Withstand High Temperature Fireproof Light Weight Mullite Insulation Brick for Kiln Furnace

With the enterprise spirit of 'exploitation and innovation, truth-seeking, pragmatic, unity and hard work, striving to be first-class', our company is constantly forging ahead, striving to develop and grow in the fierce market competition and become a leader in the heavy duty cast iron fire brick, Refractory Ceramics Crucible, ceramic fire blanket for pizza oven industry. Safety is the basis of all effectiveness and efficiency, we must highlight the safety first policy in all aspects of our internal operation. Our requirement for employees is that they should first have the feelings of home and country, and integrate the feelings of loving the party, the country, the family and the enterprise. The company upholds the way of honest management, and we always regard the reputation as the fundamental of enterprise survival and development. Through intensive management, professional team, intelligent system and humanized service, we effectively reduce operation and management costs and better utilize social benefits.

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 adhere to integrity management, pioneering and innovative, and the pursuit of perfection, and strive to make the company a leader in the industry of Withstand High Temperature Fireproof Light Weight Mullite Insulation Brick for Kiln Furnace! We shoulder the burden of entrepreneurship, all employees must set up ideals and beliefs and maintain a good spirit. Our company is committed to creating a fair and just competitive environment for the selection and training of talents, and providing sufficient development space for them through the continuous development of the enterprise.

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