锻件超声探伤各标准中要求探伤人员密切注意锻件危险性缺陷——白点,但实际工作中往往容易把注意力集中在粗扫查是否存在按规定应发现的缺陷及对其定位、定量上。对白点缺陷非敏感性钢种尤会忽略。我厂历来要求对所发现的缺陷作定性估计,近来我们对一根材质为30Mn的轴锻件探伤,准确判定白点缺陷并经解剖验证,现把情况介绍如下。 Forging ultrasonic flaw detection standards require the inspectors pay close attention to forging dangerous defects - white spots, but the actual work is often easy to focus on the rough scan for the existence of defects should be found and its positioning, quantitative. Especially for non-sensitive white point defects. Our factory has always required qualitative assessment of the defects found. Recently, we test a shaft forgings with the material of 30Mn to accurately determine the defects of the white spots and verify the anatomy. Now we introduce the situation as follows.