CN104634866B - The device and method of Metal Crack trend and depth is assessed using ultrasonic electromagnetic principle - Google Patents
The device and method of Metal Crack trend and depth is assessed using ultrasonic electromagnetic principle Download PDFInfo
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Abstract
The invention discloses the device and method that Metal Crack trend and depth are assessed using ultrasonic electromagnetic principle, using ultrasound and vortex combined detection method, design makes coupling probe scanning and searching mechanism using an EDDY CURRENT probe and two ultrasound detection angle probes, first with eddy current method positioning metal material surface crackle aperture position and assessment crack depth equivalent, crack depth direction trend and crack depth equivalent then are assessed with ultrasonic method, the metal material crack orientation that can not be realized so far and crack depth equivalent rapid evaluation problem is efficiently solved.
Description
The present invention relates to a kind of lossless detection method, more particularly to Metal Crack trend is assessed using ultrasonic electromagnetic principle
With the device and method of depth.
Background technology
The depth and trend of check and evaluation metal material workpiece crack, be to ensure that the in-service safe operation of metal material workpiece,
Avoid the primary method of accident, for example, railway track is in use, surface fine cracks can be produced, fine cracks by
To traveling train extruding in the case of can to rail in-house development expand, when crack growth to a certain degree when, just influence whether
The safety of rail, easily occurs rail fracture accident, and wherein Incline Crack is especially dangerous, and different crack orientations and depth are right
The influence degree of rail safety is different.Generally using the lossless detection method detection metal material workpiece crack such as ultrasound or vortex,
Wherein, eddy current detection method is applied to the quick detection of metal material surface and near surface crack defect, but it can not assess and split
The trend of line；Supersonic detection method is applied to the detection of metal material internal flaw mostly.So far, without a kind of effective metal
The trend of material crack and the quick detection appraisal procedure of depth.
The content of the invention
It is an object of the invention to the deficiency for overcoming prior art, there is provided assess Metal Crack using ultrasonic electromagnetic principle to walk
To the device and method with depth, using ultrasound and vortex combined detection method, the ultrasonic vortex coupling probe scanning and searching mechanism of design,
Realize rapid evaluation metal material crack orientation and crack depth equivalent.
The technical solution adopted for the present invention to solve the technical problems is：Metal Crack is assessed using ultrasonic electromagnetic principle to walk
To the device with depth, coupling probe scanning machine is made using an EDDY CURRENT probe and two ultrasound detection angle probes
Structure, the incidence angle of described two ultrasound detection angle probes, frequency, material, shape are identical, and incidence angle is fixed value, two ultrasounds
Detection angle probe specular is fixed, so that the ultrasonic wave specular of two ultrasound detection angle probes transmitting, intersecting；The whirlpool
Stream detection probe, is placed in the middle of two ultrasound detection angle probes.
The method that Metal Crack trend and depth are assessed using ultrasonic electromagnetic principle, using ultrasound and vortex combine detection side
Method, first with eddy current method positioning metal material surface crackle aperture position and assessment crack depth equivalent, then uses ultrasonic method
Crack depth direction trend is assessed, methods described comprises the following steps,
A. using the reference block for the standard intraocular's crackle for being machined with different depth and differing tilt angles to coupling probe
EDDY CURRENT probe and ultrasound detection angle probe in scanning and searching mechanism carry out crack depth direction trend and crack depth equivalent
Demarcation, the crackle vortex induction signal amplitude phase and crack depth for obtaining EDDY CURRENT probe demarcates relation function, obtains
The ultrasonic wave of two ultrasound detection angle probe transmittings runs into the echo-signal time value of crackle and crack inclination angle scale determines relation
Function；The material of the reference block, structure are identical with tested metal material；
B. coupling probe scanning and searching mechanism is placed in tested metal material detection faces；Two ultrasound detection angle probe connections are super
Sound detection instrument, EDDY CURRENT probe connection eddy current testing instrument；
C. coupling probe scanning and searching mechanism, the metal material in EDDY CURRENT probe investigative range are moved with constant speed
When there is crackle on material surface, EDDY CURRENT probe cracks vortex induction signal, and crackle vortex induction signal is sent to vortex
Detector；When EDDY CURRENT probe is reached exactly to directly over crackle opening, crackle vortex induction signal amplitude reaches maximum
Value, demarcates according to the crackle vortex induction signal amplitude, phase and crack depth of the EDDY CURRENT probe obtained in step a and closes
It is that function calculates crack depth equivalent relative to standard intraocular's crackle；
D. when crackle vortex induction signal amplitude reaches maximum, eddy current testing instrument sends trigger signal to super simultaneously
Sound detection instrument and coupling probe scanning and searching mechanism, coupling probe scanning and searching mechanism stop movement, ultrasound while receiving trigger signal
Two ultrasound detection angle probe transmitting ultrasonic waves of excitation while detector receives trigger signal；When two ultrasound detections are tiltedly visited
During the sonication times axle waveform symmetry that hair is penetrated, i.e., when the echo-signal time value that two ultrasonic waves run into crackle is identical, then
Illustrate the crackle vertically downward；When the sonication times axle waveform of two ultrasound detection angle probe transmittings is asymmetric, i.e., two
When the echo-signal time value that ultrasonic wave runs into crackle is differed, then it is Incline Crack to illustrate the crackle, is obtained according in step a
The ultrasonic wave of two ultrasound detection angle probes transmitting run into the echo-signal time value of crackle and crack inclination angle scale is closed surely
It is that function can calculate the angle of inclination of Incline Crack, assesses Incline Crack depth direction trend.
