5536-1(P9) epoxy mica sheet for commutaor
5536-1(P9) epoxy mica sheet for commutaor
This product is made up of mica paper and coated expoxy polyimide adhesion agent by toast,hot pressure,process.
With high mechanic intensity and good homogeneous thickness,and also with excellent electrical performance,under the high temperature and high pressur.It has high adhesive intensity and good comprehensiveness and punching shear.
This product with bearing high temperature B level si suitable for B level 130℃ direct current motor commutator's insulation between coppers,insulation between value sheet of arrestor and the insulation between the common electric thermo appilance.
Technical condition(carrying out GB/T5021-2002)refer to the list...
| No. | Function | Unit | Normal value | ||
| 1 | Appearance | Homogeneous hardness,good order,good homogeneous ,non other substance and divided phenomenon. | |||
| 2 | Size | Length | mm | Appror,960 | |
| Width | mm | 740-960 | |||
| 3 | Tolerance | mm | Average deviation value | Individual deviation value | |
| ±0.015 | ±0.03 | ||||
| 4 | Mica conten | % | ≥90 | ||
| 5 | Density | g/cm3 | ≥2.2 | ||
| 6 | Exudation and displacement resistance | Under the 200℃ to experiment observe by eyes,little drop of adhesive mass and mica shifting should not be seen | |||
| 7 | Elastic compression | % | ≤4 | ||
| 8 | Plastic shape change | % | ≤5 | ||
| 9 | Aliquation rate | % | ≤3 Above 1mm thickness of commutator sheet without rules |
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| 10 | Electric intensity | Mv/m | ≥20 | ||
| 11 | Shortcoming and conductive particle examing | Record data | |||