CN106702448A - Pretreatment method of nickel material electrogilding - Google Patents
Pretreatment method of nickel material electrogilding Download PDFInfo
- Publication number
- CN106702448A CN106702448A CN201710157741.4A CN201710157741A CN106702448A CN 106702448 A CN106702448 A CN 106702448A CN 201710157741 A CN201710157741 A CN 201710157741A CN 106702448 A CN106702448 A CN 106702448A
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- Prior art keywords
- nickel material
- pure water
- gold
- nickel
- treating method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/38—Pretreatment of metallic surfaces to be electroplated of refractory metals or nickel
- C25D5/40—Nickel; Chromium
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/30—Acidic compositions for etching other metallic material
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
Abstract
The invention provides a pretreatment method of nickel material electrogilding. The pretreatment method comprises the following steps: ultrasonic dust removal is carried out; physical polishing is carried out and then tap water washing is carried out; electrolysis is carried out and then pure water washing is carried out; activation is carried out and then the pure water washing is carried out; and micro corrosion is carried out and then the pure water washing is carried out, and a nickel material after cleaning is obtained. With the adoption of the pretreatment method, dust and dirt on the surface of the nickel material can be cleaned thoroughly, no nickel material is damaged, a rough fogging surface can be formed, and an electroplated gold layer is good in uniformity and consistent in color and luster.
Description
Technical field
The invention belongs to nickel material pre-electroplating treatment technical field, and in particular to a kind of pre-treating method of nickel material plating gold.
Background technology
FFC (Flexible Flat Cable, flexible flat cable) is a kind of by high-tech automation equipment production line
The new types of data cable of pressing, also referred to as soft arranging wire, with softness, thickness of thin, easily convenient disassembly, solution electromagnetic shielding etc.
Advantage.FFC is nearly ubiquitous in Modern appliances, be suitable between moving parts and mainboard, pcb board between pcb board, it is small
It is used as data transmission cable in type electric equipment.The structure of FFC includes copper material or nickel material, in order to prevent nickel material from getting rusty
With its corrosion-resistant, anti-aging performance of raising, it usually needs carry out electrolytic gold plating on nickel material surface, and needed to nickel before gold-plated
Material carries out pre-electroplating treatment, removes dust, the greasy dirt on nickel material surface etc..Conventional electro-plating pre-treatment method is directly to use running water
Or pure water cleans nickel material, but the processing method cannot completely clean totally nickel material surface, so that occurring during FFC uses
The phenomenon that Gold plated Layer comes off, so as to cause product service life to shorten；Before Xian Yeyou manufacturers are carried out using methods such as polishings
Treatment, but the granule foreign on nickel material surface can scratch nickel material surface during polishing, cause later stage plating layer gold uneven, influence
The performance of FFC.
Processing method (Authorization Notice No. be CN 103695976B) before a kind of copper products electronickelling of patent of invention include with
Lower step：The copper products for preparing electronickelling are first carried out into first time polishing, is then washed；Second polishing is carried out again, with
After carry out three road washings；Then pickling is carried out, the pickle that the pickling is used is for sulfuric acid that volume fraction is 30%；Again finally
Activated i.e. completion treatment, the activating solution that uses of activating is for sulfuric acid that volume fraction is 3~5%.The invention is only to copper
Product surface oxide and greasy dirt are processed, and do not corrode layers of copper, greatly protect the integrality of product, but the invention exists
Without any cleaning measure before polishing, the granule foreign on copper surface can damage layers of copper surface in polishing, and it is equal that the influence later stage electroplates
Even property.
Therefore it is badly in need of a kind of dust and dirt that can thoroughly clean nickel material surface, nickel material is not damaged and can be formed coarse
Cloudy surface, the layer gold uniformity of plating is good, the pre-treating method of the consistent nickel material plating gold of color and luster.
The content of the invention
The purpose of the present invention is directed to the deficiency of the existing golden pre-treating method of nickel material plating, there is provided one kind can be cleaned thoroughly
The dust and dirt on nickel material surface, nickel material is not damaged and coarse cloudy surface can be formed, and the layer gold uniformity of plating is good, and color and luster is consistent
Nickel material plating gold pre-treating method.
