CN107894458A - The phased array ultrasonic detecting method of Welded housing weld seam - Google Patents
The phased array ultrasonic detecting method of Welded housing weld seam Download PDFInfo
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- CN107894458A CN107894458A CN201711087825.1A CN201711087825A CN107894458A CN 107894458 A CN107894458 A CN 107894458A CN 201711087825 A CN201711087825 A CN 201711087825A CN 107894458 A CN107894458 A CN 107894458A
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- detecting method
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 32
- 239000011324 bead Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 35
- 238000004458 analytical method Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 description 37
- 230000006870 function Effects 0.000 description 7
- 238000007689 inspection Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000002224 dissection Methods 0.000 description 3
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- 238000012545 processing Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
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- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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Classifications
-
- 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
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
Abstract
The phased array ultrasonic detecting method of Welded housing weld seam, it is related to the welding technology field of Welded housing, the particularly quality detection technology to weld seam.Using phased array probe perpendicular to weld seam, straight line scanning is carried out along straight tube bead direction.The present invention propose a kind of tested welded tube of basis maximum gauge select corresponding phased array probe each parameter preferred detection scheme, reach easily and fast, accurately, also facilitate the purpose of post analysis.
Description
Technical field
The present invention relates to the welding technology field of Welded housing, the particularly quality detection technology to weld seam.
Background technology
In industrialized production, after material is formed into the tubing that design needs by longitudinal joint, circumferential weld or spiral seam welding, need
Ultrasonic Nondestructive is carried out to the weld seam of tubing in time, enter subsequent processing for reaching the ability to conform to quality requirements,
And it must be done over again if not meeting quality requirement on inspection.
The method of actual inspection weld seam is at present：It is positioned over working on the workbench of its controllable motion, detection work is then
Hand-held ordinary ultrasonic instrument, detection work intently observe dynamic waveform information by the display screen in Ultrasound Instrument, such as find it
On reflected it is improper（Quality requirement is not met）Information when, then marking at this of tubing.Due to ordinary ultrasonic
Detection time is grown, and the couplant that human factor influences greatly, to use is wasted time and energy when removing.Such as 1 18 meters of helical welded tube, weldering
Length is stitched up to 40 meters, 2 people of ordinary ultrasonic are detected simultaneously, and everyone needs 90 minutes.Because ordinary ultrasonic is that zigzag is swept
Look into, missed detection risk is very big caused by human factor, and waveform can not store, it is impossible to which carry out the later stage analyzes again.In addition, because
Ordinary ultrasonic instrument or X-Ray detections are influenceed by defect in position while welding, and some defects can not be detected and are missed.
Phased array ultrasonic detection（Abbreviation PAUT）, it is that a kind of focusing rule according to setting row probe unit poised for battle exists
Apply different time delay (or voltage) when transmitting or reception ultrasonic wave, pass through the shifting that Wave beam forming realizes detection acoustic beam
The ultrasound detection imaging technique of the function such as dynamic, deflection and focusing.
Phased array supersonic main frame probe is made up of 64 piezoelectric chips.Each piezoelectric chip forms a transmitting/reception battle array
Member, then change each transmitting or reception ultrasonic wave by pulse daley under the excitation of radiating circuit and reach certain in object
The phase relation of point forms phase difference, to reach the deflection and focusing to wave beam, so as to realize detection.
But because the thickness of Welded housing in real production process is different, therefore, using common phased array
Supersonic detection method can not then accomplish the end in view, and equally will also result in missing inspection or cross and examine.
The content of the invention
The present invention seeks to propose one kind easily and fast, accurately, also facilitate the Welded housing weld seam of post analysis
Phased array ultrasonic detecting method.
The present invention, perpendicular to weld seam, straight line scanning is carried out along straight tube bead direction using phased array probe；The phased array
Pop one's head in meet JB/T 11731 phased array probe.
Each parameter of phased array probe see the table below：
Through studying, proving, contrasting repeatedly, the present invention propose a kind of tested welded tube of basis maximum gauge select it is corresponding
The preferred detection scheme of each parameter of phased array probe, reach easily and fast, accurately, also facilitate the purpose of post analysis.
In practical application, workpiece can be detected first with the above phased array ultrasonic methods of the present invention.Such as 1
18 meters of helical welded tubes, fusion length can be completed for 30 minutes up to 40 meters using 1 people of above phased array ultrasonic methods of the present invention.
Because phased array supersonic is sector scan, human factor influences small, safety and environmental protection, and efficiency high, accuracy rate is high, and can store.This
Sample was not only time saving but also accurate, it is ensured that Product jointing quality.Then, to finding the defects of, is again with ordinary ultrasonic and the method for manual dissection
Rechecked.
