Ultrasonic wave residual stress test device

Abstract

An ultrasonic wave residual stress test device provided by the invention comprises an ultrasonic transducer set, a multichannel ultrasonic card, a signal processing board card and a control terminal. The ultrasonic transducer set includes a critical refraction longitudinal wave excitation probe and a critical refraction longitudinal wave reception probe, and also comprises a longitudinal wave flat probe capable of emitting ultrasonic wave longitudinal wave signals to a test area of a weldment to be tested and receiving longitudinal wave echo signals; the multichannel ultrasonic card includes an ultrasonic wave signal excitation module and an ultrasonic wave signal acquisition module; the signal processing board card includes a longitudinal wave attenuation degree calculation module, a database module and a residual stress calculation module; and the control terminal is configured to perform instruction control of each module in the multichannel ultrasonic card and the signal processing board card. The ultrasonic wave residual stress test device is able to correct the influence of the microscopic organization differences of welding area, the heat effect area and the base material area of a weldment to be tested on an ultrasonic wave residual stress test, so that the ultrasonic wave test precision of the welded joint residual stress is substantially improved.

Description

technical field

[0001] The invention relates to an ultrasonic residual stress testing device capable of correcting the influence of microstructure differences, and belongs to the field of non-destructive testing of welding residual stress. Background technique

[0002] Welding is the most important connection method in industrial production. The quality of welding determines the quality of welding products. The damage of welded joints caused by excessive welding residual stress is the most important welding damage. The non-destructive testing of residual stress of welded joints plays a very important guiding role in optimizing the welding process in production practice. The non-destructive testing methods for residual stress mainly include neutron diffraction method, synchrotron radiation method, magnetic particle method, X-ray diffraction method and ultrasonic testing method. Among them, the neutron diffraction method and the synchrotron radiation method are expensive in e...

Examples

specific Embodiment approach

[0057] figure 1 Shown, a specific embodiment of the present invention is: an ultrasonic residual stress testing equipment, including ultrasonic transducer group, multi-channel ultrasonic card 2.0, signal processing board 3.0 and control terminal 4.0, the ultrasonic transducer The group includes a critical refraction longitudinal wave excitation probe 1.1 and a critical refraction longitudinal wave receiving probe 1.2, and its structural characteristics are: the ultrasonic transducer group also includes a device that can transmit ultrasonic longitudinal wave signals to the test area of ​​the weldment to be tested and receive longitudinal wave echo signals Longitudinal wave flat probe 1.3, used for attenuation test in the test area of ​​the weldment to be tested;

[0058] The multi-channel ultrasonic card 2.0 includes:

[0059] The ultrasonic signal excitation module 2.1 is connected to the critical refraction longitudinal wave excitation probe 1.1 and the longitudinal wave fla...

Embodiment 2

[0069] An ultrasonic residual stress testing device, including an ultrasonic transducer group, a multi-channel ultrasonic card 2.0, a signal processing board 3.0 and a control terminal 4.0, the ultrasonic transducer group includes a critical refraction longitudinal wave excitation probe 1.1 and a critical refraction longitudinal wave receiving Probe 1.2, its structural features are: the ultrasonic transducer group also includes a longitudinal wave flat probe 1.3 that can transmit ultrasonic longitudinal wave signals to the test area of ​​the weldment to be tested and receive longitudinal wave echo signals, and is used for testing the weldment to be tested Attenuation test in the area;

[0070] The multi-channel ultrasonic card 2.0 includes:

[0071] The ultrasonic signal excitation module 2.1 is connected to the critical refraction longitudinal wave excitation probe 1.1 and the longitudinal wave flat probe 1.3, and is used to excite the critical refraction longitudinal wave ex...

