Electroplated platinum-gold anode

Abstract

The utility model discloses a kind of electroplating platinum gold anodes, including conducting plate, electrode plate and platinum net, one end of the electrode plate is detachably connected with the conducting plate, the conducting plate is used to realize the electrification of the electrode plate and the fixation of the electrode plate in electrolytic cell, the platinum net is fixed in one side of the electrode plate, to constitute the electroplating anode of platinum material, the conducting plate adopts red copper material, the electrode plate is set as the copper bar of outer surface is wrapped titanium metal layer, the platinum net is set as the planar panel piece of outer surface is plated with platinum layer;The utility model is by setting the platinum net on the electrode plate to constitute the electroplating anode of platinum material, replace the lead-tin anode used in traditional chrome plating process, avoid the derivative such as lead chromate in chrome plating process to influence electroplating process quality and bath solution life etc.

Description

Technical Field

[0001] This utility model relates to the field of electroplating equipment technology, specifically to an electroplating platinum anode. Background Technology

[0002] Lead-tin anodes are currently one of the most commonly used anode materials in the chromium plating industry, and their main component is a lead-tin alloy containing 6% to 8% tin. Due to their low cost and simple manufacturing process, lead-tin anodes are widely used in chromium plating. Lead-tin anodes are insoluble anodes, primarily functioning as conductors during electroplating. They offer advantages such as low cost, relatively simple manufacturing process, and good corrosion resistance in fluorosilicic acid plating solutions.

[0003] However, in the chromium plating process, a yellow lead dioxide film will form on the surface of the lead-tin anode. Although this film does not affect conductivity, it will generate lead chromate sludge during use, which will pollute the plating solution and needs to be cleaned regularly. If it is not removed and cleaned when plating is stopped, a lead chromate film with poor conductivity will form on the surface, which will lead to an increase in tank voltage and energy consumption. At the same time, the lead chromate sludge generated by the anode is a hazardous waste, and its collection and cleaning will increase the cost of subsequent environmental treatment.

[0004] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Summary of the Invention

[0005] To address the aforementioned technical deficiencies, the present invention provides a platinum-plating anode, comprising a conductive plate, an electrode plate, and a platinum mesh. One end of the electrode plate is detachably connected to the conductive plate. The conductive plate is used to energize the electrode plate and fix it within the electrolytic cell. The platinum mesh is fixed to one side of the electrode plate to form the platinum-plating anode. The conductive plate is made of copper, the electrode plate is a copper strip with a titanium metal layer on its outer surface, and the platinum mesh is a flat plate with a platinum layer plated on its outer surface.

[0006] Preferably, the platinum mesh is provided with mesh holes arranged in a row, the mesh holes being diamond-shaped holes with dimensions of 9mm to 10mm in length and 2mm to 3mm in width.

[0007] Preferably, the mesh inner hole size is set to 9.5mm x 3mm.

[0008] Preferably, the platinum mesh is a titanium mesh with a platinum layer of at least 1.5 micrometers thickness deposited on its outer surface.

[0009] Preferably, the conductive plate includes a hook segment, a connecting segment, and an extension segment. The hook segment is connected by the connecting segment and the extension segment to form a U-shaped hook structure. The hook segment, the connecting segment, and the extension segment are integrally bent from a copper plate. The extension segment is detachably connected to the end of the electrode plate.

[0010] Preferably, the hook section and the extension section are arranged in parallel, and a snap-fit ​​groove is formed between the hook section and the extension section, by setting the edge of the electrolytic cell in the snap-fit ​​groove.

[0011] Preferably, the upper part of the extension section is provided with a positioning hole, the axis of the positioning hole is perpendicular to the extension section, the positioning hole is internally threaded with a positioning bolt, and the positioning hole is provided corresponding to the snap-fit ​​groove.

[0012] Preferably, the lower part of the extension section is provided with a first connecting hole, and the upper part of the electrode plate is provided with a second connecting hole. The first connecting hole and the second connecting hole are provided in a one-to-one correspondence, and the connecting bolt passes through the second connecting hole and is threadedly connected to the first connecting hole.

[0013] Preferably, the overall width of the conductive plate is 80mm, the length of the extension section is 485mm, the length of the hook section is 70mm, the thickness of the copper plate used to make the conductive plate is 10mm, and the width of the snap-fit ​​groove is 35mm.

[0014] Preferably, the copper strip in the electrode plate has a length of 2800mm, a width of 80mm, and a thickness of 10mm; the titanium metal layer has a thickness of 10mm; and the platinum mesh has a length of 2100mm and a width of 120mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses the platinum mesh set on the electrode plate to form the platinum material electroplating anode, replacing the lead-tin anode used in the traditional chromium plating process. This avoids the problems of lead chromate and other derivatives being generated in the chromium plating process, which affect the quality of the electroplating process and the life of the bath, while also avoiding the environmental treatment costs in the later stage. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of the electroplated platinum anode; Figure 2 This is a side view of the structure of the electroplated platinum anode; Figure 3 This is a front view of the structure of the conductive plate; Figure 4 This is a side view of the structure of the conductive plate; Figure 5 This is a structural view of the electrode plate; Figure 6 This is a partial structural view of the platinum mesh.

