CN112064037A - Preparation method of corrosion-resistant magnesium alloy sacrificial anode - Google Patents
Preparation method of corrosion-resistant magnesium alloy sacrificial anode Download PDFInfo
- Publication number
- CN112064037A CN112064037A CN202011091852.8A CN202011091852A CN112064037A CN 112064037 A CN112064037 A CN 112064037A CN 202011091852 A CN202011091852 A CN 202011091852A CN 112064037 A CN112064037 A CN 112064037A
- Authority
- CN
- China
- Prior art keywords
- corrosion
- magnesium alloy
- resistant
- treatment
- sacrificial anode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/12—Electrodes characterised by the material
- C23F13/14—Material for sacrificial anodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
- C25D9/06—Electrolytic coating other than with metals with inorganic materials by anodic processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses a preparation method of a corrosion-resistant magnesium alloy sacrificial anode, which is characterized by comprising the following steps of: the preparation method comprises the following steps: firstly, performing corrosion resistance treatment on a magnesium alloy sacrificial anode material to form a corrosion-resistant layer on the surface; conducting post-treatment on the surface of the corrosion-resistant layer to finally form the corrosion-resistant conductive magnesium alloy sacrificial anode material; the technical problems that the magnesium alloy anode material in the prior art is too high in self-corrosion rate, so that the service cycle cannot be met normally, a large amount of magnesium alloy is consumed in a self-corrosion mode during protection, and the like are solved.
Description
Technical Field
The invention belongs to electrochemical corrosion and protection technology, and particularly relates to a preparation method of a corrosion-resistant magnesium alloy sacrificial anode.
Background
The sacrificial anode method is a cathode protection technology and is commonly used in the field of anticorrosion treatment of transformer substation grounding grids. The method electrically connects the sacrificial anode with lower electrode potential with the protected body (grounding net) with higher electrode potential, and plays a role in inhibiting the corrosion of the protected body by consuming anode materials and continuously providing electrons like the protected body; the anode material commonly used in the sacrificial anode is a zinc anode, an aluminum anode or a magnesium alloy anode, the magnesium alloy sacrificial anode material is less applied, however, the electron supply capacity of the magnesium alloy anode material with the same volume ratio is larger than that of the zinc anode and the aluminum anode, but the service cycle cannot be met usually because the self-corrosion rate of the magnesium alloy anode material is too high, and a large amount of magnesium alloy is consumed in a self-corrosion mode while the magnesium alloy anode material is protected.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the preparation method of the corrosion-resistant magnesium alloy sacrificial anode is provided to solve the problems that most electrons in the magnesium alloy anode material in the prior art are wasted due to the self-corrosion of the material, and only a small part of electrons are provided for a protected body, so that the magnesium alloy cannot meet the service cycle, the resource is wasted and the like.
The technical scheme of the invention is as follows:
a preparation method of a corrosion-resistant magnesium alloy sacrificial anode comprises the following steps: firstly, performing corrosion resistance treatment on a magnesium alloy sacrificial anode material to form a corrosion-resistant layer on the surface; and conducting post-treatment on the surface of the corrosion-resistant layer to finally form the corrosion-resistant conductive magnesium alloy sacrificial anode material.
The magnesium alloy sacrificial anode material is AZ31 or AZ91 magnesium alloy sacrificial anode material.
The corrosion resistant treatment adopts corrosion resistant treatment liquid, and the corrosion resistant treatment liquid comprises the following components: 10-20 g/L trisodium phosphate, 5-10g/L sodium tungstate, 2-5 g/L copper sulfate, 6-12 g/L sodium ethylene diamine tetracetate, 2-5 g/L copper acetate, 10-20 g/L silicon carbide, 2-4 g/L sodium hydroxide and 5-10g/L sodium fluoride.
The conductive post-treatment adopts post-treatment liquid, and the components of the post-treatment liquid are as follows: 2-5 g/L copper sulfate, 2-5 g/L copper acetate, 6-12 g/L sodium ethylene diamine tetracetate, 10-15g/L graphite powder and 2-4 g/L sodium hydroxide.
