CN110643998B - Film coating method of anode plate for zinc electrodeposition - Google Patents
Film coating method of anode plate for zinc electrodeposition Download PDFInfo
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- CN110643998B CN110643998B CN201911038325.8A CN201911038325A CN110643998B CN 110643998 B CN110643998 B CN 110643998B CN 201911038325 A CN201911038325 A CN 201911038325A CN 110643998 B CN110643998 B CN 110643998B
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- anode plate
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention relates to a film coating method of an anode plate for zinc electrodeposition, which belongs to the technical field of zinc electrodeposition production and comprises the following steps: 1) carrying out acidic oil removal treatment on the anode plate for zinc electrodeposition by using an acidic oil removal agent, and then washing and drying; 2) performing galling treatment on the zinc electrodeposition anode plate after acid oil removal, and then washing and drying; 3) placing the anode plate for zinc electrodeposition obtained in the step 2) in epoxy resin paint, preparing a substrate layer on the surface to be plated, and drying; 4) placing the anode plate for zinc electrodeposition obtained in the step 3) into graphene paint, preparing a graphene layer on the surface to be plated, and drying to finish the plating of the anode plate for zinc electrodeposition. By using the coating technology, the corrosion resistance of the anode plate can be obviously improved, the service life of the anode plate is prolonged, the purity of electrolytic zinc is improved, and the economic benefit of enterprises is increased.
Description
Technical Field
The invention belongs to the technical field of zinc electrodeposition production, and particularly relates to a film plating method of an anode plate for zinc electrodeposition.
Background
With the wide application of galvanized steel, the hot galvanizing technology is rapidly developed. The hot galvanizing has the significance that after the surface of the steel strip is covered by a galvanized layer, the corrosion resistance is greatly improved, materials and resources can be saved, and good economic benefit and environmental benefit are brought into play.
The Pb-Ag-based serial anode widely used in zinc electrodeposition at present has poor film coating effect or is not coated with films in time due to the fact that an anode plate of a new upper tank is poor in film coating effect, a large number of new plates are replaced in a short period, lead content in a system is increased, the purity of electrolyte is influenced, and current efficiency in a zinc electrogalvanizing process is reduced. The electrolytic zinc produced in China has the problems of low purity and the like, and the purification degree of the electrolyte is a key technology of zinc electrolysis for obtaining qualified electrolytic zinc, and is a subject which is researched so far.
Disclosure of Invention
In order to overcome the problems in the background technology, the invention provides a method for plating a zinc electrodeposition anode plate, wherein the zinc electrodeposition anode plate is subjected to oil removal treatment and galling treatment, and then is sequentially subjected to epoxy resin layer and graphene layer plating.
In order to realize the purpose, the invention is realized by the following technical scheme:
the film coating method of the anode plate for zinc electrodeposition comprises the following steps:
1) carrying out acidic oil removal treatment on the anode plate for zinc electrodeposition by using an acidic oil removal agent, and then washing and drying;
2) performing galling treatment on the zinc electrodeposition anode plate after acid oil removal, and then washing and drying;
3) placing the anode plate for zinc electrodeposition obtained in the step 2) in epoxy resin paint, preparing a substrate layer on the surface to be plated, and drying;
4) placing the anode plate for zinc electrodeposition obtained in the step 3) into graphene paint, preparing a graphene layer on the surface to be plated, and drying to finish the plating of the anode plate for zinc electrodeposition.
Further, in the step 1), the acidic degreasing agent is inorganic acid, and the concentration of H ions is 3-4 mol/L; the acid degreasing treatment is carried out at 60-80 ℃ for 2-10 min.
Further, in the step 1), the Pb-Ag-based anode plate for zinc electrodeposition is used for zinc electrodeposition.
Further, in the steps 1) and 2), the temperature is 60-80 ℃ during water washing, and the time is 2-5 min.
