CN212433071U - Plate-like test piece - Google Patents
Plate-like test piece Download PDFInfo
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- CN212433071U CN212433071U CN202020233774.XU CN202020233774U CN212433071U CN 212433071 U CN212433071 U CN 212433071U CN 202020233774 U CN202020233774 U CN 202020233774U CN 212433071 U CN212433071 U CN 212433071U
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- 238000012360 testing method Methods 0.000 title claims description 18
- 230000007547 defect Effects 0.000 claims abstract description 217
- 239000002184 metal Substances 0.000 claims abstract description 77
- 239000000463 material Substances 0.000 claims abstract description 49
- 229910000679 solder Inorganic materials 0.000 claims abstract description 35
- 238000003466 welding Methods 0.000 claims abstract description 32
- 230000001788 irregular Effects 0.000 claims description 33
- 239000011148 porous material Substances 0.000 claims description 9
- 239000007769 metal material Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 18
- 239000002131 composite material Substances 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 9
- 230000004907 flux Effects 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 13
- 238000005260 corrosion Methods 0.000 description 13
- 239000007789 gas Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a platelike sample belongs to composite sheet technical detection field. The sample comprises a plate part, a welding part and a sample defect, wherein the plate part comprises a first metal plate and a second metal plate, and the welding part is made of welding materials; the bottom surface of the first metal plate is attached to the top surface of the second metal plate, and the side surface of the first metal plate is connected with the side surface of the second metal plate to form the side surface of the plate part; the welding flux part is arranged on the side surface of the plate part and is welded with the plate part; specimen defects are provided on the slab section and/or the solder section. The utility model discloses a mode of connecting solder portion on sheet material portion, the pressure vessel uses the equipment mode of composite sheet among the simulation actual conditions. By the method for forming the sample defects on the plate part and the solder part, the defects of which the shapes and the sizes are fixed values exist in the sample, and the accuracy of an ultrasonic detection mode for detecting the sample can be determined in the process of carrying out ultrasonic detection on the plate-shaped sample.
Description
Technical Field
The utility model relates to a composite sheet technical detection field, in particular to platelike sample.
Background
The pressure container is a sealed device which contains gas or liquid and bears certain pressure. In industrial transportation, pressure vessels are commonly used to contain high-risk media that can cause corrosion.
Since the pressure vessel is susceptible to corrosion, the corrosion state of the pressure vessel needs to be periodically detected to determine whether the pressure vessel is suitable for continued operation. In the related art, the corrosion state of the pressure vessel is generally detected by means of ultrasonic detection.
However, the accuracy of different ultrasonic detection methods is different, and the exact state of the inside of the pressure vessel cannot be determined.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a plate sample can make the accuracy of the ultrasonic detection mode that detects to the sample confirm:
providing a plate-shaped test sample, wherein the plate-shaped test sample comprises a plate part, a welding flux part and a test sample defect;
the plate material part comprises a first metal plate and a second metal plate, and the welding material part is made of welding materials;
the bottom surface of the first metal plate is attached to the top surface of the second metal plate, the top surface of the first metal plate corresponds to the top surface of the plate material part, the bottom surface of the second metal plate corresponds to the bottom surface of the plate material part, and the side surface of the first metal plate is connected with the side surface of the second metal plate to form the side surface of the plate material part;
the welding material part is arranged on the side surface of the plate part and is welded with the plate part;
the sample defects are disposed on the slab section and/or the solder section.
In an alternative embodiment, the specimen defects include at least one of prismatic defects, cylindrical defects, and irregular hole-like defects.
In an alternative embodiment, the specimen defect is disposed on the first metal plate;
and/or;
the sample defect is disposed on the second metal plate;
and/or;
the sample defect is provided on the solder portion.
In an alternative embodiment, the distance between two adjacent specimen defects is greater than a first distance threshold.
In an alternative embodiment, the specimen defect includes at least two of the prism-like defects;
the base areas of the prismatic defects are different from each other;
and/or the presence of a gas in the gas,
the depths of the prismatic defects are different from each other.
