A salt spray corrosion test chamber for paint detection

Abstract

The utility model relates to salt mist corrosion test box technical field, and disclose a kind of salt mist corrosion test box for coating detection, including box, the bottom of the box is fixedly installed with support leg, the top of the box is provided with the top cover that can be opened and closed, the periphery of the box is evenly provided with transparent observation window, the bottom side of the box is the hollow plate of hollow, the inside center of the box is provided with sprayer, the top of the sprayer is arrayed with spray head, the inside of the box is provided with the rotating positioning assembly of clamping sample and surrounding sprayer for the use of convenient uniform spray;Two sides of U type clamping plate are relatively close by the spring self elastic force, and then positioning is carried out by being clamped on the both sides of sample, servo motor is started again, and the outer gear ring meshing connection with gear can drive the rotation of rotator around sprayer, and then the sample can be driven to rotate around sprayer simultaneously, that is, the surface of sample can be uniformly sprayed salt mist, so as to improve corrosion test detection effect.

Description

Technical Field

[0001] This utility model relates to the technical field of salt spray corrosion test chambers, specifically a salt spray corrosion test chamber for coating testing. Background Technology

[0002] Salt spray test chambers are mainly used to simulate salt spray environmental conditions and to assess the corrosion resistance of related products or materials based on the corrosion of samples in the salt spray environment. They are mainly used to assess the ability of coating protective layers of parts, electronic components, and metal materials to resist salt spray corrosion.

[0003] In existing salt spray corrosion test chambers, the sample to be tested is usually laid flat, and then salt spray is sprayed onto the surface of the flat sample from top to bottom. Since the sample is only laid flat, only the upward side can be evenly contacted with the salt spray, and it is not convenient to change the angle. As a result, the experimental data is relatively simple and cannot obtain comprehensive corrosion test data. Therefore, further improvements can be made. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides the following technical solution: a salt spray corrosion test chamber for coating testing, comprising a chamber body, legs fixedly installed at the bottom of the chamber body, an openable and closable top cover, transparent observation windows on all four sides of the chamber body, a perforated plate on the bottom side of the chamber body, a sprayer located at the center of the chamber body, nozzles arrayed on the top of the sprayer, a rotating positioning assembly for clamping the sample and facilitating uniform spraying around the sprayer inside the chamber body, a frustum-shaped outer shell fixedly installed on the bottom side of the chamber body, and a collection box for collecting waste liquid located on the bottom side of the outer shell. By clamping the sample with the rotating positioning assembly, the sample rotates around the sprayer, thus uniformly spraying salt spray onto the sample surface, ensuring full contact between the sample and the fumes.

[0005] As an optimization, the rotary positioning assembly includes a rotating component, a transmission component, and a positioning component. The transmission component drives the rotating component to rotate, and the positioning component is installed on the rotating part of the rotating component.

[0006] As an optimization, the rotating component includes an annular shell and a rotating ring. The annular shell is fixedly installed inside the housing by a support rod. An annular rail is fixedly installed on the outer side of the rotating ring, and the annular rail is rotatably connected inside the annular shell. The positioning component array is installed on the rotating ring. An external gear ring for cooperating with the transmission component is fixedly installed on the outer side of the annular rail. Through the transmission component, the annular rail rotates inside the annular shell, which in turn drives the rotating ring to rotate synchronously. This allows the sample held on the positioning component to rotate around the sprayer, thereby enabling the salt spray to be evenly applied to the sample surface.

[0007] As an optimization, the transmission component includes a bracket fixedly installed at the included angle inside the housing, a sealing shell fixedly installed on the bracket, a servo motor installed inside the sealing shell, a gear one fixedly installed at one end of the output shaft of the servo motor, and a notch opened at the corresponding position of the gear on the annular shell, and the gear one meshes with an external gear ring. The external gear ring meshing with the gear one drives the rotating ring to rotate, thus transmitting power to the rotating component.

[0008] As an optimization, several balls are embedded in an array on both the upper and lower sides of the annular track, and annular grooves are opened on the inner walls of both the upper and lower sides of the annular shell. The balls roll and abut against the annular grooves, and the friction can be reduced by the balls rolling along the annular grooves.

