CN108872400A - A kind of small diameter pipe welded joint phased array ultrasonic detection reference block - Google Patents
A kind of small diameter pipe welded joint phased array ultrasonic detection reference block Download PDFInfo
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- CN108872400A CN108872400A CN201811044933.5A CN201811044933A CN108872400A CN 108872400 A CN108872400 A CN 108872400A CN 201811044933 A CN201811044933 A CN 201811044933A CN 108872400 A CN108872400 A CN 108872400A
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- 238000001514 detection method Methods 0.000 title claims abstract description 90
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 238000004088 simulation Methods 0.000 claims description 30
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 5
- 238000009659 non-destructive testing Methods 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 description 12
- 230000007547 defect Effects 0.000 description 11
- 239000000523 sample Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
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Abstract
The present invention relates to welding non-destructive testing devices, specifically a kind of small diameter pipe welded joint phased array ultrasonic detection reference block, including upper mass, bottom piece and the side block on the right side of the block of upper and lower part, for the center position of the upper mass and bottom piece width direction respectively at least provided with a reflector, the reflector is vertical clear opening.The test block is reasonable in design, easy to carry, and detection accuracy is high.
Description
Technical field
The present invention relates to welding non-destructive testing devices, and in particular to a kind of small diameter pipe welded joint phased array ultrasonic detection use
Reference block.
Background technique
Small diameter tube phased array supersonic probe is small and exquisite to have self-focusing function, and phased array instrument is using electronic control mode by spy
Fixed focusing rule is applied to multiple chips, to realize the deflection of acoustic beam, focus, and real time imagery is carried out to defect, for determination
The shape of defect, size and Orientation provide detectability more stronger than single probe system, therefore in small diameter pipe welded joint
Advantage is prominent in terms of non-destructive testing.
It, must in order to guarantee the accuracy, repeatability and comparativity of testing result as conventional ultrasound detection mode
Detection system must be calibrated with a sample with known fixed characteristic, therefore test block is also in phased array ultrasonic detection
Important tool.
After determining test object, phased array instrument needs to carry out the production i.e. DAC of angle gain amendment and sensitivity curve
Curve plotting.R50 R100 semicircle test block is often used for angle gain amendment at present to calibrate；Sensitivity curve is really
The fixed usually used test block of DL-1 series or GS series test block, measure the horizontal through-hole reflector reflected energy of different depth in test block
Feature draws sensitivity curve.
Currently, common reference block there are the shortcomings that have：
1, the detection faces of R50, R100 semicircle test block are planes, and the detection faces of small diameter tube are curved surfaces, and the two differs greatly, therefore
The detection that the angle gain corrected is applied to small diameter tube necessarily will cause the variation of angle gain, directly affect within the scope of fan sweeping
The detection sensitivity of each angle acoustic beam.Probe and voussoir are to use screw connection, frequently replace Flachkeil block and curved surface voussoir is easy to make
Screw, nut damage, can only scrap processing after connector damage, cause the increase of testing cost.
2, the test block of DL-1, GS series all be using horizontal through-hole as standard reflection body, reflecting surface similar to a cylindrical body outside
Surface.The internal flaw of welding point is mainly spot defect, strip defect, incomplete fusion, lack of penetration, crackle, reflectance signature
All there are larger differences with cylindrical body, cannot be well reflected real defect feature.
It 3, is all to be carried out using primary wave to standard reflection body when making sensitivity curve using DL-1, GS series test block
Testing and drawing.For small diameter pipe welded joint detection, primary wave predominantly detects the root of welding point, secondary wave（One
Secondary reflection wave）For detecting the middle and upper part of welding point, so the detection range of secondary wave is wider.Especially 4mm~8mm's is thin
Primary wave is almost taken less than in the detection of wall small diameter tube, it is most of to use two, tertiary wave combine detection, therefore in DL-1 or GS test block
On the sensitivity curve made with primary wave go to detect as scale and to judge small diameter pipe welded joint defect clearly unreasonable
's.
