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壓制成型法是UPE型材UHMWPE主要加工方法

壓制成型法是UPE型材UHMWPE主要加工方法,主要用于板材生產。它是將樹脂裝在模具中,用加熱加壓的方法制成一定形狀的塑料制品。

粉末的密度、加熱溫度、加熱時間、添加劑的用量和比例、UPE型材的品種以及施加的壓力都將影響產品的尺寸和性能,因此操作的隨機性比較大,對操作者技術要求比較高。模壓成型的特點是成本低、設備簡單、投資少、不受UHMWPE相對分子量高低影響,即使是世界上相對分子量最高的UHMWPE(德國已高達 1000 萬)也能加工。

缺點是生產效率低、勞動強度大、產品質量不穩定等。對于UHMWPE的成型加工來說,由于其相對分子量太高,流動性差,在其它成型工藝還不太成熟的情況下,世界各國主要采用模壓成型加工UHMWPE制品。



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