A corrosion resistance detection device and detection method for corrosion foil processing

Abstract

The present invention discloses a corrosion resistance detection device and detection method for corrosion foil processing, which relates to the field of material corrosion detection technology, including a detection box, an exhaust mechanism is provided at the upper end of the detection box, an ultraviolet lamp is provided at the top of the inner wall of the detection box, and a traction mechanism is provided on one side of the detection box. The atomized corrosion liquid in the present invention is closer to the corrosive media in the natural atmosphere, such as acid rain and salt spray, and can more realistically simulate complex corrosion environments. The synergistic effect of light, humidity, and corrosion liquid can be used to study the superposition effect of various corrosion mechanisms, such as photo-oxidation corrosion and wet heat corrosion, which is close to the complex scenes in actual applications. By comparing the corrosion rate under conditions with and without light, the promoting effect of ultraviolet rays on material corrosion, such as photocatalytic oxidation, can be clarified. By comparing the corrosion foil on the corrosion swing mechanism and the corrosion diffusion mechanism, the influence of different humidity levels on corrosion types, such as pitting corrosion and crevice corrosion, can be analyzed.

Description

Technical Field

[0001] The present invention relates to the technical field of material corrosion detection, and in particular to a corrosion resistance detection device and a detection method for corrosion foil processing. Background Art

[0002] For example, the publication number is CN115420668A, and the name is a corrosion resistance detection device for engineering plastic production. The air pressure is dispersed to the inside of five partition rods through the air guide frame. When the air pressure inside the partition rod increases, it drives the top block upward and pushes the opening and closing piece upward to open. At this time, the nozzle is in an open state and the air pressure is sprayed out. At this time, the corrosive liquid is aerated and floats upward, thereby improving the reaction contact between the corrosive liquid and the engineering plastic.

[0003] The environment simulated by the above-mentioned corrosion resistance detection device is one-sided, and only targets a single corrosion factor (such as salt spray, humidity or light). It is unable to reproduce the real corrosion scenario in the natural environment where multiple factors such as acid rain, ultraviolet rays, and humidity changes are superimposed, resulting in deviations between the test results and actual applications. Secondly, the above-mentioned corrosion resistance detection device tests are mostly carried out under static conditions, ignoring the impact of the mechanical stress (such as stretching and vibration) that the material bears for a long time in actual use on its durability. It is difficult to evaluate the material performance in a "stress + corrosion" composite environment, and it is difficult to simulate complex scenarios such as narrow spaces or contact corrosion (such as galvanic corrosion, local contact corrosion), and it is impossible to accurately evaluate the corrosion behavior of materials in confined environments. Therefore, the present application provides a corrosion resistance detection device and detection method for corrosion foil processing to meet the needs. Summary of the Invention

[0004] The purpose of this application is to provide a corrosion resistance detection device and detection method for corrosion foil processing, which can effectively solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a corrosion resistance detection device for corrosion foil processing, comprising a detection box, an exhaust mechanism provided at the upper end of the detection box, an ultraviolet lamp provided at the top of the inner wall of the detection box, a traction mechanism provided at one side of the detection box, an exhaust pipe provided at the bottom of the inner wall of the detection box, a corrosion diffusion mechanism provided at the upper end of the exhaust pipe for guiding the corrosion mist, a limit block provided at the inner wall of the detection box, and a clamping mechanism provided on the outer surface of the limit block, a plurality of corrosion foil strips clamped inside the clamping mechanism, a force control mechanism provided at the bottom of the corrosion diffusion mechanism for cooperating with the clamping mechanism to apply different pulling forces to the plurality of corrosion foil strips, and a corrosion swing mechanism provided at the upper end of the corrosion diffusion mechanism;

[0006] The corrosion swing frame mechanism comprises a clamping column, the outer surface of which is provided with a plurality of inner grooves distributed in a ring shape and with gradually decreasing spacing, and the interior of the inner groove is provided with a corrosion frame.

[0007] Among them, the corrosion diffusion mechanism includes a mounting plate and a chassis, a mounting column is provided at the upper end of the mounting plate, the clamping column is sleeved on the outer surface of the mounting column, a guide vane for guiding the diffusion of corrosion mist is provided between the mounting plate and the chassis, a plurality of exhaust holes are opened at the upper end of the mounting plate, and a mounting pipe is provided at the bottom of the chassis, and the mounting pipe is installed at the upper end of the exhaust pipe.

[0008] The bottom of the chassis is provided with a plurality of magnetic clips distributed at equal intervals, and foil is clamped inside the magnetic clips. A pull rope is provided on the outer surface of the chassis, and one end of the pull rope extends to the inside of the traction mechanism.