The device of Metal Crack trend and depth is assessed using ultrasonic electromagnetic principle, further, is vortexed and examined using array
Probing head substitutes the EDDY CURRENT probe in the coupling probe scanning and searching mechanism.Metal Crack is assessed using ultrasonic electromagnetic principle
The method of trend and depth, further, after step a, step b is performed, in step c, when array eddy current probe is firm
When reaching directly over crackle opening well, crackle vortex induction signal amplitude reaches maximum, according to the crackle whirlpool obtained in step a
Influenza induction signal amplitude, phase and crack depth demarcation relation function calculate the crack depth relative to standard intraocular's crackle
Equivalent；In step d, further, the surface for judging tested metal material crackle using array eddy current probe is moved towards, when
When the surface trend and the scanning direction out of plumb of coupling probe scanning and searching mechanism of tested metal material crackle, with array EDDY CURRENT
The maximum array element of crackle vortex induction signal is the center of circle in probe, and rotation combination probe scanning mechanism makes coupling probe scanning machine
Structure scanning direction is vertical with the surface trend of tested metal material crackle, to obtain the maximum ultrasound of two ultrasound detection angle probes
Ripple crackle echo-signal.
The method that Metal Crack trend and depth are assessed using ultrasonic electromagnetic principle, further, is performing step a, step
After rapid b, step c, in step d, ultrasound detection is calculated according to the frequency and chip area of ultrasound detection angle probe and tiltedly visited
The angle of flare of head, the echo letter of crackle is run into conjunction with the ultrasonic wave of the two ultrasound detection angle probes transmitting obtained in step a
Number time value determines the angle of inclination that relation function calculates relatively accurate crackle with crack inclination angle scale.
The beneficial effects of the invention are as follows assess device and side of the Metal Crack trend with depth using ultrasonic electromagnetic principle
Method, using ultrasound and vortex combined detection method, design uses an EDDY CURRENT probe and two ultrasound detection angle probes
Coupling probe scanning and searching mechanism is made, is first worked as with eddy current method positioning metal material surface crackle aperture position and assessment crack depth
Amount, then assesses crack depth direction trend and crack depth equivalent with ultrasonic method, efficiently solves what can not be realized so far
Metal material crack orientation and crack depth equivalent rapid evaluation problem.
The present invention is described in further detail with reference to embodiments, but the ultrasonic electromagnetic principle that utilizes of the present invention is assessed
Metal Crack is moved towards to be not limited to embodiment with the device and method of depth.
Brief description of the drawings
The present invention is further described for middle embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the combination scanning probe schematic device of first embodiment of the invention.
Fig. 2 is the metal material crack detection schematic diagram vertically downward of first embodiment of the invention.
Fig. 3 is the metal material crackle vortex induction signal during crack detection vertically downward of first embodiment of the invention
The echo-signal schematic diagram of crackle vertically downward is run into two ultrasonic waves.
Fig. 4 is the metal material Incline Crack detects schematic diagram of first embodiment of the invention.
Fig. 5 be first embodiment of the invention metal material Incline Crack detection process in crackle vortex induction signal and two
Individual ultrasonic wave runs into the echo-signal schematic diagram of Incline Crack.
Fig. 6 is that the surface of the metal material crackle of second embodiment of the invention is moved towards to judge and coupling probe scanning and searching mechanism side
To adjustment schematic diagram.
