2830 B Class Unidirectional Weftless Tape

B class unidirectional weftless tape is made from heat-resistant polyester and alkali-free glass fibre. It has excellent mechanical and electrical properties, which enable it can be used for the binding of B class DC motor armatures, winding asynch……

B class unidirectional weftless tape is made from heat-resistant polyester and alkali-free glass fibre.

It has excellent mechanical and electrical properties, which enable it can be used for the binding of B class DC motor armatures, winding asynchronous motor rotors and transformer cores.

The temperature classification of this kind of unidirectional weftless tape is B, 130℃.

It has been recognized to JB/T 6236.1-92.

No. Item Unit Specifications
2830 2840 2841 2851
1 Thickness mm 0.17±0.08 0.17±0.03 0.17±0.03 0.03±0.03
2 Width mm 10、15、20、25、30、 35
3 Resin content % 27±2
4 Setting time h 17 130℃ 10 5 130℃ 155℃ 10 5 130℃ 155℃ 10 5 3 130℃ 155℃ 180℃
5 Max. tension force N
6 Tensile strength after concretion Normality Mpa 800 800 900 900
Thernal state 500 500 560 560
7 Storage period One year(25℃) One year(30℃) One year(30℃) One year(30℃)

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