Material fatigue test environment box device used in different corrosion environments

Abstract

The invention discloses a material fatigue test environment box device used in different corrosion environments, which comprises a mounting base, the mounting base is connected with a vacuum pump and a mounting plate, the mounting plate is connected with a gas mixing box, a controller, an air dehumidifier, a heater, a wet air flow meter and a dry air flow meter, the gas mixing box is connected with a temperature and humidity sensor, and the temperature and humidity sensor is connected with a temperature and humidity sensor. The air dehumidifier is connected with the gas mixing box through a dry air flow meter, the heater is connected with a water tank, the water tank is connected with the gas mixing box through a wet air flow meter, the gas mixing box and the vacuum pump are connected with an environment box assembly through a multidirectional ventilation connector, and the temperature and humidity sensor, the air dehumidifier, the heater, the wet air flow meter and the dry air flow meter are all electrically connected with the controller. The device has the beneficial effects that the fatigue test of a sample piece in different humidity environments can be realized; the fatigue test of the sample piece in a vacuum environment can be realized; a fatigue machine chuck cannot be influenced, and the service life of a fatigue machine is effectively prolonged; environmental media do not leak, so that the experimental environment is effectively protected.

Description

Technical Field

[0001] The invention relates to the technical field of material testing equipment, and in particular to a material fatigue testing environment box device used in different corrosive environments. Background Art

[0002] In many engineering fields, such as aerospace, marine engineering, chemical engineering, and bridge construction, materials often need to be exposed to various corrosive environments while bearing cyclic loads. Under these complex working conditions, the fatigue performance of metal materials will be significantly affected, which may lead to structural failure, serious safety accidents and huge economic losses. Therefore, when doing fatigue tests on materials, it is necessary to consider not only simple mechanical loading, but also corrosion factors in the actual environment. However, some existing fatigue test environment chambers have many shortcomings, as follows:

[0003] The fatigue test environment that can be achieved by the existing fatigue test environment chamber is relatively single, and it is impossible to carry out fatigue tests in different corrosive environments; the existing fatigue test environment chamber usually includes the chuck of the fatigue machine, which easily causes the chuck to be corroded by the corrosive environment during the test; because one end of the fatigue machine connected to the actuator is constantly moving, the existing fatigue test environment chamber is prone to leakage of corrosive media, and the leakage of corrosive media will cause changes in the experimental environment, thereby causing damage to the fatigue equipment and harm to the health of the operators. At the same time, it will also reduce the effectiveness of the fatigue data.

[0004] In summary, there is an urgent need for a fatigue test environment chamber that can flexibly simulate different corrosion environments, has good sealing, and will not damage the fatigue machine chuck. Summary of the invention

[0005] In order to solve the above problems, especially to address the deficiencies in the prior art, the present invention provides an environmental chamber device for material fatigue testing in different corrosive environments that can solve the above problems.

[0006] To achieve the above purpose, the present invention adopts the following technical means:

[0007] A material fatigue test environment box device for different corrosive environments, comprising a mounting base, a vacuum pump and a mounting plate connected to the top of the mounting base, a gas mixing box, a controller, an air dehumidifier, a heater, a wet air flow meter, and a dry air flow meter connected to the mounting plate, the gas mixing box is connected to a temperature and humidity sensor, the air dehumidifier is connected to the gas mixing box through the dry air flow meter, the heater is connected to a water tank, the water tank is connected to the gas mixing box through the wet air flow meter, the gas mixing box and the vacuum pump are connected to an environment box assembly through a multi-directional ventilation joint, and the temperature and humidity sensor, the air dehumidifier, the heater, the wet air flow meter, and the dry air flow meter are all electrically connected to the controller;

[0008] The environmental chamber assembly includes two groups of sample connection supports distributed up and down and connected to an external fatigue machine, the opposite ends of the two groups of sample connection supports are respectively connected to symmetrically distributed sample clamping parts, the outer end of one group of sample connection supports is plugged with a top sealing base, and the outer end of the other group of sample connection supports is plugged with a bottom sealing base, the side of the bottom sealing base away from the sample connection support is connected with a retractable rubber ring, a visual environmental chamber shell is connected between the top sealing base and the bottom sealing base, and the side of the visual environmental chamber shell is connected with an air outlet valve and an air inlet valve connected to a multi-directional ventilation joint.

