Ultrasonic phased array scanning speed detection test block

Abstract

The utility model provides an ultrasonic phased array scanning speed detection test block which comprises a bottom surface, a detection surface and artificial hole defects, the bottom surface is arranged at the bottom of the test block and is arranged on a horizontal plane, a plurality of groups of artificial hole defects with specific sizes and specific quantity are formed in the lower part of the side wall of the test block in an array manner, and the detection surface is arranged at the top of the test block; scanning a detection surface through a probe connected with a phased array instrument, scanning each group of artificial hole defects on the test block at a scanning speed to be verified, and recording a scanning reflected wave, so as to judge whether the scanning speed meets a standard requirement or not. The device is simple in structure and easy and convenient to operate, and effectively improves the detection work efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the device of ultrasonic nondestructive testing technology field of ship and other steel structure weld, especially relates to a kind of ultrasonic phased array scanning speed test block. BACKGROUND

[0002] Ship, pressure vessel, steel workpiece and other steel structure welds use ultrasonic nondestructive testing method to detect internal quality, which includes ultrasonic phased array detection technology. Ultrasonic phased array imaging technology controls the time delay of each array element excitation (or reception) pulse in array transducer, changes the phase relationship when the sound waves emitted (or received) by each array element reach (or come from) a point in the object, realizes the change of focusing point and sound beam orientation, thereby completes phased array beam synthesis, forms imaging scan line technology, which can give A-type, B-type, C-type, P-type and 3D scanning imaging.

[0003] So far, ultrasonic phased array imaging technology has a development history of nearly 20 years. Initially, it was limited in industrial nondestructive testing due to system complexity, complexity of ultrasonic wave propagation in solid and high cost. The technology was mainly applied in medical field at the beginning. With the rapid development of electronic technology and computer technology, it is gradually applied in industrial nondestructive testing and begins to be widely used in ship and pressure vessel field.

[0004] Ultrasonic phased array detection requires fast data acquisition and storage function. Each phased array industry standard has requirements for scanning speed of instrument and probe combination, but there is no specific test device, so it is impossible to test and verify whether the actual scanning speed of the instrument meets the detection requirements and whether the collected data is effective. Therefore, how to determine the maximum scanning speed of the detection instrument under certain detection conditions has become a problem to be solved. UTILITY MODEL CONTENTS

[0005] In order to determine whether the maximum scanning speed of ultrasonic phased array detection meets the standard requirements, the utility model provides an ultrasonic phased array scanning speed test block. The device opens a plurality of artificial hole defects with specific size and specific number at specific positions in array, so that ultrasonic phased array detection can be carried out on parts made of the same material as the device under different detection resolutions, and whether the scanning speed meets the standard requirements is determined, thereby solving the technical problem of lack of standard test device in phased array detection industry.

[0006] The utility model adopts the following solutions to solve the technical problems:

[0007] An ultrasonic phased array scanning speed detection test block is a half-cylinder structure with a bottom flattened, comprising a bottom surface arranged at the bottom of the test block, arranged on a horizontal plane, used to provide support; a detection surface arranged at the top of the test block, used to provide a working position for a probe; artificial hole defects arranged in six rows in the lower part of the side wall of the test block, and each hole has a diameter of 1mm.

[0008] The artificial hole defects disclosed in the embodiment have a first row with an angle of 60° with the horizontal plane from bottom to top, and the distribution interval of each row in the circumferential direction decreases by 5° in turn, the angles of the second row to the sixth row with the horizontal plane are 55°, 50°, 45°, 40° and 35° respectively, and the central axes of the six rows of artificial hole defects converge at one point.

[0009] The artificial hole defects disclosed in the embodiment comprise a first group arranged in two columns in the vertical direction with a column interval of 1mm; a second group arranged on the left side of the first group, arranged in two columns in the vertical direction with a column interval of 2mm; a third group arranged on the left side of the second group, arranged in two columns in the vertical direction with a column interval of 3mm; a fourth group arranged on the left side of the third group, arranged in two columns in the vertical direction with a column interval of 4mm; a fifth group arranged on the left side of the fourth group, arranged in two columns in the vertical direction with a column interval of 5mm; and a sixth group arranged on the left side of the fifth group, arranged in two columns in the vertical direction with a column interval of 6mm; wherein the distance between each group of artificial hole defects is the same.

