讨论了锭模的高宽比、绝热板材质对凝固位置及缩孔疏松的影响。
It is discussed that adiabatic material, as well as ratio of height and width effected solidification, shrinkage cavity and shrinkage porosity.
应用数值模拟技术模拟了活动横梁的温度场，并对缩孔疏松缺陷进行了预报，为工艺方案的确定提供指导。
Temperature fields were simulated by numerical simulation technology and the shrinkage defects were predicted, which supplied direction for establishment of casting process.
由于钢锭内部不可避免地存在偏析、疏松、缩孔及微裂纹等冶金缺陷。
Owing to both physical and chemical properties of metal material, there are inevitably shrinkage cavities, porosity and segregation in ingots.
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