189-6203-8246
The main products are contents:mullite light-weight brick，high-temperature bonder and indeterminate from fireproofing material etc.
classification
Application:
Used for lining heat-protection material of industrial furnaces in industries such as metallurgy, petrochemical, magnetic materials, powder metallurgy, machinery and electron. etc
Feature:
Add composite binding agent based on the host materials alumina hollow ball and a-Al203, vibration and pressurization for molding, it is of high temperature of load soften-ing, small vibration burning wire, which is the ideal lining material of industrial furnace below 1800C
Physical and chemical indicators:
| Name of commodity Performance and index |
Alumina hollow ball product | Alumina insu lat ing brick | ||
| Bulk density （℃） | 1．2—1．5 | 1 | 1.2 | |
| Compressive strength at ambient temp Mpa | 10 | 4 | 5 | |
| Linear change on reheating ℃×hr ％ ≤ | 1800×40.3 | 1650×60.4 | 1650×60.3 | |
| Apparent porosity ％ | 60-70 | |||
| A12O3％ ≥ | 98.5 | 88 | 92 | |
| SiO2％ ≤ | 0.2 | |||
| Fe2O3 ％ ≤ | 0.1 | 0.4 | 0.4 | |
| Heat conductivity≤350±20℃w／m.k | 0.6-0.9 | 0.5 | 0.65 | |
| Highest use temp ℃ | 1800 | 1500 | 1550 | |
| Load softening temp ℃ | 1750 | |||
| Heat shock stability ℃／times | 1100 Air cooling＞20 | |||
The actual parameters can be adjusted according to the requirements of users.