CN208888195U - A kind of shear wave conversion longitudinal wave ultrasound examination test block - Google Patents
A kind of shear wave conversion longitudinal wave ultrasound examination test block Download PDFInfo
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- CN208888195U CN208888195U CN201821331296.5U CN201821331296U CN208888195U CN 208888195 U CN208888195 U CN 208888195U CN 201821331296 U CN201821331296 U CN 201821331296U CN 208888195 U CN208888195 U CN 208888195U
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Abstract
The utility model relates to a kind of shear waves to convert longitudinal wave ultrasound examination test block.During practical ultrasound examination, common transverse wave double-bevel detector carries out scanning to weld seam, waveform conversion phenomena can be generated when ultrasonic wave is incident on this inclined-plane with certain certain angle, usually shear wave is converted into longitudinal wave and influences testing staff to the judgement to testing result.The utility model includes test block ontology, No.1 cross-drilled hole, No. two cross-drilled holes, bottom surface, inclined-plane, arc surface and top surface；Top surface is located at the top of test block ontology, and inclined-plane is located at the side of test block ontology, and arc surface is located at the other side of test block ontology, and inclined-plane and arc surface are arranged in opposite directions；Bottom surface is located at the bottom of test block ontology, and bottom surface has height in the vertical direction；No.1 cross-drilled hole and No. two cross-drilled holes are arranged in test block ontology, and the side of bottom surface is arranged in No.1 cross-drilled hole and No. two cross-drilled holes, and the height of No.1 cross-drilled hole is greater than the height of No. two cross-drilled holes.The utility model is conducive to improve the accuracy of testing staff's on-site test result.
Description
Technical field
The utility model relates to a kind of ultrasound examination test block, in particular to a kind of shear wave converts longitudinal wave ultrasound examination
Use reference block.
Background technique
With the fast development of thermal power industry, in power plant's main steam line welding processes, inside pipe wall is often machined
The step for forming inclined surface afterwards commonly uses transverse wave double-bevel detector and carries out scanning to weld seam, can not keep away during practical ultrasound examination
Exempt from that waveform conversion phenomena will be generated when ultrasonic wave is incident on this inclined-plane with certain certain angle, usually shear wave is converted into
Longitudinal wave and influence testing staff to the judgement to testing result.
Utility model content
The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide a kind of structure design conjunction
The shear wave of reason converts longitudinal wave ultrasound examination test block.
The technical scheme in the invention for solving the above technical problem is: a kind of shear wave conversion longitudinal wave ultrasound examination use
Test block, including test block ontology, which is characterized in that further include No.1 cross-drilled hole, No. two cross-drilled holes, bottom surface, inclined-plane, arc surface and top surface；
The top surface is located at the top of test block ontology, and the inclined-plane is located at the side of test block ontology, and the arc surface is located at test block ontology
The other side, the inclined-plane and arc surface are arranged in opposite directions；The bottom surface is located at the bottom of test block ontology, and the bottom surface is in vertical side
There is height upwards；The No.1 cross-drilled hole and No. two cross-drilled holes are arranged in test block ontology, and the No.1 cross-drilled hole and No. two cross-drilled holes are set
It sets in the side of bottom surface, the height of the No.1 cross-drilled hole is greater than the height of No. two cross-drilled holes.
Furthermore, the tilt angle on the inclined-plane is 20 ° ~ 50 °.Ultrasonic transverse wave conversion may be implemented in the functional areas
Longitudinal wave.
Furthermore, the diameter of the No.1 cross-drilled hole and No. two cross-drilled holes is 1mm ~ 3mm.Cross-drilled hole and bottom surface realize longitudinal wave and
The reflex of shear wave shape, in addition, cross-drilled hole is used to realize that probe K is worth measurement.
Furthermore, the arc surface is arcuate structure, and the radius of circle is 30mm ~ 70mm where the arc surface.Circle
Cambered surface is used to realize the measurement of Front distance and zero bias.
