CN109778271A - A kind of high efficiency and environmentally friendly silicomangan electroplating technology - Google Patents
A kind of high efficiency and environmentally friendly silicomangan electroplating technology Download PDFInfo
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- CN109778271A CN109778271A CN201711117040.4A CN201711117040A CN109778271A CN 109778271 A CN109778271 A CN 109778271A CN 201711117040 A CN201711117040 A CN 201711117040A CN 109778271 A CN109778271 A CN 109778271A
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- degreasing
- rust removal
- silicomangan
- cleaning
- hydrophobic
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Abstract
The invention discloses a kind of high efficiency and the silicomangan electroplating technology of environmental protection, include the following steps: that degreasing and rust removal, ultrasonic cleaning, plating, dehydrogenation, hydrophobic processing, alcohol are washed, wash, dried up.Oil removing, two step processes of derusting are combined into one by the present invention, have been saved process, have been reduced cost, have improved efficiency, weak basic condition, and environmental pollution is few；Ultrasonic cleaning process is increased, whole pre-treatment is high-efficient, and environment friendly and pollution-free；In electroplating process, using acid system, environmental pollution is few, the additives such as ascorbic acid, hydroquinone are added to, are electroplated under suitable current density, electroplating temperature, it is good that silicomanganese is co-deposited effect, finally obtained silicomangan electroplated layer uniform color, it is careful to crystallize, and thicknesses of layers can achieve 10 μm, and wearability is good, it unidirectionally rubs on W40 sand paper 100 times, coating non-scale, while alloy layer has good electric conductivity, can effectively prevent in stainless steel chromium to external migration and diffusion.
Description
Technical field
The present invention relates to a kind of high efficiency and the silicomangan electroplating technologies of environmental protection, belong to electroplating technology.
Background technique
Plating is to obtain the process of metal deposition layer in the surface of solids by electrochemical method.As traditional Surface Engineering
Important means, electroplating technology technology be used to provide for workpiece surface for a long time prevent corrosion protective layer and decorative decoration
Layer；Or to change the surface characteristic of basis material, to produce the metal or alloy coating of specific composition and performance.Due to aviation
The development of space flight and nuclear material engineering industry and electronics and information industry, electroplating process have been used for preparing different types of new
Type composite material, including the winding of particle disperse metallic composite, staple fiber, long fibre, Whisker reinforced material, lamellar composite
Material and optical composite material；Prepare semiconductor material component, including film-type semiconductor element, flat panel display device, too
Positive energy battery thin film, the resistance in large scale integrated circuit, capacitor, light guide, magnetic conductance and memory cell, luminous and fluorescent device
Deng.
With the rapid development of China's modernization construction, the electroplating industry as one of light industry industry pillar also shows
Developing state with rapid changepl. never-ending changes and improvements has emerged many new electroplating technologies and plating, it is growing greatly to enrich people
Need of living and producing.But biggish pollution problem is also brought simultaneously.The pollution that electroplating technology and electroplate liquid generate is plating row
The major part of industry pollution.
There are many current plating type, including nickel plating, plating silicon, zinc-plated etc., and there are also some alloy platings, such as nickel magnesium binary
Alloy plating, the plating of silicomanganese bianry alloy.Silicomangan plating performance is excellent, but in the plating process, due to Si2+/Si and
The standard electrode EMF difference of Mn2+/Mn is larger, respectively 0.337VSCE and -1.182VSCE, it is difficult to realize that Si and Mn are coprecipitated
Product, it is therefore desirable to study a kind of high efficiency and environmentally friendly silicomangan electroplating technology.
In current electroplating technology, need to carry out the matrix of plating before plating degreasing (oil removing) and etch (derusting,
Also referred to as pickling) pre-treatment.Traditional oil removing (degreasing) technique is strong basicity oil removing, and temperature is generally at 80-90 DEG C.It is tight for greasy dirt
Weight workpiece, treatment temperature is higher, the time also extend to greasy dirt completely it is cleared until.Due to heating, lye gives out alkaline gas
Body not only pollutes environment, but also is detrimental to health.The concentrated hydrochloric acid that etch (derusting) is generally 35% or so with concentration, without
Dilution is crossed just directly to pour into descaling bath.The fugitive mist that turns sour of concentrated hydrochloric acid, the alkaline gas distributed with degreasing is the same, need to increase pump drainage
Wind apparatus.Not only production efficiency is low for such pretreatment procedure, at high cost, also will cause environmental pollution.
