Thermal expansion plate
This product is a rigid and loose sheet-like material made of short-cut alkali-free glass fiber mats, treated with pre-impregnation (resin containing curing accelerator) and pressed, which is characterized by expansion when heated, but has first-class rigidity under normal conditions. Its structure is loose and easily absorbs paint.
Classification:
Raw Materials
Thermal expansion plate
Product description
This product is a rigid and loose sheet-like material made of short-cut alkali-free glass fiber mats, treated with pre-impregnation (resin containing curing accelerator) and pressed, which is characterized by expansion when heated, but has first-class rigidity under normal conditions. Its structure is loose and easily absorbs paint. It can be used with different heat-resistant impregnating varnishes, and can be used as insulation gaskets and gaskets of class B, F, H and even C in electric motors and appliances, Gasket.
This product has been successively applied to all kinds of high and low voltage, AC and DC motors, wind power generation and traction motors, mainly used as gaskets in slots (bottom of slots, between layers, between rows, under magnetic slot inlay), end gaskets between adjacent windings, pole body liner insulation between magnetic pole coils and cores, gaskets between large DC motors and head sets and between the roots of commutator vertical plates, inlay gaskets for defective turns of large AC generators, etc., and can also be used in combination with Laminate pads are used in combination (laminate pads in the middle and thermally expanded glass felt plates sandwiched together on both sides) as end fixing pads for large hidden pole generators with large gaps between adjacent windings at the end of the magnet pole coils.
This product is a new type of spacer filler and firmware material with unique performance and wide application, which can be used in many parts of the motor. It has a good effect on simplifying the motor manufacturing process, saving man-hours and improving the insulation fastening, etc.
Technical conditions See table below
|
No. |
Item |
Unit |
Requirement |
||
|
1 |
Appearance |
|
Surface smooth, without impurities. Neat edge cutting, no delamination. |
||
|
2 |
Thickness |
mm |
0.50 , 0.75, 1.0, 1.5, 2.0 , 2.5 , 3, 4, 5 |
||
|
3 |
Length & width |
mm |
Maximum length:2400；maximum width:1000 |
||
|
4 |
Adhesive content |
% |
10±3 |
||
|
5 |
Density |
g/cm3 |
1.4~1.8 |
||
|
6 |
Thermal expansive（thickness） |
% |
130℃/60min |
150℃/60min |
|
|
≥40 |
≥55 |
||||
|
7 |
Volume resistivity |
Normal |
Ω·cm |
≥1.0*1010 |
|
|
varnished |
≥1.0*1013 |
||||
|
8 |
Surface resistivity |
Normal |
Ω |
≥1.0*1011 |
|
|
varnished |
≥1.0*1012 |
||||
|
9 |
Diexual |
Normal |
Kv/mm |
≥2 |
|
|
varnished |
≥4 |
||||
Product storage period: 6 months from the date of delivery. Storage temperature is below 30 degrees. Note: Keep away from heat sources.
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