Embodiment 3

[0080] An ultrasonic residual stress testing device, including an ultrasonic transducer group, a multi-channel ultrasonic card 2.0, a signal processing board 3.0 and a control terminal 4.0, the ultrasonic transducer group includes a critical refraction longitudinal wave excitation probe 1.1 and a critical refraction longitudinal wave receiving Probe 1.2, its structural features are: the ultrasonic transducer group also includes a longitudinal wave flat probe 1.3 that can transmit ultrasonic longitudinal wave signals to the test area of ​​the weldment to be tested and receive longitudinal wave echo signals, and is used for testing the weldment to be tested Attenuation test in the area;

[0081] The multi-channel ultrasonic card 2.0 includes:

[0082] The ultrasonic signal excitation module 2.1 is connected to the critical refraction longitudinal wave excitation probe 1.1 and the longitudinal wave flat probe 1.3, and is used to excite the critical refraction longitudinal wave ex...

technical field

[0001] The invention relates to an ultrasonic residual stress testing device capable of correcting the influence of microstructure differences, and belongs to the field of non-destructive testing of welding residual stress. Background technique

[0002] Welding is the most important connection method in industrial production. The quality of welding determines the quality of welding products. The damage of welded joints caused by excessive welding residual stress is the most important welding damage. The non-destructive testing of residual stress of welded joints plays a very important guiding role in optimizing the welding process in production practice. The non-destructive testing methods for residual stress mainly include neutron diffraction method, synchrotron radiation method, magnetic particle method, X-ray diffraction method and ultrasonic testing method. Among them, the neutron diffraction method and the synchrotron radiation method are expensive in e...

Examples

specific Embodiment approach

[0057] figure 1 Shown, a specific embodiment of the present invention is: an ultrasonic residual stress testing equipment, including ultrasonic transducer group, multi-channel ultrasonic card 2.0, signal processing board 3.0 and control terminal 4.0, the ultrasonic transducer The group includes a critical refraction longitudinal wave excitation probe 1.1 and a critical refraction longitudinal wave receiving probe 1.2, and its structural characteristics are: the ultrasonic transducer group also includes a device that can transmit ultrasonic longitudinal wave signals to the test area of ​​the weldment to be tested and receive longitudinal wave echo signals Longitudinal wave flat probe 1.3, used for attenuation test in the test area of ​​the weldment to be tested;

[0058] The multi-channel ultrasonic card 2.0 includes:

[0059] The ultrasonic signal excitation module 2.1 is connected to the critical refraction longitudinal wave excitation probe 1.1 and the longitudinal wave fla...

Embodiment 2

[0069] An ultrasonic residual stress testing device, including an ultrasonic transducer group, a multi-channel ultrasonic card 2.0, a signal processing board 3.0 and a control terminal 4.0, the ultrasonic transducer group includes a critical refraction longitudinal wave excitation probe 1.1 and a critical refraction longitudinal wave receiving Probe 1.2, its structural features are: the ultrasonic transducer group also includes a longitudinal wave flat probe 1.3 that can transmit ultrasonic longitudinal wave signals to the test area of ​​the weldment to be tested and receive longitudinal wave echo signals, and is used for testing the weldment to be tested Attenuation test in the area;

[0070] The multi-channel ultrasonic card 2.0 includes:

[0071] The ultrasonic signal excitation module 2.1 is connected to the critical refraction longitudinal wave excitation probe 1.1 and the longitudinal wave flat probe 1.3, and is used to excite the critical refraction longitudinal wave ex...

Embodiment 3

[0080] An ultrasonic residual stress testing device, including an ultrasonic transducer group, a multi-channel ultrasonic card 2.0, a signal processing board 3.0 and a control terminal 4.0, the ultrasonic transducer group includes a critical refraction longitudinal wave excitation probe 1.1 and a critical refraction longitudinal wave receiving Probe 1.2, its structural features are: the ultrasonic transducer group also includes a longitudinal wave flat probe 1.3 that can transmit ultrasonic longitudinal wave signals to the test area of ​​the weldment to be tested and receive longitudinal wave echo signals, and is used for testing the weldment to be tested Attenuation test in the area;

[0081] The multi-channel ultrasonic card 2.0 includes:

[0082] The ultrasonic signal excitation module 2.1 is connected to the critical refraction longitudinal wave excitation probe 1.1 and the longitudinal wave flat probe 1.3, and is used to excite the critical refraction longitudinal wave ex...

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