[0010] Positive effects:

[0011] The utility model discloses a plurality of groups of artificial hole defects of specific size and specific quantity are arrayed in the lower part of the side wall of the test block, and a detection surface is arranged at the top of the test block. The probe connected with the phased array instrument scans the detection surface, each group of artificial hole defects on the test block is scanned by using the scanning speed of the test block, and the scanning reflected wave is recorded to determine whether the scanning speed meets the standard requirements. The device has simple structure, simple and convenient operation, and effectively improves the detection efficiency. It is suitable to be used as an ultrasonic phased array scanning speed detection test block. ACCURACY

[0012] Figure 1 It is a structural schematic diagram of the embodiment of the application;

[0013] Figure 2 It is a front view of the embodiment of the application;

[0014] Figure 3 It is a side view of the embodiment of the application.

[0015] In the drawings,

[0016] 10. bottom surface; 20. detection surface;

[0017] 30. Artificial hole defect,

[0018] 31. First group, 32. Second group, 33. Third group,

[0019] 34. Fourth group, 35. Fifth group, 36. Sixth group. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0021] As shown in the figure, an ultrasonic phased array scanning speed detection test block is a semicylindrical structure with a bottom flattened, comprising:

[0022] A bottom surface 10 is arranged at the bottom of the test block and is arranged on a horizontal plane to provide support; a detection surface 20 is arranged at the top of the test block to provide a working position for a probe; and artificial hole defects 30 are arranged in six rows at the lower part of the sidewall of the test block, and the diameter of each hole is 1mm.

[0023] Specifically, the bottom surface 10 is arranged at the bottom flattened part of the test block and is designed in a rectangular shape. In the use process, the bottom surface 10 is arranged on a horizontal operation table, so as to ensure that the test block is stably placed on the horizontal operation table and facilitate the operation of the detection personnel. The detection surface 20 is arranged at the top large plane of the test block. In the use process, the detection probe is placed on the detection surface 20, and a coupling agent is added between the detection probe and the detection surface 20, so as to improve the detection efficiency. The artificial hole defects 30 are arranged in six rows in the form of columnar holes along the length direction of the test block at the lower part of the arc-shaped sidewall of the test block, and the diameter of each hole is 1mm, which is used to provide a target for ultrasonic phased array scanning.

[0024] The included angle between the first row of the artificial hole defects 30 from bottom to top and the horizontal plane is 60°, and the distribution interval of each row along the circumferential direction decreases by 5° in turn. The included angles between the second row to the sixth row and the horizontal plane are 55°, 50°, 45°, 40° and 35° respectively, and the central axes of the six rows of artificial hole defects 30 converge at one point.

[0025] Specifically, the artificial hole defects 30 are arranged in six rows, the central axes of each row converge at a point, and the distribution interval along the circumferential direction is 5°, and the included angles between the first row to the sixth row and the horizontal plane are 60°, 55°, 50°, 45°, 40° and 35° respectively.

[0026] The artificial hole defects 30 include a first group 31 arranged in two columns in the vertical direction with a column interval of 1mm, a second group 32 arranged on the left side of the first group 31 and arranged in two columns in the vertical direction with a column interval of 2mm, a third group 33 arranged on the left side of the second group 32 and arranged in two columns in the vertical direction with a column interval of 3mm, a fourth group 34 arranged on the left side of the third group 33 and arranged in two columns in the vertical direction with a column interval of 4mm, a fifth group 35 arranged on the left side of the fourth group 34 and arranged in two columns in the vertical direction with a column interval of 5mm, and a sixth group 36 arranged on the left side of the fifth group 35 and arranged in two columns in the vertical direction with a column interval of 6mm, wherein the distance between each group of the artificial hole defects 30 is the same.

