CN112899767A - Electrolytic device and method for stripping electrotinning hanger - Google Patents
Electrolytic device and method for stripping electrotinning hanger Download PDFInfo
- Publication number
- CN112899767A CN112899767A CN202110377174.XA CN202110377174A CN112899767A CN 112899767 A CN112899767 A CN 112899767A CN 202110377174 A CN202110377174 A CN 202110377174A CN 112899767 A CN112899767 A CN 112899767A
- Authority
- CN
- China
- Prior art keywords
- electrolytic
- deplating
- hanger
- solution
- stripping
- 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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Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000243 solution Substances 0.000 claims abstract description 29
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000006259 organic additive Substances 0.000 claims abstract description 7
- 239000011259 mixed solution Substances 0.000 claims abstract description 4
- 238000005868 electrolysis reaction Methods 0.000 claims description 9
- 238000009713 electroplating Methods 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 238000007605 air drying Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 11
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 238000007747 plating Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F5/00—Electrolytic stripping of metallic layers or coatings
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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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses an electrolytic device and method for stripping of an electrotinning hanger, which comprises an electrolytic bath and a power supply, wherein negative plates are respectively arranged at two ends of the electrolytic bath, a hanger to be stripped is arranged between the negative plates, the negative plates are connected with the negative electrode of the power supply, the hanger to be stripped is connected with the positive electrode of the power supply, a stripping solution is filled in the electrolytic bath, and the stripping solution adopts a mixed solution of sulfuric acid and an organic additive NFJ. The invention adopts the electrolytic deplating process, does not generate nitrogen oxide harmful gas in the using process, has great significance to the health of personnel and the environmental protection, reduces the operation cost, reduces the deplating cost by about 50 percent, has simple wastewater treatment by replacing the chemical deplating solution, improves the service cycle of the deplating solution, and improves the service cycle of the electrolytic deplating solution by 40 to 60 percent compared with the service cycle of the chemical deplating solution.
Description
Technical Field
The invention relates to the technical field of stripping of electrotinning hangers, in particular to an electrolysis device and method for stripping of electrotinning hangers.
Background
At present, a chemical deplating method is adopted for deplating the hanger in a workshop, but the chemical deplating method has low efficiency and long deplating time. The untidy deplating of the stainless steel wire can occur, and a loose plating layer is generated. If the hanger is not completely removed in the rack plating process, the quality of the plating layer in the electroplating process is directly influenced. The hanger mainly plays a role in conducting, supporting and fixing parts in electroplating production, and the hanger is connected with the electrodes, so that current is uniformly transmitted to the parts for electroplating. In some cases, the uniform distribution of the coating is limited by the solution properties, which can also be compensated by means of a hanger. In the use process of the hanger, the co-deposition phenomenon of the coating of the hanger point can occur due to the action of current on the hanger and the product contact point, so that the thickness of the hanger contact point is gradually thickened, the electroplating quality is influenced, and the defects of large pollution, large harm to the body, low efficiency and the like exist in chemical deplating, so that the development of the electrolytic deplating process is imperative.
The present invention provides a new solution to this problem.
Disclosure of Invention
In view of the above situation, the present invention is directed to an electrolytic apparatus and method for stripping tin electroplating rack.
The technical scheme for solving the problem is as follows: the electrolytic device for stripping the electrotinning hanger comprises an electrolytic bath and a power supply, wherein negative plates are respectively arranged at two ends of the electrolytic bath, a hanger to be stripped is arranged between the negative plates, the negative plates are connected with a negative electrode of the power supply, the hanger to be stripped is connected with a positive electrode of the power supply, and stripping solution is filled in the electrolytic bath.
Preferably, the deplating solution adopts a mixed solution of sulfuric acid and an organic additive NFJ.
The electrolytic method of the electrolytic device for stripping the electroplated tin hanger comprises the following steps:
1) feeding: placing the hanger to be deplated into an electrolytic bath;
2) electrolytic deplating: adding the deplating solution into an electrolytic bath, and electrifying for electrolysis;
3) cleaning: the bath was submerged for 10 seconds using overflow water.
4) Air drying: and (4) drying the surface moisture of the equipment by using high-pressure airflow.
Preferably, the ratio of the deplating solution is as follows: sulfuric acid: 80-120G/L and 3-5 ml/L of organic additive NFJ.
Preferably, the electrolysis current density is 2-5A/dm 2.
Preferably, the electrolysis temperature is room temperature.
Through the technical scheme, the invention has the beneficial effects that:
1. the invention adopts the electrolytic deplating process, does not generate nitrogen oxide harmful gas in the using process, and has great significance for the health of people and the environmental protection.
2. The electrolytic deplating process reduces the operation cost, and the deplating cost is reduced by about 50 percent.
3. By replacing the chemical deplating solution, the invention has simple wastewater treatment, improves the service cycle of the deplating solution, and improves the service cycle of the electrolytic deplating solution by 40 to 60 percent compared with the service cycle of the chemical deplating solution.
Drawings
FIG. 1 is a schematic view of the electrolytic apparatus of the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The electrolytic device for stripping the electrotinning hanger comprises an electrolytic bath and a power supply, wherein negative plates are respectively arranged at two ends of the electrolytic bath, a hanger to be stripped is arranged between the negative plates, the negative plates are connected with a negative electrode of the power supply, the hanger to be stripped is connected with a positive electrode of the power supply, and stripping solution is filled in the electrolytic bath. Wherein the deplating solution adopts a mixed solution of sulfuric acid and an organic additive NFJ, and the NFJ is provided by Kunshan Longwei.
The electrolytic method of the electrolytic device for stripping the electroplated tin hanger comprises the following steps:
1) feeding: placing the hanger to be deplated into an electrolytic bath;
2) electrolytic deplating: adding the deplating solution into an electrolytic bath, and electrifying for electrolysis;
3) cleaning: the bath was submerged for 10 seconds using overflow water.
4) Air drying: and (4) drying the surface moisture of the equipment by using high-pressure airflow.
Wherein the ratio of the deplating solution is as follows: sulfuric acid: 80-120G/L, 3-5 ml/L of organic additive NFJ, 2-5A/dm2 of electrolytic current density and room temperature of electrolysis.
In order to highlight the advantages of the stripping process of the electrotinning hanger of the invention compared with the existing chemical stripping process, the hanger treated by the chemical stripping process and the product treated by the comparative electrolytic process are detected, and the detection results are shown in the following table.
1. Environmental and personnel impact:
2. analyzing the operation cost:
through the comparison of the data, the operation cost of the stripping process of the electrotinning hanger is reduced by 50 percent, and the electrolytic stripping adopts an inorganic acid stripping mode, so that no harmful gas of nitrogen oxide is generated in the use process, thereby effectively protecting the health of personnel and improving the operation environment. By replacing the chemical deplating solution, the invention has simple wastewater treatment, improves the service cycle of the deplating solution, and improves the service cycle of the electrolytic deplating solution by 40 to 60 percent compared with the service cycle of the chemical deplating solution.
The present invention has been described in further detail with reference to the embodiments, and it is not to be construed that the embodiments are limited thereto; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (6)
1. The utility model provides an electrolytic device for electrotinning hanger deplating, includes electrolysis trough and power, its characterized in that: the electrolytic bath is characterized in that negative plates are respectively arranged at two ends of the electrolytic bath, a to-be-deplated hanger is arranged between the negative plates, the negative plates are connected with the negative electrode of the power supply, the to-be-deplated hanger is connected with the positive electrode of the power supply, and a deplating solution is filled in the electrolytic bath.
2. The electrolytic device for stripping the tin electroplating hanger according to claim 1, wherein: the deplating solution adopts a mixed solution of sulfuric acid and an organic additive NFJ.
3. The electrolytic method of an electrolytic device for stripping of tin electroplating hangers according to claims 1 to 2, characterized in that: the method comprises the following steps:
1) feeding: placing the hanger to be deplated into an electrolytic bath;
2) electrolytic deplating: adding the deplating solution into an electrolytic bath, and electrifying for electrolysis;
3) cleaning: adopting overflow water for immersion washing for 10 seconds;
4) air drying: and (4) drying the surface moisture of the equipment by using high-pressure airflow.
4. The electrolytic process according to claim 3, characterized in that: the ratio of the deplating solution is as follows: sulfuric acid: 80-120G/L and 3-5 ml/L of organic additive NFJ.
5. The electrolytic process according to claim 4, characterized in that: the electrolytic current density is 2-5A/dm 2.
6. The electrolytic process according to claim 5, characterized in that: the electrolysis temperature is room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110377174.XA CN112899767A (en) | 2021-04-08 | 2021-04-08 | Electrolytic device and method for stripping electrotinning hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110377174.XA CN112899767A (en) | 2021-04-08 | 2021-04-08 | Electrolytic device and method for stripping electrotinning hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112899767A true CN112899767A (en) | 2021-06-04 |
Family
ID=76110255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110377174.XA Pending CN112899767A (en) | 2021-04-08 | 2021-04-08 | Electrolytic device and method for stripping electrotinning hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112899767A (en) |
-
2021
- 2021-04-08 CN CN202110377174.XA patent/CN112899767A/en active Pending
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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: 20210604 |
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| RJ01 | Rejection of invention patent application after publication |