CN113862742A - Metal galvanizing process applied to isolating switch - Google Patents
Metal galvanizing process applied to isolating switch Download PDFInfo
- Publication number
- CN113862742A CN113862742A CN202111149090.7A CN202111149090A CN113862742A CN 113862742 A CN113862742 A CN 113862742A CN 202111149090 A CN202111149090 A CN 202111149090A CN 113862742 A CN113862742 A CN 113862742A
- Authority
- CN
- China
- Prior art keywords
- metal piece
- metal
- parts
- acid
- tank
- 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
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
-
- 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
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
-
- 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
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
- C25D5/611—Smooth 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
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention relates to the technical field of galvanizing processes, in particular to a metal galvanizing process applied to an isolating switch, which comprises the following steps: cleaning grease substances on the surface of the metal piece, washing the surface of the metal piece by using a sodium chloride solution with the mass concentration of 5-10%, pickling with hydrochloric acid, collecting the hydrochloric acid, and circularly discharging the collected hydrochloric acid into a pickling tank, wherein the soaking temperature of the metal piece in the pickling tank is 40-50 ℃, and the soaking time is 1-1.5 h; putting the metal piece after acid pickling into a plating bath, and adopting a zinc chloride and ammonium chloride solution to mix and electroplate to form a salt film on the surface of the metal piece; and cooling and shaping after galvanization. The galvanization process of the invention can endow the isolating switch with better anti-corrosion capability, and meanwhile, the galvanized layer is tightly attached to the metal piece, so that the zinc coating is not easy to fall off in use, and the service life of the isolating switch is prolonged.
Description
Technical Field
The invention relates to the technical field of galvanizing processes, in particular to a metal galvanizing process applied to an isolating switch.
Background
The isolating switch is mainly used for reliably isolating a part needing power failure from a live part in the high-voltage distribution device so as to ensure the safety of maintenance work. The contacts of the isolating switch are completely exposed in the air, so that the conditions of corrosion and the like of the contacts can occur in long-time use, the isolating switch is not closed in place, surface oxidation is caused, contact resistance is increased, the contacts are partially overheated, damage to the isolating switch is further increased, short circuit and other phenomena can be caused seriously, and potential safety hazards are formed.
Therefore, it is necessary to further improve the contact of the disconnecting switch, improve the corrosion resistance of the contact, improve the mechanical performance of the contact, and prevent the contact from being deformed by an external force to cause the disconnecting switch to be opened or closed untight. In the prior art, a metal galvanizing process is mainly adopted to endow the isolating switch with corrosion resistance, but most galvanizing processes are passivated by chromate solution in order to reduce the chemical activity of zinc, so that a chromate conversion film layer is formed on the surface of a zinc layer, but with the enhancement of environmental awareness, a chromium-free passivation process replaces a chromium-containing passivation process to be a necessity, but the current chromium-free passivation process is not mature, so that a process capable of replacing the existing hexavalent chromium passivation is developed urgently.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a metal galvanizing process applied to an isolating switch, which can endow the isolating switch with better anti-corrosion capability, and meanwhile, a galvanizing layer is tightly attached to a metal piece and is not easy to fall off in use, so that the service life of the isolating switch is prolonged.
The purpose of the invention is realized by the following technical scheme:
a metal galvanizing process applied to a disconnecting switch comprises the following steps:
s1 sand blasting treatment: the metal piece is put into a sand blasting machine for sand blasting treatment to roughen the surface of the metal piece, so that zinc ions can be fused into the metal piece, and the metal piece can obtain a thicker zinc coating.
S2 pretreatment: putting the metal piece into a cleaning tank, adding an alkaline degreasing agent with the concentration of 4-10%, cleaning grease substances on the surface of the metal piece, keeping the water temperature at 40-50 ℃, treating for 0.5-1h, putting the metal piece after degreasing into the cleaning tank, and washing the surface of the metal piece by using a sodium chloride solution with the mass concentration of 5-10%;
s3 acid washing: putting the washed metal piece into a pickling tank, and pickling with hydrochloric acid, wherein the soaking temperature of the metal piece in the pickling tank is 40-50 ℃, and the soaking time is 1-1.5 h;
s4 acid liquor recovery: then introducing the residual acid solution after acid washing treatment into an evaporation tank, heating at the temperature of 100-110 ℃, heating for reflux, collecting hydrochloric acid, and circularly discharging the collected hydrochloric acid into an acid washing tank;
s5 film coating: putting the metal piece after acid pickling into a plating bath, and adopting a zinc chloride and ammonium chloride solution to mix and electroplate to form a salt film on the surface of the metal piece;
s6 galvanization: the metal piece with the salt film passes between the two insoluble anodes and then is connected with the cathode, electroplating solution containing metal ions is sprayed out from the injection nozzle, the metal ions in the electroplating solution are deposited on the metal piece under the action of an electric field between the anode and the cathode to form a plating layer, and the temperature of the electroplating solution is kept between 450 ℃ and 510 ℃;
separating excessive zinc slag on the surface by an S7 centrifugal machine: after the metal piece is moved out of the aqueduct, the metal piece is put into a centrifugal machine when the zinc slag on the surface is not completely solidified, and the centrifugal machine is started to throw out the redundant zinc slag on the surface, so that the zinc layer on the surface of the metal piece is smooth and beautiful.
