CN116068061B - Superconducting magnet inner joint girth weld detection reference block - Google Patents
Superconducting magnet inner joint girth weld detection reference block Download PDFInfo
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- CN116068061B CN116068061B CN202310356041.3A CN202310356041A CN116068061B CN 116068061 B CN116068061 B CN 116068061B CN 202310356041 A CN202310356041 A CN 202310356041A CN 116068061 B CN116068061 B CN 116068061B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
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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
- Y02E30/10—Nuclear fusion reactors
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The invention relates to the field of superconducting magnet tests, and discloses a superconducting magnet inner joint girth joint detection reference block which comprises a first test block and a second test block, wherein the first test block and the second test block can be spliced to form a superconducting magnet inner joint shell with a cross section of which the shape is an outer square and an inner round, a first notch is arranged on the first test block, a second notch is arranged on the second test block, the first notch is in an arc-shaped wire slot shape, and the second notch is in a long transverse hole shape. The beneficial effects of the invention are as follows: the ultrasonic phased array scanning device has a simple structure, can be used for calibrating ultrasonic scanning sensitivity, determining the scanning range of the special-shaped girth welds of the outer square and the inner circle, adjusting the scanning speed of the ultrasonic phased array and judging the size of the defects by arranging different welding defects on different test blocks, and achieves a better inspection effect.
Description
Technical Field
The invention relates to the field of superconducting magnet tests, in particular to a superconducting magnet internal joint girth weld detection reference block.
Background
Tokamak is a toroidal container that utilizes magnetic confinement to achieve controlled nuclear fusion. When the power is on, a huge spiral magnetic field is generated in the tokamak, and plasma in the tokamak is heated to extremely high temperature so as to achieve the purpose of nuclear fusion. The core component is a superconducting magnet which generates a magnetic field, and the length requirement of a single conductor is often as long as thousands of meters. Superconducting magnet systems often consist of tens of sub-components, and are affected by cable threading force, conductor manufacturing line length, etc., and the manufacturing length of a single cic conductor often does not exceed 1000m, thus requiring superconducting joints to connect the components and conductors. While the joints that connect the sub-coils together and are wound inside the coils are called internal joints.
The manufacture of internal joints is the first time in China. The internal joint is subjected to ultralow-temperature high-magnetic-field cyclic stress in the magnet, so that the internal joint is compact in structure, the section size of the internal joint cannot be larger than that of a conductor after the internal joint is manufactured, and the welding seam is in a full-welding structure. Because the armor of CICC conductor and the box body of internal joint are the stainless steel armor structure of outside square and inside circle, its internal joint girth joint is the special-shaped structure of outside square and inside circle equally, does not have the reference block to this girth joint detection yet in the prior art.
Disclosure of Invention
The purpose of the application is to provide a superconducting magnet inner joint girth weld detection reference block to reach the effect of quick accurate demarcation.
The purpose of the application is realized through the following technical scheme:
a superconducting magnet inner joint girth weld inspection reference block comprising:
the first test block and the second test block can be spliced to form a superconducting magnet inner joint shell with the cross section shape of an outside square and an inside round;
the first test block comprises a first wire outlet head and a first cover body, a first boss is arranged at one end of the first wire outlet head, a first groove is arranged at one end of the first cover body, the first boss is connected with the first groove in a welding mode, a first girth joint is formed between the first wire outlet head and the first cover body, a first notch is formed in the inner side of the first girth joint, the first notch is in an arc-shaped wire slot shape, and the first notch extends inwards to penetrate through the first boss;
the second test block comprises a second wire outlet head and a second cover body, a second boss is arranged at one end of the second wire outlet head, a second groove is formed at one end of the second cover body, the second boss is connected with the second groove in a welded mode, a second girth joint is formed between the second wire outlet head and the second cover body, a second notch extending along a first direction is formed in a splicing face of the second girth joint, the first direction is parallel to the extending direction of the second girth joint, and the second notch is in a long transverse hole shape.
In some embodiments of the present application, a third notch extending along the first direction is formed on the splicing surface of the first girth weld, the third notch is located at the middle position of the first girth weld in the axial direction, and the third notch is in a long transverse hole shape.
In some embodiments of the present application, a fourth notch extending along the first direction is formed on the splicing surface of the first girth weld, the fourth notch is located at the combining position of the first boss, the first groove and the first girth weld, and the fourth notch is in a long transverse hole shape.
In some embodiments of the present application, a fifth notch extending along a second direction is formed on an end face of the first girth weld, the second direction is perpendicular to the first direction, the fifth notch is not coincident with the inner arc in the first direction, and the fifth notch is in a long transverse hole shape.
In some embodiments of the present application, a sixth notch extending along the second direction is formed on the end face of the first girth weld, the sixth notch coincides with the inner arc in the first direction, and the sixth notch is in a shape of a long transverse hole.
