Network shrinkage defects 网状气缩缺陷
The shrinkage defects include primary piping, secondary piping, and centreline shrinkage.
收缩缺陷包括敞开性缩孔、二次缩孔以及轴线缩孔。
With a wheel hub casting as example, the measures to prevent shrinkage defects were proposed.
以轮毅铸件为例提出了防止缩孔缩松缺陷的工艺措施。
The simulation shows that the shrinkage defects forms at the thick shell and the joint of the shell.
模拟结果表明，在铸件的厚大处和壁与壁的交接处产生了缩孔、缩松缺陷。
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