[0009] A further solution of the present invention is that a sealing ring is provided between the top sealing base and the sample connecting support and is sleeved on the outside of the sample connecting support, and a locking ring connected to the corresponding sample connecting support is provided on the side of the top sealing base away from the sample connecting support, and compression gaskets are respectively connected to both ends of the retractable rubber ring.

[0010] A further solution of the present invention is that the sample pressing member is connected to a sample centering adjustment plate.

[0011] A further solution of the present invention is that the shell of the visual environment box is made of high-strength glass.

[0012] A further solution of the present invention is that the ventilation ends of the multi-directional ventilation joint are all connected to on-off valves.

[0013] A further solution of the present invention is that the gas mixing box is connected to a pressure valve.

[0014] A further solution of the present invention is that the controller is a PLC controller.

[0015] A further solution of the present invention is that the air dehumidifier is connected to a barometer.

[0016] A further solution of the present invention is that the air inlet of the air dehumidifier is connected to an air filter.

[0017] A further solution of the present invention is that the vacuum pump is connected to a vacuum gauge.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention can realize fatigue test of samples in different humidity environments. The air dehumidifier can continuously output dry air, the heater can produce 100% saturated wet air by heating the water tank, and the controller can control the ratio of dry air and wet air through the air flow meter, thereby adjusting the ratio of dry air and saturated wet air in an automatic way, solving the problem of obtaining air with any humidity, and at the same time, it can also provide a large amount of stable supply, ensuring the stability of the test data.

[0020] 2. The present invention can realize fatigue testing of samples in a vacuum environment. The vacuum pump is connected to the environmental chamber assembly so that the vacuum pump can extract the air in the environmental chamber assembly, thereby creating a vacuum test environment.

[0021] 3. The sample connection support of the environmental chamber assembly of the present invention is connected to the external fatigue machine, so that during the entire test process, only the sample and the sample connection support are in the corrosive environment, which will not affect the chuck of the fatigue machine, effectively improving the service life of the fatigue machine.

[0022] 4. The retractable rubber ring of the present invention can offset the movement displacement of the fatigue machine, and can ensure that the environmental chamber assembly moves together with the chuck of the fatigue machine, thereby ensuring that the environmental medium in the environmental chamber assembly does not leak during the entire test process, effectively protecting the experimental environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the environmental chamber assembly of the present invention;

[0025] Reference numerals:

[0026] Environmental chamber components 1, multi-directional ventilation joint 2, on-off valve 3, mixing box 4, pressure valve 5, temperature and humidity sensor 6, controller 7, barometer 8, air dehumidifier 9, vacuum gauge 10, vacuum pump 11, mounting plate 12, mounting base 13, air filter 14, heater 15, water tank 16, wet air flow meter 17, dry air flow meter 18, locking ring 101, top sealing base 102, sealing ring 103, sample connecting support 104, sample pressing piece 105, sample centering adjustment piece 106, bottom sealing base 107, retractable rubber ring 108, pressing gasket 109, visual environmental chamber shell 110, outlet valve 111, inlet valve 112. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below 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 creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 1-2As shown, an environmental chamber device for material fatigue testing under different corrosive environments includes a mounting base 13, a vacuum pump 11 and a mounting plate 12 are connected to the top of the mounting base 13, a gas mixing box 4, a controller 7, an air dehumidifier 9, a heater 15, a wet air flow meter 17, and a dry air flow meter 18 are connected to the mounting plate 12, the gas mixing box 4 is connected to a temperature and humidity sensor 6, the air dehumidifier 9 is connected to the gas mixing box 4 through the dry air flow meter 18, the heater 15 is connected to a water tank 16, the water tank 16 is connected to the gas mixing box 4 through the wet air flow meter 17, the gas mixing box 4 and the vacuum pump 11 are connected to the environmental chamber assembly 1 through a multi-directional ventilation joint 2, and the temperature and humidity sensor 6, the air dehumidifier 9, the heater 15, the wet air flow meter 17, and the dry air flow meter 18 are all electrically connected to the controller 7;

