A method for manufacturing a comparative test block of austenitic stainless steel T-shaped welded joint

Abstract

The present application relates to the technical field of ultrasonic testing of austenitic stainless steel T type welded joints, and provides a method for manufacturing a comparison test block of an austenitic stainless steel T type welded joint, comprising the following steps: analyzing and recording size and structure information of an austenitic stainless steel T type welded joint to be detected, and manufacturing a comparison test block blank according to the size and structure information of the austenitic stainless steel T type welded joint to be detected; determining a real reflection body position on the comparison test block blank according to the size and structure information of the austenitic stainless steel T type welded joint to be detected; setting an artificial reflection body at the real reflection body position to obtain a comparison test block of the austenitic stainless steel T type welded joint to be detected. The comparison test block of the austenitic stainless steel T type welded joint to be detected manufactured by the present application can meet the requirement of sensitivity curve manufacturing, and thus can effectively perform ultrasonic testing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ultrasonic testing of austenitic stainless steel T type welded joints, and particularly relates to a method for manufacturing a comparison test block of an austenitic stainless steel T type welded joint. BACKGROUND

[0002] With the vigorous development of nuclear power projects in China, the quality requirements for nuclear power equipment are increasingly strict, and the demand for ultrasonic testing of austenitic stainless steel welded joints is proposed in product design and manufacturing.

[0003] Due to the coarse columnar grain of the austenitic stainless steel weld, the structure is not uniform, and it has obvious anisotropy; the columnar grain of the weld area is different from the grain structure of the base material, and there is an obvious heterogeneous interface. Therefore, the ultrasonic testing comparison test block of the austenitic stainless steel T type welded joint is different from the ultrasonic testing comparison test block of the austenitic stainless steel butt joint.

[0004] The existing ultrasonic testing technology only has the design of the comparison test block of the austenitic stainless steel butt joint, but does not have the design of the comparison test block of the austenitic stainless steel T type welded joint. When facing the requirement of ultrasonic testing of the austenitic stainless steel T type welded joint, due to the lack of comparison test block, the sensitivity curve cannot be manufactured, and the ultrasonic testing cannot be effectively performed. SUMMARY

[0005] In view of the above technical problems, a method for manufacturing a comparison test block of an austenitic stainless steel T type welded joint is provided.

[0006] The technical means adopted by the present application are as follows:

[0007] A method for manufacturing a comparison test block of an austenitic stainless steel T type welded joint, comprising the following steps:

[0008] S1: analyzing and recording the size and structure information of the austenitic stainless steel T type welded joint to be detected, and manufacturing a comparison test block blank according to the size and structure information of the austenitic stainless steel T type welded joint to be detected;

[0009] S2: determining the reflection body actual position on the comparison test block blank according to the size and structure information of the austenitic stainless steel T type welded joint to be detected;

[0010] S3: setting an artificial reflection body at the reflection body actual position to obtain the comparison test block of the austenitic stainless steel T type welded joint to be detected.

[0011] Further, the size and structure information of the comparison test block blank is consistent with the size and structure information of the austenitic stainless steel T type welded joint to be detected; the size and structure information includes the web thickness, the wing plate thickness, the welding method, the groove form and the welding material.

[0012] Further, the weld of the comparison test block blank has more layers than the weld of the austenitic stainless steel T-shaped welded joint to be detected.

[0013] Further, the length of the weld of the comparison test block blank is not less than a set length.

[0014] Further, the S2 comprises the following steps:

[0015] S21: drawing a plan view of the austenitic stainless steel T-shaped welded joint to be detected according to size structure information of the austenitic stainless steel T-shaped welded joint to be detected;

[0016] S22: setting a simulated probe detection direction on the plan view of the austenitic stainless steel T-shaped welded joint to be detected, and determining a simulated scanning coverage weld area on the plan view of the austenitic stainless steel T-shaped welded joint to be detected according to the simulated probe detection direction, wherein the simulated scanning coverage weld area comprises a simulated scanning weld area depth range.

[0017] S23: determining a reflector preset position on the plan view of the austenitic stainless steel T-shaped welded joint to be detected according to the simulated scanning weld area depth range, wherein the reflector actual position is located at a position on the comparison test block blank corresponding to the reflector preset position.

