... surface defect 表面缺陷 casting surface defect 铸件表面缺陷 surface defect concentration 表面缺陷密度 ...
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能否说出3种压铸件表面缺陷？
结果表明，这种加工后出现的线性缺陷并非裂纹，而是卷入铸件的氧化膜受外力作用后在叶片表面的显现。
It was indicated that the linear defect appeared after machining is not crack, it is the appearance of oxide film involved in the casting under the effect of external force.
介绍了铸件内腔表面因树脂砂芯引起的飞翅缺陷，并对其名称和形成机理进行了探讨。
The finning defects on inner surfaces of castings caused by resin sand cores were introduced, their names and definitions were discussed.
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