The method for the corrosion-resistant treatment comprises the following steps: feeding the corrosion-resistant treatment solution into a treatment tank, setting the temperature at 30 +/-5 ℃, and stirring at the speed of 400 r/min; the magnesium alloy sacrificial anode material is connected with the anode of a direct current pulse power supply, the stainless steel plate is connected with the cathode of the direct current pulse power supply, and the stainless steel plate is placed in the corrosion-resistant treatment solution at the same time, and the power supply is stopped after the treatment time is 10-18 min.
The power supply parameter of the DC pulse power supply during the corrosion resistance treatment is set to 3.5A/cm2Frequency 300 Hz and duty cycle 20%.
The conductive post-treatment method comprises the following steps: the magnesium alloy sacrificial anode material is used as a cathode to be connected with a cathode of a direct current pulse power supply, the stainless steel plate is used as an anode to be connected with an anode of the direct current pulse power supply, the stainless steel plate is placed in post-treatment liquid at the same time, and the power supply is cut off after the treatment time is 15-25 min.
The power supply parameter of the DC pulse power supply is set to be 4A/cm current during post-treatment2Frequency 300 Hz and duty cycle 40%.
The invention has the beneficial effects that:
firstly, performing corrosion resistance treatment on a magnesium alloy sacrificial anode material to form a corrosion-resistant layer on the surface; conducting post-treatment on the surface of the corrosion-resistant layer to finally form a corrosion-resistant conductive magnesium alloy sacrificial anode material; the defect of high self-corrosion rate of the magnesium alloy sacrificial anode at present is overcome, the self-corrosion rate of the magnesium alloy sacrificial anode material is greatly reduced, the corrosion resistance is improved, and the conductivity of the magnesium alloy sacrificial anode is ensured, so that the design service cycle of the sacrificial anode material is met; the technical problems that the magnesium alloy anode material in the prior art is too high in self-corrosion rate, so that the service cycle cannot be met normally, a large amount of magnesium alloy is consumed in a self-corrosion mode during protection, and the like are solved.
Detailed Description
A preparation method of a corrosion-resistant magnesium alloy sacrificial anode comprises the following steps: firstly, performing corrosion resistance treatment on a magnesium alloy sacrificial anode material to form a corrosion-resistant layer on the surface; and conducting post-treatment on the surface of the corrosion-resistant layer to finally form the corrosion-resistant conductive magnesium alloy sacrificial anode material.
The magnesium alloy sacrificial anode material is AZ31 or AZ series magnesium alloy sacrificial anode materials such as AZ 91.
The corrosion-resistant treatment adopts corrosion-resistant treatment liquid, and the corrosion-resistant treatment liquid comprises the following components in percentage by liter: 10-20 g/L trisodium phosphate, 5-10g/L sodium tungstate, 2-5 g/L copper sulfate, 6-12 g/L sodium ethylene diamine tetracetate, 2-5 g/L copper acetate, 10-20 g/L silicon carbide, 2-4 g/L sodium hydroxide and 5-10g/L sodium fluoride; the balance of deionized water.
As a sacrificial anode material, the formula of the treatment solution is different from the prior art in that a protective layer of copper oxide is provided above the magnesium alloy, and the protective layer is beneficial to the implementation of the next conductive post-treatment; if the conductive post-treatment layer is replaced by the conductive post-treatment layer prepared by the formula in the prior art, the post-treatment layer cannot have good bonding force with the corrosion-resistant layer.
The conductive post-treatment adopts post-treatment liquid, and the components of the post-treatment liquid are as follows: 2-5 g/L copper sulfate, 2-5 g/L copper acetate, 6-12 g/L sodium ethylene diamine tetracetate, 10-15g/L graphite powder and 2-4 g/L sodium hydroxide. The balance of deionized water.
The post-treatment fluid formula aims to: the conductive post-treatment liquid can be used for adhering a layer of copper and a small amount of carbon on the surface of the material, so that the conductive post-treatment liquid is conductive.
The method for the corrosion-resistant treatment comprises the following steps: feeding the corrosion-resistant treatment solution into a treatment tank, setting the temperature at 30 +/-5 ℃, and stirring at the speed of 400 r/min; the purpose of stirring is to reduce the temperature of the solution during the corrosion-resistant treatment. The magnesium alloy sacrificial anode material is connected with the anode of a direct current pulse power supply, the stainless steel plate is connected with the cathode of the direct current pulse power supply, and the stainless steel plate is placed in the corrosion-resistant treatment solution, and the power supply is stopped after the treatment time is 10-18 min, so that the corrosion-resistant layer is prevented from being too thin or uneven.
