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加工pom要注意什么

相關標簽:普利朗 POM、西班牙Triesa POM、美國福祿 POM塑料米、擠出級 POM、電子電器部件 POM、食品 POM塑料米

加工pom要注意什么?
POM是五種主要工程塑料之一。它具有高硬度,耐磨性,抗蠕變性和耐化學性的優點。Jucelon通過改進方法(例如增強,增韌和耐磨性)開發了一系列高性能POM產品。,廣泛用于汽車,電子電器和家用電器領域。處理POM時,請注意以下幾點:1.塑膠加工POM具有低吸水率,通常為0.2%-0.5%。通常情況下,POM無需干燥即可加工,但濕物料必須干燥。干燥溫度在80℃以上,時間超過2小時。應根據供應商的信息進行。再生材料的比例一般不超過20-30%。但是根據產品類型和最終用途,有時可以達到100%。2.選膠機除了要求螺桿沒有停滯區域外,POM對注塑機也沒有特殊要求,通常注塑就足夠了。3.模具和澆口設計普通模具的溫度控制為80-90℃,流道直徑為3-6mm,澆口長度為0.5mm,澆口尺寸取決于橡膠壁的厚度,圓形澆口的直徑至少應為澆口直徑的0.5-0.6倍產品厚度矩形澆口的寬度通常為厚度的2倍或更多,深度為壁厚的0.6倍,脫模斜率在40'-130'之間。排氣系統:POM-H厚度0.01-0.02m,寬度3mmPOM-K厚度0.04mm,寬度3mm4.熔化速度可以通過空射法測量:POM-H可以設置為215℃(190℃-230℃)POM-K可以設置為205℃(190℃-210℃)5,射出速度中速通常太快了。如果太慢,很容易產生波紋。6.背壓越低越好不超過200bar。7.滯留時間如果設備沒有膠水保持點,則可以將POM-H在215°C下保持35分鐘;POM-K可以在205°C下保持20分鐘而不會發生嚴重分解。在注射溫度下,熔體在機筒中的停留時間不得超過20分鐘。POM-K可以在240°C的溫度下保持7分鐘。如果機器停止運轉,則機筒溫度可以降至150°C。如果要長時間停止機器,則必須清潔機筒并清洗機筒。加熱器關閉。8.關機要清潔機筒,必須使用PE或PP,關閉電加熱裝置,然后將螺絲推到前面的位置。槍管和螺絲必須保持清潔。雜質或灰塵會改變POM(尤其是POM-H)的過熱穩定性。因此,當用完含鹵素的聚合物或其他酸性聚合物時,POM材料只能在用PE清洗后使用,否則會發生爆炸。顏料,潤滑劑或含GF尼龍的材料使用不當會導致塑料降解。9.后處理對于非常熱的零件和高質量的要求,需要進行熱處理。為了獲得退火處理的效果,可以將產品浸入30%的鹽酸溶液中30分鐘以進行檢查,然后目視判斷是否有殘余應力引起的裂紋。
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
或者添加下方微信索取報價(價格有驚喜) 。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 C9021LS應用案列
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