• Alumuna Hollow Ball Brick System 1
Alumuna Hollow Ball Brick

Alumuna Hollow Ball Brick

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Specifications

1. High temperature resistance.
2. Good thermal insulation.
3. Professional manufacturer.

Alumina hollow ball brick, Alumina bubble brick , Alumina hollow sphere brick , Hollow alumina sphere bricks  

Alumina hollow ball brick used the alumina hollow ball,corundum powder,and calcined powders mixed at definite proportion as raw material. After mixing, drying, forming, firing at high temperature shuttle kiln made.

Physical and chemical index:

Item

ZYL-84

ZYL-90

ZYA-1.2

ZYA-1.5

ZYA-1.7

Al2O3 %

84

90

98.5

98.5

98.5

Fe2O3 %

0.8

0.5

0.3

0.3

0.3

SiO2 %

15

9

1.0

1.0

1.0

Bulk density, g/m3,

1.5

1.5

1.2

1.5

1.7

Porosity,%,

58

60

62

60

58

CCS,Mpa,

16

15

3

12

15

Thermal conductivity, 1000°C,( W/m.k )

1.2

1.15

0.95

1.05

1.15

0.1Mpa RUL,°C  

1650

1700

1700

1700

1700

Refractoriness,°C  

1800

1800

1800

1800

1800

Characteristic:

1. High temperature resistance.

2. Low thermal conductivity.

3. Good thermal insulation.

4. High strength.

5. Can direct contact with flame.

6. Good chemical stability (acid-base erosion resistance ).

7. Low bulk density (lighter than the same kind of material ,thin kiln wall, low cost ) .

Q:Can insulating fire bricks be used in the construction of ovens or kilns for pottery?
Yes, insulating fire bricks can be used in the construction of ovens or kilns for pottery. These bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for creating a stable and efficient heat environment required for pottery firing.
Q:Are insulating fire bricks resistant to spalling?
Insulating fire bricks exhibit resistance to spalling. These bricks are specially engineered to endure elevated temperatures and thermal shock, rendering them highly immune to spalling. Spalling indicates the fracturing and fracturing of bricks owing to exposure to extreme heat. Composed of superior refractory materials with low thermal conductivity, insulating fire bricks restrict heat transmission and diminish spalling hazards. Moreover, these bricks boast a remarkable melting point, rendering them excellently suited for applications demanding high temperatures. Consequently, insulating fire bricks find widespread application in furnaces, kilns, and other environments characterized by elevated temperatures, where spalling poses a significant concern.
Q:Can insulating fire bricks be used in electric arc furnaces?
Insulating fire bricks are capable of being used in electric arc furnaces. Constructed from lightweight materials possessing excellent insulation capabilities, these bricks are well-suited for scenarios necessitating heat insulation. Due to the high temperatures generated by electric arc furnaces, effective insulation is imperative to confine the heat within the furnace chamber. The insulating fire bricks are able to endure the extreme heat emitted by these furnaces, thus averting heat loss and conserving energy. Furthermore, their insulating properties contribute to maintaining a steady temperature inside the furnace, ensuring the efficient melting and refining of metals or other materials. Consequently, insulating fire bricks present a suitable option for implementation in electric arc furnaces.
Q:Do insulating fire bricks require any maintenance?
Insulating fire bricks, also known as refractory bricks, are designed to withstand high temperatures and provide excellent insulation properties. One of the advantages of insulating fire bricks is that they require very little maintenance. These bricks are made from special materials that have high resistance to heat and thermal shock. As a result, they do not crack or break easily, reducing the need for frequent repairs or replacements. However, like any other material, insulating fire bricks can accumulate dust or debris over time. Regular cleaning is recommended to maintain their effectiveness and prolong their lifespan. This can be done by using a soft brush or vacuum cleaner to remove any loose particles. In addition, it is important to inspect the bricks periodically for any signs of damage, such as cracks or erosion. If any issues are identified, they should be addressed promptly to prevent further deterioration. Overall, while insulating fire bricks do not require extensive maintenance, regular cleaning and inspection are essential to ensure their optimal performance and longevity.
Q:Do insulating fire bricks have a low density?
Yes, insulating fire bricks have a low density compared to other types of bricks. These bricks are designed to have a porous structure, which helps in reducing heat transfer and increasing insulation properties. The low density of insulating fire bricks allows them to provide effective thermal insulation while also being lightweight. This makes them suitable for various applications where heat retention and energy efficiency are important, such as in kilns, furnaces, and fireplaces.
Q:Can insulating fire bricks be used in the construction of reheat furnaces?
Yes, insulating fire bricks can be used in the construction of reheat furnaces. These bricks are designed to withstand high temperatures and provide excellent insulation, making them ideal for use in furnaces. Insulating fire bricks have a low thermal conductivity, which helps to reduce heat loss and improve energy efficiency in the furnace. Additionally, they have high resistance to thermal shock, allowing them to withstand rapid temperature changes that occur during the reheat process. Overall, insulating fire bricks are a suitable choice for the construction of reheat furnaces, as they contribute to better heat retention and energy savings.
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 firebrick mortar for installation?
Indeed, the installation of insulating fire bricks necessitates the utilization of a specialized firebrick mortar. Regular mortar is unsuitable due to its inability to furnish the essential thermal insulation characteristics or endure the elevated temperatures for which these bricks are intended. Insulating firebrick mortar is purposefully engineered to withstand extreme temperatures and effectively adhere to insulating fire bricks. Typically, this mortar is concocted from an amalgamation of refractory materials, including high-alumina cement, silica sand, and fire clay. Employing the appropriate firebrick mortar is imperative to guarantee a robust and long-lasting installation of insulating fire bricks.
Q:Do insulating fire bricks have a high heat storage capacity?
Yes, insulating fire bricks have a high heat storage capacity. Insulating fire bricks are specifically designed to have low thermal conductivity, which means they are able to retain heat for longer periods of time. This makes them ideal for applications where heat storage is necessary, such as in furnaces, kilns, and other high-temperature environments. The high heat storage capacity of insulating fire bricks allows for efficient heat retention and distribution, ultimately improving energy efficiency and reducing heat loss.
Q:What is the density of insulating fire bricks?
The density of insulating fire bricks typically ranges from 0.6 to 1.2 grams per cubic centimeter.

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