摘要
基于某钢厂的蓄热室步进式加热炉,以炉内的TA1钛坯为研究对象,建立传热的数学模型和加热过程的有限元模型,开展钛坯在炉内加热过程中的温度分布研究。研究炉膛温度和钛坯入炉温度对钛坯加热过程中最大断面温差的影响,以及预热段温度和一加热段温度对满足出炉要求钛坯芯部温度的加热时间影响。结果表明:钛坯经过预热段和加热段加热时,其最高温度一直位于端面角部,最低温度位于钛坯芯部,而经过均热段后,角部温度最低。预热段温度每升高5℃,最大断面温差增加1~2℃,钛坯入炉温度每升高50℃,最大断面温差减小3~8℃;预热段温度每升高10℃,芯部温度满足出炉要求的时间减少1~2 min,一加热段温度每升高10℃,芯部温度满足出炉要求的时间减少4~6 min。
Based on the walking-beam-type reheating furnace in a certain steel plant,the TA1 titanium billet in the furnace was taken as the research object,and the mathematical model of heat transfer and the finite element model of heating process were established to study the temperature distribution of titanium billet in the heating process.The effects of furnace temperature and inlet temperature of titanium billet on the maximum temperature difference of cross section in the heating process of titanium billet were studied,and the effects of preheating zone temperature and heating zone(I)temperature on the heating time to meet the requirement of tapping temperature of titanium billet core were studied.The results show that the maximum temperature of the titanium billet is always at the corner of the end face and the minimum temperature is at the core of the titanium billet when the titanium billet is heated by the preheating zone and the heating zone(I),while the corner temperature is the lowest after the soaking zone.When the preheating temperature increases by 5℃,the maximum section temperature difference increases by 1~2℃,and when the titanium billet temperature increases by 50℃,the maximum section temperature difference decreases by 3~8℃.When the temperature of preheating zone increases by 10℃,the time for the core to meet the requirement of furnace discharge reduces by 1~2 min.When the temperature of heating zone(I)increases by 10℃,the time for the core to meet the requirement of furnace discharge reduces by 4~6 min.
作者
向国进
罗许
耿乃涛
张安康
李俊洪
于辉
Xiang Guojin;Luo Xu;Geng Naitao;Zhang Ankang;Li Junhong;Yu Hui(School of Mechanical Engineering,Yanshan University,Qinhuangdao 066000,Heibei,China;State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Panzhihua 617000,Sichuan,China;Chengdu Advanced Metal Material Industrial Technology Research Institute Co.,Ltd.,Chengdu 610300,Sichuan,China)
出处
《钢铁钒钛》
CAS
北大核心
2021年第6期191-198,共8页
Iron Steel Vanadium Titanium
基金
河北省自然科学基金(E202103237)
中央引导地方科技发展资金项目(216 Z1002 G)。
关键词
TA1钛坯
步进式加热炉
传热
有限元模型
温度分布
TA1 titanium slab
walking-beam-type furnace
heat transfer
finite element model
temperature distribution
