类别：聚合物；热塑性；聚甲醛（POM）
材料说明：Hostaform®lw90ewx是一家专业的低磨损等级的乙缩醛共聚物用于改进性能包括配对时，对其他热塑性树脂（PBT，PA，PC，PMMA）或钢。由于特殊的蜡混合材料具有良好的焊接线
物性表：| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.40 g/cc | 0.0506 lb/in³ | ISO 1183 |
| Melt Flow | 9.5 g/10 min @Load 2.16 kg, Temperature 190 °C |
9.5 g/10 min @Load 4.76 lb, Temperature 374 °F |
(MVR) cm³/10min; ISO 1133 |
| Mechanical Properties | Metric | English | Comments |
| Tensile Strength, Yield | 61.0 MPa | 8850 psi | 50mm/min; ISO 527-2/1A |
| Elongation at Break | 28 % | 28 % | 50mm/min; ISO 527-2/1A |
| Elongation at Yield | 8.0 % | 8.0 % | 50mm/min; ISO 527-2/1A |
| Tensile Modulus | 2.80 GPa | 406 ksi | 1mm/min; ISO 527-2/1A |
| Charpy Impact Unnotched | 18.0 J/cm² | 85.7 ft-lb/in² | ISO 179/1eU |
| Charpy Impact, Notched | 0.650 J/cm² | 3.09 ft-lb/in² | ISO 179/1eA |
| Thermal Properties | Metric | English | Comments |
| Melting Point | 166 °C | 331 °F | 10°C/min; ISO 11357-1,-2,-3 |
| Deflection Temperature at 1.8 MPa (264 psi) | 92.0 °C | 198 °F | ISO 75-1, -2 |
| 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 | |
| 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 | 100 - 120 °C | 212 - 248 °F | |
| Dry Time | 3.00 - 4.00 hour | 3.00 - 4.00 hour | |
| Moisture Content | 0.0015 % | 0.0015 % | Necessary low maximum residual |
| Injection Pressure | 60.0 - 120 MPa | 8700 - 17400 psi | |
| Hold Pressure | 60.0 - 120 MPa | 8700 - 17400 psi | |
| Back Pressure | 0.500 MPa | 72.5 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 | |
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