Permeate sensitivity comparison detection device

Abstract

The present application relates to the permeation detection material sensitivity test device, disclose a kind of permeation liquid sensitivity contrast detection device, containing slider (3), sleeve (4), the sleeve (4) is set in the outside of the slider (3), and at least two detection grooves for comparing the permeation liquid sensitivity between the inner surface of the sleeve (4) and the outer surface of the slider (3) are equipped, the slider (3) outer surface is equipped with the through slot (7) for observing the permeation speed of the permeation liquid.The permeation liquid sensitivity contrast detection device is relatively simple to make, repeatedly used multiple times, can guarantee the precision of contrast detection, and can accurately and efficiently draw comparison conclusion by directly observing the permeation condition.

Description

Technical Field

[0001] This invention relates to a permeate detection material sensitivity testing device, specifically, to a permeate sensitivity comparison testing device. Background Technology

[0002] Because penetrant testing involves numerous industries, and different industries have different standards for penetrant testing, current technologies commonly use Type II reference blocks from standards ISO 3452-3 and GB / T 18851.3, as well as Type A, Type B, and Type C blocks from standard JB / T 6064 for testing penetrant materials. The Type B block and the Type II reference block, because their testing surfaces are not separated, make it difficult to compare the sensitivity of different penetrant testing materials or different processing methods. Although Type A and Type C blocks can be used for comparative testing, Type A blocks exhibit poor reproducibility after repeated use; Type C blocks are more difficult to manufacture, especially in terms of effectively controlling crack size.

[0003] Therefore, it is necessary to design a permeate sensitivity comparison detection device to overcome or alleviate the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a permeate sensitivity detection device. This permeate sensitivity comparison detection device is relatively simple to manufacture, can be reused multiple times, can ensure the accuracy of comparison detection, and can obtain comparison conclusions accurately and efficiently by directly observing the permeation situation.

[0005] To achieve the above objectives, the present invention provides a permeate sensitivity detection device comprising a slider and a sleeve, the sleeve being fitted over the outside of the slider, and at least two detection grooves for comparing permeate sensitivity are provided between the inner surface of the sleeve and the outer surface of the slider, and a through groove for observing the permeate permeation rate is provided on the outer surface of the slider.

[0006] Furthermore, the sleeve has a channel inside that matches the slider, and a limiting plate is provided above the sleeve. The slider is connected to the limiting plate via a connector.

[0007] Furthermore, the connector includes a screw that passes through the limiting plate and is threadedly connected to the slider.

[0008] Furthermore, the gap between the slider and the channel is a detection groove for comparing the sensitivity of the permeate, and the size of the detection groove is set according to the sensitivity of the permeate to be tested.

[0009] Furthermore, the limiting plate is provided with a through hole, the diameter of which is the same as the diameter of the screw.

[0010] Furthermore, the through hole is coaxial with the channel.

[0011] Furthermore, the outer surface of the screw head is provided with anti-slip texture.

[0012] Furthermore, the slider has a chamfer at the edge of the end with the internal thread.

[0013] Furthermore, the through slot is disposed between adjacent detection slots.

[0014] Furthermore, the upper edge of the channel is chamfered.

[0015] The beneficial effects of the present invention through the above technical solution are as follows:

[0016] This invention provides a permeate sensitivity comparison and detection device, comprising a slider and a sleeve. The sleeve is fitted over the slider, and at least two detection grooves for comparing permeate sensitivity are provided between the inner surface of the sleeve and the outer surface of the slider. The outer surface of the slider is provided with a through groove for observing the permeate permeation rate. This invention abandons the test block used in traditional permeate material testing, adopting a detachable structure. By providing detection grooves for comparing the sensitivity of different permeates, it completes the comparative detection of different permeate sensitivities. Even after repeated use, the accuracy of the comparative detection can be maintained. Comparative conclusions can be obtained accurately and efficiently by directly observing the permeation situation, and the device is relatively simple to manufacture.

[0017] This permeate sensitivity comparison testing device uses a threaded connection to confine the slider within the sleeve, facilitating the installation, disassembly, and transport of the entire device. It also effectively avoids the problem of increased test tank size caused by stress input during use (such as collisions or drops). Because the threaded connection allows for easy disassembly, the slider is easy to clean after separation from the sleeve, preventing the accumulation of permeate testing agent. Since the size of the test tank is manually set, it can be precisely controlled. Furthermore, this device is simple to operate and easy to maintain. Direct observation reduces the influence of other factors on the test results, ensuring the reliability of the test conclusions.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is an isometric side view of the permeate sensitivity detection device of the present invention;

[0021] Figure 2 This is a bottom view of the permeate sensitivity detection device of the present invention;

[0022] Figure 3 This is a cross-sectional view of the permeate sensitivity detection device of the present invention.

