CN106324086A - Double-layer coaxial screw hole detection device and double-layer coaxial screw hole detection method - Google Patents
Double-layer coaxial screw hole detection device and double-layer coaxial screw hole detection method Download PDFInfo
- Publication number
- CN106324086A CN106324086A CN201610858572.2A CN201610858572A CN106324086A CN 106324086 A CN106324086 A CN 106324086A CN 201610858572 A CN201610858572 A CN 201610858572A CN 106324086 A CN106324086 A CN 106324086A
- Authority
- CN
- China
- Prior art keywords
- screw
- eddy current
- middle bar
- bottom face
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G01N27/904—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 with two or more sensors
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth 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 Magnetic Means (AREA)
Abstract
The invention discloses a double-layer coaxial screw hole detection device and a double-layer coaxial screw hole detection method. The device comprises an upper rod, a middle rod, lower rods and a plurality of eddy current testing probes. A detecting rod with a unique structure is adopted to be inserted into an upper layer screw hole and a lower layer screw hole for performing swivel scanning, and the eddy current scanning of two layers of screw holes can be completed by two times of swivel scanning, so that the problem of screw hole defect detection of a double-layer screw hole workpiece is effectively solved, and the detection efficiency is greatly improved.
Description
Art
The present invention relates to a kind of the cannot-harm-detection device and method, particularly relate to a kind of double-layer coaxial screw hole detection device and
Method.
Background technology
The fastening structure of some large aircraft blade uses double-deck Screw hole structure, regular for ensureing that blade runs safety need
Screw defect is carried out Non-Destructive Testing.At present, generally use eddy current detection method, detect the limit, hole of screw, inner wall defect, but by
Then double-deck Screw hole structure, eddy current probe scanning difficulty is relatively big, and detection efficiency is extremely low.
Summary of the invention
It is an object of the invention to overcome the deficiency of prior art, it is provided that a kind of double-layer coaxial screw hole detection device and side
Method, uses the feeler lever that structure is unique, inserts upper strata screw respectively and lower floor's screw carries out rotating scanning, rotate scanning by twice
The eddy current scanning of double-deck screw can be completed.
The technical solution adopted for the present invention to solve the technical problems is: a kind of double-layer coaxial screw hole detection device, including
Upper boom, middle bar, lower beam, multiple eddy current probe, it is characterised in that: described upper boom is cylinder, and its external diameter is more than tested spiral shell
The diameter in hole；Described middle bar is cylinder, and its external diameter is equal to the diameter of tested screw, and the upper surface of middle bar is fixed on the end of upper boom
End face center；On upper boom bottom face, the part around middle bar upper surface fixes an eddy current probe, the lateral circle surface footpath of middle bar
To fixing string eddy current probe group, described eddy current probe group is rearranged by multiple eddy current probes；Under described
Bar is elastic rod, and the upper surface of lower beam is fixed on the bottom face of middle bar, outside lower beam is tilted towards centered by middle bar axis, under
Bar is perpendicular to the spacing that middle bar bottom face direction length is equal between double-deck screw, and lower beam bottom face is centered by middle bar axis
Rotate interior diameter equal to the diameter of screw；The bottom face of lower beam fixes an eddy current probe.
A kind of double-layer coaxial screw detection method, uses above-mentioned device, it is characterised in that: device is inserted respectively upper strata
Screw and lower floor's screw carry out rotating scanning, rotate scanning by twice and can complete the eddy current scanning of double-deck screw, including such as
Lower step,
A. being inserted from top to bottom by device in the screw of upper strata, on the upper boom bottom face in device, the part around middle bar upper surface is firm
The good hole upper periphery with upper strata screw is close to；The inner surface of the middle bar side side face in device and upper strata screw is close to；In device
Lower beam passes upper strata screw, and the bottom face of lower beam just hole upper periphery with lower floor screw is close to；
B. rotary apparatus centered by the axis of device, is fixed on upper boom bottom face the whirlpool of part around middle bar upper surface
The hole upper periphery of stream detection probe scanning upper strata screw；The eddy current probe group scanning upper strata being fixed on the lateral circle surface of bar
The inner surface of screw；It is fixed on the hole upper periphery of the eddy current probe scanning lower floor screw of lower beam bottom face；Device rotates one
In week, the eddy current scanning of the hole upper periphery of the hole upper periphery of upper strata screw, the inner surface of upper strata screw, lower floor's screw can be completed；
C. being inserted from the bottom up by device in lower floor's screw, on the upper boom bottom face in device, the part around middle bar upper surface is firm
The good following peripheral, hole with lower floor screw is close to；The inner surface of the middle bar side side face in device and lower floor's screw is close to；In device
Lower beam passes lower floor's screw, and the bottom face of lower beam just following peripheral, hole with upper strata screw is close to；
D. rotary apparatus centered by the axis of device, is fixed on upper boom bottom face the whirlpool of part around middle bar upper surface
The following peripheral, hole of stream detection probe scanning lower floor screw；The eddy current probe group scanning lower floor being fixed on the lateral circle surface of bar
The inner surface of screw；It is fixed on the following peripheral, hole of the eddy current probe scanning upper strata screw of lower beam bottom face；Device rotates one
In week, the eddy current scanning of the following peripheral, hole of the following peripheral, hole of lower floor's screw, the inner surface of lower floor's screw, upper strata screw can be completed.
