CN110885975A - Magnesium plating method for metal surface - Google Patents
Magnesium plating method for metal surface Download PDFInfo
- Publication number
- CN110885975A CN110885975A CN201910994584.1A CN201910994584A CN110885975A CN 110885975 A CN110885975 A CN 110885975A CN 201910994584 A CN201910994584 A CN 201910994584A CN 110885975 A CN110885975 A CN 110885975A
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- Prior art keywords
- magnesium
- plating
- repair liquid
- metal surface
- water
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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
- C23C18/52—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 using reducing agents for coating with metallic material not provided for in a single one of groups C23C18/32 - C23C18/50
-
- 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
- C23C18/1601—Process or apparatus
- C23C18/1603—Process or apparatus coating on selected surface areas
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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)
- Electroplating Methods And Accessories (AREA)
- Chemically Coating (AREA)
Abstract
The invention relates to a magnesium plating method for a metal surface, which comprises a first magnesium plating process and a second magnesium plating process, wherein the first magnesium plating process and the second magnesium plating process are different; plating magnesium on part of the metal surface by the first magnesium plating process, and plating magnesium on the metal surface without plating magnesium by the second magnesium plating process; in the second magnesium plating process, the magnesium-free part is contacted with the repair liquid for chemical reaction, and the heating temperature during the chemical reaction is 30-40 ℃; after the magnesium-free part reacts with the repair liquid, washing and drying are carried out; the solute of the repair liquid is magnesium sulfate, thiourea and sodium chloride, and the solvent of the repair liquid is water; the mass-to-water volume ratio of the magnesium sulfate is 35-40: 1, unit is gram/liter; the volume ratio of the mass of the thiourea to the water is 40-50: 1, unit is gram/liter; the volume ratio of the mass of the sodium chloride to the volume of the water is 2-6: 1 in grams/liter. The invention realizes a new method for quickly plating magnesium, and the magnesium plating film has the advantages of uniform film, smooth light quantity and good conductivity.
Description
Technical Field
The invention relates to the technical field of metal surface treatment, in particular to a magnesium plating method for a metal surface, and more particularly relates to a repairing and repairing method for a magnesium plating surface.
Background
At present, the phenomenon of scratch damage of an outer surface coating is found in the process of assembling some magnesium-plated parts, and local repair is needed, but the formula components of the repair liquid for local damage of the magnesium-plated film are complex and are not convenient to modulate, and the repair method has high cost and low efficiency.
Disclosure of Invention
The purpose of the invention is: provides the magnesium plating repair liquid and simplifies the magnesium plating repair process.
The technical scheme of the invention is as follows:
the technical scheme is as follows: providing a magnesium plating method for a metal surface, wherein the magnesium plating method comprises a first magnesium plating process and a second magnesium plating process, and the first magnesium plating process and the second magnesium plating process are different; plating magnesium on part of the metal surface by the first magnesium plating process, and plating magnesium on the metal surface without plating magnesium by the second magnesium plating process;
in the second magnesium plating process, the magnesium-free part is contacted with the repair liquid for chemical reaction, and the heating temperature during the chemical reaction is 30-40 ℃; after the magnesium-free part reacts with the repair liquid, washing and drying are carried out;
the solute of the repair liquid is magnesium sulfate, thiourea and sodium chloride, and the solvent of the repair liquid is water; the mass-to-water volume ratio of the magnesium sulfate is 35-40: 1, unit is gram/liter; the volume ratio of the mass of the thiourea to the water is 40-50: 1, unit is gram/liter; the volume ratio of the mass of the sodium chloride to the volume of the water is 2-6: 1 in grams/liter.
Furthermore, the reaction time of the magnesium-plating-free part and the repair liquid is 25-40 seconds.
Further, the contact of the magnesium-free portion with the repair liquid is performed by spraying, coating, and dipping.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 35 ℃, and the reaction time is 30 seconds.