[0009] As an optimization, the positioning component includes a rotating rod with a bearing installed in the middle of the rotating rod and the bearing mounted on a rotating ring. A clamping part is fixedly installed at the top of the rotating rod, and a second gear is fixedly installed at the bottom end of the rotating rod. An internal gear ring is fixedly installed on the bottom side of the annular shell, and the second gear is meshed with and surrounding the inner side of the internal gear ring. By having the second gear roll along the inner side of the internal gear ring, the sample held by the clamping part will rotate, thereby enabling salt spray to be sprayed onto the back of the sample as well.

[0010] As an optimization, the clamping part includes a slide rail seat fixedly installed at the top of the rotating rod. Sliders are slidably connected inside both ends of the slide rail seat. A spring is fixedly installed between the slider and the inner wall of the slide rail seat. A U-shaped clamp is fixedly installed on the top side of the slider. A bolt fastener is provided in the middle of the side of the U-shaped clamp. The spring force itself will cause the U-shaped clamps on both sides to clamp and position the sample.

[0011] As an optimization, all parts of the rotary positioning assembly are made of corrosion-resistant titanium alloy material, which can withstand long-term salt spray corrosion tests and avoid damage to the parts during the test, thus preventing the test from proceeding normally.

[0012] The beneficial effects of this utility model are: This salt spray corrosion test chamber for coating testing uses the elasticity of springs to pull the U-shaped clamps on both sides closer together, thus clamping and positioning the sample on both sides. Then, the servo motor is activated, which drives the rotating ring to rotate around the sprayer through the external gear ring meshing with the gear. This causes the sample to rotate synchronously around the sprayer, so that salt spray can be evenly sprayed onto the sample surface, thereby improving the corrosion test detection effect.

[0013] This salt spray corrosion test chamber for coating testing uses a rotating ring to drive gear two to roll along the inner side of the internal gear ring. This causes the rotating rod to rotate on its own axis while revolving around the sprayer. Consequently, the sample held in the clamping part rotates on its own axis while revolving around the sprayer, allowing salt spray to be sprayed onto the back of the sample as well. This results in a more uniform spray of fumes onto the sample surface, enabling comprehensive corrosion testing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rotary positioning structure of this utility model; Figure 3 This is a schematic diagram of the rotating and positioning components of this utility model; Figure 4 This is a schematic diagram of the positioning component of this utility model.

[0015] In the diagram: 1. Box body; 2. Support leg; 3. Perforated plate; 4. Sprayer; 5. Nozzle; 6. Rotary positioning assembly; 7. Outer shell; 8. Collection box; 9. Annular shell; 10. Rotary ring; 11. Annular rail; 12. External gear ring; 13. Gear one; 14. Ball bearing; 15. Annular groove; 16. Rotating rod; 17. Bearing; 18. Gear two; 19. Internal gear ring; 20. Slide rail seat; 21. Slider; 22. Spring; 23. U-shaped clamp. Detailed Implementation

[0016] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are 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 application.

