CN111024810B - Eddy current detection device capable of simultaneously detecting defects of inner wall and outer wall of stainless steel short pipe - Google Patents
Eddy current detection device capable of simultaneously detecting defects of inner wall and outer wall of stainless steel short pipe Download PDFInfo
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- CN111024810B CN111024810B CN201911087859.XA CN201911087859A CN111024810B CN 111024810 B CN111024810 B CN 111024810B CN 201911087859 A CN201911087859 A CN 201911087859A CN 111024810 B CN111024810 B CN 111024810B
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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
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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
- G01N27/9013—Arrangements for scanning
- G01N27/902—Arrangements for scanning by moving the sensors
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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
- G01N27/9093—Arrangements for supporting the sensor; Combinations of eddy-current sensors and auxiliary arrangements for marking or for rejecting
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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
Abstract
The invention relates to a vortex detection device capable of simultaneously detecting defects of inner and outer walls of a stainless steel short pipe. Compared with the prior art, the eddy current detection device can simultaneously detect the defects of the inner wall and the outer wall of the stainless steel pipe, the simultaneous detection of the inner wall and the outer wall of the stainless steel pipe is more simply and conveniently realized, a brand new detection device does not need to be additionally opened, and the eddy current detection device is time-saving, labor-saving, flexible and reliable; the eddy current detection device ensures the continuous stability of the eddy current point type probe and the through type probe in the detection process, avoids the negative influence of the lift-off effect on the detection precision during detection, and finally ensures the reliability of the detection result; two V groove support cooperation detection mechanism impels and descends or rises in proper order in detecting cooperation supporting mechanism, guarantees that whole testing process goes on automatically, uses manpower sparingly.
Description
Technical Field
The invention relates to a steel pipe defect detection device, in particular to an eddy current detection device capable of simultaneously detecting defects of inner and outer walls of a stainless steel short pipe.
Background
Eddy current inspection is one of the most common nondestructive detection methods in modern industry, has the advantages of high detection speed and high detection sensitivity, does not need to detect a coupling medium, has no pollution to the environment, and is widely applied to the detection of surface and near-surface defects of ferromagnetic pipes, parts and the like.
The stainless steel pipe is widely applied to industries such as automobiles, household appliances and the like, has extremely strict requirements on the quality of the pipe, and is subjected to eddy current flaw detection under the common condition to control the defects of the inner surface and the outer surface of the stainless steel pipe. At present, when the eddy current flaw detection is carried out on a stainless steel pipe, a through eddy current probe is generally adopted, the defects on the outer surface of the steel pipe are mainly detected, and the through eddy current probe also has certain detection capability on the defects on the inner wall of a thin-walled pipe. However, due to the skin effect of eddy current, the through eddy current flaw detection cannot distinguish the tiny defects on the inner wall of the steel pipe with high sensitivity, and if the defects on the inner wall have strict requirements, the defects on the inner wall of the steel pipe must be detected again, which seriously affects the flaw detection efficiency.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a convenient detection mechanism, the defects of the outer wall of the stainless steel pipe are detected by adopting a through eddy current probe, and the defects of the inner wall of the stainless steel pipe are detected by adopting an inner through eddy current probe. During detection, the stainless steel pipe is static and does not move, the inner wall and the outer wall eddy current probes are driven by the air cylinder to move simultaneously, simultaneous flaw detection of the inner wall and the outer wall of the stainless steel pipe is achieved, flaw detection efficiency is greatly improved, and detection accuracy of defects of the inner wall and the outer wall of the stainless steel pipe is strictly guaranteed.
