Composite salt spray testing machine

Abstract

The utility model relates to a composite salt spray testing machine, which comprises a box body, a box cover hinged on the box body, a test chamber arranged in the box body, a sample holder arranged in the test chamber, a salt spray test component arranged on the inner side wall of the test chamber, a high-low temperature test component arranged on one side of the test chamber, a humidifying component arranged in the box body, and communicated with the test chamber. A heating assembly is arranged at the bottom of the test chamber, and a salt spray test assembly, a high-low temperature test assembly, a humidifying assembly and a heating assembly are arranged in the test chamber, so that a test sample is simulated to be exposed to salt spray, dry, condensed water and humid and hot environments, a certain test can be independently carried out, and the conditions can be coupled to form a complex alternating test; the device can simulate and enhance severe natural environment conditions more truly, quickly detect and test the corrosion resistance of materials, can complete various tests without moving samples, and saves labor cost and installation sites.

Description

Technical Field

[0001] The utility model relates to the technical field of salt spray testing, in particular to a composite salt spray testing machine. Background Art

[0002] In order to more realistically simulate the corrosion damage caused by natural environmental conditions containing sodium chloride pollution to products, many companies currently place the main accessories or assembled finished products in test sites in representative regions around the world for exposure testing, simulating the actual use environment conditions to evaluate the reliability of the products. This test method has some uncertainties. The corrosion of the same product varies every year over a certain period of time. The product's use environment is highly uncertain, and it is not possible to quickly analyze the product's adaptability to certain environmental conditions. The R&D cost is high and the cycle is relatively long.

[0003] The composite salt spray test machine is a comprehensive climatic condition test equipment that artificially simulates sodium chloride ion pollution. It can truly simulate the multi-comprehensive environmental test of anti-aging test of materials, parts, and electrical accessories used in coastal areas, port terminals, or items transported by sea, which are exposed to sodium chloride polluted air for a long time. For example, a composite salt spray corrosion test machine with application number CN201922394749.X, "the upper cover of the box body is closed with a box cover, and the box body is provided with a salt spray generating device, a sample rack, a temperature sensor and a heating device." The existing test chambers generally have a single function and cannot simulate complex environments, and it is difficult to meet the testing requirements of the corrosion effects of materials under complex natural climatic conditions. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a composite salt spray test machine.

[0005] The purpose of the utility model can be achieved by the following technical scheme: a composite salt spray test machine, including a box body, a box cover hinged on the box body, a test cabin provided in the box body, a sample rack provided in the test cabin, a salt spray test component provided on the inner side wall of the test cabin, a high and low temperature test component provided on one side of the test cabin, a humidification component provided in the box body, the humidification component is connected to the test cabin, and a heating component is provided at the bottom of the test cabin.

[0006] Preferably, the salt spray test assembly includes a brine tank, a first water pump, a mist spray tower, and a saturation barrel. The mist spray tower is provided with a first nozzle. The first water pump is used to pump the brine in the brine tank to the first nozzle. The saturation barrel is used to provide heated and humidified compressed air to the first nozzle. Arc grooves are provided on both sides of the mist spray tower, and adjustment plates for adjusting the size of the salt spray are clamped in the arc grooves.

[0007] Preferably, a spray assembly is provided on the box cover, the spray assembly comprises a spray pipe rotatably connected to the box cover, second nozzles are provided on the spray pipe at intervals, and a second water pump for pumping salt water to the second nozzles is provided in the box body.

[0008] Preferably, a swing assembly is provided on the box cover on one side of the spray pipe, the swing assembly includes a motor, an eccentric piece is installed on the output end of the motor, a slide rail is fixedly provided on one side of the eccentric piece, a rack is slidably connected to the slide rail, the eccentric piece is hinged to the rack through a connecting rod, and a gear meshing with the rack is installed on the spray pipe.

[0009] Preferably, the high and low temperature test assembly includes a hot and cold chamber and a refrigeration module and a heating module installed in the hot and cold chamber. A fan is provided above the hot and cold chamber, and the air outlet of the fan is connected to the test chamber. A return air outlet connected to the test chamber is provided at the bottom of the hot and cold chamber.

