CN105543913A - Palladium-cobalt alloy electroplating liquid and technology of electroplating spectacle frame with same - Google Patents
Palladium-cobalt alloy electroplating liquid and technology of electroplating spectacle frame with same Download PDFInfo
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- CN105543913A CN105543913A CN201610104626.6A CN201610104626A CN105543913A CN 105543913 A CN105543913 A CN 105543913A CN 201610104626 A CN201610104626 A CN 201610104626A CN 105543913 A CN105543913 A CN 105543913A
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- palladium
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Classifications
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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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- 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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
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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
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention discloses a formula of palladium-cobalt alloy electroplating liquid. The palladium-cobalt alloy electroplating liquid is prepared from, by mass, 60-80 parts of a carboxylic acid compound, 20-40 parts of an alkali metal complexing agent, 20-40 parts of dipotassium hydrogen phosphate, 2-5 parts of ammonium palladous chloride, 10-30 parts of cobalt chloride and 0.05-0.15 part of a brightener. During preparation, cobalt chloride and the carboxylic acid compound are mixed and react with each other; then, the remaining raw materials are mixed in a reaction kettle, and the temperature of the reaction kettle is controlled to be 25-45 DEG C; the PH value is adjusted to range between 8 and 9.5; the mixture is evenly stirred and filtered, and the corresponding electroplating liquid can be obtained. The technology for electroplating a metal frame with the electroplating liquid includes the following steps that a workpiece is arranged on a hanging tool; ultrasonic wax removal is conducted; ultrasonic oil removal and electrolytic oil removal are conducted; electrolytic activation is carried out; nickel pre-plating is carried out; copper pre-plating is carried out; acid copper and nickel are brightened; the palladium-cobalt alloy electroplating liquid is subjected to electrotinning; ultrasonic pure water cleaning is carried out; a film is added through electrophoresis and solidification is conducted; and the metal frame is packaged and put in a storage.
Description
Technical field
The invention belongs to electroplate liquid technical field, especially relate to a kind of Pd-Co alloy electroplate liquid and the technique with its plating frame.
Background technology
At present, better protecting effect can be played to the skin plating of metal spectacle frame; Existing common electroplate liquid has tin-cobalt alloy plating solution, existing tin-cobalt alloy plating solution has following several plating: the pyrophosphate plating solution of the major ingredient such as an alkali metal salt 1, containing tetra-sodium, when this plating solution uses for a long time, plating solution easily produces throw out, need to prevent sedimentary generation to add appropriate metal chelating agent and the oxidation inhibitor of tin in the plating solution, this causes technology difficulty larger; 2, the fluorochemical plating solution containing major ingredient such as SnF2 and NaHF2, this plating solution contains larger toxicity, and its environmental-protecting performance is poor; 3, the phosphoric acid ester plating solution containing major ingredient such as phosphate compounds, this plating solution after a procedure its coating stress is higher, easily crackle occurs, and causes work-ing life shorter.
Summary of the invention
The object of the invention is the deficiency existed for above-mentioned prior art, a kind of Pd-Co alloy electroplate liquid and the technique with its plating frame be provided, it has, and technique is simple, environmental protection, corrosion resistance and good and wear-resisting feature.
To achieve these goals, the technical solution adopted in the present invention is: a kind of Pd-Co alloy electroplate liquid, and its formula calculates with mass fraction and is made up of following component: carboxylic acid compound 60 ~ 80 parts; Basic metal complexing agent 20 ~ 40 parts; Dipotassium hydrogen phosphate 20 ~ 40 parts; Ammonium chloride palladium 2 ~ 5 parts; Cobalt chloride 10 ~ 30 parts; Brightening agent 0.05 ~ 0.15 part; In the preparation, first by cobalt chloride and carboxylic acid compound hybrid reaction; Mixed in a kettle. by remaining raw material, the temperature of reactor controls at 25 ~ 45 DEG C again; Regulate pH value, make its pH value between 8 ~ 9.5; Carry out stirring and filter and can obtain corresponding electroplate liquid.