[0027] Specifically, the artificial hole defects 30 are arranged in two columns per group, a total of twelve columns, arranged in six groups, and the distance between each group is the same fixed value; the first group 31 to the sixth group 36 are arranged in the horizontal direction in turn, and the column interval between the two columns in each group increases in turn, the column interval of the first column is 1mm, the column interval of the second column is 2mm, the column interval of the third column is 3mm, the column interval of the fourth column is 4mm, the column interval of the fifth column is 5mm, and the column interval of the sixth column is 6mm.

[0028] The use method of the utility model:

[0029] Step 1. Connect the phased array instrument to be used with the detection probe, and calibrate the instrument according to the requirements of the use specification;

[0030] Step 2. Set the detection parameters of the instrument, such as probe frequency, wafer quantity, excitation wafer quantity, focusing rule, used repetition frequency, sound velocity, scanning step value, etc.;

[0031] Step 3. Calibrate the sensitivity of the detection instrument by using a special sensitivity test block;

[0032] Step 4. Attach the probe to the detection surface 20, scan each group of artificial hole defects 30 on the test block at the scanning speed to be verified, and record the scanning reflected wave;

[0033] Step 5. If all six groups of artificial hole defects 30 can be detected, it can be determined that the scanning speed to be used is effective;

[0034] Step 6. Repeat steps 2-5 to obtain the maximum scanning speed of the detection instrument under certain detection conditions.

[0035] Features of this utility model:

[0036] The present invention features multiple groups of artificial hole defects 30 of specific sizes and numbers arranged in an array on the lower sidewall of a test block, and a detection surface 20 positioned on the top of the test block. During actual use, a probe connected to a phased array instrument scans the detection surface 20, scanning each group of artificial hole defects 30 on the test block at the intended scanning speed. The scan reflections are recorded to determine whether the scanning speed meets standard requirements. This technical solution effectively addresses the lack of standard testing equipment in the phased array testing industry. Furthermore, the device features a simple structure and easy and convenient operation, effectively improving testing efficiency.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultrasonic phased array scanning velocity detection test block, having a semi-cylindrical structure with a flattened bottom, characterized by: A bottom surface (10) is provided at the bottom of the test block and arranged on a horizontal surface for providing support; A detection surface (20) is provided on the top of the test block and is used to provide a working position for the probe; Artificial hole defects (30) are opened at the lower part of the side wall of the test block and arranged in six rows. The diameter of each hole is 1 mm.

2. The ultrasonic phased array scanning velocity detection test block according to claim 1, characterized in that: The angle between the first row of the artificial hole defects (30) and the horizontal plane from bottom to top is 60°, and the spacing of each row along the circumferential direction decreases by 5°. The angles between the second row to the sixth row and the horizontal plane are 55°, 50°, 45°, 40°, and 35°, respectively. The central axes of the six rows of artificial hole defects (30) converge at one point.

3. The ultrasonic phased array scanning velocity detection test block according to claim 1, characterized in that: The artificial hole defect (30) includes, The first group (31) is arranged in two rows along the vertical direction, with a hole spacing of 1 mm between rows; The second group (32) is arranged on the left side of the first group (31), and is arranged in two rows along the vertical direction, with a hole spacing of 2 mm between rows; The third group (33) is arranged on the left side of the second group (32), and is arranged in two rows along the vertical direction, with a hole spacing of 3 mm between rows; The fourth group (34) is arranged on the left side of the third group (33), and is arranged in two rows along the vertical direction, with a hole spacing of 4 mm between rows; The fifth group (35) is arranged on the left side of the fourth group (34), and is arranged in two rows along the vertical direction, with a hole spacing of 5 mm between rows; The sixth group (36) is arranged on the left side of the fifth group (35), and is arranged in two rows along the vertical direction, with a hole spacing of 6 mm between rows; The distances between each group of artificial hole defects (30) are the same.

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