Multipurpose reference block

Abstract

The utility model relates to the technical field of nondestructive testing, in particular to a multipurpose reference block. The test block comprises a test block body, and the test block body is provided with a first plane and a second plane which are arranged in parallel at an interval; the first plane is provided with a plurality of structure grooves with different depths, the plurality of structure grooves are circumferentially arranged, the groove depth direction of the structure grooves is perpendicular to the second plane, a detection part is formed between the groove bottom of each structure groove and the second plane, the detection part is provided with an inner hole, and the axial direction of the inner hole is parallel to the second plane. The manufacturing frequency and the taking frequency of the test block can be reduced, and the implementation convenience of a detection item can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of nondestructive testing, and in particular to a multi-purpose comparison test block. Background Art

[0002] The third-generation nuclear power technology Hualong One steel lining weld adopts NB / T20003.2 standard ultrasonic testing. When using the single reflection method for testing, the thickness of the comparison test block should be equal to the thickness of the inspected piece, and the thickness tolerance is ±5mm. For each parent material thickness, a corresponding test block needs to be made separately. Due to the large number of parent material specifications for steel lining welds, the required number of test blocks is large, and the number of test blocks produced is large. For each parent material thickness, a corresponding test block needs to be taken, and the process is relatively cumbersome. Utility Model Content

[0003] The present application provides a multi-purpose comparison test block, which uses a single test block to realize test block scanning under various thickness requirements, reduces the amount of test blocks, reduces the number of times the test blocks are taken, and solves the problem in the prior art that a large amount of test blocks are required and the number of times the test blocks are taken in the third-generation nuclear power technology Hualong One steel lining inspection project.

[0004] This application is implemented through the following technical solutions:

[0005] A multi-purpose comparison test block comprises a test block body, wherein the test block body has a first plane and a second plane arranged in parallel and spaced relation;

[0006] A plurality of structural grooves of different depths are provided on the first plane, and the plurality of structural grooves are arranged in a circle. The groove depth direction of the structural grooves is perpendicular to the second plane, and a detection portion is formed between the groove bottom of the structural groove and the second plane. The detection portion has an inner hole, and the axial direction of the inner hole is parallel to the second plane.

[0007] The multi-purpose comparison test block provided in the present application can form multiple detection parts with different thicknesses by opening multiple structural grooves of different depths on the test block body, and inner holes are provided on the detection parts, so that each detection part can independently perform the function of a comparison test block, so that a single test block can be suitable for defect reference under various parent material thicknesses. Compared with the existing technology, the amount of test blocks required for the entire inspection project can be reduced, the number of test block production times can be reduced, a single test block can provide comparison requirements for various parent material thicknesses, the number of test block access times can be reduced, and the convenience of the overall inspection project can be improved.

[0008] In some optional embodiments, the structural slot includes a first slot body, a second slot body and a third slot body;

[0009] The bottom surface of the first slot body and the second plane form a first detection portion, and the distance between the bottom surface of the first slot body and the second plane is configured to be 1 / 4 of the distance between the first plane and the second plane;

[0010] The bottom surface of the second groove body and the second plane form a second detection portion, and the distance between the bottom surface of the second groove body and the second plane is configured to be 1 / 2 of the distance between the first plane and the second plane;

[0011] The bottom surface of the third slot body and the second plane form a third detection portion, and the distance between the bottom surface of the third slot body and the second plane is configured to be 3 / 4 of the distance between the first plane and the second plane;

[0012] Wherein, a fourth detection portion is formed between the first plane and the second plane.

[0013] In some optional embodiments, the distance between the first plane and the second plane is configured to be 40 mm.

[0014] In some optional embodiments, the diameter of the inner hole on the first detection portion is configured to be 2 mm, the depth is configured to be 40 mm, and the distance between the inner hole and the second plane is configured to be 5 mm.

[0015] In some optional embodiments, the diameter of the inner hole on the second detection part is configured to be 2 mm, the depth is configured to be 40 mm, the number of the inner holes is configured to be two, the distance between one of the inner holes and the second plane is configured to be 5 mm, and the distance between the other inner hole and the second plane is configured to be 10 mm.

[0016] In some optional embodiments, the inner hole diameter on the third detection portion is configured to be 2 mm, the depth is configured to be 40 mm, the number of the inner holes is configured to be two, the distance between one of the inner holes and the second plane is configured to be 5 mm, and the distance between the other inner hole and the second plane is configured to be 15 mm.

