CN107904635A - A kind of electroless nickel layer surface-closed agent prescription and hole-sealing technology - Google Patents
A kind of electroless nickel layer surface-closed agent prescription and hole-sealing technology Download PDFInfo
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- CN107904635A CN107904635A CN201711102439.5A CN201711102439A CN107904635A CN 107904635 A CN107904635 A CN 107904635A CN 201711102439 A CN201711102439 A CN 201711102439A CN 107904635 A CN107904635 A CN 107904635A
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- hole
- electronickelling
- confining liquid
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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
- C25D5/48—After-treatment of electroplated surfaces
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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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of electroless nickel layer surface-closed agent prescription and hole-sealing technology.The present invention is by pre- sealing of hole electronickelling workpiece drying and processing and takes the sealant components of following corrresponding quality
Description
Technical field
The present invention relates to a kind of electroless nickel layer surface-closed agent prescription and hole-sealing technology, belongs to metal material surface engineering neck
Domain.
Background technology
The main reason for electroless nickel layer corrodes is coating there are hole, corrosive medium to connect by hole and matrix
Touch, form corrosion micro cell, coating is as cathode, and parent metal is as anode.And due at hole matrix area it is smaller, electric current
Density is big, forms the phenomenon of " big cathode primary anode ".Coating can not only play the work of due protection parent metal at this time
With the corrosion of parent metal can be accelerated on the contrary.The amount of size of electroless nickel layer hole can cause corrosion resistance huge shadow
Ring.Electroless nickel layer belongs to the cathodic coating of current potential calibration and mushy inherent characteristic, and barrier propterty is difficult to reach preferable
Degree, can not adapt to severe corrosive environment, therefore, it is necessary to by plating posttreatment dead-end pore, so as to improve its corrosion resistance
Energy.
Before the present invention makes, currently used electronickelling confining liquid is primarily present two problems, first, most of water
Property sealer can only meet 24h neutral salt spray test requirements, second, some oiliness sealers exist pollution environment the problem of.
The content of the invention
The purpose of the present invention, which is that, overcomes drawbacks described above, there is provided a kind of electroless nickel layer surface-closed agent prescription and sealing of hole work
Skill.
The technical scheme is that：
A kind of electroless nickel layer surface-closed agent prescription, it is mainly characterized by main component and is：
Another technical solution of the present invention is：
A kind of electroless nickel layer surface-closed agent hole-sealing technology, it is mainly characterized by following steps：
(1) by pre- sealing of hole electronickelling workpiece drying and processing；
(2) sealant components of following corrresponding quality are weighed
(3) it is above-mentioned each component is soluble in water and carry out strong air stirring, obtain confining liquid；
(4) confining liquid is placed in hot bath；
(5) electronickelling workpiece is put into confining liquid and submerged, then taken out；
(6) processing is dried in the electronickelling workpiece after Seal treatment by way of centrifuge dripping+drying.
Advantages of the present invention and effect be hole-sealing treatment process be by each component cooperative effect, by suction-operated with
Filming function complements each other, and forming one layer in metal surface has certain thickness protective cover, so as to change metal surface
State of charge and interfacial structure, increase the activation energy of corrosion reaction, suppress the anode and cathodic process of metal erosion reaction, with this
Meanwhile one layer of hydrophobic protective film is formed at hole using the screen effect of non-polar group, hinder related with corrosion reaction
Electric charge or material transfer, so as to reach dead-end pore, improve the purpose of coating corrosion resistance.
Embodiment
With reference to example, technical scheme is described in further detail.
Embodiment 1：
(1) by pre- sealing of hole electronickelling workpiece drying and processing；
(2) 500ml confining liquids are configured, weigh the sealant components of following corrresponding quality
(3) above-mentioned each component is dissolved in 50-60 DEG C of water and carries out strong air stirring, obtain confining liquid；
(4) confining liquid is placed in hot bath, design temperature is 60 DEG C；
(5) electronickelling workpiece is put into confining liquid, is taken out after 120s；
(6) processing is dried in the electronickelling workpiece after sealing pores by way of centrifuge dripping+drying, dried
Temperature is 100 DEG C, drying time 120s.
Plating is measured using the patch filter paper method in the porosity detection method of the QB/T3823-1999 light industrial goods coats of metal
Porous nickel layer rate, after the sealing pores liquid obtained by the present invention and hole-sealing treatment process processing, after 4min pastes the time,
There is no color transition point appearance on filter paper；Complete immersion corrosion test is carried out in 3.5% sodium chloride solution, sample is after 168h, sample
Product surface phenomenon without exception occurs；Using GB5938-86《The corrosion resistance test side of the light industrial goods coat of metal and chemical treatment layer
Method》Result of the test shows that the electronickelling workpiece by formula processing can resist 60h neutral salt spray, significantly larger than industry requirement.