Described carboxylic acid compound 70 parts; Basic metal complexing agent 30 parts; Dipotassium hydrogen phosphate 30 parts; Ammonium chloride palladium 3.5 parts; Brightening agent 0.1 part.
Described carboxylic acid compound is sodium acetate, sodium malonate and pentanedioic acid potassium.
A technique for Pd-Co alloy electroplate liquid plating frame, its processing step is as follows:
Hanger on a, workpiece: metal spectacle frame is fixed on the fixture of energising;
B, ultrasonic wave paraffin removal: remove the buffing wax on metal spectacle frame;
C, ultrasonic oil removal and electrolytic degreasing: remove the organic oils on frame;
D, electrolytic activation: the metal on metal spectacle frame surface is softened;
E, nickel preplating: carry out nickel plating on the surface of metal spectacle frame;
F, copper pre-plating: on nickel layer, carry out copper facing;
G, bright sour copper and bright nickel: light optimization is carried out to coating surface;
H, eleetrotinplate Cobalt Alloy Plating liquid: by the outside surface of tin-cobalt alloy electroplate liquid plating at metal spectacle frame;
I, ultrasonic pure water clean: cleaned by the metal spectacle frame ultrasonic pure water after passivation;
J, electrophoresis blooming solidifying: at the outside surface plating last layer colloidal film of metal spectacle frame, complete rear one-tenth is cured;
K, packaging warehouse-in.
The present invention is compared to the prior art advantageously: have environmental protection, bright in colour pure white and to the effect of skin without sensitivity with the present invention's made electroplate liquid of filling a prescription; And it electroplates the feature after on metal spectacle frame with hard wear resistant and erosion resistance.
Embodiment
The following stated is only preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment 1, a kind of Pd-Co alloy electroplate liquid, its formula calculates with mass fraction and is made up of following component: sodium acetate 60 parts; Basic metal complexing agent 20 parts; Dipotassium hydrogen phosphate 20 parts; Ammonium chloride palladium 2 parts; Cobalt chloride 10 parts; Brightening agent 0.05 part; In the preparation, first by cobalt chloride and sodium acetate hybrid reaction; Mixed in a kettle. by remaining raw material, the temperature of reactor controls at 25 DEG C again; Regulate pH value, make its pH value be 8; Carry out stirring and filter and can obtain corresponding electroplate liquid.
A technique for Pd-Co alloy electroplate liquid plating frame, its processing step is as follows:
Hanger on a, workpiece: metal spectacle frame is fixed on the fixture of energising, metal spectacle frame should simply clean before upper fixture, so that the eliminating impurities of some easy cleanings;
B, ultrasonic wave paraffin removal: ultrasonic wave paraffin removal utilizes high temperature and hyperacoustic power of shaking to dispose metal spectacle frame left buffing wax when metal machinery polishing;
C, ultrasonic oil removal and electrolytic degreasing: ultrasonic oil removal is organic for some on the metal spectacle frame after step b paraffin removal oils, utilize high temperature and hyperacoustic power of shaking to be cleaned up;
D, electrolytic activation: the metal on metal spectacle frame surface is softened; Electrolytic activation is that the hardness on metal spectacle frame surface is softened under the condition of acidity, and metal can be effectively combined in electrochemical redox process with metal;
E, nickel preplating: carry out nickel plating on the surface of metal spectacle frame; Nickel preplating can allow metal spectacle frame carry out bottoming follow-up with during other Metal plating, makes the bonding force of follow-up plating better;
F, copper pre-plating: on nickel layer, carry out copper facing; Copper pre-plating is on nickel preplating basis, carry out overlay coating bottoming effect, and it can be filled and led up incomplete for surperficial small part place;
G, bright sour copper and bright nickel: light optimization is carried out to coating surface; The sour copper of light is that on above-mentioned basis, carry out the light of outward appearance to copper plate perfect, and bright nickel on above-mentioned basis, carries out electroplating bright to deal with problems arising from an accident the performance of reinforcings, guarantee coating antioxidant and coating;
H, palladium plating Cobalt Alloy Plating liquid: by the outside surface of tin-cobalt alloy electroplate liquid plating at metal spectacle frame; By electroplating device, tin-cobalt alloy plating solution is electroplated onto on metal spectacle frame, the outside surface that tin-cobalt alloy coating can beautify metal spectacle frame makes it have preferably performance;
I, ultrasonic pure water clean: cleaned by the metal spectacle frame ultrasonic pure water after passivation; Ultrasonic pure water cleaning is mainly after metal spectacle frame carries out electroplating processes, and the one before electrophoresis cleans, and that guarantees when electrophoresis outward appearance beautifies performance;
J, electrophoresis blooming solidifying: at the outside surface plating last layer colloidal film of metal spectacle frame, this colloidal film can play better protecting effect, prevents from being oxidized by outside air; Complete rear one-tenth is cured;
K, packaging warehouse-in: carry out after solidification being packaged into storehouse, in order to follow-up use.
