基于二冷配水优化的65Mn板坯内部品质控制研究  

Study on Internal Quality Control of 65Mn Slab Based on Secondary Cooling Water Optimization

作　　者：孙立根 李晓斐 朱立光 刘阳 马立波 韩毅华 

机构地区：[1]华北理工大学冶金与能源学院河北省高品质钢连铸工程技术研究中心,河北唐山063009

出　　处：《铸造技术》2017年第2期372-376,共5页Foundry Technology

基　　金：河北省自然科学基金资助项目(E2014209144)

摘　　要：针对某厂生产65Mn板坯存在的中间裂纹、三角区裂纹等品质缺陷,利用ANSYS软件模拟其在实际工况下的运行状态,上述质量问题主要由冷却过程中铸坯温度场分布不合理进而引起应力场不均所导致。基于此,对65Mn板坯的二冷配水进行了优化,实际生产铸坯的低倍检测表明,优化后铸坯的品质得到明显改善。Aimed at the intermediate cracks, triangular area cracks and other quality defects of the 65 Mn slab in real production, the slab hot state under actual conditions was simulated by ANSYS. The results shown that those quality problems are caused by the uneven stress distribution which is decided by irrational temperature distribution in second cooling process. After optimizing of secondary cooling scheme, the quality of 65 Mn slab was improved obviously.

关 键 词：65Mn板坯 二冷配水 数值模拟 温度场 应力场 

分 类 号：TF777[冶金工程—钢铁冶金]