CN220367188U - Alternating magnetic field corrosion experimental device for metal material - Google Patents

Alternating magnetic field corrosion experimental device for metal material Download PDF

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Publication number
CN220367188U
CN220367188U CN202321835038.1U CN202321835038U CN220367188U CN 220367188 U CN220367188 U CN 220367188U CN 202321835038 U CN202321835038 U CN 202321835038U CN 220367188 U CN220367188 U CN 220367188U
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magnetic field
corrosion
alternating magnetic
electromagnet
experimental device
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张欣
黄连鹏
陶嘉豪
熊伊铭
余瑞
徐诗瑶
吴磊
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Hohai University HHU
Nanjing Vocational University of Industry Technology NUIT
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Hohai University HHU
Nanjing Vocational University of Industry Technology NUIT
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Abstract

The utility model discloses a metal material alternating magnetic field corrosion experimental device, which comprises: an electromagnet, wherein an accommodating space is arranged in the electromagnet; the corrosion experiment container is arranged in the accommodating space, and is filled with a corrosion solution; and the electrode to be tested is placed in the corrosion solution and is connected with corrosion testing equipment. Because only constitute by single electro-magnet, and corrode the experimental container setting and hold the space in the inside of electro-magnet, not only can provide stable alternating magnetic field, the cost is economical simultaneously, and the energy consumption is lower.