In figure, U1. incidence angles are the ultrasound detection angle probe of fixed value, and U2. incidence angles are oblique for the ultrasound detection of fixed value
Probe, E. EDDY CURRENT probes, 1. tested metal materials, C1. crackles vertically downward, C2. Incline Cracks, θ ultrasound detections are oblique
Probe incidence angle, EVCrackle vortex induction signal amplitude, t0Crackle vortex induction signal amplitude reaches the time value of maximum,
t1Ultrasonic wave runs into the echo-signal time value of crackle, t2Ultrasonic wave runs into the echo-signal time value of crackle, AE. arrays whirlpool
Detection probe is flowed, U1 ' incidence angles are variable ultrasound detection angle probe, and U2 ' incidence angles are variable ultrasound detection angle probe.
Embodiment
First embodiment, as shown in figure 1, assessing Metal Crack trend and the device of depth using ultrasonic electromagnetic principle, is adopted
Coupling probe scanning and searching mechanism is made with an EDDY CURRENT probe E and two ultrasound detection angle probes U1, U2, it is described two super
Sound detection angle probe U1, U2 incidence angle θ, frequency, material, shape are identical, and incidence angle θ is fixed value, and two ultrasound detections are oblique
Probe U1, U2 specular is fixed, so that the ultrasonic wave specular of two ultrasound detection angle probes U1, U2 transmitting, intersecting；Institute
EDDY CURRENT probe E is stated, two ultrasound detection angle probes U1, U2 middle is placed in.
First embodiment, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Metal Crack trend is assessed and deep using ultrasonic electromagnetic principle
The method of degree, using ultrasound and vortex combined detection method, first with eddy current method positioning metal material surface crackle aperture position
And crack depth equivalent is assessed, then assess crack depth direction with ultrasonic method and move towards, methods described comprises the following steps,
A. using the reference block for the standard intraocular's crackle for being machined with different depth and differing tilt angles to coupling probe
EDDY CURRENT probe E and ultrasound detection angle probe U1, U2 in scanning and searching mechanism carry out crack depth direction trend and crackle is deep
Equivalent demarcation is spent, EDDY CURRENT probe E crackle vortex induction signal amplitude E is obtainedV, phase and crack depth demarcation relation
Function, the ultrasonic wave for obtaining two ultrasound detection angle probe U1, U2 transmittings runs into the echo-signal time value t of crackle1、t2With splitting
Relation function is demarcated at line angle of inclination；The material of the reference block, structure are identical with tested metal material；
B. coupling probe scanning and searching mechanism is placed in the tested detection faces of metal material 1；Two ultrasound detection angle probes U1, U2
Connect ultrasound measuring instrument, EDDY CURRENT probe E link eddy current testing instruments；
C. coupling probe scanning and searching mechanism, the metal material in EDDY CURRENT probe E investigative ranges are moved with constant speed
When expecting that there is crackle on 1 surface, EDDY CURRENT probe E cracks vortex induction signal, and crackle vortex induction signal is sent to whirlpool
Flow detector；When EDDY CURRENT probe is reached exactly to directly over crackle opening, crackle vortex induction signal amplitude EVReach
Maximum, according to the EDDY CURRENT probe E obtained in step a crackle vortex induction signal amplitude EV, phase and crackle it is deep
Scale determines relation function and calculates crack depth equivalent relative to standard intraocular's crackle；
D. as crackle vortex induction signal amplitude EVT when reaching maximum0, eddy current testing instrument is while send trigger signal extremely
Ultrasound measuring instrument and coupling probe scanning and searching mechanism, coupling probe scanning and searching mechanism stop movement while receiving trigger signal, surpass
Two ultrasound detection angle probe U1, U2 transmitting ultrasonic waves of excitation while sound detection instrument receives trigger signal；When two ultrasounds
When detecting the sonication times axle waveform symmetry of angle probe U1, U2 transmitting, i.e., when two ultrasonic waves run into the echo-signal of crackle
Between value t1、t2When identical, then illustrate crackle C1 vertically downward；When the ultrasonic wave that two ultrasound detection angle probes U1, U2 launch
When countershaft waveform is asymmetric, i.e., two ultrasonic waves run into the echo-signal time value t of crackle1、t2When differing, then illustrate that this splits
Line is Incline Crack C2, and crackle is run into according to two ultrasound detection angle probes U1, the U2 obtained in step a ultrasonic waves launched
Echo-signal time value t1、t2The angle of inclination of Incline Crack can be calculated by determining relation function with crack inclination angle scale, be commented
Estimate Incline Crack depth direction trend.