In some embodiments of the present application, the second notch is disposed at a connection position of the second outlet end and the second girth weld along the first direction.
In some embodiments of the present application, the second notch is disposed at a connection position of the second cover body and the second girth weld along the first direction.
In some embodiments of the present application, the depth of the first notch is 2.5mm to 3mm, and the width of the first notch is 0.1mm to 0.3mm.
In some embodiments of the present application, the diameters of the second notch, the third notch, the fourth notch, the fifth notch and the sixth notch are all 0.8 mm-1.2 mm.
The utility model provides a superconductive magnet internal joint girth joint detects reference block, first test block and second test block are cut apart by superconductive magnet internal joint shell and form, thereby can simulate actual scene, and can set up different welding defects at two part structure, in order to reach different demarcation requirements, first breach of arc wire casing shape has been seted up to first girth, first breach runs through first boss simultaneously, first breach exposes has been guaranteed, make detecting instrument can detect the defect of the interior circular portion of first girth joint smoothly, a detectability for verifying the detection technology, and the second girth joint has been seted up from the second breach that the relative terminal surface extends of concatenation face orientation, a defect detectability for verify outside part, two part test blocks cooperation use, moreover, the steam generator is simple in structure, can be used to mark the ultrasonic phased array scanning sensitivity, confirm outside interior circular special-shaped girth scanning scope, the adjustment ultrasonic phased array scanning speed, judge defect size, reach better inspection effect.
Drawings
FIG. 1 is a schematic view of the overall structure of a first block of the present application;
fig. 2 is an enlarged view of a portion a in fig. 1;
FIG. 3 is a front view of a first block of the present application;
FIG. 4 is a cross-sectional view of section B-B of FIG. 3;
FIG. 5 is a cross-sectional view of section C-C of FIG. 3;
FIG. 6 is a bottom view of the first block of the present application;
FIG. 7 is a cross-sectional view of section D-D of FIG. 6;
FIG. 8 is a rear view of a first block of the present application;
FIG. 9 is a schematic diagram of the overall structure of a second block of the present application;
fig. 10 is an enlarged view of the portion E in fig. 9;
FIG. 11 is a front view of a second block of the present application;
FIG. 12 is a cross-sectional view of section F-F of FIG. 11;
fig. 13 is a cross-sectional view of section G-G of fig. 11.
In the figure, 1, a first test block; 11. a first wire outlet head; 12. a first cover; 13. a first boss; 14. a first groove; 2. a second test block; 21. a second wire outlet head; 22. a second cover; 23. a second boss; 24. a second groove; 3. a first girth weld; 31. a first notch; 32. a third notch; 33. a fourth notch; 34. a fifth notch; 35. a sixth notch; 4. a second girth weld; 41. and a second notch.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present application, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like as used herein indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the inner parts of two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1-13, an embodiment of the present application proposes a superconducting magnet inner joint girth weld detection reference block, which includes a first test block 1 and a second test block 2, where the first test block 1 and the second test block 2 can be spliced to form a superconducting magnet inner joint housing with a cross section shape of an outside square and an inside round;
the first test block 1 comprises a first wire outlet head 11 and a first cover body 12, a first boss 13 is arranged at one end of the first wire outlet head 11, a first groove 14 is arranged at one end of the first cover body 12, the first boss 13 and the first groove 14 are connected in a welding mode, so that a first girth joint 3 is formed between the first wire outlet head 11 and the first cover body 12, a first notch 31 is formed in the inner side of the first girth joint 3, the first notch 31 is in an arc-shaped wire slot shape, and the first notch 31 extends inwards to penetrate through the first boss 13;
the second test block 2 comprises a second wire outlet head 21 and a second cover body 22, a second boss 23 is arranged at one end of the second wire outlet head 21, a second groove 24 is arranged at one end of the second cover body 22, the second boss 23 is welded with the second groove 24, a second girth joint 4 is formed between the second wire outlet head 21 and the second cover body 22, a second notch 41 extending along a first direction is formed on a splicing surface of the second girth joint 4, the first direction is parallel to the extending direction of the second girth joint 4, and the second notch 41 is in a long transverse hole shape.
Based on the above technical scheme, the superconductive magnet inner joint girth joint detection reference block of this application, first test block 1 and second test block 2 are cut apart by superconductive magnet inner joint shell and form, thereby can simulate actual scene, and can set up different welding defects on two part structures, in order to reach different demarcation requirements, first breach 31 of arc wire casing shape has been seted up to first girth joint 3, first breach 31 runs through first boss 13 simultaneously, first breach 31 has been guaranteed to expose, make the defect of the interior circle part of first girth joint 3 can be detected smoothly to the detecting instrument, be used for verifying the detectability of detection technology, and second breach 41 of being parallel to the extending direction of second girth joint 4 has been seted up to second girth joint 4, more specifically, second breach 41 extends towards relative terminal surface from the concatenation face, be used for verifying the defect detectability of outside part, two part blocks cooperation use, simple structure can be used to mark the ultrasonic scanning sensitivity, confirm outside interior circle special-shaped weld girth joint sweep scope, adjust the phased array scanning speed, judge the defect size inspection, better reach the effect.
