CN220952109U - Composite corrosion-resistant conductive rod for silver electrolysis - Google Patents
Composite corrosion-resistant conductive rod for silver electrolysis Download PDFInfo
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- CN220952109U CN220952109U CN202322968177.8U CN202322968177U CN220952109U CN 220952109 U CN220952109 U CN 220952109U CN 202322968177 U CN202322968177 U CN 202322968177U CN 220952109 U CN220952109 U CN 220952109U
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 63
- 239000004332 silver Substances 0.000 title claims abstract description 63
- 238000005260 corrosion Methods 0.000 title claims abstract description 49
- 230000007797 corrosion Effects 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 25
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 238000007747 plating Methods 0.000 claims abstract description 19
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 8
- 239000003792 electrolyte Substances 0.000 abstract description 7
- 238000009713 electroplating Methods 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001431 copper ion Inorganic materials 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 229910000510 noble metal Inorganic materials 0.000 abstract description 2
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 abstract 2
- 239000010956 nickel silver Substances 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 64
- 238000000034 method Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 2
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 2
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 2
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910001961 silver nitrate Inorganic materials 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000001476 sodium potassium tartrate Substances 0.000 description 2
- 235000011006 sodium potassium tartrate Nutrition 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000012745 toughening agent Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229940026189 antimony potassium tartrate Drugs 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- WBTCZEPSIIFINA-MSFWTACDSA-J dipotassium;antimony(3+);(2r,3r)-2,3-dioxidobutanedioate;trihydrate Chemical compound O.O.O.[K+].[K+].[Sb+3].[Sb+3].[O-]C(=O)[C@H]([O-])[C@@H]([O-])C([O-])=O.[O-]C(=O)[C@H]([O-])[C@@H]([O-])C([O-])=O WBTCZEPSIIFINA-MSFWTACDSA-J 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
The utility model discloses a composite corrosion-resistant conductive rod for silver electrolysis, which belongs to the technical field of silver electrolytic machining devices and is prepared by pretreating a conductive rod substrate, pre-plating a thin nickel layer on the surface of the conductive rod substrate, electroplating a silver layer to form a nickel-silver composite plating conductive rod, leaving the conductive position of the nickel-silver composite plating conductive rod, and coating an anticorrosive coating on the position except the conductive position. The composite corrosion-resistant conductive rod for silver electrolysis prepared by the utility model has excellent conductivity, corrosion resistance and plastic deformation resistance, reduces the cost backlog of noble metal caused by using the silver conductive rod, reduces the exceeding of electrolyte copper ions caused by using the copper alloy conductive rod, and improves the quality of electric silver.
Description
Technical Field
The utility model relates to the technical field of silver electrolytic machining devices, in particular to a composite corrosion-resistant conductive rod for silver electrolysis.
Background
Currently, silver electrorefining is mainly used for preparing high-purity electro-silver powder, and there are many problems in the actual production process of electro-silver powder, for example,
On the one hand, from the viewpoint of the raw material types of the conductive rods, if the anode conductive rod adopts a traditional electrolytic anode conductive rod, like a titanium rod or a copper rod, the conductivity is inferior to that of a pure silver conductive rod; if a copper conducting rod is used, copper in the electrolyte is increased, copper can be precipitated at the upper part of the cathode, and the quality of the electric silver is affected, namely the problems of low current efficiency, high copper in the electric silver powder and the electrolyte and the like always exist;
If a pure silver conductive rod is adopted, the pure silver is soft in texture, easy to deform and high in price compared with a copper rod, so that a large amount of backlog of enterprise cost can be caused;
On the other hand, from the aspect of the electrolytic process, because the electric silver powder needs to be mechanically and manually provided with an irregular scraping plate, the electrolyte is often splashed onto the conductive rod in the operation process, so that the conductive rod is severely corroded.
