CN109444259A - A kind of heterotype tubing absorption type eddy current array probe - Google Patents
A kind of heterotype tubing absorption type eddy current array probe Download PDFInfo
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- CN109444259A CN109444259A CN201811574988.7A CN201811574988A CN109444259A CN 109444259 A CN109444259 A CN 109444259A CN 201811574988 A CN201811574988 A CN 201811574988A CN 109444259 A CN109444259 A CN 109444259A
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- 239000000523 sample Substances 0.000 title claims abstract description 125
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000009659 non-destructive testing Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000006467 substitution reaction 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
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9006—Details, e.g. in the structure or functioning of sensors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention belongs to nuclear power generating equipment nondestructive inspection (NDI) applied technical fields, more particularly to a kind of heterotype tubing absorption type eddy current array probe, purpose is the architectural characteristic and actual demand for fast reactor reactor core assembly outer tube, on the basis of existing technology, a kind of New Vortex array probe mechanism is invented, inside and outside wall eddy current array probe examinations simultaneously can be achieved, eliminate the mechanical long lever system of inner wall scanning, improve detection system efficiency and flexibility.It is characterised in that it includes outer wall eddy current array probe and inner wall eddy current array probe；Outer wall eddy current array probe is arranged on the outer wall of six angle pipes；Inner wall eddy current array probe is arranged on the inner wall of six angle pipes, is attracted each other by magnet and outer wall eddy current array probe, so that outer wall eddy current array probe, inner wall eddy current array probe and six angle pipes fit closely, while realizing the detection for six angle pipes inside and outside wall.
Description
Technical field
The invention belongs to nuclear power generating equipment nondestructive inspection (NDI) applied technical fields, and in particular to a kind of heterotype tubing absorption type vortex
Array probe.
Background technique
Reactor core assembly outer tube, hereinafter referred to as casing are the significant components that fast reactor works in high-temperature sodium media environment,
It is one of safety curtain for preventing nuclear leakage.In order to guarantee safely and steadily running for the facility, casing needs after the completion of production
It carries out non-destructive testing.
The shape of casing is equilateral hexagon pipe structure, hereinafter referred to as six angle pipes, is needed from outwardly and inwardly being examined
It surveys, it is desirable that it can be found that the defects of the crackle or abrasion of surface and inner surface, and it can be found that position and the size of defect, into
And analyze the reason of casing generates defect.Corresponding measure is formulated to avoid causing casing due to same process or other reasons
It damages again, ensures the security reliability operation of nuclear reactor.
Being carried out non-destructive testing using eddy current probe to casing is one of the main method for finding defect.Due to six angle pipes
The subject face product of inner and outer surfaces is larger, if needing the outer surface and Nei Biao from six angle pipes using single-point type eddy current probe technology
Scanning is implemented in face respectively, and since single-point type probe checks that the effective inspection area covered is less, each plane needs repeatedly past
Subject face could be covered by returning scanning, and corner angle dedicated probe must be replaced when the position detection of arrival corner angle to complete.It is whole
A checking process needs take a substantial amount of time, and the requirement to scanning equipment is also very high.
The present invention be directed to the inner and outer surfaces of hexagon or other heterotype tubings to carry out eddy current array probe detection design
A kind of novel mechanism.The inner and outer surfaces eddy current array probe of the prior art needs to be respectively installed to outer wall scanning mechanical arm and interior
On wall scanning machinery stock, the disadvantage is that inside and outside wall detection system is two sets of equipment, need to exist respectively when detecting the same tubing
It is carried out in two systems, detection efficiency is low.Another inner-outer wall scanning machinery stock is axially to be deep into six angle pipes by motor driven
Inside drives axial scanning of popping one's head in, and the length of stock has been fixed, can not if when hexagonal length of tube is greater than the length of stock
It is checked, the flexibility of system is low.Inside and outside wall eddy current array probe is adsorbed on six angle pipes by magnetic suck by the utility model structure
On inside and outside tube wall simultaneously examinations, do not need inner surface scanning machinery stock detection system, improve detection system efficiency and
Flexibility, while reducing equipment development cost.
Summary of the invention
The purpose of the present invention is being directed to the architectural characteristic and actual demand of fast reactor reactor core assembly outer tube, in the prior art
On the basis of, invented a kind of New Vortex array probe mechanism, it can be achieved that inside and outside wall eddy current array probe simultaneously examinations,
The mechanical long lever system of inner wall scanning is eliminated, detection system efficiency and flexibility are improved.
