Micro-arc oxidation reactor and micro-arc oxidation reaction device

Abstract

The utility model relates to the technical field of metal material surface treatment, and discloses a micro-arc oxidation reactor and a micro-arc oxidation reaction device. Wherein the micro-arc oxidation reactor comprises a reaction cylinder and an insulating vertical partition plate. A reaction cavity with an opening is defined by the reaction cylinder, and the reaction cylinder is used for containing a reaction solution; the insulating vertical separator has a through hole. The insulating vertical partition plate is arranged in the reaction cylinder along the axial direction and is used for dividing the reaction cavity into a first cavity and a second cavity which are communicated with each other; wherein one of the first cavity and the second cavity is used for placing an anode sample piece, and the other one of the first cavity and the second cavity is used for placing cathode metal. In the application, the anode sample piece and the cathode metal are separately placed, so that the anode sample piece and the cathode metal are prevented from being contacted under the condition that the reaction solution overflows, and the use safety of the equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal material surface treatment, for example, to a micro-arc oxidation reactor and a micro-arc oxidation reaction device. Background Art

[0002] Aluminum alloy is one of the most common and widely used structural materials in modern industry, and is widely used in aviation industry and automobile manufacturing. Compared with traditional steel, aluminum alloy has the advantages of low density, high specific strength, high specific modulus, and easy processing and forming. In addition, aluminum alloy also has excellent electrical and thermal conductivity. Moreover, aluminum alloy is easy to recycle and reuse, and has little pollution to the environment.

[0003] The surface of aluminum alloy has a dense oxide film, which can isolate oxygen and protect the aluminum matrix. However, the oxide film is very easy to be damaged, resulting in poor corrosion resistance of aluminum alloy. Especially in humid air or sulfur-containing atmospheres such as marine and industrial environments, severe chemical and electrochemical corrosion will occur on the surface of aluminum alloy. In addition, the hardness of aluminum alloy is low, which limits the application range of aluminum alloy.

[0004] In order to better protect the aluminum alloy substrate, surface treatment methods are usually used to modify the aluminum alloy, such as micro-arc oxidation, chemical conversion coating, electrochemical plating, organic coating, thermal spraying, etc. Among them, micro-arc oxidation has attracted attention due to its pollution-free and high production efficiency. As an emerging, environmentally friendly, efficient and energy-saving surface treatment technology, micro-arc oxidation technology has many advantages. The coating prepared by micro-arc oxidation technology is hard, wear-resistant, and has strong corrosion resistance, and can be used in many fields.

[0005] In the related art, a micro-arc oxidation reaction device is provided, which includes a reaction tank. Anode metal and anode metal are both placed in the reaction tank.

[0006] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0007] In the related art, anode metal and anode metal are directly placed in a reaction tank. The violent reaction caused by the strong voltage and current causes the solution in the reaction tank to surge, which can easily cause the anode metal and anode metal to touch each other, resulting in a short circuit and damage to the equipment. Utility Model Content

[0008] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0009] The disclosed embodiments provide a micro-arc oxidation reactor and a micro-arc oxidation reaction device, which separate the anode sample and the cathode metal to avoid contact between the anode sample and the cathode metal when the reaction solution surges, thereby improving the safety of the equipment.

[0010] In some embodiments, a micro-arc oxidation reactor is provided, comprising: a reaction barrel, defining a reaction chamber having an opening, the reaction barrel being used to hold a reaction solution; an insulating vertical partition, having a through hole, the insulating vertical partition being axially arranged in the reaction barrel, and being used to divide the reaction chamber into a first chamber and a second chamber that are connected; wherein one of the first chamber and the second chamber is used to place an anode sample, and the other of the first chamber and the second chamber is used to place a cathode metal.

[0011] Optionally, the micro-arc oxidation reactor also includes: an insulating transverse partition, which is located in the reaction tube and connected to the side of the insulating vertical partition away from the opening of the reaction chamber. The insulating transverse partition is provided with a through hole, and there is a gap between the insulating transverse partition and the bottom of the reaction tube.

[0012] Optionally, the insulating vertical partitions and the insulating horizontal partitions are each provided with a plurality of through holes.