[0010] Preferably, the humidification component includes a humidifier, and the mist outlet channel of the humidifier is connected to the cold and hot chambers.

[0011] Preferably, the heating assembly includes heating tubes, and the heating tubes are distributed at intervals on the bottom of the test chamber.

[0012] Preferably, a salt mist collection port is provided in the test chamber, and a metering cylinder connected to the salt mist collection port is installed on the box body.

[0013] The beneficial effects of the utility model are as follows: the utility model simulates the exposure of the sample to salt spray, dryness, condensed water, and hot and humid environments by arranging a salt spray test component, a high and low temperature test component, a humidification component, and a heating component in the test chamber. A single test can be performed, or the above conditions can be coupled to form a complex alternating test. The utility model can more realistically simulate and enhance harsh natural environmental conditions, quickly detect and examine the corrosion resistance of materials, and can complete a variety of tests without moving samples, saving labor costs and installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0015] Figure 1 The utility model is a structural schematic diagram of a composite salt spray testing machine.

[0016] Figure 2 The utility model is a cross-sectional view of a composite salt spray testing machine.

[0017] Figure 3 The utility model is a schematic diagram of the test chamber structure of a composite salt spray test machine.

[0018] Figure 4 This is another structural schematic diagram of a composite salt spray testing machine of the utility model.

[0019] Figure 5 The utility model is a schematic diagram of the structure of a spray component of a composite salt spray test machine.

[0020] Figure 6 The utility model is a schematic diagram of the structure of a spray tower of a composite salt spray test machine.

[0021] The numbers shown in the figure are as follows: 1. box body; 2. box cover; 3. test chamber; 4. sample rack; 5. salt spray test assembly; 501. salt water tank; 502. first nozzle; 503. spray tower; 504. saturated barrel; 505. adjustment plate; 6. high and low temperature test assembly; 601. hot and cold chamber; 602. refrigeration module; 603. heating module; 604. fan; 7. humidification assembly; 701. humidifier; 702. mist outlet channel; 8. heating assembly; 801. heating pipe; 9. spray assembly; 901. spray pipe; 902. second nozzle; 903. motor; 904. eccentric piece; 905. slide rail; 906. rack; 907. connecting rod; 908. gear; 10. salt spray collection port. DETAILED DESCRIPTION

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] The following will be combined with specific embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0025] See also Figures 1 to 6 As shown, the structure of the utility model is: a composite salt spray test machine, including a box body 1, a box cover 2 is hinged on the box body 1, a test cabin 3 is arranged in the box body 1, a sample rack 4 is arranged in the test cabin 3, a salt spray test component 5 is arranged on the inner wall of the test cabin 3, a high and low temperature test component 6 is arranged on one side of the test cabin 3, a humidifying component 7 is arranged in the box body 1, the humidifying component 7 is connected with the test cabin 3, and a heating component 8 is arranged at the bottom of the test cabin 3. Specifically, the required test sample is placed on the sample rack 4, the box cover 2 is closed, and the simulated sample is exposed to condensed water, salt spray, dry, and hot and humid environment through the salt spray test component 5, the high and low temperature test component 6, the humidifying component 7, and the heating component 8. A single test can be carried out, and the above conditions can be coupled to form a complex alternating test, which can more realistically simulate and enhance the harsh natural environment conditions and quickly detect and inspect the corrosion resistance of the material.

