CN110484940A - A kind of light metal electro-plating method - Google Patents
A kind of light metal electro-plating method Download PDFInfo
- Publication number
- CN110484940A CN110484940A CN201910857697.7A CN201910857697A CN110484940A CN 110484940 A CN110484940 A CN 110484940A CN 201910857697 A CN201910857697 A CN 201910857697A CN 110484940 A CN110484940 A CN 110484940A
- Authority
- CN
- China
- Prior art keywords
- zinc
- plating
- light metal
- processing
- nickel
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- 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
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
-
- 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
- C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
-
- 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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The present invention relates to electroplating technology more particularly to a kind of light metal electro-plating methods, comprising the following steps: completes heavy zinc and chemical nickel processing on the surface of light metal matrix；Acid zinc plating processing is completed in heavy zinc and electroless nickel layer surface；Plating zinc-nickel processing is completed in acid zinc plating layer surface；Closing or electrophoretic paint processing are completed on zinc-plated nickel layer surface.Goal of the invention of the invention is to provide a kind of light metal electro-plating method solve traditional electroplating work procedure in the presence of process is tedious, coating is easily fallen and the technical problem of corrosion resistance difference using technical solution provided by the invention.
Description
Technical field
The present invention relates to electroplating technology more particularly to a kind of light metal electro-plating methods.
Technical background
Plating is to plate the process of the other metal or alloy of a thin layer on certain metal surfaces using electrolysis principle, plating
Technique is must to complete according to sequencing, and electroplating assembly line equipment is in order to which workpiece is sequentially placed into electroplating bath and carries out electricity
Plating.
In traditional electroplating technology, after workpiece completes pre-treatment, then plating is completed by following processing and is processed: heavy zinc →
Chemical nickel → alkali copper → coke copper → nickel plating → decoration plating.
For lightweight active metal, such as aluminium, magnesium and its alloy, since light metal is more active, the easy shape in surface in air
It is different from institute's plating metal by heating rate at oxygen film, so that coating be made easily to fall, it is not easy to plate coating, the problems such as corrosion resistance is poor, be
This conventional plating techniques is not high in corrosion resistance, generally at 100 hours or less.
And in above-mentioned electroplating process, due to having used cyanide, the pollution of environment is increased, and to production operation
Personnel have certain toxic action, while cost is very high during copper facing, increase cumbersome, the per pass work of production cost and process
The stringent control that sequence need to specially be come, to increase the difficulty of technology and the fraction defective of product.
Summary of the invention
Goal of the invention of the invention is to provide a kind of light metal electro-plating method, using technical solution solution provided by the invention
Traditional electroplating work procedure of having determined easily is fallen there are coating and the technical problem of corrosion resistance difference.
In order to solve the above technical problem, the present invention provides a kind of light metal electro-plating methods, comprising the following steps:
S100, heavy zinc and chemical nickel processing are completed on the surface of light metal matrix；
S200, acid zinc plating processing is completed in heavy zinc and electroless nickel layer surface；
S300, plating zinc-nickel processing is completed in acid zinc plating layer surface；
S400, closing or electrophoretic paint processing are completed on zinc-plated nickel layer surface.
Preferably, in step s 200, electroplate liquid used in the acid zinc plating processing includes following ratio:
KCl:250g/L；
ZnCl2: 50g/L；
Brightener NT-ZincAC260A:0.5 ∽ 2ml/L；
Walk agent NT-ZincAC260B:20 ∽ 40ml/L.
Preferably, the acid zinc plating processing in step S200 includes with 2 ∽ 4A/dm2Room temperature is electroplated 10 minutes.
Preferably, electroplate liquid used in the plating zinc-nickel processing includes following ratio:
NaOH:120g/L；
ZnO:10g/L；
Brightener NT401A:1 ∽ 3ml/L；
Complexing agent NT401B:40 ∽ 80ml/L；
Replenishers NT401C:18 ∽ 22ml/L；
Brilliant thin agent NT401D:1 ∽ 3ml/L.
Preferably, the plating zinc-nickel processing in step S300 includes with 0.5 ∽ 4A/dm2Room temperature is electroplated 30 minutes.