[0030] The environmental chamber assembly 1 includes two groups of sample connection supports 104 distributed up and down and connected to an external fatigue machine, the opposite ends of the two groups of sample connection supports 104 are respectively connected to symmetrically distributed sample clamping members 105, the outer end of one group of sample connection supports 104 is plugged with a top sealing base 102, and the outer end of the other group of sample connection supports 104 is plugged with a bottom sealing base 107, the side of the bottom sealing base 107 away from the sample connection support 104 is connected to a retractable rubber ring 108, a visible environmental chamber shell 110 is connected between the top sealing base 102 and the bottom sealing base 107, and the side of the visible environmental chamber shell 110 is connected to an outlet valve 111 and an inlet valve 112 connected to the multi-directional ventilation joint 2.

[0031] Working principle:

[0032] The environmental chamber assembly 1 can stably position and connect the sample through the sample clamping member 105. The sample connecting supports 104 at the upper and lower ends of the environmental chamber assembly 1 are connected to the chuck of the fatigue machine, thereby transmitting force to the sample. In order to achieve sealing, the upper half of the visible environmental chamber shell 110 is sealed by the top sealing base 102, and the lower half is sealed by the bottom sealing base 107. At the same time, the bottom sealing base 107 is added with a retractable rubber ring 108. The retractable rubber ring 108 can offset the displacement of the fatigue machine and ensure that the environmental chamber assembly 1 moves with the chuck of the fatigue machine. The visible environmental chamber shell 110 is convenient for detecting the state of the fatigue sample on the one hand, and is also conducive to observing the interaction between the corrosive medium and the sample on the other hand. The outlet valve 111 and the inlet valve 112 can ensure the stable maintenance of the corrosive medium in the gas environment.

[0033] The air dehumidifier 9 can ensure that sufficient dry air can be continuously output. The water tank 16 can be heated by the heater 15 to generate 100% saturated wet air. The controller 7 can control the ratio of dry air and saturated wet air through the wet air flow meter 17 and the dry air flow meter 18, so that air with any humidity can be generated for testing. The generated wet air is continuously introduced into the air inlet valve 112 of the environmental chamber assembly 1 through the hose, so that the sample is tested in a constant environment.

[0034] The vacuum pump 11 works independently and is also connected to the air inlet valve 112 of the environmental chamber assembly 1 through a hose. At this time, the vacuum pump 11 will extract the air in the environmental chamber assembly 1 to create a vacuum test environment.

[0035] Example 2

[0036] like Figure 1-2 As shown, an environmental chamber device for material fatigue testing under different corrosive environments includes a mounting base 13, a vacuum pump 11 and a mounting plate 12 are connected to the top of the mounting base 13, a gas mixing box 4, a controller 7, an air dehumidifier 9, a heater 15, a wet air flow meter 17, and a dry air flow meter 18 are connected to the mounting plate 12, the gas mixing box 4 is connected to a temperature and humidity sensor 6, the air dehumidifier 9 is connected to the gas mixing box 4 through the dry air flow meter 18, the heater 15 is connected to a water tank 16, the water tank 16 is connected to the gas mixing box 4 through the wet air flow meter 17, the gas mixing box 4 and the vacuum pump 11 are connected to the environmental chamber assembly 1 through a multi-directional ventilation joint 2, and the temperature and humidity sensor 6, the air dehumidifier 9, the heater 15, the wet air flow meter 17, and the dry air flow meter 18 are all electrically connected to the controller 7;