It should be noted that, during ultrasonic detection, the welding seam with the shape of the outer square and the inner circle can be divided into two major parts, namely, the extending part of the outer square part along the first direction and the extending part of the inner circle part along the first direction, and because of the large difference of the structures of the two parts, different defects are required to be set so as to achieve the purpose of verifying calibration of different positions.
When the device is used, firstly, two stainless steel pipes with square outside and round inside are welded in a butt joint mode, a welding groove and a welding process are the same as those of a detection object, and a sample piece after welding is split in a direction perpendicular to a welding line, so that a first test block 1 and a second test block 2 are obtained, and a first notch 31 and a second notch 41 are respectively engraved on the first test block 1 and the second test block 2, so that the effects are achieved. Preferably, the first test block 1 and the second test block 2 have the same size, the stainless steel tube is made of austenitic stainless steel, meanwhile, the cross section size of the stainless steel tube is 64mm by 64mm, and the diameter of an inner hole is phi 43mm.
Further, referring to fig. 1-4, the first notch 31 is preferably a root slot of 0 ° to 15 °, 15 ° to 30 °, 30 ° to 45 °, and three parts of the first notch 31 are arranged at intervals, so that the effect of verifying the detection capability is better and more stable.
In some embodiments of the present application, as shown in fig. 1-3 and fig. 6 and 7, a third notch 32 extending along the first direction is formed on the splicing surface of the first girth weld 3, the third notch 32 is located at a middle position in the axial direction of the first girth weld 3, and the third notch 32 is in a long transverse hole shape. The third notch 32 provided here can be used to determine the sensitivity of the scanning reference in the middle of the outer part of the first girth weld 3. Preferably, the number of the third notches 32 is two, and the third notches are respectively positioned at 1/4 and 3/4 of the height of one side of the splicing surface, so as to achieve clearer and more perfect feedback.
Specifically, as shown in fig. 1-5, the splicing surface of the first girth weld 3 is provided with a fourth notch 33 extending along the first direction, the fourth notch 33 is located at the combining position of the first boss 13, the first groove 14 and the first girth weld 3, and the fourth notch 33 is in a long transverse hole shape. The fourth notch 33 provided here can be used to determine the scanning reference sensitivity of the root position of the portion outside the first girth weld 3. Preferably, the fourth notch 33 is provided in one piece, and is provided at a position where the three portions intersect.
More specifically, as shown in fig. 6 and 7, a fifth notch 34 extending along a second direction is formed on the end surface of the first girth weld 3, the second direction is perpendicular to the first direction, the fifth notch 34 does not overlap with the inner arc in the first direction, and the fifth notch 34 is in a shape of a long transverse hole. Firstly, it should be noted that, in the second direction, the first girth weld 3 has a two-part structure, that is, the outer part extends along the second direction and the inner part extends along the second direction, and because of the large difference between the two parts, different defects need to be set to achieve the purpose of verifying calibration of different positions. The fifth notch 34 provided here can be used to determine the scanning reference sensitivity of the portion of the outer side of the first girth weld 3 extending in the second direction.
More specifically, as shown in fig. 6 and 7, a sixth notch 35 extending along the second direction is formed on the end surface of the first girth weld 3, the sixth notch 35 coincides with the inner arc in the first direction, and the sixth notch 35 is in the shape of a long transverse hole. The sixth notch 35 provided here can be used to determine the scanning reference sensitivity of the portion of the inner circle of the first girth weld 3 extending in the second direction.
In some embodiments of the present application, as shown in fig. 9-11 and fig. 13, the second notch 41 is disposed at a connection position of the second wire outlet head 21 and the second girth weld 4 along the first direction. The placement of the second notch 41 at this location can be used to determine the scan reference sensitivity of the side weld fusion line and vicinity of the second stub 21.
In some embodiments of the present application, as shown in fig. 9-12, the second notch 41 is disposed at a connection position between the second cover 22 and the second girth weld 4 along the first direction. The placement of the second notch 41 in this location may be used to determine the weld-on weld-line and vicinity of the second cover 22 scan reference sensitivity. Preferably, the second notch 41 includes two, one is disposed at a connection position of the second outlet head 21 and the second girth weld 4 along the first direction, and the other is disposed at a connection position of the second cover 22 and the second girth weld 4 along the first direction, so as to achieve the purpose of detecting the reference sensitivity of scanning multiple positions by one test block.