[0017] In some optional embodiments, the diameter of the inner hole on the fourth detection part is configured to be 2 mm, the depth is configured to be 40 mm, the number of the inner holes is configured to be two, the distance between one of the inner holes and the second plane is configured to be 10 mm, and the distance between the other inner hole and the second plane is configured to be 20 mm.

[0018] In some optional embodiments, the structural groove penetrates the test block body in a unidirectional direction along a direction parallel to the first plane.

[0019] In some optional embodiments, a plurality of flat-bottom holes are formed on the first plane, the axial directions of the flat-bottom holes are perpendicular to the first plane, and the depths of the plurality of flat-bottom holes are different.

[0020] In some optional embodiments, the surface roughness of the test block body is configured to be no greater than 6.3 μm, and the surface roughness of the inner hole is configured to be no greater than 3.2 μm.

[0021] Compared with the prior art, this application has the following advantages and beneficial effects:

[0022] The multi-purpose comparison test block provided in the present application can form multiple detection parts with different thicknesses by opening multiple structural grooves of different depths on the test block body, and inner holes are provided on the detection parts, so that each detection part can independently perform the function of a comparison test block, so that a single test block can be suitable for defect reference under various parent material thicknesses. Compared with the existing technology, the amount of test blocks required for the entire inspection project can be reduced, the number of test block production times can be reduced, a single test block can provide comparison requirements for various parent material thicknesses, the number of test block access times can be reduced, and the convenience of the overall inspection project can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the embodiments of the present application, constitute a part of the present application, and do not constitute a limitation on the embodiments of the present application. In the drawings:

[0024] Figure 1 A schematic diagram of the structure of a multi-purpose comparison test block provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the bottom-up structure of a multi-purpose comparison test block provided in an embodiment of the present application;

[0026] Figure 3 for Figure 2 Schematic diagram of the test structure in the A direction;

[0027] Figure 4 for Figure 2 Schematic diagram of the test structure in the B direction;

[0028] Figure 5 for Figure 2 Schematic diagram of the test structure in the C direction;

[0029] Figure 6 for Figure 2 Schematic diagram of the test structure in the D direction.

[0030] Marks and corresponding parts names in the attached drawings:

[0031] 1-first detection part, 2-second detection part, 3-third detection part, 4-fourth detection part, 5-inner hole, 6-flat bottom hole. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with examples and drawings. The illustrative implementation scheme of the present application and its description are only used to explain the present application and are not intended to limit the present application.

[0033] See also Figure 1 to Figure 6 The embodiment of the present application provides a multi-purpose comparison test block, including a test block body, the test block body having a first plane and a second plane arranged in parallel and spaced apart, the shape of the test block body may not be limited, that is, the test block body may be of an irregular shape, the first plane and the second plane may be obtained by milling, and of course, for ease of manufacture, the test block body may preferably be set to a rectangular shape, and the upper and lower plate surfaces of the rectangular shape may be used as the first plane and the second plane, respectively.

[0034] A plurality of structural grooves of different depths are provided on the first plane, and the plurality of structural grooves are arranged in a circle. When the test block body is in the shape of a rectangular parallelepiped, the shape of the structural groove can also be a rectangular parallelepiped to make the overall spatial structure arrangement of the test block more reasonable. The groove depth direction of the structural groove is perpendicular to the second plane, and a detection portion is formed between the groove bottom of the structural groove and the second plane. The detection portion has an inner hole 5, and the axial direction of the inner hole 5 is parallel to the second plane. The inner hole 5 can be opened from the side of the test block body.

[0035] The multi-purpose comparison test block provided in the present application can form multiple detection parts with different thicknesses by opening multiple structural grooves with different depths on the test block body, and an inner hole 5 is provided on the detection part, so that each detection part can independently perform the function of a comparison test block, so that a single test block can be suitable for defect reference under various parent material thicknesses. Compared with the existing technology, the amount of test blocks required for the entire inspection project can be reduced, the number of test block production times can be reduced, a single test block can provide comparison requirements for various parent material thicknesses, the number of test block access times can be reduced, and the convenience of the overall inspection project can be improved.

