Polycrystalline Mullite Fiber Special Shaped Products is a kind of hard fiber products using the polycrystalline mullite bulk fiber as raw materials, processed by filter pressing through wet-processing vacuum. Its volume weight ranges from 300 to 600 kg/m2. It is fit to electrical resistance furnace’s whole flue, mosaic circuit board, all kinds of high-temperature kiln’s bricklaying, hanging and anchor of the furnace top, fireguard in the furnace, thermal insulation sheet of interlayer and joint, etc.
Technical Index
Chemical Composition | AL2O3:72-74% AL2O3+SiO2:~99.6% | |
Main Phase | Mullite | |
Fiber Diameter | 2-3.8μm | |
Specific Surface Area | 35.5M²/g(1000℃) | |
Reheating Shrinkage | ~2.0%(1500℃*6hr) | |
Volume Weight | 300-600kg/M³ | |
Use Temperature | 1700℃ | |
Thermal Conductivity(w/m.℃) | 1000℃ | 0.16-0.17 |
1250℃ | 0.22-0.24 | |
1350℃ | 0.25-0.27 | |
Specification | Customize according to the requirements | |
Note:
1. Data are average results of standard tests which are subject to variation, don't show the guarantee data of product quality because of fluctuating within certain range.
2. The size is also can be designed according to the clients’ requirement.
Technical Index
Chemical Composition | AL2O3:72-74% AL2O3+SiO2:~99.6% |
Main Phase | Mullite |
Fiber Diameter | 2-3.8μm |
Specific Surface Area | 35.5M²/g(1000℃) |
Reheating Shrinkage | ~1.0%(1500℃*6hr) |
Volume Weight | 60-100kg/M³ |
Use Temperature | 1600℃ |
Characteristics
Low thermal conductivity
Low heat capacity
Thermal shock resistance
Excellent chemical stability
Does not contain any binder and other corrosive substances
Still loose, pliable and has good elasticity under high temperature
Application
1. As basic material, can be used as raw material of fiber deep processing products such as board, paper, vacuum forming parts
2. Expansion joints or short-term insulation repair filling material
3. Thermal insulation of concrete and composite materials
