China 6630/6630A B-class DMD flexible composite insulation paper Manufacturer and Supplier | TCT
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  • 6630/6630A B-class DMD flexible composite insulation paper

6630/6630A B-class DMD flexible composite insulation paper

Short Description:

6630/6630A Polyester film/polyester non-woven fabric flexible laminate (DMD)，also called as B-class DMD  flexible composite insulation paper, it is a three-layer flexible laminate in which each side of polyester film (M) is bonded with one layer of polyester non-woven fabric (D). The thermal resistance is Class B.


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Product Detail

Product Tags

6630/6630A Polyester film/polyester non-woven fabric flexible laminate (DMD) is a three-layer flexible composite insulation paper in which each side of polyester film (M) is bonded with one layer of polyester non-woven fabric (D). The thermal resistance is Class B. Usually we call is as B class DMD insulation paper.

B-class DMD has two kinds of types according to the nominal thickness of the polyester fiber non-woven fabric.

 

 Type

 Nominal thickness of the polyester non-woven cloth

Description & Application

6630

0.05mm

 As per Clause 215 of IEC15C, the product consists of two-layer of polyester non-woven fabric (D) and one-layer polyester film stipulated in IEC 674-3-2. It has high dielectric property.  It is suitable for the process of mechanized inserting slot.

6630A

0.05～0.10mm

 6630A is more flexible than 6630. It is suitable for the process of hand-work inserting slot.

Product Features

B-class DMD has excellent electrical insulating properties, thermal resistance, mechanical strength and good impregnated property.

Applications

The thermal resistance is Class B. It is used for slot insulation, interphase insulation, interturn insulation and liner insulation in electric motors and electric appliances. 6630A is more flexible than 6630 and suitable for the process of handy insertion.

The properties (mechanical strength, breakdown voltage and flexibility and stiffness) of DMD are different for the different nominal thickness of polyester film. The thickness of the polyester film should be clearly indicated in purchasing order or contract.

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.

Packing, Transportation And Storage

6630 or 6630A is supplied in rolls, sheet or tape and packed in cartons or/and pallets

6630/6630A should be stored in clean & dry warehouse with temperature below 40℃. Keep away from fire, heat and direct sunshine.

 

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).

Technical Performances

The standard values for 6630 are shown in Table 1 and relevant typical values shown in Table 2.
The standard values for 6630A are shown in Table 3 and relevant typical values shown in Table 4.

Table 1: Standard performance value for 6630 B-class DMD insulation paper

No. Properties Unit Standard Values
1 Nominal thickness mm 0.15 0.18 0.2 0.23 0.25 0.3 0.35 0.4 0.45
2 Thickness tolerance mm ±0.020 ±0.025 ±0.030 ±0.035 ±0.040 ±0.045
3 Grammage & Allowed tolerance* g/m2 140±20 190±28 220±33 260±39 300±45 350±52 425±63 500±75 560±84
4 Nominal thickness for PET film um 50 75 100 125 150 190 250 300 350
5 Tensile strength MD Not folded N/10mm ≥80 ≥120 ≥140 ≥180 ≥190 ≥270 ≥320 ≥340 ≥370
After folded ≥80 ≥105 ≥120 ≥150 ≥170 ≥200 ≥300 ≥320 ≥350
TD Not folded ≥80 ≥105 ≥120 ≥150 ≥170 ≥200 ≥300 ≥320 ≥350
After folded ≥70 ≥90 ≥100 ≥120 ≥130 ≥150 ≥200 ≥220 ≥250
6 Elongation MD Not folded % ≥15 - -
After folded ≥10 ≥5 ≥3
TD Not folded ≥20 - -
After folded ≥10 ≥5 ≥2
7 Breakdown Voltage kV ≥6 ≥7 ≥9 ≥10 ≥12 ≥15 ≥18 ≥20 ≥22
8 Bonding property at room temp - No delamination
9 Bonding propertyat 155℃+/-2℃, 10min - No delamination, no bubble, no adhesive flow
Note*: Grammage is only for reference. The actual testing value is provided when delivering the goods.