The present invention is implemented as follows:
A kind of heterotype tubing absorption type eddy current array probe, including outer wall eddy current array probe and inner wall eddy current array are visited
Head；Outer wall eddy current array probe is arranged on the outer wall of six angle pipes；Inner wall eddy current array probe is arranged on the inner wall of six angle pipes,
It is attracted each other by magnet and outer wall eddy current array probe, so that outer wall eddy current array probe, inner wall eddy current array probe and six
Cornue fits closely, while realizing the detection for six angle pipes inside and outside wall.
Outer wall eddy current array probe as described above includes preceding positive magnet module, rear positive magnet module, outer wall is advancing slip
Wheel group module, outer wall rear wheel group module and outer wall array probe coil module；Wherein, preceding positive magnet module, rear positive magnetic
Swage block and six angle pipes outer shape are on the contrary, be in V-shape, vertical tube wall direction is magnetized, and it is magnet anode that direction is bonded with tube wall；
The left end of outer wall front wheel group module is arranged in preceding anode magnet module, and rear anode magnet module is arranged in outer wall rear wheel group mould
The right end of block；Outer wall front wheel group module, outer wall rear wheel group module arrangement are in the left and right two of outer wall array probe coil module
End, totally four groups of pulleys, pulley is prominent, with six angle pipes plane contact when detection, and axially free can slide.
The length of outer wall rear wheel group module as described above is greater than the length of outer wall front wheel group module.
Outer wall eddy current array probe as described above is mounted on outer wall scanning mechanical arm, left by outer wall scanning mechanical arm
Move right implementation scanning.
Inner wall eddy current array probe as described above includes preceding cathode magnet module, rear cathode magnet module, inner wall is advancing slip
Wheel group module, inner wall rear wheel group module and inner wall array probe coil module；Wherein, preceding cathode magnet module, rear cathode magnetic
Swage block and six angle pipes outer shape are on the contrary, be in V-shape, vertical tube wall direction is magnetized, and it is magnet cathode that direction is bonded with tube wall；
The left end of inner wall front wheel group module is arranged in preceding cathode magnet module, and rear cathode magnet module is arranged in inner wall rear wheel group mould
The right end of block；Inner wall front wheel group module, inner wall rear wheel group module arrangement are in the left and right two of inner wall array probe coil module
End, totally four groups of pulleys, pulley is prominent, with six angle pipes plane contact when detection, and axially free can slide.
The length of inner wall front wheel group module as described above is greater than the length of inner wall rear wheel group module.
The driving force of inner wall eddy current array probe as described above be by preceding positive magnet module and preceding cathode magnet module,
Positive magnet module is provided after attracting each other with rear two groups of modules of cathode magnet module by outer wall eddy current array probe afterwards.
Preceding positive magnet module, preceding cathode magnet module, rear positive magnet module, rear cathode magnet module as described above
Equal length, the equal length of outer wall front wheel group module and inner wall rear wheel group module, outer wall rear wheel group module with it is interior
The equal length of wall front wheel group module.
As described above when outer wall eddy current array probe and inner wall eddy current array probe are attracted, outer wall array probe coil
Module and the position of inner wall array probe coil module are staggered.
It is sliding after outer wall front wheel group module, outer wall rear wheel group module, inner wall front wheel group module, inner wall as described above
Wheel group module, outer wall array probe coil module, inner wall array probe coil module and six angle pipes contact surface be all made of plastics
It is made.
The beneficial effects of the present invention are:
The core component of outer wall eddy current array probe mechanism is by outer wall array probe coil module 5-1, preceding positive magnet mould
Block 3-1, rear positive magnet module 3-2, outer wall front wheel group module 4-1, outer wall rear wheel group module 4-2 composition.Wherein front and back
Positive magnet module and six angle pipes outer shape are on the contrary, be in V-shape, vertical tube wall direction is magnetized, and it is magnetic that direction is bonded with tube wall
Iron anode；Pulley blocks module arrangement is in probe profiling skeleton plane two sides before and after outer wall, and totally four groups of pulleys, pulley slightly protrude, inspection
With six angle pipes plane contact when survey, and axially free can slide.Outer wall eddy current array probe mechanism needs to be mounted on outer wall scanning
On mechanical arm, implementation scanning is moved left and right by outer wall scanning mechanical arm.