[0009] The force control mechanism includes a mounting box, wherein a plurality of arc tubes distributed at equal intervals are arranged inside the mounting box, and springs with different elastic forces are respectively arranged inside the plurality of arc tubes.

[0010] A rubber seal is provided at one end of the arc tube, a spacer is provided on one side of the inner portion of the arc tube, a pull wire passing through a spring and the rubber seal is provided at one end of the spacer, a clamping frame is provided at one end of the pull wire, and the mounting box is installed at the lower end of the chassis.

[0011] Wherein, the clamping mechanism includes a first clamping block, both sides of the first clamping block are provided with limiting grooves, and the first clamping block is installed on the outer surface of the limiting block through the limiting grooves.

[0012] Among them, a plurality of second clamping blocks are provided on the inner wall of the first clamping block, and the second clamping blocks and the clamping frame together clamp the corrosion foil strips. The inner wall of the first clamping block is provided with a mounting bracket, and the mounting bracket is installed on the outer surface of the mounting tube.

[0013] The interior of the corrosion rack is provided with a plurality of air holes distributed in a rectangular array, and both sides of the corrosion rack are provided with a plurality of base frames distributed at equal intervals.

[0014] The corrosion swing frame mechanism further comprises a magnetic sheet, and opposite surfaces of the magnetic sheet and the base frame are provided with spacers, and a foil plate is sandwiched between two groups of spacers.

[0015] The present invention also provides a detection method for a corrosion resistance detection device for corrosion foil processing, and the specific detection method is as follows:

[0016] Step 1: Install the corrosion foil to be tested inside the corrosion swing mechanism and the corrosion diffusion mechanism, and then install the corrosion foil strip between the clamping mechanism and the force control mechanism. When the corrosion foil is subjected to corrosion testing, the corrosion liquid is converted into a fine mist by compressed air and then sprayed out through the exhaust pipe. The atomized corrosion gas sprayed out through the exhaust pipe is guided by the corrosion diffusion mechanism and then sprayed indirectly on the surface of the corrosion foil, while the mist will fill the entire cavity inside the test box.

[0017] Step 2: The corrosion foil installed on the corrosion swing frame mechanism is located below the ultraviolet lamp, and the exhaust mechanism is provided to intermittently dry the chamber inside the detection box. The corrosion foil on the corrosion swing frame mechanism is irradiated by the ultraviolet lamp to simulate a real corrosion environment, while the corrosion foil arranged at the bottom of the corrosion diffusion mechanism is shielded by the corrosion swing frame mechanism and cannot be irradiated by the ultraviolet lamp. In addition, the corrosion foil at the bottom of the corrosion diffusion mechanism is located at the bottom of the detection box cavity and is in a humid environment, so that the corrosion environment of the corrosion diffusion mechanism and the corrosion foil on the corrosion swing frame mechanism is in contrast.

[0018] Step 3: The corrosion foil strips arranged between the clamping mechanism and the force control mechanism are continuously pulled by the force control mechanism. Multiple corrosion foil strips are pulled by different forces, thereby detecting the difference in surface corrosion conditions of the corrosion foil strips under different forces.

[0019] In summary, the technical effects and advantages of the present invention are as follows:

[0020] 1. The atomized corrosive liquid in the present invention is closer to the corrosive media in the natural atmosphere, such as acid rain and salt spray, and can more realistically simulate complex corrosion environments. The synergistic effect of light, humidity, and corrosive liquid can study various corrosion mechanisms such as the superposition effect of photooxidation corrosion and wet heat corrosion, which is close to the complex scenes in actual applications. The uniform distribution of corrosive liquid reduces local corrosion differences and ensures the repeatability and accuracy of the test results. The corrosion swing frame mechanism is located below the ultraviolet lamp and is directly exposed to light and mist. The bottom of the corrosion diffusion mechanism is blocked and has no light, and is in a humid environment, forming a comparison with the corrosion swing frame mechanism. By comparing the corrosion rates under conditions with and without light, the promoting effect of ultraviolet rays on material corrosion, such as photocatalytic oxidation, can be clarified. By comparing the corrosion foils on the corrosion swing frame mechanism and the corrosion diffusion mechanism, the effects of different humidity levels on corrosion types such as pitting corrosion and crevice corrosion can be analyzed.