Further, in steps 1) to 3), the conditions of the drying treatment are as follows: the temperature is 120 ℃ and 150 ℃, and the time is 3-5 min.
Further, in step 2), the napping treatment means: and (3) roughening by using 400# sandpaper for 3-5 min.
Further, in the step 3), the whole anode plate is immersed in the epoxy resin coating for 3-5min when the substrate layer is prepared.
Further, in the step 4), the whole anode plate is immersed in the graphene coating when the graphene layer is prepared, and the immersion time is 3-5 min.
Further, in the step 4), the drying conditions are as follows: the temperature is 180 ℃ and 200 ℃, and the time is 8-10 min.
The invention has the beneficial effects that:
compared with the traditional zinc electrodeposition anode plate, the anode plate for zinc electrodeposition has the advantages that the corrosion resistance of the anode plate can be obviously improved, the service life of the anode plate is prolonged, the electrode plate metal is prevented from being dissolved back to an electrolysis system, the purity of electrolytic zinc is improved, and the economic benefit of an enterprise is increased by using the coating technology.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below to facilitate understanding of the skilled person.
Example 1
A film coating method of an anode plate for zinc electrodeposition comprises the following steps:
1) carrying out acid oil removal treatment on the zinc electrodeposition anode plate by using an acid oil removal agent (inorganic acid, the concentration of H ions is 3-4 mol/L), wherein the treatment temperature is 60 ℃, and the treatment time is 10 min; washing with water at 60 deg.C for 5 min; after washing, drying the mixture in a drying oven at 120 ℃ for 5 min.
2) And (3) roughening the anode plate for zinc electrodeposition after acid oil removal for 3min by using No. 400 abrasive paper, washing for 5min at 60 ℃, and drying by using a drying oven at 120 ℃ for 5min after washing.
3) And (3) preparing a base layer after the napping treatment is finished, immersing the whole anode plate into the epoxy resin coating for 3min, taking out, and drying for 5min at 120 ℃ by using a drying oven.
4) And preparing a graphene layer after the preparation of the substrate layer is finished, immersing the whole anode plate into the graphene coating for 3min, taking out the whole anode plate, and drying the whole anode plate for 10min at 180 ℃ by using a drying oven to finish the coating of the anode plate for zinc electrodeposition.
Putting the coated anode plate into a production process, namely H2SO4：140g/L、Zn2+: the electrodeposition is carried out under the condition of 40g/L, the electrodeposition result shows that the current efficiency is obviously improved, and the zinc electrolysis average current density is over 500A/m2The surface of the cathode zinc is more compact, impurities such as lead and the like brought into a zinc sheet are reduced, and the purity of the obtained electrodeposited zinc is 99.995% (wt).
Example 2
A film coating method of an anode plate for zinc electrodeposition comprises the following steps:
1) carrying out acid oil removal treatment on the zinc electrodeposition anode plate by using an acid oil removal agent (inorganic acid, the concentration of H ions is 3-4 mol/L), wherein the treatment temperature is 70 ℃, and the treatment time is 6 min; washing with water at 70 deg.C for 5 min; after washing, drying the mixture in a drying oven at 130 ℃ for 5 min.
2) And (3) roughening the anode plate for zinc electrodeposition after acid oil removal for 3min by using No. 400 sand paper, washing for 5min at 70 ℃, and drying by using a drying oven at 130 ℃ for 5min after washing.
3) And (3) preparing a base layer after the napping treatment is finished, immersing the whole anode plate into the epoxy resin coating for 3min, taking out, and drying for 5min at 130 ℃ by using a drying oven.
4) And preparing a graphene layer after the preparation of the substrate layer is finished, immersing the whole anode plate into the graphene coating for 3min, taking out, and drying for 10min at 190 ℃ by using a drying oven to finish the coating of the anode plate for zinc electrodeposition.