[0013] Optionally, the micro-arc oxidation reactor also includes: an air pump including an exhaust port; a gas pipe, one end of which is connected to the exhaust port and the other end extends into the reaction chamber; wherein the air pump is used to transport gas into the reaction chamber to stir the reaction solution.

[0014] Optionally, the reaction cylinder is made of transparent insulating material.

[0015] In some embodiments, a micro-arc oxidation reaction device is also provided, including: a constant temperature device, including a heat exchange tank, which can hold a heat exchange liquid; a micro-arc oxidation reactor like any of the previous embodiments is arranged in the heat exchange tank.

[0016] Optionally, the micro-arc oxidation reaction device also includes: an anode wire, one end of which is connected to the anode sample; a cathode wire, one end of which is connected to the cathode metal; a power supply, including a live wire and a neutral wire, the live wire is connected to the other end of the anode wire, and the neutral wire is connected to the other end of the cathode wire.

[0017] Optionally, the micro-arc oxidation reaction device also includes: an insulating base, which is arranged on the constant temperature device; a conductive plate, which is arranged on the insulating base, and the conductive plate is connected to both the live wire and the anode wire; wherein the conductive plate is used to achieve electrical connection between the live wire and the anode wire.

[0018] Optionally, two insulating bases are provided, and the two insulating bases are respectively located on both sides of the heat exchange groove; the conductive plate is provided on the two insulating bases so that the conductive plate is arranged across the heat exchange groove, and the conductive plate is located above the micro-arc oxidation reactor.

[0019] Optionally, the insulating base is provided with a placement groove; the conductive plate is arranged in the placement groove.

[0020] The micro-arc oxidation reactor and micro-arc oxidation reaction device provided in the embodiments of the present disclosure can achieve the following technical effects:

[0021] In the disclosed embodiment, the reaction cylinder defines a reaction chamber having an opening, so that the reaction chamber can contain a reaction solution, and the anode sample and the cathode metal can be placed into the reaction chamber through the opening.

[0022] In the disclosed embodiment, the insulating vertical partition is axially arranged in the reaction cylinder, that is, the insulating vertical partition is arranged in the reaction cylinder, and the insulating vertical partition is arranged along the axial direction of the reaction cylinder. The reaction chamber is divided into a first chamber and a second chamber by the insulating vertical partition. The insulating vertical partition has a through hole, so that the first chamber and the second chamber can be connected, so that the reaction solution can flow between the first chamber and the second chamber.

[0023] In the disclosed embodiment, one of the first cavity and the second cavity is used to place the anode sample, and the other of the first cavity and the second cavity is used to place the cathode metal. That is, when the first cavity is used to place the anode sample, the second cavity is used to place the cathode metal. When the second cavity is used to place the anode sample, the first cavity is used to place the cathode metal. The anode sample and the cathode metal are separated and placed to avoid contact between the anode sample and the cathode metal when the reaction solution surges, thereby improving the safety of the device.

[0024] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0026] Figure 1 is a schematic diagram of the three-dimensional structure of a micro-arc oxidation reactor provided in an embodiment of the present disclosure;

[0027] Figure 2 is a schematic diagram of the arrangement relationship between the insulating transverse partition and the insulating vertical partition provided in the embodiment of the present disclosure;

[0028] Figure 3 is a schematic cross-sectional structural diagram of a reaction cylinder provided in an embodiment of the present disclosure;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of a micro-arc oxidation reaction device provided in an embodiment of the present disclosure;

[0030] Figure 5 yes Figure 4 A schematic diagram of a front view of a part of the structure of a micro-arc oxidation reaction device provided in the illustrated embodiment;

[0031] Figure 6 yes Figure 5 AA cross-sectional structure schematic diagram.

[0032] Reference numerals:

[0033] 100: micro-arc oxidation reactor; 101: reaction tube; 102: reaction chamber; 1021: first chamber; 1022: second chamber; 103: opening; 104: insulating vertical partition; 105: insulating horizontal partition; 106: air pump; 107: air transmission pipe; 108: gap;

[0034] 200: micro-arc oxidation reaction device; 201: constant temperature equipment; 202: heat exchange tank; 203: anode wire; 204: cathode wire; 205: live wire; 206: neutral wire; 207: insulating base; 2071: placement tank; 208: conductive plate;

[0035] 300: anode sample;

[0036] 400: cathode metal;

[0037] 500: Heat exchange liquid. DETAILED DESCRIPTION

[0038] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0039] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0041] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] Unless otherwise stated, the term "plurality" means two or more.

