Verification test block for round ingot casting ultrasonic water immersion inspection system

Abstract

The invention discloses a verification test block for a round ingot ultrasonic water immersion inspection system, which comprises a test block main body, a plurality of flat-bottomed holes a are arranged below the test block main body, a plurality of flat-bottomed holes b and a plurality of flat-bottomed holes c are respectively arranged on the surface of the test block main body, the flat-bottomed holes b and the flat-bottomed holes c are respectively arranged on two sides of the flat-bottomed holes a, flat-bottomed holes d are respectively arranged on two ends of the test block main body, and the flat-bottomed holes d are respectively arranged on two sides of the flat-bottomed holes a. The flat-bottomed hole b and the flat-bottomed hole c are both located between the flat-bottomed hole a and the flat-bottomed hole d. The test block has the advantages that the flat-bottom holes b and the flat-bottom holes c are formed in the surface of the test block body, meanwhile, the flat-bottom holes b and the flat-bottom holes c are located in the two sides of the flat-bottom hole a respectively, and therefore the test block is used for verifying the reliability of circumferential full-range inspection of the round cast ingot; therefore, the effectiveness of the end blind area defect is verified.

Description

Technical Field

[0001] The invention relates to the technical field of industrial nondestructive testing, in particular to a verification test block for a round ingot ultrasonic water immersion testing system. Background Art

[0002] The internal quality of aluminum alloy round ingots is an important factor affecting the quality and performance of its downstream process products. At present, the internal quality control of round ingots is mostly carried out by manual contact ultrasonic non-destructive testing. Due to the poor surface roughness of the ingots, large volume, large ultrasonic inspection range, coarse internal grains, large acoustic attenuation, and low signal-to-noise ratio, it is impossible to ensure 100% inspection of the inspected samples, and the full range of the sound beam cannot be covered by the round ingots. The inspection result data cannot be reproduced and traced. The inspection results are greatly affected by the operator's experience and professional quality, the inspection efficiency is low, and it is easy to miss inspection accidents. Therefore, it is difficult to use manual contact ultrasonic to conduct full-range inspection of aluminum alloy ingots, and the reliability of the inspection results is poor; and the applied coupling agents such as paste, engine oil, glycerin, calcium-based lubricating oil and other materials need to be removed after inspection, which also increases the labor intensity of the operator and pollutes the environment.

[0003] With the improvement of industrial technology levels at home and abroad and the advent of the Industrial 4.0 era, multi-channel ultrasonic water immersion automated inspection technology has been widely used in the field of non-destructive testing of metal materials due to its advantages such as good inspection repeatability, full-range coverage of the sound beam, graphical recording and preservation of inspection data, traceability of inspection results, high work efficiency, and low incidence of missed inspection accidents. It makes up for the shortcomings of manual contact ultrasonic inspection, can ensure the quality requirements of aluminum alloy round ingots and their products in high-precision manufacturing industries such as aerospace, defense industry, and rail transit, and can provide strong data support for casting process improvement, new product development, and quality stability.

[0004] The multi-channel ultrasonic water immersion automatic inspection system is composed of multiple probes arranged to form a probe group to achieve fast non-contact ultrasonic inspection of round ingots. Figure 1 A probe device composed of a plurality of probes; Figure 2 This is an example of how a round ingot rotates in a water tank. The probe device moves in a straight line, and the round ingot being inspected is driven by a motor to rotate in place in the water tank. Figure 3 This is a working diagram of the multi-channel ultrasonic water immersion automated inspection system. Before using the multi-channel ultrasonic water immersion automated inspection system, the probe should be moved above the round ingot comparison test block, and the following parameters of each probe should be set and debugged to the optimal state under static conditions:

[0005] ——Water course setting;

[0006] - ultrasonic beam calibration;

[0007] - Inspection scope debugging;

[0008] - Check the reference sensitivity setting;

