CN110632185A - Manufacturing method of verification test block for welding seam phased array ultrasonic flaw detection process - Google Patents
Manufacturing method of verification test block for welding seam phased array ultrasonic flaw detection process Download PDFInfo
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- CN110632185A CN110632185A CN201911047914.2A CN201911047914A CN110632185A CN 110632185 A CN110632185 A CN 110632185A CN 201911047914 A CN201911047914 A CN 201911047914A CN 110632185 A CN110632185 A CN 110632185A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
Abstract
The invention discloses a manufacturing method of a verification test block of a welding line phased array ultrasonic flaw detection process. According to the manufacturing method of the test block for verifying the welding line phased array ultrasonic flaw detection process, the artificial defects are arranged at different positions of the plurality of sub-test blocks, so that the detection capability of the flaw detection process on various types of defects can be verified, the defect detection capability of the actual flaw detection process is ensured to be strong no matter whether the defect is a volume type defect or an area type defect, and the condition of missed detection is avoided.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a manufacturing method of a verification test block of a welding line phased array ultrasonic flaw detection process.
Background
The phased array ultrasonic detection technology is a new direction for the development of the current domestic and foreign nondestructive detection technology and is one of the most advanced detection technologies. The phased array ultrasonic technology is a method for realizing ultrasonic wave transmission and reception by controlling sound beams of a phased array ultrasonic probe in an electronic mode. The phased array ultrasonic probe is provided with a plurality of small wafers, namely array elements, each array element is independently excited and different time delays are applied, and ultrasonic waves transmitted by all the array elements form an integral wave front, so that dynamic focusing can be realized, and the shape and the direction of transmitted ultrasonic beams can be effectively controlled. It provides greater capability to determine the shape, size and orientation of a defect than single or multiple conventional ultrasonic probe systems.
Before flaw detection of a welded seam by using phased array ultrasonic waves, a test block provided with artificial defects needs to be tested to verify the reliability and accuracy of a flaw detection process. Most of artificial defects of the existing test block are cutting grooves and transverse through holes, the artificial defects belong to volume defects and cannot represent area defects, when the effectiveness of the flaw detection process is verified, only the detection capability of the volume defects can be verified, and the detection capability of the area defects cannot be verified, so that the area defects are easily missed to be detected and have greater harmfulness when in actual detection.
Disclosure of Invention
The invention aims to provide a manufacturing method of a test block for verifying a welding seam phased array ultrasonic flaw detection process, and the obtained test block can be used for verifying the detection capability of the flaw detection process on various types of defects, so that the detection omission is avoided during actual flaw detection.
In order to achieve the purpose, the invention adopts the following technical scheme:
the method for manufacturing the verification test block of the welding line phased array ultrasonic flaw detection process comprises the following steps:
s1, cutting an original test block to obtain a mother test block and a plurality of child test blocks separated from the mother test block;
s2, arranging artificial defects on different parts of the sub-test blocks, wherein the artificial defects extend from the surfaces of the sub-test blocks to the insides of the sub-test blocks;
and S3, reassembling the plurality of the child test blocks onto the mother test block to obtain the verification test block.
As a preferable scheme of the present invention, the original test block is a plate, and a cutting direction of the original test block is perpendicular to a weld.
As a preferred embodiment of the present invention, the number of the sub-blocks is five, and the sub-blocks are respectively a first block, a second block, a third block, a fourth block and a fifth block.
As a preferred embodiment of the present invention, the first test block, the second test block, the third test block, the fourth test block, and the fifth test block are respectively provided with a first defect, a second defect, a third defect, a fourth defect, and a fifth defect, the first defect, the second defect, and the third defect are all formed along a groove, and the fourth defect and the fifth defect are disposed in a heat affected zone and are respectively formed on upper and lower surfaces of the sub-test blocks.
As a preferable scheme of the present invention, the first defect and the second defect are disposed on the grooves on the same side and spaced from each other, the third defect is disposed on the groove on the other side, the first defect is disposed above the groove, the second defect is disposed below the groove, and the third defect extends from the surface of the sub-block to the middle of the groove.