[0023] Explanation of reference numerals in the attached figures

[0024] 1 screw 2 limit plate

[0025] 3 sliders and 4 sleeves

[0026] 5 channels, 6 through holes

[0027] 7 through slots Detailed Implementation

[0028] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "lay out," "fit," and "connect" should be interpreted broadly. For example, a connection can be a direct connection or an indirect connection through an intermediate medium; it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate connector; it can be a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise stated, directional terms such as "upper" and "lower" are defined as the upper and lower of the corresponding components. Specifically, in the accompanying drawings provided by this invention, the orientation or positional relationship used is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; the directional terms of this invention should be understood in conjunction with the actual installation state.

[0031] refer to Figure 1 , Figure 2 , Figure 3 The present invention provides a permeate sensitivity detection device comprising a slider 3 and a sleeve 4. The sleeve 4 is sleeved on the outside of the slider 3, and at least two detection grooves for comparing permeate sensitivity are provided between the inner surface of the sleeve 4 and the outer surface of the slider 3. The outer surface of the slider 3 is provided with a through groove 7 for observing the permeate permeation rate.

[0032] Specifically, the through groove 7 is arranged between adjacent test grooves, so that each test groove is spaced apart. After the test permeate is applied to different test grooves, the sensitivity of the permeate is compared by directly observing the test grooves. The slider 3 can move freely inside the sleeve 4. During the permeate sensitivity comparison test, the slider 3 is placed inside the sleeve 4. After the permeate sensitivity comparison test is completed, the slider 3 is removed from the sleeve 4 for cleaning. Compared with the problem of the test material remaining in the crack when cleaning the test block, the present invention provides a test groove for comparing the sensitivity of the permeate by setting a test groove between the inner surface of the sleeve 4 and the outer surface of the slider 3, which replaces the crack of the test block in the prior art. This effectively solves the problems of difficult cleaning, the impact on the reproducibility of cracks when reused, and the problem that fine cracks become less clear or even cannot be displayed after multiple cleanings.

[0033] Furthermore, the sleeve 4 has a channel 5 inside that matches the slider 3, and a limiting plate 2 is provided above the sleeve 4. The slider 3 is connected to the limiting plate 2 via a connector. There is a gap between the slider 3 and the channel 5. It should be noted that this gap is a detection groove used to detect the permeation sensitivity. It replaces the cracks on the permeation test block in the prior art and is used to detect the sensitivity of the permeate. In addition, the limiting plate 2 is provided above the sleeve 4, and the slider 3 is connected to the limiting plate 2, which facilitates the carrying of the entire device.

[0034] Specifically, the connector includes a screw 1, which passes through the limiting plate 2 and is threadedly connected to the slider 3. It should be noted that after the permeate sensitivity comparison test, the device must be cleaned. The threaded connection facilitates installation and disassembly, improving efficiency.

[0035] Specifically, the gap between slider 3 and channel 5 is the detection tank for detecting the sensitivity of the permeate. The size of the detection tank is set according to the sensitivity of the permeate to be tested. For example, if the minimum gap through which the permeate can penetrate is 10 μm, then the size of the detection tank should be greater than 10 μm to ensure that the permeate can penetrate into the detection tank. It should be noted that this invention is a permeate sensitivity comparison detection device. Therefore, the selected permeates to be tested generally have similar sensitivities, and this device further determines the relative sensitivities of different permeates. Of course, this invention can also perform comparative detection for permeates with significantly different sensitivities. In addition, the detection tank needs to ensure that at most one permeate cannot penetrate into the detection tank; that is, the permeate that cannot penetrate into the detection tank has the worst sensitivity. Furthermore, this device directly observes the permeation of the permeate in the detection tank through channel 7 to determine the relative sensitivity of the permeate, effectively avoiding the influence of the steps of cleaning, drying, and applying a permeation agent after applying the permeate to the test block in the prior art on the test results.

[0036] Furthermore, the limiting plate 2 is provided with a through hole 6, the diameter of which is the same as the diameter of the screw 1. It should be noted that the screw 1 passes through the through hole 6 and is threadedly connected to the slider 3. Because the diameter of the screw 1 is the same as the diameter of the through hole 6, the screw 1 can only move along its own axial direction. Since the slider 3 is connected to the screw 1, it can also only move along the axial direction of the screw 1.

[0037] Specifically, the through hole 6 is coaxial with the channel 5. It should be noted that the screw 1 passes through the through hole 6 and is connected to the slider 3. Since the diameter of the screw 1 is the same as the diameter of the through hole 6, the screw 1, the slider 3 and the channel 5 are coaxial, which ensures that the gap between the slider 3 and the channel 5 will not change. Therefore, the detection groove will not increase in size due to stress input (such as collision, drop, etc.), thus ensuring that the invention can be used repeatedly for a long time.

