Click image to view full size image
Description
Plywood is produced by gluing together, in high temperature (145-150ºC) and under high pressure (6-12 MPa), 2mm-thick beech veneers with durable, moisture-resistant adhesives.
Specification:
Thickness: 10-70mm
Standard Length &Width:
3000 * 1500 mm
2400 * 1200 mm
2000 * 1000 mm
2200 * 1200 mm
Technical Parameter
Item |
Index |
Unit |
Index data |
|
Physical |
Density |
T/m3 |
0.9-1.1 |
|
Rate of water content |
% |
≤ 7 |
||
Thickness shrinkage ratio after drying |
% |
≤ 1.5 |
||
Oil absorption rate |
% |
> 10 |
||
Ultimate thickness expansion rate after oil impregnation |
% |
≤ 0.5 |
||
Compatibility with transformer oil |
Good |
|||
Mechanical |
Tensile strength |
Parallel direction |
Mpa |
≥50 |
Compressive strength |
Parallel direction |
Mpa |
≥50 |
|
Vertical direction |
Mpa |
≥120 |
||
Bending strength |
Parallel direction |
Mpa |
≥100 |
|
Vertical direction |
Mpa |
≥100 |
||
Electrical |
Volume resistivity |
MΩ/m |
≥ 10a |
|
Electrical strength (50Hz) |
20ºC Transformer (Vertical) |
Mv/m |
≥9 |
|
90ºC Transformer (Vertical) |
Mv/m |
≥7 |
||
20ºC Transformer (Parallel) |
Kv/m |
≥45 |
||
90ºC Transformer |
Kv/m |
≥35 |
||
Dielectric loss factor (tg δ) (50Hz) |
20ºC Transformer oil |
≤0.2 |
||
90ºC Transformer oil |
≤0.13 |
|||
Relative dielectric constant (∑ n) |
20ºC Transformer oil |
≤3 |
||
90ºC Transformer oil |
≤3.6 |
|||
Application
It is widely used as insulation and supporting material in oil-cooled transformers.
Package
Wooden cases
Pallet
http://www.insulationmaterial-china.com/