CN118848437A - Sounding pipe manufacturing method of marine sounding self-closing valve - Google Patents
Sounding pipe manufacturing method of marine sounding self-closing valve Download PDFInfo
- Publication number
- CN118848437A CN118848437A CN202410958536.8A CN202410958536A CN118848437A CN 118848437 A CN118848437 A CN 118848437A CN 202410958536 A CN202410958536 A CN 202410958536A CN 118848437 A CN118848437 A CN 118848437A
- Authority
- CN
- China
- Prior art keywords
- pipe
- sounding
- closing valve
- threaded joint
- self
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 40
- 230000007547 defect Effects 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000009659 non-destructive testing Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000001066 destructive effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012216 imaging agent Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of marine sounding pipes, and discloses a sounding pipe manufacturing method of a marine sounding self-closing valve, which comprises the following steps: s1: preparing materials, and selecting proper pipes according to specifications and requirements of the marine sounding self-closing valve; s2: pipe cutting uses cutting equipment to cut the tubular product of different models, and cutting length is unified, S3: preparing a groove, namely preparing the groove at one end of the cut pipe by using a beveling machine; according to the invention, through improvement, the depth sounding pipe with threads at the pipe end designed in the drawing is changed into a mode of directly butting a threaded joint with the pipe, so that the manufacturing process is simplified, and the threaded joint is made into a standard part, so that the shape of the pipe designed in the drawing is not influenced. On one hand, the production preparation can be performed in advance, meanwhile, the working procedure operation difficulty is reduced, and the pipe manufacturing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of marine sounding pipes, in particular to a sounding pipe manufacturing method of a marine sounding self-closing valve.
Background
A sounding pipe of a sounding self-closing valve is a device for measuring a liquid level mounted on a ship, and is generally used in combination with an automatic closing valve to prevent liquid from overflowing and fire hazard. In various measuring devices of ships, a sounding pipe of a sounding self-closing valve is a key component, so that the liquid level measuring work is simplified, and the safety is improved through an automatic closing mechanism of the sounding pipe. The configuration, principle, maintenance and other aspects of the sounding pipe are all of vital importance to the safe operation of the ship.
In the process of manufacturing the sounding pipe, for the sounding pipe with the sounding self-closing valve to be installed, pipe end open threads such as G1 1/2 'or G2 1/2' are marked on a pipe system part diagram when the pipe is manufactured. If the conventional practice is required according to the drawing, the corresponding pipe is machined and lathed into threads in the pipe calibrating stage. Because the length and the shape of the pipe are not uniform (the pipe is provided with a straight pipe bent pipe), the inconvenience is brought to workshop construction and thread processing. Therefore, the sounding pipe manufacturing method of the marine sounding self-closing valve is provided.
Disclosure of Invention
The invention aims to provide a sounding pipe manufacturing method of a sounding self-closing valve for a ship, so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a sounding pipe manufacturing method of a sounding self-closing valve for a ship comprises the following steps:
s1: preparing materials, and selecting proper pipes according to specifications and requirements of the marine sounding self-closing valve;
S2: cutting pipes, namely cutting the pipes of different types by using cutting equipment, wherein the cutting lengths are uniform;
S3: preparing a groove, namely preparing the groove at one end of the cut pipe by using a beveling machine;
S4: machining a threaded joint, machining adaptive threads on the outer wall of the other end of the cut pipe according to the specification of the sounding self-closing valve, and manufacturing various threaded joints with different diameters and uniform lengths;
s5: modifying a blanking list, adjusting blanking length of straight pipes needing to be threaded in the blanking list in a drawing decomposition stage, subtracting the length of a threaded joint to compensate the length of the threaded joint, and noting increased groove information;
S6: adjusting the size of the bent pipe, and for the bent pipe needing to be threaded, besides modifying the blanking length, adjusting the feeding size of the bent pipe on a drawing, so as to ensure that the whole size of the bent pipe is still accurate after the threaded joint is installed;
s7: welding a threaded joint, namely butt welding a straight pipe or an elbow pipe with a prefabricated threaded joint;
s8: detecting a welding line, namely after the marine sounding pipe is butt welded with a prefabricated threaded joint, detecting the welding line to ensure the welding reliability;
S9: and detecting the sounding pipe, namely detecting the sounding pipe to ensure that the quality and the function of the sounding pipe meet the requirements of a ship system.
