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pom注塑產品要泡水嗎

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pom注塑產品要泡水嗎?
為了加快冷卻速度,不需要薄壁零件。如果在模具中成型出壁厚較厚的零件,則表面溫度會先下降,內部實際上會熔化。如果緩慢冷卻,內部會收縮并使表面塌陷,形成嚴重的收縮。要解決由于內部熔體冷卻引起的收縮問題,最好的方法是讓外部形狀,內部收縮率形成的孔不影響外觀,然后加快外表面的冷卻,可以立即浸入水中冷卻表面后,內部收縮一直歸因于外觀硬化不會形成向內塌陷的收縮痕跡。 。以上文獻若需轉載請備注出處:PBT樹脂 //shanglikaiguan.cn/

延伸閱讀—POM 泰科納 S27076應用案列
其它 其它 其它
參考數據
性能項目 試驗條件[狀態] 測試方法 測試數據
密度 ISO 1183 1.29 g/cm
吸水率 23℃and50%RH ISO 62 0.3 %
吸水率 飽和23℃ ISO 62 0.8 %
熔融指數 16cm ISO 1133 20.64 g/10min
球壓痕硬度 30秒數值 ISO 2039 part 1 35 MPa
拉伸模量 1mm/min ISO 527 part 1/2 900 MPa
彎曲模量 ISO 178 800 MPa
Charpy缺口沖擊強度 -30℃ ISO 179 1eA 0.9 J/cm
Charpy缺口沖擊強度 低溫23℃ ISO 179 1eA 1.20 J/cm
滲透率 deformation damage, 60x60x3mm ISO 6603, part 2 15 mm
拉伸蠕變模量 1 hour ISO 899 part 1 700 MPa
拉伸蠕變模量 1000 hours ISO 899 part 1 400 MPa
介電常數 1 MHz IEC 60250 5.30
介電常數 低頻100 Hz IEC 60250 5.30
絕緣強度 IEC 60243 part 1 28 kV/mm
耗散因數 1 MHz IEC 60250 250
耗散因數 低頻100 Hz IEC 60250 300
線性熱膨脹系數 23-55℃ Longitudinal ISO 11359 part 1/2 120 um/m-℃
熱變形溫度 1.8MPa ISO 75 part 1/2 55
維卡軟化點 VST/B/50 ISO 306 60
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