CN107815672A - A kind of production method of alkaline chemical nickel-plating applied on magnesium alloy - Google Patents
A kind of production method of alkaline chemical nickel-plating applied on magnesium alloy Download PDFInfo
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- CN107815672A CN107815672A CN201711091443.6A CN201711091443A CN107815672A CN 107815672 A CN107815672 A CN 107815672A CN 201711091443 A CN201711091443 A CN 201711091443A CN 107815672 A CN107815672 A CN 107815672A
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- Prior art keywords
- nickel
- plating
- water
- acid
- magnesium alloy
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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
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
- C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
Abstract
The present invention provides a kind of production method of the alkaline chemical nickel-plating applied on magnesium alloy, the neutral chemical nickel plating bath for being 5.5~7.0 including the pH alkali electroless nickel plating baths for being 10.0~11.5 and pH, special complex system has been used in bath system, reduce and magnesium corrosion of metal is acted on, the stability and the adhesion of base material and nickel dam of plating solution are improved, makes to obtain excellent, fine and close electroless nickel layer during nickel plating.Present invention also offers the technique of magnesium alloy two-step chemical plating nickel, first with alkali electroless nickel plating bath bottoming, reuses neutral chemical nickel plating bath and carries out thickening processing, reach required thickness.Further, the present invention is before two-step chemical plating nickel, using the pre-treating technology of ultrasonic wave alkalescence membrane removal, film is removed using a kind of alkalescence without dangers such as Cr VI, fluorides, under ultrasonic assistant effect, making magnesium alloy work-piece surface oxide-film and the releasing agent of residual, thoroughly processing is clean, so as to further increase the yields of nickel plating product.
Description
Technical field
The present invention relates to a kind of chemical nickel plating, the making of more particularly to a kind of alkaline chemical nickel-plating applied on magnesium alloy
Mode.
Background technology
Because nickel with the standard electrode EMF of magnesium differs larger, therefore chemical nickel plating, gained are directly carried out on magnesium alloy
Coating is poor with basal body binding force.In order to solve this problem, leaching zinc, alkaline activation, acid are carried out generally before chemical nickel plating
Property activation the methods of carry out surface preparation, play certain improvement result.It is exactly in magnesium alloy and nickel with leaching zinc pretreatment mode
With zinc-impregnating layer come transition between layer, to improve chemical Ni-plating layer adhesion, but in chemical nickel plating bath, the dissolving of zinc metal can contract
Short chemical nickel service life.It is most of at present to use acidic activated pretreatment, Mg alloy surface is generated a thickness moderate
MgF2 diaphragms, then directly carry out chemical nickel plating, and MgF2 diaphragms play control chemical nickel deposition velocity, can improve chemical nickel
Adhesion, but need the chemical nickel plating time longer relatively, low production efficiency.
The content of the invention
For existing technical deficiency, the present invention provides a kind of making side of the alkaline chemical nickel-plating applied on magnesium alloy
Formula.
To achieve these goals, the technical solution used in the present invention is：A kind of alkalization applied on magnesium alloy
Learn the production method of nickel plating, including alkaline electroless plating nickel solution and neutral chemical nickel plating solution：By mass percentage, alkali electroless
Nickel plating solution composition is as follows：
Nickel acetate 1~4%
Water-soluble hypophosphites 1~6%
Sodium carbonate or potassium carbonate 0.2~2%
Water-soluble citrate 1~6%
Water-Soluble Glucose hydrochlorate 1~6%
Hydrosoluble apple hydrochlorate 0.5~5%
Organic polyphosphonic salt 0.2~2%
Sodium fluoride or potassium fluoride 0.5~5%
Amino carboxylic acid 0.1~1%
Surplus is deionized water, and is 10.0~11.5 with the pH of pH adjusting agent regulation solution；
By mass percentage, neutral chemical nickel plating solution composition is as follows：
Nickel acetate 1~3%
Water-soluble hypophosphites 1~6%
Citric acid 0.2~1.5%
Lactic acid 0.5~5%
Gluconic acid 0.5~3%
Malic acid 0.5~3%
Amino carboxylic acid 0.1~1%
Neopelex 0.1~0.5%
The surplus of ammonium acid fluoride 1~5% is deionized water, and is 5.5~7.0 with the pH value of pH adjusting agent regulation solution.