[0021] 2. The present invention applies different tensile forces to multiple corrosion foil strips through a force control mechanism, creating a stress gradient from low to high. The adjustable tensile force simulates mechanical stresses that may be encountered in actual applications, such as stretching, bending, or vibration. By comparing the corrosion rate and corrosion morphology, such as crack growth rate and corrosion depth, under different tensile forces, the influence of stress on the corrosion resistance of the material can be directly quantified, identifying the material's stress tolerance limit in a specific corrosive medium, thus avoiding stress corrosion cracking caused by stress exceeding the threshold in engineering applications. Furthermore, the different corrosion types caused by the same tensile force, such as pitting, intergranular corrosion, or stress corrosion cracking, help clarify the failure mechanism of the material under stress. The corrosion foil strips are continuously stressed during the experiment, simulating the long-term mechanical loads that materials experience in actual use. Combined with environmental factors such as atomized corrosive fluid, humidity, and ultraviolet light, this creates a "stress + corrosive medium" complex environment, which can more accurately predict the material's life under real-world conditions, avoiding the limitations of testing only under static conditions and ensuring that the results are more closely aligned with actual application needs. Furthermore, by subjecting multiple corrosion foil strips to different tensile forces simultaneously, multiple sets of data can be obtained in the same experiment.

[0022] 3. In the present invention, the gaps between multiple corrosion racks decrease from large to small, forming test areas with different spacings. In addition, the foil plates are in direct contact through spacers to simulate the contact corrosion scenario in actual applications. Different gap sizes can test the corrosion behavior of materials in narrow spaces and determine the critical gap value, such as the minimum gap size that causes severe corrosion. By comparing the corrosion rate and morphology under different gaps, such as the crevice corrosion depth and expansion path, the corrosion resistance of the material in a confined space can be evaluated. The spacers are in contact with the foil plates to simulate galvanic corrosion or localized contact corrosion, such as contact between two metals or contact between different areas of the same metal. The uniform clamping force of the magnetic sheet ensures that all foil plates are subjected to consistent force, avoiding stress differences caused by uneven clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the first-person perspective three-dimensional structure of the corrosion resistance detection device;

[0025] Figure 2 A schematic diagram of the second perspective stereoscopic structure of the corrosion resistance detection device;

[0026] Figure 3 A schematic diagram of the third-view stereoscopic connection of the corrosion resistance detection device;

[0027] Figure 4 It is a schematic diagram of the internal three-dimensional connection structure of the corrosion resistance detection device;

[0028] Figure 5 It is a schematic diagram of the three-dimensional connection structure of the exhaust pipe and the clamping mechanism;

[0029] Figure 6 A schematic diagram of the first-person perspective three-dimensional connection structure of the exhaust pipe, the force control mechanism, and the clamping mechanism;

[0030] Figure 7 A schematic diagram of the three-dimensional connection structure of the exhaust pipe, the force control mechanism, and the clamping mechanism from a second perspective;

[0031] Figure 8 A schematic diagram of the first-person perspective three-dimensional connection structure of the corrosion diffusion mechanism;

[0032] Figure 9 A schematic diagram of the second-view three-dimensional connection structure of the corrosion diffusion mechanism;

[0033] Figure 10 It is a schematic diagram of the three-dimensional connection structure of the force control mechanism and the clamping mechanism;

[0034] Figure 11 Schematic diagram of the three-dimensional connection structure of the force control mechanism;

[0035] Figure 12 It is a cross-sectional view of the three-dimensional connection structure of the force control mechanism;

[0036] Figure 13 This is a schematic diagram of the three-dimensional connection structure of the corrosion swing frame mechanism from a first-person perspective;

[0037] Figure 14 A schematic diagram of the second-view three-dimensional connection structure of the corrosion swing frame mechanism;

[0038] Figure 15 Schematic diagram of the three-dimensional connection structure of the corrosion rack.