[0043] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0044] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0046] Combination Figures 1 to 3 As shown, an embodiment of the present disclosure provides a micro-arc oxidation reactor 100. The micro-arc oxidation reactor 100 includes a reaction tube 101 and an insulating vertical partition 104. The reaction tube 101 defines a reaction chamber 102 having an opening 103, and the reaction tube 101 is used to hold a reaction solution. The insulating vertical partition 104 has a through hole. The insulating vertical partition 104 is axially arranged in the reaction tube 101, and the insulating vertical partition 104 is used to divide the reaction chamber 102 into a first chamber 1021 and a second chamber 1022 that are connected. Among them, one of the first chamber 1021 and the second chamber 1022 is used to place the anode sample 300, and the other of the first chamber 1021 and the second chamber 1022 is used to place the cathode metal 400.

[0047] In this embodiment, the reaction cylinder 101 defines a reaction chamber 102 having an opening 103, so that the reaction chamber 102 can contain a reaction solution, and the anode sample 300 and the cathode metal 400 can be placed into the reaction chamber 102 through the opening 103. The reaction solution can form an electrode system for electrochemical reaction with the anode sample 300 and the cathode metal 400, which helps to form a high-quality ceramic film on the surface of the anode sample 300. The reaction solution can also take away the heat generated during the micro-arc oxidation reaction, thereby improving the reaction stability.

[0048] Optionally, the reaction solution uses a sodium hydroxide solution.

[0049] Optionally, the reaction solution adopts a silicate system solution.

[0050] In this embodiment, the insulating vertical partition 104 is axially arranged in the reaction tube 101, that is, the insulating vertical partition 104 is arranged in the reaction tube 101, and the insulating vertical partition 104 is arranged along the axial direction of the reaction tube 101. The reaction chamber 102 is divided into a first chamber 1021 and a second chamber 1022 by the insulating vertical partition 104. The insulating vertical partition 104 has a through hole to achieve communication between the first chamber 1021 and the second chamber 1022, so that the reaction solution can flow between the first chamber 1021 and the second chamber 1022, thereby improving the consistency of the solution environment in the first chamber 1021 and the second chamber 1022.

[0051] It should be noted that the insulating vertical partition 104 is made of high temperature resistant, acid and alkali resistant insulating material, such as polytetrafluoroethylene, which can avoid deformation during the experiment or processing and improve the effect of the micro-arc oxidation reaction.

[0052] It should be noted that the shape of the through hole of the insulating vertical partition 104 is not limited, for example, circular, square, polygonal, etc.

[0053] In this embodiment, one of the first cavity 1021 and the second cavity 1022 is used to place the anode sample 300, and the other of the first cavity 1021 and the second cavity 1022 is used to place the cathode metal 400. That is, when the first cavity 1021 is used to place the anode sample 300, the second cavity 1022 is used to place the cathode metal 400. When the second cavity 1022 is used to place the anode sample 300, the first cavity 1021 is used to place the cathode metal 400. The anode sample 300 and the cathode metal 400 are separated and placed to avoid the anode sample 300 and the cathode metal 400 from touching each other when the reaction solution is surging, thereby improving the safety of the device. In other words, this embodiment reduces the possibility of the cathode and cathode touching each other during a violent chemical reaction, thereby reducing the possibility of a short circuit and improving safety.

[0054] Optionally, the anode sample 300 is an aluminum sheet.

[0055] In this embodiment, the anode sample 300 is an aluminum sheet, so as to grow a ceramic film on the surface of the aluminum sheet and improve the surface hardness, wear resistance and corrosion resistance of the aluminum sheet.

[0056] Optionally, the anode sample 300 is a titanium sheet.

[0057] In this embodiment, the anode sample 300 is a titanium sheet, so as to grow a ceramic film on the surface of the titanium sheet and improve the surface hardness, wear resistance and corrosion resistance of the titanium sheet.

[0058] Optionally, the cathode metal 400 is a stainless steel plate.

[0059] In this embodiment, a stainless steel plate is used as the cathode, which has good corrosion resistance and low cost.

[0060] It should be noted that the volume of the reaction tube 101 is not limited and can be set according to the requirements of the micro-arc oxidation reaction.

[0061] Combination Figure 2 and Figure 3 As shown, in some embodiments, the micro-arc oxidation reactor 100 further includes an insulating transverse baffle 105. The insulating transverse baffle 105 is located in the reaction tube 101, and the insulating transverse baffle 105 is connected to a side of the insulating vertical baffle 104 away from the opening 103 of the reaction chamber 102. The insulating transverse baffle 105 is provided with a through hole. There is a gap 108 between the insulating transverse baffle 105 and the bottom of the reaction tube 101.

[0062] In this embodiment, the insulating transverse partition 105 is located in the reaction tube 101 , and is connected to a side of the insulating vertical partition 104 away from the opening 103 of the reaction chamber 102 , so that the insulating transverse partition 105 and the insulating vertical partition 104 are both located in the reaction tube 101 .

[0063] In this embodiment, the insulating baffle 105 is provided with a through hole, and there is a gap 108 between the insulating baffle 105 and the bottom of the reaction tube 101, which helps the reaction solution to flow between the first cavity 1021 and the second cavity 1022, thereby improving the consistency of the solution environment in the first cavity 1021 and the second cavity 1022, and further improving the quality of the ceramic film formed on the surface of the anode sample 300.

[0064] Combination Figure 2 and Figure 3 As shown, optionally, the insulating transverse partition 105 and the insulating vertical partition 104 are arranged vertically.

[0065] Combination Figure 3 As shown, optionally, the shape of the insulating transverse partition 105 is adapted to the shape of the cavity wall of the reaction chamber 102 , so that the circumferential surface of the insulating transverse partition 105 can contact the cavity wall of the reaction chamber 102 .

[0066] It should be noted that the insulating diaphragm 105 is made of insulating material that is resistant to high temperatures, acids and alkalis, such as polytetrafluoroethylene.

[0067] It should be noted that the shape of the through hole of the insulating transverse partition 105 is not limited, for example, circular, square, polygonal, etc.

[0068] Combination Figures 1 to 3 As shown, in some embodiments, the insulating vertical partition 104 and the insulating horizontal partition 105 are each provided with a plurality of through holes.

[0069] In this embodiment, the insulating vertical partition 104 and the insulating horizontal partition 105 are both provided with a plurality of through holes. That is, the number of through holes on the insulating vertical partition 104 is multiple, and the number of through holes on the insulating horizontal partition 105 is multiple. The multiple through holes can maximize the circulation of the reaction solution in the reaction cylinder 101, and improve the consistency of the solution environment in the first cavity 1021 and the second cavity 1022.

[0070] Combination Figure 1 As shown, in some embodiments, the micro-arc oxidation reactor 100 further includes an air pump 106 and an air delivery pipe 107. The air pump 106 includes an exhaust port. One end of the air delivery pipe 107 is connected to the exhaust port of the air pump 106, and the other end of the air delivery pipe 107 extends into the reaction chamber 102. The air pump 106 is used to deliver gas into the reaction chamber 102 to stir the reaction solution.

[0071] In this embodiment, one end of the gas pipe 107 is connected to the exhaust port of the air pump 106, and the other end of the gas pipe 107 extends into the reaction chamber 102, so that the air pump 106 can transport gas into the reaction chamber 102, thereby stirring the reaction solution in the reaction cylinder 101 and improving the temperature uniformity of the reaction solution.

[0072] Specifically, during the micro-arc oxidation process, the temperature of the reaction solution at different positions in the reaction tube 101 is quite different. The gas is delivered to the reaction chamber 102 by the gas pump 106, which plays a stirring role, improves the consistency of the temperature of the reaction solution at different positions, and then improves the uniformity of the temperature of the reaction solution, so as to improve the quality of the ceramic film grown on the surface of the anode sample 300.