Putting the coated anode plate into a production process, namely H2SO4：140g/L、Zn2+: the electrodeposition is carried out under the condition of 40g/L, the electrodeposition result shows that the current efficiency is obviously improved, and the zinc electrolysis average current density is 420A/m2The purity of the obtained electrodeposited zinc is 99.980% (wt), the surface of the cathode zinc is more compact, and the impurity element Pb is prevented from permeating into the cathode zinc.
Example 3
A film coating method of an anode plate for zinc electrodeposition comprises the following steps:
1) carrying out acid oil removal treatment on the zinc electrodeposition anode plate by using an acid oil removal agent (inorganic acid, the concentration of H ions is 3-4 mol/L), wherein the treatment temperature is 80 ℃, and the treatment time is 2 min; washing with water at 80 deg.C for 2 min; and (3) after washing, drying the mixture by using a drying oven at the temperature of 150 ℃ for 3 min.
2) And (3) roughening the anode plate for zinc electrodeposition after acid oil removal for 3min by using No. 400 sand paper, washing for 2min at 80 ℃, and drying by using a drying oven at 150 ℃ for 3min after washing.
3) And (3) preparing a base layer after the napping treatment is finished, immersing the whole anode plate into the epoxy resin coating for 5min, taking out, and drying for 3min at 150 ℃ by using a drying oven.
4) And preparing a graphene layer after the preparation of the substrate layer is finished, immersing the whole anode plate into the graphene coating for 5min, taking out, and drying for 8min at 200 ℃ by using a drying oven to finish the coating of the anode plate for zinc electrodeposition.
Putting the coated anode plate into a production process, namely H2SO4：140g/L、Zn2+: the zinc electrolysis average current density is 420A/m by electrodeposition under the condition of 40g/L2The surface of the cathode zinc is denser, and the purity of the obtained electrodeposited zinc is 99.900% (wt).
In conclusion, the anode plate for zinc electrodeposition treated by the method can obviously improve the corrosion resistance of the anode plate, prolong the service life of the anode plate and improve the purity of electrolytic zinc.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (7)
1. A film coating method of an anode plate for zinc electrodeposition is characterized by comprising the following steps: the method comprises the following steps:
1) the anode plate for zinc electrodeposition is a Pb-Ag-based series anode plate for zinc electrodeposition, and the anode plate for zinc electrodeposition is subjected to acidic oil removal treatment by using an acidic oil removal agent, and then is washed and dried; the acidic degreasing agent is inorganic acid, and the H ion concentration is 3-4 mol/L; during the acid oil removal treatment, the temperature is 60-80 ℃, and the time is 2-10 min;
2) performing galling treatment on the zinc electrodeposition anode plate after acid oil removal, and then washing and drying;
3) placing the anode plate for zinc electrodeposition obtained in the step 2) in epoxy resin paint, preparing a substrate layer on the surface to be plated, and drying;
4) placing the anode plate for zinc electrodeposition obtained in the step 3) into graphene paint, preparing a graphene layer on the surface to be plated, and drying to finish the plating of the anode plate for zinc electrodeposition.
2. The method for plating the anode plate for zinc electrodeposition according to claim 1, wherein: in the steps 1) and 2), the temperature is 60-80 ℃ and the time is 2-5min during water washing.
3. The method for plating the anode plate for zinc electrodeposition according to any one of claims 1 to 2, wherein: in steps 1) to 3), the conditions of the drying treatment: the temperature is 120 ℃ and 150 ℃, and the time is 3-5 min.
4. The method for plating the anode plate for zinc electrodeposition according to any one of claims 1 or 2, wherein: in the step 2), the napping treatment means: and (3) roughening by using 400# sandpaper for 3-5 min.
5. The method for plating the anode plate for zinc electrodeposition according to claim 1, wherein: in the step 3), the whole anode plate is immersed in the epoxy resin coating for 3-5min when the substrate layer is prepared.
6. The method for plating the anode plate for zinc electrodeposition according to claim 1, wherein: in the step 4), the whole anode plate is immersed in the graphene coating when the graphene layer is prepared, and the immersion time is 3-5 min.