Table 2: Typical performance values for 6630  B-class DMD insulation paper

No. Properties Unit Typical Values
1 Nominal thickness mm 0.15 0.18 0.2 0.23 0.25 0.3 0.35 0.4 0.45
2 Thickness tolerance mm 0.005 0.005 0.01 0.01 0.01 0.01 0.01 0.01 0.01
3 Grammage g/m2 150 190 225 260 290 355 420 510 570
4 Nominal thickness for PET film um 50 75 100 125 150 190 250 300 350
5 Tensile strength MD Not folded N/10mmwide 90 125 153 170 200 260 310 350 390
After folded 85 125 152 170 195 260 310 330 365
TD Not folded 85 115 162 190 220 282 340 335 360
After folded 80 115 160 190 220 282 340 295 298
6 Elongation MD Not folded % 16 - -
After folded 12 7 4
TD Not folded 22 - -
After folded 13 6 3
7 Breakdown Voltage kV 7.5 8.5 10 11 13 17 20 22 24
8 Bonding property at room temp - No delamination
9 Bonding propertyat 155℃+/-2℃, 10min - No delamination, no bubble, no adhesive flow.

Table 3: Standard performance values for 6630A B-class DMD insulation paper

No. Properties Unit Standard Values
1 Nominal thickness mm 0.18 0.2 0.23 0.25 0.3 0.35 0.4 0.45
2 Thickness tolerance mm ±0.025 ±0.030 ±0.030 ±0.030 ±0.030 ±0.035 ±0.040 ±0.045
3 Grammage & Allowed tolerance* g/m2 170±25 200±30 220±30 250±37 300±40 340±50 400±57 470±66
4 Nominal thickness for PET film um 50 75 75 100 125 150 190 250
5 Tensile strength MD Not folded N/10mm ≥100 ≥120 ≥130 ≥150 ≥170 ≥200 ≥300 ≥340
After folded ≥90 ≥105 ≥115 ≥130 ≥150 ≥180 ≥220 ≥300
TD Not folded ≥90 ≥105 ≥115 ≥130 ≥150 ≥180 ≥220 ≥300
After folded ≥70 ≥95 ≥100 ≥120 ≥130 ≥160 ≥200 ≥220
6 Elongation MD Not folded % ≥10 - -
After folded ≥10 ≥5 ≥3
TD Not folded ≥15 - -
After folded ≥15 ≥5 ≥2
7 Breakdown Voltage kV ≥7 ≥8 ≥8 ≥10 ≥11 ≥11 ≥16 ≥19
8 Bonding property at room temp - No delamination
9 Bonding propertyat 155℃+/-2℃, 10min - No delamination, no bubble, no adhesive flow
Note*: Grammage is only for reference. The actual testing value is provided when delivering the goods.

Table 4: Typical performance values for 6630A B-class DMD insulation paper

No. Properties Unit                                         Typical Values
1 Nominal thickness mm 0.18 0.2 0.23 0.25 0.3 0.35 0.4 0.45
2 Thickness tolerance mm 0.01 0.02 0.01 0.02 0.02 0.01 0.03 0.03
3 Grammage g/m2 190 218 241 271 335 380         450 530
4 Niminal thickness for PET film um 50 75 75 100 125 150 190 530
5 Tensilestrength MD Not folded N/10mm 120 145 155 180 245 283 340 350
After folded 105 142 154 180 240 282 330 340
TD Not folded 100 136 161 193 263 315 350 350
After folded 95 136 160 191 261 315 350 350
6 Elongation MD Not folded % 16 - -
After folded 15 10 9
TD Not folded 20 - -
After folded 18 10 6
7 Breakdown Voltage kV 9 10 10 12 13 15 21 22
8 Bonding property at room temp -                                                             No delamination
9 Bonding propertyat 155℃+/-2℃, 10min -                                                   No delamination, no bubble, no adhesive flow.

Production Equipment

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

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