[0017] The numbers in the image represent: 1-Conductive plate; 2-Electrode plate; 3-Platinum mesh; 4-Positioning bolt; 5-Connecting bolt; 11-Hook section; 12-Connecting section; 13-Extension section; 14-Positioning hole; 15-First connecting hole; 21-Second connecting hole; 31-Mesh inner hole. Detailed Implementation

[0018] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings. Example 1

[0019] like Figure 1 and Figure 2 As shown, Figure 1 This is a front view of the structure of the electroplated platinum anode; Figure 2 This is a side view of the structure of the electroplated platinum anode.

[0020] The platinum-plating anode of this invention includes a conductive plate 1, an electrode plate 2, and a platinum mesh 3. One end of the electrode plate 2 is detachably connected to the conductive plate 1. The conductive plate 1 is used to energize the electrode plate 2 and fix the electrode plate 2 in the electrolytic cell. The platinum mesh 3 is fixed to one side of the electrode plate 2 to form a platinum-plating anode. The conductive plate 1 is made of copper. The electrode plate 2 is a copper strip with a titanium metal layer on its outer surface. The platinum mesh 3 is a flat plate with a platinum layer plated on its outer surface.

[0021] The electrode plate 2 uses a titanium-clad copper method, which solves the problem of insufficient conductivity of pure titanium and overcomes the problem of copper's poor acid and corrosion resistance.

[0022] The platinum mesh 3 can be made of pure platinum; preferably, the platinum mesh 3 is set as a titanium mesh, with a platinum layer of at least 1.5 micrometers thickness plated on the outer surface, which solves the problem of high cost of pure platinum, while also realizing the electrode function of the pure platinum mesh 3.

[0023] like Figure 6 As shown, Figure 6 This is a partial structural view of the platinum mesh 3. The platinum mesh 3 has arranged internal holes 31, which are diamond-shaped holes with dimensions of length a being 9mm–10mm and width b being 2mm–3mm. Preferably, the internal hole size 31 is 9.5mm x 3mm. In actual production, the commercially available size is mostly 10mm x 2mm, and the platinum mesh 3 can be welded together using a splicing method.

[0024] Using the platinum mesh 3 with the inner holes 31 as the platinum electrode can increase the surface area of ​​the electroplating reaction contact. The large surface area allows for a larger current to pass through, resulting in faster electroplating speed. At the same time, the mesh structure of the platinum mesh 3 can make the current distribution more uniform during electroplating, reducing the generation of bubbles and the resulting plating solution agitation caused by the rising of bubbles, thus reducing the impact of plating solution agitation on the electroplating process. In addition, the inner holes 31 allow the generated bubbles to escape more easily from the back of the platinum mesh 3, preventing the formation of a bubble insulating layer on the reaction surface located on the front of the platinum mesh 3, and ensuring uniform electroplating.

[0025] The platinum mesh 3 is fixed to one side of the electrode plate 2 by spot welding. The side of the platinum mesh 3 away from the electrode plate 2 is the reaction surface. When the platinum layer on the reaction surface is worn, the platinum mesh 3 can be disassembled to switch between the front and back sides, which greatly improves the service life of the platinum mesh 3 and reduces the cost of using the electroplated platinum anode.

[0026] This invention replaces the lead-tin anode used in traditional chromium plating processes by setting the platinum mesh 3 on the electrode plate 2 to form the platinum material electroplating anode. This avoids problems such as the generation of derivatives such as lead chromate in the chromium plating process, which affect the quality of the electroplating process and the life of the plating bath. At the same time, it avoids the environmental treatment costs in the later stage. Example 2

[0027] like Figure 3 , Figure 4 and Figure 5 As shown, Figure 3 This is a front view of the structure of the conductive plate; Figure 4 This is a side view of the structure of the conductive plate; Figure 5 This is a structural view of the electrode plate.

[0028] The conductive plate 1 includes a hook section 11, a connecting section 12, and an extension section 13. The hook section 11 is connected through the connecting section 12 and the extension section 13 to form a U-shaped hook structure. The hook section 11, the connecting section 12, and the extension section 13 are integrally bent from a copper plate. The extension section 13 is detachably connected to the end of the electrode plate 2.

[0029] Specifically, the hook section 11 and the extension section 13 are arranged in parallel, and a snap-fit ​​groove is formed between the hook section 11 and the extension section 13. By setting the edge of the electrolytic cell in the snap-fit ​​groove, the position of the conductive plate 1 and the electrolytic cell is fixed.

[0030] The upper part of the extension section 13 is provided with a positioning hole 14. The axis of the positioning hole 14 is perpendicular to the extension section 13. A positioning bolt 4 is internally threaded into the positioning hole 14. The positioning hole 14 is provided corresponding to the snap-fit ​​groove. After the edge of the electrolytic cell is placed in the snap-fit ​​groove, the positioning bolt 4 is turned so that the end of the positioning bolt 4 contacts and abuts against the edge of the electrolytic cell, thereby fixing the edge of the electrolytic cell in the snap-fit ​​groove.