Embodiment 2, the processing step of embodiment 2 is roughly the same with embodiment 1, and its difference is that its formula calculates with mass fraction and is made up of following: sodium malonate 70 parts; Basic metal complexing agent 30 parts; Dipotassium hydrogen phosphate 30 parts; Ammonium chloride palladium 3.5 parts; Brightening agent 0.1 part; In the preparation, first by cobalt chloride and sodium malonate hybrid reaction; Mixed in a kettle. by remaining raw material, the temperature of reactor controls at 35 DEG C again; Regulate pH value, make its pH value be 9; Carry out stirring and filter and can obtain corresponding electroplate liquid; It can reach the effect identical with embodiment 1 equally.
Embodiment 3, the processing step of embodiment 3 is roughly the same with embodiment 1, and its difference is that its formula calculates with mass fraction and is made up of following: 80 parts, pentanedioic acid potassium; Basic metal complexing agent 40 parts; Dipotassium hydrogen phosphate 40 parts; Ammonium chloride palladium 5 parts; Cobalt chloride 30 parts; Brightening agent 0.15 part; In the preparation, first by cobalt chloride and pentanedioic acid potassium hybrid reaction; Mixed in a kettle. by remaining raw material, the temperature of reactor controls at 45 DEG C again; Regulate pH value, make its pH value be 9.5; Carry out stirring and filter and can obtain corresponding electroplate liquid; It can reach the effect identical with embodiment 1 equally.
Claims (4)
1. a Pd-Co alloy electroplate liquid, is characterized in that: its formula calculates with mass fraction and is made up of following component: carboxylic acid compound 60 ~ 80 parts; Basic metal complexing agent 20 ~ 40 parts; Dipotassium hydrogen phosphate 20 ~ 40 parts; Ammonium chloride palladium 2 ~ 5 parts; Cobalt chloride 10 ~ 30 parts; Brightening agent 0.05 ~ 0.15 part; In the preparation, first by cobalt chloride and carboxylic acid compound hybrid reaction; Mixed in a kettle. by remaining raw material, the temperature of reactor controls at 25 ~ 45 DEG C again; Regulate pH value, make its pH value between 8 ~ 9.5; Carry out stirring and filter and can obtain corresponding electroplate liquid.
2. Pd-Co alloy electroplate liquid according to claim 1, is characterized in that: described carboxylic acid compound 70 parts; Basic metal complexing agent 30 parts; Dipotassium hydrogen phosphate 30 parts; Ammonium chloride palladium 3.5 parts; Brightening agent 0.1 part.
3. Pd-Co alloy electroplate liquid according to claim 1 and 2, is characterized in that: described carboxylic acid compound is sodium acetate, sodium malonate and pentanedioic acid potassium.
