The Pre-conditioner Conjugate Gradient solver is used to calculate two examples. The result shows that the proposed solving approach is effective and suitable for the mold filling analysis of the three dimensional meshes. 采用预处理共轭梯度求解法计算了两个实例,结果表明这样计算效果非常有效,尤其适于求解三维网格模型的充模分析。
In addition, a method to estimate the "transient mold area" thickness during the sand casting process was verified by temperature gradient analysis of the mold. 此外,提出了一种计算砂型铸造过程中铸型“瞬态区域”厚度的估算方法,并利用铸型的温度梯度分布进行了分析验证。
In Situ Gradient Composites of Al Fe Produced by Centrifugal Casting with Sand lined Metal Mold 覆砂金属型离心铸造Al-Fe合金自生梯度复合材料
The results show that temperature gradient on the front edge of solidified shell in combined mold can be reduced and the proportion of equiaxial crystal of billet is more than 80%. 结果表明:复式结晶器能够降低钢液凝固前沿的温度梯度,从而使铸坯的等轴晶率超过80%。
The result showed that the distributing of temperature is not uniform during equal channel angular pressing, there exists obvious temperature gradient and the tempera-ture increased significantly in the mold Angle shear part. 研究结果表明,等通道挤压过程中试件温度分布不均匀,在模具转角剪切部位温度显著升高,且存在明显的温度梯度。