S8, cooling: and subsequently placing the metal piece in a cold water tank, and cooling and shaping by using softened water with the water temperature lower than 40 ℃.
Further, the alkaline degreasing agent in step S1 is formed by mixing sodium phosphate dodecahydrate and sodium metaphosphate.
Further, the electroplating solution comprises the following raw materials in parts by weight:
50-55 parts of zinc chloride;
43-50 parts of ammonium chloride;
2-15 parts of alkaline earth metal salt;
2-5 parts of manganese chloride;
2-5 parts of nickel chloride.
Further, the thickness of the salt film in the step S5 is 240-580mg/m2。
Further, the thickness of the plating layer in the step S6 is 0.2-1.5 mm.
Further, the current density of the metal ions during the electroplating in the step S6 is 22-45A/dm2。
The invention has the beneficial effects that:
(1) the proportion of zinc chloride adopted by the electroplating solution can ensure that the galvanized metal piece has better coverage rate, can prevent the product from being oxidized in a dry environment, and simultaneously can remove residual rust during the galvanizing process by controlling the proportion of ammonium chloride so as to obtain better etching effect and avoid forming black spots. The alkaline earth metals used in the plating bath, when used in the form of salts, improve the activity of the molten salt, while the synergistic effect of manganese chloride and nickel chloride further improves the wettability of the metal parts.
(2) According to the invention, the film coating treatment is carried out before the galvanization, a salt film is added, so that the metal piece can be prevented from being in direct contact with the zinc liquid, elements such as silicon or manganese in the metal piece are prevented from entering the zinc liquid to influence the galvanization effect, impurities brought into the zinc liquid are reduced, the adhesiveness of the zinc layer is effectively improved, and the phenomenon of coating falling off is reduced.
(3) After degreasing treatment by using the alkaline degreasing agent, the surface of the metal member is washed by using a sodium chloride solution, so that the compactness of the surface of the metal member is improved; the alkaline degreasing agent is prepared by mixing sodium phosphate dodecahydrate and sodium metaphosphate, so that the permeability on the surface of the metal part is improved, and the degreasing capability on the surface of the metal part is improved; meanwhile, the binding force between the zinc coating and the surface of the metal piece is also improved.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following specific examples, but the scope of the present invention is not limited to the following.
Example 1
S1 sand blasting treatment: firstly, placing a metal piece into a sand blasting machine for sand blasting treatment;
s2 pretreatment: putting the metal piece into a cleaning tank, adding a mixed solution of sodium phosphate dodecahydrate and sodium metaphosphate with the concentration of 4%, cleaning grease substances on the surface of the metal piece, keeping the water temperature at 40 ℃, treating for 0.5h, putting the metal piece after degreasing treatment into the cleaning tank, and cleaning the surface of the metal piece by using a sodium chloride solution with the mass concentration of 5%;
s3 acid washing: placing the washed metal piece into a pickling tank, and pickling with hydrochloric acid, wherein the soaking temperature of the metal piece in the pickling tank is 40 ℃, and the soaking time is 1 h;
s4 acid liquor recovery: then introducing the residual acid liquor after acid washing treatment into an evaporation tank, heating at 100 ℃, heating for reflux, collecting hydrochloric acid, and circularly discharging the collected hydrochloric acid into an acid washing tank;
s5 film coating: putting the metal piece after acid cleaning into a plating bath, and adopting zinc chloride and ammonium chloride solution to mix and electroplate to form a salt film on the surface of the metal piece, wherein the thickness of the salt film is 240mg/m2；
S6 galvanization: passing the metal member with salt film between two insoluble anodes, connecting with cathode, spraying electroplating solution containing metal ions from injection nozzle, depositing the metal ions on the metal member under the action of electric field between the anodes and the cathode to form a coating with thickness of 0.2mm, maintaining the temperature of the electroplating solution at 450 deg.C, and controlling the current density of the metal ions at 22A/dm2(ii) a Wherein the electroplating solution comprises the following raw materials in parts by weight: 50 parts of zinc chloride; 43 parts of ammonium chloride; 2 parts of alkaline earth metal salt; 2 parts of manganese chloride; 2 parts of nickel chloride.
