CN101619476B - Treatment process before plating environment-friendly copper alloy - Google Patents
Treatment process before plating environment-friendly copper alloy Download PDFInfo
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- CN101619476B CN101619476B CN2009100699481A CN200910069948A CN101619476B CN 101619476 B CN101619476 B CN 101619476B CN 2009100699481 A CN2009100699481 A CN 2009100699481A CN 200910069948 A CN200910069948 A CN 200910069948A CN 101619476 B CN101619476 B CN 101619476B
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- copper alloy
- treatment process
- process before
- before plating
- phytic acid
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a treatment process before plating an environment-friendly copper alloy. The treatment process comprises the following four steps: (i) using a water-based cleaning agent to deoil; (ii) rinsing the copper alloy in cold water; (iii) ultrasonically immersing the copper alloy in phytic acid; and (iv) ultrasonically rinsing the copper alloy in deionized water. The invention adopts the phytic acid for the ultrasonic using treatment process before plating the copper alloy, not only can thoroughly remove an oxide film on the surface of a basal body of a plating article and activates the basal body, but also can avoid over eroding the basal body of the plating article, achieve the environmental-protection requirement in aspects of operation environment, sewage drain, and the like and greatly decrease the production cost.
Description
Technical field
The invention belongs to a kind of plating, chemical plating technology, be specifically related to a kind of treatment process before plating environment-friendly copper alloy of workpiece plating pre-treatment.
Background technology
The pre-treatment of metal works before plating, electroless plating is very important, and the quality that the workpiece substrate material surface is handled directly has influence on the quality of coating.At present, the operation of workpiece plating pre-processing technique is many, man-hour long and using method acetone, sodium hydroxide and hydrogenchloride equal solvent type clean-out system and corrodibility soda acid.Though leaning solvent has very strong cleansing power, inflammable, volatile, human central nervous there is stronger pungency, long-term contact can cause diseases such as neurasthenia, chapped skin.The corrodibility soda acid is heavier to metal attack, needs thermal source during use, not only energy consumption height but also contaminate environment.
There are strict requirements to the use of these materials and waste treatment for State Environmental Protection Administration and Quality Supervision Bureau, must could discharge after reaching required standard through handling, and this will improve production cost of products widely.
Summary of the invention
The present invention proposes in order to overcome the shortcoming that exists in the prior art, and its objective is provides a kind of treatment process before plating environment-friendly copper alloy.
Technical scheme of the present invention is: a kind of treatment process before plating environment-friendly copper alloy comprises following four steps:
(i) aqueous cleaning agent oil removing
Aqueous cleaning agent pH=8～10
Temperature: 0～35 ℃
Time: 20～30 minutes
(ii) cold rinse
Cold water (tap water)
Temperature: 0～35 ℃ (room temperature)
Time: 1～3 minute
The (iii) ultrasonic etch of phytic acid
Phytic acid concentration of aqueous solution: 5%～50%
Time: 20～60 seconds
Ultrasonic frequency: 40KH
Z
Ultrasonic power: 250w
0～35 ℃ of temperature (room temperature)
The (iv) ultrasonic rinsing of deionized water
Deionized water: specific conductivity 0.1～2 μ s/cm
Ultrasonic frequency: 40KH
Z
Ultrasonic power: 250w
Temperature: 0～35 ℃ (room temperature)
Time: 1～3 minute
The present invention adopts treatment process before plating environment-friendly copper alloy, can thoroughly remove the oxidation film layer of plating piece matrix surface, and the activation matrix can be avoided the excessive erosion of plating piece matrix again, and can reach environmental requirement again at aspects such as operating environment, sewage discharges.
Description of drawings
Fig. 1 is the skeleton diagram of treatment process before plating environment-friendly copper alloy of the present invention.
Wherein:
1 oil removing process, 2 etch processes
11 aqueous cleaning agent oil removings, 12 cold rinse
The ultrasonic rinsing of ultrasonic etch 22 deionized waters of 21 phytic acid
Embodiment
As shown in Figure 1, a kind of treatment process before plating environment-friendly copper alloy, comprise oil removing process 1 and etch process 2, wherein oil removing process 1 is made up of aqueous cleaning agent oil removing 11 and cold rinse 12, and etch process 2 is made up of ultrasonic etch 21 of phytic acid and the ultrasonic rinsing 22 of deionized water.Specifically comprise following four steps:
(i) aqueous cleaning agent oil removing
Degreasing fluid: aqueous cleaning agent (commercially available) pH=8～10
Remove oil temperature: 0～35 ℃
The oil removing time: 20～30 minutes
The oil removing aqueous cleaning agent is combined human body and environmentally friendly tensio-active agent, rust-preventive agent, greasy dirt dispersion agent and solubility promoter by multiple.
The composition and the effect of aqueous cleaning agent see Table 1
Table 1
Its detergency mechanism is: wetting, osmosis takes place in the greasy dirt metallic surface in tensio-active agent, the sticking power of greasy dirt in the metallic surface is weakened or offsets; By the method for mechanical assistance, quicken greasy dirt and break away from the metallic surface; That greasy dirt enters is emulsified in the washing lotion, disperse, thereby reaches the purpose of oil removing.
