CN220894220U - Reference block for ultrasonic detection of austenitic stainless steel phased array - Google Patents
Reference block for ultrasonic detection of austenitic stainless steel phased array Download PDFInfo
- Publication number
- CN220894220U CN220894220U CN202322605152.1U CN202322605152U CN220894220U CN 220894220 U CN220894220 U CN 220894220U CN 202322605152 U CN202322605152 U CN 202322605152U CN 220894220 U CN220894220 U CN 220894220U
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- rectangular groove
- phased array
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- austenitic stainless
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- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 229910000963 austenitic stainless steel Inorganic materials 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 17
- 230000006378 damage Effects 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims description 23
- 208000027418 Wounds and injury Diseases 0.000 claims description 11
- 208000014674 injury Diseases 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 11
- 239000000523 sample Substances 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 235000012431 wafers Nutrition 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003239 susceptibility assay Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses a reference block for ultrasonic detection of an austenitic stainless steel phased array, which belongs to the technical field of reference blocks for nondestructive detection, wherein a main body of the reference block comprises a first connecting block, a second connecting block and a connecting weld joint, and the first connecting block and the second connecting block are respectively fixedly connected to two ends of the connecting weld joint; the manual damage comprises an upper rectangular groove, a lower rectangular groove and a transverse through hole, wherein the upper rectangular groove is formed in the upper end of a connecting welding line, the lower rectangular groove is formed in the lower end of the connecting welding line, and the transverse through hole is formed in the middle of the connecting welding line.
Description
Technical Field
The utility model relates to the technical field of nondestructive testing reference blocks, in particular to an austenitic stainless steel phased array ultrasonic testing reference block.
Background
The basic idea of the ultrasonic phased array detection technology comes from the radar electromagnetic wave phased array technology. The ultrasonic phased array transducer is formed by a plurality of piezoelectric wafers with the same shape and the same size to form an array, each wafer independently emits ultrasonic beams, and each wafer unit is controlled and excited by an electronic system according to a certain rule and time sequence, so that the position of a control focus and the focusing direction are adjusted to form a focusing sound field.
The reference block is an important tool for checking and controlling the detection quality and working state when the instrument is produced and used, the probe is used for comparing the designated position of the reference block, the radiation direction of electromagnetic waves is adjusted, the probe is matched with the reference block to move until the reflected echo is detected, the received echo signal is maximum, namely, under the specific artificial injury condition, the stronger the detected signal is, the higher the sensitivity is, the highest the sensitivity of the calibration instrument can be calibrated by adjusting the parameters of the detection device until the detected signal is the strongest.
In recent years, phased array ultrasonic detection technology is widely applied to metal pipeline base materials and weld joint detection, with the continuous development of phased array ultrasonic detection technology, besides conventional sector scanning, electronic scanning and other methods, TFM, PC I, ACFM and other full-focus detection technologies are rapidly developed, and are more and more widely applied, and particularly the phased array ultrasonic detection technology has obvious effect in austenitic stainless steel weld joint phased array ultrasonic detection, but a reference block in the prior art does not adopt sector scanning and full-focus detection design for austenitic stainless steel weld joint phased array ultrasonic, errors exist in detection of weld joints, and the sensitivity of full-focus detection on defects on inner and outer surfaces is difficult to measure.
Disclosure of utility model
The utility model aims to provide a reference block for ultrasonic detection of an austenitic stainless steel phased array, which solves the technical problems that in the prior art, fan scanning and full focus detection are not adopted for ultrasonic detection of an austenitic stainless steel weld phased array, errors exist in detection of a weld, and the sensitivity of full focus detection on defects of inner and outer surfaces is difficult to measure.
The aim of the utility model can be achieved by the following technical scheme:
The utility model provides an austenitic stainless steel phased array ultrasonic testing's reference block, includes test block main part and artificial wound, wherein:
The test block main body comprises a first connecting block, a second connecting block and a connecting weld joint, wherein the first connecting block and the second connecting block are respectively and fixedly connected to two ends of the connecting weld joint;
The manual injury comprises an upper rectangular groove, a lower rectangular groove and a transverse through hole, wherein the upper rectangular groove is formed in the upper end of the connecting welding seam, the lower rectangular groove is formed in the lower end of the connecting welding seam, and the transverse through hole is formed in the middle of the connecting welding seam.
As a further scheme of the utility model: the transverse through holes, the upper rectangular grooves and the lower rectangular grooves are distributed on the same vertical plane.
As a further scheme of the utility model: the depth of the upper rectangular groove and the depth of the lower rectangular groove are 2 mm+/-0.5, and the width of the upper rectangular groove and the width of the lower rectangular groove are 2 mm+/-0.5.
As a further scheme of the utility model: the acoustic performance of the material of the test block main body is the same as that of the on-site checked workpiece.
As a further scheme of the utility model: the surface of the test block main body is a smooth metal surface.
As a further scheme of the utility model: the diameters of the transverse through holes are phi 2mm plus or minus 0.5.
As a further scheme of the utility model: the number of the transverse through holes is 5, and the depth positions of the axes of the 5 transverse through holes at the connecting weld joints are respectively 10mm, 30mm, 50mm, 70mm and 80mm.
As a further scheme of the utility model: the height of the test block main body along the vertical direction distributed by the transverse through holes is 90mm.
The utility model has the beneficial effects that:
(1) The actual manual injury formed on the connecting weld joint is utilized to conform to the actual condition in the actual machining process, so that the detection precision is improved, and a more accurate reference is provided for the detection of the weld joint defect;
(2) The connecting weld joint, the first connecting block and the second connecting block form a cuboid, so that direct measurement on the connecting weld joint becomes an alternative mode, and when the weld joint of the workpiece to be detected is flat, the direct measurement can improve the precision of detection calibration;
(3) The upper rectangular groove and the lower rectangular groove can be used for measuring defects of the upper surface and the lower surface of the welding seam, and the positions of bubbles in the welding seam can exist at the positions close to the surface, so that the problem of easy omission caused by the defects is avoided.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic illustration of an axially measured structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a schematic cross-sectional view of the structure at A-A in FIG. 2.
In the figure: 1-connecting weld joint, 11-upper rectangular groove, 12-transverse through hole, 13-lower rectangular groove, 2-first connecting block and 3-second connecting block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the utility model discloses a reference block for ultrasonic detection of an austenitic stainless steel phased array, which comprises a block main body and a manual injury, wherein:
The test block main body comprises a first connecting block 2, a second connecting block 3 and a connecting weld joint 1, wherein the first connecting block 2 and the second connecting block 3 are respectively and fixedly connected to two ends of the connecting weld joint 1;
The manual injury comprises an upper rectangular groove 11, a lower rectangular groove 13 and a transverse through hole 12, wherein the upper rectangular groove 11 is formed at the upper end of the connecting welding seam 1, the lower rectangular groove 13 is formed at the lower end of the connecting welding seam 1, and the transverse through hole 12 is formed in the middle of the connecting welding seam 1;
the first connecting block 2 and the second connecting block 3 serve as welded objects, the surfaces of the first connecting block 2 and the second connecting block 3 are smooth so that the probe can move smoothly on the surfaces of the test blocks to perform calibration detection, wherein the connecting weld joint 1, the first connecting block 2 and the second connecting block 3 form a cuboid, direct measurement on the connecting weld joint 1 also becomes an optional mode, and when the weld joint of a workpiece to be detected is flat, the direct measurement can improve the precision of detection calibration.
The transverse through holes 12 are multiple, the transverse through holes 12, the upper rectangular grooves 11 and the lower rectangular grooves 13 are distributed on the same vertical plane, and the upper rectangular grooves 11 and the lower rectangular grooves 13 are used for measuring defects of the upper surface and the lower surface of the welding seam.
As shown in FIG. 2, the depth D1 of the upper rectangular groove 11 and the lower rectangular groove 13 is 2mm + -0.5, and as shown in FIG. 3, the width H1 of the upper rectangular groove 11 and the lower rectangular groove 13 is 2mm + -0.5, and for the reference block, the size of the manual injury is the prior art, the design purpose of the reference block is difficult to realize due to overlarge or undersize, and the manual injury is machined, so that the size and the position stability of the manual injury are ensured.
The acoustic performance of the material of the test block main body is the same as that of the field inspected workpiece, namely, the material of the test block main body is the same as or similar to that of the field inspected workpiece, so that errors are reduced, and the size and shape of the connecting weld joint 1 are preferably the same as or similar to those of the field inspected workpiece.
The surface of the test block main body is a smooth metal surface, so that the probe can move on the surface of the test block main body.
The diameter of the transverse through holes 12 is in the range of phi 2mm plus or minus 0.5.
It should be noted that the size ranges of the through holes 12, the upper rectangular grooves 11 and the lower rectangular grooves 13 do not refer to the allowable machining errors, but can be used, for example, the depth of the upper rectangular grooves 11 is 1.5mm, the width is 1.5mm, the diameter of the through holes is 1.5mm, the reference block can be used for calibration at this time, for example, the depth of the upper rectangular grooves 11 is 2.5mm, the width is 2.5mm, the diameter of the through holes is 2.5mm, which can also be used for calibration, and the specific machining errors belong to the prior art, while the sizes of the through holes 12, the upper rectangular grooves 11 and the lower rectangular grooves 13 should tend to be uniform, therefore, the size ranges refer to the size ranges which can be selected on the basis of the uniform sizes of the through holes 12, the upper rectangular grooves 11 and the lower rectangular grooves 13.
The number of the transverse through holes 12 is 5, the depth positions of the axes of the 5 transverse through holes 12 at the position of the connecting weld joint 1 are respectively 10mm, 30mm, 50mm, 70mm and 80mm, the error range allowed by the specific size of the transverse through holes belongs to the prior art, and therefore the description is omitted.
The thickness of the test block body along the direction of the transverse through hole 12 is preferably 50mm, and as a conventional arrangement for saving materials, the height of the test block body along the vertical direction along which the transverse through hole 12 is distributed is 90mm, which also belongs to the prior art, and the error range allowed by the specific size of the test block body also belongs to the prior art.
The working principle of the utility model is as follows:
In use, when debugging the sensitivity curve is performed
Taking austenitic stainless steel weld joint phased array ultrasonic detection with the thickness of 60mm as an example, placing a phased array ultrasonic probe on one side of a connecting weld joint 1 on a test block main body, exciting sector scanning detection according to preset focusing rule parameters, modulating the echo of each angle of sector scanning to 80% +/-5% of a full screen of a transverse through hole 12 with the depth of 10mm, and taking the ultrasonic probe as reference sensitivity; next, each angle of sector scan was echoed by 80% ± 5% of full screen for a cross-hole 12 depth of 30mm and 70mm, respectively. The echoes of the through holes 12 of three depths at different angles form a sensitivity curve.
When performing a full focus detection sensitivity assay,
Taking austenitic stainless steel welding seam phased array ultrasonic detection with the thickness of 60mm as an example, placing a phased array ultrasonic probe on one side of a connecting welding seam 1 of a test block main body, exciting full-focus detection according to preset focusing rule parameters, and forming a detection image. In the detected image, the reflected signals of the through holes 12 with 5 different depths inside the connecting weld joint 1 should be displayed.
If the upper rectangular groove 11 on the upper surface and the lower rectangular groove 13 on the lower surface are displayed at the same time, and the signal to noise ratio of echo signals of the upper rectangular groove 11 and the lower rectangular groove 13 is more than or equal to 6dB, the detection sensitivity of the upper surface and the lower surface of the full focus detection process meets the requirement.
If only the echo signal of the upper rectangular groove 11 on the upper surface is displayed and the signal to noise ratio is more than or equal to 6dB, the upper surface detection sensitivity of the full focus detection process meets the requirement;
if only the echo signal of the lower rectangular groove 13 on the lower surface is displayed and the signal to noise ratio is more than or equal to 6dB, the lower surface detection sensitivity of the full focus detection process meets the requirement;
The other conditions show that the detection sensitivity of the inner surface and the outer surface of the full-focus detection process does not meet the requirement;
The signal modulation method can be selected according to actual detection requirements, and when the use requirements are not met, the signal modulation is required to be newly carried out until the detection requirements are met.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (8)
1. The utility model provides an austenitic stainless steel phased array ultrasonic testing's reference block, its characterized in that includes test block main part and artificial wound, wherein:
The test block main body comprises a first connecting block (2), a second connecting block (3) and a connecting weld joint (1), wherein the first connecting block (2) and the second connecting block (3) are respectively and fixedly connected to two ends of the connecting weld joint (1);
the manual injury comprises an upper rectangular groove (11), a lower rectangular groove (13) and a transverse through hole (12), wherein the upper rectangular groove (11) is formed in the upper end of the connecting welding seam (1), the lower rectangular groove (13) is formed in the lower end of the connecting welding seam (1), and the transverse through hole (12) is formed in the middle of the connecting welding seam (1).
2. The reference block for ultrasonic detection of an austenitic stainless steel phased array according to claim 1, wherein a plurality of transverse through holes (12) are provided, and the transverse through holes (12), the upper rectangular grooves (11) and the lower rectangular grooves (13) are distributed on the same vertical plane.
3. The reference block for ultrasonic detection of an austenitic stainless steel phased array according to claim 1, wherein the depth dimension ranges of the upper rectangular groove (11) and the lower rectangular groove (13) are 2mm + -0.5, and the width dimension ranges of the upper rectangular groove (11) and the lower rectangular groove (13) are 2mm + -0.5.
4. The reference block for ultrasonic testing of an austenitic stainless steel phased array of claim 1, wherein the acoustic properties of the material of the block body are the same as those of the workpiece being tested in situ.
5. The reference block for ultrasonic detection of an austenitic stainless steel phased array of claim 1, wherein the surface of the block body is a smooth metal surface.
6. A reference block for ultrasonic testing of an austenitic stainless steel phased array according to claim 2, characterized in that the diameter dimensions of the transverse through holes (12) are all in the range of phi 2mm ± 0.5.
7. A reference block for ultrasonic detection of an austenitic stainless steel phased array according to claim 2, characterized in that the number of the through holes (12) is 5, and the depth positions of the axes of the 5 through holes (12) at the connecting weld joint (1) are respectively 10mm, 30mm, 50mm, 70mm, 80mm.
8. The reference block for ultrasonic detection of an austenitic stainless steel phased array according to claim 7, characterized in that the height of the block body in the vertical direction along which the through holes (12) are distributed is 90mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322605152.1U CN220894220U (en) | 2023-09-25 | 2023-09-25 | Reference block for ultrasonic detection of austenitic stainless steel phased array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322605152.1U CN220894220U (en) | 2023-09-25 | 2023-09-25 | Reference block for ultrasonic detection of austenitic stainless steel phased array |
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| Publication Number | Publication Date |
|---|---|
| CN220894220U true CN220894220U (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322605152.1U Active CN220894220U (en) | 2023-09-25 | 2023-09-25 | Reference block for ultrasonic detection of austenitic stainless steel phased array |
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| Country | Link |
|---|---|
| CN (1) | CN220894220U (en) |
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2023
- 2023-09-25 CN CN202322605152.1U patent/CN220894220U/en active Active
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