[0039] In the figure: 1. Detection box; 2. Exhaust mechanism; 3. Traction mechanism; 4. Ultraviolet lamp; 5. Corrosion swing mechanism; 51. Clamping column; 52. Inner groove; 53. Corrosion rack; 54. Foil plate; 55. Air hole; 56. Magnetic sheet; 57. Base frame; 58. Spacer; 6. Corrosion diffusion mechanism; 61. Mounting plate; 62. Mounting column; 64. Exhaust hole; 65. Pull rope; 66. Base plate; 67. Guide vane; 68. Foil; 69, mounting tube; 611, magnetic clamp; 7, exhaust pipe; 10, clamping mechanism; 101, first clamping block; 102, limiting groove; 103, second clamping block; 104, mounting bracket; 11, limiting block; 12, force control mechanism; 121, mounting box; 122, clamping frame; 123, rubber seal; 124, arc tube; 125, spring; 126, spacer; 127, pull wire; 13, corrosion foil strip. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example 1, Reference Figures 1 to 15 The corrosion resistance detection device for corrosion foil processing includes a detection box 1, an exhaust mechanism 2 is provided at the upper end of the detection box 1, an ultraviolet lamp 4 is provided at the top of the inner wall of the detection box 1, a traction mechanism 3 is provided on one side of the detection box 1, an exhaust pipe 7 is provided at the bottom of the inner wall of the detection box 1, and a corrosion diffusion mechanism 6 for guiding the corrosion mist is provided at the upper end of the exhaust pipe 7. A limit block 11 is provided on the inner wall of the detection box 1, and a clamping mechanism 10 is provided on the outer surface of the limit block 11. A plurality of corrosion foil strips 13 are clamped inside the clamping mechanism 10. A control mechanism 12 is provided at the bottom of the corrosion diffusion mechanism 6 to cooperate with the clamping mechanism 10 to apply different pulling forces to the multiple corrosion foil strips 13. A corrosion swing frame mechanism 5 is provided at the upper end of the corrosion diffusion mechanism 6.

[0042] It is worth noting that the corrosion foil to be inspected is installed inside the corrosion swing mechanism 5 and the corrosion diffusion mechanism 6, and then the corrosion foil strip 13 is installed between the clamping mechanism 10 and the force control mechanism 12. When the corrosion foil is subjected to corrosion inspection, the corrosion liquid is converted into a fine mist by compressed air and then sprayed through the exhaust pipe 7. The atomized corrosion gas sprayed through the exhaust pipe 7 is guided by the corrosion diffusion mechanism 6 and then sprayed indirectly on the surface of the corrosion foil, and the mist will fill the entire cavity inside the inspection box 1.

[0043] The corrosion foil mounted on the corrosion swing mechanism 5 is located below the ultraviolet lamp 4, and the exhaust mechanism 2 is provided to intermittently dry the chamber inside the detection box 1. The corrosion foil on the corrosion swing mechanism 5 is irradiated by the ultraviolet lamp 4 to simulate a real corrosion environment, while the corrosion foil arranged at the bottom of the corrosion diffusion mechanism 6 is shielded by the corrosion swing mechanism 5 and cannot be irradiated by the ultraviolet lamp 4. Moreover, the corrosion foil at the bottom of the corrosion diffusion mechanism 6 is located at the bottom of the inner cavity of the detection box 1 and is in a humid environment, so that the corrosion environments of the corrosion diffusion mechanism 6 and the corrosion foil on the corrosion swing mechanism 5 are in contrast.

[0044] Among them, the corrosive liquid is atomized by compressed air to make the corrosive medium evenly distributed in the entire chamber of the test box. The ultraviolet lamp simulates the natural light environment to accelerate the aging and oxidation reaction of the material. The exhaust mechanism performs intermittent drying to simulate the impact of humidity changes on corrosion.

[0045] The atomized corrosive liquid is closer to the corrosive media in the natural atmosphere, such as acid rain and salt spray, and can more realistically simulate complex corrosion environments. The synergistic effect of light, humidity, and corrosive liquid can study various corrosion mechanisms such as photooxidation corrosion and the superposition effect of wet heat corrosion, which is close to the complex scenes in actual applications. The uniform distribution of corrosive liquid reduces local corrosion differences and ensures the repeatability and accuracy of the test results. The corrosion swing mechanism 5 is located below the ultraviolet lamp and is directly exposed to light and mist. The bottom of the corrosion diffusion mechanism 6 is blocked and has no light, and is in a humid environment, forming a comparison with the corrosion swing mechanism 5. By comparing the corrosion rates with and without light conditions, the promoting effect of ultraviolet rays on material corrosion, such as photocatalytic oxidation, can be clarified. By comparing the corrosion foils on the corrosion swing mechanism 5 and the corrosion diffusion mechanism 6, the influence of different humidity levels on corrosion types such as pitting corrosion and crevice corrosion can be analyzed.

[0046] The corrosion foil strips 13 arranged between the clamping mechanism 10 and the force control mechanism 12 are continuously pulled by the force control mechanism 12. Multiple corrosion foil strips 13 are pulled by different tensile forces, thereby detecting the differences in surface corrosion conditions of the corrosion foil strips 13 under different tensile forces.