The invention provides following technical scheme：
A kind of pre-treating method of nickel material plating gold, comprises the following steps：
S1：Ultrasonic dedusting, nickel material is placed in running water, to be cleaned by ultrasonic, removes the adhesive force such as the dust on nickel material surface
Small granule foreign；
S2：Physics is polished, and uses polishing rod to be polished nickel material and round brush in the way of physics is polished, during polishing not
Discontinuously plus running water is rinsed, the gluey foreign matter on nickel material surface is removed, while eliminating the aberration on nickel material surface；
S3：Electrolysis, the nickel material after physics is polished is placed in alkaline electrolyte and soaks, and removes the greasy dirt on nickel material surface, so
Pure water rinsing is used afterwards, and the composition of the alkaline electrolyte includes：The pure water of 12-17 parts of degreasing agent and 83-88 part；
S4：Activation, the nickel material after step S3 treatment is placed in activating solution and is soaked, and energization is activated, and thoroughly removes nickel
The dirty of material surface, foreign matter and oxide layer, then with pure water rinsing, the activating solution is that mass fraction is the acid of 20%-30%
Salting liquid；
S5：Microetch, the nickel material after activation process is soaked in micro-corrosion liquid, slight erosion is carried out to nickel material surface, by table
Face is processed as coarse cloudy surface, is then cleaned with pure water again, and the composition of the micro-corrosion liquid includes：18-25 parts of sulfuric acid, 13-18 parts
Sodium peroxydisulfate and 40-50 parts of pure water.
Preferably, the temperature of running water is 18-25 DEG C in the step S1, is cleaned by ultrasonic the time for 2-3 minutes, and ultrasound is clear
Washing can remove the small granule foreign of the adhesive force such as the dust on nickel material surface, and particulate matter damages nickel material table in preventing polishing process
Face.
Preferably, polishing rod surface is provided with the soft brush of dentation in the step S2, can carry out round brush to nickel material, the polishing rod energy
Enough while nickel material surface glue foreign matter is removed, protection nickel material is injury-free.
Preferably, the soaking temperature of electrolyte is room temperature in the step S3, and soak time is 3-6 seconds, electrolysis immersion
Temperature and time can ensure the thorough removing of greasy dirt.
Preferably, in the step S4 activate process time be 1-3 minutes, through the activation process of the time range after,
The dirty of nickel material surface, foreign matter and oxide layer can be removed thoroughly.
Preferably, the time of microetch treatment is 2-5 seconds in the step S5, and the microetch treatment in the time range can be right
Nickel material surface carries out slight erosion, makes its surface that coarse cloudy surface is presented, and mist gold face is formed after plating, and ensure not excessive corrosion nickel
Material.
Preferably, the pure water used in step S3, S4 and S5 is made using professional water purification machine, and the pure water is led
Electric rate is less than 50 μ S/cm, and pure water can protect nickel material surface not to be corroded and destroy.
The beneficial effects of the invention are as follows：
(1) present invention carries out the plating gold pre-treatment of nickel material, energy using ultrasonic dedusting, physics polishing, electrolysis, activation procedure
The dust and dirt on enough thoroughly cleaning nickel material surfaces, cleaning effect are good, are conducive to the stability of gold plate.
(2) present invention is removed the small granule foreign of the adhesive force such as the dust on nickel material surface using ultrasonic dedusting, Neng Goufang
Only particulate matter damages nickel material surface in later stage physics polishing process, it is ensured that the uniformity and color consistency of plating layer gold.
(3) present invention carries out microetch operation after nickel material surface cleaning is thorough, can carry out slight erosion to nickel material surface,
Make its surface that coarse cloudy surface is presented, mist gold face is formed after plating, be conducive to the raising of FFC properties of product, the operation simultaneously can be with
Secondary nickel material.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with reality of the invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is process chart of the invention.
