又粗又长又硬爽死我了动态图

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江蘇盛欣管業有限公司專業生產pp管、pp管材、frpp管、frpp管材等各類管閥件材料,歡迎新老客戶來電咨詢!
聯系人:張經理 銷售熱線:0511-88325449 手 機:13905285302 地址:揚中市八橋鎮永勝工業區

PP制品生產是通過一定的成型方法,將塑料(粉料、粒料、溶液等)制成所需形狀的制品的。隨著聚合物的生產和應用的快速增長,將聚合物加工成各種制品的加工成型技術也有了相應的發展和提高。加工成型方法有物理加工成型和化學加工成型兩種。 物理加工成型是指塑料通過加熱、熔融、冷卻過程而成制品,如擠出成型、注射成型、壓延成型、鑄塑成型、回轉成型等等?;瘜W加工成型是指在加工過程中伴有化學反應,最后制成制品,如反應注射成型等。 塑料制品的成型方法是根據制品的形狀等確定的。有的制品形狀只能用一種成型方法得到,有的可用兩種或多種成型方法得到。擠出成型PP管材是連續生產出來的,制品的軸向斷面形狀是相同的。由于它是連續操作成型,所以生產效率高,產品質量穩定。注射成型是間歇操作生產PP管件,制品的形狀幾乎可制成任意形。壓延成型生產的制品只能是膜、板類片材。 PP管件和PP管材的生產除了需要經過加工成型過程以外,有的制品還需進行機械加工、修飾和裝配。機械加工是指在成型后的工件上進行鉆、車、銑等加工,以完成成型工藝無法實現或完成的作業;修飾的目的在于美化制品外觀或達到其它目的;裝配是將各個已完成的工件連接或配套裝配,以使其成為一個完整制品的過程。 要制作PP管件和PP管材,一般的程序是:1.選擇材料或配方;2確定成型工藝;3.設計制品圖、模具圖并加工4.確定最佳工藝條件并試車;5.檢測制品性能;6.調整、改進配方、模具及工藝條件等;7.大規模穩定生產。

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又粗又长又硬爽死我了动态图
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