Insulating Alumina Bubble Bricks for Glass Furnace

The production cycle of the Mullite Brick, Refractory Bricks, Ceramic Fiber Bulk is short. As long as you place an order, we will process and transport the goods to you in the shortest time. Despite the changeable global economic situation, we will continue to unswervingly push forward the strategy of sustainable development. Our company always insists on continuous innovation, honesty based, customer first business philosophy, will continue to apply new technology, new technology and new materials. Our company will, as always, take science and technology as the guide, quality management as the basis, laws and regulations as the guarantee, and customer satisfaction as the standard to produce products that satisfy customers.

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.

After years of development, our products have been trusted by customers. The quality of Insulating Alumina Bubble Bricks for Glass Furnace is reliable, and it is in a favorable position among domestic counterparts. Real business is to get win-win situation, if possible, we would like to deliver more support for customers. Our company provides the more perfect service for you with the better quality, the higher efficiency, lets your each minute investment obtain the reasonable return.

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