Preferably, in step S400, the seal coat used in the closing or electrophoretic paint processing is zinc-plated transparent confinement
Agent GT-Sealer 501W.
Preferably, after acid zinc plating processing, the acid zinc plating layer with a thickness of 6 μm of 4 ∽.
Preferably, after plating zinc-nickel processing, the zinc-plated nickel layer with a thickness of 10 μm of 6 ∽.
From the foregoing, it will be observed that available following the utility model has the advantages that reducing cyanide using technical solution provided by the invention
It uses, reduces process, reduce environmental pollution, keep worker operation convenient, process controllability greatly improves, to reduce into
This, reduces fraction defective, improves production efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, the present invention will be implemented below
Attached drawing needed in the description of example or the prior art is briefly described.It should be evident that the accompanying drawings in the following description
Only a part of the embodiments of the present invention, for those of ordinary skill in the art, in not making the creative labor property
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is light metal of embodiment of the present invention electro-plating method flow diagram；
Fig. 2 is that schematic diagram of a layer structure is electroplated in light metal of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The lightweights such as aluminium, magnesium and its alloy active metal, chemical attribute is more active, and surface easily forms oxygen in air
Film falls coating easily by heating rate and institute's plating metal difference, it is not easy to plate coating, the problems such as corrosion resistance is poor.
As shown in Figure 1, in order to solve the above-mentioned technical problem, the present embodiment provides a kind of light metal electro-plating methods, including with
Lower step:
S100, heavy zinc and chemical nickel processing are completed on the surface of light metal matrix.
After the step is using heavy zinc and chemical nickel processing, one layer can be covered by heavy zinc and change on the surface of light metal matrix
The electroplated layer that nickel is constituted is learned, and the electroplated layer can form biggish binding force between the surface of light metal matrix.
S200, acid zinc plating processing is completed in heavy zinc and electroless nickel layer surface.
In this step, electroplate liquid used in acid zinc plating processing includes following ratio:
KCl:250g/L；ZnCl2: 50g/L；Brightener NT-ZincAC260A:0.5 ∽ 2ml/L；Walk agent NT-
ZincAC260B:20∽40ml/L。
The concrete operations of acid zinc plating processing are with 2 ∽ 4A/dm2Room temperature is electroplated 10 minutes.
After completing acid zinc plating processing, acid zinc plating layer can be obtained again in the plating layer surface that step S100 is obtained, closely
One step increase with the binding force of matrix and can retrospective, adjust the brightness of coating.
S300, plating zinc-nickel processing is completed in acid zinc plating layer surface.
In this step, electroplate liquid used in the processing of plating zinc-nickel includes following ratio:
NaOH:120g/L；ZnO:10g/L；Brightener NT401A:1 ∽ 3ml/L；Complexing agent NT401B:40 ∽ 80ml/L；
Replenishers NT401C:18 ∽ 22ml/L；Brilliant thin agent NT401D:1 ∽ 3ml/L.
The concrete operations for plating zinc-nickel processing are with 0.5 ∽ 4A/dm2Room temperature is electroplated 30 minutes.
After completing plating zinc-nickel processing, zinc-nickel alloy can be obtained again in the acid zinc plating layer surface that step S200 is obtained
Layer, zinc-nickel alloy layer are one layer of electroplated layers with highly corrosion resistant, as high anticorrosion layer and can make chromatograph.
After completing the above electroplating operations, Seal treatment can be carried out.
S400, closing or electrophoretic paint processing are completed on zinc-plated nickel layer surface.
In this step, in closing or electrophoretic paint processing the seal coat that uses for zinc-plated transparent confinement agent GT-Sealer
501W。
After closing or electrophoretic paint processing, closing or electrophoretic paint layer can be obtained, closing or electrophoretic paint layer are as raising
Anticorrosion layer, decorative appearance color and hand touch layer.
