Equipment for electrolytic stripping of copper-nickel-chromium coating

By combining multiple electrolytic cells and cleaning tanks, along with various electrolytes and automated components, the problem of low removal efficiency and effectiveness of copper-nickel-chromium plating in existing technologies has been solved, achieving efficient and safe plating removal.

CN224227283UActive Publication Date: 2026-05-12NINGBO DUJINHUI ENVIRONMENTAL PROTECTION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DUJINHUI ENVIRONMENTAL PROTECTION CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing technologies cannot effectively remove copper-nickel-chromium plating from the surface of metal workpieces, resulting in low electrolytic removal efficiency and effectiveness.

Method used

The design employs a combination of multiple electrolytic cells and cleaning tanks, using various electrolytes to electrolytically remove the copper-nickel-chromium plating from the surface of metal workpieces. The process is automated through lifting and rotating components, avoiding mutual interference between different electrolytes.

Benefits of technology

It improves the effectiveness and efficiency of electrolytic stripping, ensures complete removal of the coating, and reduces cross-contamination of the electrolyte through the cleaning tank, thus protecting the environment and ensuring operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses equipment for electrolyzing and removing a copper-nickel-chromium coating, and particularly relates to the technical field of electrolysis equipment, which comprises a base, a top plate is arranged above the base, a plurality of anode lifting appliances distributed in an annular array are fixedly arranged at the bottom of the top plate, electrolytic tanks and cleaning tanks are fixedly arranged at the top of the base, and the number of the electrolytic tanks and the number of the cleaning tanks are the same as that of the anode lifting appliances. Two cathode plates are fixedly arranged in each electrolytic tank, a round hole is formed in the center of the top of the top plate, a cylinder penetrates through the interior of the round hole, and the multiple electrolytic tanks and the multiple cleaning tanks are distributed around the cylinder at intervals. According to the utility model, the copper-nickel-chromium coating on the surface of the metal workpiece is subjected to electrolytic stripping treatment through the plurality of electrolytic tanks, and the copper-nickel-chromium coating on the surface of the metal workpiece is treated by adopting a plurality of electrolyte stripping modes, so that the electrolytic stripping effect can be improved, and the metal workpiece can be cleaned by the cleaning tank between the two adjacent electrolytic tanks; and mutual influence among various electrolytes is avoided, so that the electrolytic stripping effect can be further improved.
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Description

Technical Field

[0001] This utility model relates to the field of electrolysis equipment technology, and more specifically to an equipment for electrolytically removing copper-nickel-chromium plating. Background Technology

[0002] Electrolysis is a process that utilizes electrochemical reactions occurring at the interface between electrodes (which act as electron conductors) and electrolytes (which act as ion conductors) to synthesize chemicals, manufacture high-purity substances, and treat material surfaces. When an electric current is applied, cations in the electrolyte move towards the cathode, absorb electrons, undergo reduction reactions, and generate new substances; anions in the electrolyte move towards the anode, release electrons, undergo oxidation reactions, and generate new substances.

[0003] For example, the electrolytic treatment equipment disclosed in the prior art, CN222411980U, provides a convenient electrolytic treatment equipment for polishing metal workpieces through a component consisting of a pool body, an electrode body, and a filter body. It also has an electrolyte filtration mechanism, which helps the workpiece to be simultaneously immersed in the electrolyte for electrolytic treatment.