Therefore, providing a silver electrolysis anode conductive rod with good conductivity, difficult deformation and good corrosion resistance is a problem to be solved by the person skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a conductive rod formed by compounding multiple layers, which has excellent conductive properties, good resistance to plastic deformation and corrosion resistance.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The composite corrosion-resistant conductive rod for silver electrolysis is characterized by comprising a conductive rod matrix, and a nickel pre-plating layer and a conductive silver layer which are sequentially electroplated on the conductive rod matrix;
further comprising an anti-corrosion coating coated on the conductive silver layer;
Wherein the anti-corrosion coating comprises a stripping layer,
The stripping layer is an annular groove.
The beneficial effects that above-mentioned technical scheme reached are: plating a nickel pre-plating layer on the conductive rod substrate can prevent the ion mutual penetration and diffusion of the subsequent conductive silver layer and the substrate, and influence the bonding force and the conductivity of the plating layer, thereby prolonging the service life of the plating layer; then, a conductive silver layer is electroplated on the nickel pre-plating layer, so that the conductivity of the conductive rod is greatly improved, the current efficiency in the silver electrolysis process is also improved, and the air consumption is reduced; the outer anti-corrosion coating not only protects the conductive silver layer from being corroded by electrolyte and shortens the service life, but also greatly reduces the exceeding of impurity components of the electrolyte brought by the conductive rod. Thus, the three layers, electroplated or coated on the conductive rod substrate, interact to collectively improve the conductivity, resistance to plastic deformation, and corrosion resistance of the conductive rod.
Preferably, the width and the number of the stripping layers are matched with the hanging lugs of the anode plate.
Preferably, the longitudinal cross section of the conductive rod base body is round or square.
Preferably, the axial cross section of the conductive rod base body is in an inverted convex shape.
The beneficial effects that above-mentioned technical scheme reached are: cutting two ends of the conductive rod matrix, wherein the axial tangential planes of the two ends of the conductive rod matrix are positioned on the same plane, so that the axial cross section of the conductive rod is in an inverted convex shape. Can make the conducting rod carry on the platform or the support that support the conducting rod steadily, play the effect of buckle fixed conducting rod, prevent the electrolysis in-process landing or roll, influence electrolysis effect.
Further, the longitudinal direction is the diameter or the radial direction of the circular section; the axial direction is the direction of the central axis of rotation of the cylinder.
Preferably, the thickness of the nickel preplating layer is 25-50 mu m;
the thickness of the conductive silver layer is as follows: 100-500 mu m;
the thickness of the anti-corrosion coating is as follows: 500-1000 mu m.
Preferably, the conductive rod substrate is made of stainless steel or copper material.
Preferably, the corrosion protection coating is disposed on the non-conductive region.
Compared with the prior art, the utility model discloses the composite corrosion-resistant conductive rod for silver electrolysis, which has the following beneficial effects:
1. The conductive rod substrate is sequentially electroplated or coated with the nickel preplating layer, the conductive silver layer and the anti-corrosion coating, and the conductive performance, the plastic deformation resistance and the anti-corrosion performance of the conductive rod can be improved by compounding the nickel preplating layer, the conductive silver layer and the anti-corrosion coating.
2. The function of each step layer defined by the utility model is that the nickel preplating layer is used for preventing the mutual penetration and diffusion of matrix ions and the conductive silver layer, and the binding force and the conductivity of the plating layer are affected; the conductive silver layer is used for reducing the electric energy transmission resistance and improving the electrolytic conductivity; the anti-corrosion coating is used for protecting the conductive silver layer and the nickel pre-plating layer from corroding the conductive rod under a production system.
3. The conductive rod designed by the utility model can also reduce the cost backlog of noble metal caused by using the silver conductive rod, reduce the exceeding of copper ions of electrolyte caused by using the copper alloy conductive rod, and improve the quality of electric silver.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic axial cross-section of a conductive rod of example 1.
Fig. 2 is a schematic cross-sectional view taken along line A-A in fig. 1.
