锅炉管内壁氧化皮厚度测量影响因素分析

本文针对锅炉管内壁氧化皮厚度的超声波测量,研究了超声波在氧化皮中的传播速度、氧化皮分层、剥落、氧化皮与金属基体间隙等因素对测量准确性的影响规律,同时给出了典型情况下的测量波形。研究结果对氧化皮厚度超声波测量仪器的使用,提高测量准确性具有指导及参考意义。

The influence rule of ultrasonic velocity, delamination and desquamation of oxide-scale clearance between metal base and oxide-scale on the measure veracity of oxide-scale thickness was studied for the ultrasonic measurement of oxide-scale of inner wall of boiler tube. Meanwhile, the ultra sonic waveforms were presented for the representative cases. The study of this paper has guidance meaning for the use of ultrasonic measuring apparatus and enhancing the measurement veracity