In some embodiments of the present application, as shown in fig. 4, the depth of the first notch 31 is 2.5mm to 3mm, and the width of the first notch 31 is 0.1mm to 0.3mm. Preferably, the first notch 31 is a circular seam groove of 2.8mm by 0.2 mm.
In some embodiments of the present application, as shown in fig. 4, 5, 7, 12, and 13, the diameters of the second notch 41, the third notch 32, the fourth notch 33, the fifth notch 34, and the sixth notch 35 are all 0.8mm to 1.2mm. Preferably, the long transverse hole is a blind hole with the diameter of 1 mm.
To sum up, the superconductive magnet internal joint girth joint detects reference block, first test block 1 and second test block 2 are cut apart by superconductive magnet internal joint shell and form, thereby can simulate actual scene, and can set up different welding defects at two part structure, in order to reach different demarcation requirements, arc wire groove shaped's first breach 31 has been seted up to first girth 3, first breach 31 runs through first boss 13 simultaneously, first breach 31 has been guaranteed to expose, make detecting instrument can detect the defect of first girth 3 interior circle part smoothly, be used for verifying the detectability of detection technology, and second girth 4 has been seted up from the concatenation face towards the second breach 41 of relative terminal surface extension, be used for verifying the defect detectability of outside part, two part test blocks cooperation are used, and a structure is simple, can be used for demarcating the supersound and sweep the sensitivity, confirm outside interior circle dysmorphism girth phased array scanning speed, judge the defect size, reach better inspection effect.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and substitutions will now occur to those skilled in the art without departing from the technical principles of the present application, and these modifications and substitutions should also be considered to be within the scope of the present application.
Claims (9)
1. The utility model provides a superconducting magnet inner joint girth joint detects reference block which characterized in that includes first test block and second test block, first test block with the second test block can splice the superconducting magnet inner joint shell that forms the cross-section shape and be outside square interior circle;
the first test block comprises a first wire outlet head and a first cover body, a first boss is arranged at one end of the first wire outlet head, a first groove is arranged at one end of the first cover body, the first boss is connected with the first groove in a welding mode, a first girth joint is formed between the first wire outlet head and the first cover body, a first notch is formed in the inner side of the first girth joint, the first notch is in an arc-shaped wire slot shape, and the first notch extends inwards to penetrate through the first cover body in the radial direction;
the second test block comprises a second wire outlet head and a second cover body, a second boss is arranged at one end of the second wire outlet head, a second groove is formed at one end of the second cover body, the second boss is connected with the second groove in a welded mode, a second girth joint is formed between the second wire outlet head and the second cover body, a second notch extending along a first direction is formed in a splicing face of the second girth joint, the first direction is parallel to the extending direction of the second girth joint, and the second notch is in a long transverse hole shape.
2. The superconducting magnet inner joint girth joint detection reference block according to claim 1, wherein a third notch extending along the first direction is formed in the joint surface of the first girth joint, the third notch is located at the middle position of the first girth joint in the axial direction, and the third notch is in a long transverse hole shape.
3. The superconducting magnet inner joint girth joint detection reference block according to claim 2, wherein a fourth notch extending along the first direction is formed in the joint surface of the first girth joint, the fourth notch is located at the joint position of the first boss, the first groove and the first girth joint, and the fourth notch is in a long transverse hole shape.
4. The superconducting magnet inner joint girth joint detection reference block according to claim 3, wherein a fifth notch extending along a second direction is formed in an end face of the first girth joint, the second direction is perpendicular to the first direction, the fifth notch is not overlapped with the inner circular arc in the first direction, and the fifth notch is in a long transverse hole shape.
5. The superconducting magnet inner joint girth joint detection reference block of claim 4, wherein a sixth notch extending along the second direction is formed in an end face of the first girth joint, the sixth notch coincides with the inner arc in the first direction, and the sixth notch is in a long transverse hole shape.
6. The superconducting magnet inner joint girth joint detection reference block according to any one of claims 1 to 5, wherein said second notch is provided at a connection position of said second wire outlet end and said second girth joint in said first direction.
7. The superconducting magnet inner joint girth joint detection reference block according to any one of claims 1 to 5, wherein said second notch is provided at a connection position of said second cover body and said second girth joint in said first direction.
8. The superconducting magnet inner joint girth joint detection reference block according to claim 1, wherein the depth of the first notch is 2.5mm to 3mm, and the width of the first notch is 0.1mm to 0.3mm.
9. The superconducting magnet inner joint girth weld detection reference block of claim 5, wherein the diameters of the second notch, the third notch, the fourth notch, the fifth notch and the sixth notch are all 0.8 mm-1.2 mm.
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