CN104294329A - Alkaline zinc-nickel alloy plating solution and electroplating process - Google Patents
Alkaline zinc-nickel alloy plating solution and electroplating process Download PDFInfo
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- CN104294329A CN104294329A CN201410625880.1A CN201410625880A CN104294329A CN 104294329 A CN104294329 A CN 104294329A CN 201410625880 A CN201410625880 A CN 201410625880A CN 104294329 A CN104294329 A CN 104294329A
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- plating solution
- nickel
- nickel alloy
- zinc
- alkaline zinc
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- 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
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention discloses alkaline zinc-nickel alloy plating solution which is characterized in that sodium cyanide, caustic soda, main salt capable of providing zinc ions and a nickel complex prepared from the sodium cyanide and the main salt capable of providing nickel ions are included in the plating solution; the contents of all the components in the plating solution are shown as follows: 6-14 g/L of sodium cyanide, 80-140 g/L of caustic soda and 6-16 g/L of main salt zinc oxide capable of providing the zinc ions and 10-20 /L of main salt nickel sulfate capable of providing the nickel ions. The alkaline zinc-nickel alloy plating solution has the benefits that the required components are fewer, the preparation is simple, and the cost can be reduced; a plating layer obtained through an electroplating process can be taken as a primer of other plating layers, so that the corrosion resistance of a product can be improved. The alkaline zinc-nickel alloy plating solution disclosed by the invention can be taken as a substitute of the existing alkaline zinc-nickel alloy plating solution. The invention further discloses an electroplating process using the plating solution. The electroplating process has the advantages of easiness in process operation, stability and lower cost.
Description
Technical field
What the present invention relates to is a kind of alkaline zinc-nickel alloy plating solution, also relate in the electroplating technology using this kind of plating solution.
Background technology
Zn-ni alloy deposits is widely used, and with being applied to automotive industry, computer industry, daily necessities or other the industry needing hardware, can improve greatly the erosion resistance of element.Traditional alkaline zinc-nickel alloy plating solution is made up of zinc oxide, single nickel salt, sodium hydroxide, quadrol, trolamine, nickel complex, aromatic aldehyde, additive, ammoniacal liquor.Traditional alkaline zinc-nickel alloy bath composition is many, and preparation is complicated, and its electroplating technology also more complicated.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of alkaline zinc-nickel alloy plating solution, and this kind of alkaline zinc-nickel alloy plating solution component used is few, and preparation is simple.
Present invention also offers a kind of Electrodeposition of Zn-ni Alloy In Alkaline Bath technique applying above-mentioned plating solution.
The present invention can take following technical scheme:
Alkaline zinc-nickel alloy plating solution, is characterized in that: plating solution comprises sodium cyanide, caustic soda, provides the main salt of zine ion, and by sodium cyanide and the nickel complex providing the main salt of nickel ion to make, each component is following content in the plating solution,
Make an Electrodeposition of Zn-ni Alloy In Alkaline Bath technique for above-mentioned plating solution,
Comprise the following steps,
1) respectively to sodium cyanide, caustic soda, provide the main salt of zine ion to be undertaken proportioning molten night, then pouring in plating tank by its amount in the plating solution;
2) by the good nickel complex of plating solution requirement proportioning;
3) nickel complex is poured in plating tank;
4) in plating tank, conventional Zinc-nickel alloy electroplating additive is added;
5) be 0.8 ~ 3A/dm at electric current
2, temperature is under the condition of normal temperature, and anode adopts zine plate or iron plate to electroplate.
Technique scheme has such technique effect:
1, alkaline zinc-nickel alloy plating solution of the present invention, its plating solution component used is compared with conventional alkaline admiro bath composition quantity, and required component is few, can be cost-saving.And preparation is simple, the operational requirement required for the operation of preparation reduces, and can provide production efficiency, also can reduce production cost.
2, alkaline zinc-nickel alloy plating solution of the present invention, can as prior art neutral and alkali admiro plating solution substitute.
3, the coating that electroplating technology of the present invention draws as the bottoming of other coating, namely as the basic unit of other coating, can improve the preservative property of product.As the bottoming needing the table coating reaching food safety requirements product on performance quality, other surperficial existing hardness, antiseptic property can be made, can food safety requirements be reached again especially.
4, solution dispersibility of the present invention is relatively good, and in broad current density range, coating alloy component proportions is relatively more even, and thickness of coating is also relatively more even, and little to the corrodibility of equipment and workpiece, technological operation is easy, and process stabilizing, cost is lower.
5, the admiro fusing point high (can reach 750 degree to 800 degree) that draws of electroplating technology of the present invention, high thermal resistance is good, and hydrogen embrittlement is good, is suitable for the plating on high-strength steel.
Embodiment
Below in conjunction with specific embodiment, the present invention is specifically described.
Alkaline zinc-nickel alloy plating solution, is characterized in that: plating solution comprises sodium cyanide, caustic soda, provides the main salt of zine ion, and by sodium cyanide and the nickel complex providing the main salt of nickel ion to make, each component is following content in the plating solution,
In nickel complex, sodium cyanide is as complexing agent, and prussiate plays complexing, the effect of conduction and electrode activation.
In addition, sodium cyanide concentration free in plating solution is higher, and solution dispersibility improves, and cathodic polarization increases, and crystallization is fine and closely woven, and thickness is even.Can also increase binding force of cladding material, so sodium cyanide can as the medium improving quality of coating, sodium cyanide is also fine conducting salt, adds the conductive capability of plating solution.At reduction bath voltage simultaneously, dispersive ability and the covering power of plating solution is also improved.
The weight content of each component can take following proportioning mode.
Plating solution preparation embodiment:
Alkaline zinc-nickel alloy plating solution of the present invention, its plating solution component used is compared with conventional alkaline admiro bath composition quantity, and required component is few, can be cost-saving.And preparation is simple, the operational requirement required for the operation of preparation reduces, and can provide production efficiency, also can reduce production cost.
Use an electroplating technology for the alkaline zinc-nickel alloy of above-mentioned plating solution, comprise the following steps,
1) respectively to sodium cyanide, caustic soda, provide the main salt of zine ion to carry out proportioning molten night the size of the amount (can with reference to above-mentioned example) by its amount in the plating solution, then pour in plating tank.Being example by zinc oxide as providing the main salt of zine ion, now sodium cyanide, caustic soda, its amount in the plating solution of zinc oxide can being carried out proportioning molten night.
2) by the good nickel complex of plating solution requirement proportioning.3) nickel complex is poured in plating tank;
4) in plating tank, conventional traditional Zinc-nickel alloy electroplating additive is added;
5) be 0.8 ~ 3A/dm at electric current
2, temperature is under the condition of normal temperature, and anode adopts zine plate or iron plate to electroplate.
The principle of electroplating technology and the similar of routine.
Alkaline zinc-nickel alloy plating solution of the present invention, required component is few, and preparation is simple, can be cost-saving, also can reduce production cost.The coating that electroplating technology draws as the bottoming of other coating, namely as the basic unit of other coating, can improve the preservative property of product.As the bottoming needing the table coating reaching food safety requirements product on performance quality, other surperficial existing hardness, antiseptic property can be made, can food safety requirements be reached again especially.Alkaline zinc-nickel alloy plating solution of the present invention, can as prior art neutral and alkali admiro plating solution substitute.Electroplating technology processing ease of the present invention, process stabilizing, cost is lower.
Claims (4)
1. alkaline zinc-nickel alloy plating solution, is characterized in that: plating solution comprises sodium cyanide, caustic soda, provides the main salt of zine ion, and by sodium cyanide and the nickel complex providing the main salt of nickel ion to make, each component is following content in the plating solution,
。
2. alkaline zinc-nickel alloy plating solution according to claim 1, is characterized in that: in plating solution, and the main salt zinc oxide providing zine ion is 10g/L.
3. alkaline zinc-nickel alloy plating solution according to claim 1, is characterized in that: in plating solution, and providing the main salt of nickel ion to be single nickel salt is 15g/L.
4. use an electroplating technology for the alkaline zinc-nickel alloy of plating solution described in claim 1 or 2, it is characterized in that: comprise the following steps,
1) respectively to sodium cyanide, caustic soda, provide the main salt of zine ion to be undertaken proportioning molten night, then pouring in plating tank by its amount in the plating solution;
2) by the good nickel complex of plating solution requirement proportioning;
3) nickel complex is poured in plating tank;
4) in plating tank, conventional Zinc-nickel alloy electroplating additive is added;
5) be 0.8 ~ 3A/dm at electric current
2, temperature is under the condition of normal temperature, and anode adopts zine plate or iron plate to electroplate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410625880.1A CN104294329A (en) | 2014-11-06 | 2014-11-06 | Alkaline zinc-nickel alloy plating solution and electroplating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410625880.1A CN104294329A (en) | 2014-11-06 | 2014-11-06 | Alkaline zinc-nickel alloy plating solution and electroplating process |
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| CN104294329A true CN104294329A (en) | 2015-01-21 |
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| CN201410625880.1A Pending CN104294329A (en) | 2014-11-06 | 2014-11-06 | Alkaline zinc-nickel alloy plating solution and electroplating process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5090539A (en) * | 1973-12-13 | 1975-07-19 | ||
| JPS61183491A (en) * | 1985-02-08 | 1986-08-16 | Usui Internatl Ind Co Ltd | Corrosion resistant double coated steel material |
| CN101643925A (en) * | 2009-09-01 | 2010-02-10 | 大连海事大学 | Non-cyanide converting method for cyanide plated zinc |
| EP2384800A1 (en) * | 2010-05-07 | 2011-11-09 | Dr.Ing. Max Schlötter GmbH & Co. KG | Regeneration of alkaline zinc electrolytes by removing cyanidiones |
| CN102418125A (en) * | 2011-12-17 | 2012-04-18 | 张家港舒马克电梯安装维修服务有限公司镀锌分公司 | Zinc-nickel alloy electroplating |
| CN104120465A (en) * | 2013-04-28 | 2014-10-29 | 国家电网公司 | Alkaline zinc-nickel alloy electroplating solution as well as preparation method and application thereof |
-
2014
- 2014-11-06 CN CN201410625880.1A patent/CN104294329A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5090539A (en) * | 1973-12-13 | 1975-07-19 | ||
| JPS61183491A (en) * | 1985-02-08 | 1986-08-16 | Usui Internatl Ind Co Ltd | Corrosion resistant double coated steel material |
| CN101643925A (en) * | 2009-09-01 | 2010-02-10 | 大连海事大学 | Non-cyanide converting method for cyanide plated zinc |
| EP2384800A1 (en) * | 2010-05-07 | 2011-11-09 | Dr.Ing. Max Schlötter GmbH & Co. KG | Regeneration of alkaline zinc electrolytes by removing cyanidiones |
| CN102418125A (en) * | 2011-12-17 | 2012-04-18 | 张家港舒马克电梯安装维修服务有限公司镀锌分公司 | Zinc-nickel alloy electroplating |
| CN104120465A (en) * | 2013-04-28 | 2014-10-29 | 国家电网公司 | Alkaline zinc-nickel alloy electroplating solution as well as preparation method and application thereof |
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Application publication date: 20150121 |