CN107941917A - Use the method for phased array detection overlay cladding - Google Patents
Use the method for phased array detection overlay cladding Download PDFInfo
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- CN107941917A CN107941917A CN201711089601.4A CN201711089601A CN107941917A CN 107941917 A CN107941917 A CN 107941917A CN 201711089601 A CN201711089601 A CN 201711089601A CN 107941917 A CN107941917 A CN 107941917A
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- probe
- phased array
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- overlay cladding
- voussoir
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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
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0654—Imaging
- G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
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- 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
- G01N2291/2675—Seam, butt welding
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- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention provides a kind of method using phased array detection overlay cladding, probe is placed on the surface of tested overlay cladding vertical direction by the present invention with wedge combinations, phased array cell array direction is detected with overlay cladding in-plane spatial vertical, along weld seam extending direction mobile probe, chip of popping one's head in adjusts focus and collects all directions echo-signal, workpiece cross section shape according to structure, calculate refraction path, echo position, superposition collection defect information is projected to model, true to reflect the defects of overlay cladding shape, size, direction.It is high that the present invention saves detection time, precision, probe need not frequently be replaced, internal flaw reflection is directly perceived, avoid judging by accident caused by probe interacts, it is more targeted relative to a wide range of detection of the conventional Ultrasound extensively without essence, all detected in the sensitivity of near focal point and resolving power than conventional Ultrasound high.
Description
Technical field：
The present invention relates to a kind of method using phased array detection overlay cladding.
Background technology：
At present, the enterprise being detected both at home and abroad using phased-array technique is actually rare, and domestic phased-array technique is main
It is external that this technology is applied to product inservice inspection etc. more applied to the detection of structural member, forging etc..Domestic phased array
Detection technique mainly relies on GB/T 32563-2016《Phased array ultrasonic detecting method》Do not examined for weld seam and built-up welding
Direct specification, but replaced using approximate test.Meanwhile in face of curvature larger part, due to coupling existing for non-dedicated voussoir
Problem, the attenuation degree of each wafer receipt echo is different, refraction path is different, the defects of making to measure projection and its actual bit
Put, size can not form complete mapping relations.At present, do not have in industry to the 8mm of type as shown in Figure 1 and following overlay cladding
Particularly suitable verification scheme.According to case above, it is necessary to dedicated overlay cladding phased array supersonic wave detecting method is formulated, with
Meet the high-precision testing requirements for weld seam and overlay cladding.
The content of the invention：
The present invention provides a kind of method using phased array detection overlay cladding, can effectively detect overlay cladding internal flaw,
Assist production, engineering department's analysis product quality condition.The technical scheme is that：One kind uses phased array detection overlay cladding
Method：
1) phased array system leads to including phased array probe, voussoir, data cable and phased array detection host, phased array probe
To cross while launch, receive more than ten beam ultrasonic waves, gather tested component information, voussoir conduct can grind component, propagate ultrasonic beam,
Enable component of the acoustic beam completely into irregular shape, the Millisecond between data cable transmission probe and detection host is other
Electric signal, phased array detection host are responsible for handling electric signal, by probe and the voussoir data of setting, calculate and draw inspection knot
Fruit and image；
2) after phased array detecting system starts, input probe frequency, number of wafers, chip interval and voussoir length, width and height size
And angle of inclination, scanned into detection, draw part figure to be checked according to reference block size, regulating system gain parameter makes screen
The clutter that observation is influenced in the echo of upper display disappears, and display of the artificial defect in screen can be identified clearly, draws identical
Equivalent artificial defect echo height under different depth, connects the peak of these echoes with smoothed curve on the screen, this
Curve, which is used as, sentences scrap wire；
3) making to grind probe and wedge combinations, it meets tested part curvature, will pop one's head in 5L16 and voussoir SB10-N55S's
Combination is placed on tested parts surface, mobile probe to ultrasonic wave primary event and the position of the detectable built-up welding of secondary reflection
Put；
4) measuring probe and detection position distance：Wafer angle amendment, gain-boosted op amp are adjusted using reference block, pass through tune
The gain values i.e. dB values of each chip are saved, make the angular readings and actual angle of whole artificial defects of identification in test range
Error is no more than 1 °, and the artificial defect echo height error of same depth is no more than 5%, set the depth of focus of the type of focusing as
Near weld penetration, setting filtering wave amplitude, makes since grass-like ripple caused by metal inside coarse grain disappears in screen, and interface
Influence to be filtered caused by ripple, adjust sound path distance, i.e. equipment range, ensure that tested scope can be completely covered；
5) enter phased array devices detection interface, artificial defect test block is detected according to step 3), it is ensured that in test block
The artificial defect of corresponding equivalent can clearly, be separately displayed in imaging region；
6) overlay cladding and record check result are checked：Translate and pop one's head in along straight line, move single two dimensional image edge
Direction is superimposed, and generates 3D rendering, is used for rechecking and tracing inspection situation；
7) post-processing：It can be asked in formal testing stage because echo is overlapping, tested modular construction, the depth of focus are set etc.