[0009] After the static condition setting and debugging are completed, the dynamic condition parameter setting and debugging are required, that is, the linear motion speed of the probe, the rotation speed of the round ingot to be inspected, the pulse repetition frequency and other parameters, to verify the optimal state of the probe group debugging under the automatic inspection state and the correctness of the inspection parameter setting, and to verify the accuracy, effectiveness and reliability of the natural defects or known artificial defects reference reflectors (hereinafter referred to as: flat bottom holes) required for effective detection. Figure 4 The dynamic test specimen shown is used to verify the correctness of the test parameter settings under the dynamic operation state of the automatic test equipment. Flat bottom holes with different buried depths and diameters are made on the dynamic test specimen, and the positions of the flat bottom holes are arranged along the tangent of the round ingot. In order to eliminate the interference between the two flat bottom holes, there must be a certain distance between the two adjacent holes. The distance increases with the increase of the diameter of the round ingot used to make the specimen. The number, buried depth, and diameter of the flat bottom holes are determined by each manufacturer according to the actual situation, and no unified requirements have been formed.

[0010] But in Figure 4 The flat-bottom hole distribution positions of the dynamic test specimens shown cannot prove that the ultrasonic sound beam of the multi-channel ultrasonic immersion automatic inspection equipment can cover 100% of the round ingot during one inspection, nor can it prove the effectiveness and reliability of the full-range inspection and the ability to effectively detect defects in the surface blind area and the end blind area. The reason is that there are no flat-bottom holes for the upper and lower inspection blind areas on the specimen, nor are there flat-bottom holes for the two end inspection blind areas, so the inspection capabilities of the equipment for blind area defects and end blind area defects cannot be verified. Summary of the invention

[0011] The object of the present invention is to overcome the disadvantages of the prior art and provide a verification test block for a round ingot ultrasonic water immersion inspection system.

[0012] The objective of the present invention is achieved through the following technical scheme: a verification test block for a round ingot ultrasonic water immersion inspection system, comprising a test block body, a plurality of flat-bottom holes a are opened at the bottom of the test block body, a plurality of flat-bottom holes b and flat-bottom holes c are opened on the surface of the test block body, and the flat-bottom holes b and the flat-bottom holes c are respectively located on both sides of the flat-bottom hole a, flat-bottom holes d are opened at both ends of the test block body, and the flat-bottom holes b and the flat-bottom holes c are both located between the flat-bottom holes a and the flat-bottom holes d.

[0013] Preferably, there are five flat-bottom holes a, and the intervals between the flat-bottom holes a are 50 mm, and the depth of the flat-bottom holes a is 12 mm.

[0014] Preferably, there are four flat-bottom holes b, and the flat-bottom holes b are distributed in a circle, the angle between adjacent flat-bottom holes b is 45°, one of the flat-bottom holes b is located on the plane where the upper surface of the test block body is located, and the hole depths of the flat-bottom holes b are 6 mm, 10 mm, 16 mm and 20 mm respectively.

[0015] Preferably, there are four flat-bottom holes c, and the flat-bottom holes c are distributed in a circle, the angle between adjacent flat-bottom holes c is 45°, one of the flat-bottom holes c is located on the plane where the lower surface of the test block body is located, and the hole depths of the flat-bottom holes c are 6 mm, 10 mm, 16 mm and 20 mm respectively.

[0016] Preferably, the flat-bottom hole b and the flat-bottom hole c are located on two side surfaces of the test block body.

[0017] Preferably, the flat-bottom hole d is 10 mm away from both ends of the test block body, and the hole depth of the flat-bottom hole d is 12 mm.

[0018] Preferably, the test block body is made of the same material as the round ingot being tested.

[0019] The present invention has the following advantages:

[0020] 1. The present invention provides a plurality of flat-bottom holes b and flat-bottom holes c on the surface of the test block body, and the flat-bottom holes b and the flat-bottom holes c are respectively located on both sides of the flat-bottom hole a, so as to verify the reliability of the full-range circumferential inspection of the round ingot, and provides flat-bottom holes d at both ends of the test block body, so as to verify the effectiveness of the end blind area defects.