The power supply parameter of the DC pulse power supply during the corrosion resistance treatment is set to 3.5A/cm2Frequency 300 Hz and duty cycle 20%. The parameter is set to make the appearance of the corrosion-resistant coating uniform in the corrosion-resistant treatment.
The conductive post-treatment method comprises the following steps: the magnesium alloy sacrificial anode material is used as a cathode to be connected with a cathode of a direct current pulse power supply, the stainless steel plate is used as an anode to be connected with an anode of the direct current pulse power supply, the stainless steel plate is placed in post-treatment liquid at the same time, and the power supply is cut off after the treatment time is 15-25 min. The time should not be too long or too short, which would result in the conductive layer being substantially intact, and long time which would result in damage to the corrosion resistant coating.
The power supply parameter of the DC pulse power supply is set to be 4A/cm current during post-treatment2Frequency 300 Hz, duty ratio 40%; the optimized parameters are set, so that the corrosion-resistant coating is uniform in appearance and cannot be damaged.
Claims (8)
1. A preparation method of a corrosion-resistant magnesium alloy sacrificial anode is characterized by comprising the following steps: the preparation method comprises the following steps: firstly, performing corrosion resistance treatment on a magnesium alloy sacrificial anode material to form a corrosion-resistant layer on the surface; and conducting post-treatment on the surface of the corrosion-resistant layer to finally form the corrosion-resistant conductive magnesium alloy sacrificial anode material.
2. The method for preparing the corrosion-resistant magnesium alloy sacrificial anode according to claim 1, wherein the method comprises the following steps: the magnesium alloy sacrificial anode material is AZ31 or AZ91 magnesium alloy sacrificial anode material.
3. The method for preparing the corrosion-resistant magnesium alloy sacrificial anode according to claim 1, wherein the method comprises the following steps: the corrosion resistant treatment adopts corrosion resistant treatment liquid, and the corrosion resistant treatment liquid comprises the following components: 10-20 g/L trisodium phosphate, 5-10g/L sodium tungstate, 2-5 g/L copper sulfate, 6-12 g/L sodium ethylene diamine tetracetate, 2-5 g/L copper acetate, 10-20 g/L silicon carbide, 2-4 g/L sodium hydroxide and 5-10g/L sodium fluoride.
4. The method for preparing the corrosion-resistant magnesium alloy sacrificial anode according to claim 1, wherein the method comprises the following steps: the conductive post-treatment adopts post-treatment liquid, and the components of the post-treatment liquid are as follows: 2-5 g/L copper sulfate, 2-5 g/L copper acetate, 6-12 g/L sodium ethylene diamine tetracetate, 10-15g/L graphite powder and 2-4 g/L sodium hydroxide.
5. The method for preparing the corrosion-resistant magnesium alloy sacrificial anode according to claim 1, wherein the method comprises the following steps: the method for the corrosion-resistant treatment comprises the following steps: feeding the corrosion-resistant treatment solution into a treatment tank, setting the temperature at 30 +/-5 ℃, and stirring at the speed of 400 r/min; the magnesium alloy sacrificial anode material is connected with the anode of a direct current pulse power supply, the stainless steel plate is connected with the cathode of the direct current pulse power supply, and the stainless steel plate is placed in the corrosion-resistant treatment solution at the same time, and the power supply is stopped after the treatment time is 10-18 min.
6. The method for preparing the corrosion-resistant magnesium alloy sacrificial anode according to claim 5, wherein the method comprises the following steps: the power supply parameter of the DC pulse power supply during the corrosion resistance treatment is set to 3.5A/cm2Frequency 300 Hz and duty cycle 20%.
7. The method for preparing the corrosion-resistant magnesium alloy sacrificial anode according to claim 1, wherein the method comprises the following steps: the conductive post-treatment method comprises the following steps: the magnesium alloy sacrificial anode material is used as a cathode to be connected with a cathode of a direct current pulse power supply, the stainless steel plate is used as an anode to be connected with an anode of the direct current pulse power supply, the stainless steel plate is placed in post-treatment liquid at the same time, and the power supply is cut off after the treatment time is 15-25 min.