In the figure, a 1-conductive rod substrate, a 2-nickel preplating layer, a 3-conductive silver layer, a 4-anticorrosive coating and a 5-annular groove are formed.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model discloses a composite corrosion-resistant conductive rod for silver electrolysis, which comprises a conductive rod matrix made of stainless steel or copper materials, and a nickel pre-plating layer and a conductive silver layer which are electroplated on the conductive rod matrix in sequence; the anti-corrosion coating is coated on the conductive silver layer; the anti-corrosion coating comprises a stripping layer, wherein the stripping layer is an annular groove, the stripping layer is positioned in a conductive area of the conductive silver layer, and the width and the number of the stripping layer are matched with those of the anode plate hangers; the longitudinal cross section of the conductive rod matrix is round or square; the axial cross section of the hollow cylinder is in an inverted convex shape.
Further, the thickness of the nickel preplating layer: 25-50 mu m;
Thickness of conductive silver layer: 100-500 mu m;
Thickness of the anti-corrosion coating: 500-1000 mu m.
In another embodiment, when the cross section of the conductive rod base body is circular, the two ends of the conductive rod base body are cut along the radial direction and the axial direction respectively, and the axial tangential planes of the two ends of the remaining conductive rod base body are ensured to be positioned on the same plane, so that the axial cross section is in an inverted convex shape,
Further, the axial lengths of the two ends of the conductive rod matrix are equal; plays a role in fixing the conductive rod by the buckle, and prevents the electrolytic effect from being influenced by sliding down or rolling in the electrolytic process.
Example 1
The composite corrosion-resistant conductive rod for silver electrolysis is characterized in that a cylindrical copper alloy is selected as a conductive rod base body 1, cutting layers are arranged at two ends of the conductive rod base body 1, the cross section of the conductive body base body in the axial direction is in an inverted convex shape, and the axial lengths of the conductive rod base body cut at two ends are equal, so that the two ends of the finally prepared conductive rod can be stably carried on a platform or a bracket for supporting the conductive rod.
Plating a nickel preplating layer 2 and a conductive silver layer 3 on the conductive rod matrix in sequence;
A stripping layer, namely a conductive area, is arranged on the conductive silver layer 3; the number of the stripping layers is 2, and the width and the interval of each stripping layer are matched with those of the anode plate hanging lugs and are used for hanging the anode plate;
coating an anti-corrosion coating 4 on the non-conductive area of the conductive silver layer;
Wherein,
The thickness of the nickel preplating layer is 50 mu m;
The thickness of the conductive silver layer is 300 mu m;
The thickness of the anticorrosive coating is 500 μm.
The specific conductive rod structure is shown in fig. 1 and 2.
The specific preparation steps of the composite corrosion-resistant conductive rod for silver electrolysis are as follows:
(1) Pretreatment of a conductive rod: firstly, ensuring the peripheral speed of a polishing machine: 30m/s, rotational speed: polishing the copper conductive rod matrix at 2500r/min, removing macroscopic defects such as surface cuts and oxide layers, soaking the pretreated copper conductive rod matrix in alcohol for 3-5 min, and drying with natural cold air to prevent the oxide layers from being formed on the surface layer when meeting water.
(2) Preparation of a bottom plating layer: placing the pretreated conductive rod matrix in the step (1) in nickel sulfate 100g/L, hydrochloric acid: 80g/L, nickel chloride: in 150g/L strong acid preplating solution, controlling the temperature to 40 ℃, electroplating for 1h at the cathode current density of 2A/dm 2, forming a layer of 50 mu m thin nickel on the surface of the conductive rod, cleaning the conductive rod with deionized water, and then controlling the temperature to 80 ℃ and drying in a muffle furnace.
(3) Preparing a conductive silver layer: and (3) placing the conductive rod with the bottom plating layer prepared in the step (2) in silver nitrate: 60g/L, potassium cyanide: 100g/L, sodium potassium tartrate: 50g/L, 5g/L of antimony potassium tartrate and 1g/L of thiourea are electroplated for 3 hours in a nitric acid system electroplating solution with the temperature of 40 ℃ and the cathode current density of 2A/dm 2 to form a conductive silver layer with 300 mu m, and the conductive silver layer is taken out, washed with deionized water and dried.