Specific embodiment
Embodiment 1
As shown in figure 1, a kind of pre-treating method of nickel material plating gold, comprises the following steps：
S1：Ultrasonic dedusting, nickel material is placed in running water, to be cleaned by ultrasonic, removes the adhesive force such as the dust on nickel material surface
The temperature of small granule foreign, wherein running water is 20 DEG C, is cleaned by ultrasonic the time for 2 minutes；
S2：Physics is polished, and physics polishing is carried out using polishing rod, and polishing rod surface is provided with the soft brush of dentation, with the polishing rod
Nickel material is polished and round brush, add running water to be rinsed during polishing incessantly, the gluey foreign matter on nickel material surface is clear
Remove, while eliminating the aberration on nickel material surface；
S3：Electrolysis, the nickel material after physics is polished is placed in alkaline electrolyte and soaks, and removes the greasy dirt on nickel material surface, leaching
Bubble temperature is room temperature, and soak time is 3 seconds, and then using pure water rinsing, the composition of the alkaline electrolyte includes：12 parts de-
Fat agent and 88 parts of pure water；
S4：Activation, the nickel material after step S3 treatment is placed in activating solution and is soaked, and be powered activation 1 minute, thoroughly removes nickel
The dirty of material surface, foreign matter and oxide layer, then with pure water rinsing, the activating solution is molten for the hydrochlorate that mass fraction is 20%
Liquid；
S5：Microetch, micro-corrosion liquid is soaked in 2 seconds by the nickel material after activation process, and slight erosion is carried out to nickel material surface, will
It is coarse cloudy surface to be surface-treated, and is then cleaned with pure water again, and the composition of the micro-corrosion liquid includes：18 parts of sulfuric acid, 13 parts of mistake
Sodium sulphate and 40 parts of pure water.
In the present embodiment, pure water used in step S3, S4 and S5 is made using professional water purification machine, and the pure water is led
Electric rate is less than 50 μ S/cm, and pure water can protect nickel material surface not to be corroded and destroy.
Nickel material after being processed through the present embodiment, thoroughly cleaning is clean for the dust and dirt on surface, and there is not damage on nickel material surface,
And in uniform coarse cloudy surface, layer gold uniformity is good after plating gold, and color and luster is consistent.
Embodiment 2
As shown in figure 1, a kind of pre-treating method of nickel material plating gold, comprises the following steps：
S1：Ultrasonic dedusting, nickel material is placed in running water, to be cleaned by ultrasonic, removes the adhesive force such as the dust on nickel material surface
The temperature of small granule foreign, wherein running water is 18 DEG C, is cleaned by ultrasonic the time for 2.5 minutes；
S2：Physics is polished, and physics polishing is carried out using polishing rod, and polishing rod surface is provided with the soft brush of dentation, with the polishing rod
Nickel material is polished and round brush, add running water to be rinsed during polishing incessantly, the gluey foreign matter on nickel material surface is clear
Remove, while eliminating the aberration on nickel material surface；
S3：Electrolysis, the nickel material after physics is polished is placed in alkaline electrolyte and soaks, and removes the greasy dirt on nickel material surface, leaching
Bubble temperature is room temperature, and soak time is 4 seconds, and then using pure water rinsing, the composition of the alkaline electrolyte includes：15 parts de-
Fat agent and 85 parts of pure water；
S4：Activation, the nickel material after step S3 treatment is placed in activating solution and is soaked, and be powered activation 2 minutes, thoroughly removes nickel
The dirty of material surface, foreign matter and oxide layer, then with pure water rinsing, the activating solution is molten for the hydrochlorate that mass fraction is 25%
Liquid；
S5：Microetch, micro-corrosion liquid is soaked in 3 seconds by the nickel material after activation process, and slight erosion is carried out to nickel material surface, will
It is coarse cloudy surface to be surface-treated, and is then cleaned with pure water again, and the composition of the micro-corrosion liquid includes：20 parts of sulfuric acid, 15 parts of mistake
Sodium sulphate and 45 parts of pure water.
In the present embodiment, pure water used in step S3, S4 and S5 is made using professional water purification machine, and the pure water is led
Electric rate is less than 50 μ S/cm, and pure water can protect nickel material surface not to be corroded and destroy.