8. The method for preparing the corrosion-resistant magnesium alloy sacrificial anode according to claim 7, wherein the method comprises the following steps: the power supply parameter of the DC pulse power supply is set to be 4A/cm current during post-treatment2Frequency 300 Hz and duty cycle 40%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011091852.8A CN112064037A (en) | 2020-10-13 | 2020-10-13 | Preparation method of corrosion-resistant magnesium alloy sacrificial anode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011091852.8A CN112064037A (en) | 2020-10-13 | 2020-10-13 | Preparation method of corrosion-resistant magnesium alloy sacrificial anode |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112064037A true CN112064037A (en) | 2020-12-11 |
Family
ID=73655261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011091852.8A Pending CN112064037A (en) | 2020-10-13 | 2020-10-13 | Preparation method of corrosion-resistant magnesium alloy sacrificial anode |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112064037A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114934275A (en) * | 2022-06-13 | 2022-08-23 | 贵州电网有限责任公司 | Preparation method of magnesium alloy sacrificial anode material with high current efficiency and low corrosion rate |
Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6193876A (en) * | 1984-10-16 | 1986-05-12 | Nippon Telegr & Teleph Corp <Ntt> | Surface treatment of magnesium and magnesium alloy |
US5622608A (en) * | 1994-05-05 | 1997-04-22 | Research Foundation Of State University Of New York | Process of making oxidation resistant high conductivity copper layers |
CN101003897A (en) * | 2006-01-20 | 2007-07-25 | 佛山市顺德区汉达精密电子科技有限公司 | Method for processing chemical plating Ni-Gu-P alloy on surface of magnesium alloy |
CN101092694A (en) * | 2007-08-15 | 2007-12-26 | 李克清 | Method for processing surface of magnesium alloy |
CN101161866A (en) * | 2007-11-23 | 2008-04-16 | 华南理工大学 | Magnesium and method for preparing magnesium alloy surface coating |
CN101298200A (en) * | 2007-04-30 | 2008-11-05 | 比亚迪股份有限公司 | Magnesium alloy composite material and preparation thereof |
CN101435081A (en) * | 2008-11-28 | 2009-05-20 | 北京航空航天大学 | No-voltage chemical membrane preparing and low voltage electrochemical membrane preparing combined process for magnesium alloy surface |
CN101476146A (en) * | 2008-12-29 | 2009-07-08 | 中国科学院长春应用化学研究所 | Method for preparing black ceramic membrane by magnesium alloy differential arc oxidation |
CN101660183A (en) * | 2008-08-27 | 2010-03-03 | 比亚迪股份有限公司 | Magnesium alloy plating method |
CN101768745A (en) * | 2010-03-05 | 2010-07-07 | 陕西电力科学研究院 | Magnesium sacrificial anode with high current efficiency and preparation method thereof |
CN102021631A (en) * | 2010-11-04 | 2011-04-20 | 杭州意来客电器设备有限公司 | Treatment method of black hard microarc oxidation ceramic membrane on surface of magnesium alloy |
CN102677127A (en) * | 2012-06-11 | 2012-09-19 | 西北有色金属研究院 | Magnesium alloy microarc oxidation-electrophoresis composite coating and preparation method thereof |
CN102943298A (en) * | 2012-10-11 | 2013-02-27 | 创金美科技(深圳)有限公司 | Magnesium alloy composite surface treatment method and magnesium alloy watch case |
CN103233227A (en) * | 2013-05-16 | 2013-08-07 | 桂林电子科技大学 | Preparation method of composite ceramic layer with conductive property |
CN105220134A (en) * | 2015-10-29 | 2016-01-06 | 无锡桥阳机械制造有限公司 | A kind of Mg alloy surface hardening technique |
CN105386045A (en) * | 2015-11-30 | 2016-03-09 | 贵州航天风华精密设备有限公司 | Magnesium alloy surface treatment method |
CN105543920A (en) * | 2015-12-10 | 2016-05-04 | 嘉瑞科技(惠州)有限公司 | Treatment method for preparing electric conducting coating layer on surface of magnesium alloy micro-arc oxidation layer |
CN105803457A (en) * | 2014-12-30 | 2016-07-27 | 宁波瑞隆表面技术有限公司 | Preparation method of magnesium alloy surface micro-arc oxidation and chemical copper plating composite coating |
