Mica Products
Moulding Mica Sheet
Moulding mica sheet is made of mica splitting. Mica splittings bound with various adhesive ( resin ) and form rigid sheet after heat-pressed.
Hot moulding mica sheets keep rigid at room temperature, but can be formed to any desired shape at temperature of 110±5℃(5250) 130±5℃(5252) after being treated for 15 minutes. It is applied in electrical machinery and appliances of class B, F, H, as insulation parts. Low resin content moulding mica sheet is suitable for traction motors and hoist motors, or as insulation parts of electrical machinery with higher rotating speed.
| Index | Unit | 5231 | 5236 | 5250 | 5252 |
| Thickness range | mm | 0.15 - 1.20 | 0.15 - 1.20 | 0.15 - 1.20 | 0.20 - 0.30 |
| Mica content | % | 75 ~ 85 | 85 ~ 92 | 75 ~ 85 | 75 ~ 85 |
| Resin | shellac | shellac | silicone | maleic | |
| Resin content | % | 15 ~ 25 | 8 ~ 15 | 15 ~ 25 | 15 ~ 25 |
| Dielectric strength | kV/mm | ≥35 (0.15mm-0.25mm) ≥30 (0.30mm-0.50mm) ≥25 (0.60mm-1.20mm) |
|||
| Standard | - | JB/T7099-93 | - | ||