[0004] However, the existing technology described above still has the following problems in use: When traditional electrolytic equipment removes copper-nickel-chromium plating from metal workpieces, since the copper-nickel-chromium plating contains chromium, nickel, and copper plating, it is impossible to effectively remove all three plating layers when processed in a single electrolytic cell, resulting in low electrolytic removal effect and efficiency. Based on this, the present invention provides a device for electrolytic removal of copper-nickel-chromium plating with high effect and efficiency. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides an apparatus for electrolytically removing copper-nickel-chromium plating. This apparatus uses multiple electrolytic cells to electrolytically remove the copper-nickel-chromium plating from the surface of a metal workpiece, employing various electrolytes to treat the plating. This improves the electrolytic removal effect. A cleaning tank between adjacent electrolytic cells cleans the metal workpiece, preventing mutual interference between the different electrolytes and further enhancing the electrolytic removal effect, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electrolytic removal device for copper-nickel-chromium plating, comprising a base, a top plate above the base, a plurality of anode hangers arranged in a circular array fixed at the bottom of the top plate, an electrolytic cell and a cleaning cell of the same number as the anode hangers fixed at the top of the base, two cathode plates fixed inside each electrolytic cell, a circular hole at the center of the top of the top plate, a cylinder penetrating through the circular hole, the plurality of electrolytic cells and the plurality of cleaning cells being distributed at intervals around the cylinder, the cylinder being connected to the top plate via a lifting assembly, and the cylinder being mounted on the base via a rotating assembly.

[0007] In a preferred embodiment, each anode hanger includes a mounting plate with a plurality of evenly distributed hooks fixed to the bottom of the mounting plate. The arrangement of multiple hooks at the bottom of the mounting plate can increase the throughput.

[0008] In a preferred embodiment, the lifting assembly includes two linear modules. Two symmetrically distributed rectangular slots are formed on the outer wall surface of the cylinder. The two linear modules are fixed in the two rectangular slots respectively. The slides of the two linear modules are fixed to the inner wall of the circular hole. The top plate is lifted and lowered by driving the linear modules, thereby improving the electrolytic removal efficiency of the metal workpiece.

[0009] In a preferred embodiment, the rotating assembly includes a motor, and a mounting hole is provided at the center of the top of the base. The motor is detachably fixed in the mounting hole, and a connecting plate is fixed at the top of the motor output shaft. The connecting plate is fixed to the bottom of the cylinder. The cylinder is driven to rotate by the motor and the connecting plate, thereby improving the efficiency of electrolytic removal of metal workpieces.

[0010] In a preferred embodiment, each electrolytic cell and each cleaning tank have a drain valve fixedly inserted through their outer walls. The multiple drain valves are connected to the interior of the electrolytic cell and the cleaning tank, which facilitates the discharge of electrolyte and cleaning solution from the electrolytic cell and the cleaning tank, and makes replacement convenient.

[0011] In a preferred embodiment, the outer wall surface of the base is provided with a plurality of heat dissipation vents arranged in a ring array. Each heat dissipation vent is connected to the mounting hole. The heat dissipation vents enable air circulation inside the mounting hole, thereby improving the heat dissipation effect of the motor and preventing the motor from overheating and affecting its normal operation.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model uses multiple electrolytic cells to electrolytically remove the copper-nickel-chromium plating on the surface of metal workpieces. It employs multiple electrolytes to treat the copper-nickel-chromium plating on the surface of metal workpieces, thereby improving the electrolytic removal effect. Furthermore, the cleaning tank between two adjacent electrolytic cells can clean the metal workpieces, avoiding mutual interference between the various electrolytes, which further improves the electrolytic removal effect.

[0014] 2. The cylinder is driven to rotate by a motor and connecting plate, which enables continuous processing of metal workpieces and improves the efficiency of electrolytic removal. The linear module drives the automatic lifting and lowering of the metal workpieces, which further improves the processing efficiency of metal workpieces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lifting device moving downwards according to this utility model;

[0017] Figure 3 This is a top view of the electrolytic cell and cleaning tank of this utility model;

[0018] Figure 4 This is a sectional view of the base of this utility model;

[0019] Figure 5 This is a top view of the overall structure of this utility model.

