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Mica Tube
1.????? Product Introduction
The rigid mica tube is made by high grade thin mica plate, white mica paper or phlogopite mica paper with the silicone resin which has the excellent mechanical strength and electrical properties.
It is used as supporting insulation for electrode bar or bushing line in motors, electric smelt metal oven and so on.
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2.????? Technique Datas
Type | HP5M-2 | HP5P-2 | Test method |
Mica content % | 90% | 90% | IEC371 |
Bond content % | 10% | 10% | IEC371 |
Density g/m3 | 2.15 | 2.15 | IEC371 |
Continuous heat resistance ℃ | 550 | 750 | ? |
Continuous heat resistance ℃ | 800 | 1000 | ? |
Flexural strength N/mm2 | >200 | >150 | GB/T5019 |
Water absorption % | <0.5 | <0.5 | GB/T5019 |
Dielectric strength kv/mm | >20 | >20 | IEC243 |
Anti resistance 23℃ohm.cn | >1017 | >1017 | IEC93 |
Anti resistance 500℃ohm.cn | >1012 | >1012 | IEC93 |
Heat loss at 500℃ % | <1% | <1% | IEC371 |
Heat loss at 700℃ % | ? | <2% | IEC371 |
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3.????? Diameter Deviation(mm)
Standard inner diameter | Inner diameter deviation | Outside diameter deviation |
<10mm | ±0.3mm | ±0.4mm |
10-20mm | ±0.4mm | ±0.5mm |
21-50mm | ±0.5mm | ±0.7mm |
51-100mm | ±0.6mm | ±1.0mm |
101-200mm | ±0.8mm | ±1.2mm |
201-300mm | ±1.0mm | ±1.5mm |
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