High Alumina Bubble Refractory Brick for Industry Furnace

Over the years, we have established a good reputation in the industry of Zircon Corundum Brick, Industrial Ceramic Shuttle Kiln, Acid Resistant Brick with innovative R&D technology, more efficient manufacturing capabilities and rigorous and pragmatic customer service. Our products with excellent design, excellent quality, reasonable price and perfect service has won the unanimous praise of our customers. We will always adhere to the general keynote of seeking progress in a stable manner and conscientiously implement the new development concept. Our serious and responsible attitude guides our way of doing business and we meet the growing demands of consumers in a resource-limited market.

1.Bubble Alumina Brick Description

Bubble Alumina Brick is a kind of energy-saving heat insulation material of ultra-high temperature material. It is made of alumina hollow ball and alumina powder as the main raw materials, combined with other binders, and fired at a high temperature of 1750 degrees.

Item	Bubble alumina brick			Bubble zirconia brick
	85	90	99	98
Max service temperature	1680°C	1700°C	1800°C	2200°C
Al2O3/%	≥85	≥90	≥99	-
ZrO2/%	-	-	-	≥98
SiO2 /%	≤13	≤8	≤0.2	≤0.2
Fe2O3/%	≤0.2	≤0.2	≤0.2	≤0.2
Bulk density/g.cm3	1.4-1.7	1.4-1.7	1.4-1.7	≤3.0
Cold crushing strength/Mpa	≥12	≥10	≥9	≥8
Refractoriness under load (0.1MPa,0.6%)	≥1650°C	≥1700°C	≥1700°C	≥1700°C
Reheating Linear Change % (1600 °C,3h) ≤	±0.3	±0.3	±0.3	±0.3
Thermal expansion coefficient (Room temp-1300°C)	~7.8	~8.0	~8.6	~9.0
Thermal conductivity w/(m.k)(Average 800°C)	≤0.8	≤1.3	≤1.5	≤0.3

2. Bubble Alumina Brick Feature

1. The temperature can reach above 1750 degrees, and the thermal stability is good.

2. The reheating line has a small change rate and can be used for longer.

3. It has obvious thermal insulation properties and low thermal conductivity

4. Reduce heat dissipation and improve thermal efficiency

3.Bubble Alumina Brick Application

High alumina bubble bricks are suitable for cracking furnaces, hot blast furnaces, heating furnaces, tunnel kilns, crucible furnaces, electric furnaces, and electric furnace linings.

We always regard innovation as our life, and advocate innovation by all staff and in all aspects, and focus on creating the most advanced and high-quality High Alumina Bubble Refractory Brick for Industry Furnace. We dare to meet challenges, innovate to solve transformation problems, and boldly practice industrial restructuring and upgrading. Since its establishment, we have always regarded quality management as the first pursuit goal, carried forward the spirit of hard work, striving for excellence in this industry.

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