Self-adaptive metal material environment corrosion test method and device

Abstract

The invention discloses a self-adaptive metal material environment corrosion test method and device, firstly, an environment monitoring module is arranged in a natural actual corrosion environment to dynamically monitor the actual corrosion environment in real time to obtain monitoring data of the actual corrosion environment, and the monitoring data comprises temperature, humidity, gas components and concentration; monitoring data of an actual corrosion environment are received through a control module, and test parameters in the simulation environment test box are controlled, so that the temperature, the humidity and the concentration of one or more gases in the simulation environment test box are dynamically kept consistent with the temperature, the humidity and the concentration of one or more gases in the actual corrosion environment; therefore, the performance of the metal material in the simulation environment test box in different corrosion environments is tested. The invention also discloses a test device.

Description

Technical Field

[0001] The invention relates to the technical field of metal material corrosion resistance testing, and in particular to a test method and device for self-adapting metal material environmental corrosion. Background Art

[0002] Environmental corrosion is an important influencing factor for equipment or products used in special environments such as high temperature, low temperature, high altitude and corrosive environments. The corrosion of related equipment and products often occurs in their metal material components. The corrosion resistance of metal material components directly affects the performance and life of the product.

[0003] For equipment and products used in extreme environments, workers cannot stay in extreme environments for a long time to conduct corrosion tests on metal materials. Therefore, it is very difficult to implement corrosion tests on product metal parts and metal materials in extreme environments.

[0004] Therefore, developing an adaptive metal material environmental corrosion test method and device to test the corrosion of metal materials in special environments is an engineering practical problem that needs to be solved urgently. Summary of the invention

[0005] One of the purposes of the present invention is to provide a test method for adaptive environmental corrosion of metal materials, which is used to adaptively simulate corrosion environments and test the corrosion resistance of metal materials under different environmental conditions, and the test results are accurate and reliable.

[0006] The above-mentioned purpose of the present invention is achieved through the following technical scheme: a test method for adaptive environmental corrosion of metal materials, firstly, by setting an environmental monitoring module in the actual corrosion environment in nature, real-time dynamic monitoring of the actual corrosion environment is performed to obtain monitoring data of the actual corrosion environment, and the monitoring data includes temperature, humidity, gas composition and concentration; then, the monitoring data of the actual corrosion environment is received through the control module, and the test parameters in the simulated environmental test box are controlled so that the temperature, humidity and concentration of one or some gases in the simulated environmental test box are dynamically consistent with the temperature, humidity and concentration of one or some gases in the actual corrosion environment, so as to realize adaptive regulation of the simulated environmental test box to the actual corrosion environment, thereby testing the performance of the metal material in the simulated environmental test box under different corrosion environments, and achieving the purpose of completing the natural environmental corrosion test of metal materials in the laboratory.

[0007] The second purpose of the present invention is to provide a test device for adaptive metal material environmental corrosion, which can adaptively simulate the corrosion environment and test the corrosion resistance of metal materials under different environmental conditions.

[0008] The above-mentioned purpose of the present invention is achieved through the following technical scheme: an adaptive metal material environmental corrosion test device, characterized in that: the device includes an environmental monitoring module, a control module and a simulated environmental test chamber; the environmental monitoring module is arranged in an actual corrosion environment in nature, and performs real-time dynamic monitoring of the actual corrosion environment to obtain monitoring data of the actual corrosion environment, and the monitoring data includes temperature, humidity, gas composition and concentration; the control module is wirelessly connected to the environmental monitoring module and the simulated environmental test chamber respectively, and the control module can receive the monitoring data of the actual corrosion environment, and control the test parameters in the simulated environmental test chamber, so that the temperature, humidity and concentration of one or some gases in the simulated environmental test chamber are dynamically consistent with the temperature, humidity and concentration of one or some gases in the actual corrosion environment, so as to realize the adaptive regulation of the simulated environmental test chamber on the actual corrosion environment, thereby testing the performance of the metal material in the simulated environmental test chamber under different corrosion environments, and achieving the purpose of completing the natural environmental corrosion test of the metal material in the laboratory.

