High-Temperature Mica Insulation Sleeves
High-Temperature Mica Insulation Sleeves, made from quality mica and adhesives, provide superior electrical insulation and mechanical strength for electrical equipment
1. Product Introduction
High-Temperature Mica Insulation Sleeves are made from high-quality mica flakes, white mica paper, or gold mica paper, combined with appropriate adhesives (or mica paper bonded to single-sided reinforcement materials). These are processed into rigid tubular insulation materials through bonding and rolling. They offer excellent electrical insulation properties and high mechanical strength, making them suitable for insulating electrode rods or outlet sleeves in various electrical appliances, motors, and electrical furnaces.
2. Product Features
High-Temperature Mica Insulation Sleeves are available in white high-temperature mica and gold high-temperature mica, with temperature resistance ranging from 850°C to 1000°C. Our high-temperature mica insulation sleeves are available in lengths ranging from 10 to 1000 mm and inner diameters from 8 to 300 mm. They are produced with stable quality and can be customized according to user-provided drawings for special specifications (e.g., slotting, bonding, etc.).
Special specifications for high-temperature mica insulation sleeves can be processed according to samples or drawings.
3. Technical Specifications
| No. | Indicator Name | Unit | HP-5 | HP-8 | Testing method |
| 1 | Mica content | % | ca.92 | ca.92 | IEC 371-2 |
| 2 | Adhesive content | % | ca.8 | ca.8 | IEC 371-2 |
| 3 | Density | g/cm2 | 1.8-2.45 | 1.8-2.45 | IEC 371-2 |
| 4 | Temperature Rating | | | | |
| | Under continuous use conditions | ℃ | 500 | 850 | |
| | Under intermittent use conditions | ℃ | 850 | 1050 | |
| 5 | Weight loss at 500°C | % | <1 | <1 | IEC 371-2 |
| Weight loss at 700°C | % | <2 | <2 | IEC 371-2 | |
| 6 | Flexural strength | N/mm2 | >200 | >200 | GB/T5019 |
| 7 | Water absorption rate | % | <1 | <1 | GB/T5019 |
| 8 | Electrical strength | KV/mm | >20 | >20 | IEC 243 |
| 9 | Insulation resistance at 23°C | Ω.cm | 1017 | 1017 | IEC93 |
| | Insulation resistance at 500°C | Ω.cm | 1012 | 1012 | IEC93 |
| 10 | Fire resistance rating | | 94V0 | 94V0 | UL94 |
| 11 | Smoke emission test | s | <4 | <4 | |
