Anticorrosion device for magnesium-lithium alloy surface

Abstract

The utility model relates to the technical field of magnesium-lithium alloy surface treatment, in particular to an anti-corrosion device for a magnesium-lithium alloy surface. Comprising a soaking frame, a support, a containing frame and a lifting assembly, the support is fixedly connected with the soaking frame and located above the soaking frame, the lifting assembly comprises a supporting base, a motor, a disc, a circular shaft, a movable frame and two lifting rods, the supporting base is fixedly connected with the support and located above the support, the motor is fixedly connected with the supporting base, the disc is fixedly connected with the output end of the motor, and the disc is fixedly connected with the output end of the circular shaft. The circular shaft is fixedly connected with the disc and is eccentrically arranged with the disc, the movable frame is arranged outside the circular shaft in a sleeving manner and is movably connected with the circular shaft, and the two ends of each lifting rod are fixedly connected with the movable frame and the placing frame respectively and movably penetrate through the bracket. The process is time-saving, labor-saving and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of magnesium-lithium alloy surface treatment technology, and in particular to an anti-corrosion device for magnesium-lithium alloy surfaces. Background Technology

[0002] Magnesium-lithium alloys belong to the magnesium-based alloy family and are currently the lightest metal structural materials used in industrial applications, often referred to as ultralight alloys. They possess advantages such as high specific strength and stiffness, high specific elastic modulus, strong impact load resistance, good resistance to shock and high-energy particle penetration, and good ductility and plasticity. However, because magnesium-lithium alloys are composed of magnesium and lithium elements, and both magnesium and lithium have relatively low chemical reactivity and standard electrode potentials, their corrosion resistance is poor. In the atmosphere, a loose, porous oxide film easily forms on the surface of magnesium-lithium alloys, making them susceptible to atmospheric corrosion and contact corrosion. Therefore, surface protection and corrosion prevention are necessary for magnesium-lithium alloys.

[0003] In existing patent CN113584470A, a method for surface anti-corrosion treatment of magnesium-lithium alloy is disclosed. This method involves first preparing a 0.1wt%–2wt% Na2CO3 solution as a hydrothermal reaction solution, then immersing the magnesium-lithium alloy in the solution. The reaction is carried out at a temperature of 110–130℃ for 1–3 hours, followed by cooling to room temperature. This results in a film layer on the magnesium-lithium alloy surface. By specifically limiting the hydrothermal reaction temperature, reaction time, reaction solution, and concentration, a dense and uniform anti-corrosion film layer is formed on the magnesium-lithium alloy substrate surface. This film layer is magnesium hydroxide, has a high film value, and exhibits strong anti-corrosion performance, thus achieving the purpose of protecting the magnesium-lithium alloy substrate and improving its corrosion resistance.

[0004] However, the current surface treatment of magnesium-lithium alloys involves directly immersing the alloy in a reaction solution in a container. This method is inconvenient for removing the alloy, is time-consuming and labor-intensive, and is difficult to operate. Utility Model Content

[0005] The purpose of this invention is to provide an anti-corrosion device for magnesium-lithium alloy surfaces, which aims to solve the technical problem that in the existing surface treatment of magnesium-lithium alloys, the magnesium-lithium alloy is directly immersed in the reaction solution in the container, which is inconvenient to remove the magnesium-lithium alloy, and the process is time-consuming, labor-intensive, and inconvenient to operate.

[0006] To achieve the above objectives, this utility model employs a magnesium-lithium alloy surface anti-corrosion device, comprising an immersion frame, a support, a placement frame, and a lifting assembly. The support is fixedly connected to the immersion frame and located above the immersion frame. The lifting assembly is mounted on the support, and the placement frame is connected to the lifting assembly.

[0007] The lifting assembly includes a support base, a motor, a disc, a circular shaft, a movable frame, and two lifting rods. The support base is fixedly connected to the bracket and is located above the bracket. The motor is fixedly connected to the support base. The disc is fixedly connected to the output end of the motor. The circular shaft is fixedly connected to the disc and is eccentrically positioned relative to the disc. The movable frame is fitted over the circular shaft and is movably connected to the circular shaft. Both ends of each lifting rod are fixedly connected to the movable frame and the placement frame, respectively, and both rods movably pass through the bracket.

[0008] The lifting assembly also includes a return spring, the two ends of which are fixedly connected to the bracket and the movable frame, respectively.

[0009] The lifting assembly further includes a protective cover and a connector. The protective cover is located above the bracket, and the connector is connected to both the protective cover and the bracket.

