当前位置：
X-MOL 学术
›
Steel Res. Int.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Effects of Weight‐Compatible Design on Ingot Solidification
Steel Research International ( IF 1.9 ) Pub Date : 2021-01-12 , DOI: 10.1002/srin.202000560 Yan Zhang 1 , Changjun Xu 1 , Ningning Liu 1 , Yuting Zhang 2 , Zhengguo Xue 3
Steel Research International ( IF 1.9 ) Pub Date : 2021-01-12 , DOI: 10.1002/srin.202000560 Yan Zhang 1 , Changjun Xu 1 , Ningning Liu 1 , Yuting Zhang 2 , Zhengguo Xue 3
Affiliation
|
The problem of complex and various ingot moulds has bothered special steel enterprises. Herein, three ingot‐weight‐compatible (IWC) designs are described. The 39 tons mould is adapted to cast at most 45 tons of molten steel. The effect of three IWC designs on shrinkage cavity, porosity and macrosegregation is studied. The simulation is based on a polyphase coupled model for momentum, energy, and mass conservation equations. On the basis of the experimental results and previous literature, the interfacial heat transfer coefficient is established. Through finite difference method (FDM) simulation, the effect of the three IWC designs on the solidification is studied. The predictions of shrinkage porosity and macrosegregation are obtained. With the increase of ingot weight, the shrinkage cavity from the hot top is deeper in the three IWC designs. The Niyama criterion is found to be the condition under G/L0.5 < constant (G and L are the temperature gradient and cooling rate, respectively). With this criterion, the extent of centerline shrinkage porosity is predicted. Subsequently, utilizing the three compatible designs, the simulated results uncover that the centerline shrinkage porosity is serious. In addition, it is significant to note that the macrosegregation shows different characteristics.
中文翻译：
重量兼容设计对铸锭凝固的影响
复杂而多样的铸锭模具问题困扰着特殊的钢铁企业。在此，描述了三种铸锭重量兼容（IWC）设计。39吨的模具适合浇铸最多45吨的钢水。研究了三种IWC设计对收缩腔，孔隙率和宏观偏析的影响。该仿真基于动量，能量和质量守恒方程的多相耦合模型。根据实验结果和以往的文献，确定了界面传热系数。通过有限差分法（FDM）模拟，研究了三种IWC设计对凝固的影响。获得了收缩孔隙率和宏观偏析的预测。随着铸锭重量的增加，在三种IWC设计中，从热顶开始的收缩腔更深。G / L 0.5 <恒定（G和L分别是温度梯度和冷却速率）。利用该标准，可以预测中心线收缩孔隙率的程度。随后，利用三种兼容的设计，模拟结果发现中心线收缩孔隙率很严重。另外，值得注意的是，宏观隔离表现出不同的特征。
更新日期：2021-03-02
中文翻译：
重量兼容设计对铸锭凝固的影响
复杂而多样的铸锭模具问题困扰着特殊的钢铁企业。在此，描述了三种铸锭重量兼容（IWC）设计。39吨的模具适合浇铸最多45吨的钢水。研究了三种IWC设计对收缩腔，孔隙率和宏观偏析的影响。该仿真基于动量，能量和质量守恒方程的多相耦合模型。根据实验结果和以往的文献，确定了界面传热系数。通过有限差分法（FDM）模拟，研究了三种IWC设计对凝固的影响。获得了收缩孔隙率和宏观偏析的预测。随着铸锭重量的增加，在三种IWC设计中，从热顶开始的收缩腔更深。G / L 0.5 <恒定（G和L分别是温度梯度和冷却速率）。利用该标准，可以预测中心线收缩孔隙率的程度。随后，利用三种兼容的设计，模拟结果发现中心线收缩孔隙率很严重。另外，值得注意的是，宏观隔离表现出不同的特征。
京公网安备 11010802027423号