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-2A salt spray corrosion test chamber for coating testing includes a chamber body 1, with support legs 2 fixedly installed at the bottom of the chamber body 1, an openable top cover on the top of the chamber body 1, transparent observation windows on all four sides of the chamber body 1, a perforated panel 3 on the bottom side of the chamber body 1, a sprayer 4 located at the center of the interior of the chamber body 1, nozzles 5 arranged in an array on the top of the sprayer 4, a rotating positioning assembly 6 for holding samples and facilitating uniform spraying around the sprayer 4 inside the chamber body 1, and a frustum-shaped outer shell 7 fixedly installed on the bottom side of the chamber body 1. A collection box 8 for collecting waste liquid is provided on the side. The sample is clamped by the rotating positioning component 6, which makes the sample rotate around the sprayer 4. Therefore, salt spray can be sprayed evenly onto the sample surface, so that it can fully contact the smoke. The waste liquid will drip down from the hollow plate 3 and enter the collection box 8 along the outer shell 7 for collection, which is convenient for subsequent waste liquid treatment. All parts of the rotating positioning component 6 are made of corrosion-resistant titanium alloy material, which can withstand long-term salt spray corrosion test and avoid damage to parts during the test, thus preventing the normal operation of the test. Please see Figure 2-3 The rotary positioning assembly 6 includes a rotating component, a transmission component, and a positioning component. The transmission component drives the rotating component to rotate. The positioning component is installed on the rotating part of the rotating component. The sample is clamped and installed by the positioning component. Then, the transmission component can be activated to drive the rotating component, which will cause the sample to rotate around the sprayer 4 along with the rotating component, so that salt spray can be sprayed evenly. Please see Figure 2-3 The rotating component includes an annular shell 9 and a rotating ring 10. The annular shell 9 is fixedly installed inside the housing 1 by a support rod. An annular rail 11 is fixedly installed on the outer side of the rotating ring 10 and is rotatably connected to the inside of the annular shell 9. An array of positioning components is installed on the rotating ring 10. An external gear ring 12 for cooperating with the transmission component is fixedly installed on the outer side of the annular rail 11. Through the transmission component, the annular rail 11 will rotate inside the annular shell 9, which will drive the rotating ring 10 to rotate synchronously. This allows the sample held on the positioning component to rotate around the sprayer 4, thereby enabling the salt spray to be sprayed evenly on the sample surface. Please see Figure 2-3 The transmission component includes a bracket fixedly installed at the included angle inside the housing 1. A sealing shell is fixedly installed on the bracket. A servo motor is installed inside the sealing shell. A gear 13 is fixedly installed at one end of the output shaft of the servo motor. The annular shell 9 has a notch corresponding to the gear 13. The gear 13 and the external gear ring 12 are meshed and connected. By starting the servo motor to drive the gear 13 to rotate, the external gear ring 12 meshing with it can drive the rotating ring 10 to rotate, thereby playing a transmission role on the rotating component. Please see Figure 2-3The upper and lower sides of the annular rail 11 are each arrayed with several balls 14. The inner walls of the upper and lower sides of the annular shell 9 are provided with annular grooves 15, and the balls 14 roll against the annular grooves 15. As the annular rail 11 rotates inside the annular shell 9, the balls 14 will roll along the annular grooves 15, thereby reducing friction and making the rotation smoother. Please see Figure 3-4 The positioning component includes a rotating rod 16, a bearing 17 is installed in the middle of the rotating rod 16 and the bearing 17 is mounted on the rotating ring 10. A clamping part is fixedly installed at the top of the rotating rod 16 and a gear 18 is fixedly installed at the bottom end of the rotating rod 16. An internal gear ring 19 is fixedly installed on the bottom side of the annular shell 9, and the gear 18 is meshed with the inner side of the internal gear ring 19. When the rotating ring 10 rotates, it will drive the gear 18 to roll along the inner side of the internal gear ring 19, which will cause the rotating rod 16 to rotate on its own axis while revolving around the sprayer 4. Therefore, it will drive the sample held by the clamping part to rotate, so that salt spray can also be sprayed on the back of the sample, making the smoke sprayed on the sample surface more uniform and enabling comprehensive corrosion testing. Please see Figure 3-4 The clamping part includes a slide rail seat 20 fixedly installed at the top of the rotating rod 16. Slider 21 is slidably connected to both ends of the slide rail seat 20. A spring 22 is fixedly installed between the slider 21 and the inner wall of the slide rail seat 20. A U-shaped clamp 23 is fixedly installed on the top side of the slider 21. A bolt fastener is provided in the middle of the side of the U-shaped clamp 23. The spring 22 itself will make the slider 21 on both sides always tend to be relatively close, so it will drive the U-shaped clamp 23 on both sides to clamp and position the sample. The installation is convenient and quick, and by tightening the bolt fastener, the sample side can be pressed tightly to improve stability.

[0019] When in use, first pull open the U-shaped clamps 23 on both sides, then place the sample between the U-shaped clamps 23 on both sides. The spring 22 will pull the U-shaped clamps 23 on both sides closer together, so it will clamp the sample on both sides for positioning and installation. Then tighten the bolts and fasteners to press against the sample side to improve stability. Then you can start the servo motor, so the external gear ring 12 that meshes with gear 13 will drive the rotating ring 10 to rotate around the sprayer 4, which will in turn drive the sample to rotate around the sprayer 4 synchronously, so that salt spray can be evenly sprayed on the sample surface. At the same time, when the rotating ring 10 rotates, it will drive the gear 2 18 to roll along the inner side of the internal gear ring 19, which will cause the rotating rod 16 to rotate on its own axis while revolving around the sprayer 4. Therefore, it will drive the sample held by the clamping part to rotate on its own axis while revolving around the sprayer 4, so that salt spray can also be sprayed on the back of the sample, making the smoke sprayed on the sample surface more uniform.