[0020] The attached diagram is labeled as follows: 1. Base; 2. Top plate; 3. Anode hanger; 4. Electrolytic cell; 5. Cleaning tank; 6. Cathode plate; 7. Circular hole; 8. Cylindrical column; 9. Lifting assembly; 10. Rotating assembly; 11. Drain valve; 12. Heat dissipation port;

[0021] 31. Mounting plate; 32. Lifting hook;

[0022] 91. Linear module; 92. Rectangular slot;

[0023] 101. Motor; 102. Mounting hole; 103. Connecting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Refer to the instruction manual appendix Figures 1-5 This utility model provides an equipment for electrolytically removing copper-nickel-chromium plating, including a base 1, a top plate 2 above the base 1, and a plurality of anode hangers 3 arranged in a ring array fixed at the bottom of the top plate 2. Specifically, the anode hangers 3 are connected to the positive terminal of a power supply through wires. Each anode hanger 3 includes a mounting plate 31, and a plurality of evenly distributed hooks 32 are fixed at the bottom of the mounting plate 31. The mounting plate 31 and the hooks 32 can be made of conductive and corrosion-resistant materials, such as titanium alloy, stainless steel or lead-plated copper.

[0026] The base 1 is fixedly equipped with an electrolytic cell 4 and a cleaning tank 5, the same number as the anode hanger 3. The electrolytic cell 4 and the cleaning tank 5 can be made of corrosion-resistant materials, such as polypropylene, polyvinyl chloride or fiberglass. Each electrolytic cell 4 is fixedly equipped with two cathode plates 6. A circular hole 7 is opened at the center of the top of the top plate 2. A cylinder 8 passes through the circular hole 7. Multiple electrolytic cells 4 and multiple cleaning tanks 5 are distributed around the cylinder 8 at intervals.

[0027] like Figure 3 and Figure 4 As shown, the cylinder 8 is connected to the top plate 2 via a lifting assembly 9. Specifically, the lifting assembly 9 includes two linear modules 91. Two symmetrically distributed rectangular slots 92 are opened on the outer wall surface of the cylinder 8. The two linear modules 91 are fixed in the two rectangular slots 92 respectively. The slides of the two linear modules 91 are fixed to the inner wall of the circular hole 7. The height of the top plate 2 can be automatically adjusted by means of the linear modules 91, thereby realizing the automatic lifting of the metal workpiece.

[0028] like Figure 4 As shown, the cylinder 8 is mounted on the base 1 via a rotating assembly 10. Specifically, the rotating assembly 10 includes a motor 101. A mounting hole 102 is provided at the center of the top of the base 1. The motor 101 is detachably fixed in the mounting hole 102. A connecting plate 103 is fixedly provided at the top of the output shaft of the motor 101. The connecting plate 103 is fixed to the bottom end of the cylinder 8.

[0029] In practical use, the anode hanger 3 carries the metal workpiece to be processed onto the hook 32. Driven by the top plate 2, the anode hanger 3 sequentially transports the metal workpiece to multiple electrolytic cells 4 and multiple cleaning tanks 5. For example, hydrochloric acid electrolyte is placed in the first electrolytic cell 4 for removing the chromium plating, aminosulfonic acid electrolyte is placed in the next electrolytic cell 4 for removing the nickel plating, and acidic chloride electrolyte is placed in the last electrolytic cell 4 for removing the copper plating. As the anode hanger 3 rotates with the top plate 2, the metal workpiece is sequentially moved into the three electrolytic cells 4 and automatically submerged in the electrolyte under the drive of the linear module 91, thus undergoing electrolytic treatment (e.g., ...). Figure 2 As shown, multiple electrolytes are used to remove the copper-nickel-chromium plating on the surface of the metal workpiece, thereby improving the electrolytic removal effect. The metal workpiece and the anode hanger 3 serve as the anode. Under the action of direct current, an oxidation reaction occurs on the anode, and the metal plating gradually dissolves from the metal workpiece and enters the electrolyte in the form of ions. On the cathode plate 6, some metal ions are reduced and precipitated in powder form, while most of them form metal hydroxide precipitates. This completes the electrolytic removal of the copper-nickel-chromium plating. In addition, the cleaning tank 5 between two adjacent electrolytic tanks 4 allows the metal workpiece to be immersed in the cleaning solution in the cleaning tank 5 after each electrolytic removal operation, avoiding mutual interference between multiple electrolytes and thus improving the electrolytic removal effect.

