CN107779919A - A kind of method of alkaline zinc plating - Google Patents
A kind of method of alkaline zinc plating Download PDFInfo
- Publication number
- CN107779919A CN107779919A CN201711050416.4A CN201711050416A CN107779919A CN 107779919 A CN107779919 A CN 107779919A CN 201711050416 A CN201711050416 A CN 201711050416A CN 107779919 A CN107779919 A CN 107779919A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- zinc plating
- alkaline zinc
- cleaned
- wash
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
- C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
-
- 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
-
- 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
Abstract
The present invention relates to anticorrosive metal field of surface engineering technique, and in particular to a kind of method of alkaline zinc plating, comprises the following steps：(1) oil removing degreasing：Including electrochemical deoiling and electrochemical degreasing；(2) oil removing raffinate is cleaned；(3) pickling；(4) alkaline zinc plating；(5) wash：Wash including cold water and cleaned with hydraulic giant；(6) light is soaked；(7) it is passivated；(8) washing include cold water wash, hydraulic giant clean and pure water is washed twice；(9) toast, using workpiece surface hardness made from the inventive method is big, Corrosion Protection is good.
Description
Technical field
The present invention relates to anticorrosive metal field of surface engineering technique, and in particular to a kind of method of alkaline zinc plating.
Background technology
It is zinc-plated to refer to plate one layer of zinc on the surface of metal, alloy or other materials to play the table of antirust, attractive in appearance etc.
Face treatment technology, zinc-plated mode have cold galvanizing, galvanizing, mechanical zinc-plating etc., and electrogalvanizing is also in wherein cold galvanizing, are to utilize electrolysis
Pipe fitting is put into the solution that composition is zinc salt by equipment after oil removing, pickling, washing, and connects the negative pole of electrolysis installation,
Zine plate is placed on the opposite of pipe fitting, and the positive pole for being connected to electrolysis installation switches on power, and is moved using orientation of the electric current from positive to negative pole
It is dynamic that one layer of zinc will be deposited on pipe fitting, but metal surface is attached with the dirts such as lubricating grease, greasy dirt, corrosion, it is necessary to carry out zinc-plated
Preposition processing, but the strong basicity degreasing agent used in existing zinc-plated preposition processing is difficult to clean, and causes workpiece to be combined not with zinc layers
Surely, and using existing galvanized method the workpiece surface hardness made is inadequate, Corrosion Protection is poor.
The content of the invention
It is an object of the invention to provide a kind of method of alkaline zinc plating, workpiece surface hardness made from this method is used
Greatly, Corrosion Protection is good.
The technical solution adopted by the present invention is as follows to achieve the above object：
A kind of method of alkaline zinc plating, comprises the following steps：
(1) oil removing degreasing：Remove workpiece surface greasy dirt and lipid impurities, including electrochemical deoiling and electrochemical degreasing；
(2) oil removing raffinate is cleaned：The degreaser of workpiece surface residual is cleaned, including hot water wash, cold water are washed and wiped
Wash；
(3) pickling：Will workpiece immerse 50% technical-grade hydrochloric acid solution in carry out pickling, remove workpiece surface rusty stain and
Oxide layer；
(4) alkaline zinc plating：Put the workpiece in and alkaline zinc plating is carried out in alkaline zinc plating groove, sodium hydroxide, light are added in plating solution
Bright dose, walk agent；
(5) wash：The zinc-plated raffinate of workpiece surface is removed, including cold water is washed and cleaned with hydraulic giant；
(6) light is soaked：Workpiece shakes leaching light in nitric acid groove, and using concentration, operating temperature is normal for 5% technical grade nitric acid
Temperature；
(7) it is passivated：Workpiece weak vibrations in groove, open the stirring of oil-free blower fan, and passivation includes trivalent chromium colorful passivation, three
Valency chrome blue white chromating, trivalent chrome black passive；
(8) wash：The passivation raffinate of workpiece surface is removed, including cold water is washed, hydraulic giant cleans and pure water is washed twice；
(9) toast：Workpiece is toasted in an oven.
Further, the degreaser of electrochemical deoiling is formed by low-phosphorous alkaline skimmed milk configuration in the step (1), and concentration is
6%-8%, degreaser temperature control is at 26-78 DEG C.
Further, the washing uses temperature as 40-50 DEG C of running water.
Brightener is with the addition of in galvanizing flux by the present invention and the agent that walks, and improves the brightness of zinc coat, increases zinc coat
Corrosion resistance, case hardness is improved, the agent that walks prevents high current area from burning, and improves covering power.
Embodiment
The present invention provides a kind of method of alkaline zinc plating, comprises the following steps：
1) oil removing degreasing：Remove workpiece surface greasy dirt and lipid impurities, including electrochemical deoiling and electrochemical degreasing；
Preferably, the degreaser of electrochemical deoiling is formed by the low-phosphorous alkaline skimmed milk configuration of XH-19A type normal temperature, and concentration is
5%-7%, degreaser temperature control is at 50-70 DEG C；The degreaser of electrochemical degreasing is by XH-95D type high current electrolytic degreasing powders
Configuration forms, and concentration 5%-7%, degreaser temperature control is at 60-80 DEG C.