Separating excessive zinc slag on the surface by an S7 centrifugal machine: after the metal piece is moved out of the aqueduct, the metal piece is put into a centrifugal machine when the zinc slag on the surface is not completely solidified, and the centrifugal machine is started to throw out the redundant zinc slag on the surface, so that the zinc layer on the surface of the metal piece is smooth and beautiful.
S8, cooling: after galvanization, the metal piece is placed in a cold water tank and is cooled and shaped by softened water with the water temperature lower than 40 ℃.
Example 2
S1 sand blasting treatment: firstly, placing a metal piece into a sand blasting machine for sand blasting treatment;
s2 pretreatment: putting the metal piece into a cleaning tank, adding a mixed solution of sodium phosphate dodecahydrate and sodium metaphosphate with the concentration of 7%, cleaning grease substances on the surface of the metal piece, keeping the water temperature at 45 ℃, treating for 0.7h, putting the metal piece after degreasing treatment into the cleaning tank, and cleaning the surface of the metal piece by using a sodium chloride solution with the mass concentration of 7%;
s3 acid washing: putting the washed metal piece into a pickling tank, and pickling with hydrochloric acid, wherein the soaking temperature of the metal piece in the pickling tank is 45 ℃, and the soaking time is 1.2 h;
s4 acid liquor recovery: then introducing the residual acid liquor after acid washing treatment into an evaporation tank, heating at 105 ℃, heating for refluxing, collecting hydrochloric acid, and circularly discharging the collected hydrochloric acid into an acid washing tank;
s5 film coating: putting the metal piece after acid pickling into a plating bath, and adopting zinc chloride and ammonium chloride solution to mix and electroplate to form a salt film on the surface of the metal piece, wherein the thickness of the salt film is 360mg/m2；
S6 galvanization: passing the metal member with salt film between two insoluble anodes, connecting with cathode, spraying electroplating solution containing metal ions from injection nozzle, depositing the metal ions on the metal member under the action of electric field between the anodes and the cathode to form a coating with thickness of 0.8mm, maintaining the temperature of the electroplating solution at 487 deg.C, and controlling the current density of metal ions at 29A/dm2(ii) a Wherein the electroplating solution comprises the following raw materials in parts by weight: 52 parts of zinc chloride; 48 parts of ammonium chloride; 12 parts of alkaline earth metal salt; 4 parts of manganese chloride; 3 parts of nickel chloride.
Separating excessive zinc slag on the surface by an S7 centrifugal machine: after the metal piece is moved out of the aqueduct, the metal piece is put into a centrifugal machine when the zinc slag on the surface is not completely solidified, and the centrifugal machine is started to throw out the redundant zinc slag on the surface, so that the zinc layer on the surface of the metal piece is smooth and beautiful.
S8, cooling: after galvanization, the metal piece is placed in a cold water tank and is cooled and shaped by softened water with the water temperature lower than 40 ℃.
Example 3
S1 sand blasting treatment: firstly, placing a metal piece into a sand blasting machine for sand blasting treatment;
s2 pretreatment: putting a metal piece into a cleaning tank, adding a mixed solution of sodium phosphate dodecahydrate and sodium metaphosphate with the concentration of 10%, cleaning grease substances on the surface of the metal piece, keeping the water temperature at 50 ℃, treating for 1h, putting the metal piece after degreasing treatment into the cleaning tank, and cleaning the surface of the metal piece by using a sodium chloride solution with the mass concentration of 10%;
s3 acid washing: placing the washed metal piece into a pickling tank, and pickling with hydrochloric acid, wherein the soaking temperature of the metal piece in the pickling tank is 50 ℃, and the soaking time is 1.5 h;
s4 acid liquor recovery: then introducing the residual acid liquor after acid washing treatment into an evaporation tank, heating at the temperature of 110 ℃, heating for reflux, collecting hydrochloric acid, and circularly discharging the collected hydrochloric acid into an acid washing tank;
s5 film coating: putting the metal piece after acid cleaning into a plating bath, and adopting zinc chloride and ammonium chloride solution to mix and electroplate to form a salt film on the surface of the metal piece, wherein the thickness of the salt film is 580mg/m2；
S6 galvanization: passing the metal member with salt film between two insoluble anodes, connecting with cathode, spraying electroplating solution containing metal ions from injection nozzle, depositing metal ions in the electroplating solution on the metal member under the action of electric field between the anodes and the cathode to form a coating with thickness of 1.5mm, maintaining the temperature of the electroplating solution at 510 deg.C, and controlling the current density of metal ions at 45A/dm2(ii) a Wherein the electroplating solution comprises the following raw materials in parts by weight: 55 parts of zinc chloride; 50 parts of ammonium chloride; 15 parts of alkaline earth metal salt; 5 parts of manganese chloride; 5 parts of nickel chloride.