[0036] In some optional embodiments, the structural groove includes a first groove body, a second groove body and a third groove body; the groove bottom surface of the first groove body and the second plane form a first detection part 1, and the distance between the groove bottom surface of the first groove body and the second plane is configured to be 1 / 4 of the distance between the first plane and the second plane; the groove bottom surface of the second groove body and the second plane form a second detection part 2, and the distance between the groove bottom surface of the second groove body and the second plane is configured to be 1 / 2 of the distance between the first plane and the second plane; the groove bottom surface of the third groove body and the second plane form a third detection part 3, and the distance between the groove bottom surface of the third groove body and the second plane is configured to be 3 / 4 of the distance between the first plane and the second plane; wherein a fourth detection part 4 is formed between the first plane and the second plane. That is to say, the number of structural grooves is configured to be at least three. When the shape of the test block body is set to a rectangular parallelepiped, in order to ensure the uniform thickness of the detection part, the bottom surfaces of the first groove body, the second groove body and the third groove bottom are all planes. Preferably, the bottom surface of the groove is set to a rectangle; the first groove body, the second groove body and the third groove body can be connected or isolated from each other. When the first groove body, the second groove body and the third groove body are isolated from each other, the part between the first groove body and the second groove body or between the second groove body and the third groove body or between the first groove body and the third groove body can also be used as a detection part, that is, the fourth detection part 4. The thickness of the fourth detection part 4 is equal to the thickness of the test block body. The range of the fourth detection part 4 can be adaptively divided according to the detection requirements, that is, the area corresponding to the fourth detection part 4 on the second plane can be adaptively designed according to the detection requirements. Of course, in other embodiments, the number of structural grooves can be set to be more or less to form more or less detection parts. Preferably, the spacing between the first plane and the second plane is configured to be 40mm, that is, when the test block body is in the shape of a rectangular parallelepiped, the thickness of the test block body is 40mm.

[0037] In some optional embodiments, the inner hole 5 on the first detection part 1 is configured to have a diameter of 2 mm, a depth of 40 mm, and a distance between the inner hole 5 and the second plane is configured to be 5 mm. When the thickness of the test block body is 40 mm, the thickness of the first detection part 1 is 10 mm, and the second plane is used as the detection surface, DAC curves can be produced at thicknesses of 5 mm, 15 mm (first reflection), and 25 mm (secondary reflection).

[0038] In some optional embodiments, the diameter of the inner hole 5 on the second detection part 2 is configured to be 2 mm, the depth is configured to be 40 mm, the number of the inner holes 5 is configured to be two, the distance between one inner hole 5 and the second plane is configured to be 5 mm, and the distance between the other inner hole 5 and the second plane is configured to be 10 mm. When the thickness of the test block body is 40 mm, the thickness of the second detection part 2 is 20 mm, and the second plane is used as the detection surface, the DAC curve production under the thickness of 5 mm, 10 mm, 15 mm, 25 mm (single reflection), 30 mm (single reflection), and 35 mm (single reflection) can be realized.

[0039] In some optional embodiments, the inner hole 5 on the third detection part 3 is configured to have a diameter of 2 mm and a depth of 40 mm. The number of the inner holes 5 is configured to be two, wherein the distance between one inner hole 5 and the second plane is configured to be 5 mm, and the distance between the other inner hole 5 and the second plane is configured to be 15 mm. When the thickness of the test block body is 40 mm, the thickness of the third detection part 3 is 30 mm, and the second plane is used as the detection surface, the DAC curves can be prepared at thicknesses of 5 mm, 15 mm, 25 mm, 35 mm (single reflection), 45 mm (single reflection), and 55 mm (single reflection).

[0040] In some optional embodiments, the diameter of the inner hole 5 on the fourth detection part 4 is configured to be 2 mm, the depth is configured to be 40 mm, the number of the inner holes 5 is configured to be two, the distance between one inner hole 5 and the second plane is configured to be 10 mm, and the distance between the other inner hole 5 and the second plane is configured to be 20 mm. When the thickness of the test block body is 40 mm, the thickness of the fourth detection part 4 is 40 mm, and the second plane is used as the detection surface, the DAC curve production under the thickness of 10 mm, 20 mm, 30 mm, 50 mm (one reflection), 60 mm (one reflection), and 70 mm (one reflection) can be realized.

[0041] In some optional embodiments, the structural groove runs through the test block body in a single direction along a direction parallel to the first plane. In other words, the structural groove is an open groove body, which can make the area of ​​the detection part relatively large, which is convenient for scanning. For example, for the first groove body, the notch shape of the first groove body is a rectangle, and the overall shape of the test block body is a cuboid. One of the notch edges of the first groove body coincides with the long side of the test block body, and the adjacent notch edge coincides with the wide side of the test block body.

[0042] In some optional embodiments, a plurality of flat-bottom holes 6 are provided on the first plane, the axial direction of the flat-bottom holes 6 is perpendicular to the first plane, and the depths of the plurality of flat-bottom holes 6 are different. The sensitivity adjustment of the detection device can be conveniently achieved through the flat-bottom holes 6 of different depths. Preferably, the number of the flat-bottom holes 6 can be set to six, the six flat-bottom holes 6 are arranged in a matrix, the spacing between two adjacent flat-bottom holes 6 is 60 mm, and the depths of the flat-bottom holes 6 are 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, and 35 mm, respectively.