The core component of inner wall eddy current array probe mechanism is by inner wall array probe coil module 5-2, preceding cathode magnet mould
Block 3-3, rear cathode magnet module 3-4, inner wall front wheel group module 4-3, inner wall rear wheel group module 4-4 composition.Wherein front and back
Cathode magnet module is equally with six angle pipes outer shape on the contrary, be in V-shape, vertical tube wall direction is magnetized, and is bonded direction with tube wall
For magnet cathode；Pulley blocks module arrangement is in probe profiling skeleton plane two sides before and after inner wall, and totally four groups of pulleys, pulley are slightly prominent
Out, it and axially free can be slided when detection with six angle pipes plane contact.Inner wall eddy current array probe mechanism driving force is by front and back
Positive magnet module provides after attracting each other with front and back cathode magnet module.
New Vortex array probe structure can be divided into outer surface eddy current array probe 7 and inner surface eddy current array probe 8.Battle array
Column probe coil module is same as the prior art, is all made of the profiling skeleton structure with six angle pipes form fit, and difference exists
The arrangement that misplaces is needed on position in inside and outside wall coil module, coil stimulating and reception when guaranteeing examinations simultaneously
Magnetic field does not interfere with each other.Pulley blocks module, the arrangement of magnets at left and right sides of pulley blocks module are arranged at left and right sides of coil module
Module, pulley blocks module are supported and for internal, outer wall array probe after guaranteeing the absorption of magnet module along six angle pipes
Axially free sliding, while limiting magnet module and directly being contacted with hexagonal tube wall.Examinations can simultaneously for inside and outside wall array probe
As soon as covering six/six angle pipes examined area, achievable root canal material detection three times, improves detection system efficiency back and forth.It adopts
With the mechanical long lever system of magnetic suck mechanism substitution inner wall scanning, the flexible of detection system can not be improved by stock length limitation
Property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of eddy current array probe of the invention；
Fig. 2 is the schematic diagram of outer wall eddy current array probe mechanism of the invention；
Fig. 3 is the schematic diagram of outer wall eddy current array probe mechanism of the invention.
Wherein: 6. six angle pipes, 7. outer wall eddy current array probes, 8. inner wall eddy current array probes, positive magnet mould before 3-1.
Block, positive magnet module after 3-2., cathode magnet module before 3-3., cathode magnet module after 3-4,4-1. outer wall front wheel group mould
Block, 4-2. outer wall rear wheel group module, 4-3. inner wall front wheel group module, 4-4. inner wall rear wheel group module, 5-1. outer wall battle array
Column probe coil module, 5-2. inner wall array probe coil module.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of heterotype tubing absorption type eddy current array probe, including outer wall eddy current array probe 7 and inner wall
Eddy current array probe 8.Outer wall eddy current array probe 7 is arranged on the outer wall of six angle pipes 6.The setting of inner wall eddy current array probe 8 exists
It on the inner wall of six angle pipes 6, is attracted each other by magnet and outer wall eddy current array probe 7, so that outer wall eddy current array probe 7, interior
Wall eddy current array probe 8 is fitted closely with six angle pipes 6, while realizing the detection for 6 inside and outside wall of six angle pipes.
As shown in Fig. 2, outer wall eddy current array probe 7 include preceding positive magnet module 3-1, it is rear positive magnet module 3-2, outer
Wall front wheel group module 4-1, outer wall rear wheel group module 4-2 and outer wall array probe coil module 5-1.Wherein, preceding positive magnetic
Swage block 3-1, rear anode magnet module 3-2 and six angle pipes outer shape are on the contrary, be in V-shape, vertical tube wall direction is magnetized, with pipe
It is magnet anode that wall, which is bonded direction,；The left end of outer wall front wheel group module 4-1 is arranged in preceding anode magnet module 3-1, rear anode
The right end of outer wall rear wheel group module 4-2 is arranged in magnet module 3-2.Outer wall front wheel group module 4-1, outer wall rear wheel group mould
Block 4-2 is arranged in the left and right ends of outer wall array probe coil module 5-1, totally four groups of pulleys, and pulley is prominent, when detection and hexagonal
Pipe plane contact, and axially free can slide.The length of outer wall rear wheel group module 4-2 is greater than outer wall front wheel group module 4-1
Length.Outer wall eddy current array probe 7 is mounted on outer wall scanning mechanical arm, moves left and right implementation by outer wall scanning mechanical arm
Scanning.The outer wall array probe coil module 5-1 and outer wall scanning mechanical arm is existing apparatus.