4, the test block of DL-1, GS series is all conventional ultrasound detection test block, since the phased array of system has not yet been formed in the country
Test block system is currently to use for reference conventional Ultrasound theory, therefore the test block whole design is applicable in for phased array detection technique
Property is not strong.Both test blocks only can be carried out the production of DAC curve for phased array, and purposes is single, other functions of test block
It is not applicable to phased array probe.Secondly the width of test block is less than the width of conventional phased array probe, probe and test block when test
Fitting is not easy to produce shaking tightly, has an impact to detection accuracy.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of small diameter pipe welded joint phased array ultrasonic detections with to having a competition
Block, it is reasonable in design, it is easy to carry.The concrete scheme of use is as follows：
A kind of small diameter pipe welded joint phased array ultrasonic detection reference block, including upper mass, bottom piece and be located at upper and lower part
The center position of side block on the right side of block, the upper mass and bottom piece width direction respectively at least provided with a reflector,
The reflector is vertical clear opening.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the top surface of the upper mass are upper detection
Face, the bottom surface of the bottom piece are lower detection faces；
The upper mass is equipped with a reflector IV, and the bottom piece is from left to right equipped with the staged point that height is gradually increased
Simulation component III, simulation component II and the simulation component I of cloth, the simulation component III are simulated and are divided on component II and simulation component I
It is not correspondingly provided with reflector III, reflector II and reflector I.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the reflector IV, reflector III, reflection
The diameter of body II and reflector I is 2mm；
The reflector IV is perpendicular to upper detection faces, and the reflector IV is away from upper mass left side 20mm；
The reflector III, reflector II and reflector I are each perpendicular to lower detection faces, and the reflector III is away from bottom piece left side
30mm, the reflector II is away from bottom piece left side 90mm, and the reflector I is away from bottom piece left side 160mm.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the upper mass with a thickness of 16mm, institute
Stating simulation component III, simulation component II and simulating the thickness of component I is respectively 4mm, 8mm and 12mm.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the upper detection faces and lower detection faces are
Arc surface and the two radius of curvature is identical, the radius of curvature of the upper detection faces and lower detection faces is 16mm, 18mm, 20mm,
Any one in 28mm and 36mm.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the side block are to repair for angle gain
The round test block in 1/4 just detected, its lateral surface are arc-shaped side detection faces, and the radius of the side detection faces is 50mm.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the upper mass, bottom piece and side block
Width be 23mm.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the test block material are carbon steel or P91.
Beneficial effects of the present invention are：
1, the test block uses clear opening as reflector, and the reflection is easy to process, the inside of energy approximate simulation small diameter pipe welded joint
Defect, and two, tertiary wave is calibrated using upper and lower side angle, it is more advantageous to the ultrasound examination of small diameter pipe welded joint.
Reflectance signature regularity of the reflector in small diameter tube detection is strong, utility value is high, breaks conventional test block structure design.
2, the test block overall construction design is reasonable, has most common two calibration functions of phased array ultrasonic detection system.
The distributing position of test block size and reflector have passed through theoretical calculation and phased array simulation of acoustic field, be not present between reflector mutual
Interference, signal-to-noise ratio is good, convenient for the tune-up of instrument and equipment.
3, it is curved surface that side block, which is 1/4 circle its detection faces of test block part, is adapted with examined workpiece curvature, easy to use,
Accuracy is high.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the embodiment of the present invention；
Fig. 2 is the schematic front view of the embodiment of the present invention；
Fig. 3 is that the position of the reflector of the embodiment of the present invention marks schematic diagram；
Fig. 4 is the left view schematic diagram of the embodiment of the present invention；
Fig. 5 is the elevational schematic view of the embodiment of the present invention；
In figure：1 for upper detection faces, 11 be reflector IV, 2 be side detection faces, 3 be lower detection faces, 5 be simulation component I, 51 be anti-
Beam I, 6 be simulation component II, 61 be reflector II, 7 be simulation component III, 71 be reflector III.
Specific embodiment
The present invention is further explained with reference to the accompanying drawing.
