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Why, aluminum die casting hole processing, can't more than 0.25 mm?

Posted:2015/10/12 18:32:56 Read:3490
  為了適合壓鑄,在壓鑄用的鋁合金內加了很多矽(si)。鋁合金在模具內凝結時,這些矽,會浮到表面上,形成一層薄薄的矽膜。這層矽膜,硬度非常硬,非常耐磨。有些OEM的設計師,就利用這個特性。將壓鑄件的孔內表面直接計為軸承面。這個矽表面層,一般只有0.2到0.9mm的厚度。加工太多,這個軸承面的壽命就會縮短.

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