这是发动机台板前铸造铸件和轴承公屋。
This is the engine bedplate casting ex foundry and the bearing housing blocks.
结合铸件粘砂机理，从V法铸造的成型特征上分析V法铸造铸件的粘砂原因。
Based on the formation mechanism of penetration, the reason causing penetration defects of V-process castings was analyzed with considering the features of vacuum moulding process.
对铸造工艺有一定了解，熟悉铸件易产生的缺陷形式。
Comprehend foundry technics, familiar with the casting defects in the form of easy to produce.
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