(4) Preparing an anti-corrosion coating: the composite conductive rod prepared in the step (3) is sent into a muffle furnace to be dried to 150 ℃, a conductive position of the conductive rod is clamped by a special clamp in a sealing way, hot melt adhesive is coated on the surface of the conductive rod uniformly, and when the surface temperature of the conductive rod is reduced to about 60 ℃, polymer modified anticorrosive paint consisting of main materials and auxiliary materials according to a mass ratio of 4:1 is coated on the surface of the conductive rod uniformly, wherein the main materials consist of 65% of epoxy resin, 30% of curing agent and 5% of leveling agent according to weight percentage; the auxiliary materials comprise 15% of pigment, 30% of toughening agent, 52% of silicon dioxide and 3% of foam remover. And naturally standing for 24 hours to form the composite corrosion-resistant conductive rod for silver electrolysis with the thickness of the outer coating of 500 mu m.
Example 2
The composite corrosion-resistant conductive rod for silver electrolysis of this example was made of stainless steel as a base material, and the other structures were the same as those in example 1.
The preparation steps of the composite corrosion-resistant conductive rod for silver electrolysis in the embodiment specifically comprise:
(1) Pretreatment of a conductive rod: firstly, ensuring the peripheral speed of a polishing machine: 30m/s, rotational speed: polishing the stainless steel conductive rod matrix at 2500r/min, removing macroscopic defects such as surface cuts and oxide layers, soaking the pretreated stainless steel conductive rod matrix in alcohol for 3-5 min, and naturally drying with cold air to prevent the oxide layers from being formed on the surface layer when meeting water.
(2) Preparation of a bottom plating layer: placing the pretreated conductive rod matrix in the step (1) in 150g/L nickel sulfate and hydrochloric acid: 80g/L, nickel chloride: in 200g/L strong acid preplating solution, controlling the temperature to 40 ℃ and the cathode current density to 2A/dm 2, electroplating for 1h, forming a layer of 40 mu m thin nickel on the surface of the conductive rod, cleaning the conductive rod with deionized water, and then controlling the temperature to 80 ℃ and drying in a muffle furnace.
(3) Preparing a conductive silver layer: and (3) placing the conductive rod with the bottom plating layer prepared in the step (2) in silver nitrate: 80g/L, potassium cyanide: 150g/L, sodium potassium tartrate: and (3) electroplating for 3 hours at a temperature of 40 ℃ in a nitric acid system electroplating solution of 60g/L, 5g/L and 1g/L of thiourea, wherein the cathode current density is 2A/dm 2, forming a conductive silver layer with 300 mu m, taking out, washing with deionized water and drying.
(4) Preparing an anti-corrosion coating: the composite conductive rod prepared in the step (3) is sent into a muffle furnace to be dried to 150 ℃, a conductive position of the conductive rod is clamped by a special clamp in a sealing way, hot melt adhesive is coated on the surface of the conductive rod uniformly, and when the surface temperature of the conductive rod is reduced to about 60 ℃, polymer modified anticorrosive paint consisting of main materials and auxiliary materials according to a mass ratio of 4:1 is coated on the surface of the conductive rod uniformly, wherein the main materials consist of 65% of epoxy resin, 30% of curing agent and 5% of leveling agent according to weight percentage; the auxiliary materials comprise 15% of pigment, 30% of toughening agent, 52% of silicon dioxide and 3% of foam remover. And naturally standing for 24 hours to form the composite corrosion-resistant conductive rod for silver electrolysis with the thickness of the outer coating of 500 mu m.