As a further explanation of the invention, in S1, after the pipe is selected, preliminary polishing treatment is carried out on the pipe, burrs, rust, greasy dirt and other impurities on the surface of the pipe are removed, and the smoothness and flatness of the surface of the pipe are ensured, so that the subsequent processing and connection are facilitated.
As a further illustration of the invention, in S2, the uniform cut length of the tubing is 50mm.
As a further explanation of the present invention, in the preparation of the S3 groove, a groove is formed in one end of the threaded joint, and a groove is also formed in the connecting end of the sounding pipe and the threaded joint.
As a further explanation of the invention, the bevel is a V-shaped bevel, and the bevel angle is 45-60 degrees.
As a further explanation of the present invention, in S4-processed threaded joint, after the thread processing is completed, the thread is subjected to deburring and polishing treatment.
As a further explanation of the present invention, in S5 and S6, the straight pipe and the curved pipe of the sounding pipe are blanked according to the modified blanking sheet.
As a further explanation of the present invention, after the blanking of the straight pipe and the bent pipe of the sounding pipe is completed, the welding pretreatment is performed, and the welding surface is cleaned.
As a further explanation of the present invention, the welding surfaces of the straight pipe and the curved pipe of the threaded joint and the sounding pipe are preheated before the threaded joint is welded in S7.
As a further explanation of the present invention, in S8, when inspecting a weld, first, an appearance inspection is performed, and a constructor or a quality inspector carefully checks whether the weld has a significant defect such as a crack, a void, a dent or overflow. And simultaneously checking whether the shape and the size of the welding line meet the standard requirements, and then carrying out nondestructive testing.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through improvement, the depth sounding pipe with threads at the pipe end designed in the drawing is changed into a mode of directly butting a threaded joint with the pipe, so that the manufacturing process is simplified, and the threaded joint is made into a standard part, so that the shape of the pipe designed in the drawing is not influenced. On one hand, the production preparation can be performed in advance, meanwhile, the working procedure operation difficulty is reduced, and the pipe manufacturing efficiency is improved.
Drawings
FIG. 1 is a process flow diagram of a sounding pipe manufacturing method of a marine sounding self-closing valve of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1, the present invention provides a technical solution: a sounding pipe manufacturing method of a sounding self-closing valve for a ship comprises the following steps:
S1: preparing materials, and selecting proper pipes according to specifications and requirements of the marine sounding self-closing valve; the choice of suitable materials is the basis for ensuring the quality and function of the sounding pipe. Ensuring that the sounding pipe has sufficient strength, corrosion resistance and durability.
S2: cutting pipes, namely cutting the pipes of different types by using cutting equipment, wherein the cutting lengths are uniform; the pipe with different types is precisely cut by using cutting equipment, the cutting length is ensured to be uniform to be 50mm in the embodiment, preparation is made for subsequent processing of a threaded joint and connection with other parts, pipe sections with uniform length are obtained, subsequent processing and assembly are convenient,
S3: preparing a groove, namely preparing the groove at one end of the cut pipe by using a beveling machine; the groove is beneficial to better flowing of fusion metal during welding, improves welding quality, and ensures strength and sealing performance of a welded joint;
S4: machining a threaded joint, machining adaptive threads on the outer wall of the other end of the cut pipe according to the specification of the sounding self-closing valve, and manufacturing various threaded joints with different diameters and uniform lengths; the connection and the fixation of the sounding pipe and other parts are facilitated, and the reliable connection of the sounding pipe and the parts such as the self-closing valve is realized.
