Alumina Bubble Insulating Refractory Bricks for Glass Furnace

In the midst of a fierce competitive market environment, our Refractory Cement, Mullite Brick, Silica Mullite Brick is competitive with a certain brand effect. We tell the truth and do practical things. Technological innovation can enhance our product advantages and relative price advantages by improving the use of elements, saving operating costs and improving the quality of original products, so as to enhance our export competitiveness. We are committed to bringing economic and social returns to investors and achieving win-win results for both sides. We hope that our company will improve its ability and level of fulfilling social responsibilities while achieving sustainable business development.

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 purpose to create a lot more price for our prospects with our rich resources, innovative machinery, experienced workers and great products and services for OEM Manufacturer for Alumina Bubble Insulating Refractory Bricks for Glass Furnace. We have established a mechanism to develop, train and reserve talents from within the enterprise, thus effectively avoiding the risks caused by personnel turnover. Development means to continuously break through the bottleneck and cross the peak with continuous execution, so as to achieve the healthy and rapid growth of the company and individuals.

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