Description

Alternating magnetic field corrosion experimental device for metal material
Technical Field
The utility model relates to the technical field of metal material experiments, in particular to a metal material alternating magnetic field corrosion experiment device.
Background
Along with the rapid development of science and technology in China, the more serious electromagnetic waves generated in special areas such as airports, high-voltage substations and the like interfere with communication and networks, the electromagnetic waves generated by a large number of communication cables also influence the surrounding environment. Corrosion of metal materials can obviously reduce the mechanical properties of the metal materials, such as strength, plasticity, toughness and the like, destroy the geometric shape of metal components, increase the abrasion among parts, deteriorate the physical properties of electricity, optics and the like, shorten the service life of equipment and even cause disastrous accidents, such as fire, explosion and the like. And the materials in the magnetic field are used, the addition of the electromagnetic field can change the ion movement and substance exchange rules when the metal component is corroded, so that the corrosion process becomes more complex. The effect of the magnetic field on the metal corrosion process still has a lot of outstanding scientific problems, so that scientific researchers are required to continuously explore the mass transfer characteristics and the action rules between the metal and the corrosion medium in the magnetic field environment.
At present, related researches are mostly limited to static uniform magnetic fields, mainly to obtain unidirectional magnetic fields through permanent magnets, and research on influence rules of the unidirectional magnetic fields on corrosion of metal materials. For testing the influence of alternating magnetic field on metal corrosion, the existing alternating magnetic field generating device mainly comprises a double-regulating electromagnet, and the device has the characteristic of good magnetic field directivity. However, in order to obtain a stronger magnetic field, the distance between the two electromagnets is smaller, which has higher requirements on the sizes of the sample and the corrosive solution container tested in the electromagnet, and meanwhile, the double-regulating electromagnet has two electromagnets, so that the manufacturing cost is higher and the energy consumption is higher.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
The purpose of the utility model is that: the alternating magnetic field corrosion experimental device for the metal material can provide a stable alternating magnetic field, and is economical in cost and low in energy consumption.
In order to achieve the above object, the present utility model provides an alternating magnetic field corrosion test device for a metal material, comprising:
an electromagnet, wherein an accommodating space is arranged in the electromagnet;
the corrosion experiment container is arranged in the accommodating space, and is filled with a corrosion solution;
and the electrode to be tested is placed in the corrosion solution and is connected with corrosion testing equipment.
Preferably, the exterior of the electromagnet is provided with a cooling layer.
Preferably, the cooling layer is provided with a water inlet pipe and a water outlet pipe.
Preferably, the cooling layer is provided externally with a protective shielding.
Preferably, a magnetic field strength detecting unit is further provided in the accommodation space.
Preferably, the magnetic field strength detection unit is a tesla meter.
Preferably, the bottom of the corrosion test vessel is provided with a sample stage.
Preferably, the sample stage is made of quartz glass.
Preferably, the corrosion test vessel is a beaker.
Preferably, the device further comprises an external power source connected to the electromagnet.
The utility model has at least the following beneficial effects:
according to the utility model, the electromagnet is used for providing a stable alternating magnetic field, the accommodation space is arranged in the electromagnet, the corrosion experiment container is arranged in the accommodation space, the corrosion experiment container is filled with the corrosion solution, the electrode to be tested is placed in the corrosion solution, the electrode to be tested is connected with the corrosion test equipment, and after the electromagnet is electrified, the metal material alternating magnetic field corrosion experiment can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic structural diagram of an experimental device for metal material alternating magnetic field corrosion in an embodiment of the utility model;
FIG. 2 is a graph showing the polarization of an electrode to be tested under a first alternating magnetic field in an embodiment of the present utility model;
FIG. 3 is a graph showing the polarization of an electrode to be tested under a second alternating magnetic field in an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present utility model provides an apparatus for testing metal material alternating magnetic field corrosion, which includes:
the electromagnet 1, the inside of electromagnet 1 has accommodation space;
the corrosion experiment container 2 is arranged in the accommodating space, and the corrosion experiment container 2 is filled with a corrosion solution 3;
the electrode to be tested 4 is placed in the corrosion solution 3, and the electrode to be tested 4 is connected with corrosion testing equipment.
In the embodiment of the utility model, the electromagnet 1 is a spiral coil layer formed by winding a copper wire 11 wrapped by an insulating cover, an accommodating space is arranged in the electromagnet 1, and a stable alternating magnetic field can be provided in the accommodating space after the electromagnet 1 is electrified. The diameter, length and number of windings of the copper wire 11 can be determined according to the maximum magnetic field and frequency required by the electromagnet 1. The inside accommodation space of this electro-magnet 1 is provided with corrosion experiment container 2, and corrosion experiment container 2 is interior to be poured with corrosion solution 3, wherein, corrosion solution 3 can be chemical corrosion solution or fused salt, like sodium chloride, also can be liquid alloy, like plumbum bismuth alloy etc.. It will be appreciated that the dimensions of the corrosion test vessel 2 are smaller than the dimensions of the accommodation space inside the electromagnet 1, and that, due to the single electromagnet structure, the dimensions of the accommodation space inside thereof are relatively large, allowing testing of large-sized samples. The electrode to be tested 4 is made of a metal material to be tested, the electrode to be tested 4 is placed in the corrosion solution 3, the electrode to be tested 4 is connected with corrosion testing equipment (not shown), and after the electromagnet is electrified, the alternating magnetic field corrosion experiment of the metal material can be realized. Wherein the corrosion testing device may be an electrochemical workstation.
