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Fuwang Home >> Products >> Presspaper/Pressboard >> Pressboard >> 3052 Laminated Paperboard
3052 Laminated Paperboard

Ref.: IEC B.3.1

    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.

    2. PROPERTIES & APPLICATIONS
    It has obviously good properties in machenical strength and insulation strength than laminated wood. Large square laminated board is now available.  It widely applied in strips, cylinders, spacers, plates, supports etc.  as the insulating parts for oil transformer.

    3. MAIN TECHNICAL CHARACTERISTICS
    Table-01

Properties
Unit
Value
A
B
C
Density
g/cm3
1.15-1.35
1.15-1.35
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
Lengthwise
Mpa
100
100
100
Widthwise
85
85
85
Compression strength
Lengthwise
Mpa
125
145
120
Widthwise
90
100
70
Moisture content
%
6
6
6
Conductivity of aqueous extract
ms/m
< 11
< 8.4
< 8.0

Table-02 Size and Tolerance

T/Thickness
Length
Width
Size
Tolerance
Size
Tolerance
Size
Tolerance
T10
0.5
2000
10
1000
10
10
1.0
2500
10
1350
15
20
1.5
--
--
--
--
30
+1.75 / -1.5
--
--
--
--
200T>50
2
--
--
--
--

 
 
 
 
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