Topic produces pseudo- display, and puppet is rationally excluded by reducing local gain and alteration detection direction, the method for reinspection unstable region
It has been shown that, draws final detection result.
Probe is placed on the surface of tested overlay cladding vertical direction by the present invention with wedge combinations, phased array cell array side
It is detected to overlay cladding in-plane spatial vertical, along weld seam extending direction mobile probe, probe chip adjusts focus and receives
Collect all directions echo-signal, according to the workpiece cross section shape such as Fig. 1 structures, calculate refraction path, echo position, superposition collection
Defect information is projected to model, true to reflect the defects of overlay cladding shape, size, direction.This method is examined based on phased array
Technology, phased-array technique are the emerging technologies to be grown up based on ultrasound examination, and the basis of detecting system is that host adds probe,
Its function is to show ultrasound examination result for observation, superposition integral computing of the function based on sound field, in heap on the screen
, it is necessary to change routine techniques condition in layer detection, sound beam direction is different from conventional phased array detection mode with focus, is a kind of
New detection mode.
The effect of invention
Phased array detection method is detected compared to conventional Ultrasound, because it has the characteristics that Multi probe detects at the same time, Ke Yifa
The ultrasonic wave of tens angles is penetrated, the conventional transducer for being equivalent to tens different angles works at the same time, so phased array detects
It is not necessary to carry out the zigzag scan Z of conventional Ultrasound detection, to a direction translation probe, while built-in algorithm can
With control it is multiple probe work at the same time caused by compound sound field, avoid caused by probe interacts judge by accident；Phased array is adopted
Focusing function, can accurately be detected in a certain depth specified, i.e. near focal point, it is wide relative to conventional Ultrasound and
Not smart a wide range of detection is more targeted, is all detected in the sensitivity of near focal point and resolving power than conventional Ultrasound high；Phase
Controlling battle array can be modeled by drawing, and a three-dimensional graph be determined, by the size of inside workpiece structure and defect, shape, side
Intuitively it is reflected in the change by color on 3-D view, non-professional personnel is found out, conventional Ultrasound can only leads to
Waveform change is crossed to differentiate defect, exclude pseudo- display, it is necessary to prolonged working experience；Phased array can be by adjusting probe hair
The angle of sound wave is penetrated, detects very complicated workpiece, conventional Ultrasound detection is deposited because head angle is fixed in actually detected
In blind area, missing inspection is caused.
Detection for weld seam and overlay cladding, phased array need not replace probe and scanning instrument, be gathered by optimal control
Burnt region, sound beam direction, excitation voltage etc. can be achieved with whole test range and the multi-angle in quality control region, multi-party
To the detection of, more accuracy classes, in particular surroundings, such as：Irradiation, hypoxemia etc., can reduce operating time, reduce to identifier
The influence of member's health.
Conventional ultrasonic detection method is disturbed for more general than relatively thin overlay cladding detection be subject to boundary wave, and interface
Limitation of the ripple because of detection technique in itself can not exclude, and separately because effective detection zone is larger, be actually needed the position accounting of detection
Not high, the resolving power of inspection result and sensitivity have been similarly subjected to influence.
Conventional ultrasonic detection method when carrying out weld seam detection, generally require one normal probe of selection, two to three
Different types of angle probe carries out scanning along zigzag, the testing accuracy grade each popped one's head in need individually verification, heavy workload,
Probe motion track does not know, examines path can not need to adjust probe angle repeatedly when full backup, defect location when rechecking
Degree, wastes a large amount of detection times.
