LZ-65	LZ-55	LZ-48
Al₂O₃ ,%		80	≥75	≥65	≥55	≥48
Refractoriness °C		≥1790	≥1790	≥1790	≥1770	≥1750
Bulk density,g/cm³		2.65	2.5	2.45	2.4	2.3
Softening temperature under load		1530	≥1520	≥1500	≥1470	≥1420
Permanent linear change,%	1500°CX2H	+0.1 -0.4	+0.1 -0.4	+0.1 -0.4	+0.1 -0.4
Permanent linear change,%	1450°CX2H					+0.1 -0.4
Apparent porosity,%		22	≤23	≤23	≤22	≤22
Cold Crushing strength Mpa		55	≥50	≥45	≥40	≥35
Application		All industrial furnace

Q:Can insulating fire bricks be used in paper mills?: Yes, insulating fire bricks can be used in paper mills. Insulating fire bricks are commonly used in industries that require high-temperature insulation, such as steel, glass, and ceramics. In paper mills, where processes like drying, heating, and burning occur, insulating fire bricks can be used to line kilns, furnaces, and other equipment to provide insulation and prevent heat loss. These bricks have excellent thermal insulation properties and can withstand high temperatures, making them suitable for use in paper mills where heat is a crucial component of the manufacturing process. Additionally, insulating fire bricks are lightweight and have low thermal conductivity, allowing for efficient heat retention and energy savings.

Q:What is the typical cost of insulating fire bricks?: The cost of insulating fire bricks can vary depending on various factors like size, quality, and quantity required. Generally, prices per brick can range from $2 to $10. Nevertheless, it is important to note that these figures are approximate and actual prices may differ based on the source of purchase and specific project requirements. To ensure the most favorable deal, it is advisable to compare prices from different suppliers.

Q:Can insulating fire bricks be used in the construction of smelting crucibles?: Yes, insulating fire bricks can be used in the construction of smelting crucibles. The high heat resistance and insulating properties of these bricks make them suitable for withstanding the extreme temperatures required in the smelting process.

Q:Are insulating fire bricks resistant to thermal spalling?: Insulating fire bricks exhibit resistance to thermal spalling, which is the process of a material cracking or fracturing as a result of abrupt fluctuations in temperature or thermal shock. These bricks are specifically engineered to endure elevated temperatures and thermal cycling without spalling. Their low thermal conductivity allows for efficient insulation against heat transfer, thereby reducing the strain caused by thermal expansion and contraction. Moreover, the composition and structure of insulating fire bricks are meticulously designed to offer outstanding protection against thermal spalling, rendering them a dependable option for applications involving intense heat conditions.

Q:Can insulating fire bricks be used in fireplace construction?: Indeed, fireplace construction can make use of insulating fire bricks. These bricks are specifically crafted to endure extreme temperatures and offer exceptional insulation, rendering them appropriate for lining fireplaces. By retaining heat and impeding heat transfer to the surrounding structure, they enhance the fireplace's efficiency while diminishing the likelihood of harm to adjacent materials. Moreover, the lightweight and manageable nature of insulating fire bricks make them an excellent choice for constructing fireplaces.

Q:What is a JQK composite lightweight thermal insulation brick?: It is a cement based composite waterproof mortar which is pressed and molded. The material has good heat preservation effect and high thermal conductivity.

Q:What are the types of building blocks?: 1. the use of the different parts, building bricks into bricks, floor brick, brick, brick arch shell, brick brick chimney and sewer.2. different building performance, building bricks into bearing brick, brick, brick, non bearing engineering insulation brick, brick, tile, acoustical tile and other flowers.The use of 3. different materials, is divided into building brick clay brick, shale, coal gangue brick, fly ash brick, slag brick, lime sand brick etc..4. according to the shape, the building brick can be divided into solid brick, microporous brick, porous brick and hollow brick. Ordinary bricks and special-shaped bricks, etc..

Q:Do insulating fire bricks require any special fireproof coatings?: No, insulating fire bricks do not require any special fireproof coatings. These bricks are designed to withstand high temperatures and provide excellent insulation properties without the need for additional coatings. They are made from special refractory materials that have high heat resistance and low thermal conductivity. Insulating fire bricks are commonly used in applications such as kilns, furnaces, fireplaces, and other high-temperature environments where insulation is required. Their inherent properties make them capable of withstanding intense heat without the need for any additional coatings or treatments.

Q:Can insulating fire bricks be used in brick ovens?: Yes, insulating fire bricks can be used in brick ovens. Insulating fire bricks are designed to withstand high temperatures and provide excellent heat insulation, making them ideal for use in brick ovens. These bricks are made from lightweight refractory materials, which help to reduce heat loss and improve the overall energy efficiency of the oven. Additionally, insulating fire bricks are resistant to thermal shock, meaning they can withstand rapid changes in temperature without cracking or breaking. This makes them a reliable and durable choice for brick oven construction.

Q:Can insulating fire bricks be used as a backup insulation in refractory linings?: Yes, insulating fire bricks can be used as a backup insulation in refractory linings. They are designed to withstand high temperatures and provide excellent thermal insulation properties, making them suitable for this purpose.

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