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Product Name: Phenolic Resin Laminate tubes Rods
Product Description
1. 3721 and 3721-1：Mechanical and electrical
applications; 3721 is better than 3721-1 in strength; 3721-1 is the economical
product versus 3721
2. 3722, 3723, 3724 and 3725：Similar to NEMA Grade C, CE, L and LE
respectively
3. 3840：Mechanical and electrical applications, good moisture resistance.
If the usuage is not hindered, it is allowed to have some cracks on top surface
or section of rod with diameter more than 25mm.
4. 3841 and 3841F：Similar to NEMA Grade G-10 and FR-4 respectively. If
the usuage is not hindered, it is allowed to have some cracks on top surface
or section of rod with diameter more than 25mm.
used in Bushings, bearings, spacer rings in metal slitting, rollers,Shaft
bearings, close tolerance housings friction bushings high voltage insulators,
fuse tubes, and solenoid and coil winding cores.lap spools, brush holders,
liners fibre-lined fuse tubes.pulleys, bushings, rollers and insulators.all
electrical and electronic applications
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Properties
|
Grade
|
|
Phenolic Cotton Cloth Molded laminate Rod
|
Epoxy Glass Cloth Molded laminate Rod
|
|
Properties
|
Units
|
3721
|
3721-1
|
3722
|
3723
|
3724
|
3725
|
3840
|
3841
|
3841F
|
| |
g/cm3
|
1.25-1.40
|
1.25-1.40
|
1.25-1.40
|
1
|
1.25-1.40
|
1.25-1.40
|
1.70-1.79
|
1.70-1.79
|
1.70-1.79
|
|
Water absorption rate (D-24/23)
|
≤
|
%
|
1
|
1
|
2.0
(Φ13㎜)
|
1.3
(Φ13㎜)
|
1.5
(Φ13㎜)
|
1.1
(Φ13㎜)
|
_
|
0.5
(Φ13㎜)
|
0.5
(Φ13㎜)
|
|
Flexural strength
|
≥
|
MPa
|
118
|
88
|
110
|
90
|
110
|
83
|
343
|
241
|
241
|
|
Tensile strengh
|
≥
|
MPa
|
78
|
_
|
_
|
_
|
_
|
_
|
196
|
_
|
_
|
|
Compression strength (Axial)
|
≥
|
MPa
|
_
|
_
|
131
|
138
|
131
|
138
|
_
|
241
|
241
|
|
Insulation resistance parallel to laminations
A: Under normal condition
D-24/23: Immersion in water
|
≥
≥
|
W
|
1.0×108
_
|
1.0×108
_
|
_
_
|
_
_
|
_
_
|
_
_
|
1.0×1010
1.0×107
|
_
_
|
_
_
|
|
Breakdown voltage parallel to laminations
(in transformer oil)
|
≥
|
KV
|
10
(20±5℃)
|
10
(20±5℃)
|
_
|
10
(20±5℃)
|
_
|
10
(20±5℃)
|
15
(90±2℃)
|
15
(90±2℃)
|
15
(90±2℃)
|
|
Flammability
|
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
FV0
|
|
Color
|
|
—
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Natural
|
Natural
|
Natural
|
Natural
|
Natural
|
Natural
|
Natural
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Green
|
Green
|
|
Reference standard
|
|
—
|
Enterprise Standard
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Company Details
youngmancn com DIAMOND DOTTED INSULATION PAPER
used in gas oil insulated transformers for electrical insulation and coil strengthening. The uncoated portions enable quick evacuation of air moisture. by Kraft Paper or Presspaper coated with... more
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