Probe-voussoir of this detection method based on general detection host and customization, by parameter regulation, realizes once
Property detect the Φ 0.5mm equivalent defects that diverse location in thin overlay cladding buries under the interference of built-up welding combination bed boundary ripple, and examine
Survey data to can record, repeat, this technology should belong to advanced level in manufacturing.
Brief description of the drawings：
Fig. 1 is overlay cladding structure diagram
Fig. 2 is phased array probe and the constitutional diagram for grinding voussoir
Fig. 3 is the focus detection schematic diagram of conventional phased array probe
Embodiment：
A kind of method using phased array detection overlay cladding：1) phased array system includes phased array probe, voussoir, data electricity
Cable and phased array detection host, for phased array probe by launching at the same time, receiving more than ten beam ultrasonic waves, collection is detected component information,
Voussoir conduct can grind component, propagate ultrasonic beam, enable component of the acoustic beam completely into irregular shape, and data cable passes
Pass probe and detect the other electric signal of Millisecond between host, phased array detection host is responsible for handling electric signal, passes through setting
Probe and voussoir data, calculate and draw inspection result and image；
2) after phased array detecting system starts, phased array probe 5L16 as shown in Figure 2 and voussoir SB10-N55S numbers are inputted
According to, including frequency probe, number of wafers, chip interval and voussoir length, width and height size and angle of inclination, scanned into detection, according to
Reference block size draws part figure to be checked, and the clutter of observation is influenced in the echo that regulating system gain parameter makes to show on screen
Disappear, display of the artificial defect in screen can be identified clearly.Draw identical equivalent artificial defect echo under different depth
Highly, the peak of these echoes is connected with smoothed curve on the screen, this curve, which is used as, sentences scrap wire；
3) as shown in Fig. 2, making to grind probe and wedge combinations, it meets tested part curvature, by probe 5L16 and voussoir
The combination of SB10-N55S is placed on tested component mother metal surface, mobile probe to ultrasonic wave primary event and secondary reflection
Detect the position of built-up welding；
4) measuring probe and detection position distance：Wafer angle amendment, gain-boosted op amp are adjusted using reference block, pass through tune
The gain values i.e. dB values of each chip are saved, make the angular readings and actual angle of whole artificial defects of identification in test range
Error is no more than 1 °, and the artificial defect echo height error of same depth is no more than 5%, sets the type of focusing as shown in Figure 3
The depth of focus is near weld penetration, setting filtering wave amplitude, makes in screen due to grass-like ripple caused by metal inside coarse grain
Disappear, and influence to be filtered caused by boundary wave, adjust sound path distance, i.e. equipment range, ensure that tested scope can be completely covered；
5) enter phased array devices detection interface, artificial defect test block is detected according to step 3), it is ensured that in test block
The artificial defect of corresponding equivalent can clearly, be separately displayed in imaging region；
6) overlay cladding and record check result are checked：Translate and pop one's head in along straight line, move single two dimensional image edge
Direction is superimposed, and generates 3D rendering, and storage inspection result uses for rechecking and tracing inspection situation；
7) post-processing：It can be asked in formal testing stage because echo is overlapping, tested modular construction, the depth of focus are set etc.
Topic produces pseudo- display, and puppet is rationally excluded by reducing local gain and alteration detection direction, the method for reinspection unstable region
It has been shown that, draws final detection result.
8) the problem of being directed in other practical applications, also need to establish model according to drawing and material object, and according to above-mentioned
Method measures.