Summary of the invention
Goal of the invention: in view of the above-mentioned problems existing in the prior art, that the object of the present invention is to provide a kind of electroplating effects is good,
High-efficient, the environmentally friendly silicomangan electroplating technology of pre-treatment.
Technical solution: for achieving the above object, The technical solution adopted by the invention is as follows:
A kind of high efficiency and environmentally friendly silicomangan electroplating technology, include the following steps:
(1) degreasing and rust removal: workpiece to be electroplated is put into drum, and the degreasing and rust removal water of 1/2 volume is housed in drum
It bathes, contains in the degreasing and rust removal water-bath: wood powder 4-5g/L, sodium sulfite 20-30g/L, sodium hypochlorite 10-15g/L, potassium hydroxide
2-3g/L, ammonium chloride 4-5g/L, citric acid 2.5-3.5g/L, impregnate 25-35min at room temperature, then the revolving speed of 60-100r/min
Rotation is lower to clean 30-60min, achievees the purpose that degreasing and rust removal；
(2) ultrasonic cleaning: the second that workpiece after degreasing and rust removal is 20-30% in 40 DEG C of Ultrasonographic fraction
Ultrasonic treatment 1-2min, ultrasonic frequency 45Hz are carried out in aqueous solution；Clear water is refilled after cleaning same
It cleans under ultrasound condition twice, finally dries up；
(3) dehydrogenation: being put into soya-bean oil at 185-195 DEG C the article after plating and carry out dehydrogenation, then natural
Oil slick is wiped after cooling；
(4) hydrophobic is handled: to the coating surface of the article after dehydrogenation by being 8-10% hydrophobic containing mass fraction
The hydrophobic solution of agent carries out hydrophobic processing；
(5) alcohol is washed, washes, dried up: the ethylene aqueous solution for being 50% by hydrophobic treated article first uses volume fraction is clear
It washes once, then carries out cleaning three times with deionized water again, then dry up.
The utility model has the advantages that compared with prior art, the present invention there is following conspicuousness the utility model has the advantages that
1, oil removing, two step processes of derusting are combined into one, have saved process, reduced cost, has improved efficiency, alkalescent
Condition, environmental pollution are few；Ultrasonic cleaning process is increased, whole pre-treatment is high-efficient, and environment friendly and pollution-free；It was electroplated
Cheng Zhong, using acid system, environmental pollution is few, is added to the additives such as ascorbic acid, hydroquinone, close in suitable electric current
It is electroplated under degree, electroplating temperature, silicomanganese co-deposition effect is good, finally obtained silicomangan electroplated layer uniform color, crystallization
Careful, thicknesses of layers can achieve 10 μm, and wearability is good, unidirectionally rub on W40 sand paper 100 times, and coating non-scale closes simultaneously
Gold plate has good electric conductivity, and chromium in stainless steel can effectively be prevented to protect environment to external migration and diffusion；
2, it joined the addition such as hyperbranched Gemini quaternary ammonium salt, polyethylene glycol, potassium hydroxide in electroplating process, in electroplate liquid
Agent, in electroplating process, cathode electrode current potential occur it is negative move phenomenon, sedimentation potential moves about 100mV to negative, improves cathode table
The absorption property in face and the polarizability of electroplate liquid, so that the resistance to neutral salt spray of final electroplated layer improves the chlorination 3.5%
Corrosion resistance is enhanced in ammonium salt solution；There is the time > 196h of white rust, the time > 960h of red rust occurs；
3, electroplating technology of the invention has carried out the pre-heat treatment to article before plating, ensure that subsequent electroplating effect；
4, electroplating technology of the invention uses comparatively gentle dehydrogenation to the article after plating and hydrophobic is handled, improves
The air-tightness and corrosion resistance of coating.
