论文部分内容阅读
1.前言在现代冶金工业中,一个极为重要的问题是按照国际标准对产品进行无损检验,以保证产品质量。涡流检验技术是无损检验技术中的一种方法。其应用范围很广,不仅用于管、棒、线材的检验,还可用于板、带材的检验。根据日本标准JIS、GO583,采用涡流探伤检验钢管,可代替钢管焊缝水压试验。徐州钢铁厂在1981年首次从日本引进镀锌焊管成套设备,并且配有焊管在线涡流探伤仪,在焊管生产线上能检验出焊缝中存在的所有缺陷。检测时探头与焊管表面不接触,
1. Introduction In the modern metallurgical industry, a very important issue is the non-destructive testing of products in accordance with international standards to ensure product quality. Eddy current testing is one of the nondestructive testing techniques. Its wide range of applications, not only for pipe, rod, wire inspection, but also for the plate, strip testing. According to Japanese standard JIS, GO583, the use of eddy current testing of steel pipe testing, steel pipe welder to replace water pressure test. Xuzhou Iron and Steel Plant in 1981 for the first time imported from Japan, galvanized pipe welding equipment, and is equipped with a pipe eddy current flaw detector, the pipe production line can detect any defects in the weld. Detection of the probe and the pipe surface is not in contact,