论文部分内容阅读
一、目的制定本条例的目的,是提出标准试块制造中的各项技术要求,以及标准试块的适用范围和使用方法。二、本条例的适用范围在采用脉冲反射式探伤仪,探测频率在2.5～5MC,以及用直径在12毫米以上的直探头对一般钢材和平面锻件进行探伤时,凡与标准试块有关的各项工作,都应遵从本条例各项规定。三、标准试块制造中的技术要求本标准试块,是供超声波探伤时测定缺陷当量大小,探伤灵敏度等参考数据的一组钢质参考试块。 1.试块的形状及加工要求(见下图):
I. Purpose The purpose of this Regulation is to set forth the technical requirements for the manufacture of standard test blocks and the scope of application and use of standard test blocks. Second, the scope of the Ordinance in the use of pulse reflective flaw detector, the detection frequency of 2.5 ~ 5MC, and with a diameter of 12 mm or more straight probe on the general steel and forgings for flaw detection, where the standard test blocks related to Work, should comply with the provisions of this Ordinance. Third, the technical requirements of the manufacture of standard test blocks The standard test block is a set of steel reference test block for the determination of the equivalent size of the defect, detection sensitivity and other reference data when ultrasonic flaw detection. 1. Test block shape and processing requirements (see below):