Multifunctional permeation nondestructive testing imaging device

Abstract

The utility model relates to the technical field of penetration detection, and specifically discloses a multifunctional penetration nondestructive testing developing device. The device comprises a sealing cover, a developing cabinet, an observation window, a grid, a compressed air pipe, developing powder, a transmission shaft, a motor, wherein the sample is placed on the grid, the transmission shaft and the motor are connected below the grid, the bottom of the developing cabinet is a conical structure, contains the developing powder, the heater and the developing powder are in contact, the bottom of the developing cabinet is provided with the compressed air pipe, and the compressed air pipe is drilled with a small hole. The utility model can efficiently complete the developing process in penetration detection, improve the detection sensitivity, save detection materials, improve the detection conditions and reduce the pollution of the environment.

Description

Technical Field

[0001] This utility model relates to the field of penetrant testing technology, and specifically discloses a multifunctional imaging device for penetrant nondestructive testing. Background Technology

[0002] Penetrant testing, also known as nondestructive testing, involves penetrating a specimen with a penetrant. Under capillary action, the penetrant penetrates into surface defects over time. Excess penetrant is then removed from the workpiece surface, and after drying, a developer powder is sprayed onto the surface. Again, under capillary action, the developer powder attracts the penetrant from the defects. Finally, under illumination by a specific light source, the penetrant traces at the defects are revealed, thus detecting surface defects. The application of the developer powder is the most crucial step in penetrant testing.

[0003] Currently, most methods use spray guns, electrostatic spraying, or embedding the workpiece in developing powder for imaging. These methods have drawbacks such as low powder spraying efficiency, uneven spraying, and the inability to allow the penetrating liquid in the defects to seep back to the surface of the specimen through the developing powder, resulting in the inability to form clearly visible defects.

[0004] Therefore, there is an urgent need to develop a completely new imaging device to overcome the problems existing in the current technology. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A multifunctional penetrant nondestructive testing imaging device includes a sealing cover 1, an imaging cabinet 2, an observation window 3, a grid 5, a compressed air pipe 6, developing powder 7, a drive shaft 9, and a motor 10. The display cabinet 2 is a cylindrical shell with one open end, and the top opening is sealed by a sealing cover 1. The bottom end of the display cabinet 2 has a through hole, and the motor 10 is located outside the display cabinet 2. The motor 10 is connected to one end of the drive shaft 9, which enters the interior of the display cabinet 2 through the bottom through hole. The other end of the drive shaft 9 is connected to the grid 5. The grid 5 is a plate with several through slots, used to support the sample and allow the developing powder 7 to pass through the grid 5. The display cabinet 2 has an observation window 3 located on the side wall of the grid 5 for detecting the powder spraying effect of the sample. The lower cavity of the display cabinet 2 is provided with a powder holding plate, on which developing powder 7 is placed; the upper side wall of the powder holding plate of the display cabinet 2 is provided with several openings, through which the compressed air pipe 6 passes. One end of the compressed air pipe 6 is located inside the display cabinet 2, and the other end is located outside the display cabinet 2, for filling the interior of the display cabinet 2 with external gas.

[0006] Preferably, the display cabinet 2 is a funnel-shaped shell, and the end port where the sealing cover 1 is located has a large diameter opening.

[0007] Preferably, a sponge ring is provided on the groove edge below the sealing cover 1 that connects with the display cabinet 2, for completely sealing the display cabinet 2 to prevent the developer powder 7 from escaping.

[0008] Preferably, the size of the observation window 3 is 500mm × 500mm.

[0009] Preferably, the compressed air pipe 6 has several small holes inside the display cabinet 2. When compressed air passes through the compressed air pipe 6, the compressed air blows the developing powder 7 up and fills the display cabinet 2. The developing powder 7 falls and completely covers the sample.

[0010] Preferably, several heaters 8 are connected to the lower side wall of the powder holding plate of the display cabinet 2 to heat and keep the developing powder 7 in a dry and loose state.

[0011] Furthermore, the temperature range of the heater is 30~50℃.

[0012] Preferably, the motor 10 has a forward and reverse rotation function, and controls the rotation of the sample 4 through the transmission shaft 9, which facilitates the inspection of the powder spraying effect of the sample.

[0013] The beneficial effects achieved by this invention are: it can efficiently complete the imaging process in penetrant testing, improve detection sensitivity, save detection materials, improve detection conditions, and reduce environmental pollution. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a multifunctional penetrant nondestructive testing imaging device according to the present invention.

[0015] In the diagram: 1. Sealing cover; 2. Development cabinet; 3. Observation window; 4. Sample; 5. Grating; 6. Compressed air pipe; 7. Developer powder; 8. Heater; 9. Drive shaft; 10. Motor. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] In the attached diagram, all identical reference numerals refer to the same components.

[0018] Example 1 The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1As shown, a multifunctional penetrant nondestructive testing imaging device includes a sealing cover 1, an imaging cabinet 2, an observation window 3, a sample 4, a grid 5, a compressed air pipe 6, developing powder 7, a heater 8, a drive shaft 9, and a motor 10.

