3025 – Phenolic Cotton Cloth Laminate Sheets

Features and application:

Performance requirements of indicators as follows:
Table 1 : performance index

No.

Item

Unit

Value

1

Density

g/cm3

1.30—1.40

2

Water absorption

mg

Refer to table 2

3

Vertical layer direction bending strength Portrait

MPa

≥100

4

Tensile strength

MPa

≥80

5

Notch impact strength (Simple strut-beam method) Parallel layer direction

KJ/m2

≥8.8

6

Parallel layer direction insulation resistance After digging into water

Ω

≥1.0 × 106

7

Parallel layer direction breakdown voltage At (90±2)℃ transformer oil

kV

≥1

8

Vertical layer direction breakdown voltage At (90±2)℃ transformer oil

kV/mm

Refer to table 3

Table 2 :Water absorption

Average thickness mm

Water absorption mg

Average thickness mm

Water absorption mg

Average thickness mm

Water absorption mg

0.8

≤201

3.0

≤249

12.0

≤336

1.0

≤206

4.0

≤262

14.0

≤354

1.2

≤211

5.0

≤275

16.0

≤371

1.6

≤220

6.0

≤284

20.0

≤406

2.0

≤229

8.0

≤301

25.0

≤450

2.5

≤239

10.0

≤319

Single side processing to 22.5

≤540

Table 3 : electric trength

Average thickness mm

Electric strength kV/mm

Average thickness mm

Electric trength kV/mm

Average thickness mm

Electric strength kV/mm

0.8

≥0.89

1.6

≥0.72

2.6

≥0.56

0.9

≥0.84

1.8

≥0.69

2.8

≥0.53

1.0

≥0.82

2.0

≥0.65

3.0

≥0.50

1.2

≥0.80

2.2

≥0.61

 

 

1.4

≥0.76

2.4

≥0.58

 

 

1.Production:
–3025 phenolic resin cotton laminated sheet is made up of cotton impregnated with phenolic resin by baking and heat pressing.
–The thicker you choose, the higher electrical strength is.

产品6_05
 2.Features and Aplication:
–Insulation class: E class (120 °C)
–3025 phenolic resin cotton laminated sheet has good electrical property and mechanical property.
–It is wear-resisting and applies to wear-resisting and insulating parts of mechanical, motor and electrical equipments, such as gear machining, mold machining.
–This product is widely used for low voltage applications ,for machines & appliances having higher voltages but lower electrical stress (slot wedges ,spacers) as material for bearing , gears , rollers & other constructional components , drilling jigs , underwater bearings , telecommunication & high frequency technique property ,oil resistance and dielectric property, as electrical materials with low electric property.

253
3.Availability:
–Form: Sheet or other form customized according to customer requirements.
–Colur: Brown and dark. Special colours can be provided on request.
–Thickness : 0.5mm-100mm.
–Size: Regular 1020*2020mm,1220*2440mm.
–Special specifications can be customized.
4.Certification:
The insulation system has been approved by UL (NO.: E310670) and the products have passed ROHS and RECH test.

1

WhatsApp Online Chat !