高温蠕变持久试验中双层炉丝高温炉的设计及应用  

Design and Application of High Temperature Furnace with Double Stove Wires in High Temperature Creep Rupture Test

作　　者：王贵勇 祝铁柱 吴倩颖[1,2] 杨雷岗 类成华[1,2] Wang Guiyong;Zhu Tiezhu;Wu Qianying;Yang Leigang;Lei Chenghua(NCS Testing Technology Co.,Ltd.Beijing 100094,China;Central Iron ＆ Steel Research Institute,Beijing 100094,China)

机构地区：[1]钢研纳克检测技术股份有限公司,北京100094 [2]钢铁研究总院,北京100094

出　　处：《工程与试验》2018年第2期89-92,共4页Engineering and Test

摘　　要：设计了一种双层炉丝高温炉,用于高温蠕变持久试验领域。高温炉炉丝由工作炉丝和备用炉丝组成,炉丝采用直径5mm的电炉丝。当试验机系统检测到工作炉丝断裂时,可自动快速地将炉丝的供电电路由工作炉丝切换到备用炉丝。此时,备用炉丝启动加热,高温炉继续正常工作,可以减少因炉丝断裂导致试验中断带来的损失。试验结果表明,双层炉丝高温炉解决了高温长时蠕变持久试验中高温炉炉丝断裂情况下试验难以继续进行的问题。同时,直径5mm的电炉丝满足了超高温(如1200℃)蠕变持久试验温度控制的需要。This paper presents a high temperature furnace with double electric stove wires for the test of high temperature creep rupture test. The high temperature adopts the 5 mm electric stove wire in diameter,and the wires are made up of the working stove wire and the alternate stove wire. When the tester system detects the working stove wire is fractured and it will automatically and quickly switch the power supply circuit from the working stove wire to the alternate stove wire. Then the alternate stove wire starts to heat to keep the high temperature furnace working,which reduces the loss caused by the interruption of test on account of fractured stove wire. The experimental results indicate that the high temperature furnace with double electric stove wires can solve the problem that when the stove wire is fractured and the test is difficult to proceed on the long time and high temperature creep rupture test with the classical high temperature furnace. Besides,the 5 mm in diameter electric stove wire can meet the temperature control requirements in the ultra-high temperature（ such as 1200℃） creep rupture test.

关 键 词：高温蠕变 高温炉 双层炉丝 

分 类 号：TH87[机械工程—仪器科学与技术]