CN107354449A - A kind of method of magnesium alloy surface chemical nickel plating - Google Patents
A kind of method of magnesium alloy surface chemical nickel plating Download PDFInfo
- Publication number
- CN107354449A CN107354449A CN201710643605.6A CN201710643605A CN107354449A CN 107354449 A CN107354449 A CN 107354449A CN 201710643605 A CN201710643605 A CN 201710643605A CN 107354449 A CN107354449 A CN 107354449A
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- CN
- China
- Prior art keywords
- alloy surface
- nickel plating
- plating
- phosphorus
- magnesium alloy
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- 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.)
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Classifications
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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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1837—Multistep pretreatment
- C23C18/1844—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses a kind of method of magnesium alloy surface chemical nickel plating, belong to technical field of surface, comprise the following steps：A. alkali cleaning；B. cleaned after alkali cleaning using the distilled water of normal temperature；C. pickling；D. Mg alloy surface is handled 5 ~ 10 minutes at room temperature using fluorine-containing activating solution, one layer of magnesium fluoride film is formed in Mg alloy surface；E. phosphorus nickel plating solution, high phosphorus nickel plating solution carry out plating to the magnesium alloy after cleaning in using, and two layers of phosphorus nickel coating is formed in Mg alloy surface；F. plating is carried out to magnesium alloy using low-phosphorous nickel plating solution；G. cleaning, drying, apply, and dry in being carried out using acrylic resin.The greasy dirt and oxide-film of Mg alloy surface are thoroughly removed, Mg alloy surface is fully activated, improves corrosion resistance and the adhesion with coating；One layer can be formed using multiple layer nickel plating technique uniformly in Mg alloy surface and there is good protection, the coating of abrasion resistant effect, avoid overcoat is uneven from causing corrosion phenomenon occurs.
Description
Technical field
The present invention relates to technical field of surface, in particular to a kind of method of magnesium alloy surface chemical nickel plating.
Background technology
Magnesium alloy is described as the green metal structural material of 21 century, and it is excellent to have that density is low, specific strength and specific stiffness are high
Point, increasingly extensive application is obtained in auto industry, aerospace industries, electronics industry.The chemical property of magnesium is active, electricity
Electrode potential is low, easily corrodes in natural environment, and effective corrosion protection realizes that business application just shows to magnesium alloy on wheel hub
Obtain extremely urgent and necessary.The corrosion resistance of magnesium alloy is very poor, constrains the use of magnesium alloy.Therefore, Structure of magnesium alloy material
Appropriate surface treatment is carried out before use, to improve its corrosion resistance, this performance advantage to playing magnesium and magnesium alloy
Have great significance.
The content of the invention
It is an object of the invention to provide a kind of method of magnesium alloy surface chemical nickel plating, to solve the corrosion-resistant of magnesium alloy
Problem.
To realize the object of the invention, the technical scheme that uses for：A kind of method of magnesium alloy surface chemical nickel plating, including with
Lower step：
A. alkali cleaning is with oil removing and attachment；
B. cleaned after alkali cleaning using the distilled water of normal temperature；
C. pickling, pickle are that Mg alloy surface is handled 10 ~ 60 seconds under normal temperature；
D. Mg alloy surface is handled 5 ~ 10 minutes at room temperature using fluorine-containing activating solution, one layer of fluorination is formed in Mg alloy surface
Magnesium film；
E. phosphorus nickel plating solution, high phosphorus nickel plating solution carry out plating to the magnesium alloy after cleaning in using, and are formed in Mg alloy surface
Two layers of phosphorus nickel coating, middle phosphorus nickel coating and high phosphorus nickel coating are followed successively by from the inside to the outside；
F. plating is carried out to magnesium alloy using low-phosphorous nickel plating solution, low-phosphorous nickel coating is formed on the high phosphorus nickel coating.
Middle phosphorus nickel plating solution pH value is 4.3 ~ 4.8 in the step E, and plating temperature is 80 ~ 90 DEG C, plating time 20 ~ 60
Minute, phosphorus content is 5% ~ 10%.
High phosphorus nickel plating solution pH value is 4.5 ~ 5 in the step E, and plating temperature is 80 ~ 90 DEG C, 20 ~ 60 points of plating time
Clock, phosphorus content are 10% ~ 15%.
Low-phosphorous nickel plating solution pH value is 4.3 ~ 4.8 in the step F, and plating temperature is 80 ~ 90 DEG C, plating time 20 ~ 60
Minute, phosphorus content is 1% ~ 5%.
The invention has the advantages that
Thoroughly remove Mg alloy surface greasy dirt and oxide-film, Mg alloy surface is fully activated, improve corrosion resistance with
And the adhesion with coating；The advantages of having given full play to low-phosphorous nickel coating, middle phosphorus nickel coating and high phosphorus nickel coating, is plated using multilayer
Nickel technique can form one layer uniformly in Mg alloy surface and have good protection, the coating of abrasion resistant effect, avoid overcoat uneven
It is even to cause corrosion phenomenon occurs.