(ii) cold rinse
Cold water (tap water)
Temperature: 0～35 ℃ (room temperature)
Time: 1～3 minute
The (iii) ultrasonic etch of phytic acid
Phytic acid concentration of aqueous solution: 5%～50%
Time: 20～60 seconds
Ultrasonic frequency: 40KH
Z
Ultrasonic power: 250w
0～35 ℃ of temperature (room temperature)
The phytic acid that the present invention adopts is a kind of Nantural non-toxic Chemicals of extracting from food crop, belongs to Green Product.Chemical name is a myo-Inositol hexaphosphate, and outward appearance is pale brown look thick liquid, and molecular weight is 660.4, and molecular formula is C
6H
18O
24P
6, soluble in water, it not only has stronger acidity, also has comparatively special structure.Wherein, containing can be with 24 Sauerstoffatoms of metal cooperation, 12 hydroxyls and 6 phosphate.Phytic acid is the multiple tooth sequestrant of a kind of rare metal, when with metal complex, easily forms a plurality of chelate rings, and formed complex compound stability is extremely strong.Therefore, it is the good inhibiter of copper alloy in water-soluble medium.
The (iv) ultrasonic rinsing of deionized water
Deionized water: specific conductivity 0.1～2 μ s/cm
Ultrasonic frequency: 40KH
Z
Ultrasonic power: 250w
Temperature: 0～35 ℃ (room temperature)
Time: 1～3 minute
The present invention adopts treatment process before plating environment-friendly copper alloy, can thoroughly remove the oxidation film layer of plating piece matrix surface, and the activation matrix can be avoided the excessive erosion of plating piece matrix again, and can reach environmental requirement again at aspects such as operating environment, sewage discharges.
Claims (1)
1. treatment process before plating environment-friendly copper alloy is characterized in that: comprise following four steps:
(i) aqueous cleaning agent oil removing
Aqueous cleaning agent pH=8～10
Temperature: 0～35 ℃
Time: 20～30 minutes
(ii) cold rinse
Tap water
Temperature: 0～35 ℃
Time: 1～3 minute
The (iii) ultrasonic etch of phytic acid
Phytic acid concentration of aqueous solution: 5%～50%
Time: 20～60 seconds
0～35 ℃ of temperature
The (iv) ultrasonic rinsing of deionized water
Deionized water: specific conductivity 0.1～2 μ s/cm
Temperature: 0～35 ℃
Time: 1～3 minute
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100699481A CN101619476B (en) | 2009-07-30 | 2009-07-30 | Treatment process before plating environment-friendly copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100699481A CN101619476B (en) | 2009-07-30 | 2009-07-30 | Treatment process before plating environment-friendly copper alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619476A CN101619476A (en) | 2010-01-06 |
| CN101619476B true CN101619476B (en) | 2011-01-12 |
Family
ID=41512883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100699481A Expired - Fee Related CN101619476B (en) | 2009-07-30 | 2009-07-30 | Treatment process before plating environment-friendly copper alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101619476B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846410A (en) * | 2015-06-16 | 2015-08-19 | 沈阳飞机工业（集团）有限公司 | Method for electroplating nickel on brass and red copper alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218069C (en) * | 2003-06-21 | 2005-09-07 | 赵定宣 | Phytic acid cleaning agent |
| CN101463484A (en) * | 2008-11-28 | 2009-06-24 | 江苏海迅实业集团股份有限公司 | Water-based cleaning agent for metallic surface |
-
2009
- 2009-07-30 CN CN2009100699481A patent/CN101619476B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218069C (en) * | 2003-06-21 | 2005-09-07 | 赵定宣 | Phytic acid cleaning agent |
| CN101463484A (en) * | 2008-11-28 | 2009-06-24 | 江苏海迅实业集团股份有限公司 | Water-based cleaning agent for metallic surface |
Non-Patent Citations (1)
| Title |
|---|
| 王文忠等.金属缓蚀剂及其应用.电镀与环保.2007,第27卷(第6期),43-44. * |
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| Publication number | Publication date |
|---|---|
| CN101619476A (en) | 2010-01-06 |
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| CP03 | Change of name, title or address |
Address after: 300384 Tianjin hi tech District of Xiqing City Huayuan Industrial Zone Development six road No. 6 Haitai green industry base building J room 104 Patentee after: China core (Tianjin) New Technology Development Co., Ltd. Address before: The 300384 Tianjin City Huayuan Industrial Zone Development Road six No. 6 Haitai green industry base building J room 104 Patentee before: Huahe New Technology Development Company, Research Institute of Physical and Chemical Engineering of Nuclear Industry |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200306 Address after: 300180, No. 168 Jintang Road, Hedong District, Tianjin Patentee after: Inst. of Physics and Chemistry Engineering Address before: 300384 Tianjin hi tech District of Xiqing City Huayuan Industrial Zone Development six road No. 6 Haitai green industry base building J room 104 Patentee before: China core (Tianjin) New Technology Development Co., Ltd. |
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Granted publication date: 20110112 Termination date: 20200730 |