The purpose of the invention can be realized by the following technical scheme:
the invention discloses a vortex detection device capable of simultaneously detecting defects of inner and outer walls of a stainless steel short pipe, which comprises a flaw detection platform, a propulsion cylinder, an outer support sleeve, a spring telescopic mechanism, a support, a V-shaped groove support, a baffle and a blanking support, wherein the vortex detection device specifically comprises:
the outer supporting sleeve is arranged on the flaw detection platform, a supporting rod is axially arranged in the outer supporting sleeve, one end of the supporting rod is connected with a piston rod of the propulsion cylinder, an inner inserting probe is arranged at the end part of the other end of the supporting rod, a penetrating probe is arranged at one end of the outer supporting sleeve corresponding to the inner inserting probe, and the penetrating probe penetrates through the supporting rod in a sleeved mode; a gap through which a steel pipe to be tested can pass is arranged between the interpolation probe and the passing probe;
the spring telescopic mechanism is sleeved at one end of the support rod close to the propulsion cylinder;
the bracket is arranged on one side of the flaw detection platform;
the V-shaped groove support is arranged on the support, can vertically lift and move, and is provided with a steel pipe to be tested in advance;
the baffle is arranged on the bracket and can be abutted against one end of the steel pipe to be tested;
the blanking support is arranged on the support and can move vertically.
Further, when the piston rod of the propulsion cylinder moves towards the direction of the baffle, the baffle abuts against one end of the steel pipe to be tested, so that the steel pipe to be tested enters the outer support sleeve from a gap between the inner insertion type probe and the penetrating type probe.
Further, when the piston rod of the propulsion cylinder displaces towards the direction of the baffle plate and reaches a preset maximum stroke, the baffle plate abuts against one end of the steel pipe to be tested, the steel pipe to be tested abuts against the spring telescopic mechanism, and the spring telescopic mechanism reaches an elastic limit.
Furtherly, when the piston rod that impels the cylinder was to keeping away from the displacement of baffle direction, the baffle offseted with the one end of the steel pipe that awaits measuring, and the steel pipe that awaits measuring offsets with spring telescopic machanism, and spring telescopic machanism replies the natural state gradually, makes the steel pipe that awaits measuring shift out in by outer support sleeve simultaneously.
Further, the interpolation probe detects when the interpolation probe is positioned in the inner wall of the steel pipe to be tested and performs relative displacement.
Further, the through probe detects when the steel pipe to be tested passes through the through probe.
Furthermore, a blanking cylinder and a support cylinder are arranged on the support;
the bracket air cylinder is connected with the V-shaped groove bracket and drives the V-shaped groove bracket to vertically displace;
the blanking cylinder is connected with the blanking support to drive the blanking support to vertically displace.
Furthermore, the top of the blanking cylinder is provided with a guide slope. And rolling the tested steel pipe into the collecting frame from the slope during blanking.
Furthermore, the flaw detection platform is provided with a plurality of rollers which are arranged in rows, the outer support sleeve is arranged on the rollers, and the outer support sleeve can slide on the rollers under the pushing of the propulsion cylinder.
Furthermore, a position sensor is arranged on the support and used for detecting the position information of the steel pipe to be tested.
The cushion block is fixed on the flaw detection platform through a bolt, the propulsion cylinder is locked on the cushion block through the bolt connection, the supporting rod is connected with a piston rod of the propulsion cylinder through a clamping groove and the bolt, the spring telescopic mechanism is fixed at the joint of the piston rod of the propulsion cylinder and the supporting rod, so that part of the spring is surrounded on the periphery of the supporting rod, and the stop block is fixed at the tail end of the spring.
The outer supporting sleeve is connected with the tail end of a piston rod of the propulsion cylinder through a bolt, so that the outer supporting sleeve can move forwards and backwards along with the piston rod, the bearing seat is fixed on a flaw detection platform through a bolt, the deep groove ball bearing is fixed in the clamping groove through interference fit and limited through a shaft shoulder of the rotating shaft, the rotating shaft and an inner ring of the deep groove ball bearing enable the rotating shaft to rotate in the bearing through interference fit, the roller is in transition fit with the rotating shaft and locked by a key, bearing check rings are arranged at two ends of the rotating shaft to limit the roller, the motion stability of the roller is guaranteed, the outer supporting sleeve can slide on the roller, the mounting sleeve and the outer supporting sleeve are locked through a bolt, the linear bearing is locked in the inner ring of the mounting sleeve, the bearing end faces the inside of the sleeve, so that a steel pipe can slide inwards, the other side of the mounting sleeve is connected with the penetration type probe through a bolt, the penetration type probe can detect whether the outer wall of the steel pipe is damaged at the other side of the supporting rod and locked and connected with the inner insertion type probe, and can detect whether the steel pipe is damaged or not.
