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Automatic scanning device for ultrasonic phased array pipe detection

An ultrasonic phased array and pipeline inspection technology, which is applied in measuring devices, analyzing solids using sonic/ultrasonic/infrasonic waves, and using sonic/ultrasonic/infrasonic waves for material analysis, etc. , to achieve the effect of improving accuracy, improving automation, and avoiding scanning deviation

Pending Publication Date: 2019-04-26
国能锅炉压力容器检验有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (3) Phased array inspection can have B-scan, D-scan, S-scan and C-scan at the same time, and a three-dimensional graphic can be established through modeling. The defect display is very intuitive, even people who do not understand NDT can understand it, and Conventional ultrasound can only distinguish defects by waveform
[0006] (4) Ultrasonic phased array can detect complex workpieces, such as the blade root of turbine blades. Conventional ultrasonic detection has a large blind area because of the single beam angle of the probe, resulting in missed detection

Method used

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  • Automatic scanning device for ultrasonic phased array pipe detection
  • Automatic scanning device for ultrasonic phased array pipe detection
  • Automatic scanning device for ultrasonic phased array pipe detection

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Experimental program
Comparison scheme
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specific Embodiment approach

[0071] 1. According to the phased array focusing law, calculate the distance between the front edge of the probe and the measured part.

[0072] 2. Select the track according to the diameter.

[0073] 3. Fix the two sets of tracks at the corresponding positions, adjust the angle of the third connecting rod, so that the four first rollers can roll freely in the roller groove.

[0074] 4. Fix the probe in the probe groove and adjust the position of the slider to meet the requirements of 1.

[0075] 5. Start the traction device, adjust the rotation speed of the motor, and make it as large as possible without affecting the detection quality, so as to improve the detection speed.

[0076] 6. Implement testing.

[0077] 7. The detection is completed.

[0078] Beneficial effects of the present invention:

[0079] The present invention designs an automatic scanning device for a phased array probe;

[0080] It is suitable for the detection of different thickness materials and diff...

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Abstract

The invention discloses an automatic scanning device for ultrasonic phased array pipe detection. A sliding rail is laid on a pipeline part, a connecting support drives a probe groove used for clampinga probe to slide along the sliding rail, it is achieved that the probe scans on the pipeline part according to a preset path, scanning deviations of the probe are avoided, and in this way, the detection precision is improved. Besides, by adding a traction device to the device, pipeline welding joints are easily automatically scanned by using the phased array probe, and therefore, the automation degree of detection is improved.

Description

technical field [0001] The invention relates to the technical field of ultrasonic detection, in particular to an automatic scanning device for ultrasonic phased array pipeline detection. Background technique [0002] The principle of ultrasonic phased array is similar to that of conventional ultrasonic detection, both of which are based on the principle of pulse reflection method. Compared with conventional ultrasound, the advantages of ultrasonic phased array mainly include the following aspects: [0003] (1) The phased array adopts S-scan, that is, it can have ultrasonic waves from many angles at the same time, which is equivalent to having probes with multiple angles working at the same time, so the phased array does not need sawtooth scanning, just move the probe along the weld, The detection efficiency is higher. Suitable for automated production, and mass production. [0004] (2) Phased array can have focusing function, but conventional ultrasonic generally does not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/26G01N29/265
CPCG01N29/04G01N29/262G01N29/265G01N2291/0234G01N2291/0232G01N2291/267
Inventor 张广兴
Owner 国能锅炉压力容器检验有限公司
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