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鋁合金壓鑄件流痕產生原因
點擊:2421    發布單位:www.bytespress.net    發布時間: 2019/2/28

鋁合金壓鑄件流痕產生原因:

 

  1、兩股金屬流不同步充滿型腔而留下的痕跡。

 

  2、模具溫度低,如鋅合金模溫低于150℃,鋁合金模溫低于180℃,都易產生這類缺陷。

 

  3、填充速度太高。

 

  4、涂料用量過多。

 

  壓鑄件流痕排除措施:

 

  1、調整內澆口截面積或位置。

 

  2、調整模具溫度,增大溢流槽。

 

  3、適當調整填充速度以改變金屬液填充型腔的流態。

 

  4、涂料使用薄而均勻。

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