Product Introduction
High-alumina insulation bricks usually have a higher refractory temperature and can withstand high temperature environments. The refractory temperature of some products can reach 1600 degrees or even higher.
It also has good thermal insulation performance, high porosity, good thermal insulation effect, can effectively reduce heat diffusion, and protect the furnace temperature uniformity.
Rongsheng can produce insulation bricks of different strength grades according to customers’ specific needs.
Technical Data
| Model | LG-1.2 | LG-1.0 | LG-0.9 | LG-0.8 | LG-0.7 | LG-0.6 | LG-0.5 |
| Al2O3,% ≥ | 48 | ||||||
| Fe2O3,% ≤ | 2 | ||||||
| Bulk Density（g/cm3） ≤ | 1.2 | 1 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 |
| Cold Crushing Strength Mpa ≥ | 5 | 3.92 | 3.43 | 2.94 | 2.45 | 1.96 | 1.47 |
| Thermal Conductivity (350℃)W/m.K ≤ | 0.55 | 0.5 | 0.45 | 0.35 | 0.35 | 0.3 | 0.25 |
| Temp reheating shrinkage 2.0% ℃ ≥ | 1400 | 1400 | 1400 | 1400 | 1350 | 1350 | 1250 |
Application
● High-alumina insulation bricks are mainly used to build the insulation layer and thermal insulation layer of high-temperature kilns, such as pyrolysis furnaces, hot air furnaces, ceramic roller kilns, and the lining of various industrial resistance furnaces.
● It is also suitable for industrial fields that require high-temperature insulation and heat insulation, such as metallurgy, chemical industry, glass, etc.