As a preferred scheme of the invention, the original test block is a pipe, the cutting direction of the original test block is vertical to the welding line, and the plurality of the sub test blocks are strips with arc-shaped sections and are distributed on the mother test block at equal intervals.
As a preferable aspect of the present invention, the number of the sub-blocks is four, and the four sub-blocks are a sixth test block, a seventh test block, an eighth test block, and a ninth test block.
As a preferable aspect of the present invention, a sixth defect, a seventh defect, an eighth defect, and a ninth defect are respectively disposed on the sixth test block, the seventh test block, the eighth test block, and the ninth test block, the sixth defect and the seventh defect are disposed at two ends of a groove on the same side, the eighth defect is disposed on a surface of a weld, and the ninth defect is disposed in a heat affected zone.
As a preferred scheme of the invention, the verification test block is obtained after a plurality of the child test blocks and the mother test block are fixed by spot welding.
In a preferred embodiment of the present invention, the shape and size of the plurality of sub-blocks are the same.
The invention has the beneficial effects that:
according to the manufacturing method of the test block for verifying the welding line phased array ultrasonic flaw detection process, the artificial defects are arranged at different positions of the plurality of sub-test blocks, so that the detection capability of the flaw detection process on various types of defects can be verified, the defect detection capability of the actual flaw detection process is ensured to be strong no matter whether the defect is a volume type defect or an area type defect, and the condition of missed detection is avoided.
Drawings
FIG. 1 is a top view of an original test block (sheet) according to an embodiment of the present invention;
FIG. 2 is a top view of the proof mass of the embodiment of FIG. 1;
FIG. 3 is a schematic diagram illustrating the location of an artificial defect in the embodiment of FIG. 2;
FIG. 4 is a perspective view of an original test block (tubing) according to an embodiment of the present invention;
FIG. 5 is a front view of a sixth block;
FIG. 6 is a front view of a seventh block;
FIG. 7 is a front view of an eighth block;
fig. 8 is a front view of the ninth block.
In FIGS. 1-8:
1', original test block; 1. verifying the test block; 11. a first test block; 111. a first defect; 12. a second test block; 121. a second defect; 13. a third test block; 131. a third defect; 14. a fourth test block; 141. a fourth defect; 15. a fifth test block; 151. a fifth defect; 16. a sixth test block; 161. a sixth defect; 17. a seventh test block; 171. a seventh defect; 18. an eighth test block; 181. an eighth defect; 19. a ninth test block; 191. a ninth defect; 100. welding seams; 200. cutting the line.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Furthermore, in the description of the present invention, unless explicitly stated or limited otherwise, 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 or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1, fig. 2 and fig. 4, the method for manufacturing the verification test block of the phased array ultrasonic testing process of the weld joint of the present embodiment includes the following steps:
s1, cutting an original test block 1' along a cutting line 200 to obtain a mother test block and a plurality of child test blocks separated from the mother test block;
s2, arranging artificial defects on different parts of the plurality of sub-test blocks, wherein the artificial defects extend from the surfaces of the sub-test blocks to the insides of the sub-test blocks;
and S3, reassembling the plurality of child test blocks onto the parent test block to obtain the verification test block 1.
According to the manufacturing method of the test block for the phased array ultrasonic flaw detection process verification of the welding line, the artificial defects are arranged at different positions of the plurality of sub-test blocks, so that the detection capability of the flaw detection process on various types of defects can be verified, the strong detection capability on the defects of volume type or area type is ensured during actual flaw detection, and the condition of missed detection is avoided. The artificial defects in this embodiment are all area defects, and in general, if the area defects can be detected, the volume defects can be detected.
As shown in fig. 1 and 2, preferably, when the original test block 1 'is a plate, the cutting direction of the original test block 1' is perpendicular to the weld 100, so that the cutting operation is facilitated, and the obtained sub-test blocks can be relatively quickly spliced into a whole again after the artificial defect setting is completed to obtain the verification test block 1.