On the detection matching support mechanism, a mounting back plate is connected with a support through a bolt, a guide rail is locked on the mounting back plate, a movable sliding block can freely slide up and down on the guide rail through a sliding bearing, a support cylinder and the movable sliding block are locked through a bolt and a nut, and the support cylinder is fixed on a mounting bottom plate through a bolt so that the movable sliding block can move up and down along with a piston rod of the support cylinder; the V-shaped groove bracket is fixedly connected with the movable sliding block through a bolt and has a supporting effect on the steel pipe; the moving platform is connected with the other two moving sliding blocks through bolts, is locked with the support cylinder through bolts and nuts and moves along with the moving sliding blocks moving up and down, the blanking support is locked with the moving platform through bolts, and the baffle is connected with the support in a locking mode through bolts.
Compared with the prior art, the invention has the following advantages:
1) The eddy current detection device can simultaneously detect the defects of the inner wall and the outer wall of the stainless steel pipe, can detect the inner wall and the outer wall of the stainless steel pipe simultaneously more conveniently, does not need to additionally open a brand new detection device, and is time-saving, labor-saving, flexible and reliable.
2) The eddy current detection device ensures the continuous stability of the eddy current point type probe and the through type probe in the detection process, avoids the negative influence of the lift-off effect on the detection precision in the detection process, and finally ensures the reliability of the detection result.
3) The two V-groove supports in the detection matching support mechanism are matched with the detection mechanism to be pushed to sequentially descend or ascend, so that the whole detection process is ensured to be automatically carried out, and the labor is saved.
4) The eddy current testing device can be suitable for detecting the micro defects of stainless steel pipes with different pipe diameters, and the probe can be adjusted quickly and conveniently when different steel pipes are replaced for detection.
Drawings
FIG. 1 is an overall configuration view of an eddy current testing apparatus according to the present invention;
FIG. 2 is an installation view of an eddy current probe according to the present invention;
FIG. 3 is a diagram of a detection coordination support mechanism according to the present invention;
in the figure: the device comprises a flaw detection platform 1, a host computer 2, a display screen 3, a propulsion cylinder 4, a bearing seat 5, a cushion block 6, an outer support sleeve 7, a roller 8, a rotating shaft 9, a support 10, an installation bottom plate 11, an installation back plate 12, a blanking cylinder 13, a support cylinder 14, a baffle 15, a guide rail 16, a movable slider 17, a movable platform 18, a blanking support 19, a groove support 20V, an interpolation type probe 21, a penetration type probe 22, an installation sleeve 23, a linear bearing 24, a support rod 25 and a spring telescopic mechanism 26.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
The eddy current testing device capable of simultaneously testing the defects of the inner wall and the outer wall of the stainless steel short pipe in the embodiment comprises a flaw detection platform 1, a propulsion cylinder 4, an outer support sleeve 7, a spring telescopic mechanism 26, a support 10, a V-shaped groove support 20, a baffle 15 and a blanking support 19, and is shown in figure 1.
The outer supporting sleeve 7 is arranged on the flaw detection platform 1, a supporting rod 25 is axially arranged in the outer supporting sleeve 7, one end of the supporting rod 25 is connected with a piston rod of the propelling cylinder 4, an inner inserting probe 21 is arranged at the end part of the other end of the supporting rod 25, referring to fig. 2, a penetrating probe 22 is arranged at one end of the outer supporting sleeve 7 corresponding to the inner inserting probe 21, and the penetrating probe 22 penetrates through the supporting rod 25; a gap through which a steel pipe to be tested can pass is arranged between the inner inserting type probe 21 and the passing type probe 22; the spring expansion mechanism 26 is sleeved on one end of the support rod 25 close to the propulsion cylinder 4, see fig. 2.
