China Super Lowest Price Laminated Flexibles - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F manufacturers and Exporter

Super Lowest Price Laminated Flexibles - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F

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Super Lowest Price Laminated Flexibles - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F Detail:

Technical Requirements

1.1 Appearance: the surface of sheet shall be flat and smooth, free of air bubbles, wrinkles or cracks and reasonably free of other small imperfections such as scratches, dents, etc. The edge of sheet shall be tidy and be free of delaminations and cracks. The color shall be substantially uniform, but a few stains are permissible.

1.2 Dimension and allowed tolerance

1.2.1 Width and Length of Sheets

Width & Length (mm)	Tolerance (mm)
＞970～3000	+/-25

1.2.2 The nominal thickness & tolerance

Nominal thickness (mm)

Tolerance (mm)

Nominal thickness (mm)

Tolerance (mm)

0.5

0.6

0.8

1.0

1.2

1.6

2.0

2.5

3.0

4.0

5.0

6.0

8.0

+/-0.12

+/-0.13

+/-0.16

+/-0.18

+/-0.20

+/-0.24

+/-0.28

+/-0.33

+/-0.37

+/-0.45

+/-0.52

+/-0.60

+/-0.72

+/-0.82

+/-0.94

+/-1.02

+/-1.12

+/-1.30

+/-1.50

+/-1.70

+/-1.95

+/-2.10

+/-2.30

+/-2.45

+/-2.50

+/-2.80

Remarks: For the non-nominal thickness not listed in this table, the deviation shall be the same as that of the next greater thickness.

1.3 Bending Deflection

Thickness (mm)

Bending Deflection

1000mm（Ruler length） (mm)

500mm（Ruler length）(mm)

3.0～6.0

＞6.0～8.0

＞8.0

≤10

≤8

≤6

≤2.5

≤2.0

≤1.5

1.4 Mechanical processing: the sheets shall be free of cracks, delaminations and scraps when such machining as sawing, drilling, lathing and milling is applied

1.5 The physical, mechanical and electrcal properties

No.	Properties	Unit	Standard value	Typical value
1	Density	g/cm³	1.7～1.95	1.94
2	Water absoprtion (2mm sheet)	mg	≤20	5.7
3	Flexural strength, perpendicular to laminations	MPa	≥340	417
4	Impact strength (Charpy, notch)	kJ/m²	≥30	50
5	Dielectric dissipation factor 50Hz	—	≤5.5	4.48
6	Dielectric constant 50Hz	—	≤0.04	0.02
7	Insulation resistance ( After 24h in water)	Ω	≥5.0 x10⁸	4.9 x10⁹
8	Dielectric strength, perpendicular to laminationsin transformer oil at 90℃+/-2℃, 1mm sheet	kV/mm	≥14.2	16.8
9	Breakdown Voltage, parallel to laminationsin transformer oil at 90℃+/-2℃	kV	≥35	38

Packing, Transportation and Storage

The sheets shall be stored in a place where temperature is no higher than 40℃, and be placed horizontally on a bedplate with a height of 50mm or above. Keep away from fire, heat (heating apparatus) and direct sunshine. The storage life of sheets is 18 months from the date of leaving factory. If the storage duration is over 18 months, the product also could be used after being tested to be qualified.

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Remarks and Precautions for Application

A high speed and small cutting depth g shall be applied when machining because of sheets’ weak thermal conductivity.

Machining and cutting this product will release much dust and smoke. Suitable measures should be taken to ensure dust levels are within acceptable limits during operations. Local exhaust ventilation and using the dust/particle masks are advised.

The sheets are subject to moisture after being machined, a coating of insulating vanish is recommended.

3240 machining parts(10)
CNC machining insulation parts(1)

Production Equipment

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The Package For Laminated Sheets

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Our business sticks for the basic principle of "Quality could be the life with the firm, and track record will be the soul of it" for Super Lowest Price Laminated Flexibles - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F , The product will supply to all over the world, such as: Hanover, Israel, Japan, We always hold on the company's principle "honest, professional, effective and innovation", and missions of: let all drivers enjoy their driving at night, let our employees can realize their value of life, and to be stronger and service more people. We are determined to become the integrator of our product market and one-stop service provider of our product market.

6643 Dmd-100 Flexible Laminate