Furthermore, the width of the test block ontology is 10mm ~ 40mm, and length is 150 ~ 250mm, highly for 60 ~
100mm。
For above-mentioned each scale error no more than ± 0.05mm, cross-drilled hole is best within the scope of diameter 1mm ~ 2mm.Each component materials
For Q235B common metal material, detecting surface roughness is 3.2 μm.
The utility model compared with prior art, has the following advantages that and effect: the utility model can be very good to realize
Shear wave turns longitudinal wave, deepens understanding of the testing staff to ultrasonic wave waveform transfer principle, is conducive to improve testing staff's on-site test
As a result accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the waveform transition diagram of the utility model embodiment.
In figure: 1, No. two cross-drilled hole 2 of No.1 cross-drilled hole, bottom surface 3, inclined-plane 4, arc surface 5, top surface 6, probe 7.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Embodiment.
Referring to Fig. 1, the shear wave in the present embodiment converts longitudinal wave ultrasound examination test block, including test block ontology, further includes
1, No. two cross-drilled hole 2 of No.1 cross-drilled hole, bottom surface 3, inclined-plane 4, arc surface 5 and top surface 6；Top surface 6 is located at the top of test block ontology, inclined-plane 4
Positioned at the side of test block ontology, arc surface 5 is located at the other side of test block ontology, and inclined-plane 4 and arc surface 5 are arranged in opposite directions；Bottom surface 3
In the bottom of test block ontology, bottom surface 3 has height in the vertical direction；No.1 cross-drilled hole 1 and No. two cross-drilled holes 2 are arranged in test block ontology
Interior, the side of bottom surface 3 is arranged in No.1 cross-drilled hole 1 and No. two cross-drilled holes 2, and the height of No.1 cross-drilled hole 1 is greater than the height of No. two cross-drilled holes 2.
In the present embodiment, the tilt angle on inclined-plane 4 is 20 ° ~ 50 °.
In the present embodiment, the diameter of No.1 cross-drilled hole 1 and No. two cross-drilled holes 2 is 1mm ~ 3mm.
In the present embodiment, arc surface 5 is arcuate structure, and the radius of circle is 30mm ~ 70mm where arc surface 5.
In the present embodiment, the width of test block ontology is 10mm ~ 40mm, and it is highly 60 ~ 100mm that length, which is 150 ~ 250mm,.
Operating process is as follows:
Using 45 ° of shear waves, the transverse wave double-bevel detector 7 of frequency 4.0MHz, size 9mm × 9mm are incident on inclined-plane 4 to be turned after reflection
Shear wave all the way and all the way longitudinal wave are changed into, after wherein shear wave (in Fig. 1 shown in dotted line) encounters No.1 cross-drilled hole 1 along assigned direction, along original
Road is reflected back to be received by instrument, and it is anti-that a part of longitudinal wave (in Fig. 1 shown in reality) along assigned direction encounters 2 road Hou Yanyuan of No. two cross-drilled holes
It is emitted back towards and is received by instrument, another part longitudinal wave encounters bottom surface 3 and be reflected back along former road around No. two cross-drilled holes 2 to be received by instrument.Longitudinal wave
The velocity of sound is about 5900m/s in steel；Shear wave velocity of sound in steel is about 3230m/s, and different wave ultrasonic wave velocity of sound in steel is different,
Lead to the difference of passing time, waveform diagram shown in Fig. 2 is finally shown on instrument, wherein a, b and c back wave shown in Fig. 2
Shape respectively corresponds 1,2 and 3 reflecting interface shown in FIG. 1.
To sum up, which can be very good to realize that shear wave turns longitudinal wave, deepen testing staff to ultrasonic wave waveform transfer principle
Understanding, be conducive to improve testing staff's on-site test result accuracy.
By above-mentioned elaboration, those skilled in the art can implement.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to the utility model structure example explanation described in this specification.
The equivalence changes or simple change that all structure, feature and principles according to the utility model patent concept are done, are included in
In the protection scope of the utility model patent.Those skilled in the art of the present invention can be to described specific
Embodiment is done various modifications or additions or is substituted in a similar manner, structure without departing from the utility model or
Person beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (5)
1. a kind of shear wave converts longitudinal wave ultrasound examination test block, including test block ontology, which is characterized in that further include No.1 cross
Hole, No. two cross-drilled holes, bottom surface, inclined-plane, arc surface and top surface；The top surface is located at the top of test block ontology, and the inclined-plane is located at examination
The side of block body, the arc surface are located at the other side of test block ontology, and the inclined-plane and arc surface are arranged in opposite directions；The bottom surface
Positioned at the bottom of test block ontology, the bottom surface has height in the vertical direction；The No.1 cross-drilled hole and No. two cross-drilled hole settings exist
In test block ontology, the side of bottom surface is arranged in the No.1 cross-drilled hole and No. two cross-drilled holes, and the height of the No.1 cross-drilled hole is greater than No. two
The height of cross-drilled hole.
2. shear wave according to claim 1 converts longitudinal wave ultrasound examination test block, which is characterized in that incline on the inclined-plane
Rake angle is 20 ° ~ 50 °.
3. shear wave according to claim 1 converts longitudinal wave ultrasound examination test block, which is characterized in that the No.1 cross-drilled hole
Diameter with No. two cross-drilled holes is 1mm ~ 3mm.
4. shear wave according to claim 1 converts longitudinal wave ultrasound examination test block, which is characterized in that the arc surface is
Arcuate structure, the radius of circle is 30mm ~ 70mm where the arc surface.
5. shear wave according to claim 1 converts longitudinal wave ultrasound examination test block, which is characterized in that the test block ontology
Width be 10mm ~ 40mm, length be 150 ~ 250mm, be highly 60 ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821331296.5U CN208888195U (en) | 2018-08-17 | 2018-08-17 | A kind of shear wave conversion longitudinal wave ultrasound examination test block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821331296.5U CN208888195U (en) | 2018-08-17 | 2018-08-17 | A kind of shear wave conversion longitudinal wave ultrasound examination test block |
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| CN208888195U true CN208888195U (en) | 2019-05-21 |
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| CN201821331296.5U Active CN208888195U (en) | 2018-08-17 | 2018-08-17 | A kind of shear wave conversion longitudinal wave ultrasound examination test block |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855821A (en) * | 2020-06-05 | 2020-10-30 | 中车长江车辆有限公司 | Ultrasonic detection sound beam characteristic checking test block |
| CN113008283A (en) * | 2021-02-24 | 2021-06-22 | 大连交通大学 | System and method for measuring polarization direction of ultrasonic transverse wave |
| CN113834878A (en) * | 2021-08-18 | 2021-12-24 | 华电电力科学研究院有限公司 | Special test block and method for measuring horizontal linearity of combination of transverse wave angle probe and digital ultrasonic flaw detector |
-
2018
- 2018-08-17 CN CN201821331296.5U patent/CN208888195U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855821A (en) * | 2020-06-05 | 2020-10-30 | 中车长江车辆有限公司 | Ultrasonic detection sound beam characteristic checking test block |
| CN113008283A (en) * | 2021-02-24 | 2021-06-22 | 大连交通大学 | System and method for measuring polarization direction of ultrasonic transverse wave |
| CN113008283B (en) * | 2021-02-24 | 2022-08-09 | 大连交通大学 | System and method for measuring polarization direction of ultrasonic transverse wave |
| CN113834878A (en) * | 2021-08-18 | 2021-12-24 | 华电电力科学研究院有限公司 | Special test block and method for measuring horizontal linearity of combination of transverse wave angle probe and digital ultrasonic flaw detector |
| CN113834878B (en) * | 2021-08-18 | 2023-06-16 | 华电电力科学研究院有限公司 | Special test block and method for measuring horizontal linearity of combination of transverse wave oblique probe and digital ultrasonic flaw detector |
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