The bracket 10 is arranged on one side of the flaw detection platform 1; the V-groove bracket 20 is arranged on the bracket 10 and can perform vertical lifting displacement, and a steel pipe to be tested is preset on the V-groove bracket, which is shown in figures 1 and 3; the baffle 15 is arranged on the bracket 10 and can be abutted against one end of the steel pipe to be tested; the blanking bracket 19 is arranged on the bracket 10 and can vertically move up and down. The flaw detection platform 1 is provided with a plurality of rollers 8 arranged in rows, the outer support sleeve 7 is arranged on the rollers 8, and the outer support sleeve 7 can slide on the rollers 8 under the pushing of the propulsion cylinder 4.
When the piston rod of the propulsion cylinder 4 moves towards the baffle 15, the baffle 15 is abutted against one end of the steel pipe to be tested, so that the steel pipe to be tested enters the outer support sleeve 7 from the gap between the inner inserting probe 21 and the penetrating probe 22. When the piston rod of the propulsion cylinder 4 displaces towards the baffle 15 and reaches a preset maximum stroke, the baffle 15 abuts against one end of the steel pipe to be tested, the steel pipe to be tested abuts against the spring telescopic mechanism 26, and the spring telescopic mechanism 26 is enabled to reach an elastic limit. When the piston rod of the propulsion cylinder 4 moves away from the baffle 15, the baffle 15 abuts against one end of the steel pipe to be tested, the steel pipe to be tested abuts against the spring telescopic mechanism 26, the spring telescopic mechanism 26 gradually returns to a natural state, and meanwhile, the steel pipe to be tested is moved out of the outer support sleeve 7.
The interpolation probe 21 detects when it is positioned in the inner wall of the steel pipe to be tested and makes a relative displacement. The pass-through probe 22 detects when a steel pipe to be tested passes therethrough.
A blanking cylinder 13 and a support cylinder 14 are arranged on the support 10; the bracket cylinder 14 is connected with the V-groove bracket 20 and drives the V-groove bracket 20 to vertically displace; the blanking cylinder 13 is connected with the blanking bracket 19 and drives the blanking bracket 19 to vertically displace. The top of the blanking cylinder 13 is provided with a guide slope. And rolling the tested steel pipe into the collecting frame from the slope during blanking. The support 10 is provided with a position sensor, and the position sensor is used for detecting the position information of the steel pipe to be tested.
Detecting mating bracket mechanism portion
The mounting back plate 12 and the mounting bottom plate 11 are fixed on the support 10, the three support cylinders 14 are mounted on the mounting bottom plate 11, the four guide rails 16 are fixed on the mounting back plate 12, the four moving sliders 17 are respectively sleeved on the guide rails 16 so that the guide rails 16 can move up and down, the guide rails 16 play a limiting and guiding role, one end of the V-shaped groove support 20 is connected with the moving sliders 17 so that the V-shaped groove support can move along with the moving sliders 17 and support a steel pipe, and the bottom of the V-shaped groove support is respectively connected with the two support cylinders 14 so that the V-shaped groove support can move up and down; the moving platform 18 is connected with the other two moving sliding blocks 17, and the through hole in the middle of the moving platform is fixed with the support cylinder 14, so that the steel pipes can be detected one by one when moving from the feeding frame in sequence and then enter the discharging frame in sequence.