Specific embodiment
Embodiment
A kind of high efficiency and environmentally friendly silicomangan electroplating technology, include the following steps:
(1) degreasing and rust removal: workpiece to be electroplated is put into drum, and the degreasing and rust removal water of 1/2 volume is housed in drum
It bathes, contains in the degreasing and rust removal water-bath: wood powder 4g/L, sodium sulfite 22g/L, sodium hypochlorite 12g/L, potassium hydroxide 2g/L, chlorine
Change ammonium 4g/L, citric acid 3.1g/L, impregnates 28min at room temperature, then clean 45min under the rotational speed of 65r/min, reach and remove
The purpose of oil derusting；
(2) ultrasonic cleaning: the ethylene that workpiece after degreasing and rust removal is 25% in 40 DEG C of Ultrasonographic fraction
Ultrasonic treatment 1min, ultrasonic frequency 45Hz are carried out in aqueous solution；Clear water is refilled after cleaning in same ultrasound
Under the conditions of clean twice, finally dry up；
(3) dehydrogenation: the article after plating is put into soya-bean oil at 185 DEG C and carries out dehydrogenation, then natural cooling
After wipe oil slick；
(4) hydrophobic is handled: to the coating surface of the article after dehydrogenation by being 9% hydrophober containing mass fraction
Hydrophobic solution carries out hydrophobic processing；
(5) alcohol is washed, washes, dried up: the ethylene aqueous solution for being 50% by hydrophobic treated article first uses volume fraction is clear
It washes once, then carries out cleaning three times with deionized water again, then dry up.
Claims (1)
1. a kind of high efficiency and the silicomangan electroplating technology of environmental protection, characterized by the following steps:
(1) degreasing and rust removal: workpiece to be electroplated is put into drum, and the degreasing and rust removal water-bath of 1/2 volume is housed in drum, should
Contain in degreasing and rust removal water-bath: wood powder 4-5g/L, sodium sulfite 20-30g/L, sodium hypochlorite 10-15g/L, potassium hydroxide 2-3g/
L, ammonium chloride 4-5g/L, citric acid 2.5-3.5g/L, impregnate 25-35min at room temperature, then the rotational speed of 60-100r/min
Lower cleaning 30-60min, achievees the purpose that degreasing and rust removal；
(2) ultrasonic cleaning: the ethylene water that workpiece after degreasing and rust removal is 20-30% in 40 DEG C of Ultrasonographic fraction
Ultrasonic treatment 1-2min, ultrasonic frequency 45Hz are carried out in solution；Clear water is refilled after cleaning in same ultrasound
Under the conditions of clean twice, finally dry up；
(3) dehydrogenation: the article after plating is put into soya-bean oil at 185-195 DEG C and carries out dehydrogenation, then natural cooling
After wipe oil slick；
(4) hydrophobic is handled: to the coating surface of the article after dehydrogenation by being 8-10% hydrophober containing mass fraction
Hydrophobic solution carries out hydrophobic processing；
(5) alcohol is washed, washes, is dried up: the ethylene aqueous cleaning one for being 50% by hydrophobic treated article first uses volume fraction
It is secondary, cleaning three times then is carried out with deionized water again, is then dried up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711117040.4A CN109778271A (en) | 2017-11-13 | 2017-11-13 | A kind of high efficiency and environmentally friendly silicomangan electroplating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711117040.4A CN109778271A (en) | 2017-11-13 | 2017-11-13 | A kind of high efficiency and environmentally friendly silicomangan electroplating technology |
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| Publication Number | Publication Date |
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| CN109778271A true CN109778271A (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711117040.4A Pending CN109778271A (en) | 2017-11-13 | 2017-11-13 | A kind of high efficiency and environmentally friendly silicomangan electroplating technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267135A (en) * | 2020-10-19 | 2021-01-26 | 扬州市景杨表面工程有限公司 | Zinc-nickel alloy electroplating process for vacuum brake booster shell of new energy automobile |
-
2017
- 2017-11-13 CN CN201711117040.4A patent/CN109778271A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267135A (en) * | 2020-10-19 | 2021-01-26 | 扬州市景杨表面工程有限公司 | Zinc-nickel alloy electroplating process for vacuum brake booster shell of new energy automobile |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190521 |