Light Weight Insulating Fire Bricks for Kiln

We have many years of practical operating experience, and established a complete quality assurance system runs through the entire process of manufacturing the Refractory Plastic, Refractory Bauxite, Cordierite Mullite Plate. We implement the concept of green development and strive to build a resource-saving and environment-friendly enterprise. Following the sales and management philosophy of "Winning Customers with Honesty and Building Confidence with Quality", the company's performance is thriving. Scientific and technological research and development has become a key factor for our company to occupy a dominant position in the international competition.

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.

What we pursue is to provide Light Weight Insulating Fire Bricks for Kiln with world leading level and related quality services to our customers. We have a scientific and reasonable production technology process, and strictly control each process to protect the quality of products. We try our best to build the scientific management model, to learn abundant experienced knowledge, to develop advanced production equipment and production process, to create the first-call quality goods, reasonable price, high quality of service, quick delivery, to present you create new value.

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