[0026] like Figure 4 , Figure 6 As shown, the salt spray test assembly 5 includes a salt water tank 501, a first water pump, a mist spray tower 503, and a saturation barrel 504. The mist spray tower 503 is provided with a first nozzle 502. The first water pump is used to pump the salt water in the salt water tank 501 to the first nozzle 502. The saturation barrel 504 is used to provide the first nozzle 502 with compressed air after heating and humidification. Arc grooves are provided on both sides of the mist spray tower 503. The arc grooves are clamped with adjustment plates 505 for adjusting the size of the salt spray. Specifically, when the salt spray test is performed, the salt water in the salt water tank 501 is drawn to the first nozzle 502 by the first water pump for atomization. At the same time, the compressed air entering the first nozzle 502 enters the saturation barrel 504 for heating and humidification, and then bubbles are formed. The salt water overflows in the form of supply to the first nozzle 502, and then the first nozzle 502 can spray the salt water into the test chamber 3 in the form of spray, so as to simulate the salt spray environment. The first water pump is a peristaltic pump, which can ensure that the amount of salt water pumped to the first nozzle 502 is the same each time. The air supply pipe passes through the saturation barrel 504 when supplying air to the first nozzle 502, and the compressed air is heated and humidified by the saturation barrel 504, so as to prevent the compressed air from entering the test chamber 3 and causing temperature fluctuations and changes on the one hand, and prevent the unsaturated compressed air from passing through the first nozzle 502 for salt spraying. Salt spray crystallization occurs, and the adjustment plate 505 is used to adjust the size of the salt spray. The adjustment plate 505 is flipped up to increase the spray amount, and pressed down to reduce the spray amount.

[0027] like Figure 5As shown, a spray assembly 9 is provided on the box cover 2, and the spray assembly 9 includes a spray pipe 901 rotatably connected to the box cover 2, and second nozzles 902 are arranged at intervals on the spray pipe 901. A second water pump for pumping salt water to the second nozzle 902 is provided in the box body 1. A swing assembly is provided on the box cover 2 at one side of the spray pipe 901, and the swing assembly includes a motor 903. An eccentric piece 904 is installed at the output end of the motor 903, and a slide rail 905 is fixedly provided on one side of the eccentric piece 904. A rack 906 is slidably connected to the slide rail 905. The eccentric piece 904 is hinged to the rack 906 through a connecting rod 907. A gear 908 meshing with the rack 906 is installed on the spray pipe 901. Specifically, salt water is pumped to the second nozzle 902 by the second water pump to carry out a salt water spray test, and then the second nozzle 902 is driven to swing back and forth by the swing assembly to ensure that the fog falls on all sides in the test cabin 3 and the uniformity of the temperature and humidity under the fog is consistent.

[0028] like Figure 4 As shown, the high and low temperature test assembly 6 includes a hot and cold chamber 601 and a refrigeration module 602 and a heating module 603 installed in the hot and cold chamber 601. A fan 604 is arranged above the hot and cold chamber 601, and an air outlet of the fan 604 is connected to the test chamber 3. A return air outlet connected to the test chamber 3 is arranged at the bottom of the hot and cold chamber 601. Specifically, the temperature is increased by generating heat through the heating module 603, and the temperature is reduced through the refrigeration module 602. The heating module 603 is a heating wire, and the refrigeration module 602 is an evaporator and a refrigeration system. The heat emitted by the heating module 603 or the cold energy emitted by the refrigeration module 602 is used to send the hot air flow or the cold air flow in the hot and cold chamber 601 from the air outlet into the test chamber 3 through the fan 604, and then the original air flow in the test chamber 3 flows back to the hot and cold chamber 601 through the return air outlet.

[0029] like Figure 4 As shown, the humidifying component 7 includes a humidifier 701, and the mist outlet channel 702 of the humidifier 701 is connected to the cold and hot chamber 601. Specifically, the humidifier 701 sends moisture into the cold and hot chamber 601 through the mist outlet channel 702, and the humid hot air mixed with the hot air generated by the heat of the heating module 603 is sent into the test chamber 3 through the fan 604 to simulate the humid and hot conditions. The humidifier 701 can be turned off to simulate the dry conditions.

[0030] like Figure 4 As shown, the heating assembly 8 includes a heating tube 801, and the heating tube 801 is distributed at intervals at the bottom of the test chamber 3. Specifically, the heating tube 801 heats the bottom of the test chamber 3, so that the water at the bottom of the test chamber 3 evaporates to form hot steam. At the same time, the cold energy emitted by the refrigeration module 602 is sent to the test chamber 3 through the fan 604, thereby reducing the temperature of the sample and the wall of the test chamber 3. The hot steam condenses into condensed water when it encounters cold, simulating the condensed water test conditions.