Effect verification
1. Conductivity test
The conductive bars prepared by the two examples and the copper alloy conductive bars and the stainless steel conductive bars are adopted independently as comparison, and the resistance performance at two ends of the conductive bars is detected, wherein the detection results are shown in the following table:
| Species of type | Copper alloy conductive rod | Example 1 conductive rod | Stainless steel conductive rod | Example 2 conductive rod |
| Resistor 1 (mΩ) | 188 | 42 | 258 | 62 |
| Resistor 2 (mΩ) | 208 | 54 | 243 | 55 |
| Resistor 3 (mΩ) | 168 | 57 | 233 | 63 |
Conclusion: by performing 3 sets of performance tests on the resistance across the conductive bars, it was found that the multi-level conductive bars defined by the present utility model have excellent conductive properties.
2. Corrosion resistance test
The conductive bars prepared in the two examples and the copper alloy conductive bars and the stainless steel conductive bars which are adopted independently are used as comparison, the prepared conductive bars are soaked in nitric acid for 25 days in sequence, the corrosion thickness is detected, and the detection results are shown in the following table:
Conclusion: as can be seen from the corrosion thickness measurement value of the conductive rod, the conductive rod prepared by the preparation method has excellent corrosion resistance.
3. Resistance to deformation test
The conductive rods prepared by the two examples and the copper alloy conductive rod and the stainless steel conductive rod are adopted independently as comparison, and plastic deformation detection is carried out on the conductive rods under the same conditions by using 150d, 250d and 330d in sequence, wherein the detection results are shown in the following table:
| Species of type | Copper alloy conductive rod | Example 1 conductive rod | Stainless steel conductive rod | Example 2 conductive rod |
| Datum | 0 | 0 | 0 | 0 |
| 150d(μm) | 112 | 82 | 96 | 76 |
| 250d(μm) | 325 | 128 | 251 | 85 |
| 330d(μm) | 654 | 223 | 356 | 165 |
Conclusion: as can be seen from the corrosion thickness measurement value of the conductive rod, the conductive rod prepared by the preparation method has excellent plastic deformation resistance.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The composite corrosion-resistant conductive rod for silver electrolysis is characterized by comprising a conductive rod matrix, and a nickel pre-plating layer and a conductive silver layer which are sequentially electroplated on the conductive rod matrix;
further comprising an anti-corrosion coating coated on the conductive silver layer;
Wherein the anti-corrosion coating comprises a stripping layer,
The stripping layer is an annular groove.
2. The composite corrosion-resistant conductive rod for silver electrolysis according to claim 1, wherein the stripping layer is matched with an anode plate hanging lug.
3. The composite corrosion-resistant conductive rod for silver electrolysis according to claim 1, wherein the longitudinal cross section of the conductive rod base body is round or square.
4. The composite corrosion-resistant conductive rod for silver electrolysis according to claim 1, wherein the axial cross section of the conductive rod base body is in an inverted convex shape.
5. The composite corrosion-resistant conductive rod for silver electrolysis according to any one of claims 1 to 4, wherein the nickel pre-plating layer has a thickness of: 25-50 mu m;
the thickness of the conductive silver layer is as follows: 100-500 mu m;
the thickness of the anti-corrosion coating is as follows: 500-1000 mu m.
6. The composite corrosion-resistant conductive rod for silver electrolysis according to claim 5, wherein the conductive rod substrate is stainless steel or copper material.
7. A composite corrosion resistant conductive rod for silver electrolysis according to claim 5, wherein said corrosion resistant coating is disposed on the non-conductive areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322968177.8U CN220952109U (en) | 2023-11-03 | 2023-11-03 | Composite corrosion-resistant conductive rod for silver electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322968177.8U CN220952109U (en) | 2023-11-03 | 2023-11-03 | Composite corrosion-resistant conductive rod for silver electrolysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220952109U true CN220952109U (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322968177.8U Active CN220952109U (en) | 2023-11-03 | 2023-11-03 | Composite corrosion-resistant conductive rod for silver electrolysis |
Country Status (1)
| Country | Link |
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| CN (1) | CN220952109U (en) |
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- 2023-11-03 CN CN202322968177.8U patent/CN220952109U/en active Active
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