Study on the Effects of EMS Stirring Intensity on Carbon Homogeneity of 360 mm×450 mm Gear Steel Bloom and Control
-
摘要: 基于国内某厂360 mm×450 mm断面连铸装备条件，开展组合式电磁搅拌技术在20CrMnTiH （FQ）系列齿轮钢大方坯均质性控制的应用研究。通过数值模拟计算确定组合式电磁搅拌合理安装位置，凝固末端电磁搅拌安装在距离结晶器液面10.0~11.0 m区域；研究不同组合电磁搅拌工艺参数的效果，通过对铸坯均质性控制进行全面对比，最终以实际磁场强度为基础，研究制定20CrMnTiH （FQ）系列齿轮钢大方坯均质性控制最佳组合电搅工艺参数为M-EMS：（280±5）×10-4 T，F-EMS：（300±5）×10-4 T，铸坯C元素偏析度标准均方差均值为0.052，极差为0.027。Abstract: Application research on 20 CrMnTiH(FQ) gear steel bloom by combined-EMS technology for homogeneity controlling was carried out on a 360 mm×450 mm continuous casting machine..The specific install position of EMS had been determined based on the result of numerical simulation calculate,and 10.0~11.0 m far away from mold liquid steel surface is the suitable position.The EMS process parameters have been researched and the effects of processes on homogeneous control have been compared.Process parameters that suitable for 20 CrMnTiH(FQ) gear steel bloom homogeneity control have been found out based on the actual magnetic intensity,that's M-EMS:(280±5)×10-4 T,F-EMS:(300±5)×10-4 T.Effective control for homogeneity of bloom have been realized,the average of standard mean square deviation for the degree of segregate is 0.052,and range is below 0.027.
-
Key words:
- bloom /
- gear steel /
- homogeneity /
- combined EMS
-
点击查看大图
计量
- 文章访问数: 21
- HTML全文浏览量: 6
- PDF下载量: 4
- 被引次数: 0
下载:
