CN110154608A - A kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technology - Google Patents
A kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technology Download PDFInfo
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- CN110154608A CN110154608A CN201910468243.0A CN201910468243A CN110154608A CN 110154608 A CN110154608 A CN 110154608A CN 201910468243 A CN201910468243 A CN 201910468243A CN 110154608 A CN110154608 A CN 110154608A
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- Prior art keywords
- gold stamping
- screen
- handicraft
- electroplating technology
- temperature
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/17—Dry transfer
- B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
- B44C1/1729—Hot stamping techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F9/00—Designs imitating natural patterns
- B44F9/10—Designs imitating natural patterns of metallic or oxidised metallic surfaces
-
- 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
- C25D3/58—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of copper
-
- 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
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
- C25D9/08—Electrolytic coating other than with metals with inorganic materials by cathodic processes
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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)
- Inorganic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technologies, the manufacturing process steps are as follows: pretreatment → coating → drying → gold stamping processing → washing → electrolytic passivation → ultrasonic water is cleaned → cuts water → cleaning and drying, the pretreating process is to impregnate workpiece in the alkaline solution of pH value 12-13, remove grease stain, then it places into pH value 2-3 acid solution, carry out immersion table tune, in 4 acid solution of pH value, carry out immersion passivation, it is rinsed in the neutral clear water of pH value 7, it drains, mechanical buffing is carried out again, manual grinding Shape correction, the coating process is that workpiece surface is carried out spraying acrylic resin paint, it is sprayed using atomizing applicator.Solve that traditional handicraft electroplated layer adhesive force after the completion of producing to craftwork is poor through the invention, using place after a period of time easily occur falling off influence beautiful phenomenon, influence the usage experience of user the problem of.
Description
Technical field
The present invention relates to gold stamping electroplating technology, specially a kind of gold stamping silk-screen of handicraft surface and imitative golden product surface
Electroplating technology.
Background technique
Imitation gold plating is a kind of decorative alloy plating technology, the decorations such as jewellery, craftwork, household appliance, lamps and lanterns and clock and watch
One layer of decorative imitating gold plate of plating just becomes bright and glittering on product surface, can reach and proof gold and its Deposit appearance color phase
Same effect, therefore imitation gold deposit is liked by people.Imitation gold plating has cyanide plating and cyanideless electro-plating two types.
With the progress in epoch and the development of science and technology, people are higher and higher to the esthetic requirement of daily necessity, daily necessity
And craftwork needs to be beautified by series of process such as gold stamping plating after the completion of production, traditional handicraft is to craftwork
Electroplated layer adhesive force is poor after the completion of production, influences beautiful phenomenon using placing after a period of time easily to occur falling off, influences to make
The usage experience of user, thus it is proposed that a kind of gold stamping electroplating technology is to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technologies, have
The strong advantage of coating adhesion, the product for solving the electroplating technology production on existing market do not have the strong advantage of coating adhesion
The problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of gold stamping silk-screen of handicraft surface and imitative gold system
Product electroplating process for surface, the manufacturing process steps are as follows: pretreatment → coating → drying → gold stamping processing → washing → electrolysis
Water → cleaning → drying is cut in passivation → ultrasonic water is cleaned →.
Preferably, the pretreating process is to impregnate workpiece in the alkaline solution of pH value 12-13, removes grease stain, so
After place into pH value 2-3 acid solution, carry out immersion table tune, in 4 acid solution of pH value, immersion passivation carried out, in pH value 7
Neutral clear water is rinsed, drains, then carries out mechanical buffing, manual grinding Shape correction.
Preferably, the coating process is that workpiece surface is carried out spraying acrylic resin paint, using automatic spraying
Machine is sprayed, painting environments requirement: 15 °C of temperature -- and 25 °C, humidity 45%--70%, 0.3-0.45m/s of wind speed, compressed air
0.6MPa。
Preferably, the drying process heats product using Electric heat oven, and heating temperature is 110 °C -- and 130 °C,
Heating time is not less than 5min.
Preferably, on metal surface film of the gold stamping treatment process using electrochemical aluminum material covering converted products, lead to
Cross electrification heating, mechanical pressurization transfer method it is ironed, 120 °C -160 °C of electrochemical heat transfer temperature, mechanical pressurization shift pressure 10Kg/
cm3.2-3.6s。
Preferably, the washing process is rinsed workpiece surface using 40 °C -60 °C of temperature of neutral water.
Preferably, the electrolysis process is by workpiece immersion treatment in the electrolyte that temperature is 59 °C -63 °C, voltage is 2V
Middle processing 15s cleans 1.5-2min with distilled water later at normal temperature, completes imitation gold plating, and plating solution formula is；Bronze salt 70
~90 ° of g/L, 1~2 ° of ml/L of ammonium hydroxide, DK0.2~0.9 ° A/dm2, plating solution composition: Cu ° of 15~18 ° of g/L, Zn6~8 ° g/L are swum
From NaCN8~10 ° g/L, the passivation process is passivated processing 10- for passivating solution is immersed under the workpiece room temperature after plating
15min, the formula of passivating solution are that magnetic powder and grounds travel mix, and when Passivation Treatment, plating piece makees cathode, it should be noted that keeps anode
Surface cleaning it is outer after washing → pickling → washing is clean should to propose slot, then put back to coating bath if anode surface generates black film
It is interior.
Preferably, the ultrasonic wave water washing time is no less than 5min, the frequency conversion frequency of variable frequency pump in ultrasonic wave water washing equipment
Rate is 1-400Hz.
Preferably, described to cut hydraulic art using immersion way under room temperature to use, it is necessary to assure metal surface uniform vertical
Immersion is cut in aqua, slight oscillatory, and liquid level is slowly vertically risen from after 200s~300s.
Preferably, the cleaning and stoving process are rinsed workpiece surface using 40 °C -60 °C of temperature of neutral water,
Heating water removal is carried out to product using Electric heat oven after the completion of cleaning, heating temperature is 40 °C -- 50 °C, heating time is not less than
3min。
Compared with prior art, beneficial effects of the present invention are as follows:
By repeatedly washing and cutting hydraulic art, workpiece can be made to keep the cleaning on surface before every procedure produces, effectively kept away
Exempt from the phenomenon that the processing effect that surface influences process there are greasy dirt in process causes later period using effect bad, improves
Product stability and processing effect when work pieces process；
By the clearly operation of passivation technology, can effectively avoid coating surface from directly contacting with air causes use for a long time to go out
The oxidation that now falls off influences to improve the service life and beauty of product using beautiful phenomenon；
It is made clear by process time, temperature and formula, keeps entire process flow controllability high, improve to imitation gold plating
Simulation quality degree of control, can guarantee the stability of product tint, improve product quality.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Used material installation of the invention is universal standard part or component as known to those skilled in the art, knot
Structure and principle are all that this technology personnel can be learnt by technical manual or be known by routine experiment method.
A kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technology, manufacturing process steps are as follows: pretreatment
→ coating → drying → gold stamping processing → washing → electrolytic passivation → ultrasonic water is cleaned → cuts water → cleaning and drying.
Pretreating process is to impregnate workpiece in the alkaline solution of pH value 12-13, removes grease stain, then places into pH value
In 2-3 acid solution, immersion table tune is carried out, in 4 acid solution of pH value, carries out immersion passivation, is carried out in the neutral clear water of pH value 7
It rinses, drain, then carry out mechanical buffing, manual grinding Shape correction.
Coating process is that workpiece surface is carried out spraying acrylic resin paint, is sprayed using atomizing applicator,
Painting environments requirement: 15 °C of temperature -- 25 °C, humidity 45%--70%, 0.3-0.45m/s of wind speed, compressed air 0.6MPa.
Drying process heats product using Electric heat oven, and heating temperature is 110 °C -- and 130 °C, heating time is not
Lower than 5min.
On metal surface film of the gold stamping treatment process using electrochemical aluminum material covering converted products, heated by electrification,
Mechanical pressurization transfer method is ironed, 120 °C -160 °C of electrochemical heat transfer temperature, mechanical pressurization shift pressure 10Kg/cm3.2-3.6s.
