目前,无损检测已广泛用于半成品生产时的监控以及成品的质量检查。无损检测包括超声波法、漏磁法和涡流法。这三种方法均能以其独特的灵敏度迅速、及时地显现产品中所有缺陷的部位。检测产品表面缺陷时宜用漏磁法和涡流法,而超声波法则宜用于产品芯部缺陷的检测。 At present, non-destructive testing has been widely used in the monitoring of semi-finished products production and finished product quality inspection. Nondestructive testing includes ultrasonic methods, magnetic flux leakage methods and eddy current methods. All three of these methods are capable of quickly and promptly revealing all the defects in a product with its unique sensitivity. Leakage detection method and eddy current method should be used to detect the surface defects of the products, while the ultrasonic law should be applied to the detection of the core defects.