类别：聚合物；热塑性；聚甲醛（POM）
材料说明：化学缩写根据ISO 1043-1：POM，中流注塑级
特性：超高韧性，刚性高，抗溶剂性，流动性中等，耐化学性良好，耐碱，耐燃油性，耐水解性，硬度高。物性表：
| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.41 g/cc | 0.0509 lb/in³ | ISO 1183 | ||
| Density of Compound | 1.20 g/cc | 0.0434 lb/in³ | melt; Internal | ||
| Water Absorption | 0.65 % | 0.65 % | ISO 62 | ||
| Linear Mold Shrinkage, Flow | 0.020 cm/cm | 0.020 in/in | ISO 294-4 | ||
| Linear Mold Shrinkage, Transverse | 0.018 cm/cm | 0.018 in/in | ISO 294-4 | ||
| Melt Flow | 12 g/10 min @Load 2.16 kg, Temperature 190 °C |
12 g/10 min @Load 4.76 lb, Temperature 374 °F |
(MVR) cm³/10min; ISO 1133 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Tensile Strength, Yield | 65.0 MPa | 9430 psi | 50mm/min; ISO 527-2/1A | ||
| Elongation at Break | 25 % | 25 % | 50mm/min; ISO 527-2/1A | ||
| Elongation at Yield | 9.0 % | 9.0 % | 50mm/min; ISO 527-2/1A | ||
| Tensile Modulus | 2.90 GPa | 421 ksi | 1mm/min; ISO 527-2/1A | ||
| Flexural Modulus | 2.80 GPa | 406 ksi | ISO 178 | ||
| Charpy Impact Unnotched | 15.0 J/cm² | 71.4 ft-lb/in² | ISO 179/1eU | ||
| 14.0 J/cm² @Temperature -30.0 °C |
66.6 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eU | |||
| Charpy Impact, Notched | 0.650 J/cm² | 3.09 ft-lb/in² | ISO 179/1eA | ||
| 0.600 J/cm² @Temperature -30.0 °C |
2.86 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eA | |||
| Tensile Creep Modulus, 1 hour | 2500 MPa | 363000 psi | ISO 899-1 | ||
| Tensile Creep Modulus, 1000 hours | 1300 MPa | 189000 psi | ISO 899-1 | ||
| Electrical Properties | Metric | English | Comments | ||
| Volume Resistivity | 1.00e+14 ohm-cm | 1.00e+14 ohm-cm | IEC 60093 | ||
| Surface Resistance | 1.00e+14 ohm | 1.00e+14 ohm | IEC 60093 | ||
| Dielectric Constant | 4.0 @Frequency 100 Hz |
4.0 @Frequency 100 Hz |
IEC 60250 | ||
| 4.0 @Frequency 1.00e+6 Hz |
4.0 @Frequency 1.00e+6 Hz |
IEC 60250 | |||
| Dielectric Strength | 35.0 kV/mm | 889 kV/in | IEC 60243-1 | ||
| Dissipation Factor | 0.0020 @Frequency 100 Hz |
0.0020 @Frequency 100 Hz |
IEC 60250 | ||
| 0.0050 @Frequency 1.00e+6 Hz |
0.0050 @Frequency 1.00e+6 Hz |
IEC 60250 | |||
| Comparative Tracking Index | 600 V | 600 V | IEC 60112 | ||
| Thermal Properties | Metric | English | Comments | ||
| CTE, linear | 110 µm/m-°C | 61.1 µin/in-°F | ISO 11359-2 | ||
| Specific Heat Capacity | 2.21 J/g-°C | 0.528 BTU/lb-°F | Internal | ||
| Thermal Conductivity | 0.155 W/m-K | 1.08 BTU-in/hr-ft²-°F | Internal | ||
| Melting Point | 166 °C | 331 °F | 10°C/min; ISO 11357-1,-2,-3 | ||
| Deflection Temperature at 1.8 MPa (264 psi) | 106 °C | 223 °F | ISO 75-1, -2 | ||
| Flammability, UL94 | HB @Thickness 1.60 mm |
HB @Thickness 0.0630 in |
UL94 | ||
| HB @Thickness 3.00 mm |
HB @Thickness 0.118 in |
UL94 | |||
| Flame Spread | <= 75 mm/min | <= 3.0 in/min | ISO 3795 and FMVSS 302 | ||
| Processing Properties | Metric | English | Comments | ||
| Processing Temperature | 20.0 - 30.0 °C | 68.0 - 86.0 °F | |||
| 80.0 - 120 °C | 176 - 248 °F | Cavity temperature | |||
| 165 °C | 329 °F | Ejection temperature; Internal | |||
| Feed Temperature | 60.0 - 80.0 °C | 140 - 176 °F | |||
| Zone 1 | 170 - 180 °C | 338 - 356 °F | |||
| Zone 2 | 180 - 190 °C | 356 - 374 °F | |||
| Zone 3 | 190 - 200 °C | 374 - 392 °F | |||
| Zone 4 | 190 - 210 °C | 374 - 410 °F | |||
| Die Temperature | 190 - 210 °C | 374 - 410 °F | |||
| Melt Temperature | 190 - 230 °C | 374 - 446 °F | |||
| Mold Temperature | 80.0 - 120 °C | 176 - 248 °F | |||
| Drying Temperature | 120 - 140 °C | 248 - 284 °F | |||
| Dry Time | 3.00 - 4.00 hour | 3.00 - 4.00 hour | |||
| Moisture Content | 0.15 % | 0.15 % | Necessary low maximum residual | ||
| Injection Pressure | 60.0 - 120 MPa | 8700 - 17400 psi | |||
| Hold Pressure | 60.0 - 120 MPa | 8700 - 17400 psi | |||
| Back Pressure | 4.00 MPa | 580 psi | |||
| Screw Speed | 70 rpm @Diameter 55.0 mm |
70 rpm @Diameter 2.17 in |
|||
| 100 rpm @Diameter 40.0 mm |
100 rpm @Diameter 1.57 in |
||||
| 150 rpm @Diameter 25.0 mm |
150 rpm @Diameter 0.984 in |
||||
| Hot-Working Temperature | 190 - 210 °C | 374 - 410 °F | |||
| De |
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| Injection molding | Yes | ||||
| Injection speed | slow-medium | ||||
| Longer pre-drying times/storage | Can be stored in standard conditions until processed. | ||||
| Pre-drying | Drying is not normally required with proper storage | ||||
| Processing conditions | 9988 | ||||
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