China Manufacturer for Electrical Insulating Paper - 6641 F-class DMD flexible composite insulation paper – D&F manufacturers and Exporter

Manufacturer for Electrical Insulating Paper - 6641 F-class DMD flexible composite insulation paper – D&F

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Manufacturer for Electrical Insulating Paper - 6641 F-class DMD flexible composite insulation paper – D&F Detail:

6641 Polyester film/polyester non-woven flexible laminate (Class F DMD) insulation paper is a three-layer flexible laminate made of high melting-point polyester film and excellent hot-rolling polyester non-woven fabric. Each side of the polyester film (M) is bounded by one layer of polyester non-woven fabric (D) with Class F adhesive.

DMD(1)
复合6641 F-DMD(6)(1)

Product Features

6641 F-class DMD flexible composite insulation paper has excellent thermal resistance, electrical, mechanical and impregnated properties.

Applications & Remarks

6641 F-class DMD insulation paper has such advantages: lower price, excellent flexibility, high mechanical & electrical properties, convenient application. It has also good compatibility with many kinds of impregnating varnish.

It is suitable for slot insulation, inter phase insulation and liner insulation in F-class electric motors.

According to customer’ request, we can also produce such two-layer or five-layer flexible composite as F-class DM, F-class DMDMD,etc.

Insulation for electric motor

Supply Specifications

Nominal width：1000 mm.

Nominal weight: 50+/-5kg /Roll. 100+/-10kg/roll, 200+/-10kg/roll

The splices shall not be more than 3 in a roll.

Color: white, blue, pink or with D&F printed logo.

Technical Performances

The standard values for 6641 are shown in Table 1 and relevant typical values shown in Table 2.

Table 1: Standard performance values for 6641 F-class DMD insulation paper

No.

Properties

Unit

Standard performance values

Nominal thickness

0.15

0.18

0.2

0.23

0.25

0.3

0.35

0.4

Thickness tolerance

±0.020

±0.025

±0.030

±0.035

±0.040

±0.045

Grammage (for reference)

g/m2

155

195

230

250

270

350

410

480

Tensile strength

Not folded

N/10mm

≥80

≥100

≥120

≥130

≥150

≥170

≥200

≥300

After folded

≥80

≥90

≥105

≥115

≥130

≥150

≥180

≥220

Not folded

≥80

≥90

≥105

≥115

≥130

≥150

≥180

≥200

After folded

≥70

≥80

≥95

≥100

≥120

≥130

≥160

≥200

Elongation

≥10

≥5

≥15

≥5

Breakdown voltage

Room temp.

≥7.0

≥8.0

≥9.0

≥10.0

≥11.0

≥13.0

≥15.0

≥18.0

155℃+/-2℃

≥6.0

≥7.0

≥8.0

≥9.0

≥10.0

≥12.0

≥14.0

≥17.0

Bonding property at room temp

－

No delamination

Bonding property at 180℃+/-2℃, 10min

－

No delamination,no bubble,no adhesive flow

Bonding property when affected by damp

－

No delamination

Temperature index

－

≥155

Table 2: Typical performance values for 6641 F-class DMD insulation paper

No.	Properties			Unit	Typical performance values
1	Nominal thickness			mm	0.15	0.18	0.2	0.23	0.25	0.3	0.35	0.4
2	Thickness tolerance			mm	0.005	0.005	0.01	0.01	0.01	0.01	0.01	0.01
3	Grammage			g/m2	138	182	207	208	274	326	426	449
4	Tensile strength	MD	Not folded	N/10mm	103	137	151	156	207	244	324	353
		MD	After folded		100	133	151	160	209	243	313	349
		TD	Not folded		82	127	127	129	181	223	336	364
		TD	After folded		80	117	132	128	179	227	329	365
5	Elongation		MD	%	14					12
5	Elongation		TD	%	18					12
6	Breakdown voltage		Room temp.	kV	8	10	12	12	14	15	16	28
6	Breakdown voltage		155±2℃	kV	7	9	11	11	13	14	14.5	25
7	Bonding property at room temp			－	No delamination
8	Bonding property at 180℃+/-2℃, 10min			－	No delamination, no bubble, no adhesive flow
9	Bonding property when affected by damp			－	No delamination

Test Method

As per the stipulations in Part Ⅱ: Test Method, Electrical Insulating Flexible Laminates, GB/T 5591.2-2002 (MOD with IEC60626-2: 1995).

Packing And Storage

6641 is supplied in rolls, sheet or tape and packed in cartons or/and pallets.

6641 should be stored in clean & dry warehouse with temperature below 40℃. Keep away from fire, heat and direct sunshine.

Production Equipment

We have tow lines, the production capacity is 200T/month.

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