In an alternative embodiment, the specimen defect includes at least two cylindrical defects;
the bottom areas of the cylindrical defects are different from each other;
and/or the presence of a gas in the gas,
the depths of the cylindrical defects are different from each other.
In an alternative embodiment, the specimen defects include at least two irregular hole-like defects;
the pore diameters of the irregular porous defects are different from each other;
and/or the presence of a gas in the gas,
the irregular hole-like defects have hole depths different from each other.
In an alternative embodiment, the plate specimen comprises at least two slab sections;
and two adjacent plate material parts are connected by welding through the welding flux part.
In an alternative embodiment, the specimen defect is located a distance from the solder portion greater than a second distance threshold when the specimen defect is located on the slab portion.
In an alternative embodiment, the first metal plate is of a different metal material than the second metal plate.
The utility model provides a beneficial effect that technical scheme brought includes at least:
the method is characterized in that the first metal plate and the second metal plate in the plate material part are compounded through punch forming, and the welding flux part is connected on the plate material part, so that the assembling mode of the composite plate for the pressure container in an actual situation is simulated. The method for forming the sample defects on the plate part and the solder part ensures that the defects with fixed shapes and sizes exist in the sample, and the accuracy of the ultrasonic detection mode for detecting the sample can be determined through the position and the size of the determined sample defects existing in the sample in the process of carrying out ultrasonic detection on the plate-shaped sample.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a plate-shaped sample provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another plate-shaped sample provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another plate-shaped sample according to an embodiment of the present invention.
The various reference numbers in the drawings are illustrated below:
1-a sheet material part;
11-a first metal plate, 12-a second metal plate;
2-a solder portion;
3. 311, 312, 313, 314 specimen defects
3301. 3302-cylindrical defects;
3303. 3304, 3305, 3306, 3307, 3308, 3309, 3310-irregular cell defects.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
First, the nouns related to the embodiments of the present invention are simply described:
a pressure container: the pressure-bearing closed device is closed equipment which contains gas or liquid and bears certain pressure. The pressure container has wide application range, and has important position and function in many departments of industry, civil use, military industry and the like and many fields of scientific research. The pressure container is mainly used for the technical processes of heat transfer, mass transfer, reaction and the like, and storing and transporting gas or liquefied gas with pressure in the fields of chemical industry and petrochemical industry; the method also has wide application in other industrial and civil fields. Since the pressure vessel is a closed device, the inspection and flaw detection work performed on the pressure vessel is generally performed by means of ultrasonic inspection.
Because the medium transported by the pressure container is very complex, for example, natural gas contains acidic gases such as CO2, H2S and the like, and water often contains substances such as salts, residual acid after acidification, sediments, bacteria, foam scrubbing agent and the like. These materials can cause corrosion of the inner walls of the pressure vessel. The corrosion can lead to the wall thickness attenuate, appears the pit, destroys accidents such as perforation even, seriously influences pressure vessel's normal operating, especially transport the pressure vessel who contains the sulfur medium, and some pressure vessel just put into operation 2 ~ 3 years and just take place the perforation and leak the accident. In order to solve the problem of serious corrosion, a part of the pressure vessel with strong corrosivity of the conveying medium is replaced by a corrosion-resistant pressure vessel taking the bimetal composite plate as the material.
The material from which the pressure vessel is made comprises a plate-like composite material. The plate-like composite material generally comprises a base layer and a composite layer. The basic unit is the metal level with external environment direct contact, and the multiple layer is the metal level with pressure vessel and liquid direct contact when splendid attire liquid, and basic unit and multiple layer are connected through the mode of punching press. In general, since the base layer is in contact with the outside, the base layer needs to have a high hardness and a high wear resistance; the multiple layers need to have a strong corrosion resistance because they are in contact with the media contained therein. Optionally, the metal material applied for the base layer and the clad layer is different.