Second embodiment, as shown in fig. 6, assessing Metal Crack trend and the device of depth using ultrasonic electromagnetic principle, enters
One step, the EDDY CURRENT probe E in the coupling probe scanning and searching mechanism is substituted using array eddy current probe AE.Utilize
The method that ultrasonic electromagnetic principle assesses Metal Crack trend and depth, further, after step a, step b is performed, in step c
In, when array eddy current probe AE is reached exactly to directly over crackle opening, crackle vortex induction signal amplitude EVReach most
Big value, according to the crackle vortex induction signal amplitude E obtained in step aV, phase and crack depth demarcation relation function calculate
Go out the crack depth equivalent relative to standard intraocular's crackle；In step d, further, using array eddy current probe AE
The surface trend of the tested crackle of metal material 1 is judged, when surface trend and the coupling probe scanning machine of the tested crackle of metal material 1
During the scanning direction out of plumb of structure, using the maximum array element of crackle vortex induction signal in array eddy current probe AE as the center of circle,
Rotation combination probe scanning mechanism, moves towards coupling probe scanning and searching mechanism scanning direction and the surface of the tested crackle of metal material 1
Vertically, to obtain two ultrasound detection angle probes U1, U2 maximum supersonic crack echo-signal.
3rd embodiment, assesses Metal Crack trend and the method for depth using ultrasonic electromagnetic principle, further, is holding
After row step a, step b, step c, in step d, calculated according to ultrasound detection angle probe U1, U2 frequency and chip area
Go out ultrasound detection angle probe U1, U2 angle of flare, launch in conjunction with two ultrasound detection angle probes U1, the U2 obtained in step a
Ultrasonic wave run into the echo-signal time value t of crackle1、t2Determine relation function with crack inclination angle scale and calculate essence relatively
The angle of inclination of true crackle.
Above-described embodiment be only used for further illustrating the present invention using ultrasonic electromagnetic principle assess Metal Crack trend with
The device and method of depth, but the invention is not limited in embodiment, every technical spirit according to the present invention is implemented to more than
Any simple modification, equivalent variations and modification that example is made, each fall within the protection domain of technical solution of the present invention.
Claims (5)
1. the device of Metal Crack trend and depth is assessed using ultrasonic electromagnetic principle, it is characterised in that：Examined using a vortex
Measuring point is popped one's head in and two ultrasound detection angle probes make coupling probe scanning and searching mechanism, the incidence of described two ultrasound detection angle probes
Angle, frequency, material, shape are identical, and incidence angle is fixed value, and two ultrasound detection angle probe speculars are fixed, so that two
It is the ultrasonic wave specular of ultrasound detection angle probe transmitting, intersecting；The EDDY CURRENT probe, is placed in two ultrasound detections oblique
The middle of probe.
2. according to claim 1 assess Metal Crack trend and the device of depth, its feature using ultrasonic electromagnetic principle
It is：Further, the EDDY CURRENT probe in the coupling probe scanning and searching mechanism is substituted using array eddy current probe.
3. assess the method for Metal Crack trend and depth using ultrasonic electromagnetic principle, using the device described in claim 1, its
It is characterised by：Using ultrasound and vortex combined detection method, first with eddy current method positioning metal material surface crackle aperture position
And crack depth equivalent is assessed, then assess crack depth direction with ultrasonic method and move towards, methods described comprises the following steps,
A. using the reference block for the standard intraocular's crackle for being machined with different depth and differing tilt angles to coupling probe scanning
EDDY CURRENT probe and ultrasound detection angle probe in mechanism carry out crack depth direction trend and the demarcation of crack depth equivalent,
Crackle vortex induction signal amplitude, phase and crack depth the demarcation relation function of EDDY CURRENT probe are obtained, two are obtained
The ultrasonic wave of ultrasound detection angle probe transmitting runs into the echo-signal time value of crackle and crack inclination angle scale determines relation function；
The material of the reference block, structure are identical with tested metal material；
B. coupling probe scanning and searching mechanism is placed in tested metal material detection faces；Two ultrasound detection angle probe connection ultrasound inspections
Survey instrument, EDDY CURRENT probe connection eddy current testing instrument；
