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Located in tengde Industrial Park, Fuzhou National High tech Zone, the company focuses on the construction of high-end projects such as new energy and outdoor...
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The main products are: H-class dry-type transformer casting resin, indoor and outdoor transformer resin, insulation resin, iron core paint resin, room temperature resin, release agent, etc.
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At present, our products account for 50% of the domestic sales, and we have set up offices all over the country and some parts of the world, which will reach deeper cooperation with domestic well-known enterprises.
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Layer Insulation Materials

Class F DMD Soft Composite Material

Classification:

Layer Insulation Materials

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1000

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Product Description

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Basic Info.

Model NO.

6641 DMD

Application

Electrical Winding Insulation, Winding Wire Coating Insulation, Motor, Dry Type Transformers Coils or Reactor

Type

Insulation Paper

Chemistry

Hybrid Insulation

Material

Paper

Thermal Rating

F 155

Maximum Voltage

10KV~20KV

Classification

Hybrid Insulation Materials

Certification

ISO9001

Color

Red or as Per The Request

Brand

Tengrui

Trademark

Tengrui

Transport Package

Cartons, Pallets

Specification

Ordinary carton boxes, plastic film

Origin

China

HS Code

5603941000

Product Description

CLASS F DMD
Class F Epoxy Prepreg for dry type transformer
Product Specification
Class F Epoxy Prepreg used in dry type transformer is made of polyester film polyester fiber non-woven soft composite material impregnated with heat-resistance epoxy resin through baking.
Feature and Application
The solidified materials have high mechanical strength, outstanding dielectric properties and adhesive properties, heat resistance grade is Class F.
It is applicable to the layer insulation and end insulation of Class F dry type transformers coils or electric reactor, as well as the layer insulation, slot insulation and turn to turn insulation of electrical machinery and electric appliance.

Product Model: 6440

6440(JB/T10942-2010)
Performance requirements of 6440 Epoxy Prepreg(JB/T10942-2010)

6641(CLASS F DMD)

6641 Polyester thin film polyester fibre non woven fabric soft composite material (Class F DMD)

This product is a three-layer soft composite material which is made with modified polyester film bonded with thermal adhesive bonding polyester fiber non woven fabric on two sides. It has high mechanical strength, outstanding dielectric and dipping properties, suitable for slot insulation, turn-to-turn insulating and liner insulation in Y2 series electrical machinery or other class F motor, electric appliance. Heating resistance is class F.

6641(FDMD) 6641 (Class F DMD) main technical index

No.

Name of index

Unit

Index value

Thickness

0.15

0.18

0.20

0.23

0.25

0.30

0.35

0.40

Thickness tolerance

±0.020

±0.025

±0.030

±0.040

Quantitative and allowed deviation

150±22

190±28

210±32

240±36

260±39

310±46

390±58

440±66

Stretch shear strength

Lengthways

No bending

N/10
mm

≥80

≥100

≥120

≥130

≥150

≥170

≥200

≥300

After bending

≥80

≥90

≥105

≥115

≥130

≥150

≥180

≥220

crosswise

No bending

≥80

≥90

≥105

≥115

≥130

≥150

≥180

≥220

After bending

≥70

≥80

≥95

≥100

≥120

≥130

≥160

≥200

Elongation

Lengthways

≥15

≥5

Crosswise

≥10

≥5

Breakdownvoltage

No bending

≥6

≥7

≥9

≥10

≥11

≥13

≥15

≥18

After bending

≥6

≥7

≥8

≥9

≥10

≥12

≥14

≥17

Normal cohesiveness

No delamination

Heat affected

180±2ºC,10min,,,
180±2ºC,10min,no delamination, no blister, no gummosis

:(0.10mm,0.12mm,0.45mm0.50mm),;
Remark: Other specification of products (Such as thickness of 0.10mm,0.12mm,0.45mm and 0.50mm) or users have special requirements, supply can be negotiated according to the user's needs.
:4mm~1400mm;
Supply width: 4mm~1400mm;

() Application process reference (process condition of coil baked)

Curing temperature	Time
80ºC→120ºC/120ºC	0.5h/1h~2h
120ºC→150ºC/150ºC	0.5h~1h/4h~8h
150ºC→120ºC/120ºC	1h/1h~2h
120ºC→80ºC/80ºC	0.5h/1h
Remarks: Due to diversity of production and application of each transformer plant, the above data can be adjusted according to the actual situation of the manufacturer and the size of the workpiece.