Aluminum Oxide Bubble Thermal Insulating Refractory Brick for Glass Furnace

All of our Extruded Prop, Magnesia Alumina Spinel Brick, High Alumina Brick has reached the premium standard, with well-designed craftsmanship and stable performance. Honesty, quality and reciprocity are the cornerstone of our cooperation. We will meet new customers with products and services, return to old friends and work with you to create a better future. Quality First, and Customer Supreme is our guideline to provide the best service to our customers. We use advanced equipment and instruments to strictly manufacture and test products, pay close attention to the demands of users, and constantly innovate products and 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.

The key to our success is 'Good Product or service High quality, Reasonable Rate and Efficient Service' for Aluminum Oxide Bubble Thermal Insulating Refractory Brick for Glass Furnace. Our company insists on continuous innovation, taking technology as the core and quality as life to satisfy the clients since its establishment. On the basis of not affecting the product performance, we can optimize its product structure and process according to the customer's requirements and promote the progress of the customer's product pre-development.

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