C. coupling probe scanning and searching mechanism, the metal material table in EDDY CURRENT probe investigative range are moved with constant speed
When there is crackle in face, EDDY CURRENT probe cracks vortex induction signal, and crackle vortex induction signal is sent to EDDY CURRENT
Instrument；When EDDY CURRENT probe is reached exactly to directly over crackle opening, crackle vortex induction signal amplitude reaches maximum, root
Relation letter is demarcated according to the crackle vortex induction signal amplitude, phase and crack depth of the EDDY CURRENT probe obtained in step a
Number calculates the crack depth equivalent relative to standard intraocular's crackle；
D. when crackle vortex induction signal amplitude reaches maximum, eddy current testing instrument sends trigger signal to ultrasound and examined simultaneously
Instrument and coupling probe scanning and searching mechanism are surveyed, coupling probe scanning and searching mechanism stops movement, ultrasound detection while receiving trigger signal
Two ultrasound detection angle probe transmitting ultrasonic waves of excitation while instrument receives trigger signal；When two ultrasound detection angle probe hairs
During the sonication times axle waveform symmetry penetrated, i.e., when the echo-signal time value that two ultrasonic waves run into crackle is identical, then illustrate
The crackle is vertically downward；When the sonication times axle waveform of two ultrasound detection angle probe transmittings is asymmetric, i.e., two ultrasounds
When the echo-signal time value that ripple runs into crackle is differed, then it is Incline Crack to illustrate the crackle, according to two obtained in step a
The ultrasonic wave of individual ultrasound detection angle probe transmitting runs into the echo-signal time value of crackle and crack inclination angle scale determines relation letter
Number can calculate the angle of inclination of Incline Crack, assess Incline Crack depth direction trend.
4. the method according to claim 3 that Metal Crack trend and depth are assessed using ultrasonic electromagnetic principle, using power
Profit requires the device described in 2, it is characterised in that：Further, after step a, step b is performed, in step c, when array whirlpool
When stream detection probe is reached exactly to directly over crackle opening, crackle vortex induction signal amplitude reaches maximum, according in step a
Obtained crackle vortex induction signal amplitude, phase and crack depth demarcation relation function is calculated and split relative to standard intraocular
The crack depth equivalent of line；In step d, further, tested metal material crackle is judged using array eddy current probe
Surface trend, when the surface trend and the scanning direction out of plumb of coupling probe scanning and searching mechanism of tested metal material crackle,
Using the maximum array element of crackle vortex induction signal in array eddy current probe as the center of circle, rotation combination probe scanning mechanism makes
Coupling probe scanning and searching mechanism scanning direction is vertical with the surface trend of tested metal material crackle, oblique to obtain two ultrasound detections
The maximum supersonic crack echo-signal of probe.
5. according to claim 3 assess Metal Crack trend and the method for depth, its feature using ultrasonic electromagnetic principle
It is：Further, performing step a, step b, after step c, in step d, according to the frequency of ultrasound detection angle probe and
Chip area calculates the angle of flare of ultrasound detection angle probe, in conjunction with the two ultrasound detection angle probes obtained in step a
The ultrasonic wave of transmitting runs into the echo-signal time value of crackle and crack inclination angle scale determines relation function and calculates essence relatively
The angle of inclination of true crackle.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105510442B (en) * | 2015-12-22 | 2018-09-18 | 北京欧宁航宇检测技术有限公司 | More phased array probe dynamic linkage focus detection methods |
| CN105510441B (en) * | 2015-12-22 | 2018-04-06 | 北京欧宁航宇检测技术有限公司 | Multichannel combination probe linkage detection method |
| CN106324084A (en) * | 2016-08-30 | 2017-01-11 | 中车青岛四方机车车辆股份有限公司 | Crack depth detection method |
| CN108008007A (en) * | 2017-12-26 | 2018-05-08 | 天津忠旺铝业有限公司 | Aluminium alloy cast ingot defect-detecting equipment and method of detection |
| CN109142512B (en) * | 2018-08-08 | 2020-11-03 | 爱德森（厦门）电子有限公司 | Automatic evaluation device and method for inclined cracks of in-service track |
| CN111595937B (en) * | 2019-02-21 | 2023-07-11 | 宝山钢铁股份有限公司 | Method for measuring crack depth of V-shaped roller by ultrasonic waves |
| CN110849962A (en) * | 2019-10-11 | 2020-02-28 | 大唐水电科学技术研究院有限公司 | Device and method for evaluating trend and depth of metal crack by utilizing electromagnetic ultrasonic principle |
| CN115728389B (en) * | 2023-01-12 | 2023-05-16 | 南京地铁运营咨询科技发展有限公司 | Rail transit vehicle component quality detection device and method |
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