As shown in figure 3, inner wall eddy current array probe 8 include preceding cathode magnet module 3-3, it is rear cathode magnet module 3-4, interior
Wall front wheel group module 4-3, inner wall rear wheel group module 4-4 and inner wall array probe coil module 5-2.Wherein, preceding cathode magnetic
Swage block 3-3, rear cathode magnet module 3-4 and six angle pipes outer shape are on the contrary, be in V-shape, vertical tube wall direction is magnetized, with pipe
It is magnet cathode that wall, which is bonded direction,；The left end of inner wall front wheel group module 4-3, rear cathode is arranged in preceding cathode magnet module 3-3
The right end of inner wall rear wheel group module 4-4 is arranged in magnet module 3-4.Inner wall front wheel group module 4-3, inner wall rear wheel group mould
Block 4-4 is arranged in the left and right ends of inner wall array probe coil module 5-2, totally four groups of pulleys, and pulley is prominent, when detection and hexagonal
Pipe plane contact, and axially free can slide.The length of inner wall front wheel group module 4-3 is greater than inner wall rear wheel group module 4-4
Length.The driving force of inner wall eddy current array probe 8 be by preceding anode magnet module 3-1 and preceding cathode magnet module 3-3, after just
Pole magnet module 3-2 is provided after attracting each other with rear two groups of modules of cathode magnet module 3-4 by outer wall eddy current array probe 7.Institute
The inner wall array probe coil module 5-2 stated is existing apparatus.
Preceding anode magnet module 3-1, preceding cathode magnet module 3-3, rear positive magnet module 3-2, rear cathode magnet module
The equal length of 3-4, the equal length of outer wall front wheel group module 4-1 and inner wall rear wheel group module 4-4, outer wall rear wheel group
The equal length of module 4-2 and inner wall front wheel group module 4-3.In outer wall eddy current array probe 7 and inner wall eddy current array probe 8
When actuation, outer wall array probe coil module 5-1 and the position of inner wall array probe coil module 5-2 are staggered.
In the present embodiment, outer wall front wheel group module 4-1, outer wall rear wheel group module 4-2, inner wall front wheel group module
4-3, inner wall rear wheel group module 4-4, outer wall array probe coil module 5-1, inner wall array probe coil module 5-2 and hexagonal
The contact surface of pipe 6 is all made of plastics and is made.
Drive outer wall scanning mechanical arm that outer wall eddy current array probe is fitted on the outer wall of six angle pipes when use, before driving
End inner wall mechanical arm protrudes into inner wall eddy current array probe at the front end nozzle of six angle pipes, when front and back cathode magnet module and front and back
Inner wall mechanical arm, at this time under the magnetic force, inside and outside wall coil module and hexagonal are unclamped after the positive external coincidence of magnet module
Pipe fits closely, and examinations is axially moved along six angle pipes in driving outer wall scanning mechanical arm, when the rear end of scanning to six angle pipes
When nozzle goes out, driving rear end inner wall mechanical arm takes out inner wall eddy current array probe, and six angle pipes rotate to next detection faces, equally
The detection of whole six angle pipes is completed in movement three times back and forth.
It is explained in detail above in conjunction with implementation method of the embodiment to invention, but invention is not limited to above-mentioned implementation
Example, within the knowledge of a person skilled in the art, can also make without departing from the purpose of the present invention
Various change out.The content that description in the present invention is not described in detail can use the prior art.
Claims (10)
1. a kind of heterotype tubing absorption type eddy current array probe, it is characterised in that: it includes outer wall eddy current array probe (7) and interior
Wall eddy current array probe (8)；Outer wall eddy current array probe (7) is arranged on the outer wall of six angle pipes (6)；Inner wall eddy current array probe
(8) it is arranged on the inner wall of six angle pipes (6), is attracted each other by magnet and outer wall eddy current array probe (7), so that outer wall is vortexed
Array probe (7), inner wall eddy current array probe (8) and six angle pipes (6) fit closely, while realizing inside and outside for six angle pipes (6)
The detection of wall.
2. heterotype tubing absorption type eddy current array probe according to claim 1, it is characterised in that: the outer wall vortex
Array probe (7) include preceding positive magnet module (3-1), rear positive magnet module (3-2), outer wall front wheel group module (4-1),
Outer wall rear wheel group module (4-2) and outer wall array probe coil module (5-1)；Wherein, preceding positive magnet module (3-1), after
Positive magnet module (3-2) and six angle pipes outer shape are on the contrary, be in V-shape, vertical tube wall direction is magnetized, and is bonded direction with tube wall
For magnet anode；Preceding anode magnet module (3-1) is arranged in the left end of outer wall front wheel group module (4-1), rear anode magnet mould
The right end in outer wall rear wheel group module (4-2) is arranged in block (3-2)；Outer wall front wheel group module (4-1), outer wall rear wheel group mould
Block (4-2) is arranged in the left and right ends of outer wall array probe coil module (5-1), totally four groups of pulleys, and pulley is prominent, when detection with
Six angle pipes plane contact, and axially free can slide.
