电渣熔铸中渣池集中高温区对电极熔化的影响研究  

Study on the Influence of High Temperature Region at Slag Bath Center to the Electrode's Melting in the Electroslag Casting Process

作　　者：赵志坚[1] 耿茂鹏[2] 饶磊[2] 

机构地区：[1]南昌大学理学院,江西南昌330047 [2]南昌大学机电工程学院,江西南昌330029

出　　处：《南昌大学学报（工科版）》2006年第3期239-243,共5页Journal of Nanchang University(Engineering & Technology)

基　　金：国家863计划资助项目(715-009-0110)

摘　　要：电渣熔铸是一种利用大电流通过渣池区域而产生的高温将自耗电极逐渐熔化的方法,其中渣池的温度分布特点直接决定了电极的熔化速度、提纯度以及铸锭的组织结构等,是熔铸系统中的关键区域.本文采用“反向熔铸”实验和“真假双电极熔铸”实验对渣池温度场分布进行了研究,并对实验模型进行了数值模拟.实验和模拟计算均证实了电极端部与金属熔池之间的渣池区域存在着一个集中的高温区,该高温区的存在对自耗电极的熔化起了极大的促进作用.Electroslag casting is a casting method that makes the self - consumable electrode melts in the high temperature slag bath by strong current. The thermal field of the slag bath determines the electrode＇s melting rate, purification rate and the ingot＇s microstructure directly. It is the key region in the casting system. In this paper, the reverse casting experiment and the true and false electrode casting have been done to study the slag bath＇s temperature field. At the same time it has been researched by numeric simulation method. A focus high temperature region between the electrode＇s end and the molten pool has been discovered. The high temperature region will improve the electrode＇s melting rate.

关 键 词：电渣熔铸 温度场 电场 高温区 熔化 

分 类 号：TF141[冶金工程—冶金物理化学]