[0047] Among them, different tensile forces are applied to multiple corrosion foil strips 13 through the force control mechanism 12 to form a stress gradient from low to high. The tensile force can be adjusted to simulate the mechanical stress that may be encountered in actual applications, such as stretching, bending or vibration. By comparing the corrosion rate and corrosion morphology under different tensile forces, such as crack propagation rate and corrosion depth, the influence of stress on the corrosion resistance of the material can be directly quantified, and the stress tolerance limit of the material in a specific corrosive medium can be identified, avoiding stress corrosion cracking caused by stress exceeding the threshold in engineering applications. In addition, different corrosion types such as pitting corrosion, intergranular corrosion or stress corrosion cracking caused by the same tensile force can be used to help clarify the failure mechanism of the material under stress.

[0048] The corrosion foil strips 13 are continuously subjected to stress during the experiment, simulating the scenario in which the material is subjected to long-term mechanical loads in actual use. Combined with environmental factors such as atomized corrosion liquid, humidity and ultraviolet rays, a composite environment of "stress + corrosion medium" is formed, which can more accurately predict the life of the material under real conditions, avoid the limitations of testing only under static conditions, and ensure that the results are closer to actual application needs. Moreover, multiple corrosion foil strips 13 are subjected to different tensile forces at the same time, and multiple sets of data can be obtained in the same experiment.

[0049] Embodiment 2: Based on the corrosion diffusion mechanism 6 shown in embodiment 1, this embodiment provides a further technical solution for the corrosion diffusion mechanism 6.

[0050] The corrosion diffusion mechanism 6 includes a mounting plate 61 and a chassis 66. A mounting column 62 is provided at the upper end of the mounting plate 61. The clamping column 51 is sleeved on the outer surface of the mounting column 62. A guide vane 67 for guiding the diffusion of corrosion mist is provided between the mounting plate 61 and the chassis 66. A plurality of exhaust holes 64 are provided at the upper end of the mounting plate 61. A mounting pipe 69 is provided at the bottom of the chassis 66. The mounting pipe 69 is installed at the upper end of the exhaust pipe 7.

[0051] It is worth mentioning that the corrosion mist enters between the chassis 66 and the mounting plate 61 through the exhaust pipe 7, and the guide vanes 67 guide the mist to spread and overflow the inner cavity of the detection box 1, and part of the corrosion mist will also be sprayed upward through the exhaust hole 64 and diffused on the surface of the corrosion foil inside the corrosion swing frame mechanism 5.

[0052] The bottom of the chassis 66 is provided with a plurality of magnetic clamps 611 distributed at equal intervals. The inside of the magnetic clamps 611 holds a foil 68 . The outer surface of the chassis 66 is provided with a pull rope 65 , one end of which extends to the inside of the traction mechanism 3 .

[0053] Among them, after the mist is guided and diffused in the inner cavity of the detection box 1 by the guide vane 67, the foil 68 clamped by the magnetic clamp 611 is corroded by the corrosive mist. Since the foil 68 is set at the bottom of the chassis 66, it cannot be irradiated by the ultraviolet lamp 4, so that the foil 68 is always in the humid corrosive mist for corrosion detection.

[0054] Among them, the guide vane 67 guides the diffusion of mist. Through the structural design of the guide vane, the corrosion mist is evenly dispersed between the chassis 66 and the mounting plate 61, ensuring that the inner cavity of the detection box 1 is filled with mist. Part of the mist diffuses upward through the exhaust hole, covering the surface of the corrosion foil inside the corrosion swing frame mechanism 5. Moreover, the guiding effect of the guide vane 67 reduces the local uneven distribution of the mist, making the concentration of the corrosive medium in the inner cavity of the detection box 1 more uniform, avoiding test deviations caused by local excessively high or low concentrations. The exhaust hole guides the mist upward, ensuring that the ultraviolet irradiated area of ​​the corrosion swing frame mechanism 5 and the unilluminated area of ​​the lower chassis 66 can be exposed to the corrosion mist, forming a complete corrosion environment simulation.

[0055] Embodiment 3: Based on the corrosion swing frame mechanism 5 proposed in embodiment 1, this embodiment provides a further technical solution for the corrosion swing frame mechanism 5.

[0056] The corrosion swing frame mechanism 5 includes a clamping column 51 . The outer surface of the clamping column 51 is provided with a plurality of inner grooves 52 distributed in a ring shape and with gradually decreasing spacing. The interior of the inner groove 52 is provided with a corrosion frame 53 .

[0057] A plurality of air holes 55 distributed in a rectangular array are provided inside the etching rack 53 , and a plurality of base frames 57 distributed at equal intervals are provided on both sides of the etching rack 53 .

