EXPERIMENTAL STUDY ON WORKING POINT FOR SURFACE DEFECTS INSPECTION OF CONTINUOUS CASTING SLAB BY PEC TECHNOLOGY

被引：0

作者：

Ouyang, Qi ^{[1
]}

Li, WanHong ^{[1
]}

Zhang, XingLan ^{[2
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Sch Mat Sci & Engn, Chongqing 400030, Peoples R China

[2] Chongqing Univ Technol, Coll Comp Sci & Engn, Chongqing, Peoples R China

来源：

METALURGIA INTERNATIONAL | 2012年 / 17卷 / 10期

关键词：

pulsed eddy current; working point; time domain analysis; sensitivity; PROBE;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Online nondestructive testing is of great importance to reduce the production cost, and improve the casting-roll ingrate and the quality of casting slab for continuous casting slab. The Pulsed eddy current (PEC) have shown the potential to detect the defects of continuous casting slab. In this paper, we designs a PEC testing system which is applied to the specimens with crack simulating continuous casting slab. By comparing the arrangements of driving coil and testing coil, the working point of this system is optimized and a befitting probe against the weak susceptiveness of steel specimen is developed. As the parameter of driving source is set, an optimized working point is acquired by changing the frequency and variation of sensor.

引用

页码：24 / 30

页数：7

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