[0021] 2. The present invention is used to verify the inspection capability of surface blind area defects by arranging one of the flat-bottom holes b on the plane where the upper surface of the test block body is located and one of the flat-bottom holes c on the plane where the lower surface of the test block body is located. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a probe device composed of multiple probes;

[0023] Figure 2 It is a structural schematic diagram of the way a round ingot rotates in a water tank;

[0024] Figure 3 It is a structural schematic diagram of the multi-channel ultrasonic water immersion automatic inspection system when it is working;

[0025] Figure 4 It is a structural schematic diagram of the existing verification test block;

[0026] Figure 5 Schematic diagram of the structure of the verification test block;

[0027] Figure 6 To verify the schematic diagram of the structure of the test block from the top view;

[0028] Figure 7 It is a structural schematic diagram of the distribution of flat bottom holes a, flat bottom holes b, flat bottom holes c and flat bottom holes d on the main body of the test block;

[0029] In the figure, 1-test block body, 2-flat bottom hole a, 3-flat bottom hole b, 4-flat bottom hole c, 5-flat bottom hole d. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In this embodiment, if Figure 5 and Figure 6 As shown, a verification test block for a round ingot ultrasonic water immersion inspection system includes a test block body 1. Preferably, the test block body 1 is made of the same material as the round ingot to be inspected. A plurality of flat-bottom holes a2 are provided below the test block body 1, and a plurality of flat-bottom holes b3 and flat-bottom holes c4 are provided on the surface of the test block body 1, and the flat-bottom holes b3 and the flat-bottom holes c4 are respectively located on both sides of the flat-bottom hole a2. A flat-bottom hole d5 is provided at both ends of the test block body 1, and the flat-bottom holes b3 and the flat-bottom holes c4 are both located between the flat-bottom holes a2 and the flat-bottom holes d5. By providing a plurality of flat-bottom holes b3 and flat-bottom holes c4 on the surface of the test block body 1, and making the flat-bottom holes b3 and the flat-bottom holes c4 respectively located on both sides of the flat-bottom hole a2, the reliability of the circumferential full-range inspection of the round ingot is verified, and a flat-bottom hole d5 is provided at both ends of the test block body 1, so as to verify the effectiveness of the end blind area defects. In this embodiment, the standard of the test block body 1 is that there are no natural defects in the area where the flat-bottom hole is opened, the surface of the test block body 1 is smooth and continuous without surface defects, and the surface roughness of the test block body 1 is the same as that of the round ingot to be tested. The geometric dimensions of the test block body 1 used here are φ254mm (diameter) × 950mm (length), and it is made of aluminum alloy.

[0037] Further, such as Figure 7 As shown, there are five flat bottom holes a2, and the spacing between the flat bottom holes a2 is 50 mm, and the hole depth of the flat bottom holes a2 is 12 mm. Specifically, the flat bottom holes a2 correspond to Figure 7 The flat-bottom holes a2 are numbered 1# to 5# and are distributed at intervals of 50 mm along the tangent direction. Their function is to verify the ability to detect internal defects of the material.

[0038] In this embodiment, there are four flat-bottom holes b3, and the flat-bottom holes b3 are distributed in a circle, the angle between adjacent flat-bottom holes b3 is 45°, one of the flat-bottom holes b3 is located on the plane where the upper surface of the test block body 1 is located, and the hole depths of the flat-bottom holes b3 are 6mm, 10mm, 16mm and 20mm respectively. Further, there are four flat-bottom holes c4, and the flat-bottom holes c4 are distributed in a circle, the angle between adjacent flat-bottom holes c4 is 45°, one of the flat-bottom holes c4 is located on the plane where the lower surface of the test block body 1 is located, and the hole depths of the flat-bottom holes c4 are 6mm, 10mm, 16mm and 20mm respectively. Further, the flat-bottom holes b3 and the flat-bottom holes c4 are located on both side surfaces of the test block body 1. Specifically, the flat-bottom holes b3 correspond to Figure 7 The number 8# to 11#, among which the flat bottom hole b3 of number 8# is located on the plane where the upper surface of the test block body 1 is located, and its hole depth is 6mm, the hole depth of the flat bottom hole b3 of number 9# is 10mm, the hole depth of the flat bottom hole b3 of number 10# is 16mm, and the hole depth of the flat bottom hole b3 of number 11# is 20mm; the flat bottom hole c4 corresponds to Figure 7 The numbered holes 12# to 15# in the test block are as follows: the flat bottom hole c4 of numbered 12# is located on the plane of the lower surface of the test block body 1, and its hole depth is 6mm; the hole depth of the flat bottom hole c4 of numbered 13# is 10mm; the hole depth of the flat bottom hole c4 of numbered 14# is 16mm; and the hole depth of the flat bottom hole c4 of numbered 15# is 20mm. The flat bottom holes b3 of numbered 8# and the flat bottom holes c4 of numbered 12# are used to verify the inspection capability of surface blind area defects, and the remaining flat bottom holes b3 and flat bottom holes c4 are used to verify the reliability of the full range inspection of the circumference of the round ingot. In this embodiment, in order to avoid mutual influence of the flat-bottom hole ultrasonic reflection signals in the cross section where the flat-bottom hole b3 and the flat-bottom hole c4 are located, the depths of the flat-bottom hole b3 and the flat-bottom hole c4 are not greater than 25 mm. At the same time, in order to avoid the influence of the opposite flat-bottom hole ultrasonic reflection signals, the flat-bottom hole b3 and the flat-bottom hole c4 are respectively arranged on both sides of the flat-bottom hole a2, that is, the flat-bottom hole b3 and the flat-bottom hole c4 are respectively distributed in two cross sections, so as to verify the effectiveness of the full-range inspection in the circumferential direction and the surface blind area inspection.

