MachineU > China Products > Chemicals > Inorganic Chemicals > Non-Metallic Products > Refractory
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
Specifications
Place of Origin :
China
Shape :
Block
Material :
alpha beta alumina oxide
SiO2 Content (%) :
0.5%
Al2O3 Content (%) :
94%
CaO Content (%) :
0.5%
Refractoriness (Degree) :
Super-Class (Refractoriness> 2000°)
Model Number :
a-b 94
Brand Name :
HT
Product name :
Alpha Beta block
Size :
Size Customized
Color :
White
Usage :
Glass furnace/kiln
Al2O3 :
94%
Na2O :
4%
Cold Crush Strength :
200MPa
Apparent Porosity :
2%
HS code :
69022000
Bulk density g/cm3 :
3.1-3.3
MOQ :
2 metric tons
Price :
$8,000.00/metric tons >=2 metric tons
Description

Glass industry furnace use erosion-resistant Alpha Beta fused alumina brick for forehearth

Product Description

Description of Fused alumina brick

Fused alumina brick is made by melting alumina in an electric arc furnace and casting them into a model of a specified specific shape, annealing and heat preservation, and then processing diamond abrasive tools to obtain the desired product.

Fused alumina brick also called fused corundum blocks mainly refer to fused a, β corundum and fused β corundum blocks. It is mainly composed of 92% to 94% AL2O3 corundum crystal phase, with a density of 2.9 to 3.05g/cm3 . The highest operating temperature is around 1700℃. Fused alumina has very good resistance to glass leakage and hardly pollutes the glass liquid. It is widely used in the working part tank wall, tank bottom, flow channel, working part forehearth tank wall, forehearth tank bottom, etc. of the glass melting furnace that are in contact with the glass liquid and are required to be free of refractory material contamination.

Classification of of Fused alumina brick
This product is divided into 3 types according to the different crystal forms and quantity of alumina. The first type is α-Al2O3 as the main crystal phase, called α alumina brick; the second type is α-Al2O3 and β-Al2O3 The main crystal phase, the content is basically 1:1, the α phase content is slightly higher, called α-β alumina brick; the third type is mainly β-Al2O3 crystal phase, called β alumina brick.
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
Product Features

Glass industry furnace use erosion-resistant Alpha Beta fused alumina brick for forehearth

The fused alumina brick has good high temperature volume stability and corrosion resistance.

The structure of α-Al2O3 Fused alumina brick is dense and has certain resistance to glass melt erosion and erosion resistance.
β-Al2O3 Fused alumina brick contain almost no glass phase, basically no shrinkage cavity, good thermal shock resistance, and high temperature resistance to alkali vapor stability.
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
α-β Al2O3 Fused alumina brick have the characteristics of α-Al2O3 and β-Al2O3 Fused alumina brick. The main crystal phases are directly combined, and the composition contains only a small amount of glass phase. The crystal structure is compact, the porosity is low, the high temperature wear resistance is good, the mechanical strength is high, and it has good high temperature resistance to alkali vapor stability.
For Fused alumina brick, the viscosity of the nepheline metamorphic layer generated on its surface in the glass liquid is not as high as that of the nepheline metamorphic layer containing ZrO2. It is relatively easy to melt, so its corrosion resistance at high temperatures is not as good as that of fused AZS blocks. However, the greater the difference in viscosity between the debris flowing into the glass liquid and the glass liquid, the more difficult it is to dissolve and eliminate. The nepheline metamorphic layer of alumina blocks has a small viscosity and is easily soluble in the glass liquid, so the pollution to the glass liquid is small.
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
Specifications

Specifications of Glass industry furnace use erosion-resistant Alpha Beta fused alumina brick for forehearth

Grade α-β Fused Cast Alumina Block
Chemical Composition (%)
Al2O3 ≥ 94
Na2O ≤ 4
SiO2+Fe2O3+CaO+TiO2 ≤ 2
Phase Composition (%)
Glass Phase ≤ 1
α-Corundum ≥ 44
β-Corundum ≥ 55
Physical Performance
Cold Crushing Strength (Mpa) ≥ 200
1300℃ Hot Crushing Strength (Mpa) ≥ 150
Apparent Porosity (%) ≤ 2
Refractoriness Under Load(0.2Mpa, T0.6) (℃) ≥ 1800
1350℃ Linear Thermal Expansion ≤ 1%
Bulk Density (g/cm3) Void-Free casting ≥ 3.2
Product Applications

Glass industry furnace use erosion-resistant Alpha Beta fused alumina brick for forehearth

β-Al2O3 fused cast blocks are suitable for the upper structure of the working pool of the glass melting furnace and the combustion port at the back of the melting zone and the breast wall and small furnace flats nearby. The composition of α, β-Al2O3 fused cast blocks contains only a small amount of glass phase, which will not ooze out and pollute the glass melt during use. It is ideal for the cooling part of the glass melting furnace, the bottom of the furnace, and the float glass furnace launder. Furnace building materials, usually used parts are stout brick, lip brick, gate brick.
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
Why choose Us

2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry

1. Strong professional:
Our company has thirty years producing experience in refractory products. Our manager will supervise on a various refractorys production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.


2.Annual supply:
Our company has passed ISO9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28, 800-35, 000 tons.


3. Export experiences:
Now we have gained a global sales network reaching Taiwan, Russia, Vietnam, Pakistan, Bulgaria, French, India, Congo, Angola, South Africa, and so on.


4. Production equipment:
Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing.


5. Testing equipment:
Our company's testing equipments as follows:
High Temperature RUL Tester
Bulk Density Tester
The Pressure Tester
Refractoriness Tester

Certificates

2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry

Packaging & Shipping

Packing of Glass industry furnace use erosion-resistant Alpha Beta fused alumina brick for forehearth

1.on wooden pallets with plastic cover: wooden pallet size :930*930 or 1000*1000mm,
2.Load weight of each pallet: 1.5-2.0 tons.

2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry

Shipping of Glass industry furnace use erosion-resistant Alpha Beta fused alumina brick for forehearth

1.Our packaging is as per customer’s request
2.Normal goods delivered by sea transport
3.Sample shipping by express
4.We will shipping and delivery goods timely, quanlity and quantity guaranteed, and also in accordance with the contract and customer's requirment completely.

2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry

Customer visit

2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry

Contact us

Mobile Phone:+8618037198058
WeChat / Whatsapp / Skype: +8618037198058
E-mail: sales03(at)firebricks-supplies.com

Send your message to this supplier
Send Now

2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry

Ask Latest Price
Watch Video
Product Detail
Place of Origin :
China
Shape :
Block
Material :
alpha beta alumina oxide
SiO2 Content (%) :
0.5%
Al2O3 Content (%) :
94%
CaO Content (%) :
0.5%
Contact Supplier
video
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry
2% Apparent Porosity Alpha Beta Fused Alumina Brick for Forehearth in Glass Industry

Henan Hongtai Kiln Refractory Co.,Ltd.

Verified Supplier
1 Years
henan, zhengzhou
Since 2012
Business Type :
Manufacturer
Main Products :
High Alumina Brick, AZS Refractory Bricks, Fire Clay Brick
Total Annual :
10000000-50000000
Employee Number :
100~200
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Refractory For Glass Furnace
MachineU China Products Chemicals Inorganic Chemicals Non-Metallic Products Refractory
Contact Supplier
Submit Requirement