[0018] Further, the simulated probe detection direction is any one of a web probe detection direction and a wing plate probe detection direction; the starting point of the web probe detection direction is located on the edge of the web of the plan view of the austenitic stainless steel T-shaped welded joint to be detected, and the web probe detection direction sequentially passes through the web and the weld on the plan view of the austenitic stainless steel T-shaped welded joint to be detected; the starting point of the wing plate probe detection direction is located on the edge of the wing plate of the plan view of the austenitic stainless steel T-shaped welded joint to be detected, and the wing plate probe detection direction sequentially passes through the wing plate and the weld on the plan view of the austenitic stainless steel T-shaped welded joint to be detected.

[0019] Further, the reflector preset position is provided with at least three and is located on the weld of the plan view of the austenitic stainless steel T-shaped welded joint to be detected; the vertical projection of two reflector preset positions on the simulated scanning weld area depth range is respectively located on the two ends of the simulated scanning weld area depth range, and the vertical projection of the remaining reflector preset position on the simulated scanning weld area depth range is located between the two ends of the simulated scanning weld area depth range.

[0020] Further, the artificial reflector is a transverse through hole, and the length direction of the transverse through hole is consistent with the length direction of the weld of the comparison test block blank.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] In the present application, a kind of austenitic stainless steel T type welded joint's comparative test block manufacturing method is provided, solve the problem of no comparative test block when facing the ultrasonic detection requirement of austenitic stainless steel T type welded joint, the comparative test block of the austenitic stainless steel T type welded joint to be detected made by the present application can meet the sensitivity curve production demand, and then ultrasonic detection can be effectively carried out. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 The overall flow chart of the present application, a kind of austenitic stainless steel T type welded joint's comparative test block manufacturing method is shown in the figure;

[0025] Figure 2 The overall flow chart of S2 in the present application, a kind of austenitic stainless steel T type welded joint's comparative test block manufacturing method is shown in the figure;

[0026] Figure 3 The plan view of the austenitic stainless steel T type welded joint to be detected in embodiment 1 of the present application is shown in the figure;

[0027] Figure 4 The overall structure diagram of the comparative test block of the austenitic stainless steel T type welded joint to be detected in embodiment 1 of the present application is shown in the figure;

[0028] Figure 5 The plan view of the austenitic stainless steel T type welded joint to be detected in embodiment 2 of the present application is shown in the figure;

[0029] Figure 6 The overall structure diagram of the comparative test block of the austenitic stainless steel T type welded joint to be detected in embodiment 2 of the present application is shown in the figure;

[0030] Reference signs: 1-web plate;2-wing plate;3-weld;4-welding allowance layer;5-artificial reflector;6-web plate probe detection direction;7-wing plate probe detection direction;8-simulated scanning covers the weld area;9-simulated scanning weld area depth range;10-probe detection direction moving range. DETAILED DESCRIPTION

[0031] It should be noted that the embodiments and features of the present application can be combined with each other, if there is no conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0032] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. The description of the at least one exemplary embodiment below is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0033] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0034] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not limiting. It should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportions. The techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0036] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0037] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0038] Example 1:

[0039] like Figures 1 to 4 As shown, a method for preparing a comparative test block of an austenitic stainless steel T-type welded joint includes the following steps:

[0040] S1: Analyze and record the dimensional and structural information of the austenitic stainless steel T-welded joint to be tested, and prepare a comparative test block blank based on the dimensional and structural information of the austenitic stainless steel T-welded joint to be tested.

[0041] S2: Based on the size and structure information of the austenitic stainless steel T-welded joint to be tested, determine the actual position of the reflector on the comparison test block blank;

[0042] S3: An artificial reflector 5 is set at the actual position of the reflector to obtain a comparison test block of the austenitic stainless steel T-type welded joint to be tested.

[0043] In the embodiment, the size and structure information of the contrast test block blank is consistent with the size and structure information of the austenitic stainless steel T-shaped welded joint to be detected; and the size and structure information includes the web thickness, the wing plate thickness, the welding method, the groove form and the welding material.

[0044] Specifically, the web thickness is 50 mm, and the wing plate thickness is 30 mm; during the welding process, liquid penetration detection is performed after the first layer and every three layers of welding, and the next step of welding is performed after passing the detection, so as to ensure the weld quality of the contrast test block blank.