[0058] The corrosion swing frame mechanism 5 further includes a magnetic sheet 56 , and spacers 58 are provided on the opposite surfaces of the magnetic sheet 56 and the base frame 57 , and a foil plate 54 is sandwiched between two groups of spacers 58 .

[0059] It is worth noting that the mist is sprayed on the gaps between the corrosion racks 53 through the exhaust holes 64, and the air holes 55 allow the mist to diffuse through the corrosion racks 53, and the gaps between the multiple corrosion racks 53 are gradually reduced, so that the gaps between the multiple foil plates 54 are different, so that the corrosion conditions of the foil plates 54 caused by the non-passage of the gaps between them or the contact of multiple foil plates 54 are also different, and the foil plates 54 are clamped by the magnetic attraction of the magnetic sheet 56, and the spacer 58 is used to contact the foil plates 54 for gap corrosion and pitting corrosion tests, and perform various corrosion tests on the foil plates 54, and the ultraviolet lamp 4 is directly irradiated on the surface of the foil plates 54, cooperating with the intermittent drying of the exhaust mechanism 2 to simulate the actual corrosion conditions.

[0060] Among them, the gaps between multiple corrosion racks 53 decrease from large to small, forming test areas with different spacings, and the foil plates 54 are in direct contact through spacers to simulate the contact corrosion scenario in actual applications. Different gap sizes can test the corrosion behavior of materials in narrow spaces, determine critical gap values, such as the size of the minimum gap that causes severe corrosion, and evaluate the corrosion resistance of materials in confined spaces by comparing corrosion rates and morphologies under different gaps, such as crevice corrosion depth and expansion path. The spacers 58 are in contact with the foil plates 54 to simulate galvanic corrosion or local contact corrosion, such as contact between two metals or contact between different areas of the same metal. The uniform clamping force of the magnetic sheet 56 ensures that all foil plates 54 are subjected to consistent force, avoiding stress differences caused by uneven clamping.

[0061] Embodiment 4: Based on the force control mechanism 12 and the clamping mechanism 10 provided in embodiment 1, this embodiment provides a further technical solution for the force control mechanism 12 and the clamping mechanism 10.

[0062] The clamping mechanism 10 includes a first clamping block 101 . Limiting grooves 102 are provided on both sides of the first clamping block 101 . The first clamping block 101 is mounted on the outer surface of the limiting block 11 through the limiting grooves 102 .

[0063] A plurality of second clamping blocks 103 are provided on the inner wall of the first clamping block 101 . The second clamping blocks 103 and the clamping frame 122 together clamp the corrosion foil strip 13 . A mounting bracket 104 is provided on the inner wall of the first clamping block 101 , and the mounting bracket 104 is installed on the outer surface of the mounting tube 69 .

[0064] It is worth noting that the corrosion foil strip 13 is first installed inside the second clamping block 103, and then the first clamping block 101 is installed on the limit block 11 and fixed. The inner wall of the first clamping block 101 is designed to be curved in order to fit the surface shape of the force control mechanism 12.

[0065] The force control mechanism 12 includes a mounting box 121 . A plurality of arc tubes 124 are arranged inside the mounting box 121 and are distributed at equal intervals. Springs 125 with different elastic forces are respectively arranged inside the plurality of arc tubes 124 .

[0066] A rubber seal 123 is provided at one end of the arc tube 124, a spacer 126 is provided on one side of the inner side of the arc tube 124, a pull wire 127 passing through the spring 125 and the rubber seal 123 is provided at one end of the spacer 126, a clamping frame 122 is provided at one end of the pull wire 127, and the mounting box 121 is installed at the lower end of the chassis 66.

[0067] Among them, one end of the corrosion foil strip 13 is installed inside the clamping frame 122, and the elastic force of the spring 125 pushes the spacer 126 to apply tension to the pull wire 127, and the corrosion foil strip 13 is tensioned by pulling the pull wire 127. When the corrosion foil strip 13 is subjected to corrosion detection, the pull rope 65 is pulled by the traction mechanism 3, and the chassis 66 is rotated by the pull rope 65, and the mounting tube 69 rotates on the outer surface of the exhaust pipe 7, and the mounting box 121 is driven to move through the chassis 66, and the rotation of the mounting box 121 drives the arc tube 124 to shift, thereby adjusting the position of the arc tube 124. Due to the different elastic forces of the spring 125 inside the arc tube 124, the tensioning force of the corrosion foil strip 13 by the pull wire 127 is different. By applying different tensions to the corrosion foil strip 13, the corrosion condition of the corrosion foil strip 13 in the corrosive mist can be detected.

