Method for detecting welding seam of pipeline or container by using flexible array eddy current probe

Method for detecting welding seam of pipeline or container by using flexible array eddy current probe

The invention relates to a method for detecting a welding seam of a pipeline or a container through a flexible array eddy current probe. The method is suitable for detecting discontinuity defects of the surface and the near surface of the welding seam of the pipeline or the container with the pipe d...

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Hauptverfasser: TANG XIATAO, LAI YONGQIANG, XIANG ZHI
Format: Patent
Sprache:chi ; eng
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator TANG XIATAO
LAI YONGQIANG
XIANG ZHI
description The invention relates to a method for detecting a welding seam of a pipeline or a container through a flexible array eddy current probe. The method is suitable for detecting discontinuity defects of the surface and the near surface of the welding seam of the pipeline or the container with the pipe diameter larger than DN50. The flexible array eddy current probe comprises a flexible wedge block base, an array coil and a high-elasticity gasket, the flexible wedge block base, the array coil and the high-elasticity gasket are tightly attached, a magnetic wheel for the eddy current probe to slide is embedded in the gasket, and a probe marking part for positioning the eddy current probe is arranged on the side wall of the flexible wedge block base. Through the combination of the array arrangement and two preset electronic scanning modes, the C scanning detection of the pipeline welding seam and the covered part of the heat affected zone is realized. The eddy current probe can be applied to a workpiece with a coatin
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The method is suitable for detecting discontinuity defects of the surface and the near surface of the welding seam of the pipeline or the container with the pipe diameter larger than DN50. The flexible array eddy current probe comprises a flexible wedge block base, an array coil and a high-elasticity gasket, the flexible wedge block base, the array coil and the high-elasticity gasket are tightly attached, a magnetic wheel for the eddy current probe to slide is embedded in the gasket, and a probe marking part for positioning the eddy current probe is arranged on the side wall of the flexible wedge block base. Through the combination of the array arrangement and two preset electronic scanning modes, the C scanning detection of the pipeline welding seam and the covered part of the heat affected zone is realized. 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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Method for detecting welding seam of pipeline or container by using flexible array eddy current probe
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