A kind of double-layer coaxial screw hole detection device, further, device includes upper boom, middle bar, multiple lower beam, multiple eddy current
Detection probe, described upper boom is cylinder, and its external diameter is more than the diameter of tested screw；Described middle bar is cylinder, its external diameter etc.
In the diameter of tested screw, the upper surface of middle bar is fixed on the bottom face center of upper boom；Around middle bar upper end on upper boom bottom face
The part in face fixes multiple eddy current probe, the lateral circle surface radially fixed multiple row eddy current probe group of middle bar, every string whirlpool
Stream detection probe group is rearranged by multiple eddy current probes；The plurality of lower beam is elastic rod, the upper surface of multiple lower beams
Being fixed on the bottom face of bar, outside multiple lower beams are tilted towards centered by middle bar axis, multiple lower beams are perpendicular at the bottom of middle bar
End face direction length is equal to the spacing between double-deck screw, straight in the rotation centered by middle bar axis of multiple lower beam bottom faces
Footpath is equal to the diameter of screw；The bottom face of each lower beam fixes one or more eddy current probe.So fill during detection
Put one low-angle of rotation, scanning can be completed.
The invention has the beneficial effects as follows that a kind of double-layer coaxial screw hole detection device and method use the feeler lever that structure is unique,
Insert upper strata screw respectively and lower floor's screw carries out rotating scanning, rotate scanning by twice and can complete the eddy current of double-deck screw
Scanning, efficiently solves a screw defects detection difficult problem for double-deck screw workpiece, and detection efficiency is greatly improved.
Below in conjunction with embodiment, the present invention is described in further detail, but the detection of a kind of double-layer coaxial screw of the present invention
Device and method is not limited to embodiment.
Accompanying drawing explanation
The present invention is further described for middle embodiment.
Fig. 1 is the three dimensional structure schematic diagram of a kind of double-layer coaxial screw hole detection device of the embodiment of the present invention one.
Fig. 2 is the sectional view of a kind of double-layer coaxial screw hole detection device of the embodiment of the present invention one.
Fig. 3 is a kind of double-layer coaxial screw hole detection device of the embodiment of the present invention one and double-deck screw workpiece schematic diagram.
Fig. 4 is a kind of double-layer coaxial screw detection method schematic diagram of the embodiment of the present invention one.
Fig. 5 is the three dimensional structure schematic diagram of a kind of double-layer coaxial screw hole detection device of the embodiment of the present invention two.
In figure, 1. upper boom, 2. in bar, 3. lower beam, 4. eddy current probe, 40. eddy current probe group, 5. upper strata spiral shells
Hole, 6. lower floor's screw.
Detailed description of the invention
Embodiment one, as shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of double-layer coaxial screw hole detection device, including upper boom 1, in
Bar 2, lower beam 3, multiple eddy current probe 4, it is characterised in that: described upper boom 1 is cylinder, and its external diameter is more than tested screw
Diameter；Described middle bar 2 is cylinder, and its external diameter is equal to the diameter of tested screw, and the upper surface of middle bar 2 is fixed on the end of upper boom 1
End face center；On upper boom 1 bottom face, the part around middle bar 2 upper surface fixes an eddy current probe 4, the side week of middle bar 2
Face radially fixed string eddy current probe group 40, described eddy current probe group 40 is by multiple eddy current probe 4 arrangement groups
Become；Described lower beam 3 is elastic rod, and the upper surface of lower beam 3 is fixed on the bottom face of middle bar 2, and lower beam 3 with middle bar 2 axis is
Centroclinal outwards, lower beam 3 is perpendicular to middle bar 2 bottom face direction length equal to the spacing between double-deck screw, lower beam 3 bottom face
The interior diameter that rotates centered by middle bar 2 axis is equal to the diameter of screw；The bottom face of lower beam 3 is fixed an EDDY CURRENT and is visited
4.
