在呋喃树脂砂型条件下，针对不同模数、不同冒口颈尺寸的圆柱试样进行了模拟计算和浇注试验。
Several cylindrical castings with different modulus and size of riser necks cast in furan bonded silicon sand molds are examined and analyzed numerically.
根据数值模拟结果并结合理论分析，通过加大冒口颈与冷铁的尺寸和增设冒口方法，对铸造工艺进行优化。
According to the results and combining with theoretical analysis, the casting process was improved by increasing the size of riser neck and chills and adding the number of the riser.
根据数值模拟结果并结合理论分析，通过加大冒口颈与冷铁的尺寸和增设冒口方法，对铸造工艺进行优化。
According to the results and combining with theoretical analysis, the casting process was improved by increasing the size of riser neck and chills and adding the number of the riser.
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