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Heavy High Aluminum Refractory Bricks Wholesale

Home / Products / Refractory Brick / Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick
  • Heavy High Aluminum Brick

Heavy High Aluminum Brick

Product Description: Select high bauxite clinker and the refractory clay to compound in multi-level and to mold, at last, burn under high temperature. The heavy high aluminum brick has three marks according to the content of the alumina, make sure the aluminum content and high-temperature performance of the heavy high aluminum brick by adjusting the grades of the high bauxite and percentage of clay to satisfy different service conditions and requirements.

Application: Apply to the furnace lining of a high-temperature industrial furnace, kiln car brick, ejector plate, hearth, furnace tube, and muffle lining.


Property: High compression strength, chemical stability, low porosity, high anti-scouring force, and such brick can be fine-finished into various products according to the design requirements of the clients.


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  • Product Parameter
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Typical Chemical and Physical Index:

LZ-48

LZ-55

LZ-65

Operating Temperature (℃)

1420

1470

1500

Apparent Porosity≤ %

22

22

23

Reburning Line Change ℃×hr % ≤

1400×3

0.1～-0.4

1400×3

0.1～-0.4

1400×3

0.1～-0.4

Normal Temperature Compressive Strength (Mpa)

39.2

44.1

49.0

0.2 Mpa Load Softening Temperature ℃

1420

1470

1500

AI2O3 ≥

48

55

65


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Company
Dongtai Hongda Heat Resistant Material Co., Ltd.
Dongtai Hongda Heat Resistant Material Co., Ltd. is China High Aluminum Refractory Bricks Manufacturers and Wholesale Heavy High Aluminum Brick Suppliers dedicated to the research and development of high-grade insulating refractory products, specializing in the petrochemical, metallurgy, ceramics, new energy, electronics, mechanical heat treatment and other industries. It provides high-quality HJM series of insulating refractory products and amorphous castables.
Founded in 2008 with a registered capital of 20 million yuan, the company is located in Dongtai, Jiangsu Province, the home of China's refractory materials, with a beautiful environment and convenient transportation.
With a complete quality control and assurance system and in strict accordance with the American ASTM standard organization of production, the company has passed the ISO 9001:2015 quality certification in 2010, the ISO 14001:2015 environmental certification in 2019, the ISO 45001:2018 occupational health certification in 2022, achieving total quality management of the production process. We have a variety of domestic advanced manufacturing equipment, including automatic batching and molding lines, 1500 high-temperature tunnel kilns, 1700 shuttle kilns, machining equipment, product firing temperature range from 1200℃ to 1800℃, the current production capacity of 20,000 tons of insulation materials.
The company has the right to import and export agents around the world. Our products not only enjoy a high reputation in the country, but are also exported to Italy, Britain, Spain, South Korea, Japan, India, and other countries and regions by both domestic and foreign customers.
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Industry knowledge expansion

Composition of Heavy High Aluminum Brick

Heavy-duty high alumina bricks are a refractory material that performs well in high-temperature, high-pressure and heavy-load environments. Its unique composition determines its wide application in various industrial fields.
Alumina (Al2O3)
Alumina is one of the main components of heavy-duty high-alumina bricks, usually accounting for the majority of their total mass. Aluminum oxide is an inorganic compound whose high stability and resistance to high temperatures make it an ideal building block for refractory materials. In high-temperature environments, alumina exhibits excellent heat resistance and can maintain the stability of its physical and chemical properties and is not easy to melt or decompose, allowing heavy-duty high-alumina bricks to maintain structural integrity under extreme conditions.
Aluminum silicate (Al2SiO5)
Aluminum silicate is another key ingredient, and its addition effectively enhances the corrosion resistance of heavy-duty high-alumina bricks. Aluminum silicate forms a strong structure at high temperatures and is resistant to acidic and alkaline environments. This makes heavy-duty high-alumina bricks an ideal choice in areas that require extremely high corrosion resistance, such as the chemical industry. They can resist the erosion of various corrosive atmospheres and extend the service life of equipment.
Highly pure raw materials
In addition to alumina and aluminum silicate, the raw materials used in manufacturing heavy-duty high-alumina bricks must be of high purity. This is to ensure that the chemical composition of the bricks is uniform and to avoid the presence of impurities, thus improving the stability and performance of the product. Highly pure raw materials are a critical part of the manufacturing process and directly affect the quality of the final product.
Other Additives: The Secret Weapon for Tuning Performance
During the manufacturing process, in order to further optimize the performance of heavy-duty high-alumina bricks, some other specific compounds are often added as performance-adjusting additives. These additives may include magnesium oxide, calcium oxide, etc. Their addition can change the characteristics of the brick to a certain extent and make it more suitable for specific industrial needs.

Manufacturing process of Heavy High Aluminum Brick

The manufacturing process of heavy-duty high alumina bricks is a precise and complex process that combines high-temperature processes, exquisite technology and strict quality control. Together, these key steps ensure the superior performance of the final product, making it the top refractory material in high temperature, high pressure, and heavy load environments.
Raw material preparation: the choice of materials determines quality
The manufacturing of heavy-duty high-alumina bricks begins with the preparation of raw materials. Highly pure aluminum oxide and aluminum silicate are the main ingredients, and the selection of these raw materials is critical to the quality of the final product. Manufacturers need to ensure the purity and uniform distribution of raw materials to avoid impurities in the product that affect performance.
Mixes and Formulation: Precise Chemical Combinations
Mixing and formulating is one of the key manufacturing stages. At this stage, the raw materials are mixed in precise proportions to ensure an even distribution of the various ingredients in the brick. The accuracy of this step directly affects product performance in subsequent process steps.
Mold design and molding: shaping of shapes
Once the mixture is prepared, next comes mold design and shaping. Advanced mold design is key to ensuring the final product meets strict specifications. Through precision molds, the mixture is formed into the shape of bricks, which include various specifications and sizes required for heavy-duty high-alumina bricks.
Drying: removing moisture to increase density
The shaped bricks need to go through a drying process. This step is designed to remove moisture from the mix while increasing the density of the bricks. The high-temperature drying process is a time-consuming step and ensures that the bricks can stably maintain their shape during the next step of sintering.
High temperature sintering: forming a dense structure
High-temperature sintering is one of the core steps of the manufacturing process. At high temperatures, the bricks undergo chemical reactions and changes in crystal structure, forming a dense and strong structure. This gives the heavy-duty high-alumina bricks excellent fire resistance and mechanical strength, allowing them to maintain structural integrity under extreme conditions.
Quality inspection and packaging: ensuring excellent quality
The final stage of the manufacturing process is quality inspection and packaging. Through strict quality inspection procedures, we ensure that each heavy-duty high-alumina brick meets predetermined standards and specifications. Qualified products are packaged and ready to be shipped to customers, providing reliable fire-resistant solutions for high-temperature environments in various industries.