A kind of double-layer coaxial screw detection method, uses above-mentioned device, it is characterised in that: device is inserted respectively upper strata
Screw 5 and lower floor's screw 6 carry out rotating scanning, rotate scanning by twice and can complete the eddy current scanning of double-deck screw, including
Following steps,
A. device is inserted from top to bottom in upper strata screw 5, around the portion of middle bar 2 upper surface on upper boom 1 bottom face in device
Point just the hole upper periphery with upper strata screw 5 is close to；The inner surface of middle bar 2 lateral circle surface in device and upper strata screw 5 is close to；Dress
Lower beam in putting 3 is through upper strata screw 5, and the bottom face of lower beam 3 just hole upper periphery with lower floor screw 6 is close to；
B. rotary apparatus centered by the axis of device, is fixed on upper boom 1 bottom face the part around middle bar 2 upper surface
The hole upper periphery of eddy current probe 4 scanning upper strata screw 5；The eddy current probe group 40 being fixed on the lateral circle surface of bar 2
The inner surface of scanning upper strata screw 5；It is fixed on the hole last week of the eddy current probe 4 scanning lower floor screw 6 of lower beam 3 bottom face
Limit；Device rotates a circle, and can complete on the hole of the hole upper periphery of upper strata screw 5, the inner surface of upper strata screw 5, lower floor's screw 6
The eddy current scanning of periphery；
C. device is inserted from the bottom up in lower floor's screw 6, around the portion of middle bar 2 upper surface on upper boom 1 bottom face in device
Point just the following peripheral, hole with lower floor screw 6 is close to；The inner surface of middle bar 2 lateral circle surface in device and lower floor screw 6 is close to；Dress
Lower beam in putting 3 is through lower floor's screw 6, and the bottom face of lower beam 3 just following peripheral, hole with upper strata screw 5 is close to；
D. rotary apparatus centered by the axis of device, is fixed on upper boom 1 bottom face the part around middle bar 2 upper surface
The following peripheral, hole of eddy current probe 4 scanning lower floor screw 6；The eddy current probe group 40 being fixed on the lateral circle surface of bar 2
The inner surface of scanning lower floor screw 6；It is fixed on the hole next week of the eddy current probe 4 scanning upper strata screw 5 of lower beam 3 bottom face
Limit；Device rotates a circle, and can complete under the hole of the following peripheral, hole of lower floor's screw 6, the inner surface of lower floor's screw 6, upper strata screw 5
The eddy current scanning of periphery.
Embodiment two, as it is shown in figure 5, a kind of double-layer coaxial screw hole detection device, further, device include upper boom 1, in
Bar 2, multiple lower beam 3, multiple eddy current probe 4, described upper boom 1 is cylinder, and its external diameter is more than the diameter of tested screw；Institute
Stating middle bar 2 is cylinder, and its external diameter is equal to the diameter of tested screw, and the upper surface of middle bar 2 is fixed in the bottom face of upper boom 1
The heart；On upper boom 1 bottom face, the part around middle bar 2 upper surface fixes multiple eddy current probe 4, and the lateral circle surface of middle bar 2 is radially
Fixing multiple row eddy current probe group 40, every string eddy current probe group 40 is rearranged by multiple eddy current probes 4；Institute
Stating multiple lower beam 3 is elastic rod, and the upper surface of multiple lower beams 3 is fixed on the bottom face of middle bar 2, and multiple lower beams 3 are with in middle bar 2
Outside being tilted towards centered by axis, multiple lower beams 3 are perpendicular to the spacing that middle bar 2 bottom face direction length is equal between double-deck screw,
Multiple lower beam 3 bottom faces interior diameter that rotates centered by middle bar 2 axis is equal to the diameter of screw；The bottom of each lower beam 3
One or more eddy current probe 4 is fixed in face.
Above-described embodiment is only for further illustrating a kind of double-layer coaxial screw hole detection device and the method for the present invention, but basis
Invention is not limited to embodiment, every above example is made according to the technical spirit of the present invention any simple modification,
Equivalent variations and modification, each fall within the protection domain of technical solution of the present invention.