Embodiment
The present invention is described in further detail below by specific examples of the implementation.
The method of magnesium alloy surface chemical nickel plating provided by the invention, comprises the following steps：
A. alkali cleaning is with oil removing and attachment；
B. cleaned after alkali cleaning using the distilled water of normal temperature；
C. pickling, pickle are that Mg alloy surface is handled 10 ~ 60 seconds under normal temperature；
D. Mg alloy surface is handled 5 ~ 10 minutes at room temperature using fluorine-containing activating solution, one layer of fluorination is formed in Mg alloy surface
Magnesium film；
E. phosphorus nickel plating solution, high phosphorus nickel plating solution carry out plating to the magnesium alloy after cleaning in using, and are formed in Mg alloy surface
Two layers of phosphorus nickel coating, middle phosphorus nickel coating and high phosphorus nickel coating are followed successively by from the inside to the outside；
F. plating is carried out to magnesium alloy using low-phosphorous nickel plating solution, low-phosphorous nickel coating is formed on the high phosphorus nickel coating.
Middle phosphorus nickel plating solution pH value is 4.3 ~ 4.8 in the step E, and plating temperature is 80 ~ 90 DEG C, plating time 20 ~ 60
Minute, phosphorus content is 5% ~ 10%.
High phosphorus nickel plating solution pH value is 4.5 ~ 5 in the step E, and plating temperature is 80 ~ 90 DEG C, 20 ~ 60 points of plating time
Clock, phosphorus content are 10% ~ 15%.
Low-phosphorous nickel plating solution pH value is 4.3 ~ 4.8 in the step F, and plating temperature is 80 ~ 90 DEG C, plating time 20 ~ 60
Minute, phosphorus content is 1% ~ 5%.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, there can be various modifications and variations in the spirit and principles in the present invention, these equivalent modifications or replacement etc.,
It is all contained within protection scope of the present invention.
Claims (4)
- A kind of 1. method of magnesium alloy surface chemical nickel plating, it is characterised in that comprise the following steps：A. alkali cleaning is with oil removing and attachment；B. cleaned after alkali cleaning using the distilled water of normal temperature；C. pickling, pickle are that Mg alloy surface is handled 10 ~ 60 seconds under normal temperature；D. Mg alloy surface is handled 5 ~ 10 minutes at room temperature using fluorine-containing activating solution, one layer of fluorination is formed in Mg alloy surface Magnesium film；E. phosphorus nickel plating solution, high phosphorus nickel plating solution carry out plating to the magnesium alloy after cleaning in using, and are formed in Mg alloy surface Two layers of phosphorus nickel coating, middle phosphorus nickel coating and high phosphorus nickel coating are followed successively by from the inside to the outside；F. plating is carried out to magnesium alloy using low-phosphorous nickel plating solution, low-phosphorous nickel coating is formed on the high phosphorus nickel coating.
- 2. the method for magnesium alloy surface chemical nickel plating according to claim 1, it is characterised in that middle phosphorus in the step E Nickel plating solution pH value is 4.3 ~ 4.8, and plating temperature is 80 ~ 90 DEG C, plating time 20 ~ 60 minutes, and phosphorus content is 5% ~ 10%.
- 3. the method for magnesium alloy surface chemical nickel plating according to claim 1, it is characterised in that high phosphorus in the step E Nickel plating solution pH value is 4.5 ~ 5, and plating temperature is 80 ~ 90 DEG C, plating time 20 ~ 60 minutes, and phosphorus content is 10% ~ 15%.
- 4. the method for magnesium alloy surface chemical nickel plating according to claim 1, it is characterised in that low-phosphorous in the step F Nickel plating solution pH value is 4.3 ~ 4.8, and plating temperature is 80 ~ 90 DEG C, plating time 20 ~ 60 minutes, and phosphorus content is 1% ~ 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643605.6A CN107354449A (en) | 2017-07-31 | 2017-07-31 | A kind of method of magnesium alloy surface chemical nickel plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643605.6A CN107354449A (en) | 2017-07-31 | 2017-07-31 | A kind of method of magnesium alloy surface chemical nickel plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107354449A true CN107354449A (en) | 2017-11-17 |
Family
ID=60286739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710643605.6A Withdrawn CN107354449A (en) | 2017-07-31 | 2017-07-31 | A kind of method of magnesium alloy surface chemical nickel plating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107354449A (en) |
-
2017
- 2017-07-31 CN CN201710643605.6A patent/CN107354449A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171117 |
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| WW01 | Invention patent application withdrawn after publication |