Providing a magnesium plating method for a metal surface, wherein the magnesium plating method comprises a first magnesium plating process and a second magnesium plating process, and the first magnesium plating process and the second magnesium plating process are different; the first magnesium plating process is used for plating magnesium on the metal surface, then the magnesium plating on part of the metal surface is removed, so that part of the metal surface without magnesium plating is formed, and the second magnesium plating process is used for plating magnesium on the metal surface without magnesium plating;
in the second magnesium plating process, the magnesium-free part is contacted with the repair liquid for chemical reaction, and the heating temperature during the chemical reaction is 30-40 ℃; and after the magnesium-free part reacts with the repair liquid, washing and drying are carried out.
The solute of the repair liquid is magnesium sulfate, thiourea and sodium chloride, and the solvent of the repair liquid is water; the mass-to-water volume ratio of the magnesium sulfate is 35-40: 1, unit is gram/liter; the volume ratio of the mass of the thiourea to the water is 40-50: 1, unit is gram/liter; the volume ratio of the mass of the sodium chloride to the volume of the water is 2-6: 1 in grams/liter.
Furthermore, the reaction time of the magnesium-plating-free part and the repair liquid is 25-40 seconds.
Further, the contact of the magnesium-free portion with the repair liquid is performed by spraying, coating, and dipping.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 35 ℃, and the reaction time is 30 seconds.
Providing a repairing method of a magnesium-plated metal surface, wherein a magnesium-plated removal part exists on the magnesium-plated metal surface, the magnesium-plated metal surface is in contact with a repairing solution for chemical reaction, and the heating temperature in the chemical reaction is 30-40 ℃; after the magnesium-free part reacts with the repair liquid, washing and drying are carried out;
the solute of the repair liquid is magnesium sulfate, thiourea and sodium chloride, and the solvent of the repair liquid is water; the mass-to-water volume ratio of the magnesium sulfate is 35-40: 1, unit is gram/liter; the volume ratio of the mass of the thiourea to the water is 40-50: 1, unit is gram/liter; the volume ratio of the mass of the sodium chloride to the volume of the water is 2-6: 1 in grams/liter.
Furthermore, the reaction time of the magnesium-plating-free part and the repair liquid is 25-40 seconds.
Further, the contact of the magnesium-free portion with the repair liquid is performed by spraying, coating, and dipping.
Further, the removal of the magnesium plated on the metal surface is realized through machining, damage or abrasion.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 35 ℃, and the reaction time is 30 seconds.
Compared with the technical schemes, in the configuration of the repair liquid, magnesium sulfate, thiourea and sodium chloride are sequentially added into water to form a solution, so that the repair effect of the repair liquid is optimal.
The above mentioned method is most suitable for plating magnesium on the surface of copper or copper alloy.
The invention has the advantages that: the invention realizes a new method for quickly plating magnesium, and the magnesium plating film has the advantages of uniform film, smooth light quantity and good conductivity.
Detailed Description
The present invention is described in further detail below.
Example 1
The outer circle is phi 350 shell made of magnesium alloy. Removing film from the surface of the inner cavity wall after magnesium plating by machining method, and plating magnesium by chemical method
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate is 35: 1, unit is gram/liter; the volume ratio of thiourea to water is 40: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 6: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 40 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 30 ℃, and the reaction time is 40 seconds.
Example 2
The outer circle of the end cover is phi 389, and the end cover is made of magnesium alloy. Removing film on the surface of the outer seam allowance after magnesium plating by a machining method, and plating magnesium by a chemical method
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate is 40: 1, unit is gram/liter; the mass to water volume ratio of thiourea was 50: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 2: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 30 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 40 ℃, and the reaction time is 30 seconds.
Example 3
The outer circle is phi 786 shell made of magnesium alloy. Removing film on the surface of the inner seam allowance after magnesium plating by a machining method, and plating magnesium by a chemical method
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate was 38: 1, unit is gram/liter; the mass to water volume ratio of thiourea was 45: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 4: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 35 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 36 ℃, and the reaction time is 35 seconds.
Example 4
The outer circle is phi 455 shell made of magnesium alloy. After magnesium plating, the surface of the inner cavity wall is locally filmless, and the magnesium plating is carried out by a chemical method
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate is 35: 1, unit is gram/liter; the volume ratio of thiourea to water is 40: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 6: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 40 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 30 ℃, and the reaction time is 40 seconds.