Embodiment 2：
(1) by pre- sealing of hole electronickelling workpiece drying and processing；
(2) 500ml confining liquids are configured, weigh the sealant components of following corrresponding quality
(3) above-mentioned each component is dissolved in 50-60 DEG C of water and carries out strong air stirring, obtain confining liquid；
(4) confining liquid is placed in hot bath, design temperature is 60 DEG C；
(5) electronickelling workpiece is put into confining liquid, is taken out after 100s；
(6) processing is dried in the electronickelling workpiece after sealing pores by way of centrifuge dripping+drying, dried
Temperature is 100 DEG C, drying time 120s.
Plating is measured using the patch filter paper method in the porosity detection method of the QB/T3823-1999 light industrial goods coats of metal
Porous nickel layer rate, after the sealing pores liquid obtained by the present invention and hole-sealing treatment process processing, after 5min pastes the time,
There is no color transition point appearance on filter paper；Complete immersion corrosion test is carried out in 3.5% sodium chloride solution, sample is after 192h, sample
Product surface phenomenon without exception occurs；Using GB5938-86《The corrosion resistance test side of the light industrial goods coat of metal and chemical treatment layer
Method》Result of the test shows that the electronickelling workpiece by formula processing can resist 72h neutral salt spray, significantly larger than industry requirement.
Above example is merely illustrative of the invention's technical idea, it is impossible to protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any change done on the basis of technical solution, each falls within the scope of the present invention
Within.
Claims (2)
1. a kind of electroless nickel layer surface-closed agent prescription, it is characterised in that main component is：
A kind of 2. electroless nickel layer surface-closed agent hole-sealing technology, it is characterised in that following steps：
(1) by pre- sealing of hole electronickelling workpiece drying and processing；
(2) sealant components of following corrresponding quality are weighed
(3) it is above-mentioned each component is soluble in water and carry out strong air stirring, obtain confining liquid；
(4) confining liquid is placed in hot bath；
(5) electronickelling workpiece is put into confining liquid and submerged, then taken out；
(6) processing is dried in the electronickelling workpiece after sealing pores by way of centrifuge dripping+drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711102439.5A CN107904635B (en) | 2017-11-07 | 2017-11-07 | A kind of electroless nickel layer surface-closed agent prescription and hole-sealing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711102439.5A CN107904635B (en) | 2017-11-07 | 2017-11-07 | A kind of electroless nickel layer surface-closed agent prescription and hole-sealing technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107904635A true CN107904635A (en) | 2018-04-13 |
| CN107904635B CN107904635B (en) | 2019-05-07 |
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| CN201711102439.5A Active CN107904635B (en) | 2017-11-07 | 2017-11-07 | A kind of electroless nickel layer surface-closed agent prescription and hole-sealing technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112410838A (en) * | 2020-04-08 | 2021-02-26 | 上海昕沐化学科技有限公司 | Water-based electroplated nickel sealing agent and preparation method thereof |
| CN113463149A (en) * | 2021-06-30 | 2021-10-01 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for nickel electroplating layer and hole sealing method |
| CN113502520A (en) * | 2021-06-30 | 2021-10-15 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for electroplated copper layer and hole sealing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054697A (en) * | 2007-02-12 | 2007-10-17 | 伟业重工(安徽)有限公司 | Plating black nickel and plating technique thereof |
-
2017
- 2017-11-07 CN CN201711102439.5A patent/CN107904635B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054697A (en) * | 2007-02-12 | 2007-10-17 | 伟业重工(安徽)有限公司 | Plating black nickel and plating technique thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张东洋等: "电镀镍层表面封孔工艺的研究", 《化学工程与装备》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112410838A (en) * | 2020-04-08 | 2021-02-26 | 上海昕沐化学科技有限公司 | Water-based electroplated nickel sealing agent and preparation method thereof |
| CN112410838B (en) * | 2020-04-08 | 2022-07-01 | 上海昕沐化学科技有限公司 | Water-based electroplated nickel sealing agent and preparation method thereof |
| CN113463149A (en) * | 2021-06-30 | 2021-10-01 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for nickel electroplating layer and hole sealing method |
| CN113502520A (en) * | 2021-06-30 | 2021-10-15 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for electroplated copper layer and hole sealing method |
| CN113502520B (en) * | 2021-06-30 | 2023-01-31 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for electroplated copper layer and hole sealing method |
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| Publication number | Publication date |
|---|---|
| CN107904635B (en) | 2019-05-07 |
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