[0045] In the embodiment, the weld 3 of the contrast test block blank is more than the weld of the austenitic stainless steel T-shaped welded joint to be detected by a set number of layers.

[0046] Specifically, in order to reserve sufficient processing positions for the artificial reflector 5, the weld 3 of the contrast test block blank should be more than the weld of the austenitic stainless steel T-shaped welded joint to be detected by 1-2 layers, and the 1-2 layers of overwelding are set as the allowance welding layer 4.

[0047] In the embodiment, the length of the weld 3 of the contrast test block blank is not less than a set length.

[0048] Specifically, the length of the weld 3 of the contrast test block blank should be large enough, and the two ends where the weld quality is not easy to guarantee should be cut off in the final processing stage, and the length of the remaining weld 3 is not less than 60 mm.

[0049] In the embodiment, the S2 includes the following steps:

[0050] S21: drawing a plan view of the austenitic stainless steel T-shaped welded joint to be detected according to the size and structure information of the austenitic stainless steel T-shaped welded joint to be detected;

[0051] S22: setting a simulated probe detection direction on the plan view of the austenitic stainless steel T-shaped welded joint to be detected, and determining a simulated scanning coverage weld area 8 on the plan view of the austenitic stainless steel T-shaped welded joint to be detected according to the simulated probe detection direction, wherein the simulated scanning coverage weld area 8 includes a simulated scanning weld area depth range 9.

[0052] S23: determining a reflector preset position on the plan view of the austenitic stainless steel T-shaped welded joint to be detected according to the simulated scanning weld area depth range 9, and the reflector actual position is located at a position on the contrast test block blank corresponding to the reflector preset position.

[0053] Specifically, when the probe distance-amplitude curve is made, the simulated scanning weld area depth range 9 needs to be included, and the probe distance-amplitude curve is a prior art which is not described herein.

[0054] In the embodiment, the simulation probe detection direction is the web probe detection direction 6; the starting point of the web probe detection direction 6 is located on the edge of the web 1 in the plan view of the austenitic stainless steel T-shaped welded joint to be detected and scans within the set probe detection direction moving range 10 (in the embodiment, the probe detection direction moving range 10 is parallel to the length direction of the web 1), and the web probe detection direction 6 sequentially passes through the web 1 and the weld 3 in the plan view of the austenitic stainless steel T-shaped welded joint to be detected.

[0055] In the embodiment, the reflector preset positions are at least three and are all located on the weld 3 in the plan view of the austenitic stainless steel T-shaped welded joint to be detected; the vertical projections of two of the reflector preset positions on the simulated scan weld region depth range 9 are respectively located on the two ends of the simulated scan weld region depth range 9, and the vertical projection of the remaining reflector preset position on the simulated scan weld region depth range 9 is located between the two ends of the simulated scan weld region depth range 9.

[0056] Specifically, as shown in Figure 4 , the reflector preset positions are three and are all located on the interface between the wing plate 2 and the weld 3 in the plan view of the austenitic stainless steel T-shaped welded joint to be detected.

[0057] In the embodiment, the artificial reflector 5 is a transverse through hole, and the length direction of the transverse through hole is consistent with the length direction of the weld 3 of the contrast test block blank.

[0058] Specifically, the diameter of the transverse through hole is 2 mm.

[0059] Embodiment 2:

[0060] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , in the embodiment, the simulation probe detection direction is the wing plate probe detection direction 7; the starting point of the wing plate probe detection direction 7 is located on the edge of the wing plate 2 in the plan view of the austenitic stainless steel T-shaped welded joint to be detected and scans within the set probe detection direction moving range 10 (in the embodiment, the probe detection direction moving range 10 is parallel to the length direction of the wing plate 2), and the wing plate probe detection direction 7 sequentially passes through the wing plate 2 and the weld 3 in the plan view of the austenitic stainless steel T-shaped welded joint to be detected.

[0061] In the embodiment, the reflector preset positions are provided with at least three and are all located on the weld 3 of the plan view of the austenitic stainless steel T-shaped welded joint to be detected; the vertical projections of two reflector preset positions on the simulated scanning weld region depth range 9 are respectively located on the two ends of the simulated scanning weld region depth range 9, and the vertical projections of the remaining reflector preset positions on the simulated scanning weld region depth range 9 are located between the two ends of the simulated scanning weld region depth range 9.