Refer to Fig. 2, after the electroplating processes for completing above step S100-S400, can light metal-based, 1 surface according to
It is secondary to form heavy zinc+electroless nickel layer 2, acid zinc plating layer 3, zinc-nickel alloy layer 4 and closing or electrophoretic paint layer 5, wherein acid zinc plating
Layer 3 with a thickness of 6 μm of 4 ∽, zinc-plated nickel layer 4 with a thickness of 10 μm of 6 ∽.
In conclusion the electroplated layer that the light metal electro-plating method provided through the embodiment of the present invention obtains, reduces cyaniding
The use of object, not only reduces process, also reduces environmental pollution, keeps worker operation convenient, and process controllability greatly improves, from
And reduce costs, fraction defective is reduced, production efficiency is improved；And obtained product is electroplated and improves corrosion resisting property, it is neutral
Salt fog is up to 1000 hours, can be widely applied for the fields such as auto parts and components, engine component, life decoration plating piece.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (8)
1. a kind of light metal electro-plating method, it is characterised in that: the following steps are included:
S100, heavy zinc and chemical nickel processing are completed on the surface of light metal matrix；
S200, acid zinc plating processing is completed in heavy zinc and electroless nickel layer surface；
S300, plating zinc-nickel processing is completed in acid zinc plating layer surface；
S400, closing or electrophoretic paint processing are completed on zinc-plated nickel layer surface.
2. light metal electro-plating method according to claim 1, it is characterised in that: in step s 200, the acid zinc plating
Electroplate liquid used in processing includes following ratio:
KCl:250g/L；
ZnCl2: 50g/L；
Brightener NT-ZincAC260A:0.5 ∽ 2ml/L；
Walk agent NT-ZincAC260B:20 ∽ 40ml/L.
3. light metal electro-plating method according to claim 2, it is characterised in that: the acid zinc plating in step S200 handles packet
It includes with 2 ∽ 4A/dm2Room temperature is electroplated 10 minutes.
4. light metal electro-plating method according to claim 2 or 3, it is characterised in that: in step S300, the plating zinc-nickel
Electroplate liquid used in processing includes following ratio:
NaOH:120g/L；
ZnO:10g/L；
Brightener NT401A:1 ∽ 3ml/L；
Complexing agent NT401B:40 ∽ 80ml/L；
Replenishers NT401C:18 ∽ 22ml/L；
Brilliant thin agent NT401D:1 ∽ 3ml/L.
5. light metal electro-plating method according to claim 4, it is characterised in that: the plating zinc-nickel in step S300, which is handled, includes
With 0.5 ∽ 4A/dm2Room temperature is electroplated 30 minutes.
6. light metal electro-plating method according to claim 4, it is characterised in that: in step S400, the closing or electricity
The seal coat used in swimming paint processing is zinc-plated transparent confinement agent GT-Sealer501W.
7. light metal electro-plating method according to claim 3, it is characterised in that: after the acid zinc plating processing, the acid
Property zinc coat with a thickness of 6 μm of 4 ∽.
8. light metal electro-plating method according to claim 5, it is characterised in that: described zinc-plated after the plating zinc-nickel processing
Nickel layer with a thickness of 10 μm of 6 ∽.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857697.7A CN110484940A (en) | 2019-09-09 | 2019-09-09 | A kind of light metal electro-plating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857697.7A CN110484940A (en) | 2019-09-09 | 2019-09-09 | A kind of light metal electro-plating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110484940A true CN110484940A (en) | 2019-11-22 |
Family
ID=68557381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910857697.7A Pending CN110484940A (en) | 2019-09-09 | 2019-09-09 | A kind of light metal electro-plating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110484940A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233387A (en) * | 2013-06-08 | 2014-12-24 | 无锡市锡山区鹅湖镇荡口青荡金属制品厂 | Plating solution for electroplating zinc-nickel-copper alloy on surface of magnesium alloy |
| CN108179418A (en) * | 2018-02-08 | 2018-06-19 | 广州超邦化工有限公司 | A kind of preparation method of zn-ni alloy deposits structure suitable under strong corrosive environment |
| CN109256256A (en) * | 2018-11-14 | 2019-01-22 | 烟台首钢磁性材料股份有限公司 | A kind of neodymium iron boron magnetic body and its preparation process of electroplating of Zn-Ni alloy onto surface |
| EP3492533A1 (en) * | 2017-12-04 | 2019-06-05 | Hamilton Sundstrand Corporation | Increasing anti-corrosion through nanocomposite materials |
| CN110205662A (en) * | 2019-06-27 | 2019-09-06 | 安徽鼎旺环保材料科技有限公司 | A kind of aluminium alloy surface electric plating preprocess method |
-
2019
- 2019-09-09 CN CN201910857697.7A patent/CN110484940A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233387A (en) * | 2013-06-08 | 2014-12-24 | 无锡市锡山区鹅湖镇荡口青荡金属制品厂 | Plating solution for electroplating zinc-nickel-copper alloy on surface of magnesium alloy |
| EP3492533A1 (en) * | 2017-12-04 | 2019-06-05 | Hamilton Sundstrand Corporation | Increasing anti-corrosion through nanocomposite materials |
| CN108179418A (en) * | 2018-02-08 | 2018-06-19 | 广州超邦化工有限公司 | A kind of preparation method of zn-ni alloy deposits structure suitable under strong corrosive environment |
| CN109256256A (en) * | 2018-11-14 | 2019-01-22 | 烟台首钢磁性材料股份有限公司 | A kind of neodymium iron boron magnetic body and its preparation process of electroplating of Zn-Ni alloy onto surface |
| CN110205662A (en) * | 2019-06-27 | 2019-09-06 | 安徽鼎旺环保材料科技有限公司 | A kind of aluminium alloy surface electric plating preprocess method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104772946B (en) | Plate nickel chromium triangle part and its manufacture method | |
| CN105274545A (en) | Electroplating or chemical-plating pretreatment method of aluminum alloy and application of electroplating or chemical-plating pretreatment method | |
| CN104775142A (en) | Ultra-corrosion-resistant nickel-chromium plating component and manufacturing method thereof | |
| CN110219028A (en) | A kind of high blackness dumb light metal black composite deposite and preparation method thereof | |
| CN111058068A (en) | Processing technology of zinc-plated nickel alloy | |
| CN103510130B (en) | Trivalent hard chromium electro-plating method | |
| CN204625811U (en) | The super anti-corrosion nickel plating-chromium parts of multilayer | |
| CN102127758A (en) | Silver plating process on workpiece surface | |
| CN103898505B (en) | A kind of Electroless Ni-P alloy plating on magnesium alloy of pre-galvanized admiro | |
| CN110484940A (en) | A kind of light metal electro-plating method | |
| CN205556812U (en) | Compound plating layer structure of black chromium is electroplated to high corrosion resistance trivalent chromium | |
| CN205205231U (en) | Compound plating layer structure of ironcasting electro -galvanizing - nickel alloy | |
| CN218642831U (en) | Coating structure of black tin-nickel alloy of aluminum alloy piece plating gun | |
| CN107034464B (en) | A kind of preparation method of multifunctional protection layer | |
| CN204585986U (en) | Nickel plating-chromium parts | |
| CN202242780U (en) | Aluminum alloy hub product | |
| CN215481342U (en) | Coating structure for plating trivalent chromium black chromium and coating electrophoretic paint on aluminum alloy die casting | |
| CN102021635A (en) | Electroplate liquid, color coating formation method and metal part | |
| CN112813471B (en) | Green electroplating process for door and window hardware | |
| CN207918993U (en) | A kind of imitative golden composite plating layer structure of bright Zn-Ni alloy, high tin copper-tin alloy, ormolu | |
| CN205115644U (en) | High corrosion resistance's trivalent chromium chromium -plated layer structure | |
| CN210420210U (en) | Coating structure sealed by cyanide-free cadmium-titanium alloy and graphene of aerospace fastener | |
| CN101949043B (en) | Formulation for electroplating black rhodium layer and method thereof | |
| CN104775143A (en) | Multilayer ultra corrosion resistant nickel-chromium plating part and manufacturing method thereof | |
| CN204982090U (en) | Plating layer structure with high corrosion resistance and decorative |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191122 |
|
| RJ01 | Rejection of invention patent application after publication |