Example 5
The outer circle of the end cover is phi 40, and the end cover is made of magnesium alloy. After magnesium plating, the surface of the inner seam allowance is free of film, and magnesium plating is carried out by a chemical method
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate is 40: 1, unit is gram/liter; the mass to water volume ratio of thiourea was 50: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 2: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 30 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 40 ℃, and the reaction time is 30 seconds.
Example 6
The outer circle is phi 10 shell made of magnesium alloy. After magnesium plating, the surface of the inner seam allowance is free of film, and magnesium plating is carried out by a chemical method
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate was 38: 1, unit is gram/liter; the mass to water volume ratio of thiourea was 45: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 4: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 35 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 36 ℃, and the reaction time is 35 seconds.
Example 7
The outer circle is phi 455 shell made of magnesium alloy. Coating magnesium on the surface of the inner cavity wall after plating magnesium by chemical method
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate is 35: 1, unit is gram/liter; the volume ratio of thiourea to water is 40: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 6: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 40 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 30 ℃, and the reaction time is 40 seconds.
Example 8
The outer circle of the end cover is phi 12, and the end cover is made of magnesium alloy. After the magnesium plating, the surface film layer of the inner seam allowance is damaged, and the magnesium plating is carried out by a chemical method
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate is 40: 1, unit is gram/liter; the mass to water volume ratio of thiourea was 50: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 2: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 30 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 40 ℃, and the reaction time is 30 seconds.
Example 9
The outer circle is phi 5 shell made of magnesium alloy. Chemical method for plating magnesium for inner wall surface film damage after magnesium plating
Solutes of the repair liquid are magnesium sulfate, thiourea and sodium chloride, and a solvent of the repair liquid is water; the mass to water volume ratio of magnesium sulfate was 38: 1, unit is gram/liter; the mass to water volume ratio of thiourea was 45: 1, unit is gram/liter; the ratio of the mass of sodium chloride to the volume of water is 4: 1 in grams/liter.
Further, the reaction time of the magnesium-free part and the repair liquid is 35 seconds.
Further, the magnesium-free portion is brought into contact with the repair liquid by coating.
Further, the heating temperature of the reaction between the magnesium-free part and the repair liquid is 36 ℃, and the reaction time is 35 seconds.
Claims (10)
1. A magnesium plating method for a metal surface comprises a first magnesium plating process and a second magnesium plating process, wherein the first magnesium plating process and the second magnesium plating process are different; plating magnesium on part of the metal surface by the first magnesium plating process, and plating magnesium on the metal surface without plating magnesium by the second magnesium plating process;
in the second magnesium plating process, the magnesium-free part is contacted with the repair liquid for chemical reaction, and the heating temperature during the chemical reaction is 30-40 ℃; after the magnesium-free part reacts with the repair liquid, washing and drying are carried out;
the solute of the repair liquid is magnesium sulfate, thiourea and sodium chloride, and the solvent of the repair liquid is water; the mass-to-water volume ratio of the magnesium sulfate is 35-40: 1, unit is gram/liter; the volume ratio of the mass of the thiourea to the water is 40-50: 1, unit is gram/liter; the volume ratio of the mass of the sodium chloride to the volume of the water is 2-6: 1 in grams/liter.
2. The method of magnesium plating of a metal surface of claim 1, wherein: the reaction time of the magnesium-plating-free part and the repair liquid is 25-40 seconds.
3. The method of magnesium plating of a metal surface of claim 1, wherein: the magnesium-free portion is brought into contact with the repair liquid by spraying, coating and soaking.
4. The method of magnesium plating of a metal surface of claim 1, wherein: the heating temperature of the reaction between the magnesium-free part and the repair liquid is 35 ℃, and the reaction time is 30 seconds.