Washing process is rinsed workpiece surface using 40 °C -60 °C of temperature of neutral water.
Electrolysis process is that workpiece immersion treatment is handled 15s in the electrolyte that temperature is 59 °C -63 °C, voltage is 2V,
1.5-2min is cleaned at normal temperature with distilled water later, completes imitation gold plating, and plating solution formula is；70~90 ° of g/L of bronze salt,
Ammonium hydroxide 1~2 ° of ml/L, DK0.2~0.9 ° A/dm2, plating solution composition: Cu ° of 15~18 ° of g/L, Zn6~8 ° g/L, the NaCN8 that dissociates~
10 ° of g/L, the passivation process will immerse passivating solution and be passivated processing 10-15min under the workpiece room temperature after plating, blunt
The formula for changing liquid is that magnetic powder and grounds travel mix, and when Passivation Treatment, plating piece makees cathode, it should be noted that keeps anode surface clear
It is clean, if anode surface generates black film, it is outer after washing → pickling → washing is clean should to propose slot, then put back in coating bath.
The ultrasonic wave water washing time is no less than 5min, and the conversion frequencies of variable frequency pump are 1-400Hz in ultrasonic wave water washing equipment.
Hydraulic art is cut using immersion way under room temperature to cut aqua using the immersion of, it is necessary to assure metal surface uniform vertical
It is interior, slight oscillatory, slowly vertical emersion liquid level after 200s~300s.
Cleaning and stoving process are rinsed workpiece surface using 40 °C -60 °C of temperature of neutral water, after the completion of cleaning
Heating water removal is carried out to product using Electric heat oven, heating temperature is 40 °C -- 50 °C, heating time is not less than 3min.
In use, workpiece can be made to keep surface before every procedure produces by repeatedly washing and cutting hydraulic art
Cleaning effectively avoids the processing effect that surface influences process there are greasy dirt in process from causing later period using effect bad
Phenomenon improves product stability and processing effect when work pieces process, by the clearly operation of passivation technology, can effectively keep away
Exempt from coating surface and directly contact with air to cause to influence using the oxidation that occurs falling off for a long time to improve production using beautiful phenomenon
The service life and beauty of product, are made clear by process time, temperature and formula, keep entire process flow controllability high,
The degree of control to the simulation quality of imitation gold plating is improved, can guarantee the stability of product tint, improves product quality.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technology, the manufacturing process steps are as follows: pre- place
Reason → coating → drying → gold stamping processing → washing → electrolytic passivation → ultrasonic water is cleaned → cuts water → cleaning and drying.
2. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
Be: the pretreating process is to impregnate workpiece in the alkaline solution of pH value 12-13, removes grease stain, then places into PH
In value 2-3 acid solution, carry out immersion table tune, in 4 acid solution of pH value, carry out immersion passivation, the neutral clear water of pH value 7 into
Row is rinsed, is drained, then carries out mechanical buffing, manual grinding Shape correction.
3. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
Be: the coating process is that workpiece surface is carried out spraying acrylic resin paint, is sprayed using atomizing applicator,
Painting environments requirement: 15 °C of temperature -- 25 °C, humidity 45%--70%, 0.3-0.45m/s of wind speed, compressed air 0.6MPa.
4. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
Be: the drying process heats product using Electric heat oven, and heating temperature is 110 °C -- and 130 °C, heating time is not
Lower than 5min.
5. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
It is: on metal surface film of the gold stamping treatment process using electrochemical aluminum material covering converted products, heated by electrification,
Mechanical pressurization transfer method is ironed, 120 °C -160 °C of electrochemical heat transfer temperature, mechanical pressurization shift pressure 10Kg/cm3.2-3.6s.
6. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
Be: the washing process is rinsed workpiece surface using 40 °C -60 °C of temperature of neutral water.
7. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
Be: the electrolysis process is that workpiece immersion treatment is handled 15s in the electrolyte that temperature is 59 °C -63 °C, voltage is 2V,
1.5-2min is cleaned at normal temperature with distilled water later, completes imitation gold plating, and plating solution formula is；70~90 ° of g/L of bronze salt,
Ammonium hydroxide 1~2 ° of ml/L, DK0.2~0.9 ° A/dm2, plating solution composition: Cu ° of 15~18 ° of g/L, Zn6~8 ° g/L, the NaCN8 that dissociates~
10 ° of g/L, the passivation process will immerse passivating solution and be passivated processing 10-15min under the workpiece room temperature after plating, blunt
The formula for changing liquid is that magnetic powder and grounds travel mix, and when Passivation Treatment, plating piece makees cathode, it should be noted that keeps anode surface clear
It is clean, if anode surface generates black film, it is outer after washing → pickling → washing is clean should to propose slot, then put back in coating bath.
8. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
Be: the ultrasonic wave water washing time is no less than 5min, and the conversion frequencies of variable frequency pump are 1- in ultrasonic wave water washing equipment
400Hz。
9. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
It is: described to cut hydraulic art using immersion way under room temperature to cut aqua using the immersion of, it is necessary to assure metal surface uniform vertical
It is interior, slight oscillatory, slowly vertical emersion liquid level after 200s~300s.
10. the gold stamping silk-screen of a kind of handicraft surface according to claim 1 and imitative golden product surface electroplating technology, feature
Be: the cleaning and stoving process are rinsed workpiece surface using 40 °C -60 °C of temperature of neutral water, after the completion of cleaning
Heating water removal is carried out to product using Electric heat oven, heating temperature is 40 °C -- 50 °C, heating time is not less than 3min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468243.0A CN110154608A (en) | 2019-05-31 | 2019-05-31 | A kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910468243.0A CN110154608A (en) | 2019-05-31 | 2019-05-31 | A kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technology |
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| CN110154608A true CN110154608A (en) | 2019-08-23 |
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| CN201910468243.0A Pending CN110154608A (en) | 2019-05-31 | 2019-05-31 | A kind of gold stamping silk-screen of handicraft surface and imitative golden product surface electroplating technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808056A (en) * | 2022-04-29 | 2022-07-29 | 潍坊裕元电子有限公司 | Local gold plating production process for product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611638A (en) * | 2003-10-28 | 2005-05-04 | 尚志精密化学股份有限公司 | Electro-plating coating and japanning method |
| CN1900379A (en) * | 2006-07-08 | 2007-01-24 | 桂林工学院 | Supersonic auxiliary gold simulating electroplating process |
| US20120241082A1 (en) * | 2011-03-22 | 2012-09-27 | Industrial Technology Research Institute | Fabricating method of flexible circuit board |
| CN102963070A (en) * | 2012-11-21 | 2013-03-13 | 深圳光启创新技术有限公司 | Composite board, metamaterial and preparation methods |
| CN109177560A (en) * | 2018-09-18 | 2019-01-11 | 深圳华美板材有限公司 | A kind of thermal transfer Coil Coating Products and its manufacturing process |
-
2019
- 2019-05-31 CN CN201910468243.0A patent/CN110154608A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611638A (en) * | 2003-10-28 | 2005-05-04 | 尚志精密化学股份有限公司 | Electro-plating coating and japanning method |
| CN1900379A (en) * | 2006-07-08 | 2007-01-24 | 桂林工学院 | Supersonic auxiliary gold simulating electroplating process |
| US20120241082A1 (en) * | 2011-03-22 | 2012-09-27 | Industrial Technology Research Institute | Fabricating method of flexible circuit board |
| CN102963070A (en) * | 2012-11-21 | 2013-03-13 | 深圳光启创新技术有限公司 | Composite board, metamaterial and preparation methods |
| CN109177560A (en) * | 2018-09-18 | 2019-01-11 | 深圳华美板材有限公司 | A kind of thermal transfer Coil Coating Products and its manufacturing process |
Non-Patent Citations (1)
| Title |
|---|
| LUHJ0792: "电镀工艺", 《仿金电镀工艺》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808056A (en) * | 2022-04-29 | 2022-07-29 | 潍坊裕元电子有限公司 | Local gold plating production process for product |
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Application publication date: 20190823 |