[0038] Specifically, the outer surface of the head of the screw 1 is provided with anti-slip texture, which makes it easy to tighten or loosen the screw 1 and thus facilitates the installation and disassembly of the slider 3 of the present invention. In addition, it increases the friction when lifting the screw 1, which makes it easier to carry the permeate sensitivity detection device of the present invention.

[0039] Furthermore, "the edge of the end of the slider 3 with internal thread is chamfered" means that the end of the slider 3 with internal thread, that is, the end of the slider 3 that preferentially enters the sleeve 4, is chamfered to facilitate the entry of the slider 3 into the sleeve 4, and the chamfer and the sleeve 4 form a V-groove to facilitate the application of the permeating liquid.

[0040] Furthermore, the through slots 7 are arranged between adjacent detection slots, so that the detection slots are spaced apart. It should be noted that... Figure 1-3In the illustrated embodiment, the number of through slots 7 is set to 2. Of course, the number of through slots 7 can be set to multiple, as long as the various detection slots are arranged at intervals. Setting multiple through slots 7 can enable the simultaneous comparative detection of multiple permeates with different sensitivities, which greatly improves the detection efficiency. The detection slots are of the same size, which can reduce the influence of unnecessary factors on the test results and ensure the reliability of the comparative detection results. In addition, since there is a gap between the slider 3 and the channel 5, the through slot 7 can be clamped with tweezers or other means to complete the threaded engagement during the threaded engagement of the screw 1 and the slider 3, which facilitates the installation and disassembly of the permeate sensitivity comparative detection device of the present invention.

[0041] Furthermore, the through groove 7 does not interfere with the internal thread of the slider 3, thus avoiding unnecessary impact on the test results.

[0042] Furthermore, the upper edge of channel 5 is chamfered, which, together with the chamfer of slider 3, forms a V-groove to facilitate the application of permeate.

[0043] To better understand the technical solution and effects of the present invention, the following comparison with the prior art is made through specific embodiments:

[0044] Take equal amounts of two different permeate solutions to be tested. Since the through groove 7 divides the test groove into two parts of the same size, the V-shaped groove formed by the chamfer of the slider 3 and the chamfer of the channel 5 is also divided into two parts of the same size. Add one permeate solution to one of the V-shaped grooves, ensuring that the permeate solution covers the bottom of the V-shaped groove (i.e., the top of the test groove). Similarly, add the other permeate solution to the other V-shaped groove, ensuring that the permeate solution covers the bottom of the V-shaped groove (i.e., the top of the test groove). Then directly observe the permeation of the permeate solution at the intersection of the through groove and the test groove. The permeate solution that permeates into the test groove first has better sensitivity. After the comparative test is completed, separate the slider 3 and the sleeve 4 for cleaning and drying. Then connect the slider 3 and the sleeve 4 through the screw 1 and place them in a desiccator for storage and later use.

[0045] In existing technologies, penetrant sensitivity comparison tests often use type A and type C test blocks. Taking type A test blocks as an example, the detection surface of a type A test block is divided into two equal parts. Equal amounts of two different penetrants are applied to the detection surface of the type A test block. The penetration time for this comparison test is determined based on the properties of the penetrants (e.g., water-washing type, post-emulsification type, solvent-removing type). Then, the type A test block is cleaned using the appropriate cleaning method, dried, and then a developer is applied. Finally, the type A test block is observed and compared to determine the superiority or inferiority of the penetrant sensitivity. After the comparison test, the surface of the type A test block is first cleaned with acetone, then boiled in water for half an hour to remove residual penetrant from the defects. It is then dried at 110℃ for 15 minutes to evaporate all moisture from the cracks. It is then soaked in a mixture of 50% toluene and 50% trichloroethylene for future use. Alternatively, the cleaned test block can be soaked in acetone for more than 24 hours, dried, and stored in a desiccator for later use. However, both Type A and Type C test blocks have the following drawbacks: 1. Stress input during use (such as impact, drop, applying bending stress, applying pressure to the back of the test block, etc.) can cause cracks to continue to propagate, increase in size, and even generate new cracks. 2. Cracks on the test block have extremely small tips, which accumulate penetrant during use, making the display of fine cracks on the test block increasingly unclear or even impossible to display with increasing use. 3. The shape and distribution of cracks on the two test surfaces of the test block may differ in some cases, thus leading to certain deviations in comparative tests. 4. Comparative tests involve steps such as cleaning, drying, and adding developer in addition to applying penetrant; errors in these steps will affect the final comparative results, thereby impacting the reliability of the test conclusions.