Further, the number of the sub-test blocks is five, which are respectively a first test block 11, a second test block 12, a third test block 13, a fourth test block 14 and a fifth test block 15. Because each sub-test block is provided with one type of artificial defect, the number of the sub-test blocks is not too small, the defect types which can be simulated by the too small number of the sub-test blocks are also less, the number of the sub-test blocks is not too large, the difference between the artificial defects is too small due to the too many sub-test blocks, and the distinguishing difficulty is higher.
As shown in fig. 3, specifically, the first test block 11, the second test block 12, the third test block 13, the fourth test block 14 and the fifth test block 15 are respectively provided with a first defect 111, a second defect 121, a third defect 131, a fourth defect 141 and a fifth defect 151, the first defect 111, the second defect 121 and the third defect 131 are all arranged along the bevel for simulating the defect that the bevel is not fused, the fourth defect 141 and the fifth defect 151 are arranged in the heat affected zone and are respectively arranged on the upper and lower surfaces of the sub-test blocks for simulating the defect of the crack at the toe end, so that the overall defect detection capability of the flaw detection process in the range of the weld 100 and the heat affected zone adjacent to the weld 100 can be verified. In this embodiment, the artificial defects are formed by adopting a linear cutting machining mode, the machining speed is high, the deformation degree of each sub-test block is very small, and the follow-up re-splicing is convenient.
Further, the first defect 111 and the second defect 121 are arranged on the grooves on the same side and are spaced from each other, the third defect 131 is arranged on the grooves on the other side, the first defect 111 is arranged above the grooves, the second defect 121 is arranged below the grooves, and the third defect 131 extends from the surface of the sub-test block to the middle of the grooves. The first defect 111, the second defect 121 and the third defect 131 do not cause the division of the respective sub-test blocks, so that the first test block 11, the second test block 12 and the third test block 13 can keep integrity, and the sub-test blocks are prevented from being deformed due to secondary welding, thereby preventing the sub-test blocks from being spliced again.
As shown in fig. 4, preferably, the original test block 1 'is a tube, the cutting of the original test block 1' is performed along a cutting line 200, the cutting line 200 is perpendicular to the welding seam 100, and the plurality of sub test blocks are strips with arc-shaped cross sections and are distributed on the mother test block at equal intervals. Each sub-block is sampled from the scattered positions on the weld joint 100, so that the defect condition of the weld joint 100 can be reflected more accurately.
As shown in fig. 5 to 8, the number of the sub-blocks is preferably four, and the sub-blocks are a sixth block 16, a seventh block 17, an eighth block 18, and a ninth block 19. According to the diameter of the original test block 1', the number of the sub-test blocks can be selected according to actual needs, but the number of the sub-test blocks is generally not less than three.
Furthermore, a sixth test block 16, a seventh test block 17, an eighth test block 18 and a ninth test block 19 are respectively provided with a sixth defect 161, a seventh defect 171, an eighth defect 181 and a ninth defect 191, the sixth defect 161 and the seventh defect 171 are arranged at two ends of the groove on the same side and used for simulating the defect that the groove is not fused, the eighth defect 181 is arranged on the surface of the welding seam 100 and used for simulating the defect of surface crack, and the ninth defect 191 is arranged in the heat affected zone and used for simulating the defect of toe end crack. Thereby, the overall defect detection capability of the flaw detection process in the weld 100 and the heat affected zone adjacent to the weld 100 can be verified.
Further, the plurality of child test blocks and the parent test block are fixed in a spot welding mode to obtain the verification test block 1. Due to the shape limitation of the pipe, the sub test blocks can not be directly spliced to obtain the verification test block 1 like a plate, so that the spot welding fixing mode is selected, the position far away from the welding line 100 is selected for spot welding, and the interference to the artificial defect is avoided.
Preferably, the sub-blocks are identical in shape and size, so that cutting and re-assembly are facilitated.
