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Ultrasonic inspection method, ultrasonic inspection device and integrated longitudinal wave, transverse wave and creeping wave ultrasonic angle beam probe

A technology of ultrasonic and oblique probes, which is applied in the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis and measuring devices using sound waves/ultrasonic waves/infrasonic waves. , to achieve the effect of improving flaw detection efficiency, improving accuracy and reducing missed detection rate

Active Publication Date: 2014-07-30
TEWARE
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  • Application Information

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Problems solved by technology

[0013] The present invention aims at the problem that the secondary longitudinal wave and shear wave are difficult to distinguish when the longitudinal wave oblique probe in the prior art is used for flaw detection, and the intergranular reflection is serious when the shear wave oblique probe is used for the flaw detection of coarse-grained welds, and it is sensitive to the anisotropic reflection of the plate. problem, and develop an ultrasonic flaw detection method, ultrasonic flaw detection device and longitudinal wave transverse wave climbing wave integrated ultrasonic angle probe

Method used

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  • Ultrasonic inspection method, ultrasonic inspection device and integrated longitudinal wave, transverse wave and creeping wave ultrasonic angle beam probe
  • Ultrasonic inspection method, ultrasonic inspection device and integrated longitudinal wave, transverse wave and creeping wave ultrasonic angle beam probe
  • Ultrasonic inspection method, ultrasonic inspection device and integrated longitudinal wave, transverse wave and creeping wave ultrasonic angle beam probe

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Embodiment Construction

[0069] Such as Figure 19 A method of ultrasonic flaw detection shown, comprising the following steps:

[0070]Step 1: Prepare an ultrasonic oblique probe with an incident angle of α, a longitudinal wave refraction angle of βL, and a shear wave refraction angle of βT. , and the speed of sound of the longitudinal wave and the shear wave in the second medium, combined with the preset condition that the refraction angle of the longitudinal wave and the refraction angle of the shear wave are complementary angles to each other to determine;

[0071] Step 2: Adjust the ultrasonic oblique probe;

[0072] Step 3: disposing the ultrasonic oblique probe on the outer surface of the workpiece to be inspected;

[0073] Step 4: sending out an ultrasonic beam from the ultrasonic oblique probe for flaw detection of the workpiece to be inspected;

[0074] Step 5: Judging whether the workpiece to be inspected has a defect and the corresponding defect position according to the reflected echo ...

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Abstract

The invention discloses an ultrasonic inspection method, an ultrasonic inspection device and an integrated longitudinal wave, transverse wave and creeping wave ultrasonic angle beam probe. The ultrasonic inspection method comprises the following steps: preparing an ultrasonic angle beam probe with an incident angle of alpha, a longitudinal wave refraction angle of betaL and a transverse wave refraction angle of betaT; adjusting the ultrasonic angle beam probe; arranging the ultrasonic angle beam probe on the outer surface of a workpiece to be detected; inspecting the workpiece to be detected by ultrasonic beams emitted from the ultrasonic angle beam probe; and judging whether the workpiece to be detected has defects and corresponding defect positions according to reflection echo received by the ultrasonic angle beam probe. Omni-directional scanning of a steel weld to be detected is realized, a detection leakage rate is reduced, the inspection efficiency is improved, the inspection cost is lowered, the probe traveling distance is reduced by 40 percent compared with that of a transverse wave angle beam probe, and the inspection accuracy can be improved to be over 90 percent.

Description

technical field [0001] The invention relates to the field of ultrasonic flaw detection, in particular to an ultrasonic flaw detection method, an ultrasonic flaw detection device, and an integrated longitudinal wave, shear wave, and creeping wave ultrasonic oblique probe. Background technique [0002] Ultrasonic angle probe is a device that realizes mutual conversion of electric energy and sound energy, and is also a key component for ultrasonic flaw detection. It is mainly composed of piezoelectric wafers, which can transmit and receive ultrasonic waves. The ultrasonic angle probes in the prior art usually include shear wave oblique For probes, longitudinal wave oblique probes and climbing wave oblique probes, the propagation direction of the shear wave and the vibration direction are perpendicular to each other, and the propagation direction of the longitudinal wave and the vibration direction are consistent. [0003] The A-type pulse ultrasonic flaw detection method in the...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/24
Inventor 曲世发
Owner TEWARE
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