High Performance Thermal Insulation WDS®
WDS® differs from conventional thermal insulation with complete control of heat transfer including solid heat transmission, air molecule motion and infrared transmission,
achieving a better low thermal conductivity than still air.
Demonstrating better thermal insulation performance than other thermal insulation, it contributes to creating of smaller, lighter energy-saving devices.
Heat transition characteristics
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- 1. Solid heat transition
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WDS® molded fumed silica (5 to 30nm/ball)
- ・Low inherent thermal conductivity
- ・Small heat transition pathway due to point contact of granules
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- 2. Gaseous heat transition
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Air molecule motion restricted by enclosure in 100nm or smaller micro pores
- ・Molecular impact prevented by heat transition restriction
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- 3. Infrared radiation
- Restriction of heat transition by infrared through adding infrared absorbent material
Thermal conductivity for WDS® and other kinds of thermal insulation
Main characteristics
Cover example
(Stainless Steel cover)
| Thermal Conductivity | (W/m・K) | 200℃ | 0.022 |
|---|---|---|---|
| 400℃ | 0.027 | ||
| 600℃ | 0.034 | ||
| 800℃ | 0.044 | ||
| Bulk Density | (g/cm3) | 230±10％ | |
| Notes |
Contact with fluid has a significant negative impact on performance. Covering it can reduce the impact of fluids. |
※Values are for WDS® ULTRA.
Hard panel
| Product Name | ULTRA | HIGH | ||
|---|---|---|---|---|
| Chemical Composition | (%) | SiO2 | 75-85 | 60-70 |
| SiC | 12-20 | - | ||
| ZrSiO4 | - | 25-35 | ||
| Other | 3-10 | 3-10 | ||
| Max. working temperature | (℃) | 950 | 1050 | |
| Insulating resistance | (MΩ) | >2000 | ||
| Remarks |
Supports machining of complex shapes and covering with other materials. ※Consult with us for the shape and covering method. |
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Flexible panel
| Product Name | Lambdaflex Super | Lambdaflex | ||
|---|---|---|---|---|
| Chemical Composition | (%) | SiO2 | 40-50 | 45-55 |
| ZrSiO4 | 25-35 | 43-53 | ||
| Al2O3 | 20-30 | - | ||
| Other | 3 | 3 | ||
| Max. working temperature | (℃) | 1050 | 1000 | |
| Insulating resistance | (MΩ) | >2000 | ||
| Remarks |
Supports cutting machining and covering with various kinds of materials. ※Consult with us regarding machining, installation and covering methods. |
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※Each property presented is a representative value, not a guarantee value.
※Some or all of the physical properties are subject to change without notice.
