MICA TUBES
Product Definition:
Mica tube is formed by muscovite paper or phlogopite paper fixed with silicon resin and processed by roll form. It has good dielectric capability and excellent mechanical strength, and often used as the insulating tube form material in all kinds of electric equipment’s, motors, furnaces, electric-arc furnaces, other metallurgy industry equipment’s.
Types
According to mica paper, Mica Tube can be divided into:
- Muscovite mica tube
- Phlogopite mica tube
Availability
- Length: 10mm, 20mm, 50mm, 100mm, 300mm, 500, ……1100mm
- Diameter: 8mm, 10mm, 15mm, 50mm, 100mm, 200mm, ……300mm
- Tolerance standards: : In general, we produce according to the standard of upper tolerance for inner diameter and lower tolerance for outer diameter. On request, we can control tolerances to within 0.2mm
Properties
Excellent high temperature resistance and insulation properties:
High mechanical strength
- Stable chemical properties: Excellent resistance to acid, alkali and oil and good aging resistance
- Tolerance standards: :The product contains no asbestos, and has less smoke and odours, even smokeless and odourless when heating.
Precise dimensions, beautiful shape, smooth inner and outer walls, good roundness and proportionality.
Performance Parameter
| Item | Unit | Muscovite mica tube | Phlogopite mica tube | Test Procedure |
|---|---|---|---|---|
| Mica Paper | Muscovite | Phlogopite | ||
| Mica Content | % | ≈85 | ≈85 | IEC 60371-2 |
| Bond Content | % | ≈15 | ≈15 | IEC 60371-2 |
| Density | g/cm3 | 1.6-2.2 | 1.6-2.2 | IEC 60371-2 |
| Heat Resistance | Continuous Services | ℃ | 500 | 700 | |
|---|---|---|---|---|---|
| Intermittent Services | ℃ | 800 | 1000 | ||
| Heat Loss at 500℃ | % | ﹤1 | ﹤1 | IEC 60371-2 | |
| Heat Loss at 700℃ | % | ﹤2 | ﹤2 | IEC 60371-2 | |
| Dielectric Strength | kV/mm | ﹥1.5 | ﹥1.5 | IEC 60243-1 | |
| Insulation Resistance at 23℃ | Ω·cm | 1016 | 1016 | IEC 60243-1 | |
| Flame Resistance | UL94 V-0 | UL94 V-0 | UL94 |
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