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超級雙相鋼精密鑄件離心泵葉輪
詳細介紹
超級雙相鋼精密鑄造的細節如下:

1.為了防止雙相鋼精密鑄件在鑄造過程中出現白口現象,要在鑄造過程中采取措施,否則不能使壁厚過薄。鋁合金、鎂合金金屬模具鑄件,鑄件圓角不小于2-5m。

2.雙相鋼精密鑄件的澆注坡度應略大于砂型鑄件的坡度。一般要比砂型大38-40%。

3.雙相鋼精密鑄件的至小壁厚應大于砂型鑄件,因為金屬模具散熱快。

4.雙相鋼精密鑄件的內壁和內肋厚度一般為連接外壁厚度的0.55-0.65。另外,由于內壁(肋)冷卻緩慢,鑄件收縮時容易在內壁與外壁交界處產生裂紋。

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