[0037] The environmental chamber assembly 1 includes two groups of sample connection supports 104 distributed up and down and connected to an external fatigue machine, the opposite ends of the two groups of sample connection supports 104 are respectively connected to symmetrically distributed sample clamping members 105, the outer end of one group of sample connection supports 104 is plugged with a top sealing base 102, and the outer end of the other group of sample connection supports 104 is plugged with a bottom sealing base 107, the side of the bottom sealing base 107 away from the sample connection support 104 is connected to a retractable rubber ring 108, a visible environmental chamber shell 110 is connected between the top sealing base 102 and the bottom sealing base 107, and the side of the visible environmental chamber shell 110 is connected to an outlet valve 111 and an inlet valve 112 connected to the multi-directional ventilation joint 2.

[0038] A sealing ring 103 is provided between the top sealing base 102 and the sample connection support 104 and is sleeved on the outside of the sample connection support 104. A locking ring 101 connected to the corresponding sample connection support 104 is provided on the side of the top sealing base 102 away from the sample connection support 104. Compression gaskets 109 are respectively connected to the two ends of the retractable rubber ring 108. The top sealing base 102 is pressed by the locking ring 101, and the top sealing base 102 squeezes the sealing ring 103, which can effectively improve the sealing of the top of the visual environment box housing 110; the retractable rubber ring 108 is compressed by the compression gasket 109, which can effectively improve the sealing of the bottom of the visual environment box housing 110.

[0039] The sample pressing member 105 is connected with a sample centering adjustment piece 106. The sample centering adjustment piece 106 can facilitate the sample to be located at the center of the sample pressing members 105 at both ends during clamping, so as to facilitate the user to observe the sample experiment.

[0040] The visual environment box housing 110 is made of high-strength glass, which has good light transmittance, wear resistance and corrosion resistance. The visual environment box housing 110 made of high-strength glass has a long service life.

[0041] Example 3

[0042] like Figure 1-2 As shown, an environmental chamber device for material fatigue testing under different corrosive environments includes a mounting base 13, a vacuum pump 11 and a mounting plate 12 are connected to the top of the mounting base 13, a gas mixing box 4, a controller 7, an air dehumidifier 9, a heater 15, a wet air flow meter 17, and a dry air flow meter 18 are connected to the mounting plate 12, the gas mixing box 4 is connected to a temperature and humidity sensor 6, the air dehumidifier 9 is connected to the gas mixing box 4 through the dry air flow meter 18, the heater 15 is connected to a water tank 16, the water tank 16 is connected to the gas mixing box 4 through the wet air flow meter 17, the gas mixing box 4 and the vacuum pump 11 are connected to the environmental chamber assembly 1 through a multi-directional ventilation joint 2, and the temperature and humidity sensor 6, the air dehumidifier 9, the heater 15, the wet air flow meter 17, and the dry air flow meter 18 are all electrically connected to the controller 7;

[0043] The environmental chamber assembly 1 includes two groups of sample connection supports 104 distributed up and down and connected to an external fatigue machine, the opposite ends of the two groups of sample connection supports 104 are respectively connected to symmetrically distributed sample clamping members 105, the outer end of one group of sample connection supports 104 is plugged with a top sealing base 102, and the outer end of the other group of sample connection supports 104 is plugged with a bottom sealing base 107, the side of the bottom sealing base 107 away from the sample connection support 104 is connected to a retractable rubber ring 108, a visible environmental chamber shell 110 is connected between the top sealing base 102 and the bottom sealing base 107, and the side of the visible environmental chamber shell 110 is connected to an outlet valve 111 and an inlet valve 112 connected to the multi-directional ventilation joint 2.

[0044] The ventilation ends of the multi-directional ventilation joint 2 are all connected with the on-off valve 3. It is convenient for users to complete vacuum experiments and humidity experiments, and effectively improve the sealing during the experiment.