[0020] The display cabinet 2 is a cylindrical shell with one open end, the top opening of which is sealed by a sealing cover 1. The bottom of the display cabinet 2 has a through hole, and a motor 10 is located outside the display cabinet 2. The motor 10 is connected to one end of a drive shaft 9, which enters the interior of the display cabinet 2 through the bottom through hole. The other end of the drive shaft 9 is connected to a grid 5. The grid 5 is a plate with several through slots, used to support the sample and allow the developing powder 7 to pass through the grid 5. An observation window 3 is located on the side wall of the grid 5 in the display cabinet 2, used to detect the powder spraying effect on the sample. The size of the observation window 3 is 500mm × 500mm. The lower cavity of the display cabinet 2 contains a powder holding plate on which developing powder 7 is placed. Several openings are provided on the upper side wall of the powder holding plate. A compressed air pipe 6 passes through these openings, with one end inside the display cabinet 2 and the other end outside, to inject external gas into the display cabinet 2. The compressed air pipe 6 has several small holes inside the display cabinet 2. When compressed air passes through the compressed air pipe 6, it blows the developing powder 7 up, filling the display cabinet 2, and then the developing powder 7 falls and completely coats the sample.

[0021] The display cabinet 2 has a funnel-shaped shell, and the end of the sealing cover 1 has a large-diameter opening. A sponge ring is provided on the groove edge below the sealing cover 1 that connects with the display cabinet 2, to completely seal the display cabinet 2 and prevent the developer powder 7 from escaping.

[0022] Several heaters 8 are connected to the lower side wall of the powder holding plate of the developing cabinet 2 to heat and keep the developing powder 7 in a dry and loose state. The temperature range of the heaters is 30~50℃.

[0023] The motor 10 is equipped with forward and reverse rotation functions, and controls the rotation of the sample 4 through the transmission shaft 9, which facilitates the inspection of the powder spraying effect of the sample.

[0024] The specific operating steps are as follows: First, open the sealing cover 1 and place the sample 4 on the grid 5, then close the sealing cover to make the inside of the display cabinet 2 completely sealed; Second, introduce compressed air into the compressed air pipe 6 for 1-3 seconds each time, for a total of 3-5 times. The compressed air will blow the developing powder 7 up and fill the display cabinet 2, and the developing powder 7 will fall and completely cover the sample; Third, start the motor 10 to drive the grid to rotate with the sample. Check the sample through the observation window 3. If the sample is not completely covered by the developing powder, repeat the second step until the sample is completely covered by the developing powder 7; Fourth, wait 30-50 minutes for the developing powder in the display cabinet 2 to completely fall, open the sealing cover, take out the sample 4 and observe the sample in the darkroom, and complete the sample defect interpretation.

[0025] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multifunctional imaging device for penetrant nondestructive testing, characterized in that, Includes a sealing cover (1), a display cabinet (2), an observation window (3), a grille (5), a compressed air pipe (6), developing powder (7), a drive shaft (9), and a motor (10); The display cabinet (2) is a cylindrical shell with one end open, and the top opening is sealed by a sealing cover (1); the bottom end of the display cabinet (2) is provided with a through hole, and the motor (10) is located outside the display cabinet (2). The motor (10) is connected to one end of the drive shaft (9), and the drive shaft (9) enters the interior of the display cabinet (2) through the bottom through hole. The other end of the drive shaft (9) is connected to the grid (5); the grid (5) is a plate with several through slots, which is used to support the sample and allow the developing powder (7) to pass through the grid (5); the display cabinet (2) is provided with an observation window (3) on the side wall of the grid (5) for detecting the powder spraying effect of the sample; The lower cavity of the display cabinet (2) is provided with a powder holding plate, on which developing powder (7) is placed; the upper side wall of the powder holding plate of the display cabinet (2) is provided with several openings, and the compressed air pipe (6) passes through the openings. One end of the compressed air pipe (6) is located inside the display cabinet (2), and the other end is located outside the display cabinet (2), which is used to fill the display cabinet (2) with external gas.

2. The multifunctional imaging device for penetrant nondestructive testing according to claim 1, characterized in that, The display cabinet (2) is a funnel-shaped shell, and the end port where the sealing cover (1) is located is a large-diameter opening.

3. The multifunctional imaging device for penetrant nondestructive testing according to claim 1, characterized in that, A sponge ring is provided on the groove edge below the sealing cover (1) that connects with the display cabinet (2).

4. The multifunctional imaging device for penetrant nondestructive testing according to claim 1, characterized in that, The size of the observation window (3) is 500mm×500mm.

5. The multifunctional imaging device for penetrant nondestructive testing according to claim 1, characterized in that, The compressed air pipe (6) has several small holes inside the display cabinet (2). When compressed air passes through the compressed air pipe (6), the compressed air blows the developing powder (7) up and fills the display cabinet (2). The developing powder (7) falls and completely covers the sample.

6. The multifunctional imaging device for penetrant nondestructive testing according to claim 1, characterized in that, Several heaters (8) are connected to the lower side wall of the powder holding plate of the display cabinet (2) to heat the powder and keep it dry and loose.

7. The multifunctional imaging device for penetrant nondestructive testing according to claim 6, characterized in that, The heater has a temperature range of 30~50℃.

8. The multifunctional imaging device for penetrant nondestructive testing according to claim 1, characterized in that, The motor (10) has forward and reverse rotation functions and controls the rotation of the sample (4) through the transmission shaft (9).

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