| Q345钢凝固组织的模拟计算 |
| |
| 引用本文： | 赵莉萍,李钊,袁雪,李建超.Q345钢凝固组织的模拟计算[J].包头钢铁学院学报,2014(2):123-127. |
| |
| 作者姓名： | 赵莉萍 李钊 袁雪 李建超 |
| |
| 作者单位： | 内蒙古科技大学材料与冶金学院;内蒙古工业大学材料与冶金学院; |
| |
| 基金项目： | 包头市科技计划项目(2012Z1006-6);内蒙古科技大学创新基金(2012NCL021) |
| |
| 摘 要： | 运用ProCAST软件对Q345钢凝固过程进行数值模拟.铸坯中心等轴晶率模拟结果与工业试验用钢检测结果相一致,同时应用CAFE机理研究了过热度对Q345钢铸坯凝固组织的影响及规律。结果表明,过热度对凝固组织结构影响较大,晶粒平均半径由75℃的0.231 mm降低到15℃的0.191 mm。因此,实际生产过程中,在保证钢液顺利浇注的情况下,综合考虑铸坯质量与生产顺利,过热度需控制在15℃左右为宜。
|
| 关 键 词： | 铸锭 凝固 组织 数值模拟 过热度 |
Simulation on the solidification microstructure of Q345 steel |
| |
| Affiliation: | ZHAO Li-ping;LI Zhao;YUAN Xue;LI Jian-chao(Materials and Metallurgy School,Inner Mongolia University of Science and Technology;Materials and Metallurgy School,Inner Mongolia University of Technology) |
| |
| Abstract: | Numerical simulation on solidification was carried out with a ProCAST software. The result of industrial test is consistent with that of the isometric grain of the simulation. The effect of the superheat degree on the frozen organization of Q345 was studied by using CAFE model of ProCAST. The result shows that the casting temperature greatly affects the solidification microstructure. When the superheat reduced form 75 ℃ to 15 ℃,the mean grain radius decreased from 0. 231 mm to 0. 191 mm. Therefore,the superheat temperature should be about 15 ℃ by comprehensive consideration of billet quality and smooth production while meeting the requirement of casting temperature for normal production. |
| |
| Keywords: | ingot casting solidification organization numerical simulation degree of superheat |
| 本文献已被 CNKI 维普 等数据库收录！ |