[0010] The connector includes two first magnetic blocks and two second magnetic blocks. The two first magnetic blocks are fixedly connected to the bracket and are located above the bracket. The two second magnetic blocks are fixedly connected to the protective cover and are magnetically attracted to the corresponding first magnetic blocks.

[0011] The anti-corrosion device for the magnesium-lithium alloy surface also includes an observation window, which is fixedly connected to the immersion frame and located on the outside of the immersion frame.

[0012] This utility model discloses an anti-corrosion device for the surface of magnesium-lithium alloys. When surface treating the magnesium-lithium alloy, a 0.1wt%–2wt% Na₂CO₃ solution is first prepared in an immersion frame as a hydrothermal reaction solution. The magnesium-lithium alloy is then placed in a placement frame. Next, the motor on the support base is activated, and the motor's output drives a disc to rotate. Because the circular shaft and the disc are eccentrically positioned, the disc moves within a movable frame via the circular shaft, pulling the movable frame downwards. The movable frame then causes two lifting rods to slide downwards within the bracket. Subsequently, the… The placement frame enters the immersion frame and reacts with the hydrothermal reaction solution. The hydrothermal reaction takes place at a temperature of 110–130°C for 1–3 hours. After cooling to room temperature, a film is formed on the surface of the magnesium-lithium alloy. After processing, the motor is started to rotate and reset the disc. The disc drives the circular axis to push the movable frame upward. The movable frame moves the two lifting rods upward, and the placement frame is exposed from the immersion frame. Subsequently, personnel can remove the processed magnesium-lithium alloy. In this way, it is possible to easily place and remove magnesium-lithium alloy from the container, which is time-saving, labor-saving, and easy to operate. Attached Figure Description

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the anti-corrosion device for magnesium-lithium alloy surfaces according to this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the protective cover of the anti-corrosion device for the surface of magnesium-lithium alloy of this utility model when opened.

[0016] Figure 3 This is a front view of the structure of the anti-corrosion device for magnesium-lithium alloy surfaces according to this utility model.

[0017] Figure 4 This is a side view of the structure of the anti-corrosion device for magnesium-lithium alloy surfaces according to this utility model.

[0018] 101-Soaking frame, 102-Bracket, 103-Placement frame, 104-Support base, 105-Motor, 106-Disc, 107-Round shaft, 108-Moving frame, 109-Lifting rod, 110-Reset spring, 111-Protective cover, 112-First magnetic block, 113-Second magnetic block, 114-Observation window. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please see Figures 1-4 This utility model provides an anti-corrosion device for magnesium-lithium alloy surfaces, including an immersion frame 101, a support 102, a placement frame 103, and a lifting assembly. The support 102 is fixedly connected to the immersion frame 101 and is located above the immersion frame 101. The lifting assembly is disposed on the support 102, and the placement frame 103 is connected to the lifting assembly.

[0021] The lifting assembly includes a support base 104, a motor 105, a disc 106, a circular shaft 107, a movable frame 108, and two lifting rods 109. The support base 104 is fixedly connected to the bracket 102 and is located above the bracket 102. The motor 105 is fixedly connected to the support base 104. The disc 106 is fixedly connected to the output end of the motor 105. The circular shaft 107 is fixedly connected to the disc 106 and is eccentrically positioned relative to the disc 106. The movable frame 108 is sleeved on the outside of the circular shaft 107 and is movably connected to the circular shaft 107. Both ends of each lifting rod 109 are fixedly connected to the movable frame 108 and the placement frame 103, respectively, and both rods movably pass through the bracket 102.

[0022] In this embodiment, when surface treating the magnesium-lithium alloy, a Na2CO3 solution with a concentration of 0.1wt% to 2wt% is first prepared in the immersion frame 101 as a hydrothermal reaction solution. Then, the magnesium-lithium alloy is placed in the placement frame 103. Next, the motor 105 on the support base 104 is activated. The output of the motor 105 drives the disc 106 to rotate. Since the circular shaft 107 is eccentrically positioned with respect to the disc 106, the disc 106 moves within the movable frame 108 via the circular shaft 107, pulling the movable frame 108 downwards. The movable frame 108 then causes the two lifting rods 109 to slide downwards within the bracket 102. Subsequently, the… The placement frame 103 enters the immersion frame 101 and reacts with the hydrothermal reaction solution. The hydrothermal reaction takes place at a temperature of 110-130°C for 1-3 hours. After cooling to room temperature, a film is formed on the surface of the magnesium-lithium alloy. After the treatment is completed, the motor 105 is started to rotate and reset the disc 106. The disc 106 drives the circular shaft 107 to push the movable frame 108 upward. The movable frame 108 drives the two lifting rods 109 to move upward, and the placement frame 103 is exposed from the immersion frame 101. Then, the personnel can take out the treated magnesium-lithium alloy. In this way, it is possible to easily put and take out the magnesium-lithium alloy container, which is time-saving, labor-saving and easy to operate.