CN106521602A (en) * | 2016-10-25 | 2017-03-22 | 中国兵器科学研究院宁波分院 | Preparing method of magnesium alloy surface composite ceramic film layer |
CN106884195A (en) * | 2017-02-20 | 2017-06-23 | 山东省科学院新材料研究所 | A kind of plated film magnesium and its alloy and preparation method thereof |
CN107955961A (en) * | 2017-12-05 | 2018-04-24 | 西安文理学院 | A kind of preparation method of Mg alloy surface conduction corrosion-inhibiting coating |
CN109423639A (en) * | 2017-08-28 | 2019-03-05 | 中国科学院金属研究所 | Magnesium alloy is anti-corrosion-conductive integrated conversion film film forming solution and film layer preparation method |
CN110714219A (en) * | 2019-11-04 | 2020-01-21 | 吉林大学 | Method for electroplating nickel on magnesium alloy micro-arc oxidation surface |
WO2020023022A1 (en) * | 2018-07-24 | 2020-01-30 | Hewlett-Packard Development Company, L.P. | Device housing with metallic luster |
CN110846662A (en) * | 2019-11-12 | 2020-02-28 | 四川轻化工大学 | Copper/graphene-plated magnesium alloy composite material and preparation method thereof |
-
2020
- 2020-10-13 CN CN202011091852.8A patent/CN112064037A/en active Pending
Patent Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6193876A (en) * | 1984-10-16 | 1986-05-12 | Nippon Telegr & Teleph Corp <Ntt> | Surface treatment of magnesium and magnesium alloy |
US5622608A (en) * | 1994-05-05 | 1997-04-22 | Research Foundation Of State University Of New York | Process of making oxidation resistant high conductivity copper layers |
CN101003897A (en) * | 2006-01-20 | 2007-07-25 | 佛山市顺德区汉达精密电子科技有限公司 | Method for processing chemical plating Ni-Gu-P alloy on surface of magnesium alloy |
CN101298200A (en) * | 2007-04-30 | 2008-11-05 | 比亚迪股份有限公司 | Magnesium alloy composite material and preparation thereof |
CN101092694A (en) * | 2007-08-15 | 2007-12-26 | 李克清 | Method for processing surface of magnesium alloy |
CN101161866A (en) * | 2007-11-23 | 2008-04-16 | 华南理工大学 | Magnesium and method for preparing magnesium alloy surface coating |
CN101660183A (en) * | 2008-08-27 | 2010-03-03 | 比亚迪股份有限公司 | Magnesium alloy plating method |
CN101435081A (en) * | 2008-11-28 | 2009-05-20 | 北京航空航天大学 | No-voltage chemical membrane preparing and low voltage electrochemical membrane preparing combined process for magnesium alloy surface |
CN101476146A (en) * | 2008-12-29 | 2009-07-08 | 中国科学院长春应用化学研究所 | Method for preparing black ceramic membrane by magnesium alloy differential arc oxidation |
CN101768745A (en) * | 2010-03-05 | 2010-07-07 | 陕西电力科学研究院 | Magnesium sacrificial anode with high current efficiency and preparation method thereof |
CN102021631A (en) * | 2010-11-04 | 2011-04-20 | 杭州意来客电器设备有限公司 | Treatment method of black hard microarc oxidation ceramic membrane on surface of magnesium alloy |
CN102677127A (en) * | 2012-06-11 | 2012-09-19 | 西北有色金属研究院 | Magnesium alloy microarc oxidation-electrophoresis composite coating and preparation method thereof |
CN102943298A (en) * | 2012-10-11 | 2013-02-27 | 创金美科技(深圳)有限公司 | Magnesium alloy composite surface treatment method and magnesium alloy watch case |
CN103233227A (en) * | 2013-05-16 | 2013-08-07 | 桂林电子科技大学 | Preparation method of composite ceramic layer with conductive property |
CN105803457A (en) * | 2014-12-30 | 2016-07-27 | 宁波瑞隆表面技术有限公司 | Preparation method of magnesium alloy surface micro-arc oxidation and chemical copper plating composite coating |
CN105220134A (en) * | 2015-10-29 | 2016-01-06 | 无锡桥阳机械制造有限公司 | A kind of Mg alloy surface hardening technique |
CN105386045A (en) * | 2015-11-30 | 2016-03-09 | 贵州航天风华精密设备有限公司 | Magnesium alloy surface treatment method |
CN105543920A (en) * | 2015-12-10 | 2016-05-04 | 嘉瑞科技(惠州)有限公司 | Treatment method for preparing electric conducting coating layer on surface of magnesium alloy micro-arc oxidation layer |
CN106521602A (en) * | 2016-10-25 | 2017-03-22 | 中国兵器科学研究院宁波分院 | Preparing method of magnesium alloy surface composite ceramic film layer |
CN106884195A (en) * | 2017-02-20 | 2017-06-23 | 山东省科学院新材料研究所 | A kind of plated film magnesium and its alloy and preparation method thereof |