[0020] In summary, this salt spray corrosion test chamber for coating testing uses the elastic force of spring 22 to pull the U-shaped clamps 23 on both sides closer together, thereby clamping and positioning the sample on both sides. Then, the servo motor is started, which drives the rotating ring 10 to rotate around the sprayer 4 through the external gear ring 12 that meshes with gear 13. This causes the sample to rotate synchronously around the sprayer 4, so that salt spray can be evenly sprayed on the sample surface, thereby improving the corrosion test detection effect.

[0021] The rotation of the rotating ring 10 will drive the gear 18 to roll along the inner side of the internal gear ring 19, which will cause the rotating rod 16 to rotate on its own axis while revolving around the sprayer 4. Therefore, the sample held by the clamping part will rotate on its own axis while revolving around the sprayer 4, so that salt spray can also be sprayed on the back of the sample, making the smoke sprayed on the sample surface more uniform, thus enabling comprehensive corrosion testing.

[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A salt spray corrosion test chamber for coating testing, comprising a chamber body (1), wherein a support leg (2) is fixedly installed at the bottom of the chamber body (1), and an openable and closable top cover is provided at the top of the chamber body (1), characterized in that: The box (1) is provided with transparent observation windows on all four sides. The bottom side of the box (1) is a hollow plate (3). A sprayer (4) is provided in the center of the box (1). Sprayers (5) are installed in an array on the top of the sprayer (4). A rotating positioning component (6) is provided inside the box (1) for holding the sample and spraying it evenly around the sprayer (4). A frustum-shaped shell (7) is fixedly installed on the bottom side of the box (1). A collection box (8) for collecting waste liquid is provided on the bottom side of the shell (7). The rotary positioning assembly (6) includes a rotating component, a transmission component, and a positioning component. The transmission component drives the transmission component to rotate, and the positioning component is installed on the rotating part of the rotating component. The rotating component includes an annular shell (9) and a rotating ring (10). The annular shell (9) is fixedly installed inside the housing (1) by a support rod. An annular rail (11) is fixedly installed on the outer side of the rotating ring (10), and the annular rail (11) is rotatably connected to the inside of the annular shell (9). The positioning component array is installed on the rotating ring (10). An external gear ring (12) for cooperating with the transmission component is fixedly installed on the outer side of the annular rail (11). The transmission component includes a bracket fixedly installed at the included angle inside the housing (1), a sealing shell fixedly installed on the bracket, a servo motor installed inside the sealing shell, a gear (13) fixedly installed at one end of the output shaft of the servo motor, and a notch opened in the annular shell (9) corresponding to the gear (13), and the gear (13) meshes with the external gear ring (12). The positioning component includes a rotating rod (16), a bearing (17) is installed in the middle of the rotating rod (16), and the bearing (17) is installed on the rotating ring (10). A clamping part is fixedly installed on the top of the rotating rod (16), and a gear two (18) is fixedly installed at the bottom end of the rotating rod (16). An internal gear ring (19) is fixedly installed on the bottom side of the annular shell (9), and the gear two (18) surrounds the inner side of the internal gear ring (19) and meshes with it. The clamping part includes a slide rail seat (20) fixedly installed at the top of the rotating rod (16). Sliders (21) are slidably connected inside both ends of the slide rail seat (20). A spring (22) is fixedly installed between the slider (21) and the inner wall of the slide rail seat (20). A U-shaped clamp (23) is fixedly installed on the top side of the slider (21). A bolt fastener is provided in the middle of the side of the U-shaped clamp (23).

2. The salt spray corrosion test chamber for coating testing according to claim 1, characterized in that: The upper and lower sides of the annular rail (11) are each arrayed with a number of balls (14), and the inner walls of the upper and lower sides of the annular shell (9) are provided with annular grooves (15), and the balls (14) roll and abut against the annular grooves (15).

3. The salt spray corrosion test chamber for coating testing according to claim 1, characterized in that: All parts of the rotary positioning assembly (6) are made of corrosion-resistant titanium alloy.

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