[0068] Among them, the spring 125 and the spacer 126 are linked, and the spacer is pushed by the elastic force of the spring, and then tension is applied to the corrosion foil strip 13 through the pull wire 127. The rotation of the chassis 66 changes the position of the arc tube 124, resulting in a change in the effective elastic force of the spring 125, thereby dynamically adjusting the tension of the pull wire 127. The position of the arc tube 124 can be continuously adjusted by the rotation of the chassis 66 to achieve tension gradient control from low to high, simulating the various stress levels that the material may withstand in actual applications. The change in the position of the arc tube 124 can change the compression amount of the spring 125, thereby accurately controlling the magnitude of the pulling force, such as from slight tension to the ultimate tension close to the yield strength.

[0069] The present invention also provides a detection method for a corrosion resistance detection device for corrosion foil processing, and the specific detection method is as follows:

[0070] Step 1: Install the corrosion foil to be tested inside the corrosion swing mechanism 5 and the corrosion diffusion mechanism 6, and then install the corrosion foil strip 13 between the clamping mechanism 10 and the force control mechanism 12. When the corrosion foil is subjected to corrosion testing, the corrosion liquid is converted into a fine mist by compressed air and then sprayed through the exhaust pipe 7. The atomized corrosion gas sprayed through the exhaust pipe 7 is guided by the corrosion diffusion mechanism 6 and then sprayed indirectly on the surface of the corrosion foil, and the mist will fill the entire cavity inside the detection box 1;

[0071] Step 2: The corrosion foil installed on the corrosion swing frame mechanism 5 is located below the ultraviolet lamp 4, and the exhaust mechanism 2 is provided to intermittently dry the chamber inside the detection box 1. The corrosion foil on the corrosion swing frame mechanism 5 is irradiated by the ultraviolet lamp 4 to simulate a real corrosion environment, while the corrosion foil arranged at the bottom of the corrosion diffusion mechanism 6 is shielded by the corrosion swing frame mechanism 5 and cannot be irradiated by the ultraviolet lamp 4. In addition, the corrosion foil at the bottom of the corrosion diffusion mechanism 6 is located at the bottom of the inner cavity of the detection box 1 in a humid environment, so that the corrosion environment of the corrosion diffusion mechanism 6 and the corrosion foil on the corrosion swing frame mechanism 5 is in contrast.

[0072] Step 3: The corrosion foil strips 13 disposed between the clamping mechanism 10 and the force control mechanism 12 are continuously pulled by the force control mechanism 12. The multiple corrosion foil strips 13 are pulled by different forces, thereby detecting the differences in surface corrosion conditions of the corrosion foil strips 13 under different tensions.

[0073] 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 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 scope of protection of the present invention.

Claims

1. A corrosion resistance detection device for corrosion foil processing, comprising a detection box (1), an exhaust mechanism (2) being provided at the upper end of the detection box (1), and an ultraviolet lamp (4) being provided at the top of the inner wall of the detection box (1), characterized in that: A traction mechanism (3) is provided on one side of the detection box (1), an exhaust pipe (7) is provided at the bottom of the inner wall of the detection box (1), and a corrosion diffusion mechanism (6) for guiding the corrosion mist is provided at the upper end of the exhaust pipe (7), a limit block (11) is provided on the inner wall of the detection box (1), and a clamping mechanism (10) is provided on the outer surface of the limit block (11), a plurality of corrosion foil strips (13) are clamped inside the clamping mechanism (10), a control mechanism (12) is provided at the bottom of the corrosion diffusion mechanism (6) for cooperating with the clamping mechanism (10) to apply different pulling forces to the plurality of corrosion foil strips (13), a corrosion swing mechanism (5) is provided at the upper end of the corrosion diffusion mechanism (6), and the corrosion foil provided at the bottom of the corrosion diffusion mechanism (6) is shielded by the corrosion swing mechanism (5) and cannot be irradiated by the ultraviolet lamp (4); The corrosion swing frame mechanism (5) comprises a clamping column (51), the outer surface of the clamping column (51) is provided with a plurality of inner grooves (52) distributed in an annular shape and with gradually decreasing spacing, and the interior of the inner groove (52) is provided with a corrosion frame (53); The corrosion diffusion mechanism (6) includes a mounting plate (61) and a chassis (66), the upper end of the mounting plate (61) is provided with a mounting column (62), the clamping column (51) is sleeved on the outer surface of the mounting column (62), a guide vane (67) for guiding the diffusion of corrosion mist is provided between the mounting plate (61) and the chassis (66), the upper end of the mounting plate (61) is provided with a plurality of exhaust holes (64), the bottom of the chassis (66) is provided with a mounting tube (69), the mounting tube (69) is installed at the upper end of the exhaust pipe (7), the bottom of the chassis (66) is provided with a plurality of magnetic clips (611) distributed at equal intervals, and the interior of the magnetic clips (611) is clamped with a foil (68); The interior of the corrosion rack (53) is provided with a plurality of air holes (55) distributed in a rectangular array, and both sides of the corrosion rack (53) are provided with a plurality of base frames (57) distributed at equal intervals; The corrosion swing frame mechanism (5) further comprises a magnetic sheet (56), and spacers (58) are provided on opposite surfaces of the magnetic sheet (56) and the base frame (57), and a foil plate (54) is sandwiched between the two sets of spacers (58), and the spacers (58) are used to contact the foil plate (54) to perform gap corrosion and pitting corrosion tests.