Separating excessive zinc slag on the surface by an S7 centrifugal machine: after the metal piece is moved out of the aqueduct, the metal piece is put into a centrifugal machine when the zinc slag on the surface is not completely solidified, and the centrifugal machine is started to throw out the redundant zinc slag on the surface, so that the zinc layer on the surface of the metal piece is smooth and beautiful.
S8, cooling: after galvanization, the metal piece is placed in a cold water tank and is cooled and shaped by softened water with the water temperature lower than 40 ℃.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A metal galvanizing process applied to a disconnecting switch is characterized by comprising the following steps:
s1 sand blasting treatment: firstly, placing a metal piece into a sand blasting machine for sand blasting treatment;
s2 pretreatment: putting the metal piece into a cleaning tank, adding an alkaline degreasing agent with the concentration of 4-10%, cleaning grease substances on the surface of the metal piece, keeping the water temperature at 40-50 ℃, treating for 0.5-1h, putting the metal piece after degreasing into the cleaning tank, and washing the surface of the metal piece by using a sodium chloride solution with the mass concentration of 5-10%;
s3 acid washing: putting the washed metal piece into a pickling tank, and pickling with hydrochloric acid, wherein the soaking temperature of the metal piece in the pickling tank is 40-50 ℃, and the soaking time is 1-1.5 h;
s4 acid liquor recovery: introducing the residual acid solution after acid washing treatment into an evaporation tank, heating at the temperature of 100-110 ℃, heating for reflux, collecting hydrochloric acid, and circularly discharging the collected hydrochloric acid into an acid washing tank;
s5 film coating: putting the metal piece after acid pickling into a plating bath, and adopting a zinc chloride and ammonium chloride solution to mix and electroplate to form a salt film on the surface of the metal piece;
s6 galvanization: the metal piece with the salt film passes between the two insoluble anodes and then is connected with the cathode, electroplating solution containing metal ions is sprayed out from the injection nozzle, the metal ions in the electroplating solution are deposited on the metal piece under the action of an electric field between the anode and the cathode to form a plating layer, and the temperature of the electroplating solution is kept between 450 ℃ and 510 ℃;
separating excessive zinc slag on the surface by an S7 centrifugal machine: after the metal piece is moved out of the aqueduct, the metal piece is placed into a centrifugal machine when the surface zinc slag is not completely solidified, and the centrifugal machine is started to throw out the surface zinc slag;
s8, cooling: and subsequently placing the metal piece in a cold water tank, and cooling and shaping by using softened water with the water temperature lower than 40 ℃.
2. The process of claim 1, wherein the alkaline degreasing agent in step S1 is a mixture of sodium phosphate dodecahydrate and sodium metaphosphate.
3. The metal galvanizing process applied to the isolating switch as claimed in claim 1, wherein the electroplating solution comprises the following raw materials in parts by weight:
50-55 parts of zinc chloride;
43-50 parts of ammonium chloride;
2-15 parts of alkaline earth metal salt;
2-5 parts of manganese chloride;
2-5 parts of nickel chloride.
4. The process of claim 1, wherein the thickness of the brine film in step S5 is 240-580mg/m2。
5. The galvanization process of claim 1, wherein the thickness of the plated layer in step S6 is 0.2-1.5 mm.
6. The process of galvanizing the metal for the disconnecting switch according to claim 1 or 4, wherein the current density of the metal ions during the electroplating in the step S6 is 22-45A/dm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111149090.7A CN113862742A (en) | 2021-09-29 | 2021-09-29 | Metal galvanizing process applied to isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111149090.7A CN113862742A (en) | 2021-09-29 | 2021-09-29 | Metal galvanizing process applied to isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113862742A true CN113862742A (en) | 2021-12-31 |
Family
ID=78992449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111149090.7A Pending CN113862742A (en) | 2021-09-29 | 2021-09-29 | Metal galvanizing process applied to isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113862742A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116460164A (en) * | 2023-05-06 | 2023-07-21 | 无锡市时捷钢绳有限公司 | Low-loss long-service-life steel wire rope and processing technology thereof |
| CN117165885A (en) * | 2023-10-31 | 2023-12-05 | 天津华源时代金属制品有限公司 | Plating assisting tank for steel wire galvanization |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112609A (en) * | 2014-07-21 | 2014-10-22 | 南通万德科技有限公司 | Arc ablation resistance switch contact and production method thereof |
| CN107557709A (en) * | 2017-08-23 | 2018-01-09 | 江苏国电新能源装备有限公司 | A kind of environment-friendly type zincincation |
-
2021
- 2021-09-29 CN CN202111149090.7A patent/CN113862742A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112609A (en) * | 2014-07-21 | 2014-10-22 | 南通万德科技有限公司 | Arc ablation resistance switch contact and production method thereof |
| CN107557709A (en) * | 2017-08-23 | 2018-01-09 | 江苏国电新能源装备有限公司 | A kind of environment-friendly type zincincation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116460164A (en) * | 2023-05-06 | 2023-07-21 | 无锡市时捷钢绳有限公司 | Low-loss long-service-life steel wire rope and processing technology thereof |
| CN116460164B (en) * | 2023-05-06 | 2024-04-19 | 无锡市时捷钢绳有限公司 | Low-loss long-service-life steel wire rope and processing technology thereof |
| CN117165885A (en) * | 2023-10-31 | 2023-12-05 | 天津华源时代金属制品有限公司 | Plating assisting tank for steel wire galvanization |
| CN117165885B (en) * | 2023-10-31 | 2024-02-13 | 天津华源时代金属制品有限公司 | Plating assisting tank for steel wire galvanization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113862742A (en) | Metal galvanizing process applied to isolating switch | |
| CN108060442B (en) | Method for preparing zinc-copper composite coating on surface of copper-aluminum composite busbar | |
| CN102206842B (en) | Manufacturing method of zinc/tin double-layer electroplated steel plate | |
| CN101899635A (en) | Hot galvanizing method | |
| CN104005063A (en) | Method for electroplating zinc and nickel alloy on steel work | |
| CN111778532A (en) | Alkaline zinc-nickel electroplating method for lock ring and embedded ring of automobile fuel tank | |
| CN105951150A (en) | Surface treatment process for aluminum plate | |
| CN107779919A (en) | A kind of method of alkaline zinc plating | |
| CN102268699A (en) | Method for removing anode slime of porous anode | |
| CN109457280A (en) | A kind of process of electrogalvanizing | |
| CN101693993B (en) | Phosphorization processing liquid for surface of carbon steel and nickel plating enclosure method | |
| CN101255581B (en) | Alkaline chloride galvanizing agent and preparation method thereof | |
| CN112725855A (en) | Preparation method of high-bonding-force high-corrosion-resistance coating on surface of neodymium iron boron magnet | |
| CN113493880A (en) | Ultra-low-lead cold-rolled electrotinning steel plate and manufacturing method thereof | |
| CN103358614A (en) | Steel sheet with stanniferous coating and preparation method thereof | |
| CN105369258A (en) | Surface corrosion treating technology for metal part | |
| CN103088358B (en) | Surface treatment method before water electrolysis pole plate plating | |
| CN112626434A (en) | Preparation process of power insulator iron cap | |
| CN113818014A (en) | Surface brightening treatment process for black nickel product | |
| CN112522652A (en) | Plating assistant agent for hot dip plating of zinc-aluminum-magnesium alloy or zinc-aluminum-magnesium rare earth alloy | |
| CN108048889B (en) | Surface treatment process of copper-aluminum bimetallic material | |
| CN102041490B (en) | Process for electronickelling chemical plating roll surface of inner cavity of water-cooling roll of cold-rolled sheet hot galvanizing production line | |
| JPH0121234B2 (en) | ||
| CN112853247B (en) | Surface treatment process of anti-corrosion fastener | |
| CN114657616B (en) | Copper plating process for stainless steel |
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 |