Tianjin Ruiyuan Electric Material Co,.Ltd
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60*0.05mm 5000V TRANSFORMER MYLAR FILM COVERED LITZ WIRE COPPER MAGNET WIRE FOR TRANSFORMER
Mylar file litz wire is a polyester film made from stretched polyethylene terephthalate (PET) and is used for its high tensile strength, chemical and dimensional stability, transparency, reflectivity, gas and aroma barrier properties, and electrical insulation.A variety of companies manufacture boPET and other polyester films under different brand names. In the UK and US, the most well-known trade names are Bobet, Melinex, and Hostaphan.The manufacturing process begins with a film of molten polyethylene terephthalate (PET) being extruded onto a chill roll, which quenches it into the amorphous state.It is then biaxially oriented by drawing. The most common way of doing this is the sequential process, in which the film is first drawn in the machine direction using heated rollers and subsequently drawn in the transverse direction, i.e. orthogonally to the direction of travel, in a heated oven. It is also possible to draw the film in both directions simultaneously, although the equipment required for this is somewhat more elaborate. Draw ratios are typically around 3 to 4 in each direction.
APPLICATION
Induction coating hobs
RF transformers
RF transducers
E-Motors
SPECIFICATION
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Characteristics |
Technical requests |
Test Results |
Conclusion |
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Sample 1 |
Sample 2 |
Sample 3 |
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1 |
Surface |
Good |
OK |
OK |
OK |
OK |
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2 |
Breakdown Voltage |
≥ 3.75 KV |
5.5 |
5.5 |
5.4 |
OK |
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|
3 |
Pinhole Test |
≤ 20 hole/6m |
3 |
2 |
2 |
OK |
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4 |
Outer diameter |
≤ 0.069 mm |
0.06 |
0.061 |
0.06 |
OK |
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5 |
Inner diameter |
0.05±0.003 mm |
0.05 |
0.05 |
0.05 |
OK |
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6 |
Thickness of Mylar film(+0.002mm) |
0.008 mm |
0.009 |
0.0095 |
0.009 |
OK |
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7 |
Overlapping Ratio |
>33% |
35% |
40% |
35% |
OK |
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8 |
Direction |
Bunch |
Left |
OK |
OK |
OK |
OK |
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|
Film cover |
Left |
OK |
OK |
OK |
OK |
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9 |
Conductor Resistance |
≤ 175.75Ω/km |
166.62 |
163.23 |
160.21 |
OK |
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|
10 |
Pitch |
20.5±3 mm |
20.6 |
21 |
20.8 |
OK |
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Remark: |
Conclusion: |
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|
Approved |
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