Insulation Alumina Ball Al2O3 Hollow Lightweight Refractory Bubble Brick

According to our market strategy, we constantly introduce new Refractory Castable, Corundum Brick, Refractory Cement to improve product quality and service. Our company has been adhering to: military management, school training, family relationship, strive to create excellent and personalized corporate culture brand and gradually form a high intelligent organization with core competitiveness of talents. We adhere to the spirit of 'innovation, focus, collaboration, and enterprising', and insist on serving customers with advanced technology, high-quality c, good reputation and professional services.

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.

As a responsible manufacturer of Insulation Alumina Ball Al2O3 Hollow Lightweight Refractory Bubble Brick and a valuable partner, we have always acted in a prudent and professional manner and have built our image with concrete actions. In the spirit of innovation and improvement, we make persistent efforts to provide better service for customers at home and abroad with innovative technology, professional knowledge, accurate information and thoughtful service. We are looking for long-term business partnerships, and ensure our suppliers that they will absolutely benefit in both short and long run.

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