[0062] Specifically, as shown in Figure 6 the reflector preset positions are provided with four, the vertical projections of two reflector preset positions on the simulated scanning weld region depth range 9 are respectively located on the two ends of the simulated scanning weld region depth range 9, and the vertical projections of the remaining two reflector preset positions on the simulated scanning weld region depth range 9 are all located between the two ends of the simulated scanning weld region depth range 9 and the positions are different from each other.

[0063] The remaining parts are the same as those of the embodiment 1 and are not described here.

[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of producing a comparative test block of an austenitic stainless steel T- welded joint, characterized by, The method comprises the following steps: S1: analyzing and recording the size and structure information of the austenitic stainless steel T-shaped welded joint to be detected, and preparing a comparison test block blank according to the size and structure information of the austenitic stainless steel T-shaped welded joint to be detected; S2: determining the reflection body actual position on the comparison test block blank according to the size and structure information of the austenitic stainless steel T-shaped welded joint to be detected; S3: setting an artificial reflection body at the reflection body actual position to obtain the comparison test block of the austenitic stainless steel T-shaped welded joint to be detected; The S2 comprises the following steps: S21: drawing a plan view of the austenitic stainless steel T-shaped welded joint to be detected according to the size and structure information of the austenitic stainless steel T-shaped welded joint to be detected; S22: setting a simulated probe detection direction on the plan view of the austenitic stainless steel T-shaped welded joint to be detected, and determining a simulated scanning coverage weld area on the plan view of the austenitic stainless steel T-shaped welded joint to be detected according to the simulated probe detection direction, wherein the simulated scanning coverage weld area comprises a simulated scanning weld area depth range; S23: determining a reflection body preset position on the plan view of the austenitic stainless steel T-shaped welded joint to be detected according to the simulated scanning weld area depth range, and the reflection body actual position is located at a position corresponding to the reflection body preset position on the comparison test block blank; The reflection body preset position is provided with at least three and is located on the weld of the plan view of the austenitic stainless steel T-shaped welded joint to be detected; The vertical projections of two reflection body preset positions on the simulated scanning weld area depth range are respectively located on the two ends of the simulated scanning weld area depth range, and the vertical projection of the remaining reflection body preset position on the simulated scanning weld area depth range is located between the two ends of the simulated scanning weld area depth range.

2. The method of claim 1, wherein the austenitic stainless steel T- joint comparative test block is characterized by: The size and structure information of the comparison test block blank is consistent with the size and structure information of the austenitic stainless steel T-shaped welded joint to be detected; The size and structure information comprises a web thickness, a wing plate thickness, a welding method, a groove form and a welding material.

3. The method for preparing a comparative test block of an austenitic stainless steel T-type welded joint according to claim 2, characterized in that, The weld of the comparison test block blank is more than the set number of layers of the weld of the austenitic stainless steel T-shaped welded joint to be detected.

4. The method of claim 2, wherein the austenitic stainless steel T- joint comparative test block is characterized by: The length of the weld of the comparison test block blank is not less than the set length.

5. The method of claim 1, wherein the austenitic stainless steel T- joint comparative test block is characterized by: The simulated probe detection direction is any one of a web probe detection direction and a wing plate probe detection direction; The starting point of the web probe detection direction is located on the edge of the web of the plan view of the austenitic stainless steel T-shaped welded joint to be detected, and the web probe detection direction sequentially passes through the web and the weld on the plan view of the austenitic stainless steel T-shaped welded joint to be detected; The starting point of the wing plate probe detection direction is located on the edge of the wing plate of the plan view of the austenitic stainless steel T-shaped welded joint to be detected, and the wing plate probe detection direction sequentially passes through the wing plate and the weld on the plan view of the austenitic stainless steel T-shaped welded joint to be detected.

6. The method of claim 1, wherein the austenitic stainless steel T- joint comparative test block is characterized by: The artificial reflection body is a transverse through hole, and the length direction of the transverse through hole is consistent with the length direction of the weld of the comparison test block blank.

Images