4., by the technique of Pd-Co alloy electroplate liquid plating frame described in claims 1 to 3, it is characterized in that: its processing step is as follows:
Hanger on a, workpiece: metal spectacle frame is fixed on the fixture of energising;
B, ultrasonic wave paraffin removal: remove the buffing wax on metal spectacle frame;
C, ultrasonic oil removal and electrolytic degreasing: remove the organic oils on frame;
D, electrolytic activation: the metal on metal spectacle frame surface is softened;
E, nickel preplating: carry out nickel plating on the surface of metal spectacle frame;
F, copper pre-plating: on nickel layer, carry out copper facing;
G, bright sour copper and bright nickel: light optimization is carried out to coating surface;
H, eleetrotinplate Cobalt Alloy Plating liquid: by the outside surface of tin-cobalt alloy electroplate liquid plating at metal spectacle frame;
I, ultrasonic pure water clean: cleaned by the metal spectacle frame ultrasonic pure water after passivation;
J, electrophoresis blooming solidifying: at the outside surface plating last layer colloidal film of metal spectacle frame, complete rear one-tenth is cured;
K, packaging warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104626.6A CN105543913A (en) | 2016-02-25 | 2016-02-25 | Palladium-cobalt alloy electroplating liquid and technology of electroplating spectacle frame with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104626.6A CN105543913A (en) | 2016-02-25 | 2016-02-25 | Palladium-cobalt alloy electroplating liquid and technology of electroplating spectacle frame with same |
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| CN105543913A true CN105543913A (en) | 2016-05-04 |
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| CN201610104626.6A Pending CN105543913A (en) | 2016-02-25 | 2016-02-25 | Palladium-cobalt alloy electroplating liquid and technology of electroplating spectacle frame with same |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4242180A (en) * | 1976-12-21 | 1980-12-30 | Siemens Aktiengesellschaft | Ammonia free palladium electroplating bath using aminoacetic acid |
| CN1420947A (en) * | 1999-10-27 | 2003-05-28 | 小岛化学药品株式会社 | Palladium plating solution |
| CN101348928A (en) * | 2007-07-20 | 2009-01-21 | 罗门哈斯电子材料有限公司 | High speed method for plating palladium and palladium alloys |
| CN101652818A (en) * | 2007-04-03 | 2010-02-17 | 古河电气工业株式会社 | Electric contact material, method for manufacturing the electric contact material, and electric contact |
| CN102051647A (en) * | 2010-12-29 | 2011-05-11 | 东莞市泰赛特汽车用品科技有限公司 | Cyanide-free nickel-free water plating process for titanium and titanium alloy |
| CN104611745A (en) * | 2015-01-25 | 2015-05-13 | 北京化工大学 | Electroplating process of high-abrasion resistance corrosion-resistance Pd-Co gradient alloy for stainless steel surface |
-
2016
- 2016-02-25 CN CN201610104626.6A patent/CN105543913A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4242180A (en) * | 1976-12-21 | 1980-12-30 | Siemens Aktiengesellschaft | Ammonia free palladium electroplating bath using aminoacetic acid |
| CN1420947A (en) * | 1999-10-27 | 2003-05-28 | 小岛化学药品株式会社 | Palladium plating solution |
| CN101652818A (en) * | 2007-04-03 | 2010-02-17 | 古河电气工业株式会社 | Electric contact material, method for manufacturing the electric contact material, and electric contact |
| CN101348928A (en) * | 2007-07-20 | 2009-01-21 | 罗门哈斯电子材料有限公司 | High speed method for plating palladium and palladium alloys |
| CN102051647A (en) * | 2010-12-29 | 2011-05-11 | 东莞市泰赛特汽车用品科技有限公司 | Cyanide-free nickel-free water plating process for titanium and titanium alloy |
| CN104611745A (en) * | 2015-01-25 | 2015-05-13 | 北京化工大学 | Electroplating process of high-abrasion resistance corrosion-resistance Pd-Co gradient alloy for stainless steel surface |
Non-Patent Citations (1)
| Title |
|---|
| 沈宁一 等: "眼镜架电镀白色光亮性钯镍合金", 《电镀与环保》 * |
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Inventor after: Huang Youquan Inventor before: Li Xiaosheng |
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Application publication date: 20160504 |