S5: modifying a blanking list, adjusting blanking length of straight pipes needing to be threaded in the blanking list in a drawing decomposition stage, subtracting the length of a threaded joint to compensate the length of the threaded joint, and noting increased groove information; the length and the size of the finally assembled sounding pipe are ensured to meet the design requirements, the production efficiency and the product quality are improved, the length of the pipe can be directly adjusted according to actual conditions in the production process, but the accuracy and the consistency are required to be paid attention to;
S6: adjusting the size of the bent pipe, and for the bent pipe needing to be threaded, besides modifying the blanking length, adjusting the feeding size of the bent pipe on a drawing, so as to ensure that the whole size of the bent pipe is still accurate after the threaded joint is installed; the bent pipe still meets the design requirement after being connected with the threaded joint, and the accuracy and the reliability of the product are improved;
S7: welding a threaded joint, namely butt welding a straight pipe or an elbow pipe with a prefabricated threaded joint; realizing the reliable connection of the sounding pipe and the threaded joint, improving the overall strength and the tightness of the product, smearing special sealant or sealant such as thread sealant at the threaded joint can fill the tiny gaps among threads to form a soft sealing layer, effectively preventing the penetration of liquid, gas or impurities,
S8: detecting a welding line, namely after the marine sounding pipe is butt welded with a prefabricated threaded joint, detecting the welding line to ensure the welding reliability; ensuring that the strength and tightness of the welded joint meet standard requirements, visual inspection or other non-destructive inspection methods may be employed,
S9: and detecting the sounding pipe to ensure that the quality and the function of the sounding pipe meet the requirements of a ship system, and improve the reliability and the service life of the product.
In S1, after the pipe is selected, preliminary polishing treatment is carried out on the pipe, impurities such as burrs, rust, greasy dirt and the like on the surface of the pipe are removed, and the smoothness and flatness of the surface of the pipe are ensured so as to facilitate subsequent processing and connection. And impurities such as burrs, rust, oil stains and the like on the surface of the pipe are removed, and the smoothness and flatness of the surface of the pipe are ensured, so that the subsequent processing and connection are facilitated. The polishing can be performed by using tools such as sand paper, grinding wheels, wire brushes and the like, or the automation treatment can be performed by using a professional pipe polishing machine. The pipe can be cleaned by soaking, washing, wiping and the like by using cleaning media such as cleaning agent, alcohol, water and the like. For the pipe with special requirements, advanced cleaning technologies such as ultrasonic cleaning and the like can be used.
In S2, the uniform cutting length of the pipe is 50mm. The uniform length makes the tubing easier to identify, sort and store, and in an automated or semi-automated production line, the use of standard lengths of tubing can significantly improve production efficiency because the machine can more easily accommodate such dimensions. For projects where multiple pipe sections are to be installed, the use of standard lengths of pipe may reduce installation time and complexity.
And S3, when the groove is prepared, the groove is prepared on one end of the threaded joint, and meanwhile, the groove is also prepared on the connecting end of the sounding pipe and the threaded joint.
The groove is a V-shaped groove, and the angle of the groove is 45-60 degrees. The bevel angle also affects the shape and stability of the welding arc. The change of the groove angle can lead to the up-and-down movement of the arc shape, thereby affecting the distance between the arc and the base metal and the penetration depth of the arc to the root of the groove. According to practical welding experience and test results, the proper bevel angle and the bevel angle reaching the ideal welding seam quality requirement are 45-60 degrees. The bevel angle in this range ensures that the welded joint has sufficient strength and good weld formation.
And S4, in the threaded joint, deburring and polishing the threads after the threads are machined. This step helps to ensure the smoothness of the threaded joint and reduces the damage that may occur during connection.
S5 and S6, blanking is carried out on the straight pipe and the bent pipe of the sounding pipe according to the modified blanking list.
And after the blanking of the straight pipe and the bent pipe of the sounding pipe is finished, performing welding pretreatment, and cleaning the welding surface. And using tools such as sand paper, a wire brush and the like to remove impurities such as greasy dirt, rust and the like on the cutting surface of the sounding pipe and the welding area, and ensuring the cleaning and drying of the welding surface. The sounding pipe is positioned with the threaded joint and clamped in place using a clamp or other tool. Ensuring that no movement or deformation occurs during the welding process.
And S7, preheating the welding surfaces of the threaded joint and the straight pipe and the bent pipe of the sounding pipe before welding the threaded joint. Preheating helps reduce the occurrence of weld stresses and cracks.