[0031] like Figure 3As shown, a salt mist collecting port 10 is provided in the test chamber 3, and a metering cylinder connected to the salt mist collecting port 10 is installed on the box body 1. Specifically, the salt mist in the test chamber 3 enters the metering cylinder through the salt mist collecting port 10, and the amount of spray in the test chamber 3 is checked through the metering cylinder.

[0032] When in use, place the required test sample on the sample rack 4, close the box cover 2, and expose the simulated sample to condensed water, salt spray, dryness, and damp heat environment through the salt spray test component 5, the high and low temperature test component 6, the humidification component 7, and the heating component 8. The test can be carried out separately or the above conditions can be coupled to form a complex alternating test, which can more realistically simulate and enhance the harsh natural environment conditions and quickly detect and examine the corrosion resistance of the material.

[0033] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A composite salt spray test machine, characterized in that: comprising a box body (1); A box cover (2) is hinged to the box body (1); A test chamber (3) is arranged inside the box body (1); A sample rack (4), arranged inside the test chamber (3) and used for placing test samples; A salt spray test assembly (5) is arranged on the inner wall of the test chamber (3) to provide the test chamber (3) with a salt spray environment required for the test; A high and low temperature test assembly (6) is installed on one side of the test chamber (3) to provide the test chamber (3) with a constant temperature required for the test; A humidifying component (7) is arranged in the box body (1) and is in communication with the test chamber (3) to provide the test chamber (3) with a humid environment required for the test; The heating component (8) is arranged at the bottom of the test chamber (3) and cooperates with the high and low temperature test component (6) to provide the test chamber (3) with a condensed water environment required for the test.

2. A composite salt spray tester according to claim 1, characterized in that: The salt spray test assembly (5) comprises a salt water tank (501), a first water pump, a mist spray tower (503), and a saturation barrel (504); a first nozzle (502) is arranged in the mist spray tower (503); the first water pump is used to pump the salt water in the salt water tank (501) to the first nozzle (502); the saturation barrel (504) is used to provide the first nozzle (502) with compressed air that has been heated and humidified; arc grooves are arranged on both sides of the mist spray tower (503); and an adjustment plate (505) for adjusting the size of the salt spray is clamped in the arc groove.

3. A composite salt spray tester according to claim 2, characterized in that: The box cover (2) is provided with a spray assembly (9), the spray assembly (9) comprising a spray pipe (901) rotatably connected to the box cover (2), a second nozzle (902) being arranged at intervals on the spray pipe (901), and a second water pump for pumping salt water to the second nozzle (902) is arranged in the box body (1).

4. A composite salt spray tester according to claim 3, characterized in that: A swing assembly is provided on the box cover (2) at one side of the spray pipe (901), the swing assembly comprising a motor (903), an eccentric piece (904) being mounted on the output end of the motor (903), a slide rail (905) being fixedly mounted on one side of the eccentric piece (904), a rack (906) being slidably connected to the slide rail (905), the eccentric piece (904) being hinged to the rack (906) via a connecting rod (907), and a gear (908) meshing with the rack (906) being mounted on the spray pipe (901).

5. A composite salt spray tester according to claim 1, characterized in that: The high and low temperature test assembly (6) comprises a hot and cold chamber (601) and a refrigeration module (602) and a heating module (603) installed in the hot and cold chamber (601); a fan (604) is provided above the hot and cold chamber (601); an air outlet of the fan (604) is connected to the test chamber (3); and a return air outlet connected to the test chamber (3) is provided at the bottom of the hot and cold chamber (601).

6. A composite salt spray tester according to claim 5, characterized in that: The humidifying component (7) comprises a humidifier (701), and a mist outlet channel (702) of the humidifier (701) is in communication with the cold and hot chambers (601).

7. A composite salt spray tester according to claim 1, characterized in that: The heating assembly (8) comprises heating tubes (801), and the heating tubes (801) are distributed at intervals on the bottom of the test chamber (3).

8. A composite salt spray tester according to claim 1, characterized in that: A salt mist collection port (10) is provided in the test chamber (3), and a metering cylinder connected to the salt mist collection port (10) is installed on the box body (1).

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