[0045] The gas mixing box 4 is connected to a pressure valve 5. The pressure valve 5 can facilitate the user to monitor the pressure of the gas mixing box 4 outputting any humidity gas, and effectively improve the working efficiency and working effect of the gas mixing box 4.

[0046] The controller 7 is a PLC controller. The PLC controller can be programmed and has good control functions, which can effectively improve the working efficiency and working effect of the controller 7.

[0047] The air dehumidifier 9 is connected with a barometer 8. The barometer 8 can facilitate the user to monitor the pressure of the dry air in the air dehumidifier 9, and effectively improve the working efficiency and working effect of the air dehumidifier 9.

[0048] The air inlet of the air dehumidifier 9 is connected with an air filter 14. The air filter 14 can filter the air entering the air dehumidifier 9, effectively improving the use effect of the air dehumidifier 9.

[0049] The vacuum pump 11 is connected to a vacuum gauge 10. The vacuum gauge 10 can facilitate the user to monitor the vacuum degree of the vacuum pump 11, and effectively improve the working efficiency and working effect of the vacuum pump 11.

[0050] The examples given in the present invention are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A material fatigue test environment chamber device for different corrosive environments, characterized in that: The invention comprises a mounting base (13), the top of which is connected to a vacuum pump (11) and a mounting plate (12), the mounting plate (12) being connected to a gas mixing box (4), a controller (7), an air dehumidifier (9), a heater (15), a wet air flow meter (17), and a dry air flow meter (18), the gas mixing box (4) being connected to a temperature and humidity sensor (6), the air dehumidifier (9) being connected to the gas mixing box (4) via a dry air flow meter (18), the heater (15) being connected to a water tank (16), the water tank (16) being connected to the gas mixing box (4) via a wet air flow meter (17), the gas mixing box (4) and the vacuum pump (11) being connected to an environmental chamber assembly (1) via a multi-directional ventilation joint (2), and the temperature and humidity sensor (6), the air dehumidifier (9), the heater (15), the wet air flow meter (17), and the dry air flow meter (18) being electrically connected to the controller (7); The environmental chamber assembly (1) comprises two groups of sample connection supports (104) distributed up and down and connected to an external fatigue machine, the opposite ends of the two groups of sample connection supports (104) are respectively connected to symmetrically distributed sample pressing members (105), the outer end of one group of sample connection supports (104) is plugged with a top sealing base (102), and the outer end of the other group of sample connection supports (104) is plugged with a bottom sealing base (107), the side of the bottom sealing base (107) away from the sample connection support (104) is connected to a retractable rubber ring (108), a visual environmental chamber shell (110) is connected between the top sealing base (102) and the bottom sealing base (107), and the side of the visual environmental chamber shell (110) is connected to an outlet valve (111) and an inlet valve (112) connected to a multi-directional ventilation joint (2).

2. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 1, characterized in that: A sealing ring (103) is provided between the top sealing base (102) and the sample connection support (104) and is sleeved on the outside of the sample connection support (104); a locking ring (101) connected to the corresponding sample connection support (104) is provided on the side of the top sealing base (102) away from the sample connection support (104); and compression gaskets (109) are respectively connected to the two ends of the retractable rubber ring (108).

3. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 1 is characterized in that: The sample pressing piece (105) is connected to a sample centering adjustment piece (106).

4. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 1, characterized in that: The visual environment box shell (110) is made of high-strength glass.

5. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 1 is characterized in that: The ventilation ends of the multi-directional ventilation joint (2) are all connected to an on-off valve (3).

6. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 1, characterized in that: The gas mixing box (4) is connected to a pressure valve (5).

7. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 1, characterized in that: The controller (7) is a PLC controller.

8. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 1, characterized in that: The air dehumidifier (9) is connected to a barometer (8).

9. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 8, characterized in that: The air inlet of the air dehumidifier (9) is connected to an air filter (14).

10. The environmental chamber device for material fatigue testing in different corrosive environments according to claim 1, characterized in that: The vacuum pump (11) is connected to a vacuum gauge (10).

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