In S8, when inspecting the weld, first, appearance inspection is performed, and a constructor or a quality inspector carefully checks whether the weld has obvious defects such as cracks, pores, depressions or overflows. And simultaneously checking whether the shape and the size of the welding line meet the standard requirements, and then carrying out nondestructive testing. Common non-destructive inspection methods include:
Ultrasonic detection (UT): if a flaw such as a crack or an air hole exists, the signal is reflected back and captured by the detector. X-ray detection: x-rays penetrate the weld joint, the absorption degree of the X-rays by materials with different densities is different, and the internal condition of the weld joint can be displayed after imaging. Magnetic particle testing (MT): for the discovery of surface and shallow defects, in particular cracks. It relies on the accumulation of magnetic powder at the defect to indicate the problem location. And (3) penetration detection: suitable for the discovery of surface open defects such as cracks and crevices. The cleaned surface is coated with an infiltrant that penetrates into the defect and then an imaging agent is used to reveal the location and shape of the defect.
For a sounding pipe which needs to ensure certain bearing capacity, pressure test can be carried out to test the tightness and strength of the welding line. This involves pressurizing the system to a design pressure or higher and holding for a period of time to see if there is a sign of pressure drop or leakage. For situations where leakage is a concern, a leakage test may be used. This may involve detecting the leak by using a foaming agent, sniffing agent or placing the entire system in water, and observing whether bubbles are generated. Dimensional measurement and angle inspection: the welded components are inspected for size and shape using gauges and instrumentation to ensure that they meet the requirements of technical drawings and standard specifications. Hardness testing was performed on the weld area to evaluate the effect of heat treatment and welding process on the hardness of the material. In some applications of sounding pipes, it may be desirable to evaluate the corrosion resistance of the weld area, especially for vessels used in harsh environments. If problems are found in the non-destructive inspection, it may be necessary to open the weld for fracture analysis, which is a destructive test method to analyze the nature and cause of the weld defect in detail.
In summary, after the above inspection steps are completed, the construction team can have a comprehensive understanding of the reliability of welding and sealing and ensure that the marine sounding pipe meets the safety and functional requirements.
According to the invention, through improvement, the depth sounding pipe with threads at the pipe end designed in the drawing is changed into a mode of directly butting a threaded joint with the pipe, so that the manufacturing process is simplified, and the threaded joint is made into a standard part, so that the shape of the pipe designed in the drawing is not influenced. On one hand, the production preparation can be performed in advance, meanwhile, the working procedure operation difficulty is reduced, and the pipe manufacturing efficiency is improved.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (10)
1. A sounding pipe manufacturing method of a sounding self-closing valve for a ship is characterized by comprising the following steps: the method comprises the following steps:
s1: preparing materials, and selecting proper pipes according to specifications and requirements of the marine sounding self-closing valve;
S2: cutting pipes, namely cutting the pipes of different types by using cutting equipment, wherein the cutting lengths are uniform;
S3: preparing a groove, namely preparing the groove at one end of the cut pipe by using a beveling machine;
S4: machining a threaded joint, machining adaptive threads on the outer wall of the other end of the cut pipe according to the specification of the sounding self-closing valve, and manufacturing various threaded joints with different diameters and uniform lengths;
s5: modifying a blanking list, adjusting blanking length of straight pipes needing to be threaded in the blanking list in a drawing decomposition stage, subtracting the length of a threaded joint to compensate the length of the threaded joint, and noting increased groove information;
S6: adjusting the size of the bent pipe, and for the bent pipe needing to be threaded, besides modifying the blanking length, adjusting the feeding size of the bent pipe on a drawing, so as to ensure that the whole size of the bent pipe is still accurate after the threaded joint is installed;
s7: welding a threaded joint, namely butt welding a straight pipe or an elbow pipe with a prefabricated threaded joint;
s8: detecting a welding line, namely after the marine sounding pipe is butt welded with a prefabricated threaded joint, detecting the welding line to ensure the welding reliability;
S9: and detecting the sounding pipe, namely detecting the sounding pipe to ensure that the quality and the function of the sounding pipe meet the requirements of a ship system.
2. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 1, wherein: in S1, after the pipe is selected, preliminary polishing treatment is carried out on the pipe, impurities such as burrs, rust, greasy dirt and the like on the surface of the pipe are removed, and the smoothness and flatness of the surface of the pipe are ensured so as to facilitate subsequent processing and connection.
3. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 1, wherein: in S2, the uniform cutting length of the pipe is 50mm.
4. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 1, wherein: and S3, when the groove is prepared, the groove is prepared on one end of the threaded joint, and meanwhile, the groove is also prepared on the connecting end of the sounding pipe and the threaded joint.
5. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 4, wherein: the groove is a V-shaped groove, and the angle of the groove is 45-60 degrees.
6. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 1, wherein: and S4, in the threaded joint, deburring and polishing the threads after the threads are machined.
7. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 1, wherein: s5 and S6, blanking is carried out on the straight pipe and the bent pipe of the sounding pipe according to the modified blanking list.
8. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 7, wherein: and after the blanking of the straight pipe and the bent pipe of the sounding pipe is finished, performing welding pretreatment, and cleaning the welding surface.
9. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 1, wherein: and S7, preheating the welding surfaces of the threaded joint and the straight pipe and the bent pipe of the sounding pipe before welding the threaded joint.
10. The sounding pipe manufacturing method of the marine sounding self-closing valve according to claim 1, wherein: in S8, when inspecting the weld, first, appearance inspection is performed, and a constructor or a quality inspector carefully checks whether the weld has obvious defects such as cracks, pores, depressions or overflows. And simultaneously checking whether the shape and the size of the welding line meet the standard requirements, and then carrying out nondestructive testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410958536.8A CN118848437A (en) | 2024-07-17 | 2024-07-17 | Sounding pipe manufacturing method of marine sounding self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410958536.8A CN118848437A (en) | 2024-07-17 | 2024-07-17 | Sounding pipe manufacturing method of marine sounding self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118848437A true CN118848437A (en) | 2024-10-29 |
Family
ID=93165236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410958536.8A Pending CN118848437A (en) | 2024-07-17 | 2024-07-17 | Sounding pipe manufacturing method of marine sounding self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118848437A (en) |
-
2024
- 2024-07-17 CN CN202410958536.8A patent/CN118848437A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202092997U (en) | Natural defect welding test piece | |
| CN101558297A (en) | Ultrasonic testing method of threaded joint of pipes or tubes | |
| CN109781754B (en) | Safety evaluation method for pipeline girth weld defects | |
| CN102095793B (en) | Quantitative magnetic flux leakage testing method for defect at root part of butt weld of pipeline | |
| CN110441389A (en) | A kind of big fillet ultrasonic test method of high-pressure bottle | |
| CN111638146A (en) | Penetration crack steel pipe blasting test method | |
| CN118848437A (en) | Sounding pipe manufacturing method of marine sounding self-closing valve | |
| KR20130073531A (en) | Integrity testing method for weldingsection of pipe | |
| Edelmann | Application of ultrasonic testing techniques on austenitic welds for fabrication and in-service inspection | |
| Caravaca et al. | Correlation of phased array inspection and fatigue performance of FSW joints | |
| CN211478159U (en) | Multilayer metal bearing interface bonding defect ultrasonic penetration detection equipment | |
| CN111318851B (en) | Repair method for fillet weld of manhole neck joint of pressure vessel in nuclear power plant | |
| CN213121736U (en) | Ultrasonic C scanning tool with rapid detection function | |
| CN114131226B (en) | Manufacturing method of tee joint | |
| Anbazhagan et al. | Design and crack analysis of pressure vessel saddles using finite element method | |
| CN114705754B (en) | Nickel-based alloy 625+F65 composite thick-wall pipe butt welding seam PAUT detection method | |
| CN111337570B (en) | Ultrasonic flaw detection system for nuclear-grade stainless steel outer sleeve and flaw detection method thereof | |
| Thomas | PWSCC of bottom mounted instrument nozzles at South Texas project | |
| Yang et al. | Ultrasonic testing technique for small-calibre piping containing defects | |
| CN116611207A (en) | Stress distribution analysis method for pressure pipeline containing defects | |
| Chang et al. | Experimental study on the simulated defects detection in submerged transmission pipeline | |
| Diez et al. | State-Of-The-Art Of Integrity Inspection And Monitoring In Deepwater Assets | |
| CN116500129A (en) | Ultrasonic flaw detection method for high-temperature pipeline | |
| Shimizu¹ et al. | An Automatic Pipe Corrosion Inspection System | |
| CN115266915A (en) | Surface wave measuring method for wall thickness reduction of limited position of boiler heating surface pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination |