Corrosion high throughput testing test machine

Abstract

The application discloses a kind of high flux test test machines of corrosion, and technical solution points are including test platform, it is used to support metal sample;Sample station, it is set in test platform top and is provided with multiple;Test electrode, one test electrode is fixed on each sample station, and the sample fixed on sample station is attached to test electrode;Test cup, it can be moved to sample station above in turn and can be pressed in on the top of sample fixed by sample station, the bottom of test cup is opened and seal ring is arranged around the opening;And peristaltic pump, for injecting test liquid into test cup;By test cup pressing on sample, by peristaltic pump, test liquid is introduced into test cup, test electrode is connected with circuit, and potential change collected is transmitted, so as to obtain the electrochemical corrosion of sample, can well control test environment and not prone to sample loss.

Description

Technical Field

[0001] This invention relates to metal corrosion testing, and more specifically, to a high-throughput corrosion testing machine. Background Technology

[0002] In atmospheric and seawater environments, the surface of metallic materials is often prone to electrochemical corrosion due to surface wetting or direct immersion in electrolyte solutions. The electrolyte solutions generated in seawater environments usually contain halide ions and chloride ions, which not only increase the conductivity of the solution but also promote the generation of localized corrosion such as pitting corrosion, crevice corrosion, and intergranular corrosion.

[0003] The metals on ships come into direct contact with seawater. To ensure the service life of ships after they are submerged, it is necessary to test the metal materials used in the ships to determine their electrochemical corrosion in seawater. Existing testing methods require manual supervision for everything from sample replacement and electrolyte replenishment to waste liquid treatment. The probability of human error is high, and different people may produce different errors, which further affect the test results. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a high-throughput corrosion testing machine. This machine uses a test cup pressed onto the sample, and a peristaltic pump to introduce a test liquid into the test cup. The test electrode is connected to a circuit to transmit the collected potential changes, thereby obtaining the electrochemical corrosion status of the sample. This machine can effectively control the testing environment, reduce manpower requirements, and minimize the risk of human error.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-throughput corrosion testing machine, comprising a testing platform for supporting metal samples;

[0006] The sample station is located on top of the test platform and there are multiple of them;

[0007] Test electrode: There is a test electrode fixed at each sample station, and the sample fixed at the sample station is in contact with the test electrode.

[0008] The test cup can be moved sequentially to the top of the sample station and pressed against the top of the sample station. The bottom of the test cup is open and a sealing ring is provided around the opening.

[0009] And a peristaltic pump, which is used to inject the test solution into the test cup.

[0010] By adopting the above technical solution, the test cup is pressed onto the sample, and the test liquid is introduced into the test cup by a peristaltic pump. The test electrode is connected to the circuit, and the collected potential changes are transmitted out, thereby obtaining the electrochemical corrosion status of the sample. This method can effectively control the test environment and is less likely to result in sample loss.

[0011] The present invention is further configured such that: a groove is provided on the top of the test platform, and the sample stations are all set in the groove;

[0012] The bottom of the groove is provided with multiple drain ports for discharging the liquid flowing into the groove.

[0013] By adopting the above technical solution, and by setting the groove and the drain outlet, the test liquid flowing out of the test cup from the opening at the bottom of the test cup at the end of the test will flow directly into the groove, and then flow out from the drain outlet at the bottom of the groove, so that the test liquid at the end of the test will not affect other samples.

[0014] The invention is further configured to include multiple storage tanks, each used to store different test solutions, and a peristaltic pump that can inject the test solutions from the different storage tanks into the test cup.

[0015] By adopting the above technical solution and setting up different storage tanks, different test solutions can be stored, thereby allowing different samples to be tested separately using different test solutions.

[0016] The present invention is further configured to include a temperature control device, wherein each liquid storage tank is provided with a temperature control device, which is used to control the temperature of the test liquid in the liquid storage tank.

[0017] By adopting the above technical solution, the temperature of the test liquid in the storage tank can be adjusted and controlled by the temperature control device, so that test liquids of different temperatures can be used to test the sample according to the test requirements.

[0018] The present invention is further configured to include a main control module; the temperature control device includes a temperature sensor, which is electrically connected to the main control module;

[0019] And an electric heating element, which is electrically connected to the main control module and is used to heat the test liquid.

[0020] The present invention is further configured to include a support plate, and the test platform is disposed on top of the support plate;

[0021] The movable seat is positioned above the test platform and can slide horizontally.

[0022] And a sliding seat, which is set on a movable seat, can slide horizontally on the movable seat, and the sliding direction of the sliding seat is perpendicular to the sliding direction of the movable seat. The test cup can slide up and down on the sliding seat.

[0023] The invention is further configured such that: the top of the support plate is provided with two primary lead screws located on both sides of the test platform, the primary lead screws are rotatably connected to the top of the support plate and their length direction is set along the sliding direction of the moving seat, the bottom of the moving seat is fixedly connected with two primary sliders, the two primary lead screws pass through the two primary sliders along their own length direction, and the primary lead screws and primary sliders are threaded together.

[0024] The present invention is further configured such that: a secondary lead screw is rotatably connected to the side of the movable seat near the sliding seat, the length direction of the secondary lead screw is set along the sliding direction of the sliding seat, a secondary slider is fixedly connected to the side of the sliding seat near the movable seat, and the secondary lead screw passes through the secondary slider along its own length direction and is threadedly connected to the secondary slider.

[0025] The invention is further configured such that: a vertically arranged three-stage lead screw is rotatably connected to the side of the sliding seat near the test cup, and a three-stage slider is fixedly connected to the side of the test cup near the sliding seat; the three-stage lead screw vertically passes through the three-stage slider and is threadedly connected to the three-stage slider.

[0026] The present invention is further configured such that at least one guide component is provided between the third-stage slider and the sliding seat, between the second-stage slider and the moving seat, and between the first-stage slider and the support plate. The guide component includes a guide rail and a guide block. A groove is provided on the guide block, and the guide rail can be embedded in the groove.

[0027] In summary, the present invention has the following advantages compared to the prior art:

[0028] 1. This invention presses a test cup onto the sample, introduces a test liquid into the test cup via a peristaltic pump, connects the test electrode to the circuit, and transmits the collected potential changes to obtain the electrochemical corrosion status of the sample, thus enabling good control of the test environment;

[0029] 2. By setting up different storage tanks, the present invention can store different test solutions, thereby allowing different samples to be tested separately using different test solutions;

[0030] 3. The present invention can adjust and control the temperature of the test liquid in the storage tank through a temperature control device, thereby enabling the use of test liquids at different temperatures to test the sample according to the test requirements. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0032] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0033] Figure 3 for Figure 2 Enlarged schematic diagram of part B.

[0034] In the diagram: 1. Support plate; 11. Primary lead screw; 2. Support frame; 21. Liquid storage tank; 22. Peristaltic pump; 3. Test platform; 31. Groove; 32. Flow guide groove; 33. Drain outlet; 4. Test cup; 41. Tertiary slider; 5. Sample station; 51. Test electrode; 6. Moving seat; 61. Secondary lead screw; 62. Primary slider; 7. Sliding seat; 71. Tertiary lead screw; 72. Secondary slider; 8. Guide assembly; 81. Guide rail; 82. Guide block; 821. Slide groove. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0036] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0037] Example: A high-throughput corrosion testing machine, see appendix. Figure 1 Appendix Figure 2 and attached Figure 3 The test platform 3 is used to support the metal sample, multiple sample stations 5 are set on the top of the test platform 3, test electrodes 51 are fixedly connected to the sample stations 5, test cups 4 are set above the test platform 3, and peristaltic pumps 22 are used to inject test liquid into the test cups 4. Each sample station 5 can support one sample, and one side of the sample supported on the sample station 5 is attached to the test electrode 51. The test cups 4 can be moved to the top of the sample station 5 in sequence and can be pressed against the top of the sample fixed on the sample station 5. The bottom of the test cups 4 is open and a sealing ring is provided around the opening.

[0038] When conducting metal sample testing, different metal samples are fixed on different sample stations 5. The samples on the sample stations 5 are attached to the test electrodes 51. The test cups 4 are moved above one of the sample stations 5, and then the test cups 4 are moved downwards and pressed against the sample. Then, the test liquid is injected into the test cups 4 through the peristaltic pump 22. The test liquid in the test cups 4 reacts with the sample. During the test, the test electrodes 51 transmit the collected electrical signals. The corrosion status of the metal sample is obtained by analyzing the electrical signals.

[0039] Specifically, a groove 31 is provided on the top of the test platform 3, and the sample stations 5 are all set in the groove 31. The groove 31 is provided with multiple drain ports 33 for sending out the liquid flowing into the groove 31. After the sample test is completed, the test cup 4 is separated from the sample, and the test liquid in the test cup 4 flows out through the opening at the bottom of the test cup 4. The outflowing test liquid flows into the groove 31 and is discharged through the drain ports 33 at the bottom of the groove 31.

[0040] Specifically, the groove 31 is a rectangular groove 31, and multiple sample stations 5 are arranged in a crisscross pattern along the length and width of the groove 31. A drain port 33 is provided at each of the four corners of the groove 31 and at the middle of each side, allowing liquid entering the groove 31 to be discharged promptly from the drain port 33. A rectangular guide channel 32 is formed at the bottom of the groove 31 near the perimeter, and the guide channel 32 passes sequentially through multiple drain ports 33.

[0041] Specifically, this embodiment also includes multiple storage tanks 21, each storing different test solutions. A peristaltic pump 22 can inject the test solutions from the different storage tanks into the test cup 4. When testing the sample, different concentrations of test solutions are required. By setting up different storage tanks 21, different concentrations of test solutions can be stored simultaneously. During testing, the peristaltic pump 22 can inject test solutions of different concentrations into the test cup 4 according to the experimental requirements.

[0042] Specifically, this embodiment also includes a temperature control device. Each storage tank 21 is equipped with a temperature control device, which can control the temperature of the test liquid in the storage tank 21. Since temperature is an important factor affecting the electrochemical corrosion of metals, by controlling the temperature of the test liquid in the storage tank 21, electrochemical corrosion tests can be performed on metal samples using test liquids at different temperatures.

[0043] Specifically, the temperature control device includes a main control module, a temperature sensor, an electric cooling component, and an electric heating component; the main control module is electrically connected to the temperature sensor, and the main control module is also electrically connected to the electric heating component and the electric cooling component; the electric heating component and the temperature sensor extend into the test liquid in the storage tank 21, and the test liquid is heated by the electric heating component.

[0044] A temperature sensor is inserted into the test liquid in the storage tank 21 and transmits the temperature data of the test liquid in the storage tank 21 to the main control module. The main control module determines whether the test liquid needs to be heated or cooled based on the received temperature data. When heating is required, the test liquid is heated by an electric heating element until it reaches the target temperature. When cooling is required, the test liquid is cooled by an electric cooling element until it reaches the target temperature.

[0045] Specifically, this embodiment also includes a support plate 1, and the test platform 3 is set on the top of the support plate 1; a support frame 2 is set at the bottom of the support plate 1 to support the support plate 1; the liquid storage tank 21 and the peristaltic pump 22 are both fixed on the support frame 2 and located below the support plate 1.

[0046] This embodiment also includes a movable seat 6 disposed above the test platform 3 and a sliding seat 7 disposed on the movable seat 6; the movable seat 6 can slide horizontally above the test platform 3, and the sliding direction of the movable seat 6 is parallel to the length direction of the groove 31; the sliding seat 7 can slide horizontally on the movable seat 6, and the sliding direction of the sliding seat 7 is perpendicular to the sliding direction of the movable seat 6, and the test cup 4 can slide up and down on the sliding seat 7.

[0047] The test cup 4 can be moved above any sample station 5 by sliding the movable seat 6 on the support plate 1 and the sliding seat 7 on the movable seat 6. The test cup 4 can be pressed onto the sample by sliding the test cup 4 up and down on the sliding seat 7.

[0048] Specifically, the support plate 1 has two primary lead screws 11 located on both sides of the test platform 3. The primary lead screws 11 are rotatably connected to the top of the support plate 1 and their length direction is set along the sliding direction of the movable seat 6. The bottom of the movable seat 6 is fixedly connected to two primary sliders 62. The two primary lead screws 11 pass through the two primary sliders 62 along their own length direction and are threaded together. The rotation of the primary lead screws 11 can drive the primary sliders 62 to slide along the length direction of the primary lead screws 11, thereby driving the test cup 4 to slide along the length direction of the slide groove 821 through the movable seat 6.

[0049] Specifically, a secondary lead screw 61 is rotatably connected to the side of the movable seat 6 near the sliding seat 7. The length direction of the secondary lead screw 61 is set along the sliding direction of the sliding seat 7. A secondary slider 72 is fixedly connected to the side of the sliding seat 7 near the movable seat 6. The secondary lead screw 61 passes through the secondary slider 72 along its own length direction and is threadedly connected to the secondary slider 72. The rotation of the secondary lead screw 61 can drive the secondary slider 72 to slide along the length direction of the secondary lead screw 61, thereby driving the test cup 4 to slide along the width direction of the slide groove 821 through the sliding seat 7.

[0050] Specifically, a vertically arranged three-stage lead screw 71 is rotatably connected to the side of the sliding seat 7 near the test cup 4, and a three-stage slider 41 is fixedly connected to the side of the test cup 4 near the sliding seat 7. The three-stage lead screw 71 vertically passes through the three-stage slider 41 and is threadedly connected to the three-stage slider 41. The rotation of the three-stage lead screw 71 can drive the three-stage slider 41 to slide up and down, thereby driving the test cup 4 to slide up and down.

[0051] Specifically, at least one guide component 8 is provided between the third-stage slider 41 and the sliding seat 7, between the second-stage slider 72 and the movable seat 6, and between the first-stage slider 62 and the support plate 1. The guide component 8 includes a guide rail 81 and a guide block 82. A groove 821 is formed on the guide block 82, into which the guide rail 81 can be embedded. The guide block 82 and guide rail 81 guide the sliding direction of the movable seat 6, the sliding seat 7, and the test cup 4. Specifically, the guide rail 81 is fixed to the sliding seat 7, the movable seat 6, and the support plate 1, and the guide block 82 is fixed to the first-stage slider 62, the second-stage slider 72, and the third-stage slider 41. One guide component 8 is provided between the first-stage slider 62 and the support plate 1, two guide components 8 are provided between the second-stage slider 72 and the movable seat 6, and two guide components 8 are provided between the third-stage slider 41 and the sliding seat 7.

[0052] The working principle of this high-throughput corrosion testing machine is as follows: Different metal samples are fixed on different sample stations 5. The samples on the sample stations 5 are attached to the test electrodes 51. The test cups 4 are moved above one of the sample stations 5, and then the test cups 4 are moved downwards and pressed against the sample. Then, the test liquid is injected into the test cups 4 through the peristaltic pump 22. The test liquid in the test cups 4 reacts with the sample. During the test, the test electrodes 51 transmit the collected electrical signals. The corrosion status of the metal sample is obtained by analyzing the electrical signals.

[0053] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A high-throughput corrosion testing machine, characterized in that: Includes a test platform (3), which is used to support the metal sample; The sample station (5) is located on top of the test platform (3) and has multiple stations; Test electrode (51): A test electrode (51) is fixed on each sample station (5), and the sample fixed on the sample station (5) is in contact with the test electrode (51). The test cup (4) can be moved sequentially to the top of the sample station (5) and pressed against the top of the sample station (5) where it is fixed. The bottom of the test cup (4) is open and a sealing ring is provided around the opening. And a peristaltic pump (22) for injecting test liquid into the test cup (4); The test platform (3) has a groove (31) on its top, and the sample station (5) is set in the groove (31); The bottom of the groove (31) is provided with multiple drain ports (33) for discharging liquid flowing into the groove (31); It also includes multiple storage tanks (21), each of which is used to store different test solutions. The peristaltic pump (22) can inject the test solutions from the different storage tanks (21) into the test cup (4). Different metal samples are fixed on different sample stations (5). The samples on the sample station (5) are attached to the test electrode (51). The test cup (4) is moved above one of the sample stations (5) and then the test cup (4) is moved downward and pressed on the sample. Then, the test liquid is injected into the test cup (4) by the peristaltic pump (22). The test liquid in the test cup (4) reacts with the sample. During the test, the test electrode (51) transmits the collected electrical signal. The corrosion status of the metal sample is obtained by analyzing the electrical signal.

2. The high-throughput corrosion testing machine according to claim 1, characterized in that: It also includes a temperature control device. Each storage tank (21) is equipped with a temperature control device, which is used to control the temperature of the test liquid in the storage tank (21).

3. The high-throughput corrosion testing machine according to claim 2, characterized in that: It also includes a main control module; the temperature control device includes a temperature sensor, which is electrically connected to the main control module; And an electric heating element, which is electrically connected to the main control module and is used to heat the test liquid.

4. The high-throughput corrosion testing machine according to claim 3, characterized in that: It also includes a support plate (1), and a test platform (3) is set on top of the support plate (1); The movable seat (6) is set above the test platform (3) and can slide in the horizontal direction; And a sliding seat (7) is provided on the movable seat (6). The sliding seat (7) can slide horizontally on the movable seat (6). The sliding direction of the sliding seat (7) is perpendicular to the sliding direction of the movable seat (6). The test cup (4) can slide up and down on the sliding seat (7).

5. The high-throughput corrosion testing machine according to claim 4, characterized in that: The support plate (1) is provided with two first-stage lead screws (11) located on both sides of the test platform (3). The first-stage lead screws (11) are rotatably connected to the top of the support plate (1) and their length direction is set along the sliding direction of the moving seat (6). The bottom of the moving seat (6) is fixedly connected with two first-stage sliders (62). The two first-stage lead screws (11) pass through the two first-stage sliders (62) along their own length direction. The first-stage lead screws (11) and the first-stage sliders (62) are threaded together.

6. The high-throughput corrosion testing machine according to claim 5, characterized in that: The movable seat (6) is rotatably connected to a secondary lead screw (61) on the side near the sliding seat (7). The length direction of the secondary lead screw (61) is set along the sliding direction of the sliding seat (7). The sliding seat (7) is fixedly connected to a secondary slider (72) on the side near the movable seat (6). The secondary lead screw (61) passes through the secondary slider (72) along its own length direction and is threadedly connected to the secondary slider (72).

7. The high-throughput corrosion testing machine according to claim 6, characterized in that: The sliding seat (7) is rotatably connected to a vertically arranged three-stage lead screw (71) on the side near the test cup (4), and a three-stage slider (41) is fixedly connected to the side of the test cup (4) near the sliding seat (7). The three-stage lead screw (71) vertically passes through the three-stage slider (41) and is threadedly connected to the three-stage slider (41).

8. The high-throughput corrosion testing machine according to claim 7, characterized in that: At least one guide component (8) is provided between the third-level slider (41) and the sliding seat (7), between the second-level slider (72) and the moving seat (6), and between the first-level slider (62) and the support plate (1). The guide component (8) includes a guide rail (81) and a guide block (82). A groove (821) is provided on the guide block (82), and the guide rail (81) can be embedded in the groove (821).

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