3. heterotype tubing absorption type eddy current array probe according to claim 2, it is characterised in that: sliding after the outer wall
The length of wheel group module (4-2) is greater than the length of outer wall front wheel group module (4-1).
4. heterotype tubing absorption type eddy current array probe according to claim 2, it is characterised in that: the outer wall vortex
Array probe (7) is mounted on outer wall scanning mechanical arm, moves left and right implementation scanning by outer wall scanning mechanical arm.
5. heterotype tubing absorption type eddy current array probe according to claim 2, it is characterised in that: the inner wall vortex
Array probe (8) include preceding cathode magnet module (3-3), rear cathode magnet module (3-4), inner wall front wheel group module (4-3),
Inner wall rear wheel group module (4-4) and inner wall array probe coil module (5-2)；Wherein, preceding cathode magnet module (3-3), after
Cathode magnet module (3-4) and six angle pipes outer shape are on the contrary, be in V-shape, vertical tube wall direction is magnetized, and is bonded direction with tube wall
For magnet cathode；Preceding cathode magnet module (3-3) is arranged in the left end of inner wall front wheel group module (4-3), rear cathode magnet mould
The right end in inner wall rear wheel group module (4-4) is arranged in block (3-4)；Inner wall front wheel group module (4-3), inner wall rear wheel group mould
Block (4-4) is arranged in the left and right ends of inner wall array probe coil module (5-2), totally four groups of pulleys, and pulley is prominent, when detection with
Six angle pipes plane contact, and axially free can slide.
6. heterotype tubing absorption type eddy current array probe according to claim 5, it is characterised in that: the inner wall is advancing slip
The length of wheel group module (4-3) is greater than the length of inner wall rear wheel group module (4-4).
7. heterotype tubing absorption type eddy current array probe according to claim 5, it is characterised in that: the inner wall vortex
The driving force of array probe (8) is by preceding positive magnet module (3-1) and preceding cathode magnet module (3-3), rear positive magnet mould
Block (3-2) and rear two groups of modules of cathode magnet module (3-4) are provided after attracting each other by outer wall eddy current array probe (7).
8. heterotype tubing absorption type eddy current array probe according to claim 5, it is characterised in that: the preceding positive magnetic
Swage block (3-1), preceding cathode magnet module (3-3), afterwards anode magnet module (3-2), the length of rear cathode magnet module (3-4)
It is equal, the equal length of outer wall front wheel group module (4-1) and inner wall rear wheel group module (4-4), outer wall rear wheel group module
The equal length of (4-2) and inner wall front wheel group module (4-3).
9. heterotype tubing absorption type eddy current array probe according to claim 8, it is characterised in that: described in outer wall whirlpool
When flowing array probe (7) and inner wall eddy current array probe (8) actuation, outer wall array probe coil module (5-1) and inner wall array
The position of probe coil module (5-2) is staggered.
10. heterotype tubing absorption type eddy current array probe according to claim 5, it is characterised in that: before the outer wall
Pulley blocks module (4-1), outer wall rear wheel group module (4-2), inner wall front wheel group module (4-3), inner wall rear wheel group module
The contact surface of (4-4), outer wall array probe coil module (5-1), inner wall array probe coil module (5-2) and six angle pipes (6)
Plastics are all made of to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574988.7A CN109444259B (en) | 2018-12-21 | 2018-12-21 | Special-shaped pipe adsorption type eddy current array probe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811574988.7A CN109444259B (en) | 2018-12-21 | 2018-12-21 | Special-shaped pipe adsorption type eddy current array probe |
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| CN109444259A true CN109444259A (en) | 2019-03-08 |
| CN109444259B CN109444259B (en) | 2024-02-20 |
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| Title |
|---|
| 崔洪岩等: "传热管特殊位置的涡流旋转探头和阵列 探头检查信号初步对比分析研究", 科技视界, no. 7, pages 90 - 94 * |
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|---|---|
| CN109444259B (en) | 2024-02-20 |
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