1·A new method to simulate directly and predict the formation process of shrinkage cavity, its final shape and position for steel castings and ingot was proposed using computer.
提出了可用计算机直接模拟钢铸件、铸锭缩孔形成过程及最终形状和位置的直接模拟法。
2·The mechanism of the inclusion and shrinkage cavity in high-strength brasses produced by bottom running method was analyzed from the point of view of production technology.
通过实际生产从工艺角度分析了底注法生产窄结晶温度范围高强度黄铜时夹杂、 缩孔缺陷的产生机理。