[0009] In the present invention, the environment monitoring module has several sensors, specifically: the environment monitoring module includes a humidity sensor, a temperature sensor, a barometer and a gas composition detector, which are respectively used to monitor the humidity, temperature, pressure, gas composition and concentration in the actual corrosion environment in real time; the simulated environment test box includes a temperature controller, a humidity controller, and a gas concentration controller, and the temperature controller, humidity controller and gas concentration controller are all arranged in the simulated environment test box, and are respectively used to control the temperature, humidity and gas concentration in the simulated environment test box. The gas concentration controller is also connected to a gas cylinder, and the gas cylinder is used to input the gas required for the test into the simulated environment test box. The gas concentration controller controls the gas concentration in the simulated environment test box by controlling the flow rate of the gas cylinder.

[0010] In the present invention, the gases detected by the gas composition detector include SO2, SO3, HCl, NH3, H2S, CO2, and O2.

[0011] In the present invention, the frequency range of the environmental monitoring module sending monitoring data to the control module is 5s-30min; the control frequency of the control module on the simulated environmental test box is consistent with the frequency of the environmental monitoring module sending monitoring data to the control module.

[0012] In the present invention, the control module is built on a cloud network platform and is connected to the environment monitoring module and the simulated environment test box via a wireless network.

[0013] In the present invention, the gas input by the gas cylinder includes SO2, SO3, HCl, NH3, H2S, CO2, O2, N2 and inert gas.

[0014] The present invention uses an environmental monitoring module in an actual environment to perform real-time dynamic monitoring of the corrosion environment, and transmits environmental data to a simulated environmental test box through a control module and controls the parameters of the simulated environmental test box, thereby realizing adaptive regulation of the simulated environmental test box to the actual corrosion environment, thereby testing the performance of metal materials under different corrosion environments. The test results are accurate and reliable, and the purpose of completing the natural environment corrosion test of metal materials in the laboratory is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Figure 1 It is a schematic structural diagram of a test device for self-adapting to environmental corrosion of metal materials according to the present invention;

[0017] In the figure:

[0018] 1. Environmental monitoring module; 2. Humidity sensor; 3. Temperature sensor; 4. Barometer; 5. Gas composition detector; 6. Control module; 7. Simulated environmental test chamber; 8. Temperature controller; 9. Humidity controller; 10. Gas concentration controller; 11. Gas cylinder; 12. Test sample

[0019] Figure 2 It is the metallographic structure diagram of the sample after the test of the present invention;

[0020] Figure 3 It is the scanning electron microscope characterization result of the corrosion product after the test sample of the present invention is tested;

[0021] Figure 4 It is the XRD test result after the test sample test in the present invention;

[0022] Figure 5 is the corrosion rate calculation result of the test sample after the test in the present invention;

[0023] Figure 6 It is the metallographic structure diagram after the comparative sample test in the present invention;

[0024] Figure 7 It is the scanning electron microscope characterization result of the corrosion product after the comparative sample test in the present invention;

[0025] Figure 8 It is the XRD test result after the comparative sample test in the present invention;

[0026] Fig. 9 is the corrosion rate calculation result after the comparative sample test in the present invention;

[0027] Among them, the comparison samples and the test samples are brass samples of the same specifications. The comparison samples are tested under the actual natural service environment, and the test samples are tested in the laboratory. DETAILED DESCRIPTION

[0028] The test method for environmental corrosion of adaptive metal materials in this embodiment first sets an environmental monitoring module under an actual corrosion environment in nature to perform real-time dynamic monitoring of the actual corrosion environment to obtain monitoring data of the actual corrosion environment, the monitoring data including temperature, humidity, gas composition and concentration; then receives the monitoring data of the actual corrosion environment through a control module, and controls the test parameters in a simulated environmental test chamber to make the temperature, humidity and concentration of SO2 and H2S in the simulated environmental test chamber dynamically consistent with the temperature, humidity and concentration of SO2 and H2S in the actual corrosion environment, thereby realizing adaptive regulation of the simulated environmental test chamber on the actual corrosion environment, thereby testing the performance of the metal material in the simulated environmental test chamber under different corrosion environments, and achieving the purpose of completing the natural environmental corrosion test of the metal material in the laboratory.

