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 1. COMPOSITION AND PRESENTATION
Laminated paperboard is made of High-quality transformer board with casein, polyester resin or phenolic resin impregnated sheet by hot pressing process. Mainly used as the insulating parts in the field of oil transformer.
2. PROPERTIES & APPLICATIONS
Material free of strains, very flat, highest mechanical and electrical strength, usually used as the insulating parts for oil transformer. It widely applied in strips, cylinders, spacers, plates, supports etc.
3. MAIN TECHNICAL CHARACTERISTICS
Table1—mm
|
Thickness |
Width |
Length |
|
5.0—100mm |
1000mm |
2000mm |
|
1350mm |
2500mm |
|
-- |
-- |
Table 2
|
Properties |
Unit |
Value |
|
A |
B |
C |
|
Density |
g/cm3 |
1.15-1.35 |
|
Water content |
% |
<8.0 |
<6.0 |
≤6.0 |
|
Shrinkage |
MD |
% |
<0.5 |
<0.5 |
≤0.5 |
|
CMD |
<0.7 |
<0.7 |
≤0.7 |
|
Ash content |
% |
<0.8 |
<0.8 |
<0.8 |
|
Ration of absorption oil |
% |
>11 |
>8.0 |
≥9.0 |
|
Tensile strength |
LW |
Mpa |
≥100 |
≥100 |
≥100 |
|
CW |
≥85 |
≥85 |
≥85 |
|
Compression strength |
LW |
Mpa |
≥125 |
≥145 |
≥120 |
|
CW |
≥90 |
≥100 |
≥70 |
|
Moisture content |
|
≤6 |
≤6 |
≤6 |
|
Conductivity of aqueous extract |
ms/m |
<11 |
<8.4 |
<8.0 |
|
