结果表明，正确地设置内浇口对减少摩托车箱体的缺陷有很大的作用。
The results prove that correct runner plays an important role in the decreasing of boxes'defects.
发现内浇口的形状和尺寸对铸件凝固过程中的温度分布及铸件品质影响很大。
It is found that the shape and size of ingate of thin walled plate casting have a tremendous influence on the temperature field during solidification and its quality.
在离心铸球工艺中，可应用有效重度和等效压头原理计算转速和内浇口断面积。
It is suggested to apply the principle of effective gravity and equivalent pressure head to calculate the rotational speed and ingate area in the processing of grinding ball by centrifugal casting.
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