[0029] like Figure 1 The test device for adaptive environmental corrosion of metal materials shown in the figure includes an environmental monitoring module 1, a control module 6 and a simulated environmental test box 7; the environmental monitoring module 1 is set in an actual corrosion environment in nature, and performs real-time dynamic monitoring of the actual corrosion environment to obtain monitoring data of the actual corrosion environment, and the monitoring data includes temperature, humidity, gas composition and concentration; the control module 6 is built on a cloud network platform, and the control module 6 is connected to the environmental monitoring module 1 and the simulated environmental test box 7 through a wireless network respectively. The control module 6 can receive the monitoring data of the actual corrosion environment and control the test parameters in the simulated environmental test box 7 so that the temperature, humidity and concentration of SO2 and H2S in the simulated environmental test box 7 are dynamically consistent with the temperature, humidity and concentration of SO2 and H2S in the actual corrosion environment, so as to realize the adaptive regulation of the simulated environmental test box 7 on the actual corrosion environment, thereby testing the performance of the metal material in the simulated environmental test box 7 under different corrosion environments, and achieving the purpose of completing the natural environmental corrosion test of metal materials in the laboratory.

[0030] In this embodiment, the environmental monitoring module 1 includes a humidity sensor 2, a temperature sensor 3, a barometer 4 and a gas composition detector 5, which are respectively used to monitor the humidity, temperature, pressure, gas composition and concentration in the actual corrosion environment in real time. The gases detected by the gas composition detector 5 include SO2 and H2S; the simulated environment test box 7 includes a temperature controller 8, a humidity controller 9, and a gas concentration controller 10. The temperature controller 8, the humidity controller 9 and the gas concentration controller 10 are all arranged in the simulated environment test box 7, and are respectively used to control the temperature, humidity and gas concentrations of SO2 and H2S in the simulated environment test box 7. The gas concentration controller 10 is also connected to a gas cylinder 11. The gas pipe of the gas cylinder 11 extends into the simulated environment test box 7 and is connected to the gas concentration controller 10. The gas cylinder 11 is used to input the gas required for the test into the simulated environment test box 7. The gas concentration controller 10 controls the gas concentrations of SO2 and H2S in the simulated environment test box 7 by controlling the flow rate of the gas cylinder 11.

[0031] As a variation of this embodiment, the gas detected by the gas component detector 5 may include SO2, SO3, HCl, NH3, H2S, CO2, and O2. The gas input by the gas cylinder 11 may include SO2, SO3, HCl, NH3, H2S, CO2, O2, N2, and inert gas.

[0032] In this embodiment, the frequency of the environmental monitoring module 1 sending monitoring data to the control module 6 is 30 minutes, and the frequency can also be selected within the range of 5s-30 minutes; the control frequency of the control module 6 on the simulated environmental test chamber 7 is consistent with the frequency of the environmental monitoring module 1 sending monitoring data to the control module 6.

[0033] In this embodiment, a brass angled test piece is used as the test sample 12, and the test time of the test sample 12 is 90 days. The material, size and test time of the comparison sample and the test sample are the same.

[0034] like Figure 2 , 6 As shown, the brass sample tested in the embodiment of the present invention and the brass sample in the actual environment have the same metallographic structure and cracking conditions.

[0035] like Figure 3 , 7 As shown, the brass sample tested in the embodiment of the present invention and the brass sample in the actual environment have the same corrosion product morphology, and the constituent elements and element ratios of the corrosion products are the same.

[0036] like Figure 4 , 8 As shown, the brass sample tested in the embodiment of the present invention and the brass sample in the actual environment have the same corrosion product phase, and the corrosion products of the two samples are the same.

[0037] like Figure 5 , 9 As shown, the annual corrosion rate of the brass sample tested in the embodiment of the present invention and the brass sample in the actual environment is substantially the same.

[0038] In summary, the adaptive metal material environmental corrosion test method and device of the present invention can achieve the effect of real-time simulation of the real engineering environment. The test results in the embodiment are consistent with the test results in the real environment, achieving the purpose of completing the natural environmental corrosion test of metal materials in the laboratory.

[0039] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. A test method for adaptive environmental corrosion of metal materials. First, an environmental monitoring module is set in an actual corrosion environment in nature to perform real-time dynamic monitoring of the actual corrosion environment to obtain monitoring data of the actual corrosion environment, and the monitoring data includes temperature, humidity, gas composition and concentration; then the monitoring data of the actual corrosion environment is received by a control module, and the test parameters in a simulated environmental test box are controlled so that the temperature, humidity and concentration of one or some gases in the simulated environmental test box are dynamically consistent with the temperature, humidity and concentration of one or some gases in the actual corrosion environment, so as to realize adaptive regulation of the simulated environmental test box to the actual corrosion environment, thereby testing the performance of the metal material in the simulated environmental test box under different corrosion environments, and achieving the purpose of completing the natural environmental corrosion test of the metal material in the laboratory.

2. A test device for self-adapting to environmental corrosion of metal materials, characterized by: The device comprises an environment monitoring module (1), a control module (6) and a simulated environment test box (7); the environment monitoring module (1) is arranged in an actual corrosion environment in nature, performs real-time dynamic monitoring of the actual corrosion environment, and obtains monitoring data of the actual corrosion environment, wherein the monitoring data comprises temperature, humidity, gas composition and concentration; the control module (6) is wirelessly connected to the environment monitoring module (1) and the simulated environment test box (7) respectively, and the control module (6) can receive the monitoring data of the actual corrosion environment, and control the test parameters in the simulated environment test box (7) so that the temperature, humidity and concentration of one or some gases in the simulated environment test box (7) are dynamically consistent with the temperature, humidity and concentration of one or some gases in the actual corrosion environment, thereby realizing adaptive regulation of the simulated environment test box (7) to the actual corrosion environment, thereby testing the performance of the metal material in the simulated environment test box (7) under different corrosion environments, and achieving the purpose of completing the natural environment corrosion test of the metal material in the laboratory.

3. The self-adaptive metal material environmental corrosion test device according to claim 2, characterized in that: The environmental monitoring module (1) comprises a humidity sensor (2), a temperature sensor (3), a barometer (4) and a gas composition detector (5), which are respectively used to monitor the humidity, temperature, pressure, gas composition and concentration in the actual corrosive environment in real time; the simulated environmental test box (7) comprises a temperature controller (8), a humidity controller (9) and a gas concentration controller (10), the temperature controller (8), the humidity controller (9) and the gas concentration controller (10) are all arranged in the simulated environmental test box (7), and are respectively used to control the temperature, humidity and gas concentration in the simulated environmental test box (7); the gas concentration controller (10) is also connected to a gas cylinder (11), the gas cylinder (11) is used to input the gas required for the test into the simulated environmental test box (7), and the gas concentration controller (10) controls the gas concentration in the simulated environmental test box (7) by controlling the flow rate of the gas cylinder (11).

4. The self-adaptive metal material environmental corrosion testing device according to claim 3, characterized in that: The gases detected by the gas composition detector (5) include SO2, SO3, HCl, NH3, H2S, CO2, and O2.

5. The self-adaptive metal material environmental corrosion testing device according to claim 3, characterized in that: The frequency range of the environmental monitoring module (1) sending monitoring data to the control module (6) is 5 seconds to 30 minutes; the control frequency of the control module (6) on the simulated environmental test box (7) is consistent with the frequency of the environmental monitoring module (1) sending monitoring data to the control module (6).

6. The self-adaptive metal material environmental corrosion testing device according to claim 3, characterized in that: The control module (6) is built on a cloud network platform and is connected to the environment monitoring module (1) and the simulated environment test box (7) via a wireless network.

7. The self-adaptive metal material environmental corrosion testing device according to claim 3, characterized in that: The gas input into the gas cylinder (11) includes SO2, SO3, HCl, NH3, H2S, CO2, O2, N2 and inert gas.

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