The advantage of the present invention：
1st, it is a kind of green detection method to human body and environmentally friendly using water as couplant without ionising radiation.
2nd, it is more sensitive to incomplete fusion and crackle homalographic defect, detected relative to ordinary ultrasonic, ray detection, defect inspection
Extracting rate is higher.
3rd, detection efficiency up to ordinary ultrasonic detection, 3~5 times of ray detection；Can also cross-operation, to environment, time
Do not require specifically；Meanwhile all detection record digitlization storages, it is easy to trace and preserves.
Further, the present invention synchronizes straight line scanning, two phased array probe difference using two phased array probes
The same face of welded tube welding seam is arranged in, and in the both sides of straight tube weld seam.From the mechanism of similar one dimensional line scanning, so need to only sweep
The data of weld seam both sides scanning can once be obtained simultaneously by looking into.
Through research, relative to the different weld seams of different Al-alloy casings, the speed of straight line scanning is different：
When the weld seam is longitudinal joint, the speed of the straight line scanning is to be not more than 100mm/s along conduit axis direction.Improve inspection
The operating efficiency of survey, save the time of detection.
When the weld seam is spiral weld, the speed of the straight line scanning is along 1~2m/min of straight tube axis direction.This
While sample both ensure that operating efficiency, a stable data can be obtained, are easy to analysis to judge.
And when the weld seam is circumferential weld, the speed of the straight line scanning is along 1~2m/min of steel pipe seam direction.Both protected
While having demonstrate,proved operating efficiency, a stable data can be obtained, are easy to analysis to judge.
Couplant of 10 DEG C~35 DEG C water of pure, bubble-free and impurity for phased array probe is used during scanning.With water coupling
Close, environmentally safe, water is more accurate to the more preferable of sonic transmissions, the data of acquirement under 10 DEG C~35 DEG C water temperature conditions.
Embodiment
First, processing early stage is detected：
1st, place：
Detecting environment should not be carried out in the place for influenceing ultrasonic instrument and auxiliary electric equipment normal work, such as strong magnetic, shake
It is dynamic, high frequency, dust are big, be corrosive gas and the big place of noise is carried out.
2nd, temperature and humidity：
The temperature and humidity of operating point should be controlled in the range of detecting instrument, auxiliary electric equipment and material allow.
3rd, for the movement and coupling of probe, free from dust, impurity, pollutant process, surface are carried out to examined workpiece surface
Roughness≤Ra6.3.
Workpiece is placed in a controllable constant speed, along the console of straight tube axial movement.The movement velocity that controls of this example is
80mm/s。
2nd, detection main frame：
Use Olympus（OLYMPUS）OmniScan MX2 phased array supersonic instrument；The data acquisition of instrument and scanning equipment move
It is dynamic synchronous, possess storage and differentiate function.
3rd, couplant：
Use pure, bubble-free and 10 DEG C~35 DEG C water of impurity.
4th, scanning step：
According to thickness of workpiece, weld seam groove shape and size, carried out from corresponding standard calibration test block and contrast verification test block
Verification.
1st, sensitivity adjustment：The wave amplitude of the 2 horizontal through holes of φ that depth is 10mm in calibration block is calibrated to 80%, completed
Sensitivity calibration.The process selects above couplant.
2nd, TCG curve plottings：TCG on phased array supersonic instrument is selected to make module, the ripple in the holes of φ 2 at depth 10mm
Width regulation, by the line regulation of green to two red dotted line frames, is clicked on and determined, subsequent point is added, at depth 20mm to 80%
The horizontal through hole wave amplitudes of φ 2 be transferred to 80%, by line regulation of green in it to two red dotted line frames, first point of similar addition,
Click on and determine, TCG curve plottings finish.Horizontal through hole highest depth is greater than 2.2 times of thickness of slab.
3rd, probe selection：
Phased array probe meets JB/T 11731.Phased array probe forms array by multiple chips.
The phased array probe of selection meets JB/T 11731, and phased array probe forms array by multiple chips；Phased array is visited
Each parameter of head see the table below：
In upper table, chip spacing refers to：The distance between same side or center of two adjacent chips.
Yawing moment aperture size refers to the size of one group of chip used in each probe.
Welded with longitudinal joint, and tested and analyzed exemplified by maximum gauge 6mm≤T ＜ 15mm of straight tube below.
Straight line scanning is synchronized from two phased array probes, two phased array probes are arranged in straight tube weld seam
The same face, and in the both sides of weld seam.
4th, compensate：Measured according to the requirement of product quality security system plus 6dB compensation, click on UT on phased array supersonic instrument
Button is configured, and selection is advanced, and click refers to dB, clicks on gain+6, the setting of complete pair gain.