CN109423639A (en) * | 2017-08-28 | 2019-03-05 | 中国科学院金属研究所 | Magnesium alloy is anti-corrosion-conductive integrated conversion film film forming solution and film layer preparation method |
CN107955961A (en) * | 2017-12-05 | 2018-04-24 | 西安文理学院 | A kind of preparation method of Mg alloy surface conduction corrosion-inhibiting coating |
WO2020023022A1 (en) * | 2018-07-24 | 2020-01-30 | Hewlett-Packard Development Company, L.P. | Device housing with metallic luster |
CN110714219A (en) * | 2019-11-04 | 2020-01-21 | 吉林大学 | Method for electroplating nickel on magnesium alloy micro-arc oxidation surface |
CN110846662A (en) * | 2019-11-12 | 2020-02-28 | 四川轻化工大学 | Copper/graphene-plated magnesium alloy composite material and preparation method thereof |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114934275A (en) * | 2022-06-13 | 2022-08-23 | 贵州电网有限责任公司 | Preparation method of magnesium alloy sacrificial anode material with high current efficiency and low corrosion rate |
CN114934275B (en) * | 2022-06-13 | 2024-02-23 | 贵州电网有限责任公司 | Preparation method of magnesium alloy sacrificial anode material with high current efficiency and low corrosion rate |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Tuaweri et al. | A study of process parameters for zinc electrodeposition from a sulphate bath | |
CN105671557B (en) | A kind of magnesium alloy sacrificial anode material containing Bi | |
CN109930147B (en) | Lead bipolar plate and preparation method thereof | |
CN102877114A (en) | Stripping agent for stainless steel electroplating rack | |
CN112064037A (en) | Preparation method of corrosion-resistant magnesium alloy sacrificial anode | |
WO2020177223A1 (en) | Preparation method for calcium salt-based magnesium alloy surface corrosion-resistant self-repairing coating | |
CN104313652A (en) | Preparation method of aluminum-based multiphase inert composite anode material | |
CN103060846B (en) | Method for preparing Zn-Pb-Bi-La alloy electrode material through pulse electrodeposition | |
CN103409785B (en) | A kind of titanium alloy surface reduces the nano coating preparation method of sea organism attachment | |
CN210052874U (en) | Novel anticorrosive copper-aluminum transition head of electrolytic zinc cathode plate and electrolytic zinc anode plate | |
CN103320799B (en) | Method for restraining secondary electron yield on silver coating surface of microwave component | |
Chiba et al. | Inhibition by magnetic fields of the growth of zinc dendrites from alkaline zincate baths | |
CN110424039A (en) | The preparation method of the anti-corrosion selfreparing differential arc oxidation coating of magnesium alloy based on hydrotalcite nano inhibition microcapsules | |
CN202534796U (en) | Composite metal grounding body | |
CN102586821A (en) | Tin-zinc alloy plating solution | |
CN109722580A (en) | One kind anode magnesium alloy containing Dy and the preparation method and application thereof | |
CN109778197A (en) | One kind anode magnesium alloy containing Yb and the preparation method and application thereof | |
CN109244442A (en) | A kind of porous anodized aluminum and aluminium-air cell | |
CN113293411B (en) | Gradient composite lead dioxide anode plate and preparation method and application thereof | |
Jinping et al. | Electrochemical properties of pulse plating amorphous Ni-Mo-W alloy coating in alkaline medium | |
CN203639589U (en) | Electroplating device for double-anode double-rectifier system of acid zinc-nickel alloy | |
CN110042454A (en) | A kind of dual pulse cycle commutation electrolytic phosphating method | |
CN106319577A (en) | Energy-saving and environment-friendly anode plate | |
CN109750198A (en) | One kind magnesium-alloy anode material containing Eu and the preparation method and application thereof | |
CN105862102A (en) | Passivation process for aluminum foil for air conditioner |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |