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Unburned Phosphate Brick is produced with selected bauxite chamotte by advanced process and strict quality control.It's chemical characteristic tend to neutral .its capability of acid-fast erosion of acid slag or alkaline slag is better than clay brick and silicon brick.
Characteristics:
1.Good erosion resistance 2.Good thermal shock resistance 3.Good wear resistance
4.High cold crushing strength
5.Excellent high temperature mechanics and chemical corrosion resistance.
6.Refractoriness under load is normally around 1420°c-1530°c which is better than fireclay brick and silica brick.
Tech Data.
Items | NMZ-1 | NMZ-2 | NMZ-3 |
Al2O3% | >60 | >70 | >80 |
Normal temperature crushing strength(Mpa) | >65 | >75 | >125 |
Normal temperature rupture strength(Mpa) | >10 | >12 | >17 |
Thermal shock resistance(times)(900°Cwater cooling) | 20 | 25 | 50 |
Wear resistance(ASTMc-704) | 9 | 8 | 6 |
Heat conductivity coefficient(1000°C) W/m.k | 1.5 | 15 | 1.5 |
Max working temperature °C | 1400 | 1500 | 1600 |
Performance of application | High strength in medium temperature,stable bulk in high temperature,wear resistance,slag erosion resistance. | ||