CN116497415A - Preparation method of electroplated high-strength zinc-nickel alloy - Google Patents
Preparation method of electroplated high-strength zinc-nickel alloy Download PDFInfo
- Publication number
- CN116497415A CN116497415A CN202310594991.XA CN202310594991A CN116497415A CN 116497415 A CN116497415 A CN 116497415A CN 202310594991 A CN202310594991 A CN 202310594991A CN 116497415 A CN116497415 A CN 116497415A
- Authority
- CN
- China
- Prior art keywords
- nickel alloy
- zinc
- strength zinc
- washing
- preparation
- 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
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910000990 Ni alloy Inorganic materials 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000005238 degreasing Methods 0.000 claims abstract description 14
- 238000005260 corrosion Methods 0.000 claims abstract description 12
- 230000007797 corrosion Effects 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000009713 electroplating Methods 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 24
- 238000000576 coating method Methods 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 3
- 239000012530 fluid Substances 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
-
- 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 invention relates to a preparation method of electroplated high-strength zinc-nickel alloy, in particular to a method for preparing high-strength zinc-nickel alloy by using steps of acid washing, hanging, electroplating zinc-nickel alloy and the like after pretreatment of chemical degreasing and electrochemical degreasing. The method has a number of advantages including high adhesion, high hardness, good corrosion resistance, wear resistance, etc. The invention also provides three examples of the method, including the use of copper, stainless steel and iron for preparation, suitable for use in various industrial fields. The steps of the method and several features of the article are specified in the claims for use in actual production.
Description
Technical Field
The invention relates to a preparation method of electroplated high-strength zinc-nickel alloy, in particular to a method for preparing high-strength zinc-nickel alloy by using steps of acid washing, hanging, electroplating zinc-nickel and the like after pretreatment of chemical degreasing and electrochemical degreasing.
Background
The high-strength zinc-nickel alloy coating has wide application in the fields of aviation, automobiles, buildings and the like due to the advantages of corrosion resistance, abrasion resistance, high hardness and the like. At present, the process for producing the high-quality zinc-nickel alloy coating still has a plurality of problems in industrial production, such as poor adhesive force, poor environmental protection and the like.
To solve these problems, the present invention provides a method for preparing an electroplated high strength zinc-nickel alloy, which employs a multi-step process to ensure the quality and stability of the coating.
Disclosure of Invention
The invention provides a preparation method of electroplated high-strength zinc-nickel alloy, which comprises the following steps:
raw material inspection: checking the workpiece to be plated to ensure that the workpiece to be plated meets the requirements;
chemical degreasing: immersing the workpiece to be plated in chemical oil removal liquid containing sodium hydroxide and a surfactant to remove dirt and grease on the surface of the workpiece to be plated;
washing with water for the first time: thoroughly flushing the workpiece to be plated with clear water to remove surface dirt remained by the chemical degreasing liquid;
electrochemical degreasing: placing the surface of a piece to be plated into electrochemical degreasing liquid containing sodium hydroxide and ethylenediamine tetraacetic acid, and removing impurities and oxides on the surface through electrolysis;
and (3) washing with water for the second time: thoroughly flushing the workpiece to be plated with clear water to remove surface dirt remained by the electrochemical degreasing liquid;
polishing: polishing the surface of the part to be plated with a suitable tool to obtain a smoother surface;
acid washing: immersing the surface of a piece to be plated in pickling solution containing hydrochloric acid and nitric acid to further remove dirt and oxide on the surface;
hanging: hanging the part to be plated on the electroplating bath so as to carry out the next operation;
electroplating zinc and nickel: applying current in the electroplating bath to enable zinc and nickel ions to deposit on the surface of the to-be-plated piece to form a zinc-nickel alloy coating;
and (3) washing with water for the third time: repeatedly washing with clear water to remove the residual electroplating agent;
and (3) drying: placing the electroplated part to be plated in a ventilated and dried place to ensure thorough drying;
and (3) detecting and packaging: and detecting the coating, and packaging after meeting the requirements.
The method for preparing the high-strength zinc-nickel alloy has a plurality of advantages:
the pretreatment step combines chemical degreasing and electrochemical degreasing, and effectively removes harmful substances such as dirt, grease, oxide and the like on the surface of the workpiece to be plated, thereby improving the adhesive force and stability of the zinc-nickel alloy.
The steps of acid washing, hanging, electroplating and the like are used, so that the quality and stability of the zinc-nickel alloy coating can be ensured. 3. The thickness and hardness of the coating can be adjusted by adopting specific technological parameters such as current density, temperature and the like, so that the zinc-nickel alloy coating with high strength meeting the requirements can be obtained. 4. The method is suitable for preparing copper, stainless steel, iron and other materials, and has wide application prospect.
Drawings
FIG. 1 is a schematic flow chart of a method for preparing an electroplated high-strength zinc-nickel alloy;
to better illustrate the invention, three examples are provided below:
embodiment one: the preparation was performed using stainless steel as a raw material. The zinc-nickel alloy coating with uniform surface, excellent corrosion resistance and high strength is obtained through the treatment of the steps.
Embodiment two: the preparation was carried out using iron as starting material. The zinc-nickel alloy coating with uniform surface, excellent corrosion resistance and high strength is obtained through the treatment of the steps. The thickness of the coating is 15-20 mu m, the hardness can reach 500-700HV, the coating has excellent corrosion resistance and abrasion resistance, and the coating is suitable for the fields of automobiles, ships, engineering machinery and the like.
Embodiment III: the preparation was carried out using copper as starting material. The zinc-nickel alloy coating with uniform surface, excellent corrosion resistance and high strength is obtained through the treatment of the steps. The coating has stable quality and meets the requirements of industrial standards.
Embodiment four: the preparation was carried out using copper as starting material. The zinc-nickel alloy coating with uniform surface, stable quality, strong corrosion resistance and excellent high-strength property is obtained through the treatment of the steps. The hardness of the obtained coating can reach 500-700HV, the thickness is 15-20 mu m, and the sample surface has no corrosion or abrasion sign after 500 hours of salt spray test and abrasion test. The coating is suitable for the fields of electronic equipment, automobiles, ships, buildings and the like.
Fifth embodiment: the preparation was performed using stainless steel as a raw material. The zinc-nickel alloy coating with uniform surface, stable quality, strong corrosion resistance and excellent high-strength property is obtained through the treatment of the steps. The hardness of the obtained coating can reach 500-700HV, the thickness is 15-20 mu m, and the sample surface has no corrosion or abrasion sign after 1000 hours of salt spray test and abrasion test. The coating is suitable for the fields of chemical industry, ocean, petroleum, medical treatment and the like.
In summary, the method for preparing the high-strength zinc-nickel alloy provided by the invention has a plurality of advantages, including high adhesion, high hardness, good corrosion resistance, abrasion resistance and the like. Meanwhile, the method has wide application range, is not limited by the type of materials, and can be used in various industrial fields.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A method of preparing a high strength zinc-nickel alloy comprising the steps of: a. checking raw materials; b. chemical degreasing; c. washing for the first time; d. electrochemical degreasing; e. washing with water for the second time; f. polishing; g. acid washing; h. hanging; i. electroplating zinc-nickel alloy; j. washing with water for the third time; k. drying; and I, detecting and packaging.
2. The method of claim 1, wherein the raw material is copper, stainless steel, or iron.
3. The method of claim 1, wherein the chemical degreasing fluid is a solution comprising sodium hydroxide and a surfactant.
4. The method of claim 1, wherein the electrochemical de-oiling liquid is a solution comprising sodium hydroxide and ethylenediamine tetraacetic acid.
5. The method of claim 1, wherein the pickling solution is a mixed solution comprising hydrochloric acid and nitric acid.
6. The method according to claim 1, wherein the current density in the plating bath is 2-10A/dm 2 。
7. A high strength zinc nickel alloy coating prepared by the method comprising the steps of claim 1.
8. The high strength zinc-nickel alloy coating according to claim 7, having a thickness of 15-20 μm, a hardness of 500-700HV, and excellent corrosion resistance and abrasion resistance.
9. The high strength zinc-nickel alloy coating according to claim 7, which is suitable for use in the fields of automobiles, ships, engineering machinery and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310594991.XA CN116497415A (en) | 2023-05-25 | 2023-05-25 | Preparation method of electroplated high-strength zinc-nickel alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310594991.XA CN116497415A (en) | 2023-05-25 | 2023-05-25 | Preparation method of electroplated high-strength zinc-nickel alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116497415A true CN116497415A (en) | 2023-07-28 |
Family
ID=87324800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310594991.XA Pending CN116497415A (en) | 2023-05-25 | 2023-05-25 | Preparation method of electroplated high-strength zinc-nickel alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116497415A (en) |
-
2023
- 2023-05-25 CN CN202310594991.XA patent/CN116497415A/en active Pending
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