Claims (3)
1. a double-layer coaxial screw hole detection device, including upper boom, middle bar, lower beam, multiple eddy current probe, its feature exists
In: described upper boom is cylinder, and its external diameter is more than the diameter of tested screw；Described middle bar is cylinder, and its external diameter is equal to tested
The diameter of screw, the upper surface of middle bar is fixed on the bottom face center of upper boom；Around the portion of middle bar upper surface on upper boom bottom face
Dividing and fix an eddy current probe, the lateral circle surface radially fixed string eddy current probe group of middle bar, described EDDY CURRENT is visited
Head group is rearranged by multiple eddy current probes；Described lower beam is elastic rod, and the upper surface of lower beam is fixed on the bottom of middle bar
On face, outside lower beam is tilted towards centered by middle bar axis, lower beam is perpendicular to middle bar bottom face direction length equal to double-deck screw
Between spacing, lower beam bottom face rotates interior diameter equal to the diameter of screw centered by middle bar axis；The bottom of lower beam
An eddy current probe is fixed in face.
2. a double-layer coaxial screw detection method, uses the device described in claim 1, it is characterised in that: by device respectively
Inserting upper strata screw and lower floor's screw carries out rotating scanning, the eddy current that can complete double-deck screw by twice rotation scanning is swept
Look into, comprise the steps,
A. being inserted from top to bottom by device in the screw of upper strata, on the upper boom bottom face in device, the part around middle bar upper surface is firm
The good hole upper periphery with upper strata screw is close to；The inner surface of the middle bar side side face in device and upper strata screw is close to；In device
Lower beam passes upper strata screw, and the bottom face of lower beam just hole upper periphery with lower floor screw is close to；
B. rotary apparatus centered by the axis of device, is fixed on upper boom bottom face the whirlpool of part around middle bar upper surface
The hole upper periphery of stream detection probe scanning upper strata screw；The eddy current probe group scanning upper strata being fixed on the lateral circle surface of bar
The inner surface of screw；It is fixed on the hole upper periphery of the eddy current probe scanning lower floor screw of lower beam bottom face；Device rotates one
In week, the eddy current scanning of the hole upper periphery of the hole upper periphery of upper strata screw, the inner surface of upper strata screw, lower floor's screw can be completed；
C. being inserted from the bottom up by device in lower floor's screw, on the upper boom bottom face in device, the part around middle bar upper surface is firm
The good following peripheral, hole with lower floor screw is close to；The inner surface of the middle bar side side face in device and lower floor's screw is close to；In device
Lower beam passes lower floor's screw, and the bottom face of lower beam just following peripheral, hole with upper strata screw is close to；
D. rotary apparatus centered by the axis of device, is fixed on upper boom bottom face the whirlpool of part around middle bar upper surface
The following peripheral, hole of stream detection probe scanning lower floor screw；The eddy current probe group scanning lower floor being fixed on the lateral circle surface of bar
The inner surface of screw；It is fixed on the following peripheral, hole of the eddy current probe scanning upper strata screw of lower beam bottom face；Device rotates one
In week, the eddy current scanning of the following peripheral, hole of the following peripheral, hole of lower floor's screw, the inner surface of lower floor's screw, upper strata screw can be completed.
A kind of double-layer coaxial screw hole detection device the most according to claim 1, it is characterised in that: further, including on
Bar, middle bar, multiple lower beam, multiple eddy current probe, described upper boom is cylinder, and its external diameter is more than the diameter of tested screw；
Described middle bar is cylinder, and its external diameter is equal to the diameter of tested screw, and the upper surface of middle bar is fixed on the bottom face center of upper boom；
On upper boom bottom face, the part around middle bar upper surface fixes multiple eddy current probe, the radially fixed multiple row of lateral circle surface of middle bar
Eddy current probe group, every string eddy current probe group is rearranged by multiple eddy current probes；The plurality of lower beam is
Elastic rod, the upper surface of multiple lower beams is fixed on the bottom face of middle bar, and multiple lower beams are tilted towards centered by middle bar axis
Outward, multiple lower beams are perpendicular to middle bar bottom face direction length equal to the spacing between double-deck screw, multiple lower beam bottom faces with in
The interior diameter that rotates centered by bar axis is equal to the diameter of screw；The bottom face of each lower beam fixes the inspection of one or more eddy current