[0030] It is worth noting that this electrolytic desulfurization equipment operates in a closed environment and is equipped with protective measures to prevent the electrolyte from polluting the environment and endangering the health of workers.

[0031] Refer to the instruction manual appendix Figure 1 Each electrolytic cell 4 and each cleaning tank 5 has a drain valve 11 fixedly inserted through its outer wall. Multiple drain valves 11 are connected to the inside of the electrolytic cell 4 and the cleaning tank 5. The drain valves 11 can conveniently drain the electrolyte in the electrolytic cell 4 and the cleaning liquid in the cleaning tank 5, thereby facilitating the replacement of the electrolyte and cleaning liquid.

[0032] And, as Figure 2 As shown, multiple heat dissipation vents 12 arranged in a ring array are provided on the outer wall surface of the base 1. Each heat dissipation vent 12 is connected to the mounting hole 102. The heat dissipation vents 12 can keep the air flowing inside the mounting hole 102, thereby improving the heat dissipation effect of the motor 101 and preventing the motor 101 from overheating and affecting its normal operation.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for electrolytically removing copper-nickel-chromium plating, comprising a base (1), characterized in that: The base (1) is provided with a top plate (2) above it, and a plurality of anode hangers (3) arranged in a ring array are fixed at the bottom of the top plate (2); The base (1) is fixedly provided with an electrolytic cell (4) and a cleaning cell (5) of the same number as the anode hanger (3). Each electrolytic cell (4) is fixedly provided with two cathode plates (6). A circular hole (7) is opened at the center of the top of the top plate (2). A cylinder (8) passes through the circular hole (7). Multiple electrolytic cells (4) and multiple cleaning cells (5) are distributed around the cylinder (8) at intervals. The cylinder (8) is connected to the top plate (2) through a lifting assembly (9). The cylinder (8) is installed on the base (1) through a rotating assembly (10).

2. The equipment for electrolytically removing copper-nickel-chromium plating according to claim 1, characterized in that: Each anode hanger (3) includes a mounting plate (31), and the bottom of the mounting plate (31) is fixed with a plurality of evenly distributed hooks (32).

3. The equipment for electrolytically removing copper-nickel-chromium plating according to claim 1, characterized in that: The lifting assembly (9) includes two linear modules (91). Two symmetrically distributed rectangular grooves (92) are opened on the outer wall surface of the cylinder (8). The two linear modules (91) are fixed in the two rectangular grooves (92) respectively. The slides of the two linear modules (91) are fixed to the inner wall of the circular hole (7).

4. The equipment for electrolytically removing copper-nickel-chromium plating according to claim 1, characterized in that: The rotating assembly (10) includes a motor (101), and a mounting hole (102) is provided at the center of the top of the base (1). The motor (101) is detachably fixed in the mounting hole (102). A connecting plate (103) is fixed at the top of the output shaft of the motor (101), and the connecting plate (103) is fixed to the bottom of the cylinder (8).

5. The equipment for electrolytically removing copper-nickel-chromium plating according to claim 1, characterized in that: Each electrolytic cell (4) and each cleaning tank (5) has a drain valve (11) fixedly inserted through its outer wall. The multiple drain valves (11) are connected to the interior of the electrolytic cell (4) and the interior of the cleaning tank (5).

6. The equipment for electrolytically removing copper-nickel-chromium plating according to claim 4, characterized in that: The outer wall surface of the base (1) has multiple heat dissipation vents (12) arranged in a ring array, and each heat dissipation vent (12) is connected to the mounting hole (102).