[0023] Furthermore, the lifting assembly also includes a return spring 110, the two ends of which are fixedly connected to the bracket 102 and the movable frame 108, respectively.

[0024] In this embodiment, by providing the reset spring 110, the reset spring 110 can support and buffer the movable frame 108, preventing the movable frame 108 from moving too fast or falling rapidly due to equipment failure, thus ensuring the stability of the placement frame 103 entering the soaking frame 101.

[0025] Furthermore, the lifting assembly also includes a protective cover 111 and a connector. The protective cover 111 is located above the bracket 102, and the connector is connected to the protective cover 111 and the bracket 102 respectively.

[0026] In this embodiment, by setting the protective cover 111 above the bracket 102, the protective cover 111 is used to protect the motor 105, the disk 106 and other devices from exposure damage. The protective cover 111 is installed and removed above the bracket 102 via the connector.

[0027] Furthermore, the connector includes two first magnetic blocks 112 and two second magnetic blocks 113. The two first magnetic blocks 112 are fixedly connected to the bracket 102 and are located above the bracket 102. The two second magnetic blocks 113 are fixedly connected to the protective cover 111 and are magnetically attracted to the corresponding first magnetic blocks 112.

[0028] In this embodiment, a first magnetic block 112 and a second magnetic block 113 are provided. The protective cover 111 is fixed above the bracket 102 using the principle of magnetic attraction between the magnetic blocks. When the protective cover 111 is disassembled for device maintenance, the first magnetic block 112 and the second magnetic block 113 are separated by applying force to pull the protective cover 111 upwards, thereby separating the protective cover 111 from the bracket 102, allowing for the maintenance of the device on the bracket 102.

[0029] Furthermore, the anti-corrosion device for the magnesium-lithium alloy surface also includes an observation window 114, which is fixedly connected to the immersion frame 101 and located on the outside of the immersion frame 101.

[0030] In this embodiment, by providing the observation window 114 on the immersion frame 101, the processing status of the magnesium-lithium alloy in the immersion frame 101 can be easily observed using the observation window 114.

[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A corrosion protection device for magnesium-lithium alloy surfaces, characterized in that, The device includes a soaking frame, a support, a placement frame, and a lifting assembly. The support is fixedly connected to the soaking frame and located above the soaking frame. The lifting assembly is mounted on the support, and the placement frame is connected to the lifting assembly. The lifting assembly includes a support base, a motor, a disc, a circular shaft, a movable frame, and two lifting rods. The support base is fixedly connected to the bracket and is located above the bracket. The motor is fixedly connected to the support base. The disc is fixedly connected to the output end of the motor. The circular shaft is fixedly connected to the disc and is eccentrically positioned relative to the disc. The movable frame is fitted over the circular shaft and is movably connected to the circular shaft. Both ends of each lifting rod are fixedly connected to the movable frame and the placement frame, respectively, and both rods movably pass through the bracket.

2. The anti-corrosion device for magnesium-lithium alloy surfaces as described in claim 1, characterized in that, The lifting assembly also includes a return spring, the two ends of which are fixedly connected to the bracket and the movable frame, respectively.

3. The anti-corrosion device for magnesium-lithium alloy surfaces as described in claim 2, characterized in that, The lifting assembly also includes a protective cover and a connector. The protective cover is located above the bracket, and the connector is connected to the protective cover and the bracket respectively.

4. The anti-corrosion device for magnesium-lithium alloy surfaces as described in claim 3, characterized in that, The connector includes two first magnetic blocks and two second magnetic blocks. The two first magnetic blocks are fixedly connected to the bracket and are located above the bracket. The two second magnetic blocks are fixedly connected to the protective cover and are magnetically attracted to the corresponding first magnetic blocks.

5. The anti-corrosion device for magnesium-lithium alloy surfaces as described in claim 1, characterized in that, The anti-corrosion device for the magnesium-lithium alloy surface also includes an observation window, which is fixedly connected to the immersion frame and located on the outside of the immersion frame.

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