球墨铸铁球化孕育处理动态调控方法及系统

doi:10.3901/JME.2017.20.054

机械工程学报 ›› 2017, Vol. 53 ›› Issue (20): 54-60.doi: 10.3901/JME.2017.20.054

球墨铸铁球化孕育处理动态调控方法及系统

李大勇, 徐振宇, 马旭梁, 王利华

哈尔滨理工大学材料科学与工程学院哈尔滨 150040

收稿日期:2016-10-10 修回日期:2017-04-11 出版日期:2017-10-20 发布日期:2017-10-20
通讯作者: 李大勇(通信作者),男,1958年出生,博士,教授,博士研究生导师.主要研究方向为铸造测控新技术及特种铸造装备.E-mail:dyli@hrbust.edu.cn
作者简介:徐振宇,男,1982年出生,博士,讲师.主要研究方向为球铁炉前质量检测与控制关键技术.E-mail:zhenyuxu2006@126.com
基金资助:
国家自然科学基金资助项目（51474082）。

Dynamic Method & System for Adjusting and Controlling Nodularization and Inoculation of Ductile Iron

LI Dayong, XU Zhenyu, MA Xuliang, WANG Lihua

School of Material Science & Engineering, Harbin University of Science and Technology, Harbin 150040

Received:2016-10-10 Revised:2017-04-11 Online:2017-10-20 Published:2017-10-20

摘要/Abstract

摘要： 原铁水的冶金状态对球化孕育处理效果及铸造缺陷形成倾向有重要影响，研究基于原铁水冶金状态综合评价的球化孕育处理工艺的优化控制与调节方法。选取有效特征参数表征原铁水冶金状态，并建立一个综合评价模型用于实际生产过程中原铁水合格冶金状态确定和球化剂添加量的精准计算。在球化处理、孕育处理和铸件浇注之前，均设置球化、孕育效果测评与调控环节，以实现生产过程的闭环控制。动态调控系统主要由原铁水冶金状态调控子系统、球化处理与效果调控子系统、孕育处理与效果调控子系统和铁水球化孕育最终微调子系统构成。经实验室条件下模拟运行证明，基于原铁水冶金状态评价的动态调控方法及系统可以实现球墨铸铁球化孕育处理的优化控制。

关键词: 动态调控, 灰色关联, 球化孕育, 球墨铸铁, 原铁水

Abstract: The metallurgy status of the base iron has important influence on the nodularization effectiveness, inoculation effectiveness as well as the forming tendency of casting defects. The dynamic optimization control and adjustment of the nodularization and inoculation process have been studied based on the comprehensive evaluation for the actual metallurgy status of the base iron. Some key characteristic parameters are selected to represent multiple metallurgy properties of the base iron effectively. A comprehensive evaluation model is established tentatively to determine the qualified metallurgy status of the base iron and calculate the optimal addition amount of nodularizer accurately. In the significant steps of the nodularization, inoculation and final pouring process, there are corresponding test and evaluation methods, as well as control and regulation methods for the nodularization and inoculation effectiveness, so as to realize the closed loop control of the production process for ductile iron. The dynamic adjustment and control system mainly includes:The base iron metallurgy status regulation and control subsystem;The nodularization process and effectiveness regulation and control subsystem;The inoculation process and effectiveness regulation and control subsystem;The final nodularization and inoculation fine-tuning subsystem. Under the experimental condition of laboratory, the simulation production results show that the dynamic control method based on the base iron metallurgy status evaluation and the system could achieve the optimal control of the nodularization and inoculation for ductile iron.

Key words: base iron, ductile iron, dynamic adjustment and control, grey correlation, nodularization and inoculation

中图分类号:

TG143

李大勇, 徐振宇, 马旭梁, 王利华. 球墨铸铁球化孕育处理动态调控方法及系统[J]. 机械工程学报, 2017, 53(20): 54-60.

LI Dayong, XU Zhenyu, MA Xuliang, WANG Lihua. Dynamic Method & System for Adjusting and Controlling Nodularization and Inoculation of Ductile Iron[J]. Journal of Mechanical Engineering, 2017, 53(20): 54-60.

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球墨铸铁球化孕育处理动态调控方法及系统

Dynamic Method & System for Adjusting and Controlling Nodularization and Inoculation of Ductile Iron

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