However, in the manufacturing and service processes of the composite material, due to manufacturing process problems or long-term influence of complex environment, the composite board still has some defects such as cracks, air holes, looseness, pipe body corrosion, slag inclusion and the like, and the mechanical bonding layer may have the defect of poor connection quality. And the welding position may have the defects of incomplete penetration, incomplete fusion, corrosion pit and the like due to the technical difference of welding personnel and the difference of adopted welding processes and the long-term action of the environment on the composite plates.
Fig. 1 is a schematic structural diagram of a plate-shaped sample provided in an embodiment of the present invention, where the plate-shaped sample includes: the panel material part 1 comprises a first metal plate 11 and a second metal plate 12, the solder part 2 and the sample defect 3, and the solder part 2 is made of a welding material. The bottom surface of the first metal plate 11 is attached to the top surface of the second metal plate 12, the top surface of the first metal plate 11 corresponds to the top surface of the plate material portion 1, the bottom surface of the second metal plate 12 corresponds to the bottom surface of the plate material portion 1, and the side surface of the first metal plate 11 is connected with the side surface of the second metal plate 12 to form the side surface of the plate material portion 1. The solder part 2 is arranged on the side surface of the plate part 1 and is connected with the plate part 1 in a welding way. The specimen defect 3 is provided on the slab section 1 and/or the solder section 2. The specimen defect 3 is a defect formed in the plate-like specimen and is used to determine the accuracy of the ultrasonic detection method for detecting the plate-like specimen.
The embodiment of the present invention provides a plate-shaped sample, the working principle of which is detailed below:
the method is characterized in that a first metal plate and a second metal plate in a plate material part are compounded in a punch forming mode, and a welding material part is connected on the plate material part, so that the assembling mode of the composite plate for the pressure container in an actual situation is simulated. The method for arranging the sample defects on the plate part and the solder part ensures that the defects with fixed shapes and sizes exist in the plate-shaped sample, and the accuracy of an ultrasonic detection mode for detecting the sample can be determined according to the positions and the sizes of the sample defects existing in the sample in the process of carrying out ultrasonic detection on the plate-shaped sample.
In an alternative embodiment, the specimen defects include at least one of prismatic defects, cylindrical defects, and irregular hole-like defects.
In an alternative embodiment, the specimen defect is disposed on the first metal plate; and/or, the sample defect is disposed on the second metal sheet; and/or, the sample defect is disposed on the solder portion.
The sample defects may be located on the sheet portion, or the sample defects may be located on the solder portion, or a portion of a single sample defect may be located on the sheet portion and the remaining portion on the solder portion.
In the present embodiment, the prismatic defects indicate specimen defects in the shape of rectangular parallelepipeds; the cylindrical defect indicates a specimen defect in the shape of a cylinder; the irregular hole defect indicates a hole defect having a circular shape on the surface contacting the plate-like test piece and an irregular shape on the inside, and the shape of the internal defect includes, but is not limited to, a screw hole shape, or a screw shape.
Optionally, when the sample defect is opened, one surface of the sample defect is coplanar with one surface of the plate part or the solder part, and the sample defect is opened inside the plate-shaped sample. In one example, the specimen defect is a prismatic defect having a bottom surface coincident with the first bottom surface and opening in the first metal plate; in another example, the specimen defect is a cylindrical defect having one bottom surface coincident with the fourth bottom surface and opened in the second metal plate; in another example, the specimen defect is an irregular hole-like defect having a punching surface coinciding with a side surface of the solder portion and opened in the solder portion.
In an alternative embodiment, the plate specimen is provided with at least two specimen defects.
Optionally, the number of specimen defects is at least two. Optionally, the at least two sample defects are of the same type and size, or the at least two sample defects are of different types.
Optionally, the position where the sample defect is arranged comprises any one of six faces where the sheet material part is not in contact with the solder part, any one of five faces where the solder part is not in contact with the sheet material part, and the joint of the sheet material part and the solder part.
Alternatively, the specimen defects are arranged in a linear arrangement.
