Insulation Refractory Magnesia Chrome Brick for High Temperature Kiln

With perfect technology, high quality and superior performance, our company is in the forefront of the same industry, and has become one of the most powerful manufacturers in the electric aluminum melting furnace, kiln furniture for tiles, refractory adhesive plaster industry. We firmly believe that as long as we are guided by the market, driven by innovation, and survived by quality, we will have a bright future. We are in line with the business philosophy of "pursuit of unlimited quality, perfect service to forever", to create brand-name products that businesses are satisfied with and customers are eager for.

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.

Facing new challenges in the future market, all our employees will continue to carry forward a professional, efficient, enthusiastic and thoughtful work style, and provide customers with reliable and high-quality Insulation Refractory Magnesia Chrome Brick for High Temperature Kiln and timely services. We base on fine quality and regard quality as the life of our company. Since our products have been put on the market, we have achieved excellent cost performance with the comprehensive advantages of quality, service and price, and are in the leading position among peer brands. We have an automatic production line, which is a leading level in the same industry. Our products have a complete variety, novel styles, quality and quantity, and are deeply welcomed by our customers.

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