1800 C Degree High Temperature Refractory Alumina Bubble Insulation Brick for Kiln

The excellent performance of our perlite refractory mix, Silicon Carbide Ceramic Plate, Pizza Plate and high-level design capabilities of our team show our obvious advantages over competitors. We respect the equal rights of our employees and will try our best to provide development opportunities for all competent employees. We continue to improve the quality of our operations, solidify our management foundation, optimize our product structure, and improve our industrial layout.

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.

With the advanced technology and production experience in 1800 C Degree High Temperature Refractory Alumina Bubble Insulation Brick for Kiln industry, we can provide many companies with new products and services in the industry trend. As a highly innovative high-tech enterprise, we always insist on creating value for customers through continuous innovation. Our company insists on improving financial management, improving profitability, and promoting scientific and technological innovation and equipment upgrading, so as to enhance its own strength.

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