NMN75/F是三层的柔软复合材料，外面两层是T464绝缘纸，内层为聚酯薄膜。绝缘等级属F级(155℃)。
NMN75/F comprise of two layers of T464brand paper and one inner layer of polyester film. Insulation Class is F(155℃)。
1 应用提示Application remarks
NMN75/F兼具T464的优良耐温性能，抗延伸撕裂强度及聚酯薄膜的优良介电强度，机械性能。适用于F级电机的槽间绝缘，匝间绝缘和衬垫绝缘。
NMN75/F combine the advantages of superior thermal properties and tearing resistance of T464 as well as the excellent electrical and mechanical properties of polyester film. It is suitable for insulation of slot , phase , turn-to-turn and liner of F class motors and generators.
2 技术要求Performance Requirements
1.1 外观Appearance
表面应均匀、光滑、和无气泡、针孔、皱折及瑕疵之类缺陷。
surface of materials is uniformity ,velvet and haven’t air bubble, pinhole, goffer and blemish etc.
1.2 性能要求Performance requirements
表1 NMN75/F性能要求 Table 1 The standard values of NMN75/F
序号 NO. | 指称名称 Properties | 单位 Units | 指标值 Values |
1 | 标称厚度 Nominal thickness | mm | 0.14 | 0.17 | 0.18 | 0.20 | 0.23 | 0.25 | 0.30 | 0.36 |
2 | 厚度允差 Thicknessallowed tolerance | mm | ±0.01 | ±0.02 | ±0.02 | ±0.03 | ±0.03 | ±0.03 | ±0.04 | ±0.04 |
3 | 标称定量 Nominal grammage | g/m2 | 140 | 180 | 210 | 250 | 270 | 300 | 360 | 460 |
4 | 定量允差 Grammageallowedtolerance | g/m2 | ±17 | ±20 | ±30 | ±30 | ±35 | ±40 | ±50 | ±50 |
5 | 薄膜标称厚度 Film nominal thickness | um | 50 | 75 | 100 | 125 | 140 | 165 | 200 | 265 |
6 | 拉伸强度(纵向) Tensile strength（MD） | N/10mm | ≥100 | ≥150 | ≥160 | ≥180 | ≥200 | ≥220 | ≥270 | ≥320 |
7 | 拉伸强度(横向) Tensile strength（XD） | N/10mm | ≥80 | ≥90 | ≥110 | ≥130 | ≥150 | ≥180 | ≥200 | ≥250 |
8 | 伸长率（纵向） Elongation（MD） | % | ≥10 | ≥10 | ≥10 | ≥12 | ≥12 | ≥12 | ≥12 | ≥12 |
9 | 伸长率（横向） Elongation（XD） | % | ≥15 | ≥15 | ≥15 | ≥18 | ≥18 | ≥18 | ≥18 | ≥18 |
10 | 击穿电压 Electric breakdown voltage | KV | ≥6 | ≥7 | ≥10 | ≥11 | ≥12 | ≥13 | ≥15 | ≥20 |
11 | 热态粘结180±2℃ 10Min Bond strength at 180±2℃ | 不分层、不起泡、不流胶 No delamination,no blister,no adhesive flow |