[0046] Compared with existing technologies, the above-described permeate sensitivity comparison and detection device of the present invention compares the sensitivity of two permeates, and through direct observation, more accurately and quickly compares the superiority or inferiority of the sensitivity of different permeates. In the prior art, although both type A and type C test blocks can be used for permeate sensitivity comparison tests, the crack size on the test blocks cannot be controlled. During the manufacturing process of these two types of test blocks, it is impossible to have two test blocks with completely identical crack sizes. Therefore, it may lead to distortion of the results of comparing the sensitivity of the two permeates. When using type A or type C test blocks for sensitivity comparison tests, the selected penetration time after the permeate is applied is the theoretical time for that type of permeate to achieve full penetration. The actual time for the permeate to complete penetration will be less. In addition, different cleaning methods need to be selected according to the different properties of the permeate (e.g., water-washing type, post-emulsification type, solvent removal type), followed by drying treatment, then adding a developer, and finally observation. Improper operation in any step of the process may cause distortion of the comparison results. For example, improper cleaning methods may lead to local over-cleaning, thereby affecting the defect detection rate of one of the permeates, and thus causing distortion of the sensitivity comparison results. Furthermore, this invention, compared to existing technologies, consumes less time and has simpler operating procedures during comparative testing, and the results obtained through direct observation and comparison are more convincing. This invention can increase the number of through-slots 7, thereby increasing the number of detection slots, enabling simultaneous comparative testing of multiple penetrants with different sensitivities, which is more efficient than existing technologies. Moreover, this invention does not need to consider the influence of cracks, making it more convenient than existing technologies in terms of cleaning, storage, and transport.

[0047] In specific embodiments of the present invention, such as Figure 1 As shown, the through groove 7 is preferably a square groove, which makes it easier to clamp the slider 3 compared to other shapes. The through groove 7 can be a round groove or a U-shaped groove. When using a round groove, a round groove with a larger diameter is preferred to obtain a better clamping effect.

[0048] In specific embodiments of the present invention, such as Figure 3 As shown, the slider 3 is preferably cylindrical. Compared to other shapes, this type of slider is the simplest to manufacture while still being able to perform comparative experiments. The slider 3 can be a stepped shaft or a frustum. When a stepped shaft is used, multiple gaps of different sizes can be set, allowing for comparison of the sensitivity of different permeating fluids at different gaps. When a frustum is used, the gap between the slider 3 and the channel 5 changes from being uniform at the top and bottom to being wider at the top and narrower at the bottom. This gap more closely resembles the cracks on actual workpieces, further increasing the realism of the comparative experiment results.

[0049] Within the scope of the technical concept of this invention, such as Figure 3As shown, there is a certain distance between the limiting plate 2 and the sleeve 4. The limiting plate 2 can be directly set on the sleeve 4. After the screw 1 and the slider 3 are connected by a threaded engagement, the limiting plate 2 can further restrict the movement of the slider 3 in the axial direction.

[0050] In the description of the invention, references to terms such as "one embodiment," "some embodiments," and "a specific implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this invention, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0052] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0053] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A permeate sensitivity contrast detection device, characterized by, The utility model relates to a sliding block (3), sleeve (4), sleeve (4) is equipped with outside the sliding block (3), and the inner surface of sleeve (4) is equipped with at least two detection grooves for comparing the sensitivity of permeating liquid with the outer surface of sliding block (3), the outer surface of sliding block (3) is equipped with the through groove (7) for observing the permeating speed of permeating liquid, the through groove (7) is arranged between adjacent detection grooves, the gap between sliding block (3) and channel (5) is the detection groove for comparing the sensitivity of permeating liquid, the size of detection groove is set according to the sensitivity of the permeating liquid to be detected, the inside of sleeve (4) is equipped with the channel (5) matched with sliding block (3), the top of sleeve (4) is equipped with the limiting plate (2), sliding block (3) is connected with limiting plate (2) through connecting piece, connecting piece includes screw rod (1), limiting plate (2) is equipped with through hole (6), screw rod (1) passes through through hole (6) and is connected with sliding block (3) threadedly, through hole (6) is arranged coaxially with channel (5), so that the gap of detection groove formed between sliding block (3) and channel (5) remains constant.

2. The permeate sensitivity contrast detection device of claim 1, wherein, The aperture of the through hole (6) is the same as the rod diameter of the screw rod (1).

3. The permeate sensitivity contrast detection device of claim 1, wherein, The outer surface of the head of the screw rod (1) is provided with anti-skid lines.

4. The permeate sensitivity contrast detection device of claim 1, wherein, The edge line of the end of the sliding block (3) provided with internal threads is provided with a chamfer.

5. The permeate sensitivity contrast detection device of claim 1, wherein, The upper edge line of the channel (5) is provided with a chamfer.

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