[0039] In this embodiment, the flat bottom hole d5 is 10 mm away from both ends of the test block body 1, and the hole depth of the flat bottom hole d5 is 12 mm. Specifically, the flat bottom hole d5 corresponds to Figure 7 Numbers 6# and 7# are used to verify the effectiveness of the end blind area defects.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A verification test block for a round ingot ultrasonic water immersion inspection system, characterized in that: The invention comprises a test block body (1), wherein a plurality of flat bottom holes a (2) are provided at the bottom of the test block body (1), and a plurality of flat bottom holes b (3) and flat bottom holes c (4) are provided on the surface of the test block body (1), and the flat bottom holes b (3) and the flat bottom holes c (4) are respectively located on both sides of the flat bottom hole a (2), and a flat bottom hole d (5) is provided at both ends of the test block body (1), and the flat bottom holes b (3) and the flat bottom holes c (4) are both located between the flat bottom hole a (2) and the flat bottom hole d (5).

2. The verification test block for the round ingot ultrasonic water immersion inspection system according to claim 1, characterized in that: There are five flat-bottom holes a(2), and the spacing between the flat-bottom holes a(2) is 50 mm. The depth of the flat-bottom holes a(2) is 12 mm.

3. The verification test block for the round ingot ultrasonic water immersion inspection system according to claim 2, characterized in that: There are four flat-bottom holes b (3), and the flat-bottom holes b (3) are distributed in a circular pattern. The angle between adjacent flat-bottom holes b (3) is 45°. One of the flat-bottom holes b (3) is located on the plane where the upper surface of the test block body (1) is located. The hole depths of the flat-bottom holes b (3) are 6 mm, 10 mm, 16 mm and 20 mm respectively.

4. The verification test block for the round ingot ultrasonic water immersion inspection system according to claim 3, characterized in that: There are four flat-bottom holes c (4), and the flat-bottom holes c (4) are distributed in a circular pattern. The angle between adjacent flat-bottom holes c (4) is 45°. One of the flat-bottom holes c (4) is located on the plane where the lower surface of the test block body (1) is located. The hole depths of the flat-bottom holes c (4) are 6 mm, 10 mm, 16 mm and 20 mm respectively.

5. The verification test block for the round ingot ultrasonic water immersion inspection system according to claim 4, characterized in that: The flat bottom hole b (3) and the flat bottom hole c (4) are located on two side surfaces of the test block body (1).

6. The verification test block for the round ingot ultrasonic water immersion inspection system according to claim 5, characterized in that: The flat bottom hole d (5) is 10 mm away from both ends of the test block body (1), and the hole depth of the flat bottom hole d (5) is 12 mm.

7. The verification test block for the round ingot ultrasonic water immersion inspection system according to claim 6, characterized in that: The test block body (1) is made of the same material as the round ingot to be tested.

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