[0031] Preferably, the lower part of the extension section 13 is provided with a first connecting hole 15, and the upper end of the electrode plate 2 is provided with a second connecting hole 21. The first connecting hole 15 and the second connecting hole 21 are provided in a one-to-one correspondence. The connecting bolt 5 passes through the second connecting hole 21 and is threadedly connected to the first connecting hole 15, thereby realizing a detachable connection between the conductive plate 1 and the electrode plate 2, ensuring that the conductive plate 1 and the electrode plate 2 are in contact, and realizing the conduction of electricity from the conductive plate 1 to the electrode plate 2. Example 3

[0032] In this specific embodiment, the overall width of the conductive plate 1 is 80mm, the length of the extension section 13 is 485mm, the length of the hook section 11 is 70mm, the thickness of the copper plate used to make the conductive plate 1 is 10mm, and the width of the snap-fit ​​groove is 35mm.

[0033] The copper strip in the electrode plate 2 is 2800mm long, 80mm wide, and 10mm thick. The titanium metal layer is 10mm thick and is firmly wrapped around the copper strip through a compression process.

[0034] The platinum mesh 3 is 2100mm long and 120mm wide. The platinum mesh 3 can be formed by splicing two 1050mm*120mm mesh plates. The thickness of the platinum layer on one side is not less than 1.5 micrometers through electroplating.

[0035] A first connecting hole 15 with a diameter of 13mm is provided at 25mm and 50mm from the lower end of the extension section 13, and a second connecting hole 21 with a diameter of 13mm is provided at 25mm and 50mm from the top end of the electrode plate 2, respectively. Then, the connecting bolts 5 with a diameter of 13mm and a length of 50mm are used to lock the connection. Then, two 1050mm*120mm platinum mesh plates 3 are welded onto the electrode plate 2. During welding, the platinum mesh plates 3 are first laid flat, and the titanium mesh wires on the two platinum mesh plates 3 are aligned and spot welded.

[0036] Each of the aforementioned platinum anodes can carry a current of approximately 800A, which meets the requirements of the chromium plating process.

[0037] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A platinum-plated anode, characterized in that, The device includes a conductive plate, an electrode plate, and a platinum mesh. One end of the electrode plate is detachably connected to the conductive plate. The conductive plate is used to energize the electrode plate and fix it in the electrolytic cell. The platinum mesh is fixed to one side of the electrode plate to form the platinum plating anode. The conductive plate is made of copper. The electrode plate is a copper strip with a titanium metal layer on its outer surface. The platinum mesh is a flat plate with a platinum layer on its outer surface.

2. The platinum-plated anode as described in claim 1, characterized in that, The platinum mesh is provided with internal holes arranged in a grid pattern. The internal holes are diamond-shaped and have a length of 9mm to 10mm and a width of 2mm to 3mm.

3. The platinum-plated anode as described in claim 2, characterized in that, The mesh size is set to 9.5mm x 3mm.

4. The platinum-plated anode as described in claim 2, characterized in that, The platinum mesh is made of titanium and has a platinum layer with a thickness of at least 1.5 micrometers on its outer surface.

5. The platinum-plated anode as described in claim 4, characterized in that, The conductive plate includes a hook section, a connecting section, and an extension section. The hook section is connected by the connecting section and the extension section to form a U-shaped hook structure. The hook section, the connecting section, and the extension section are integrally bent from a copper plate. The extension section is detachably connected to the end of the electrode plate.

6. The platinum-plated anode as described in claim 5, characterized in that, The hook section and the extension section are arranged in parallel, and a snap-fit ​​groove is formed between the hook section and the extension section, by setting the edge of the electrolytic cell in the snap-fit ​​groove.

7. The platinum-plated anode as described in claim 6, characterized in that, The upper part of the extension section is provided with a positioning hole, the axis of the positioning hole is perpendicular to the extension section, the positioning hole is internally threaded with a positioning bolt, and the positioning hole is provided corresponding to the snap-fit ​​groove.

8. The platinum-plated anode as described in claim 7, characterized in that, The lower part of the extension section is provided with a first connecting hole, and the upper part of the electrode plate is provided with a second connecting hole. The first connecting hole and the second connecting hole are provided in a one-to-one correspondence. The connecting bolt passes through the second connecting hole and is threadedly connected to the first connecting hole.

9. The platinum-plated anode as described in claim 8, characterized in that, The conductive plate has an overall width of 80mm, the extension section has a length of 485mm, the hook section has a length of 70mm, the copper plate used to make the conductive plate has a thickness of 10mm, and the slot width of the snap-fit ​​groove is 35mm.

10. The platinum-plated anode as described in claim 9, characterized in that, The copper strip in the electrode plate is 2800mm long, 80mm wide, and 10mm thick; the titanium metal layer is 10mm thick; and the platinum mesh is 2100mm long and 120mm wide.

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