By mass percentage, alkaline chemical nickel-plating solution composition is as follows：
Nickel acetate 1.5~2%
Water-soluble hypophosphites 1.5~4%
Sodium carbonate or potassium carbonate 0.4~1%
Water-soluble citrate 1.5~4%
Water-Soluble Glucose hydrochlorate 1.5~4%
Hydrosoluble apple hydrochlorate 1~3%
Organic polyphosphonic salt 0.5~1%
Sodium fluoride or potassium fluoride 1~3%
Amino carboxylic acid 0.1~0.5%
Surplus is deionized water and appropriate pH adjusting agent；
By mass percentage, neutral chemical nickel plating solution composition is as follows：
Nickel acetate 1.5~2%
Water-soluble hypophosphites 1.5~4%
Citric acid 0.2~1.5%
Lactic acid 0.8~3.5%
Gluconic acid 1.5~2%
Malic acid 1.5~2%
Amino carboxylic acid 0.1~0.5%
Neopelex 0.2~0.3%
Ammonium acid fluoride 2~3%
Surplus is deionized water and appropriate pH adjusting agent.
PH adjusting agent is sodium hydroxide, potassium hydroxide or ammoniacal liquor.
Beneficial effects of the present invention：A kind of making side of alkaline chemical nickel-plating applied on magnesium alloy provided by the invention
Formula, including pH be 10.0~11.5 alkali electroless nickel plating bath and pH be 5.5~7.0 neutral chemical nickel plating bath, in plating liquid
Special complex system has been used in system, reduce to magnesium corrosion of metal act on, improve plating solution stability and base material with
The adhesion of nickel dam, make to obtain excellent, fine and close electroless nickel layer during nickel plating.Present invention also offers magnesium alloy two-step chemical plating nickel
Technique, first with alkali electroless nickel plating bath bottoming, reuse neutral chemical nickel plating bath and carry out thickening processing, reach needed for
Thickness.
Further, the present invention, using the pre-treating technology of ultrasonic wave alkalescence membrane removal, uses one before two-step chemical plating nickel
Alkalescence of the kind without dangers such as Cr VI, fluorides removes film, under ultrasonic assistant effect, makes magnesium alloy work-piece surface oxygen
It is clean to change the thorough processing of releasing agent of film and residual, so as to further increase the yields of nickel plating product.
Embodiment
A kind of production method of alkaline chemical nickel-plating applied on magnesium alloy, including alkaline electroless plating nickel solution and neutrality
Chemical nickel-plating solution：By mass percentage, alkaline chemical nickel-plating solution composition is as follows：
Nickel acetate 1~4%
Water-soluble hypophosphites 1~6%
Sodium carbonate or potassium carbonate 0.2~2%
Water-soluble citrate 1~6%
Water-Soluble Glucose hydrochlorate 1~6%
Hydrosoluble apple hydrochlorate 0.5~5%
Organic polyphosphonic salt 0.2~2%
Sodium fluoride or potassium fluoride 0.5~5%
Amino carboxylic acid 0.1~1%
Surplus is deionized water, and is 10.0~11.5 with the pH of pH adjusting agent regulation solution；
By mass percentage, neutral chemical nickel plating solution composition is as follows：
Nickel acetate 1~3%
Water-soluble hypophosphites 1~6%
Citric acid 0.2~1.5%
Lactic acid 0.5~5%
Gluconic acid 0.5~3%
Malic acid 0.5~3%
Amino carboxylic acid 0.1~1%
Neopelex 0.1~0.5%
The surplus of ammonium acid fluoride 1~5% is deionized water, and is 5.5~7.0 with the pH value of pH adjusting agent regulation solution.
By mass percentage, alkaline chemical nickel-plating solution composition is as follows：
Nickel acetate 1.5~2%
Water-soluble hypophosphites 1.5~4%
Sodium carbonate or potassium carbonate 0.4~1%
Water-soluble citrate 1.5~4%
Water-Soluble Glucose hydrochlorate 1.5~4%
Hydrosoluble apple hydrochlorate 1~3%
Organic polyphosphonic salt 0.5~1%
Sodium fluoride or potassium fluoride 1~3%
Amino carboxylic acid 0.1~0.5%
Surplus is deionized water and appropriate pH adjusting agent；
By mass percentage, neutral chemical nickel plating solution composition is as follows：
Nickel acetate 1.5~2%
Water-soluble hypophosphites 1.5~4%
Citric acid 0.2~1.5%
Lactic acid 0.8~3.5%
Gluconic acid 1.5~2%
Malic acid 1.5~2%
Amino carboxylic acid 0.1~0.5%
Neopelex 0.2~0.3%
Ammonium acid fluoride 2~3%
Surplus is deionized water and appropriate pH adjusting agent.
PH adjusting agent is sodium hydroxide, potassium hydroxide or ammoniacal liquor.