Operation of probe propulsion mechanism
1. Detection process
The propulsion cylinder 4 is fixed on the flaw detection platform 1 through a cushion block 6, the propulsion cylinder 4 pushes the outer support sleeve 7 to move forward together with the support rod 25, the penetration type probe 22 and the inner insertion type probe 21 move along with the penetration type probe, the outer support sleeve 7 can roll on the roller 8, the roller 8 plays a role in guiding and supporting, the roller 8 is provided with a bearing seat 5, a rotating shaft 9, a bearing and the like which are matched, when the outer support sleeve 7 moves forward to the support 10 and touches a steel pipe, a position sensor is triggered, the first V groove support 20 close to the left side of the probe descends along with the support cylinder 14, the propulsion mechanism continues to move forward, the second V groove support 20 on the right side descends along with the support cylinder 14 after a certain time delay, the steel pipe can enter the outer support sleeve 7 through the gap between the penetration type probe 22 and the inner insertion type probe 21, the linear bearing 24 plays a role in supporting and guiding, when the left end of the steel pipe contacts the spring telescopic mechanism 26, the spring can be compressed, the spring telescopic mechanism 26 can be compressed leftwards until the structure reaches a limit position, the insertion probe 21 can enter a through hole in the middle of the baffle 15, the penetration probe 22 is pushed rightwards to the rightmost end to stop under the condition that the steel pipe is limited by the baffle 15, the detection of the inner wall and the outer wall of the whole steel pipe is finished, signals are transmitted to a processing system in the computer host 2, and the processed signals are displayed on an interactive interface on the display screen 3.
2. Recovery blanking process
After detection is finished, the air cylinder 4 is pushed to left to drive the probe to move, the steel pipe is kept still at the original position according to the requirement by the elastic force generated by the spring telescopic mechanism 26, when the steel pipe passes through the V-shaped groove support 20 on the right side, the position sensor switch is triggered, the support air cylinder 14 drives the V-shaped groove support 20 to rise along with the elastic force, the steel pipe is supported, when the steel pipe passes through the first V-shaped groove support 20 on the left side, the support air cylinder 14 drives the V-shaped groove support 20 to rise, the steel pipe is supported, the steel pipe slides out in the linear bearing 24, the detection mechanism resets, the blanking support 19 driven by the support air cylinder 14 rises to jack up the steel pipe and slides to the blanking frame beside along the inclined surface of the blanking support 19, and detection is finished.
The embodiments described above are intended to facilitate a person of ordinary skill in the art in understanding and using the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The utility model provides a can detect vortex detection device of stainless steel nozzle stub inside and outside wall defect simultaneously which characterized in that includes:
a flaw detection platform (1);
a propulsion cylinder (4);
the flaw detection device comprises an outer supporting sleeve (7) arranged on the flaw detection platform (1), a supporting rod (25) is axially arranged in the outer supporting sleeve (7), one end of the supporting rod (25) is connected with a piston rod of a propelling cylinder (4), an inner inserting type probe (21) is arranged at the end part of the other end of the supporting rod, a penetrating type probe (22) is arranged at one end of the outer supporting sleeve (7) corresponding to the inner inserting type probe (21), and the penetrating type probe (22) penetrates through the supporting rod (25); a gap through which a steel pipe to be tested can pass is arranged between the interpolation probe (21) and the passing probe (22);
the spring telescopic mechanism (26) is sleeved at one end of the support rod (25) close to the propulsion cylinder (4);
the bracket (10) is arranged on one side of the flaw detection platform (1);
the V-shaped groove support (20) is arranged on the support (10), can vertically lift and move, and is provided with a steel pipe to be tested;
the baffle (15) is arranged on the bracket (10) and can be abutted against one end of the steel pipe to be tested;
and the blanking support (19) is arranged on the support (10) and can vertically lift and move.
2. The eddy current inspection device capable of simultaneously inspecting the defects on the inner and outer walls of the stainless steel short pipe according to claim 1 is characterized in that when the piston rod of the propulsion cylinder (4) is displaced towards the baffle (15), the baffle (15) abuts against one end of the steel pipe to be tested, so that the steel pipe to be tested enters the outer support sleeve (7) from the gap between the inner inserting probe (21) and the penetrating probe (22).