[0043] In some optional embodiments, the test block body can be set as a 20# steel block, the surface roughness is configured to be no greater than 6.3μm, and the allowable tolerance of the outer dimensions is ±0.05mm; the surface roughness of the inner hole 5 is no greater than 3.2μm, and the surface roughness of the flat-bottom hole 6 is no greater than 3.2μm. The parallelism error between the inner hole 5 and the flat-bottom hole 6 and the surface of the test block body is ±0.03mm, and the aperture and length errors of the inner hole 5 and the flat-bottom hole 6 are ±0.05mm.

[0044] The above specific embodiments illustrate the implementation methods of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation methods. On the contrary, the purpose of introducing the application in conjunction with the implementation methods is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide an in-depth understanding of the present application, the above description contains many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0045] It should be noted that in this specification, similar numbers and letters represent similar items in the above drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of this application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A multi-purpose comparison test block, characterized in that: The test block body comprises a first plane and a second plane which are arranged in parallel and spaced apart; The first plane is provided with a plurality of structural grooves of different depths, the plurality of structural grooves being arranged in a circumference, the groove depth direction of the structural grooves being perpendicular to the second plane, a detection portion being formed between the groove bottom of the structural groove and the second plane, the detection portion having an inner hole (5), the axial direction of the inner hole (5) being parallel to the second plane.

2. The multi-purpose comparison test block according to claim 1, characterized in that: The structural slot includes a first slot body, a second slot body and a third slot body; The bottom surface of the first groove body and the second plane form a first detection portion (1), and the distance between the bottom surface of the first groove body and the second plane is configured to be 1 / 4 of the distance between the first plane and the second plane; The bottom surface of the second groove body and the second plane form a second detection portion (2), and the distance between the bottom surface of the second groove body and the second plane is configured to be 1 / 2 of the distance between the first plane and the second plane; The bottom surface of the third groove body and the second plane form a third detection portion (3), and the distance between the bottom surface of the third groove body and the second plane is configured to be 3 / 4 of the distance between the first plane and the second plane; A fourth detection portion (4) is formed between the first plane and the second plane.

3. The multi-purpose comparison test block according to claim 2, characterized in that: The distance between the first plane and the second plane is configured to be 40 mm.

4. The multi-purpose comparison test block according to claim 2, characterized in that: The inner hole (5) on the first detection part (1) has a diameter of 2 mm and a depth of 40 mm, and a distance between the inner hole (5) and the second plane is 5 mm.

5. The multi-purpose comparison test block according to claim 2, characterized in that: The diameter of the inner hole (5) on the second detection part (2) is configured to be 2 mm, and the depth is configured to be 40 mm. The number of the inner holes (5) is configured to be two, wherein the distance between one of the inner holes (5) and the second plane is configured to be 5 mm, and the distance between the other inner hole (5) and the second plane is configured to be 10 mm.

6. The multi-purpose comparison test block according to claim 2, characterized in that: The diameter of the inner hole (5) on the third detection part (3) is configured to be 2 mm, and the depth is configured to be 40 mm. The number of the inner holes (5) is configured to be two, wherein the distance between one of the inner holes (5) and the second plane is configured to be 5 mm, and the distance between the other inner hole (5) and the second plane is configured to be 15 mm.

7. The multi-purpose comparison test block according to claim 2, characterized in that: The diameter of the inner hole (5) on the fourth detection part (4) is configured to be 2 mm, and the depth is configured to be 40 mm. The number of the inner holes (5) is configured to be two, wherein the distance between one of the inner holes (5) and the second plane is configured to be 10 mm, and the distance between the other inner hole (5) and the second plane is configured to be 20 mm.

8. The multi-purpose comparison test block according to claim 1, characterized in that: The structural groove passes through the test block body in a single direction along a direction parallel to the first plane.

9. The multi-purpose comparison test block according to claim 1, characterized in that: A plurality of flat-bottom holes (6) are provided on the first plane, the axial direction of the flat-bottom holes (6) is perpendicular to the first plane, and the depths of the plurality of flat-bottom holes (6) are different.

10. The multi-purpose comparison test block according to claim 2, characterized in that: The surface roughness of the test block body is configured to be no greater than 6.3 μm, and the surface roughness of the inner hole (5) is configured to be no greater than 3.2 μm.

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