CN110004469A - A kind of technique of the zinc-plated anti-foaming of metalwork - Google Patents
A kind of technique of the zinc-plated anti-foaming of metalwork Download PDFInfo
- Publication number
- CN110004469A CN110004469A CN201910421732.0A CN201910421732A CN110004469A CN 110004469 A CN110004469 A CN 110004469A CN 201910421732 A CN201910421732 A CN 201910421732A CN 110004469 A CN110004469 A CN 110004469A
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- CN
- China
- Prior art keywords
- workpiece
- zinc
- metalwork
- foaming
- technique
- 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.)
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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
- C25D3/22—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
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
Abstract
A kind of technique that the present invention discloses zinc-plated anti-foaming of metalwork, comprising the following steps: S1: workpiece first wash cleans workpiece with clear water；S2: hydrochloric acid activation, salt acid soak is for deoiling to workpiece surface, derusting and strip；S3: workpiece immersion is carried out electro-galvanized layer by electrogalvanizing in the plating solution；S4: second wash carries out washing removal Liquid Residue to the workpiece after the step S3.The present invention carries out electro-galvanized layer to workpiece surface in galvanizing flux using at a temperature of the voltage of 3-4V and 26-30 DEG C, and quality of coating is firm, reduces the generation of bubble and then reduces the defect that coating falls off, workpiece coating longer life expectancy and beautiful and generous.
Description
[technical field]
The invention belongs to metalwork technical field of surface, and in particular to a kind of technique of the zinc-plated anti-foaming of metalwork.
[background technique]
Zinc-plated is to plate the surface for the effects of one layer of zinc causes beauty, antirust on the surface of metal, alloy or other materials
Processing technique.In the coating bath for filling galvanizing flux, by clearing up the unplated piece with special pre-treatment as cathode, metal lining is used
Anode is made, two-stage is connect with the anode and cathode of DC power supply respectively.After energization, the technology ion in galvanizing flux is in potential difference
Under the action of be moved on cathode and form coating.The metal of anode forms metal ion and enters galvanizing flux, keeps plated metal
The concentration of ion.
In recent years, with the development of zincincation, the use of high-performance zinc-plating brightener is zinc-plated from simple anti-eye protection
Enter protection and decorative application.
The phenomenon that being easy to produce loose blistering after existing galvanized coatings, exposure be easy to produce in air fall off lack
It falls into, it is therefore desirable to which a kind of better galvanizing technique can make up for it these defects, improve the quality of coating.
[summary of the invention]
In order to solve existing issue present in background technique, the present invention provides a kind of work of zinc-plated anti-foaming of metalwork
The advantages that skill, process flow is simple, at low cost, quality of coating is firm, beautiful appearance.
The following technical solution is employed by the present invention:
A kind of technique of the zinc-plated anti-foaming of metalwork, which comprises the following steps:
S1: workpiece first wash cleans workpiece with clear water；
S2: hydrochloric acid activation, salt acid soak is for deoiling to workpiece surface, derusting and strip；
S3: workpiece immersion is carried out electro-galvanized layer by electrogalvanizing in the plating solution；
S4: second wash carries out washing removal Liquid Residue to the workpiece after the step S3.
Further, the concentration of hydrochloric acid in the step are as follows: 150-250g/L, immersion treatment time are 150s.
It further, include sodium hydroxide, concentration 125-140g/L, zinc ion concentration 9- in the step S3 plating solution
13g/L。
Further, temperature is regulated to 26-30 DEG C in the step S3, voltage 3-4V.
Beneficial effects of the present invention are as follows:
The present invention carries out electrogalvanizing to workpiece surface in galvanizing flux using at a temperature of the voltage of 3-4V and 26-30 DEG C
Layer, quality of coating is firm, reduces the generation of bubble and then reduces the defect that coating falls off, workpiece coating longer life expectancy and beauty
It sees generous.
[Detailed description of the invention]
Fig. 1 is process flow chart of the invention.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, accompanying drawings and embodiments are once combined, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not exclusively for the present invention.
A kind of technique of the zinc-plated anti-foaming of metalwork, comprising the following steps:
S1: workpiece first wash cleans workpiece with clear water；Workpiece will generally have residual after pre-treatment
There are oil or other impurities etc on the surface, carries out cleaning removal surface oil with clear water, preferably carry out next work
Sequence.
S2: hydrochloric acid activation, salt acid soak is for deoiling to workpiece surface, derusting and strip；After step S1, workpiece
Surface may also have the residual of oil, and workpiece has exposed long and can generate a thin layer of grey coating later in air, this
Although kind of coating is very thin but it can be attached on the surface of workpiece and influence whether that zinc ion is plated on workpiece surface, cause coating close
Collection property is inadequate, causes the effect of coating undesirable, and metalwork also will appear the phenomenon that getting rusty, and concentration is added are as follows: 150-
250g/L salt acid soak 150s, the effect for deoiling, derusting with strip are conducive to the effect for reinforcing coating.
S3: having concentration in galvanizing flux is the sodium hydroxide of 125-140g/L, zinc ion concentration 9-13g/L, by temperature control
System is at 26-30 DEG C, electroplating voltage 3-4V, if workpiece is stainless steel part or alloy components, the voltage of selection is than other ironworkers
The voltage of part wants lower, and by workpiece as cathode, metal lining connects with positive pole and cathode respectively as anode, two-stage
It connects, is moved on cathode under the action of potential difference and forms coating；It is thicker to be formed by coating, it is careful to crystallize, uniform and nothing
Hole, corrosion resistance are good；Resulting coating is purer, corrodes relatively slow, the husky part base of energy effective protection fastening in the fogs such as soda acid
Body, it is beautiful and generous, there is certain dicoration, since zinc coat has good ductility, cold punching can be carried out, rolled
The various moldings such as system, bending solve existing most of coating generation bubbles and cause the loose disengaging of coating without damaging coating
Defect substantially increases the service life of coating.
S4: the good workpiece of coating is subjected to second wash, removes the Liquid Residue of workpiece, the process post-processed.
The present invention has the advantages that
The present invention carries out electrogalvanizing to workpiece surface in galvanizing flux using at a temperature of the voltage of 3-4V and 26-30 DEG C
Layer, quality of coating is firm, reduces the generation of bubble and then reduces the defect that coating falls off, workpiece coating longer life expectancy and beauty
It sees generous.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence and essential feature without departing from its spirit
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (4)
1. a kind of technique of the zinc-plated anti-foaming of metalwork, which comprises the following steps:
S1: workpiece first wash cleans workpiece with clear water；
S2: hydrochloric acid activation, salt acid soak is for deoiling to workpiece surface, derusting and strip；
S3: workpiece immersion is carried out electro-galvanized layer by electrogalvanizing in the plating solution；
S4: second wash carries out washing removal Liquid Residue to the workpiece after the step S3.
2. a kind of technique of the zinc-plated anti-foaming of metalwork as described in claim 1, it is characterised in that: the hydrochloric acid in the step
Concentration are as follows: 150-250g/L, immersion treatment time are 150s.
3. a kind of technique of the zinc-plated anti-foaming of metalwork as described in claim 1, it is characterised in that: in the step S3 plating solution
Include sodium hydroxide, concentration 125-140g/L, zinc ion concentration 9-13g/L.
4. a kind of technique of the zinc-plated anti-foaming of metalwork as described in claim 1, it is characterised in that: temperature in the step S3
It is regulated to 26-30 DEG C, voltage 3-4V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910421732.0A CN110004469A (en) | 2019-05-21 | 2019-05-21 | A kind of technique of the zinc-plated anti-foaming of metalwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910421732.0A CN110004469A (en) | 2019-05-21 | 2019-05-21 | A kind of technique of the zinc-plated anti-foaming of metalwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110004469A true CN110004469A (en) | 2019-07-12 |
Family
ID=67177507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910421732.0A Pending CN110004469A (en) | 2019-05-21 | 2019-05-21 | A kind of technique of the zinc-plated anti-foaming of metalwork |
Country Status (1)
| Country | Link |
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| CN (1) | CN110004469A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0498436A2 (en) * | 1991-02-07 | 1992-08-12 | Sumitomo Metal Industries, Ltd. | Process for zinc electroplating of aluminum strip |
| CN1865517A (en) * | 2006-03-31 | 2006-11-22 | 江苏华达涂层有限公司 | Process for preparing cyanide-free alkaline zinc-electroplating anti-fingerprint rolled board |
| CN104264193A (en) * | 2014-10-14 | 2015-01-07 | 内江市东桐机械厂 | Cyanide-free electrogalvanizing method |
| CN105112924A (en) * | 2015-08-10 | 2015-12-02 | 温州市博克电子有限公司 | Surface treatment method for waterproof magnetic lock |
| CN106086952A (en) * | 2016-07-29 | 2016-11-09 | 重庆鹏雷汽车配件有限公司 | The rack plating method of trivalent coloured silk zinc |
-
2019
- 2019-05-21 CN CN201910421732.0A patent/CN110004469A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0498436A2 (en) * | 1991-02-07 | 1992-08-12 | Sumitomo Metal Industries, Ltd. | Process for zinc electroplating of aluminum strip |
| CN1865517A (en) * | 2006-03-31 | 2006-11-22 | 江苏华达涂层有限公司 | Process for preparing cyanide-free alkaline zinc-electroplating anti-fingerprint rolled board |
| CN104264193A (en) * | 2014-10-14 | 2015-01-07 | 内江市东桐机械厂 | Cyanide-free electrogalvanizing method |
| CN105112924A (en) * | 2015-08-10 | 2015-12-02 | 温州市博克电子有限公司 | Surface treatment method for waterproof magnetic lock |
| CN106086952A (en) * | 2016-07-29 | 2016-11-09 | 重庆鹏雷汽车配件有限公司 | The rack plating method of trivalent coloured silk zinc |
Non-Patent Citations (1)
| Title |
|---|
| 肖迎春等: "无氰碱性镀锌三价铬彩钝、蓝钝工艺及应用", 《材料保护》 * |
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| 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: 20190712 |
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| RJ01 | Rejection of invention patent application after publication |