Time gain amendment is to carry out gain-boosted op amp to the echo of identical size reflector at different sound paths, makes up to phase
Same amplitude.
5th, scanning face prepares：
It should be marked before scanning on workpiece scanning face, mark content comprises at least scanning starting point and scanning direction.
6th, operating procedure：
Straight line scanning is synchronized using two phased array probes, two phased array probes are arranged in the same of steel pipe seam
Face, and in the both sides of steel pipe seam.Two phased array probe cell array directions are vertical or into stabilization with probe moving direction
A certain angle.
Front distance leaves Weld pipe mill certain distance, is translated along weld line direction, to obtain in acoustic beam coverage
The information of weld seam.
Continuously it is provided with above-mentioned couplant during scanning by water pump.
Scanning stops scanning, and press saving button to after exceeding starting point.
7th, measure：
By in the storage card storage in instrument to computer, opened using OmniPC-4.4R3 softwares, shown with reference to the Type B in instrument
Show, c-type is shown, S types are shown and A sweep is shown, the position of defect, amplitude, length are measured.
OmniPC-4.4R3 software manuals：
Software should at least have A, S, the function that B, C type are shown, and with scan image to defect location, addressing and point
Analyse function.
It can store, recall A, S, B, C image, and the detection data of storage can be copied in external memory space.
Software should have focusing rule meter to beat function A, CG calibration function, and TCG (or DAC) calibration function.
Instrument should be able to store and differentiate the information of relative position between each A sweep signal, such as encoder position.
Key parameter She Shen is checked when should be able to be to detection in off-line analysis software.
8th, the determination of defect length：
If defect highest wave amplitude on the basis of this amplitude, finds this defect different angle not less than all over the screen 100% and more than 20%
A sweep echo amplitude reduces length of the 6dB maximum length as the defect.If defect highest wave amplitude is less than 20% and is higher than 10%,
Then find this defect different angle A sweep echo amplitude and be reduced to 10%, to be grown with the measurement defect instruction of 10% absolute sensitivity method
Degree.
If defect highest amplitude exceedes all over the screen 100%, find this defect different angle A sweep echo amplitude and be reduced to completely
Length of the maximum length as this defect when shielding 50%.
Two defects adjacent along defect length direction, its length direction is smaller than wherein less defect length and two lack
Be trapped in and be smaller than 5mm with the perpendicular direction of defect length, should be used as strip defect processing, using two defect length sums as
Its indicating length（Spacing is included in）.If two defects have overlapping in length direction projection, thrown in the longitudinal direction with two defects
The left and right end points distance of shadow is as its indicating length.
9th, defect identifies：Detected pieces defective locations are identified；
Confirmation is measured using tape measure to weld defect position according to the record of evaluation, and mark is carried out in product surface, is believed
Breath includes defect length, depth and grade.
10th, judge：The requirement of detected pieces weldquality meets customer specification.
Welding point do not allow to exist crackle, incomplete fusion and it is lack of penetration the defects of；
The defects of wave amplitude is below 10% is chosen as I grade；
Quality of weld joint classification is judged according to the regulation of table 2 below, is such as controlled according to I grade of standard：
11st, comparing result：
Workpiece is carried out using phased array supersonic to detect common discovery defect 41, wherein 15 are I grade, 26 are III grade.
15 I grade of defects：
And inspected 5 by random samples using ordinary ultrasonic, wherein 3 are I grade of defect, 2 do not find.
1 defect has been inspected by random samples using manual dissection.
26 III grade of defects：
And inspected 16 by random samples using ordinary ultrasonic, wherein 11 are III grade, 5 do not find.
8 have been inspected by random samples using manual dissection, are found that defect.
Phased array ultrasonic detection speed is faster than other detection means, such as 18 meters of workpiece, and phased array ultrasonic detection needs 30 points
Clock, ordinary ultrasonic detection then need 90 minutes.
Meanwhile through research it has also been found that phased array ultrasonic detection is influenceed by artifact small, and ordinary ultrasonic detection and X ray
Detection is had a great influence by artificial defect judgement level.
By detecting proving and comparisom, the method for phased array ultrasonic detection is not only tentatively grasped, while also feel dearly
Compared with traditional X-ray detection and ordinary ultrasonic detect, either accuracy rate, or detection speed etc. suffer from it is larger
Advantage, it should say and apply it among actual detection, will General Promotion Product jointing quality.
Claims (6)
1. the phased array ultrasonic detecting method of Welded housing weld seam, it is characterised in that：Using phased array probe perpendicular to
Weld seam, straight line scanning is carried out along straight tube bead direction；The phased array probe meets JB/T 11731, and phased array probe is by multiple
Chip forms array.
2. the phased array ultrasonic detecting method of Welded housing weld seam according to claim 1, it is characterised in that：Using
Two phased array probes synchronize straight line scanning, and two phased array probes are arranged in the same face of straight tube weld seam, and
The both sides of straight tube weld seam.
3. the phased array ultrasonic detecting method of Welded housing weld seam according to claim 1 or claim 2, it is characterised in that：
When the weld seam is longitudinal joint, the speed of the straight line scanning is not more than 100mm/s for Welded housing axis direction.
4. the phased array ultrasonic detecting method of Welded housing weld seam according to claim 1 or claim 2, it is characterised in that：
When the weld seam is spiral weld, the speed of the straight line scanning is along 1~2m/min of spiral welded pipe axis direction.
5. the phased array ultrasonic detecting method of Welded housing weld seam according to claim 1 or claim 2, it is characterised in that：
When the weld seam is circumferential weld, the speed of the straight line scanning is along 1~2m/min of shell bead direction.
6. the phased array ultrasonic detecting method of Welded housing weld seam according to claim 1 or claim 2, it is characterised in that：
Couplant of 10 DEG C~35 DEG C water of pure, bubble-free and impurity for phased array probe is used during scanning.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711087825.1A CN107894458A (en) | 2017-11-08 | 2017-11-08 | The phased array ultrasonic detecting method of Welded housing weld seam |
| PCT/CN2018/078110 WO2019091029A1 (en) | 2017-11-08 | 2018-03-06 | Phased array ultrasonic testing method for weld seam of housing welded by using aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711087825.1A CN107894458A (en) | 2017-11-08 | 2017-11-08 | The phased array ultrasonic detecting method of Welded housing weld seam |
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| CN107894458A true CN107894458A (en) | 2018-04-10 |
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| CN201711087825.1A Pending CN107894458A (en) | 2017-11-08 | 2017-11-08 | The phased array ultrasonic detecting method of Welded housing weld seam |
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| WO (1) | WO2019091029A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380955A (en) * | 2018-12-31 | 2020-07-07 | 中国科学院沈阳自动化研究所 | Method for detecting defects of additive manufacturing part based on ultrasonic phased array |
| CN111505118A (en) * | 2020-04-27 | 2020-08-07 | 润电能源科学技术有限公司 | Method, device, equipment and storage medium for detecting welding seam |
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|---|---|---|---|---|
| CN104359976A (en) * | 2014-08-25 | 2015-02-18 | 中国海洋石油总公司 | Method for accurately quantifying flaw height of girth welding seam in submarine pipeline |
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| CN103115963A (en) * | 2013-01-29 | 2013-05-22 | 上海中油天宝巴圣钢管有限公司 | Method for detecting welding seam of resistance weld pipe through creeping wave and creeping wave probe for method |
| CN104297340B (en) * | 2014-09-24 | 2016-04-27 | 中国能源建设集团安徽电力建设第一工程有限公司 | A kind of small diameter tube lossless detection method based on phased-array ultrasonic defectoscope |
| JP6160587B2 (en) * | 2014-10-07 | 2017-07-12 | Ｊｆｅスチール株式会社 | Manufacturing method of high-strength ERW steel pipe with excellent creep characteristics in the middle temperature range of ERW welds |
| CN104849349B (en) * | 2015-05-18 | 2017-11-03 | 田国良 | The method that thin-walled small diameter tube weld seam is detected using phased array supersonic combination technique |
| CN105353035B (en) * | 2015-11-12 | 2018-07-10 | 青岛发现检验技术咨询有限公司 | It is a kind of using phased array to the detection method of TKY pipe nodes |
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2017
- 2017-11-08 CN CN201711087825.1A patent/CN107894458A/en active Pending
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- 2018-03-06 WO PCT/CN2018/078110 patent/WO2019091029A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359976A (en) * | 2014-08-25 | 2015-02-18 | 中国海洋石油总公司 | Method for accurately quantifying flaw height of girth welding seam in submarine pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 张丽娜 等: "2219 铝合金搅拌摩擦焊焊缝 相控阵超声波无损检测" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380955A (en) * | 2018-12-31 | 2020-07-07 | 中国科学院沈阳自动化研究所 | Method for detecting defects of additive manufacturing part based on ultrasonic phased array |
| CN111505118A (en) * | 2020-04-27 | 2020-08-07 | 润电能源科学技术有限公司 | Method, device, equipment and storage medium for detecting welding seam |
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| WO2019091029A1 (en) | 2019-05-16 |
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