Tunnel Kiln Mullite Refractory Material With Uniform Expansion
Tunnel Kiln Sintered Mullite 47% 60% 70% For High Temperature Heat Preservation And Heat Insulation Equipment
1. Natural Sintered Mullite Introduction
Mullite is a high-quality refractory material.Mullite is a mineral produced by aluminosilicate at high temperature. Mullite is formed when aluminosilicate is heated artificially.
2. Natural Sintered Mullite Specifications
CHEMICAL PERFORMANCE INDEX
| Chemicals | M80 | M70 | M60 | M47 |
| Al2O3 % | 78-82 | 68-72 | 58-62 | 46-50 |
| Fe2O3 % | 1.6max | 1.5max | 1.5max | 1.5max |
| TiO2 % | 2.50max | 2.50max | 2.50max | 1.0max |
| SiO2% | 12-15 | 22-25 | 35-38 | 44-54 |
PHYSICAL PERFORMANCE INDEX
| Properties | M80 | M70 | M60 | M47 |
| B.D. g/cm3 | 2.85min | 2.75min | 2.65min | 2.58min |
| Water Absorption % | 3max | 3max | 3max | 3max |
| Refractoriness ℃ | 1850min | 1850min | 1850min | 1750min |
3. Natural Sintered Mullite General Advantages
1. Good thermal shock resistance.
2. High-temperature creep is small.
3. Load softening temperature is high.
4. High mullite phase.
5. Volume density high, high hardness.
6. Uniform expansion.
7. Low porosity and High refractoriness.
4. Natural Sintered Mullite Characteristics
- High refractoriness.
- Physicochemical stability.
- Bulk density high.
- Low porosity and Low water absorption.
- Fully calcined.
5. Natural Sintered Mullite Applications
Mullite are suitable for all kinds of flame furnace lining work, direct contact information with the flame (not contact information melt), other high temperature heat preservation and heat insulation equipment, such as:
1. The preparation of various lightweight refractory castable, spray coating, etc.;
2. Heating furnace, soaking furnace, heat treatment furnace, annealing furnace, ceramic, refractory products sintering furnace, the furnace wall;
3. Steam boiler, oil industry tube furnace, ethane cracking furnace lining;
6. Natural Sintered Mullite Particle sizes Available
Size of powder: -200mesh,-270mesh,-325mesh.
Size of particle: 0-1mm,1-3mm,3-5mm,5-8mm, 8-15mm, 0-5mm or as required.
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