Beneficial effects of the present invention：A kind of making side of alkaline chemical nickel-plating applied on magnesium alloy provided by the invention
Formula, including pH be 10.0~11.5 alkali electroless nickel plating bath and pH be 5.5~7.0 neutral chemical nickel plating bath, in plating liquid
Special complex system has been used in system, reduce to magnesium corrosion of metal act on, improve plating solution stability and base material with
The adhesion of nickel dam, make to obtain excellent, fine and close electroless nickel layer during nickel plating.Present invention also offers magnesium alloy two-step chemical plating nickel
Technique, first with alkali electroless nickel plating bath bottoming, reuse neutral chemical nickel plating bath and carry out thickening processing, reach needed for
Thickness.
Further, the present invention, using the pre-treating technology of ultrasonic wave alkalescence membrane removal, uses one before two-step chemical plating nickel
Alkalescence of the kind without dangers such as Cr VI, fluorides removes film, under ultrasonic assistant effect, makes magnesium alloy work-piece surface oxygen
It is clean to change the thorough processing of releasing agent of film and residual, so as to further increase the yields of nickel plating product.
Claims (3)
1. a kind of production method of alkaline chemical nickel-plating applied on magnesium alloy, including alkaline electroless plating nickel solution and neutralisation
Learn nickel plating solution：By mass percentage, alkaline chemical nickel-plating solution composition is as follows：
Nickel acetate 1~4%
Water-soluble hypophosphites 1~6%
Sodium carbonate or potassium carbonate 0.2~2%
Water-soluble citrate 1~6%
Water-Soluble Glucose hydrochlorate 1~6%
Hydrosoluble apple hydrochlorate 0.5~5%
Organic polyphosphonic salt 0.2~2%
Sodium fluoride or potassium fluoride 0.5~5%
Amino carboxylic acid 0.1~1%
Surplus is deionized water, and is 10.0~11.5 with the pH of pH adjusting agent regulation solution；
By mass percentage, neutral chemical nickel plating solution composition is as follows：
Nickel acetate 1~3%
Water-soluble hypophosphites 1~6%
Citric acid 0.2~1.5%
Lactic acid 0.5~5%
Gluconic acid 0.5~3%
Malic acid 0.5~3%
Amino carboxylic acid 0.1~1%
Neopelex 0.1~0.5%
The surplus of ammonium acid fluoride 1~5% is deionized water, and is 5.5~7.0 with the pH value of pH adjusting agent regulation solution.
2. a kind of production method of alkaline chemical nickel-plating applied on magnesium alloy according to claim 1, its feature exist
In：By mass percentage, alkaline chemical nickel-plating solution composition is as follows：Nickel acetate 1.5~2%
Water-soluble hypophosphites 1.5~4%
Sodium carbonate or potassium carbonate 0.4~1%
Water-soluble citrate 1.5~4%
Water-Soluble Glucose hydrochlorate 1.5~4%
Hydrosoluble apple hydrochlorate 1~3%
Organic polyphosphonic salt 0.5~1%
Sodium fluoride or potassium fluoride 1~3%
Amino carboxylic acid 0.1~0.5%
Surplus is deionized water and appropriate pH adjusting agent；
By mass percentage, neutral chemical nickel plating solution composition is as follows：
Nickel acetate 1.5~2%
Water-soluble hypophosphites 1.5~4%
Citric acid 0.2~1.5%
Lactic acid 0.8~3.5%
Gluconic acid 1.5~2%
Malic acid 1.5~2%
Amino carboxylic acid 0.1~0.5%
Neopelex 0.2~0.3%
Ammonium acid fluoride 2~3%
Surplus is deionized water and appropriate pH adjusting agent.
3. a kind of production method of alkaline chemical nickel-plating applied on magnesium alloy according to claim 1 or 2, its feature
It is：PH adjusting agent is sodium hydroxide, potassium hydroxide or ammoniacal liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091443.6A CN107815672A (en) | 2017-11-08 | 2017-11-08 | A kind of production method of alkaline chemical nickel-plating applied on magnesium alloy |
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|---|---|---|---|
| CN201711091443.6A CN107815672A (en) | 2017-11-08 | 2017-11-08 | A kind of production method of alkaline chemical nickel-plating applied on magnesium alloy |
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| CN107815672A true CN107815672A (en) | 2018-03-20 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215574A (en) * | 2013-04-18 | 2013-07-24 | 江门市瑞期精细化学工程有限公司 | Magnesium-alloy chemical nickel plating solution and nickel plating process thereof |
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- 2017-11-08 CN CN201711091443.6A patent/CN107815672A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215574A (en) * | 2013-04-18 | 2013-07-24 | 江门市瑞期精细化学工程有限公司 | Magnesium-alloy chemical nickel plating solution and nickel plating process thereof |
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