Alternatively, when the number of specimen defects is at least two, the same kind of specimen defects may be grouped into one group. In one example, three sets of specimen defects are included on the plate specimen, a first set of specimen defects including four prism-like defects of different sizes, a second set of specimen defects including four cylindrical defects of different sizes, and a third set of specimen defects including four irregular hole-like defects of different sizes. In this example, the same set of specimen defects may constitute an array of defects, i.e., each specimen defect in the array is equidistant from adjacent specimen defects. For example, the defect array includes four prismatic defects, the central connecting lines of the four prismatic defects can form a square, and the distance from each prismatic defect to two adjacent prismatic defects is equal.
Alternatively, when the number of specimen defects is at least two, specimen defects at the same position in the plate-like specimen may be grouped into one group. In one example, three sets of specimen defects are included on the plate specimen, each set including a prismatic defect, a cylindrical defect, and an irregular hole defect of equal height, and a first set of specimen defects is opened inside the solder portion, a second set of specimen defects is opened inside the first metal plate, and a third set of specimen defects is opened inside the second metal plate.
In an alternative embodiment, the distance between two adjacent specimen defects is greater than a first distance threshold.
When at least two specimen defects are included in the plate specimen, the distance between any two specimen defects should be greater than the first distance threshold. The first distance threshold indicates a minimum distance between the center positions of two specimen defects, or the first distance threshold indicates a minimum distance from an edge of one specimen defect to an edge of another specimen defect.
In an alternative embodiment, the specimen defects include at least two prismatic defects, the prismatic defects having base areas different from each other; and/or the depths of the prismatic defects are different from each other.
When the specimen defects include the prism-like defects, each of the prism-like defects is different from each other. Wherein, the basal area of each prismatic defect is not the same; or, the depth of each of the prismatic defects is different from each other; alternatively, the base area and length of each prismatic defect may be different. Fig. 2 shows a schematic structural diagram of another plate-shaped sample provided by an embodiment of the present invention. Referring to fig. 2, the plate-shaped sample includes four prismatic defects, one surface of the prismatic defect 311 and the prismatic defect 312 is in contact with the second bottom surface of the first metal plate 11 and is opened in the first metal plate 11, and the prismatic defect 311 and the prismatic defect 312 have the same bottom area and different depths. One surface of the prismatic defect 313 and the prismatic defect 314 is in contact with the fourth bottom surface of the second metal plate 12, and is opened in the second metal plate, and the area and the depth of the prismatic defect 313 and the prismatic defect 314 are different.
In an alternative embodiment, the specimen defects include at least two cylindrical defects, the cylindrical defects having base areas different from each other and/or having depths different from each other.
When the specimen defect includes a cylindrical defect, each cylindrical defect is different from each other. Wherein, the bottom area of each cylindrical defect is different; or, the depth of each cylindrical defect is different from each other; or, the base area and the length of each cylindrical defect are different from each other.
In one example, three cylindrical defects are included on the plate-like test piece, and the three cylindrical defects are different from each other. Optionally, the first cylindrical defect has a pore size of 3mm and a depth of 8 mm; the diameter of the second cylindrical defect is 3mm, and the depth is 6 mm; the third cylindrical defect had a diameter of 3mm and a depth of 10 mm.
In an alternative embodiment, the specimen defects include at least two irregular hole-like defects; the pore diameters of the irregular porous defects are different from each other; and/or the hole depths of the irregular hole-like defects are different from each other.
When irregular pore-like defects are included in the specimen defects, each of the irregular pore-like defects is different from each other. Wherein, the pore diameters of each irregular porous defect are different; or, the hole depth of each irregular hole-like defect is different from each other; or, the pore diameter and the pore depth of each irregular porous defect are different from each other.
In one example, three irregular pore defects are included on the plate-like test piece, and the three irregular pore defects are different from each other. Optionally, the first irregular porous defect has a hole depth of 13mm and a hole diameter of 2 mm; the second irregular porous defect had a hole depth of 12mm and a hole diameter of 3mm, and the third irregular porous defect had a hole depth of 10mm and a hole diameter of 4 mm.
Alternatively, the shape of the hole of the irregular hole-like defect is related to the punching manner, and the shape of the punching can be determined by controlling the punching manner. The present embodiment does not limit the shape of the hole.