[0073] Optionally, one end of the gas delivery pipe 107 is connected to the exhaust port of the air pump 106. The other end of the gas delivery pipe 107 passes through the through hole of the insulating diaphragm 105 and extends into the gap 108 between the insulating diaphragm 105 and the bottom of the reaction cylinder 101. This is to achieve the purpose of inflating the bottom of the reaction solution, stirring the reaction solution, and further improving the temperature uniformity of the reaction solution.

[0074] In some embodiments, the reaction tube 101 is made of a transparent insulating material.

[0075] In this embodiment, the reaction tube 101 is made of a transparent insulating material, which is convenient for observing the state of the micro-arc oxidation reaction and helps to improve the heat exchange efficiency between the reaction tube 101 and the external solution to take away the heat generated during the micro-arc oxidation reaction and improve the reaction stability.

[0076] Optionally, the reaction cylinder 101 is made of transparent glass.

[0077] Optionally, the reaction tube 101 is made of transparent plastic.

[0078] As a specific example, when the micro-arc oxidation reactor 100 of the present embodiment is used for a micro-arc oxidation reaction test, the entire reaction state of the micro-arc oxidation can be observed for a long time through a long-distance working microscope.

[0079] As another specific example, when the micro-arc oxidation reactor 100 of the present embodiment is used for micro-arc oxidation surface treatment processing of metal materials, it is helpful to observe the reaction state during the micro-arc oxidation processing.

[0080] Combination Figures 1 to 6 As shown, the embodiment of the present disclosure also provides a micro-arc oxidation reaction device 200. The micro-arc oxidation reaction device 200 includes a constant temperature device 201 and a micro-arc oxidation reactor 100 as in any of the previous embodiments. The constant temperature device 201 includes a heat exchange tank 202, and the heat exchange tank 202 can contain a heat exchange liquid 500. The micro-arc oxidation reactor 100 is disposed in the heat exchange tank 202.

[0081] In this embodiment, the micro-arc oxidation reaction device 200 includes a constant temperature device 201 and a micro-arc oxidation reactor 100 as in any of the previous embodiments. By using the constant temperature device 201 and the micro-arc oxidation reactor 100 in combination, the consistency of the reaction conditions in a low-temperature constant temperature environment is improved, thereby improving the quality of the ceramic film grown by the micro-arc oxidation reaction.

[0082] In this embodiment, the entire micro-arc oxidation reaction is carried out inside the reaction tube 101 , which avoids direct contact between the reaction solution in the micro-arc oxidation reactor 100 and the constant temperature device 201 , thereby improving the safety of the constant temperature device 201 .

[0083] Exemplarily, the micro-arc oxidation reactor 100 is fixedly placed in the heat exchange tank 202 of the constant temperature device 201. The heat exchange liquid 500 is placed in the heat exchange tank 202 of the constant temperature device 201. The constant temperature device 201 is adjusted to the target temperature. After the temperature of the heat exchange liquid 500 reaches the target temperature, the gas is input into the reaction cylinder 101 through the gas pump 106, and the anode sample 300 and the cathode metal 400 are respectively placed in the first cavity 1021 and the second cavity 1022 of the reaction cylinder 101 to perform the micro-arc oxidation reaction.

[0084] Optionally, the thermostatic device 201 is a low-temperature thermostatic device to achieve the stability of the temperature of the heat exchange liquid 500 in the heat exchange tank 202, thereby improving the heat exchange effect. The low-temperature constant temperature condition can reduce the number of cracks and holes on the surface of the ceramic layer generated by micro-arc oxidation, and improve the quality of the film layer.

[0085] In the related art, the micro-arc oxidation reaction device adopts a circulating water heat exchange system, which is difficult to achieve constant temperature and the heat exchange effect is not obvious. In this embodiment, the low-temperature constant temperature device and the micro-arc oxidation reactor 100 are used in combination, and the low-temperature constant temperature device provides a constant temperature environment for micro-arc oxidation, thereby improving the consistency of reaction conditions under the low-temperature constant temperature environment. The reaction solution in the micro-arc oxidation reactor 100 exchanges heat with the heat exchange liquid 500 in the heat exchange tank 202, thereby taking away the heat generated during the micro-arc oxidation process and improving the heat exchange effect.

[0086] Optionally, the temperature of the heat exchange liquid 500 ranges from -30°C to 100°C.

[0087] Optionally, the heat exchange liquid 500 is water.

[0088] Optionally, the heat exchange liquid 500 is pure water.

[0089] Combination Figures 4 to 6 As shown, in some embodiments, the micro-arc oxidation reaction device 200 further includes an anode wire 203, a cathode wire 204 and a power supply. One end of the anode wire 203 is connected to the anode sample 300. One end of the cathode wire 204 is connected to the cathode metal 400. The power supply includes a live wire 205 and a neutral wire 206. The live wire 205 is connected to the other end of the anode wire 203. The neutral wire 206 is connected to the other end of the cathode wire 204.

[0090] In this embodiment, one end of the anode wire 203 is connected to the anode sample 300, and the other end of the anode wire 203 is connected to the live wire 205 of the power supply, and the power supply is powered to form a micro-arc oxidation anode. One end of the cathode wire 204 is connected to the cathode metal 400, and the other end of the cathode wire 204 is connected to the neutral wire 206 of the power supply to form a micro-arc oxidation cathode. The micro-arc oxidation anode and the micro-arc oxidation cathode are separated by an insulating vertical partition 104, which reduces the possibility of the micro-arc oxidation anode and the micro-arc oxidation cathode touching each other during a violent chemical reaction, thereby reducing the possibility of a short circuit and improving the safety of the device.

[0091] Exemplarily, the anode wire 203 is connected to the anode sample 300 by bundling. The cathode wire 204 is connected to the cathode metal 400 by bundling.

[0092] It should be noted that the material of the anode wire 203 is not limited, for example, aluminum.

[0093] It should be noted that the material of the cathode wire 204 is not limited, for example, copper.

[0094] Combination Figures 4 to 6 As shown, in some embodiments, the micro-arc oxidation reaction device 200 further includes an insulating base 207 and a conductive plate 208. The insulating base 207 is disposed on the constant temperature device 201. The conductive plate 208 is disposed on the insulating base 207. The conductive plate 208 is connected to both the live wire 205 and the anode wire 203. The conductive plate 208 is used to realize the electrical connection between the live wire 205 and the anode wire 203.

[0095] In this embodiment, the insulating base 207 is disposed on the thermostatic device 201, and the conductive plate 208 is disposed on the insulating base 207. In other words, the conductive plate 208 is disposed on the thermostatic device 201 through the insulating base 207, thereby improving the safety of the thermostatic device 201.

[0096] In this embodiment, the insulating base 207 has an insulating property, which can effectively reduce the possibility of the conductive plate 208 being disposed on the constant temperature device 201 and causing damage to the device.

[0097] Optionally, the insulating base 207 is made of insulating material, such as rubber, ceramic, etc.

[0098] In this embodiment, the conductive plate 208 is connected to both the live wire 205 and the anode wire 203 , so that the live wire 205 and the anode wire 203 are electrically connected through the conductive plate 208 .

[0099] Exemplary, combined Figure 4 and Figure 5 As shown, the conductive plate 208 is disposed on the insulating base 207. The anode wire 203 is fixed to the middle position of the conductive plate 208 by bolts. One end of the conductive plate 208 is connected to the live wire 205 of the power supply by bolts. This helps to fix the anode sample 300 during the micro-arc oxidation reaction.

[0100] Exemplary, combined Figure 4 and Figure 5 As shown, the base is provided with a threaded hole, and the cathode wire 204 is connected to the neutral wire 206 of the power supply and fixed to the insulating base 207 by bolts. The mutual fixation of the neutral wire 206 of the power supply and the cathode wire 204 is beneficial to the fixed placement of the cathode metal 400 during the micro-arc oxidation reaction, so that there is a set distance between the cathode metal 400 and the anode sample 300, thereby improving the consistency of the micro-arc oxidation reaction.

[0101] Optionally, the conductive plate 208 includes a copper busbar.

[0102] Combination Figure 4 and Figure 5As shown, in some embodiments, two insulating bases 207 are provided. The two insulating bases 207 are respectively located on both sides of the heat exchange tank 202. The conductive plate 208 is disposed on the two insulating bases 207, so that the conductive plate 208 is arranged across the heat exchange tank 202, and the conductive plate 208 is located above the micro-arc oxidation reactor 100.

[0103] In this embodiment, two insulating bases 207 are respectively located on both sides of the heat exchange groove 202, and the conductive plate 208 is arranged on the two insulating bases 207. Specifically, the two ends of the conductive plate 208 are respectively arranged on the two insulating bases 207 to achieve stable support of the conductive plate 208 by the two insulating bases 207.

[0104] In this embodiment, the conductive plate 208 is arranged on two insulating bases 207 so that the conductive plate 208 is arranged across the heat exchange groove 202, and the conductive plate 208 is located above the micro-arc oxidation reactor 100, which can achieve smooth connection between the conductive plate 208 and the anode wire 203, thereby improving the stability of the anode sample 300 during the micro-arc oxidation process.

[0105] Combination Figure 4 and Figure 6 As shown, in some embodiments, the insulating base 207 is provided with a placement groove 2071 . The conductive plate 208 is disposed in the placement groove 2071 .

[0106] In this embodiment, the insulating base 207 is provided with a placement groove 2071 , and the conductive plate 208 is disposed in the placement groove 2071 , so that the conductive plate 208 can be stably installed.

[0107] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A micro-arc oxidation reactor, characterized in that: include: A reaction cylinder defines a reaction chamber having an opening, and the reaction cylinder is used to contain a reaction solution; An insulating vertical partition having a through hole, the insulating vertical partition being axially arranged in the reaction tube and used for dividing the reaction chamber into a first chamber and a second chamber that are connected; One of the first cavity and the second cavity is used for placing the anode sample, and the other of the first cavity and the second cavity is used for placing the cathode metal.

2. The micro-arc oxidation reactor according to claim 1, characterized in that: Also includes: The insulating transverse partition is located in the reaction tube and connected to the side of the insulating vertical partition away from the opening of the reaction chamber. The insulating transverse partition is provided with a through hole, and there is a gap between the insulating transverse partition and the bottom of the reaction tube.

3. The micro-arc oxidation reactor according to claim 2, characterized in that: The insulating vertical partitions and the insulating horizontal partitions are both provided with a plurality of through holes.

4. The micro-arc oxidation reactor according to any one of claims 1 to 3, characterized in that: Also includes: an air pump, including an exhaust port; A gas delivery pipe, one end of which is connected to the exhaust port and the other end of which extends into the reaction chamber; The air pump is used to transport gas into the reaction chamber to stir the reaction solution.

5. The micro-arc oxidation reactor according to any one of claims 1 to 3, characterized in that: The reaction tube is made of transparent insulating material.

6. A micro-arc oxidation reaction device, characterized in that: include: The constant temperature equipment includes a heat exchange tank, in which a heat exchange liquid can be contained; The micro-arc oxidation reactor according to any one of claims 1 to 5 is arranged in a heat exchange tank.

7. The micro-arc oxidation reaction device according to claim 6, characterized in that: Also includes: Anode wire, one end of which is connected to the anode sample; A cathode wire, one end of which is connected to the cathode metal; The power supply includes a live wire and a neutral wire, the live wire is connected to the other end of the anode wire, and the neutral wire is connected to the other end of the cathode wire.

8. The micro-arc oxidation reaction device according to claim 7, characterized in that: Also includes: Insulated base, set on constant temperature equipment; A conductive plate is arranged on the insulating base, and the conductive plate is connected to both the live wire and the anode wire; Among them, the conductive plate is used to realize the electrical connection between the live wire and the anode wire.

9. The micro-arc oxidation reaction device according to claim 8, characterized in that: Two insulating bases are provided, and the two insulating bases are respectively located on both sides of the heat exchange tank; The conductive plate is arranged on two insulating bases so that the conductive plate is arranged across the heat exchange groove, and the conductive plate is located above the micro-arc oxidation reactor.

10. The micro-arc oxidation reaction device according to claim 8 or 9, characterized in that: The insulating base is provided with a placement groove; The conductive plate is arranged in the placement slot.

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