Nickel material after being processed through the present embodiment, thoroughly cleaning is clean for the dust and dirt on surface, and there is not damage on nickel material surface,
And in uniform coarse cloudy surface, layer gold uniformity is good after plating gold, and color and luster is consistent.
Embodiment 3
As shown in figure 1, a kind of pre-treating method of nickel material plating gold, comprises the following steps：
S1：Ultrasonic dedusting, nickel material is placed in running water, to be cleaned by ultrasonic, removes the adhesive force such as the dust on nickel material surface
The temperature of small granule foreign, wherein running water is 25 DEG C, is cleaned by ultrasonic the time for 3 minutes；
S2：Physics is polished, and physics polishing is carried out using polishing rod, and polishing rod surface is provided with the soft brush of dentation, with the polishing rod
Nickel material is polished and round brush, add running water to be rinsed during polishing incessantly, the gluey foreign matter on nickel material surface is clear
Remove, while eliminating the aberration on nickel material surface；
S3：Electrolysis, the nickel material after physics is polished is placed in alkaline electrolyte and soaks, and removes the greasy dirt on nickel material surface, leaching
Bubble temperature is room temperature, and soak time is 6 seconds, and then using pure water rinsing, the composition of the alkaline electrolyte includes：17 parts de-
Fat agent and 83 parts of pure water；
S4：Activation, the nickel material after step S3 treatment is placed in activating solution and is soaked, and be powered activation 3 minutes, thoroughly removes nickel
The dirty of material surface, foreign matter and oxide layer, then with pure water rinsing, the activating solution is molten for the hydrochlorate that mass fraction is 30%
Liquid；
S5：Microetch, micro-corrosion liquid is soaked in 5 seconds by the nickel material after activation process, and slight erosion is carried out to nickel material surface, will
It is coarse cloudy surface to be surface-treated, and is then cleaned with pure water again, and the composition of the micro-corrosion liquid includes：25 parts of sulfuric acid, 18 parts of mistake
Sodium sulphate and 50 parts of pure water.
In the present embodiment, pure water used in step S3, S4 and S5 is made using professional water purification machine, and the pure water is led
Electric rate is less than 50 μ S/cm, and pure water can protect nickel material surface not to be corroded and destroy.
Nickel material after being processed through the present embodiment, thoroughly cleaning is clean for the dust and dirt on surface, and there is not damage on nickel material surface,
And in uniform coarse cloudy surface, layer gold uniformity is good after plating gold, and color and luster is consistent.
Comparative example
A kind of pre-treating method of nickel material plating gold, comprises the following steps：
S1：Physics is polished, and physics polishing is carried out using polishing rod, and polishing rod surface is provided with the soft brush of dentation, with the polishing rod
Nickel material is polished and round brush, add running water to be rinsed during polishing incessantly, the gluey foreign matter on nickel material surface is clear
Remove, while eliminating the aberration on nickel material surface；
S2：Electrolysis, the nickel material after physics is polished is placed in alkaline electrolyte and soaks, and removes the greasy dirt on nickel material surface, leaching
Bubble temperature is room temperature, and soak time is 3 seconds, and then using pure water rinsing, the composition of the alkaline electrolyte includes：10 parts de-
Fat agent and 90 parts of pure water；
S3：Activation, the nickel material after step S3 treatment is placed in activating solution and is soaked, and be powered activation 1 minute, thoroughly removes nickel
The dirty of material surface, foreign matter and oxide layer, then with pure water rinsing, the activating solution is molten for the hydrochlorate that mass fraction is 20%
Liquid；
S4：Microetch, micro-corrosion liquid is soaked in 2 seconds by the nickel material after activation process, and slight erosion is carried out to nickel material surface, will
It is coarse cloudy surface to be surface-treated, and is then cleaned with pure water again, and the composition of the micro-corrosion liquid includes：18 parts of sulfuric acid, 13 parts of mistake
Sodium sulphate and 40 parts of pure water.