Optionally, when the three defects are set, the defects may be set on the same surface of the slab section, or the defects may be set on two adjacent surfaces of the slab section. In one example, one set of prismatic defects is disposed on the side surface of the second metal plate, and another set of hole defects is disposed on the bottom surface of the second metal plate. Fig. 3 is a schematic structural diagram of another plate-shaped sample according to an embodiment of the present invention. Referring to fig. 3, the plate-shaped sample shown in fig. 3 includes a cylindrical defect 3301, a cylindrical defect 3302, and irregular hole-shaped defects 3303 to 3311. As shown in fig. 3, the cylindrical defects 3301 and 3302 are disposed on the slab section 1 and on the first side of the second metal plate 12; the irregular hole defects 3303 to 3310 are provided on the sheet metal portion 1, and are provided on the bottom surface of the second metal plate 12. The first side of the second metal plate 12 is adjacent to the bottom surface of the second metal plate 12. When the size of the cylindrical defect is expressed in a form of a radius × a depth, the size of the cylindrical defect 3301 is 3mm × 15mm, and the size of the cylindrical defect 3302 is 3mm × 12 mm; when the sizes of the irregular hole defects are expressed in terms of the hole diameter × the hole length, the sizes of the irregular hole defects 3303 to 3310 are 2mm × 13mm, 2mm × 10mm, 2mm × 7mm, 3mm × 10mm, 3mm × 5mm, 4mm × 12mm, 4mm × 10mm, and 4mm × 5mm, respectively.
In an alternative embodiment, the plate-shaped test piece comprises at least two plate sections, and the two adjacent plate sections are connected through welding through a welding part.
In the actual use process, namely when the pressure container is manufactured, the two plate materials are connected in a welding mode, so that the welding connection is simulated in a mode of welding the two plate material parts through the welding parts. Optionally, the solder part is disposed on a side surface of the panel part, and the other two panel parts are connected by the solder part, that is, the side surfaces of the two solder parts are connected by soldering.
In an alternative embodiment, the specimen defect is located a distance from the solder portion greater than a second distance threshold when the specimen defect is located on the slab portion.
Because the material of the welding material part is different from that of the plate material part, when the sample defect is arranged at the edge position of the plate material part close to the welding material part, in the detection process, the sound wave is influenced by the edge effect at the sample defect position, so that the test result cannot be more accurate. Optionally, the distance between the center position of the sample defect and the solder part is greater than a second distance threshold; or, the distance between the edge position of the sample defect and the solder part is larger than the second distance threshold.
Optionally, the first metal plate and the second metal plate are applied with different metal materials.
Alternatively, a plate-like test piece is used to simulate a pressure vessel in an actual situation. The base layer and the clad layer of the plate material of the pressure container are made of different metal materials because the plate material of the pressure container usually comprises the base layer and the clad layer, wherein the base layer has higher hardness and the clad layer has better corrosion resistance. Similarly, the first metal plate and the second metal plate are made of different metal materials in the plate-like test piece. Illustratively, the first metal layer is 20# carbon steel and the second metal layer is +316L stainless steel.
To sum up, the embodiment of the utility model provides a method compounds with the stamping forming through first metal sheet in the sheet metal portion and second metal sheet to the mode of connecting solder portion on the sheet metal portion, the pressure vessel is with the equipment mode of composite sheet in the simulation actual conditions.
The method for forming the sample defects on the plate part and the solder part ensures that the defects with the determined shapes and sizes exist in the sample, and the accuracy of the ultrasonic detection mode for detecting the sample can be determined through the position and the size of the determined sample defects existing in the sample in the process of carrying out ultrasonic detection on the plate-shaped sample. Prismatic defects were set to simulate composite layer corrosion and cracking defects in actual conditions, cylindrical defects were set to simulate internal cracks or unfused defects in actual conditions, irregular hole defects were set to simulate defects such as slag inclusions and porosity in actual conditions.
By setting different types and different positions of sample defects and setting a plurality of sample defects, the comprehensiveness and accuracy of detection results can be judged more visually, and the actual situation can be simulated more accurately.