2. The corrosion resistance detection device for corrosion foil processing according to claim 1, characterized in that: A pull rope (65) is provided on the outer surface of the chassis (66), and one end of the pull rope (65) extends to the interior of the traction mechanism (3).

3. The corrosion resistance detection device for corrosion foil processing according to claim 1, characterized in that: The force control mechanism (12) comprises a mounting box (121), wherein a plurality of arc tubes (124) distributed at equal intervals are arranged inside the mounting box (121), and springs (125) with different elastic forces are respectively arranged inside the plurality of arc tubes (124).

4. The corrosion resistance detection device for corrosion foil processing according to claim 3, characterized in that: A rubber seal (123) is provided at one end of the arc tube (124), a spacer (126) is provided on one side of the interior of the arc tube (124), a pull wire (127) passing through a spring (125) and the rubber seal (123) is provided at one end of the spacer (126), a clamping frame (122) is provided at one end of the pull wire (127), and the mounting box (121) is mounted at the lower end of the chassis (66).

5. The corrosion resistance detection device for corrosion foil processing according to claim 1, characterized in that: The clamping mechanism (10) comprises a first clamping block (101), both sides of the first clamping block (101) are provided with limiting grooves (102), and the first clamping block (101) is mounted on the outer surface of the limiting block (11) through the limiting grooves (102).

6. The corrosion resistance detection device for corrosion foil processing according to claim 5, characterized in that: The inner wall of the first clamping block (101) is provided with a plurality of second clamping blocks (103), and the second clamping blocks (103) and the clamping frame (122) together clamp the corrosion foil strip (13). The inner wall of the first clamping block (101) is provided with a mounting frame (104), and the mounting frame (104) is installed on the outer surface of the mounting tube (69).

7. A method for detecting the corrosion resistance detection device for corrosion foil processing according to any one of claims 1 to 6, characterized in that: The specific detection methods are as follows: Step 1: Install the corrosion foil to be tested inside the corrosion swing mechanism (5) and the corrosion diffusion mechanism (6), and then install the corrosion foil strip (13) between the clamping mechanism (10) and the force control mechanism (12). When the corrosion foil is subjected to corrosion testing, the corrosion liquid is formed into a fine mist by compressed air and then sprayed out through the exhaust pipe (7). The atomized corrosion gas sprayed out through the exhaust pipe (7) is guided by the corrosion diffusion mechanism (6) and then sprayed non-directly on the surface of the corrosion foil, and the mist will fill the entire chamber inside the detection box (1); Step 2: The corrosion foil installed on the corrosion swing frame mechanism (5) is located below the ultraviolet lamp (4), and the exhaust mechanism (2) is provided to intermittently dry the chamber inside the detection box (1). The corrosion foil on the corrosion swing frame mechanism (5) is irradiated by the ultraviolet lamp (4) to simulate a real corrosion environment, while the corrosion foil arranged at the bottom of the corrosion diffusion mechanism (6) is shielded by the corrosion swing frame mechanism (5) and cannot be irradiated by the ultraviolet lamp (4). Moreover, the corrosion foil at the bottom of the corrosion diffusion mechanism (6) is located at the bottom of the inner cavity of the detection box (1) in a humid environment, so that the corrosion environments of the corrosion diffusion mechanism (6) and the corrosion foil on the corrosion swing frame mechanism (5) are in contrast. Step 3: The corrosion foil strip (13) disposed between the clamping mechanism (10) and the force control mechanism (12) is continuously pulled by the force control mechanism (12). The plurality of corrosion foil strips (13) are pulled by different forces, thereby detecting the difference in surface corrosion conditions of the corrosion foil strips (13) under different forces.

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