Nickel material after being processed through this comparative example, the dust and dirt on surface are cleaned totally substantially, but still have a small amount of greasy dirt,
Additionally, because nickel material surface has particle dust to cause nickel material surface damage when physics is polished, it is impossible to form uniform coarse cloudy surface,
Layer gold lack of homogeneity after plating gold, and have aberration.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, although with reference to foregoing reality
Apply example to be described in detail the present invention, for a person skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic.It is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (7)
1. a kind of nickel material electroplates the pre-treating method of gold, it is characterised in that comprise the following steps：
S1：Ultrasonic dedusting, nickel material is placed in running water, to be cleaned by ultrasonic, removes the adhesive force such as the dust on nickel material surface small
Granule foreign；
S2：Physics is polished, and uses polishing rod to be polished nickel material and round brush in the way of physics is polished, uninterrupted during polishing
Ground plus running water are rinsed, and the gluey foreign matter on nickel material surface is removed, while eliminating the aberration on nickel material surface；
S3：Electrolysis, the nickel material after physics is polished is placed in alkaline electrolyte and soaks, and removes the greasy dirt on nickel material surface, then makes
With pure water rinsing, the composition of the alkaline electrolyte includes：The pure water of 12-17 parts of degreasing agent and 83-88 part；
S4：Activation, the nickel material after step S3 treatment is placed in activating solution and is soaked, and energization is activated, thoroughly removal nickel material table
The dirty of face, foreign matter and oxide layer, then with pure water rinsing, the activating solution is mass fraction for the hydrochlorate of 20%-30% is molten
Liquid；
S5：Microetch, the nickel material after activation process is soaked in micro-corrosion liquid, slight erosion is carried out to nickel material surface, at surface
It is coarse cloudy surface to manage, and is then cleaned with pure water again, and the composition of the micro-corrosion liquid includes：18-25 parts of sulfuric acid, 13-18 parts of mistake
Sodium sulphate and 40-50 parts of pure water.
2. a kind of nickel material according to claim 1 electroplates the pre-treating method of gold, it is characterised in that in the step S1 certainly
The temperature of water is 18-25 DEG C, is cleaned by ultrasonic the time for 2-3 minutes.
3. a kind of nickel material according to claim 1 electroplates the pre-treating method of gold, it is characterised in that beaten in the step S2
Frotton surface is provided with the soft brush of dentation, can carry out round brush to nickel material.
4. a kind of nickel material according to claim 1 electroplates the pre-treating method of gold, it is characterised in that electricity in the step S3
The soaking temperature for solving liquid is room temperature, and soak time is 3-6 seconds.
5. a kind of nickel material according to claim 1 electroplates the pre-treating method of gold, it is characterised in that living in the step S4
The process time of change is 1-3 minutes.
6. a kind of nickel material according to claim 1 electroplates the pre-treating method of gold, it is characterised in that micro- in the step S5
The time for losing treatment is 2-5 seconds.
7. a kind of nickel material according to claim 1 electroplates the pre-treating method of gold, it is characterised in that step S3, S4
Made using professional water purification machine with the pure water used in S5, the conductance of the pure water is less than 50 μ S/cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710157741.4A CN106702448A (en) | 2017-03-16 | 2017-03-16 | Pretreatment method of nickel material electrogilding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710157741.4A CN106702448A (en) | 2017-03-16 | 2017-03-16 | Pretreatment method of nickel material electrogilding |
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| CN106702448A true CN106702448A (en) | 2017-05-24 |
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| CN201710157741.4A Pending CN106702448A (en) | 2017-03-16 | 2017-03-16 | Pretreatment method of nickel material electrogilding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352497A (en) * | 2018-10-29 | 2019-02-19 | 平湖市法埃斯铝制品有限公司 | Aluminium shape surface polissoir |
| CN110670097A (en) * | 2019-09-03 | 2020-01-10 | 贵州航天电器股份有限公司 | Threaded hole electroplating method for sealing sintering type electric connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352497A (en) * | 2018-10-29 | 2019-02-19 | 平湖市法埃斯铝制品有限公司 | Aluminium shape surface polissoir |
| CN110670097A (en) * | 2019-09-03 | 2020-01-10 | 贵州航天电器股份有限公司 | Threaded hole electroplating method for sealing sintering type electric connector |
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