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常見問答

注塑模具澆口脫料困難怎么辦?

更新日期:2023-11-29 08:53:59

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  很多大型注塑模具車間經常會遇到模具澆口脫料困難的問題,在注塑過程中,澆口粘在澆口套內,不易脫出。開模時,制品出現裂紋損傷。此外,操作者須用銅棒尖端從噴嘴處敲出,使之松動后方可脫模,嚴重影響生產效率。

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  這種故障主要原因是澆口錐孔光潔度差,內孔圓周方向有刀痕。其次是材料太軟,使用一段時間后錐孔小端變形或損傷,以及噴嘴球面弧度太小,致使澆口料在此處產生鉚頭。遇到此類問題怎么辦,該怎么解決?永豐模具廠家告訴你答案。

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  澆口套的錐孔較難加工,應盡量采用標準件,如需自行加工,也應自制或購買專用鉸刀。錐孔需經過研磨至Ra0.4以上。此外,須設置澆口拉料桿或者澆口頂出機構。

  制造模具時,應根據塑件質量的要求,批量的大小,制造期限的要求等具體情況,既能滿足制品要求,在模具結構上又簡便可靠,易于加工,使造價低,生產出來這樣的模具才是較好的。


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