一、无缝钢管的原来检查方法钢管的缺陷一般分为裂纹状缺陷和压痕状缺陷。前者的检测,是使被检查材料磁化,用磁传感器检测从缺陷部位漏泄的磁束——“漏泄磁束探伤法”,在评价缺陷深度这一点上是优良的。后者的检测,是在被检查材料表面诱发涡电 First, the original seamless steel pipe inspection methods Pipe defects are generally divided into crack-like defects and indentation-like defects. The former detection is a magnetic flux that magnetizes a material to be inspected and detects a magnetic flux leaked from a defect site by using a magnetic sensor. The leaky magnetic flux flaw detection method is excellent in that the depth of defects is evaluated. The latter test, is to be inspected on the surface of the material induced eddy current