A kind of small diameter pipe welded joint phased array ultrasonic detection reference block, it is characterised in that：Including upper mass, lower part
The center position difference of block and the side block on the right side of the block of upper and lower part, the upper mass and bottom piece width direction is at least
Equipped with a reflector, the reflector is vertical clear opening.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the top surface of the upper mass are upper detection faces
1, the bottom surface of the bottom piece is lower detection faces 2；
The upper mass is equipped with a reflector IV 11, and the bottom piece is from left to right equipped with the staged that height is gradually increased
Simulation component III 7, simulation component II 6 and the simulation component I 5 of distribution, the simulation component III 7, simulation component II 6 and simulation structure
It is respectively corresponded on part I 5 equipped with reflector III 71, reflector II 61 and reflector I 51.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the reflector IV 11, reflector III 71,
The diameter of reflector II 61 and reflector I 51 is 2mm；
The reflector IV 11 is perpendicular to upper detection faces 1, and the reflector IV 11 is away from upper mass left side 20mm；
The reflector III 71, reflector II 61 and reflector I 51 are each perpendicular to lower detection faces 3, and the reflector III 71 is away under
Portion block left side 30mm, the reflector II 61 is away from bottom piece left side 90mm, and the reflector I 51 is away from bottom piece left side
160mm。
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the upper mass with a thickness of 16mm, institute
Stating simulation component III 7, simulation component II 6 and simulating the thickness of component I 5 is respectively 4mm, 8mm and 12mm.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the upper detection faces 1 and lower detection faces 2 are equal
For arc surface and the two radius of curvature it is identical, the radius of curvature of the upper detection faces 1 and lower detection faces 2 be 16mm, 18mm,
Any one in 20mm, 28mm and 36mm, specific test block model is shown in Table one：
1 test block model of table corresponds to table
| Test block model | Upper and lower detection faces radius of curvature R/mm | Tube outer diameter φ/mm to be detected |
| ZK-1 | 16 | 32~36 |
| ZK-2 | 18 | 36~40 |
| ZK-3 | 20 | 40~46 |
| ZK-4 | 23 | 46~56 |
| ZK-5 | 28 | 56~72 |
| ZK-6 | 36 | 72~100 |
The test block uses clear opening as reflector, and for each reflector vertically with tube wall to be detected, test block itself is also mould
A part of quasi- small diameter tube, restores true small diameter tube detection process, detection data deviation further decreases to greatest extent.Tradition
Horizontal through-hole and actual defects reflectance signature difference it is larger, and straight hole reflector can lack of penetration, the root incomplete fusion of approximate simulation etc.
Defect, and secondary wave, tertiary wave can be calibrated, detection accuracy is improved, small diameter pipe welded joint is more advantageous to
Detection and defect are judged.
Each reflector of the invention has the characteristics that self compensation：Within 8mm wall thickness, reflected energy is lower than with depth tradition
The reflected energy of cross-drilled hole, but as the reflected energy difference of increase its reflected energy and the horizontal through-hole of same depth of thickness gradually subtracts
It is small, illustrate to detect its for thin-wall tube when adjusting sensitivity curve as reflector using clear opening that sensitive to be higher than tradition horizontal logical
Hole moves closer to horizontal through-hole detection sensitivity as wall thickness increases its sensitivity, therefore this method is tighter for thin-wall tube requirement
Lattice are some, and this point is very beneficial for the phased array detection of small diameter pipe welded joint.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the side block are to repair for angle gain
The round test block in 1/4 just detected, its lateral surface are arc-shaped side detection faces 2, and the radius of the side detection faces 2 is 50mm.It should
The achievable angle gain amendment of reference block and sensitivity curve production, reduce the spending of purchase test block, easy to carry.Both it mentioned
The high modified precision of angle gain, and reduce the frequency of replacement voussoir, extend probe voussoir service life.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the upper mass, bottom piece and side block
Width be 23mm.Test block width matches with small diameter tube phased array probe specification, improves voussoir and being bonded for test block is tight
Density should not be slided in calibration operation, and detection data fluctuation reduces, and improve the speed and essence of instrument and equipment calibration
Degree.
Above-mentioned small diameter pipe welded joint phased array ultrasonic detection reference block, the test block material are carbon steel or P91, material
Uniformly, the defect used without influence has good acoustical behavior.
In use, the voussoir and probe of corresponding curvature are selected according to pipe fitting specification to be detected first, then according to right in table 1
It should be related to the test block for selecting corresponding model.It places and pops one's head in upper and lower detection faces 1,3, detection faces 2 are surveyed in probe distal end alignment, to institute
The angle within the scope of acoustic beam is needed to carry out angle gain amendment one by one.According to pipe fitting thickness to be detected, the reflection of corresponding height is selected
Body carries out the calibration of sensitivity and the production of sensitivity curve.
Claims (8)
1. a kind of small diameter pipe welded joint phased array ultrasonic detection reference block, it is characterised in that：Including upper mass, bottom piece
With the side block being located on the right side of the block of upper and lower part, the center position of the upper mass and bottom piece width direction is at least set respectively
There is a reflector, the reflector is vertical clear opening.