Claims (1)
1. a kind of method using phased array detection overlay cladding, it is characterized in that：Using following processing step：
1) phased array system includes phased array probe, voussoir, data cable and phased array detection host, and phased array probe passes through same
When transmitting, receive more than ten beam ultrasonic waves, gather tested component information, voussoir conduct can grind component, propagate ultrasonic beam, make sound
Beam can be completely into the component of irregular shape, the other telecommunications of Millisecond between data cable transmission probe and detection host
Number, phased array detection host is responsible for handling electric signal, by the probe of setting and voussoir data, calculate and draw inspection result and
Image；
2) after phased array detecting system starts, input probe frequency, number of wafers, chip interval and voussoir length, width and height size and incline
Rake angle, is scanned into detection, draws part figure to be checked according to reference block size, regulating system gain parameter makes to show on screen
The clutter that observation is influenced in the echo shown disappears, and display of the artificial defect in screen can be identified clearly, draw identical equivalent
Artificial defect echo height under different depth, connects the peak of these echoes, this curve with smoothed curve on the screen
As sentencing scrap wire；
3) making to grind probe and wedge combinations, it meets tested part curvature, by the combination of 5L16 and voussoir SB10-N55S of popping one's head in
It is placed on tested parts surface, mobile probe to ultrasonic wave primary event and the position of the detectable built-up welding of secondary reflection；
4) measuring probe and detection position distance：Wafer angle amendment, gain-boosted op amp are adjusted using reference block, it is every by adjusting
The gain values of a chip, that is, dB values, make the angular readings of whole artificial defects of identification and actual angle error in test range
No more than 1 °, the artificial defect echo height error of same depth is no more than 5%, sets the depth of focus of the type of focusing as weld seam
Near depth, setting filtering wave amplitude, makes since grass-like ripple caused by metal inside coarse grain disappears in screen, and boundary wave is made
Into influence filtered, adjust sound path distance, i.e. equipment range, ensures that being detected scope can be completely covered；
5) enter phased array devices detection interface, artificial defect test block is detected according to step 3), it is ensured that corresponding in test block
The artificial defect of equivalent can clearly, be separately displayed in imaging region；
6) overlay cladding and record check result are checked：Translate and pop one's head in along straight line, make single two dimensional image along moving direction
Superposition, generates 3D rendering, is used for rechecking and tracing inspection situation；
7) post-processing：It can be produced in formal testing stage the problems such as modular construction overlapping because of echo, tested, depth of focus setting
Raw pseudo- display, pseudo- display is rationally excluded by reducing local gain and alteration detection direction, the method for reinspection unstable region,
Draw final detection result.
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| CN201711089601.4A CN107941917A (en) | 2017-11-08 | 2017-11-08 | Use the method for phased array detection overlay cladding |
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| CN201711089601.4A CN107941917A (en) | 2017-11-08 | 2017-11-08 | Use the method for phased array detection overlay cladding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702790A (en) * | 2019-11-11 | 2020-01-17 | 成都主导科技有限责任公司 | Ultrasonic probe for remote acoustic distance detection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967654A (en) * | 2012-10-22 | 2013-03-13 | 上海锐迈重工有限公司 | Ultrasonic flaw detection method of surfacing steel pipe from base material side |
| CN105181798A (en) * | 2015-08-05 | 2015-12-23 | 中冶建筑研究总院有限公司 | Construction steel structure weld ultrasonic phased array detection technology |
| CN105353039A (en) * | 2015-11-23 | 2016-02-24 | 国家电网公司 | Phased array longitudinal wave testing method of butt weld joints |
| CN106680374A (en) * | 2016-12-28 | 2017-05-17 | 中国核工业二三建设有限公司 | Phased array ultrasonic imaging detection method for large-diameter and thick-wall alloy steel weld with stainless steel surfacing layer |
-
2017
- 2017-11-08 CN CN201711089601.4A patent/CN107941917A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967654A (en) * | 2012-10-22 | 2013-03-13 | 上海锐迈重工有限公司 | Ultrasonic flaw detection method of surfacing steel pipe from base material side |
| CN105181798A (en) * | 2015-08-05 | 2015-12-23 | 中冶建筑研究总院有限公司 | Construction steel structure weld ultrasonic phased array detection technology |
| CN105353039A (en) * | 2015-11-23 | 2016-02-24 | 国家电网公司 | Phased array longitudinal wave testing method of butt weld joints |
| CN106680374A (en) * | 2016-12-28 | 2017-05-17 | 中国核工业二三建设有限公司 | Phased array ultrasonic imaging detection method for large-diameter and thick-wall alloy steel weld with stainless steel surfacing layer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702790A (en) * | 2019-11-11 | 2020-01-17 | 成都主导科技有限责任公司 | Ultrasonic probe for remote acoustic distance detection |
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Application publication date: 20180420 |