Reference throughout this specification to the description of the terms "preferred," "further," or the like, as used in describing preferred embodiments of the present invention, means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above examples are only intended to illustrate the details of the invention, which is not limited to the above details, i.e. it is not intended that the invention must be implemented in such detail. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (10)
1. A manufacturing method of a verification test block of a welding line phased array ultrasonic flaw detection process is characterized by comprising the following steps:
s1, cutting an original test block to obtain a mother test block and a plurality of child test blocks separated from the mother test block;
s2, arranging artificial defects on different parts of the sub-test blocks, wherein the artificial defects extend from the surfaces of the sub-test blocks to the insides of the sub-test blocks;
and S3, reassembling the plurality of the child test blocks onto the mother test block to obtain the verification test block.
2. The method of claim 1, wherein the original test block is a plate material and the cutting direction of the original test block is perpendicular to the weld.
3. The method for manufacturing the verification test block of the phased array ultrasonic flaw detection process of the welding seam according to claim 2, wherein the number of the sub-test blocks is five, and the sub-test blocks are respectively a first test block, a second test block, a third test block, a fourth test block and a fifth test block.
4. The method for manufacturing the verification test block of the phased array ultrasonic flaw detection process of the welding seam according to claim 3, wherein the first test block, the second test block, the third test block, the fourth test block and the fifth test block are respectively provided with a first defect, a second defect, a third defect, a fourth defect and a fifth defect, the first defect, the second defect and the third defect are all arranged along a groove, and the fourth defect and the fifth defect are arranged in a heat affected zone and are respectively arranged on the upper surface and the lower surface of the sub-test block.
5. The method for manufacturing the verification test block of the welding seam phased array ultrasonic flaw detection process according to claim 4, wherein the first flaw and the second flaw are arranged on the groove on the same side and are spaced from each other, the third flaw is arranged on the groove on the other side, the first flaw is arranged above the groove, the second flaw is arranged below the groove, and the third flaw extends from the surface of the sub-test block to the middle of the groove.
6. The method for manufacturing the verification test block for the phased array ultrasonic flaw detection process of the welding seam according to claim 1, wherein the original test block is a pipe, the cutting direction of the original test block is perpendicular to the welding seam, and the plurality of the sub test blocks are strips with arc-shaped sections and are distributed on the mother test block at equal intervals.
7. The method for manufacturing the verification test block of the phased array ultrasonic flaw detection process of the welding seam according to claim 6, wherein the number of the sub-test blocks is four, and the four sub-test blocks are respectively a sixth test block, a seventh test block, an eighth test block and a ninth test block.
8. The method for manufacturing the verification test block of the phased array ultrasonic flaw detection process of the welding seam according to claim 7, wherein a sixth defect, a seventh defect, an eighth defect and a ninth defect are respectively arranged on the sixth test block, the seventh test block, the eighth test block and the ninth test block, the sixth defect and the seventh defect are arranged at two ends of a groove on the same side, the eighth defect is arranged on the surface of the welding seam, and the ninth defect is arranged in a heat affected zone.
9. The method for manufacturing the verification test block of the welding seam phased array ultrasonic flaw detection process according to claim 6, wherein the verification test block is obtained after a plurality of the child test blocks and the mother test block are fixed by spot welding.
10. The method for manufacturing the phased array ultrasonic testing process verification test block of the welding seam according to any one of the claims 1 to 9, wherein the shape and the size of a plurality of the sub test blocks are the same.
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| CN201911047914.2A CN110632185A (en) | 2019-10-30 | 2019-10-30 | Manufacturing method of verification test block for welding seam phased array ultrasonic flaw detection process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113607811A (en) * | 2021-07-16 | 2021-11-05 | 华北电力科学研究院有限责任公司 | Phased array ultrasonic detection test block and detection method for copper-aluminum transition wire clamp in butt joint through flash welding |
| CN113607812A (en) * | 2021-07-16 | 2021-11-05 | 华北电力科学研究院有限责任公司 | Phased array ultrasonic detection test block structure and detection method for brazing type copper-aluminum transition wire clamp |
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