蠕变试验用高温加热炉炉温稳定性研究  

Research on Temperature Stability of High Temperature Furnace for Creep Test

作　　者：吴安民 周同金 Wu Anmin;Zhou Tongjin(AECC Beijing Institute of Aeronautical Materials,Beijing100095,China;Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Beijing100095,China;Aviation Key Laboratory of Science and Technology on Materials Testing and Evaluation,Beijing100095,China;Key Laboratory of Aeronautical Materials Testing and Evaluation,Aero Engine Corporation of China,Beijing100095,China)

机构地区：[1]中国航发北京航空材料研究院,北京100095 [2]航空材料检测与评价北京市重点实验室,北京100095 [3]材料检测与评价航空科技重点实验室,北京100095 [4]中国航空发动机集团材料检测与评价重点实验室,北京100095

出　　处：《工程与试验》2022年第4期66-69,共4页Engineering and Test

摘　　要：对外壳尺寸为Ф370mm×500mm、炉膛尺寸为Ф100mm×500mm的蠕变试验用高温加热炉炉膛内37.5mm长度范围的温度场进行了有限元模拟计算和热电偶实测验证,模拟结果表明,在试样标距长度1.5倍的长度范围内,高温加热炉在600℃、900℃、1200℃加热时,当系统达到稳态后,均热带温度很稳定,几乎没有波动,与预设值相差不大,并且与热电偶采集的温度相差不大。均热带长度大于试样标距长度,高温炉加热温度场的稳定性较好。The temperature field of 37.5mm length of high temperature furnace is simulated by finite element method and verified by thermocouple experiment for creep tests of furnace shell sizeФ370mm×500mm and furnace chamber sizeФ100mm×500mm.The simulation results show that,in the length range of 1.5 times of the gauge length of specimen,when the high temperature furnace is heated at 600℃,900℃,1200℃,when the system reaches the steady state,the temperature of stable heating region is very stable,with almost no fluctuation and little difference from the preset value,and the temperature is not much different from that of the measured value of thermocouple.The stability of heating temperature field in high temperature furnace is better when the length of homogenization zone is larger than the length of specimen gauge.

关 键 词：蠕变试验 高温加热炉 有限元模拟 温度 

分 类 号：TB302.3[一般工业技术—材料科学与工程]