7. The method for plating the anode plate for zinc electrodeposition according to claim 1, wherein: in step 4), the conditions of the drying treatment are as follows: the temperature is 180 ℃ and 200 ℃, and the time is 8-10 min.
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| CN201911038325.8A CN110643998B (en) | 2019-10-29 | 2019-10-29 | Film coating method of anode plate for zinc electrodeposition |
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| CN201911038325.8A CN110643998B (en) | 2019-10-29 | 2019-10-29 | Film coating method of anode plate for zinc electrodeposition |
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| CN110643998B true CN110643998B (en) | 2021-11-30 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616721A (en) * | 2003-11-11 | 2005-05-18 | 章浩龙 | Electrolytic electrode and its using method |
| CN2887892Y (en) * | 2006-03-09 | 2007-04-11 | 刘明华 | Anti-corrosion cathode plate and anode plate for electrolysis of zinc by wet method |
| CN102953093A (en) * | 2012-11-06 | 2013-03-06 | 昆明舒扬科技有限公司 | Cathode plate anticorrosive coating for zinc electrowinning and preparation method of cathode plate anticorrosive coating |
| CN205474020U (en) * | 2016-01-18 | 2016-08-17 | 江阴锕电尔电化设备有限公司 | Novel ion membrane electrolytic cell |
| CN205474023U (en) * | 2016-01-18 | 2016-08-17 | 江阴锕电尔电化设备有限公司 | Modified ion membrane electrolytic cell |
| CN205474033U (en) * | 2016-01-18 | 2016-08-17 | 江阴锕电尔电化设备有限公司 | Ionic exchange membrane electrolyser |
| CN106757177A (en) * | 2016-12-12 | 2017-05-31 | 株洲冶炼集团股份有限公司 | A kind of preparation method of the anti-corrosion zinc cathode aluminum plate of band coating |
| CN110257857A (en) * | 2019-07-15 | 2019-09-20 | 惠州市臻鼎环保科技有限公司 | The preparation method and Anodic of Anodic |
-
2019
- 2019-10-29 CN CN201911038325.8A patent/CN110643998B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616721A (en) * | 2003-11-11 | 2005-05-18 | 章浩龙 | Electrolytic electrode and its using method |
| CN2887892Y (en) * | 2006-03-09 | 2007-04-11 | 刘明华 | Anti-corrosion cathode plate and anode plate for electrolysis of zinc by wet method |
| CN102953093A (en) * | 2012-11-06 | 2013-03-06 | 昆明舒扬科技有限公司 | Cathode plate anticorrosive coating for zinc electrowinning and preparation method of cathode plate anticorrosive coating |
| CN205474020U (en) * | 2016-01-18 | 2016-08-17 | 江阴锕电尔电化设备有限公司 | Novel ion membrane electrolytic cell |
| CN205474023U (en) * | 2016-01-18 | 2016-08-17 | 江阴锕电尔电化设备有限公司 | Modified ion membrane electrolytic cell |
| CN205474033U (en) * | 2016-01-18 | 2016-08-17 | 江阴锕电尔电化设备有限公司 | Ionic exchange membrane electrolyser |
| CN106757177A (en) * | 2016-12-12 | 2017-05-31 | 株洲冶炼集团股份有限公司 | A kind of preparation method of the anti-corrosion zinc cathode aluminum plate of band coating |
| CN110257857A (en) * | 2019-07-15 | 2019-09-20 | 惠州市臻鼎环保科技有限公司 | The preparation method and Anodic of Anodic |
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Address after: 650021 No. 86 Yuantong North Road, Kunming City, Yunnan Province Applicant after: Kunming Metallurgical Research Institute Co., Ltd Address before: 650021 No. 86 Yuantong North Road, Kunming City, Yunnan Province Applicant before: KUNMING METALLURGICAL Research Institute |
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