2. small diameter pipe welded joint phased array ultrasonic detection reference block according to claim 1, it is characterised in that：Institute
The top surface for stating upper mass is upper detection faces（1）, the bottom surface of the bottom piece is lower detection faces（2）；
The upper mass is equipped with a reflector IV（11）, the bottom piece is from left to right equipped with the ladder that is gradually increased of height
The simulation component III of formula distribution（7）, simulation component II（6）With simulation component I（5）, the simulation component III（7）, simulation component
Ⅱ（6）With simulation component I（5）On respectively correspond equipped with reflector III（71）, reflector II（61）With reflector I（51）.
3. small diameter pipe welded joint phased array ultrasonic detection reference block according to claim 2, it is characterised in that：Institute
State reflector IV（11）, reflector III（71）, reflector II（61）With reflector I（51）Diameter be 2mm；
The reflector IV（11）Perpendicular to upper detection faces（1）, the reflector IV（11）Away from upper mass left side 20mm；
The reflector III（71）, reflector II（61）With reflector I（51）It is each perpendicular to lower detection faces（3）, the reflector
Ⅲ（71）Away from bottom piece left side 30mm, the reflector II（61）Away from bottom piece left side 90mm, the reflector I（51）Away from
Bottom piece left side 160mm.
4. small diameter pipe welded joint phased array ultrasonic detection reference block according to claim 2, it is characterised in that：Institute
State upper mass with a thickness of 16mm, the simulation component III（7）, simulation component II（6）With simulation component I（5）Thickness difference
For 4mm, 8mm and 12mm.
5. small diameter pipe welded joint phased array ultrasonic detection reference block according to claim 2, it is characterised in that：Institute
State detection faces（1）With lower detection faces（2）It is arc surface and the two radius of curvature is identical, the upper detection faces（1）With lower inspection
Survey face（2）Radius of curvature be 16mm, 18mm, 20mm, 28mm and 36mm in any one.
6. small diameter pipe welded joint phased array ultrasonic detection reference block according to claim 1, it is characterised in that：Institute
Side block is stated to be arc-shaped side detection faces for 1/4 round test block of angle gain amendment detection, its lateral surface（2）, institute
State side detection faces（2）Radius be 50mm.
7. small diameter pipe welded joint phased array ultrasonic detection reference block according to claim 1, it is characterised in that：Institute
The width for stating upper mass, bottom piece and side block is 23mm.
8. small diameter pipe welded joint phased array ultrasonic detection reference block according to claim 1, it is characterised in that：It should
Test block material is carbon steel or P91.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044933.5A CN108872400B (en) | 2018-09-07 | 2018-09-07 | Reference block for phased array ultrasonic detection of small-diameter pipe welding joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044933.5A CN108872400B (en) | 2018-09-07 | 2018-09-07 | Reference block for phased array ultrasonic detection of small-diameter pipe welding joint |
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|---|---|
| CN108872400A true CN108872400A (en) | 2018-11-23 |
| CN108872400B CN108872400B (en) | 2024-04-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109358116A (en) * | 2018-11-29 | 2019-02-19 | 山东钢铁股份有限公司 | Alloy steel bar ultrasonic examination reference block and its application method |
| CN111537612A (en) * | 2020-05-26 | 2020-08-14 | 山东丰汇工程检测有限公司 | Phased array detection and evaluation method for austenitic stainless steel small-diameter pipe welding joint |
| CN112305084A (en) * | 2020-11-26 | 2021-02-02 | 淮浙煤电有限责任公司凤台发电分公司 | Fillet weld detection process based on ultrasonic technology and test block |
| CN113433225A (en) * | 2021-07-30 | 2021-09-24 | 山东丰汇工程检测有限公司 | Phased array ultrasonic detection test block and detection method for stainless steel small-diameter pipe weld joint |
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| CN111537612B (en) * | 2020-05-26 | 2023-11-21 | 山东丰汇工程检测有限公司 | Phased array detection and assessment method for austenitic stainless steel small-diameter pipe welding joint |
| CN112305084A (en) * | 2020-11-26 | 2021-02-02 | 淮浙煤电有限责任公司凤台发电分公司 | Fillet weld detection process based on ultrasonic technology and test block |
| CN113433225A (en) * | 2021-07-30 | 2021-09-24 | 山东丰汇工程检测有限公司 | Phased array ultrasonic detection test block and detection method for stainless steel small-diameter pipe weld joint |
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| Publication number | Publication date |
|---|---|
| CN108872400B (en) | 2024-04-30 |
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