As can be seen from the above, the metal material alternating magnetic field corrosion experimental device provided by the embodiment of the utility model provides a stable alternating magnetic field through the electromagnet, the inside of the electromagnet is provided with the accommodation space, the accommodation space is internally provided with the corrosion experimental container, the corrosion experimental container is filled with the corrosion solution, the electrode to be tested is placed in the corrosion solution, the electrode to be tested is connected with the corrosion testing equipment, and after the electromagnet is electrified, the metal material alternating magnetic field corrosion experiment can be realized.
As a preferred embodiment of the utility model, the outside of the electromagnet 1 is provided with a cooling layer 5. In the experimental process, the copper wire 11 wrapped by the insulating skin is easy to generate heat after being electrified, so that equipment is short-circuited and burnt in a short time, and the electromagnet 1 is cooled through the cooling layer 5, so that the service time of the experimental device can be prolonged.
Further, in the above embodiment, the cooling layer 5 is provided with the water inlet pipe 51 and the water outlet pipe 52. Wherein the water inlet pipe 51 is connected with an external water source, and the water outlet pipe 52 is connected with an external water discharge position. Cooling water is introduced into the cooling layer 5 through the water inlet pipe 51, flows in the cooling layer 5, cools the electromagnet 1, and is then discharged through the water outlet pipe 52.
As a preferred embodiment of the utility model, the outside of the cooling layer 5 is provided with a protective shielding 6. Wherein, the inside of the protective shielding layer 6 is filled with a filler with shielding effect for protecting the influence of the magnetic field on the environment outside the device and further insulating.
As a preferred embodiment of the present utility model, a magnetic field strength detecting unit 7 is also provided in the accommodation space. In the experimental process, the corrosion rate of the electrode 4 to be tested under different magnetic field frequencies and different magnetic field intensities needs to be tested, and the required alternating magnetic field frequency and intensity can be adjusted by changing the energizing current of the electromagnet 1. Wherein the magnetic field strength detection unit 7 can detect the magnetic field strength in the accommodation space inside the electromagnet 1.
In a specific implementation, the magnetic field strength detection unit 7 is a tesla meter, and preferably a digital display tesla meter is used.
As a preferred embodiment of the present utility model, the bottom of the corrosion test vessel 2 is provided with a sample stage 8, and the sample stage 8 may be used for placing the corrosion test vessel 2. It will be appreciated that the dimensions of the sample stage 8 are likewise smaller than the dimensions of the receiving space inside the electromagnet 1.
Further, in the above embodiment, the sample stage 8 is made of quartz glass. Because the quartz glass has better chemical stability, the quartz glass can not participate in chemical reaction in corrosion experiments, and can prevent interference to experimental results.
As a preferred embodiment of the present utility model, the corrosion test vessel 2 is a beaker.
As a preferred embodiment of the utility model, the device further comprises an external power supply 9 connected to the electromagnet, the external power supply 9 being adapted to provide the electromagnet 1 with the required energizing current.
In order to verify the effectiveness of the alternating magnetic field corrosion experimental device for metal materials provided by the embodiment of the utility model, the following description is made with reference to specific embodiments.
Referring to fig. 2 and 3, fig. 2 is a graph showing polarization of an electrode to be tested under a first alternating magnetic field in an embodiment of the present utility model; FIG. 3 is a graph showing the polarization of an electrode to be tested under a second alternating magnetic field in an embodiment of the present utility model. Wherein the electrode to be tested adopts Al-3.0Mg alloy, the alternating magnetic field conditions in the figure 2 are 0T/0Hz, 0.010T/40Hz, 0.035T/40Hz and 0.060T/40Hz, and the alternating magnetic field conditions in the figure 3 are 0T/0Hz, 0.035T/40Hz, 0.035T/50Hz and 0.035T/60Hz. It can be seen that the alternating magnetic field can reduce the corrosion rate of the Al-3.0Mg alloy, and the stronger the magnetic field strength of the alternating magnetic field is, the slightly increased the corrosion rate of the Al-3.0Mg alloy is; the stronger the magnetic field frequency of the alternating magnetic field, the lower the corrosion rate of the Al-3.0Mg alloy.
It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. An alternating magnetic field corrosion experimental device for a metal material, comprising:
the electromagnet is internally provided with an accommodating space;
the corrosion experiment container is arranged in the accommodating space, and is filled with a corrosion solution;
and the electrode to be tested is placed in the corrosion solution and is connected with corrosion testing equipment.
2. The alternating magnetic field corrosion experimental device for metal materials according to claim 1, wherein a cooling layer is arranged outside the electromagnet.
3. The alternating magnetic field corrosion experimental device for metal materials according to claim 2, wherein the cooling layer is provided with a water inlet pipe and a water outlet pipe.
4. The alternating magnetic field corrosion test apparatus for metallic materials as recited in claim 2, wherein a protective shielding layer is provided outside the cooling layer.
5. The alternating magnetic field corrosion experimental device for metal materials according to claim 1, wherein a magnetic field intensity detection unit is further arranged in the accommodating space.
6. The alternating magnetic field corrosion experimental device for metal materials according to claim 5, wherein the magnetic field strength detection unit is a tesla meter.
7. The metal material alternating magnetic field corrosion experiment device according to claim 1, wherein a sample stage is arranged at the bottom of the corrosion experiment container.
8. The apparatus according to claim 7, wherein the sample stage is made of quartz glass.
9. The apparatus according to claim 1, wherein the corrosion test vessel is a beaker.
10. The apparatus of claim 1, further comprising an external power source connected to the electromagnet.
CN202321835038.1U 2023-07-12 2023-07-12 Alternating magnetic field corrosion experimental device for metal material Active CN220367188U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321835038.1U CN220367188U (en) 2023-07-12 2023-07-12 Alternating magnetic field corrosion experimental device for metal material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321835038.1U CN220367188U (en) 2023-07-12 2023-07-12 Alternating magnetic field corrosion experimental device for metal material

Publications (1)

Publication Number Publication Date
CN220367188U true CN220367188U (en) 2024-01-19

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Family Applications (1)

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CN202321835038.1U Active CN220367188U (en) 2023-07-12 2023-07-12 Alternating magnetic field corrosion experimental device for metal material

Country Status (1)

Country Link
CN (1) CN220367188U (en)

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