Zirconia and Alumina Bubble Insulating Mullite Refractory Brick
The Description:
Alumina hollow brick, the English name is Aluminabubble brick and products, is made of alumina hollow ball and aluminum oxide powder as the main raw materials, combined with other bonding agents, after 1750 degrees of high temperature fired. It is a kind of energy-saving insulation material of ultra-high temperature material.
The Physical and Chemical Index of Bubble Zirconia and Bubble Alumina Insulating Mullite Refractory Brick
| Item |
Bubble Al2O3 |
Bubble ZrO2 Brick |
| BA-85 |
BA-90 |
BA-99 |
BZ-98 |
| Max service temperatureºC |
1680 |
1700 |
1800 |
2200 |
| Al2O3 % |
85 |
90 |
99 |
--- |
| ZrO2 ≤ |
--- |
--- |
--- |
≥98 |
| SiO2 ≤ |
13 |
8 |
0.2 |
0.2 |
| Fe2O3 ≤ |
0.2 |
0.2 |
0.2 |
0.2 |
| Density kg/m3 |
1.4-1.7 |
1.4-1.7 |
1.4-1.7 |
≤3.0 |
| CCS Mpa |
12 |
10 |
9 |
8 |
| RUL ºC ≥ |
1650 |
1700 |
1700 |
1700 |
| PLC 1600ºC*3h |
±0.3 |
±0.3 |
±0.3 |
±0.2 |
| Thermal expansion%≤ |
7.8 |
8 |
8.6 |
9.1 |
| Thermal conductivity(w/mk) |
0.8 |
1.3 |
1.5 |
0.3 |
Product feature:
1, high use temperature:
It can reach more than 1750 degrees and has good thermal stability. Small change rate of heavy burn wire, longer use.
2, optimize the structure, reduce the weight of the furnace body:
Now the high-temperature resistant materials are heavy bricks with a volume density of 2.6-3.0g/cm, while alumina hollow ball bricks are only 1.1-1.5g /cm, the same cubic meter volume, the use of alumina hollow ball bricks can reduce the weight of 1.1-1.9 tons.
3. Save materials:
To achieve the same use temperature, such as the use of heavy brick and alumina hollow brick price is comparable, but also need considerable insulation layer refractory. If the use of alumina hollow ball bricks, per cubic meter can save 1.1-1.9 tons of heavy brick use, but also save 80% of the refractory insulation material.
4. Save energy:
Alumina hollow ball has obvious thermal insulation characteristics, low thermal conductivity, can play a good thermal insulation effect, reduce heat dissipation, improve thermal efficiency, so as to save energy. The energy saving effect can reach more than 30%.
Company main products and profile:
Why choose us?
Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity
Contract Kiln Construction
FAQ
1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China
2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate
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