描述：層壓板
3248環(huán)氧玻璃布層壓板
| 序 號(hào) No. | 項(xiàng) 目 Item | 單 位 Unit | 試驗(yàn)方法 Testing Method | 指 標(biāo) Indication |
| 物 理 性 能 Physical Properties | ||||
| 1 | 密度Density | g/cm3 | GB/T5130 | ≥1.8 |
| 2 | 玻璃纖維含量 Glass Fibre Content | % | —— | ≥60 |
| 3 | 吸水性（10mm） Water Obsorption | mg | GB/T5130 | ≤34 |
| 4 | 熱膨脹系數(shù) Thermal Expansion Coefficient | 1/℃ | GB/T1036 | 11.1×10-6 |
| 5 | 導(dǎo)熱系數(shù) Coefficient of Heat Conductivity | w/m.k | —— | 0.46 |
| 機(jī) 械 性 能 Mechanical Properties | ||||||
| 6 | 垂直層向 彎曲強(qiáng)度 Flexural Strengthat perpendicular to lamination | 常態(tài)（23+2）℃ Under normal | MPa | GB/T5130 | ≥410 | |
| 熱態(tài)（150+5）℃ At heat | MPa | ≥240 | ||||
| 7 | 彎曲彈性模量 Modulus of Elasticity in Flexure | MPa | ≥24900 | |||
| 8 | 壓縮強(qiáng)度 Compressive strength | 垂直層向 At perdicular lamination | MPa | ≥350 | ||
| 平行層向 At parallel to lamination | MPa | ≥200 | ||||
| 9 | 拉伸強(qiáng)度Tensile strength | 縱向Lengthwise | MPa | ≥314 | ||
| 橫向Crosswise | ≥300 | |||||
| 10 | 沖擊強(qiáng)度 （簡支梁） Impact strength charp | （無缺口） No notch | 縱向Lengthwise | kJ/ m2 | ≥160 | |
| 橫向Crosswise | ≥120 | |||||
| （缺口） Notched | 縱向Lengthwise | ≥40 | ||||
| 橫向Crosswise | ||||||
| 11 | 粘合強(qiáng)度 Bonding strength | N | Q/JBQP51 | ≥7660 | ||
| 12 | 平行層向剪切強(qiáng)度 Shear strength at parallel to lamination | MPa | GB/T5130 | ≥30 | ||
| 13 | 洛氏硬度 Rochwell strength | HRM | GB/T9342 | ≥115 | ||
| 電 氣 性 能 Dielectric Properties | |||||
| 絕緣電阻 Insulation Resistance | 常態(tài)下 Under normal | MΩ | GB/T5130 | ≥1.0×106 | |
| 浸水（24+1）h后 After Immersion for24+1h | ≥5.0×104 | ||||
| 電氣強(qiáng)度 （于90℃+2℃變壓器油中1min） Dielectric strength in transformer oil at 90℃ for 1 min | kv/mm | ≥14.2 | |||
| 平行層向耐電壓 （于90℃+2℃變壓器油中1min） Proof voltage in transformer oil at 90℃ for 1 min | KV | ≥45 | |||
| 介質(zhì)損耗因數(shù)（于浸水后，1MHz時(shí)） Dielectric loss factor after immersion at 1MHz | | ≤0.04 | |||
| 介質(zhì)常數(shù)（于浸水后，1MHz時(shí)） Dielectric loss Constant after immersion at 1MHz | | ≤5.5 | |||
| 表面電阻率 Surface Resistivity | 常態(tài)Under normal | MΩ | GB/T1410 | ≥1.0×107 | |
| 浸水（23+2℃/24h） After Immersion of 23+2℃ for 24th | ≥1.0×105 | ||||
| 體積電阻率 Volume Resistivity | 常態(tài) Under normal | MΩ.m | ≥1.0×105 | ||
| 浸水（23+2℃/24h） After Immersion of 23+2℃ for 24th | ≥1.0×103 | ||||
| 相比電痕化指數(shù) Comparative Trackling Index | | GB/T4207 | ≥200 | ||
| 耐 熱 性 能 Thermal Properties | ||||
| 玻璃化轉(zhuǎn)變溫度Tg Glass Transition Temperature | ℃ | IEC61006 | ≥172 | |
| 熱壓收縮率 Reduction rate of Heat press | % | 參考ASTMD621 | ≤0.40 | |
| 溫度指數(shù) Thermal Index | | GB/T11026.1 | ≥155 | |