Probing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858572.2A CN106324086B (en) | 2016-09-29 | 2016-09-29 | Double-layer coaxial screw hole detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858572.2A CN106324086B (en) | 2016-09-29 | 2016-09-29 | Double-layer coaxial screw hole detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106324086A true CN106324086A (en) | 2017-01-11 |
| CN106324086B CN106324086B (en) | 2023-04-07 |
Family
ID=57820252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610858572.2A Active CN106324086B (en) | 2016-09-29 | 2016-09-29 | Double-layer coaxial screw hole detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106324086B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012202984A (en) * | 2011-03-28 | 2012-10-22 | Micro-Fix Co Ltd | Vortex flaw detection probe and vortex flaw detector |
| KR20130013681A (en) * | 2011-07-28 | 2013-02-06 | 한국전력공사 | Apparatus for inspecting bolt and bolt hole defect |
| CN103344745A (en) * | 2013-07-12 | 2013-10-09 | 爱德森（厦门）电子有限公司 | Device and method for automatically and spirally scanning inner wall of screw hole by eddy |
| CN204064225U (en) * | 2014-06-24 | 2014-12-31 | 吴朝芳 | A kind of pneumatic internal thread detection device for automotive hub |
| CN206057251U (en) * | 2016-09-29 | 2017-03-29 | 爱德森（厦门）电子有限公司 | A kind of double-layer coaxial screw hole detection device |
-
2016
- 2016-09-29 CN CN201610858572.2A patent/CN106324086B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012202984A (en) * | 2011-03-28 | 2012-10-22 | Micro-Fix Co Ltd | Vortex flaw detection probe and vortex flaw detector |
| KR20130013681A (en) * | 2011-07-28 | 2013-02-06 | 한국전력공사 | Apparatus for inspecting bolt and bolt hole defect |
| CN103344745A (en) * | 2013-07-12 | 2013-10-09 | 爱德森（厦门）电子有限公司 | Device and method for automatically and spirally scanning inner wall of screw hole by eddy |
| CN204064225U (en) * | 2014-06-24 | 2014-12-31 | 吴朝芳 | A kind of pneumatic internal thread detection device for automotive hub |
| CN206057251U (en) * | 2016-09-29 | 2017-03-29 | 爱德森（厦门）电子有限公司 | A kind of double-layer coaxial screw hole detection device |
Non-Patent Citations (1)
| Title |
|---|
| JOHN R. BOWLER 等: "Evaluation of Eddy-Current Probe Signals Due to Cracks in Fastener Holes", 《IEEE TRANSACTIONS ON MAGNETIC》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106324086B (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103487502B (en) | The eddy current array probe of detection of complex conductive structure surfaces defect and system | |
| US20050274188A1 (en) | Installation for non-destructive inspection of a part | |
| JP2007024855A (en) | Device and method for detecting heat transfer tube state of heat exchanger | |
| CN105784216A (en) | Detecting method for residual stress of steel structure | |
| CN108534756A (en) | Wind turbines tower inclination checking method | |
| CN107110795A (en) | It is intended for use in the imitative body in the quality control of faultage image | |
| CN108867721B (en) | Method for detecting foundation damage caused by anchoring defects of fan foundation ring | |
| CN206057251U (en) | A kind of double-layer coaxial screw hole detection device | |
| CN105445374A (en) | Ultrasonic phased array detection method for fir type blade roots of nuclear main turbine | |
| CN107101756A (en) | A kind of method for measuring inside workpiece residual stress | |
| CN106324086A (en) | Double-layer coaxial screw hole detection device and double-layer coaxial screw hole detection method | |
| CN206020535U (en) | Probe detector | |
| CN105232069B (en) | Adjustable CBCT system calibratings model | |
| CN106935285B (en) | AP1000 nuclear power plant containment shell deformation detecting methods | |
| US20100026325A1 (en) | Method and device for detecting structural abnormalities in a spherical particle, particularly in a nuclear fuel particle for high temperature or very high temperature reactors | |
| CN112067690A (en) | Inclined axial array annular eccentric eddy current probe and method for small-diameter pipe detection | |
| CN106226406A (en) | Ultrasonic examination detection reference block and detection method thereof | |
| CN206862966U (en) | One kind prevents/relief line ultrasonic phased array imaging detection device | |
| CN104181226A (en) | Multichannel magnetic memory detection device | |
| CN105445302A (en) | Large casting X ray fluoroscopy tool and method thereof | |
| CN204065019U (en) | A kind of multi-channel magnetic memory detection device | |
| CN105277626B (en) | The mock standard part of detection is swept for turbine casing electron beam weld water logging Ultrasonic C | |
| CN209386964U (en) | A kind of three-dimensional coordinate building instrument | |
| CN205157507U (en) | A mock standard spare that is used for turbine casing electron -beam welding seam water logging supersound C to sweep detection | |
| CN114322824A (en) | Auxiliary device for ice-shaped three-dimensional laser scanning and using method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |