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POM需要多少溫度才能注塑成型

相關標簽:意大利拉題 POM、澳大利亞Sincerity POM、意大利VAMP TECH POM塑膠料、耐寒 POM、合金 POM、高剛性 POM塑膠料

模具溫度控制為80-90℃。熔膠溫度:POM-H可設為215℃(190℃-230℃)POM-K可設為205℃(190℃-210℃)POM-H可在215℃滯留35分鐘,POM-K可在205℃滯留20分鐘不會有嚴重的分解滯留時間:如裝備沒有熔膠滯留點POM-H可在215℃滯留35分鐘POM-K可在205℃滯留20分鐘不會有嚴重的分解在注塑溫度下熔體不能在機筒內滯留超過20分鐘。POM-K在240℃下可滯留7分鐘。若是停機,機筒溫度可降到150℃,如要長期停機就必需清理機筒子,關閉加熱器。向左轉|向右轉擴大材料:分解時有刺激性和侵蝕性氣體發生,故模具鋼材宜選用耐侵蝕性的材料制作。
(1)POM是結晶型塑料,密度為1.42g/cm3,它的鋼性很好,俗稱“賽鋼”。
(2)它具有耐疲勞、耐蠕變、耐磨、耐熱、耐打擊等優良的性能,且摩擦系數小,自光滑性好。
(3)POM不易吸濕,吸水率為0.22~0.25%,在濕潤的環境中尺寸穩定性好,其收縮率為2.1%(較大),注塑時尺寸較難控制,熱變形溫度為172℃,聚甲醛有均聚甲醛兩種,性能不同(均聚甲醛耐溫性好一點)。留意事項:生產應繼續進行,若停機,應排空料筒中殘余料,以避免再升溫時材料分解及制品黑點產生。POM的成型溫度不許可超過240℃,在此溫度下物料很快會分解。物料不可在190℃以上的料筒內停止時間太長,否則也會引起物料分解。在包管制品格量和熔體活動性的環境下,應盡量選用較低的成型溫度和較短的成型周期。POM制品的后處理是以空氣或油作為介質進行的。溫度為140~150℃,時間3~5h。
專業耐高溫POM、增韌POM、增強POM、耐候POM、擠出POM、耐磨POM、自潤滑POM、抗靜電POM等原材料采購請來電咨詢 。以上文獻若需轉載請備注出處:PBT樹脂 //shanglikaiguan.cn/

延伸閱讀—POM 日本寶理 HP25X應用案列
高剛性 其它 注塑
高剛性,高粘度。
參考數據
性能項目 試驗條件[狀態] 測試方法 測試數據
彎曲強度 —— ISO-178 92 Mpa
表面電阻率 —— IEC-60093 1×10 Ω
決緣破壞強度(3mmt) —— IEC-60243-1 19 KV/mm
彎曲模量 —— ISO-178 2650 Mpa
負荷變形溫度(1.8MPa) —— ISO-75-1,2 95
線性熱膨脹系數((23×55℃)垂直方向) —— ISO-11359-2 12 x10
斷裂應變 —— ISO-527-1,2 35 %
線性熱膨脹系數((23×55℃)流動方向) —— ISO-11359-2 13 x10
阻燃性 —— UL94 HB
拉伸彈性模量 —— ISO-527-1,2 —— Mpa
簡支梁沖擊強度(有缺口) —— ISO-179/1eA 11 KJ/m
比重 —— ISO-1183 1.41 g/cm
拉伸強度 —— ISO-527-1,2 68 Mpa
體積電阻率 —— IEC-60093 1×10 Ω*cm
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