摘要
研制了一款用于制造大型客车、货车铝合金轮毂棒坯的锻前加热步进梁式加热炉。介绍了步进梁式加热炉的组成及为解决关键性问题所采用的手段。采用流体计算动力学（CFD）软件优化了炉内导风机构,提高了炉温均匀性;将动静梁设计成相同齿面结构且动梁前进距离小于1个齿距,并且使工件在炉内前进的同时自旋转一定角度,以提高工件的加热均匀性。实践证明：该加热炉具有加热速度快、产量大、加热时径向芯表温度均匀、节能降耗、自动化程度高、运行稳定可靠等优点。经该加热炉加热的铝轮毂棒坯温度与金相组织完全满足后序锻造工艺的要求,为下一步铝轮毂成形打下了良好的温度基础。
A stepping beam heating furnace for pre-forging heating of aluminum alloy wheel hub billets used for large buses and trucks was developed,and its components and the methods solving the key problems were introduced. Then,the in-furnace air guiding mechanism was optimized by fluid calculation kinetics software CFD to enhance furnace temperature uniformity,and the dynamic and static beams were designed to have the same tooth surface structure as well as the moving beam travel distance was less than 1 pitch. Furthermore,the workpiece was heated in the furnace while rotating at a certain angle to improve the heating uniformity of workpiece. The production practice proves that the heating furnace has the advantages of high heating speed,large output,uniform radial core temperature during heating,energy saving,high automation,stable and reliable operation. Thus,the temperature and metallographic structure of aluminum alloy wheel hub billet treated by the furnace can meet the following forging process requirements and provide a good temperature foundation for the next forming process of aluminum alloy wheel hub.
作者
张文良
罗平
李爱国
苏航
周彤
孙萌
李贤君
Zhang Wenliang;Luo Ping;Li Aiguo;Su Hang;Zhou Tong;Sun Meng;Li Xianjun(Beijing Research Institute of Mechanical ＆ Electrical Technology,Beijing 100083,China)
出处
《锻压技术》
CAS
CSCD
北大核心
2018年第11期94-98,共5页
Forging & Stamping Technology
基金
“高档数控机床与基础制造装备”科技重大专项(2018ZX04010010)
关键词
铝合金轮毂
锻前加热
步进梁式加热炉
温度均匀性
自动控制
aluminum alloy wheel hub
pre-forging heating
stepping beam heating furnace
temperature uniformity
automatic control
