铸件

低压铸件中气孔主要有哪些类型?

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低压铸件中气孔主要有哪些类型?
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铸件表面产生凹凸不平,一是造型的紧实度不均匀,在铸件浇注时产生型壁迁移不一致造成;二是铸件的浇冒系统不合理,使得铸件的补缩不充分,
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点状针孔
网状针孔
综合性气孔
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1) 点状针孔
(2) 网状针孔
(3) 综合性气孔
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