By setting the distance between adjacent sample defects to be smaller than the first distance threshold, errors caused by too close distance between the sample defects in the detection result can be avoided.
The accuracy of the detection result is further determined for different conditions by arranging the defects of the samples of the same type and different sizes.
And eliminating the influence of the boundary effect on the detection result by setting the second distance threshold.
By using the method that the two plate parts are connected by the welding parts and the first metal plate and the second metal plate which are made of different materials are used, the plate-shaped sample is closer to an actual product, and a detection result can represent a direct actual condition.
Above-mentioned all optional technical scheme can adopt arbitrary combination to form the optional embodiment of this utility model, and the repeated description is no longer given here.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A plate-like test specimen is characterized in that the plate-like test specimen comprises a plate material part (1), a welding material part (2) and a test specimen defect (3);
the sheet material part (1) comprises a first metal plate (11) and a second metal plate (12), and the solder part (2) is made of welding materials;
the bottom surface of the first metal plate (11) is attached to the top surface of the second metal plate (12), the top surface of the first metal plate (11) corresponds to the top surface of the plate material part (1), the bottom surface of the second metal plate (12) corresponds to the bottom surface of the plate material part (1), and the side surface of the first metal plate (11) is connected with the side surface of the second metal plate (12) to form the side surface of the plate material part (1);
the welding material part (2) is arranged on the side surface of the plate material part (1) and is connected with the plate material part (1) in a welding mode;
the sample defects (3) are arranged on the sheet metal part (1) and/or the solder part (2).
2. The plate-like specimen according to claim 1, characterized in that the specimen defects (3) comprise at least one of prismatic defects, cylindrical defects and irregular hole-like defects.
3. The plate specimen according to claim 2, characterized in that the specimen defect (3) is provided on the first metal plate (11);
and/or;
the specimen defect (3) is arranged on the second metal plate (12);
and/or;
the sample defect (3) is provided on the solder part (2).
4. Plate-like specimen according to any one of claims 1 to 3, characterized in that the distance between two adjacent specimen defects (3) is greater than a first distance threshold.
5. The plate-like specimen according to any one of claims 1 to 3, characterized in that said specimen defects (3) comprise at least two prismatic defects;
the base areas of the prismatic defects are different from each other;
and/or the presence of a gas in the gas,
the depths of the prismatic defects are different from each other.
6. The plate-like test specimen according to any one of claims 1 to 3, characterized in that said test specimen defects (3) comprise at least two cylindrical defects;
the bottom areas of the cylindrical defects are different from each other;
and/or the presence of a gas in the gas,
the depths of the cylindrical defects are different from each other.
7. The plate-like coupon according to any of claims 1 to 3, characterized in that said coupon defects (3) comprise at least two irregular hole-like defects;
the pore diameters of the irregular porous defects are different from each other;
and/or the presence of a gas in the gas,
the irregular hole-shaped defects have hole depths different from each other.
8. -plate specimen according to any of claims 1 to 3, characterized in that it comprises at least two of said slab sections (1);
the two adjacent plate material parts (1) are connected through the welding material part (2) in a welding mode.
9. The plate-like test piece according to any one of claims 1 to 3,
when the sample defect (3) is disposed on the sheet metal portion (1), the distance of the sample defect (3) from the solder portion (2) is greater than a second distance threshold.
10. Plate-like specimen according to any one of claims 1 to 3, characterized in that said first metal plate (11) and said second metal plate (12) are made of different metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020233774.XU CN212433071U (en) | 2020-02-28 | 2020-02-28 | Plate-like test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020233774.XU CN212433071U (en) | 2020-02-28 | 2020-02-28 | Plate-like test piece |
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| Publication Number | Publication Date |
|---|---|
| CN212433071U true CN212433071U (en) | 2021-01-29 |
Family
ID=74276448
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|---|---|---|---|
| CN202020233774.XU Active CN212433071U (en) | 2020-02-28 | 2020-02-28 | Plate-like test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212433071U (en) |
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2020
- 2020-02-28 CN CN202020233774.XU patent/CN212433071U/en active Active
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