5. A magnesium plating method for a metal surface comprises a first magnesium plating process and a second magnesium plating process, wherein the first magnesium plating process and the second magnesium plating process are different; the first magnesium plating process is used for plating magnesium on the metal surface, then the magnesium plating on part of the metal surface is removed, so that part of the metal surface without magnesium plating is formed, and the second magnesium plating process is used for plating magnesium on the metal surface without magnesium plating;
in the second magnesium plating process, the magnesium-free part is contacted with the repair liquid for chemical reaction, and the heating temperature during the chemical reaction is 30-40 ℃; and after the magnesium-free part reacts with the repair liquid, washing and drying are carried out.
The solute of the repair liquid is magnesium sulfate, thiourea and sodium chloride, and the solvent of the repair liquid is water; the mass-to-water volume ratio of the magnesium sulfate is 35-40: 1, unit is gram/liter; the volume ratio of the mass of the thiourea to the water is 40-50: 1, unit is gram/liter; the volume ratio of the mass of the sodium chloride to the volume of the water is 2-6: 1 in grams/liter.
6. The method of magnesium plating of a metal surface according to claim 5, wherein: the reaction time of the magnesium-plating-free part and the repair liquid is 25-40 seconds.
7. The method of magnesium plating of a metal surface according to claim 5, wherein: the magnesium-free portion is brought into contact with the repair liquid by spraying, coating and soaking.
8. The method of magnesium plating of a metal surface according to claim 5, wherein: the heating temperature of the reaction between the magnesium-free part and the repair liquid is 35 ℃, and the reaction time is 30 seconds.
9. The repairing method of the magnesium-plated metal surface comprises the steps that a magnesium-plated removal part exists on the magnesium-plated metal surface, the magnesium-plated metal surface is in contact with a repairing liquid to carry out chemical reaction, and the heating temperature during the chemical reaction is 30-40 ℃; after the magnesium-free part reacts with the repair liquid, washing and drying are carried out;
the solute of the repair liquid is magnesium sulfate, thiourea and sodium chloride, and the solvent of the repair liquid is water; the mass-to-water volume ratio of the magnesium sulfate is 35-40: 1, unit is gram/liter; the volume ratio of the mass of the thiourea to the water is 40-50: 1, unit is gram/liter; the volume ratio of the mass of the sodium chloride to the volume of the water is 2-6: 1 in grams/liter.
10. The method for repairing a magnesium-plated metal surface according to claim 8, wherein the heating temperature for the reaction of the magnesium-non-plated portion with the repair liquid is 35 ℃ and the reaction time is 30 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994584.1A CN110885975A (en) | 2019-10-18 | 2019-10-18 | Magnesium plating method for metal surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994584.1A CN110885975A (en) | 2019-10-18 | 2019-10-18 | Magnesium plating method for metal surface |
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| CN110885975A true CN110885975A (en) | 2020-03-17 |
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| CN201910994584.1A Pending CN110885975A (en) | 2019-10-18 | 2019-10-18 | Magnesium plating method for metal surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112251741A (en) * | 2020-11-13 | 2021-01-22 | 北京曙光航空电气有限责任公司 | Preparation and repair method of nickel plating film repair liquid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011804A (en) * | 2016-07-25 | 2016-10-12 | 吴旭丹 | Anti-corrosion chemical plating liquid and application thereof to drilling drill rod |
| CN106086824A (en) * | 2016-07-25 | 2016-11-09 | 吴用镜 | A kind of based on magnesium fluosilicate creep into drilling rod chemical plating fluid |
-
2019
- 2019-10-18 CN CN201910994584.1A patent/CN110885975A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011804A (en) * | 2016-07-25 | 2016-10-12 | 吴旭丹 | Anti-corrosion chemical plating liquid and application thereof to drilling drill rod |
| CN106086824A (en) * | 2016-07-25 | 2016-11-09 | 吴用镜 | A kind of based on magnesium fluosilicate creep into drilling rod chemical plating fluid |
Non-Patent Citations (1)
| Title |
|---|
| 周伯劲: "《试剂化学》", 30 June 1980, 广东省韶关市科协技术协会 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112251741A (en) * | 2020-11-13 | 2021-01-22 | 北京曙光航空电气有限责任公司 | Preparation and repair method of nickel plating film repair liquid |
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Application publication date: 20200317 |