Composition:SiO2 + Al2O3 Application:Insulation layer for various kinds of industrial furnaces Capacity:500 tons per month Color:Light grey or white or light yellow Size:As your requirements Raw Material:Bauxite & clay

Product Introduction

High alumina insulation brick refers to all lightweight bricks with AL2O3 more than 45%. It is made of bauxite and a small amount of clay. After grinding, it is poured into a slurry form by gas or foam. It burns at a temperature of 1300~1500℃. This kind of brick is not directly exposed to the high temperature in the kiln, but only has a thermal insulation layer near the kiln wall.

Features

1.High purity. 2.Good heat insulation. 3.High Strength. 4.Low Thermal Conductivity.

Application

High alumina insulation bricks are mainly used for heat insulation. In normal use, the kiln temperature is not directly contacted, and it is a kind of refractory brick product which is close to the furnace wall and has heat insulation and heat preservation effect. It can also be used in kilns with hydrogen, carbon monoxide and other gases as a protective atmosphere.

Item	High Aluminum Insulation Brick
	LG-0.6	LG-0.8	LG-1.0	LG-1.3
Al2O3%  >=	45	48	48	48
Fe2O3%  <=	2.0	2.0	2.0	2.0
Bulk Density(g/cm³)  <=	0.6	0.8	1.0	1.3
Crushing Strength(Mpa)  >=	1.8	2.5	3.0	5.0
Linear Change on Reheating 2% (℃*h)  <=	1200℃*12h	1250℃*12h	1300℃*12h	1350℃*12h
Thermal Conductivity (w/m.k,{350±25℃})  <=	0.25	0.32	0.45	0.55
Max Service Temperature(℃)  >=	1250	1250	1300	1350