Light qualitative adiabatic firebrickHow to classify? What is the use temperature limits of common product?
Light qualitative adiabatic firebrick belongs to heat-insulating material, it can reduce kiln body to come loose hot, specific power consumption of managing kiln furnace, still can reduce kiln style quality, reduce kiln furnace integrated cost. The main performance characteristics of light simple adiabatic and fireproof stuff has bulk density, porosity, thermal conductance, use temperature and mechanical strength. The heat-insulating material that satisfies each function requirement completely is not much.
The sort of light qualitative adiabatic firebrick is very much, can press different method classification.
1. By use temperature cent is microtherm model (be less than 900 ℃ ) , be like diatomite brick, pearlite brick; In lukewarm model (1000~1200 ℃ ) , brick of if vermiculite, silicon acid is calcic, light qualitative clay, siliceous aluminous fiber; High temperature (> 1200 ℃ above) , if light qualitative tall aluminous brick, alumina is hollow ball.
2. By bulk density cent is second pledge gently (1.0~1.3g/cm3) ; Pledge gently (0.4~1.0g/cm3) and super- pledge gently (0.4g/cm3 is the following) .
3. By production methods cent pledges to join combustible law, bubble law and chemical law.
4. By configuration cent is fiber shape, poriferous shape and grain shape.
5. By quality of a material cent is natural with artifical. Limits of use temperature of common light qualitative adiabatic firebrick sees with main characteristic place issueing a list lists:
| Name | Use temperature / ℃ | Main characteristic |
| Diatomite brick | <900 | Make with natural and poriferous principle, thermal conductance is small, heat proof quality is good |
| Brick of light qualitative clay | 1200 ～ 1400 | Multi-purpose combustible pledges legal system is built, application is wider |
| Brick of Dong Qing stone | 1300 | Heat expands small, be able to bear or endure flake performance is good |
| Brick of light qualitative corundum | ≥ 1600 | Alumina content is high, main component is α - Al2O3, application can fall in reducing atmosphere |
| Light qualitative silica brick | 1220 ～ 1550 | Loading softening point is high, thermal stability is good |
| Calcic feldspathic brick | 1200 ～ 1300 | Bases is 2SiO2 of · of CaO · Al2O3, bulk density is small, be able to bear or endure burst apart performance is good |
| Bubble alumina brick | 1350 ～ 1500 | Bubble law, use at thermal insulation of kiln furnace high temperature |
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