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Curved-surface steel plate residual stress ultrasonic detection transceiver device

A residual stress and detection device technology, which is applied in measurement devices, analysis of solids using sonic/ultrasonic/infrasonic waves, and material analysis using sonic/ultrasonic/infrasonic waves. , it is difficult for the sound beam to excite the desired waveform, etc.

Inactive Publication Date: 2013-04-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The magnetic memory device can only qualitatively analyze the stress concentration, but cannot measure the stress value
X-ray stress analyzer is difficult to achieve on-site measurement, and it is harmful to the human body
However, there are not many studies on the residual stress detection of the inner surface of the pipeline.
The critical refraction longitudinal wave is sensitive to stress. When the critical refraction longitudinal wave is used for stress detection, due to the influence of the curvature of the pipeline, it is difficult for the acoustic beam excited by the chip to excite the required waveform through waveform conversion.

Method used

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  • Curved-surface steel plate residual stress ultrasonic detection transceiver device
  • Curved-surface steel plate residual stress ultrasonic detection transceiver device

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Embodiment Construction

[0009] The specific embodiment of the present invention is described in detail below:

[0010] figure 1 It is a transceiver device for ultrasonic detection of residual stress on the outer surface of a pipeline, including a plexiglass wedge 1 , an ultrasonic transducer 2 , a fixing plate 3 , and a magnetic base 4 .

[0011] When testing the stress on the outer surface of the pipeline, the bottom surface of the plexiglass wedge 1 must be machined, and the curvature after processing is consistent with the curvature of the outer diameter of the pipeline. A refitted magnetic base is installed between the two wedges. After refitting, the magnetic base can provide a larger magnetic force to realize the coupling between the wedge 1 and the outer diameter of the pipeline.

[0012] When measuring, adjust the position of the detection device so that the line connecting the corresponding points of the two sensors is parallel to the busbar of the pipeline.

[0013] figure 2 It is a res...

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Abstract

The invention relates to a curved-surface steel plate residual stress ultrasonic detection transceiver device. The device comprises an organic glass wedge, an ultrasonic transducer, and a magnetic base. A sensor device has a one-transmitting and one-receiving structure. Two devices adopt the magnetic base for ensuring the close contact and coupling of the sensor and a test sample. Because of the influence of curvature, incidence angles of point of a sound beam are different. According to the invention, the problems of organic glass curvature and ultrasonic incident angle are explained during a design process. The design idea provided by the invention is innovative. With the device provided by the invention, a difficulty of pipe stress detection is well solved, and a good application prospect is provided.

Description

1. Technical field [0001] The invention designs an ultrasonic transceiver device suitable for detecting the residual stress of a curved steel plate. The device can excite critical refracted longitudinal waves to realize the detection of the residual stress near the surface of the curved steel plate. 2. Background technology [0002] At present, the residual stress detection using ultrasonic waves is mostly for flat plates, and pipes can be seen everywhere in daily life. When the residual stress existing on the inner or outer surface of the pipeline is too large, it may cause serious accidents. Therefore, the stress detection of pipelines has received more and more attention. [0003] At this stage, there are magnetic memory equipment and X-ray stress analyzers that can perform stress analysis on the outer surface of the pipeline. The magnetic memory device can only qualitatively analyze the stress concentration, but cannot measure the stress value. X-ray stress analyzer ...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/28
Inventor 徐春广杨向臣潘勤学肖定国徐浪李骁宋文涛郭军
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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