2) oil removing raffinate is cleaned：The degreaser of workpiece surface residual is cleaned, including hot water wash, cold water are washed and wiped
Wash；
Preferably, hot water wash uses temperature cold water is washed using tap water at normal temperature for 40-80 DEG C of running water, and is flowing
Water, workpiece can be cleaned using yarn flannelette.
3) pickling：Workpiece is immersed in acid solution and carries out pickling, removes the rusty stain and oxide layer of workpiece surface；
Preferably, acid solution uses 50% technical-grade hydrochloric acid solution, and workpiece is immersed into pickling 20-60 in acid solution at normal temperatures
Second.
4) cold water is washed：The acid solution of workpiece surface residual is cleaned；
5) alkaline zinc plating：Put the workpiece in and alkaline zinc plating is carried out in alkaline zinc plating groove, sodium hydroxide, light are added in plating solution
Agent, walk agent；
Preferably, material used in zinc-plated include more than 99% sodium hydroxide, 136A brighteners, 136B walk agent,
Zine plate, 15ml, 136B containing 130 155g, 136A brightener of sodium hydroxide 10 walk agent 5-20ml in every liter of plating solution, plate zinc current
Control is controlled at 10-40 DEG C in every square decimeter of 2-4 ampere, operating temperature.
6) wash：The zinc-plated raffinate of workpiece surface is removed, including cold water is washed and cleaned with hydraulic giant；
7) light is soaked：Workpiece shakes leaching light in nitric acid groove, and using concentration, operating temperature is normal for 5% technical grade nitric acid
Temperature；
8) pure water is washed：Remove workpiece surface residual acid solution；
Preferably, pure water is washed using normal temperature pure water.
9) it is passivated：Workpiece weak vibrations in groove, open the stirring of oil-free blower fan, and passivation includes trivalent chromium colorful passivation, three
Valency chrome blue white chromating, trivalent chrome black passive；
Preferably, trivalent chromium colorful passivation is using A01-534C trivalent chromium coloured silk rolled tin film process agent configuration passivating solution, concentration
For 8%-12%, work pH value is 1.9-3.0, and operating temperature is 15-35 DEG C；Trivalent chromium blue-white passivation uses A01-439E tri-
The agent of valency chrome blue rolled tin film process configures passivating solution, and concentration 3%-7%, work pH value is 2.2-3.0, operating temperature 15-35
℃；Trivalent chrome black passive configures passivating solution, concentration 6%-10%, 4%-6% using SurTec690, and work pH value is
1.8-2.0, operating temperature are 20-40 DEG C, and the stirring of oil-free blower fan, workpiece weak vibrations in deactivation slot are opened during passivation.
10) wash：The passivation raffinate of workpiece surface is removed, including cold water is washed, hydraulic giant cleans and pure water is washed twice；
11) water is removed in blowing：The excessive moisture on workpiece is removed using hair-dryer and air gun；
12) toast：Workpiece is toasted in an oven；
Preferably, baking temperature is 60-80 DEG C, and baking time is 15-30 minutes.
13) examine：Examine whether workpiece outward appearance and zinc coating thickness reach requirement..
Described above is only the preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
The transformation and replacement that are carried out based on technical scheme provided by the present invention and inventive concept should all cover the protection model in the present invention
In enclosing.
Claims (3)
- A kind of 1. method of alkaline zinc plating, it is characterised in that comprise the following steps：(1) oil removing degreasing：Remove workpiece surface greasy dirt and lipid impurities, including electrochemical deoiling and electrochemical degreasing；(2) oil removing raffinate is cleaned：The degreaser of workpiece surface residual is cleaned, including hot water wash, cold water are washed and cleaned；(3) pickling：Workpiece is immersed in 50% technical-grade hydrochloric acid solution and carries out pickling, removes rusty stain and the oxidation of workpiece surface Layer；(4) alkaline zinc plating：Put the workpiece in and alkaline zinc plating carried out in alkaline zinc plating groove, in plating solution add sodium hydroxide, brightener, Walk agent；(5) wash：The zinc-plated raffinate of workpiece surface is removed, including cold water is washed and cleaned with hydraulic giant；(6) light is soaked：Workpiece shakes leaching light in nitric acid groove, and using concentration, operating temperature is normal temperature for 5% technical grade nitric acid；(7) it is passivated：Workpiece weak vibrations in groove, open the stirring of oil-free blower fan, and passivation includes trivalent chromium colorful passivation, trivalent chromium Blue and white passivation, trivalent chrome black passive；(8) wash：The passivation raffinate of workpiece surface is removed, including cold water is washed, hydraulic giant cleans and pure water is washed twice；(9) toast：Workpiece is toasted in an oven.
- 2. the method for alkaline zinc plating according to claim 1, it is characterised in that：Electrochemical deoiling is de- in the step (1) Fat liquid is formed by low-phosphorous alkaline skimmed milk configuration, and concentration 6%-8%, degreaser temperature control is at 26-78 DEG C.
- 3. the method for alkaline zinc plating according to claim 1, it is characterised in that：The washing uses temperature as 40-50 DEG C Running water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711050416.4A CN107779919A (en) | 2017-10-31 | 2017-10-31 | A kind of method of alkaline zinc plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711050416.4A CN107779919A (en) | 2017-10-31 | 2017-10-31 | A kind of method of alkaline zinc plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107779919A true CN107779919A (en) | 2018-03-09 |
Family
ID=61431941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711050416.4A Withdrawn CN107779919A (en) | 2017-10-31 | 2017-10-31 | A kind of method of alkaline zinc plating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107779919A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108396342A (en) * | 2018-03-29 | 2018-08-14 | 珠海市玛斯特五金塑胶制品有限公司 | Full-automatic galvanizing system and method |
| CN111074313A (en) * | 2019-12-31 | 2020-04-28 | 山东九佳紧固件股份有限公司 | Wheel bolt electroplating process |
| CN113308715A (en) * | 2020-07-14 | 2021-08-27 | 华业金属表面处理(五莲)有限公司 | Production process of alkaline electrogalvanizing |
| CN114808065A (en) * | 2022-03-15 | 2022-07-29 | 兴化市兆泰金属材料有限公司 | Galvanizing treatment process for improving steel adhesion capacity |
-
2017
- 2017-10-31 CN CN201711050416.4A patent/CN107779919A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108396342A (en) * | 2018-03-29 | 2018-08-14 | 珠海市玛斯特五金塑胶制品有限公司 | Full-automatic galvanizing system and method |
| CN111074313A (en) * | 2019-12-31 | 2020-04-28 | 山东九佳紧固件股份有限公司 | Wheel bolt electroplating process |
| CN113308715A (en) * | 2020-07-14 | 2021-08-27 | 华业金属表面处理(五莲)有限公司 | Production process of alkaline electrogalvanizing |
| CN114808065A (en) * | 2022-03-15 | 2022-07-29 | 兴化市兆泰金属材料有限公司 | Galvanizing treatment process for improving steel adhesion capacity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107779919A (en) | A kind of method of alkaline zinc plating | |
| CN105603349A (en) | Hot galvanizing process | |
| CN110369244A (en) | A kind of without phosphorus silane process of car body coating environmental protection pre-treatment | |
| CN108149179B (en) | Hot galvanizing production process for fastener | |
| CN103243338A (en) | Acid cleaning and phosphorizing method of electromobile frame | |
| KR102572078B1 (en) | Passivation Surface Treatment of Stainless Steel | |
| CN109897990A (en) | Hot-dip aluminum zinc Mg Alloy Coating steel plate and preparation method thereof | |
| CN103540968A (en) | Process method for electroplating nickel on aluminum-copper composite material component | |
| CN102206842A (en) | Manufacturing method of zinc/tin double-layer electroplated steel plate | |
| CN108486415A (en) | A kind of preparation method of steel plate and steel plate after dip galvanized aluminum magnesium plating solution and its hot-dip | |
| CN104480419A (en) | Plating method of low-aluminum hot-dipped Zn-Al-Mg-Si alloy coating | |
| CN101899635A (en) | Hot galvanizing method | |
| CN107142435A (en) | Power iron fitting hot dip galvanizing process | |
| CN107365954A (en) | A kind of hot dipping aluminium plating technology of hot-dip aluminizing fluxing agent and steel construction piece | |
| CN101619473B (en) | Method for galvanizing workpiece surface for anticorrosion | |
| CN105648378A (en) | Antirust heat treatment technology for spare parts | |
| CN110565036A (en) | hot-dip galvanizing production method for electric power iron tower connecting piece with uniform surface zinc layer thickness | |
| PL204280B1 (en) | Preparation of steel surfaces for single-dip aluminium-rich zinc galvanising | |
| CN104040027A (en) | Use of a solution containing sulphate ions for reducing the blackening or tarnishing of a metal sheet during the storage thereof and metal sheet treated with such a solution | |
| CN103741084B (en) | A kind of hot-dip multi-purpose type is without ammonium fluxing agent and using method thereof | |
| CN113862742A (en) | Metal galvanizing process applied to isolating switch | |
| CN106757229B (en) | A kind of electro-plating method | |
| JP2013151734A (en) | Electrogalvanized steel sheet for high image clarity coating substrate excellent in corrosion resistance after coating and enamel hair resistance, and method for producing the same | |
| CN107190287A (en) | A kind of plating solution and its electro-plating method for electroplating pearl nickel on stainless steel | |
| CN103358614A (en) | Steel sheet with stanniferous coating and preparation method thereof |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180309 |