摘要
连铸连轧工艺生产ZL114A铝杆的核心流程包括前端的连续铸造与后端的轧制,其中连续铸造阶段铸坯的内部组织分布及表面质量,是决定后端轧制工序能否顺利推进的关键因素。基于ProCAST开展ZL114A连铸连轧生产工艺中前端连续铸造阶段的工艺参数研究。首先,通过温度场模拟确定了ZL114A铝液凝固趋势及温度场的变化。其次,基于温度场模拟开展凝固组织模拟,设计7种模拟方案,确定组织内部晶体类型及分区特征。最后,现场实验生产7种方案的铸坯,并进行力学性能检测,验证了浇铸温度700~710℃、浇铸速度5.2~5.4 m/min、冷却水流量15~25 L/min是ZL114A连续铸造的适配工艺参数。研究实现了铸造参数优化、铸坯质量改善、实验周期缩短及降本增效的目标,为ZL114A铝杆连铸连轧生产提供技术支撑。
The core process of producing ZL114A aluminum rod by continuous casting and rolling(CCR)technology consists of front-end continuous casting and back-end rolling.Among them,the internal structure distribution and surface quality of the cast billet during the continuous casting stage are the key factors determining whether the subsequent rolling process can proceed smoothly.This study focuses on the process parameters of the front-end continuous casting stage in the ZL114A CCR production process,using ProCAST software.Firstly,the solidification trend of ZL114A molten aluminum and the variation of temperature field were determined through temperature field simulation.Secondly,based on the temperature field simulation,solidification structure simulation was carried out,and 7 simulation schemes were designed to identify the crystal types and zoning characteristics inside the structure.Finally,cast billets corresponding to the 7 schemes were produced through onsite experiments,and mechanical property tests were conducted.The results verified that the suitable process parameters for ZL114A continuous casting are casting temperature of 700~710℃,casting speed of 5.2~5.4 m/min,and cooling water flow rate of 15~25 L/min.This study achieves the goals of optimizing casting parameters,improving cast billet quality,shortening experimental cycle,and reducing costs while increasing efficiency,providing technical support for the CCR production of ZL114A aluminum rod.
作者
陈强
高世鹰
雷鹏飞
杨宁
毛华
乔波
张世全
张一川
CHEN Qiang;GAO Shiying;LEI Pengfei;YANG Ning;MAO Hua;QIAO Bo;ZHANG Shiquan;ZHANG Yichuan(Inner Mongolia Institute of Metal Materials,Baotou 014030,Inner Mongolia China)
出处
《铸造工程》
2025年第6期25-32,共8页
Foundry Engineering
基金
内蒙古自治区科技计划资助项目(2023YFHH0125)。
