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钢锭冒口高度优化模拟研究
Study on Riser Height Simulation and Optimization of Steel Ingot
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- DOI:
- 作者:
- 朱作鑫 徐亚东
ZHU Zuoxin;XU Yadong
- 作者单位:
- 日照市科学技术情报研究所 日照市产品质量监督检验所
Institute of Scientific and Technical Information of Rizhao,Rizhao 276800,China;Rizhao Institute of Supervision&Inspection on Product Quality,Rizhao 276800,China
- 关键词:
- P91耐热钢 钢锭 凝固模拟 冒口高度
P91 steel steel ingot simulation of solidification riser height
- 摘要:
- 采用Anycasting软件模拟分析了不同冒口高度P91钢锭凝固过程,预测分析了钢锭内部缺陷分布情况。为验证模拟准确性,采用原工艺和优化冒口高度后的工艺进行模铸试验,对比研究了模拟结果与试验结果缩孔缺陷位置。结果表明,原工艺冒口高度设计会导致钢锭凝固时产生缩孔缺陷,优化冒口高度后能够增强冒口的补缩作用,防止在钢锭心部因凝固收缩导致缩孔产生,显著改善钢锭的性能。The solidification process of P91 steel ingot with different riser heights was simulated.The distribution of shrinkage cavity was predicted by Anycasting software.For the accuracy of simulation,using the original process and optimize riser height after mould casting experiment,contrast examined the results of simulation and test results of shrinkage cavity defects.The results show that the riser height original mould casting process design could lead to ingot solidification shrinkage cavity defects are produced,after optimization of riser height can enhance the feeding effect of risers,prevent the shrinkage caused by solidification shrinkage of steel ingot the core production,significantly improve the performance of the steel ingot.