搅拌摩擦焊中的测温研究  

Study on Thermometry During Friction Stir Welding

作　　者：胡亚真[1] 白钢[1] 付春坤[1] 苏利龙[1] 高大路[1] 

机构地区：[1]西北工业大学陕西省摩擦焊接重点实验室,陕西西安710072

出　　处：《热加工工艺》2011年第11期158-160,共3页Hot Working Technology

摘　　要：热电偶测温和红外仪测温都是现代测温技术中的主要测温方法。但由于热电偶测温的滞后性和红外仪测温易受发射率影响的原因,测温的准确度难以提高。在基于搅拌摩擦焊接动态测温试验基础上,本文提出了一种根据热电偶测温原理对热电偶测温动态误差进行校正的方法,并通过红外仪测温对校正结果进行了检验,取得了较理想的结果,对提高测温准确度具有一定的意义。Thermo-couple and infrared instrument are both important thermometry instrument during modem thermometry practice, but because of the proper hysteretic properties of thermo-couple and the emittance of infrared instrument, the accuracy of thermometry can＇t be improved. A correction way based on the thermocouple thermometry principle during friction stir welding was introduced, and the correct result was checked by infrared instrument. It has a significance on improving the accuracy of thermometry.

关 键 词：热电偶测温 红外仪测温 滞后性 发射率 误差校正 

分 类 号：TG453.9[金属学及工艺—焊接]