3. The eddy current testing device capable of simultaneously testing the defects of the inner wall and the outer wall of the stainless steel short pipe according to claim 1 is characterized in that when the piston rod of the propulsion cylinder (4) displaces towards the baffle (15) to reach a preset maximum stroke, the baffle (15) abuts against one end of the steel pipe to be tested, the steel pipe to be tested abuts against the spring telescoping mechanism (26), and the spring telescoping mechanism (26) is enabled to reach an elastic limit.
4. The eddy current testing device capable of simultaneously testing the defects of the inner wall and the outer wall of the stainless steel short pipe according to claim 1, characterized in that when the piston rod of the propulsion cylinder (4) moves away from the baffle (15), the baffle (15) abuts against one end of the steel pipe to be tested, the steel pipe to be tested abuts against the spring telescoping mechanism (26), the spring telescoping mechanism (26) gradually returns to a natural state, and meanwhile, the steel pipe to be tested is moved out of the outer support sleeve (7).
5. An eddy current testing apparatus capable of simultaneously testing the inside and outside wall defects of a stainless steel pipe spool as set forth in claim 1 wherein said internal probe (21) is tested while it is in relative displacement in the inside wall of the steel pipe to be tested.
6. The eddy current testing apparatus capable of simultaneously testing the defects of the inner and outer walls of the stainless steel short pipe according to claim 1, wherein the through probe (22) is used for testing when the steel pipe to be tested passes through the through probe.
7. The eddy current testing device capable of simultaneously testing the defects of the inner wall and the outer wall of the stainless steel short pipe according to claim 1 is characterized in that a blanking cylinder (13) and a bracket cylinder (14) are arranged on the bracket (10);
the bracket air cylinder (14) is connected with the V-groove bracket (20) and drives the V-groove bracket (20) to vertically displace;
the blanking cylinder (13) is connected with the blanking support (19) and drives the blanking support (19) to vertically displace.
8. The eddy current testing device capable of simultaneously testing the defects of the inner wall and the outer wall of the stainless steel short pipe according to claim 7 is characterized in that a guide slope is arranged at the top of the blanking cylinder (13).
9. The eddy current inspection device capable of simultaneously detecting the defects of the inner wall and the outer wall of the stainless steel short pipe according to claim 1, characterized in that a plurality of rollers (8) arranged in a row are arranged on the flaw detection platform (1), the outer support sleeve (7) is arranged on the rollers (8), and the outer support sleeve (7) can slide on the rollers (8) under the pushing of the pushing cylinder (4).
10. The eddy current inspection device capable of simultaneously detecting the defects of the inner wall and the outer wall of the stainless steel short pipe according to claim 1, characterized in that the bracket (10) is provided with a position sensor, and the position sensor is used for detecting the position information of the steel pipe to be tested.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911087859.XA CN111024810B (en) | 2019-11-08 | 2019-11-08 | Eddy current detection device capable of simultaneously detecting defects of inner wall and outer wall of stainless steel short pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911087859.XA CN111024810B (en) | 2019-11-08 | 2019-11-08 | Eddy current detection device capable of simultaneously detecting defects of inner wall and outer wall of stainless steel short pipe |
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| CN111024810B true CN111024810B (en) | 2022-10-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896613A (en) * | 2020-07-29 | 2020-11-06 | 上海应用技术大学 | Stainless steel flat welded pipe welding seam defect eddy current on-line measuring device |
| CN111983176B (en) * | 2020-08-26 | 2022-09-30 | 浙江双森金属科技股份有限公司 | Stainless steel pipe defect detection device |
| CN113118045B (en) * | 2021-04-01 | 2022-12-02 | 上海应用技术大学 | Short pipe detection device |
| CN113970593A (en) * | 2021-09-16 | 2022-01-25 | 南京晨光集团有限责任公司 | Inside and outside wear combined type vortex automatic check out test set |
| DE102022103820A1 (en) * | 2022-02-17 | 2023-08-17 | Sandvik Materials Technology Deutschland Gmbh | Apparatus and method for inspecting an inner wall surface of a pipe |
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