CN111351720B - Device and method for shearing detection of annular fuel assembly guide pipe - Google Patents
Device and method for shearing detection of annular fuel assembly guide pipe Download PDFInfo
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- CN111351720B CN111351720B CN201811567416.6A CN201811567416A CN111351720B CN 111351720 B CN111351720 B CN 111351720B CN 201811567416 A CN201811567416 A CN 201811567416A CN 111351720 B CN111351720 B CN 111351720B
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- guide tube
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a device and a method for a shearing detection device of an annular fuel assembly guide pipe, wherein the device comprises a clamping base, a transverse through groove and a supporting device; the method comprises the following steps: the method comprises the following steps: inserting a welding tongue at one side of a guide pipe welding sample into a transverse through groove of the shearing device, enabling a welding point to face downwards, enabling the other welding tongue to hang freely, and inserting the guide pipe into a guide pipe placing area of a clamping base; step two: supporting the sample guide tube by using a rotary supporting sheet to keep the sample guide tube in a vertical state; step three: and placing the shearing device with the sample mounted on a compression platform of the testing machine, starting a shearing test, and removing the supporting device of the pipe before a pressure plate of the testing machine is contacted with the top end of the guide pipe and the shearing force reaches the maximum value. The side surface of the poking piece supports the tube part of the sample to be in a vertical state at the beginning of the test, so that the normal operation of the test and the accuracy of the result are ensured.
Description
Technical Field
The invention belongs to the technical field of guide pipe shearing detection, and particularly relates to a device and a method for an annular fuel assembly guide pipe shearing detection device.
Background
The shearing test is that the loads act on two side surfaces of the sample, the resultant force is a pair of forces with equal magnitude, opposite directions and very close distance between action lines, and the two parts of the sample are dislocated along a shearing surface parallel to the action line of the resultant force. Fig. 1 is a schematic diagram of a shearing principle of an annular fuel assembly guide pipe, and fig. 2 is a schematic diagram of a welding sample structure of the annular fuel assembly guide pipe.
The maximum stress during the sample compression to failure is called compressive strength. This allows the maximum compression force to be determined from the compression force-deformation curve (or read directly from the load cell of the tester) and the compressive strength to be calculated as follows. The shear test, also known as a compressive shear test, is a test in which a pair of equal and opposite forces are applied between the weld lug and the guide tube until the weld joint breaks away or the weld lug ruptures. The maximum force applied at this time, i.e., the maximum shear force, was recorded.
Disclosure of Invention
The invention aims to: because the shearing sample of the annular fuel assembly guide pipe comprises two welding points, the shape is special and can not be directly clamped in a shearing clamp of an electronic universal testing machine. The invention aims to design and manufacture a shearing detection device of an annular fuel assembly guide pipe. And the clamping of the sample is realized, so that the establishment of the shear test method of the annular fuel assembly guide pipe is realized.
The technical scheme of the invention is as follows: a device for detecting shearing of an annular fuel assembly guide pipe comprises a clamping base, a transverse through groove and a supporting device;
the clamping base is integrally in a hollow cylinder shape, the upper half part of the clamping base is downwards 28-30mm along the diameter direction of the cylinder, a half structure is cut off, and the formed open structure is a welding tongue piece clamping area and is used for ensuring the guide pipe and the welding tongue piece to smoothly pass through; the lower half part is a guide tube placing area for placing a guide tube;
a transverse through groove with the width of 0.6-0.7mm and the depth of 14-15mm is arranged at the top of the welding tongue piece clamping area along the direction of the inner diameter tangent line and is used for clamping and placing the welding tongue piece;
the top of the guide pipe placing area is provided with an M5 threaded hole with the depth of 10-12mm for mounting a supporting device; the supporting device comprises a threaded rod and a rotary supporting piece, the length of the threaded rod is 30-35mm, and the diameter of the threaded rod is phi 2-3mm; the rotary supporting sheet is rectangular, has the length of 13-15mm and the width of 6-8mm, is arranged at the top end of the threaded rod and is used for transversely supporting the guide tube so as to enable the guide tube to be in a vertical state in the detection stage.
Furthermore, the height of the clamping base is 68-72mm, and the outer diameter phi is 38-42mm.
Furthermore, the height of the guide tube placing area is 38-40mm, and the inner diameter is phi 24-25mm.
Furthermore, the height of the welding tongue piece clamping area is 30-32mm, the inner diameter of the bottommost end is phi 21-22mm, the welding tongue piece clamping area is uniformly and excessively tapered in an upward direction at an angle of 6 degrees, and the minimum inner diameter is phi 16-17mm.
Furthermore, the clamping base is made of 1Cr18Ni9Ti stainless steel.
Furthermore, the threaded rod is made of 1Cr18Ni9Ti stainless steel.
Furthermore, the rotary support sheet is made of acrylic.
A method for detecting shearing of a guide tube of an annular fuel assembly comprises the following steps:
the method comprises the following steps: inserting a welding tongue at one side of a guide pipe welding sample into a transverse through groove of the shearing device, enabling a welding point to face downwards, enabling the other welding tongue to hang freely, and inserting the guide pipe into a guide pipe placing area of a clamping base;
step two: supporting the sample guide tube by using a rotary supporting sheet to keep the sample guide tube in a vertical state;
step three: placing the shearing device with the sample mounted on a compression platform of a testing machine, starting a shearing test, and removing a supporting device of the guide pipe before a pressure plate of the testing machine contacts the top end of the guide pipe and the shearing force reaches the maximum value;
step four: and after the experiment is finished, taking out the clamping device, taking out the sample, repeating the operations, and carrying out a shear test on the weld tongue on the other side.
The invention has the following remarkable effects: according to the invention, in the shearing detection project of the annular fuel assembly guide pipe, the following effects are achieved:
1) The effective clamping of the sample is realized, the welding tongue piece is fixed in the slit, and the guide pipe penetrates through the larger opening;
2) The tube part of the sample is in a vertical state at the beginning of the test through the lateral support of the shifting piece, so that the normal operation of the test and the accuracy of the result are ensured.
Drawings
FIG. 1 is a schematic view of a principle of annular fuel assembly guide tube shearing;
FIG. 2 is a schematic structural view of a welded sample of a guide tube of an annular fuel assembly;
FIG. 3 is a front view of an annular fuel assembly guide tube shearing device;
FIG. 4 is a cross-sectional view of an annular fuel assembly guide tube shearing device;
FIG. 5 is an assembly view of the annular fuel assembly guide tube shearing device;
in the figure: 1. the welding device comprises an upper shearing force, a lower shearing force, 3 welding tongue pieces, 4 welding points, 5 guide pipes, 6 clamping bases, 7 guide pipe placing areas, 8 welding tongue piece clamping areas, 9 transverse through grooves, 10 supporting devices, 11 threaded rods, 12 rotating supporting pieces and 13 threaded holes.
Detailed Description
The following describes an annular fuel assembly guide tube shear detection device in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 3-5, the device for detecting the shearing of the guide pipe of the annular fuel assembly comprises a clamping base 6, a transverse through groove 9 and a supporting device 10;
the clamping base 6 is integrally in a hollow cylinder shape, the upper half part of the clamping base is downwards 28-30mm along the diameter direction of the cylinder, a half structure is cut off, and the formed open structure is a welding tongue piece clamping area 8 and is used for ensuring the guide pipe and the welding tongue piece to smoothly pass through; the lower half part is a guide tube placing area 7 for placing a guide tube;
a transverse through groove 9 with the width of 0.6-0.7mm and the depth of 14-15mm is arranged at the top of the welding tongue piece clamping area 8 along the direction of the inner diameter tangent line and is used for clamping and placing the welding tongue piece;
the top of the guide pipe placing area 7 is provided with an M5 threaded hole 13 with the depth of 10-12mm for mounting the supporting device 10; the supporting device 10 comprises a threaded rod 11 and a rotary supporting piece 12, wherein the length of the threaded rod 11 is 30-35mm, and the diameter of the threaded rod is phi 2-3mm; the rotary supporting sheet 12 is rectangular, has the length of 13-15mm and the width of 6-8mm, is arranged at the top end of the threaded rod 11 and is used for transversely supporting the guide tube so as to enable the guide tube to be in a vertical state in the detection stage.
Furthermore, the height of the clamping base 6 is 68-72mm, and the outer diameter phi is 38-42mm.
Furthermore, the height of the guide tube placing area 7 is 38-40mm, and the inner diameter is phi 24-25mm.
Furthermore, the height of the welding tongue piece clamping area 8 is 30-32mm, the inner diameter of the lowest end is phi 21-22mm, the welding tongue piece clamping area is a conical section which is uniformly transited upwards at an angle of 6 degrees, and the minimum inner diameter is phi 16-17mm.
Furthermore, the clamping base 6 is made of 1Cr18Ni9Ti stainless steel.
Furthermore, the threaded rod 11 is made of 1Cr18Ni9Ti stainless steel.
Further, the rotating support sheet 12 is made of acrylic.
A method for detecting shearing of a guide tube of an annular fuel assembly comprises the following steps:
the method comprises the following steps: inserting a weld tongue at one side of a guide pipe welding sample into a transverse through groove of the shearing device, enabling a welding point to face downwards, enabling the other weld tongue to hang freely in the air, and inserting the guide pipe into a guide pipe placing area of the clamping base;
step two: supporting the sample guide tube by using a rotary supporting sheet to keep the sample guide tube in a vertical state;
step three: placing the shearing device with the sample mounted on a compression platform of a testing machine, starting a shearing test, and removing a supporting device of the guide pipe before a pressure plate of the testing machine contacts the top end of the guide pipe and the shearing force reaches the maximum value;
step four: and after the experiment is finished, taking out the clamping device, taking out the sample, repeating the operation, and carrying out a shear test on the welding tongue on the other side.
Claims (8)
1. The utility model provides a device that annular fuel assembly stand pipe cut and detect which characterized in that: comprises a clamping base (6), a transverse through groove (9) and a supporting device (10);
the clamping base (6) is integrally in a hollow cylinder shape, the upper half part of the clamping base is downwards 28-30mm along the diameter direction of the cylinder, a half structure is cut off, and the formed open structure is a welding tongue piece clamping area (8) and is used for ensuring the guide tube and the welding tongue piece to smoothly pass through; the lower half part is a guide tube placing area (7) for placing a guide tube;
a transverse through groove (9) with the width of 0.6-0.7mm and the depth of 14-15mm is arranged at the top of the soldering lug clamping area (8) along the direction of the internal diameter tangent line and is used for clamping and placing the soldering lug;
an M5 threaded hole (13) with the depth of 10-12mm is formed in the top of the guide tube placing area (7) and used for installing a supporting device (10); the supporting device (10) comprises a threaded rod (11) and a rotary supporting piece (12), wherein the length of the threaded rod (11) is 30-35mm, and the diameter of the threaded rod is phi 2-3mm; the rotary supporting sheet (12) is rectangular, has the length of 13-15mm and the width of 6-8mm, is arranged at the top end of the threaded rod (11) and is used for transversely supporting the guide tube so as to enable the guide tube to be in a vertical state in the detection stage.
2. The apparatus for ring fuel assembly guide tube shear testing of claim 1, wherein: the height of the clamping base (6) is 68-72mm, and the outer diameter phi is 38-42mm.
3. The apparatus for ring fuel assembly guide tube shear testing of claim 1, wherein: the height of the guide tube placing area (7) is 38-40mm, and the inner diameter of the guide tube placing area is phi 24-25mm.
4. The apparatus for ring fuel assembly guide tube shear testing of claim 1, wherein: the solder tab clamping area (8) is 30-32mm high, the inner diameter of the lowest end is phi 21-22mm, the upward uniform transition is a conical section at an angle of 6 degrees, and the minimum inner diameter is phi 16-17mm.
5. The apparatus for ring fuel assembly guide tube shear testing of claim 1, wherein: the clamping base (6) is made of 1Cr18Ni9Ti stainless steel.
6. The apparatus for ring fuel assembly guide tube shear testing of claim 1, wherein: the threaded rod (11) is made of 1Cr18Ni9Ti stainless steel.
7. The apparatus for detecting shear in a guide tube of an annular fuel assembly according to claim 1, wherein: the rotary supporting sheet (12) is made of acrylic.
8. A method of ring fuel assembly guide tube shear testing using the apparatus of any one of claims 1 to 7, comprising the steps of:
the method comprises the following steps: inserting a welding tongue at one side of a guide pipe welding sample into a transverse through groove of the shearing device, enabling a welding point to face downwards, enabling the other welding tongue to hang freely, and inserting the guide pipe into a guide pipe placing area of a clamping base;
step two: supporting the sample guide tube by using a rotary supporting sheet to keep the sample guide tube in a vertical state;
step three: placing the shearing device with the sample mounted on a compression platform of a testing machine, starting a shearing test, and removing a supporting device of the guide pipe before a pressure plate of the testing machine contacts the top end of the guide pipe and the shearing force reaches the maximum value;
step four: and after the experiment is finished, taking out the clamping device, taking out the sample, repeating the operation, and carrying out a shear test on the welding tongue on the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567416.6A CN111351720B (en) | 2018-12-20 | 2018-12-20 | Device and method for shearing detection of annular fuel assembly guide pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567416.6A CN111351720B (en) | 2018-12-20 | 2018-12-20 | Device and method for shearing detection of annular fuel assembly guide pipe |
Publications (2)
| Publication Number | Publication Date |
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| CN111351720A CN111351720A (en) | 2020-06-30 |
| CN111351720B true CN111351720B (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811567416.6A Active CN111351720B (en) | 2018-12-20 | 2018-12-20 | Device and method for shearing detection of annular fuel assembly guide pipe |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816344A (en) * | 2020-11-27 | 2021-05-18 | 中核北方核燃料元件有限公司 | Annular fuel assembly framework shearing detection device and method |
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| CN104502205A (en) * | 2014-12-17 | 2015-04-08 | 上海应用技术学院 | Rigid alloy soldered joint shearing property testing device |
| CN106918500A (en) * | 2017-05-02 | 2017-07-04 | 南京钢铁股份有限公司 | A kind of device and its application method for clad steel plate shearing test |
| JP2017173196A (en) * | 2016-03-25 | 2017-09-28 | 三栄商事株式会社 | Welding point strength testing tool |
| CN206906147U (en) * | 2017-05-19 | 2018-01-19 | 江阴市产品质量监督检验所 | Heat insulated shape bar of aluminum alloy shearing test detects fixture |
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2018
- 2018-12-20 CN CN201811567416.6A patent/CN111351720B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| CN101487780A (en) * | 2008-12-26 | 2009-07-22 | 河北理工大学 | Method and apparatus for detecting non-work directional performance of medium plate |
| CN104502205A (en) * | 2014-12-17 | 2015-04-08 | 上海应用技术学院 | Rigid alloy soldered joint shearing property testing device |
| JP2017173196A (en) * | 2016-03-25 | 2017-09-28 | 三栄商事株式会社 | Welding point strength testing tool |
| CN106918500A (en) * | 2017-05-02 | 2017-07-04 | 南京钢铁股份有限公司 | A kind of device and its application method for clad steel plate shearing test |
| CN206906147U (en) * | 2017-05-19 | 2018-01-19 | 江阴市产品质量监督检验所 | Heat insulated shape bar of aluminum alloy shearing test detects fixture |
Non-Patent Citations (1)
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| CN111351720A (en) | 2020-06-30 |
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