CN118241271A - Electroplating preparation method of Ni-Zn-Re alloy - Google Patents
Electroplating preparation method of Ni-Zn-Re alloy Download PDFInfo
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- CN118241271A CN118241271A CN202211656084.5A CN202211656084A CN118241271A CN 118241271 A CN118241271 A CN 118241271A CN 202211656084 A CN202211656084 A CN 202211656084A CN 118241271 A CN118241271 A CN 118241271A
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- 229910000691 Re alloy Inorganic materials 0.000 title claims abstract description 45
- 238000009713 electroplating Methods 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000007747 plating Methods 0.000 claims abstract description 65
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims abstract description 31
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 17
- -1 nickel zinc rhenium Chemical compound 0.000 claims abstract description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 21
- 238000005238 degreasing Methods 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 12
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 11
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 11
- 239000004327 boric acid Substances 0.000 claims description 11
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 claims description 11
- 229940081974 saccharin Drugs 0.000 claims description 11
- 235000019204 saccharin Nutrition 0.000 claims description 11
- 239000000901 saccharin and its Na,K and Ca salt Substances 0.000 claims description 11
- KERTUBUCQCSNJU-UHFFFAOYSA-L nickel(2+);disulfamate Chemical compound [Ni+2].NS([O-])(=O)=O.NS([O-])(=O)=O KERTUBUCQCSNJU-UHFFFAOYSA-L 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 6
- 239000011592 zinc chloride Substances 0.000 claims description 6
- 235000005074 zinc chloride Nutrition 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 4
- 230000007797 corrosion Effects 0.000 abstract description 16
- 238000005260 corrosion Methods 0.000 abstract description 16
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 abstract description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052725 zinc Inorganic materials 0.000 abstract description 6
- 239000011701 zinc Substances 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000007781 pre-processing Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 19
- 229910045601 alloy Inorganic materials 0.000 description 15
- 239000000956 alloy Substances 0.000 description 15
- 239000000758 substrate Substances 0.000 description 14
- 229910018605 Ni—Zn Inorganic materials 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 229910052702 rhenium Inorganic materials 0.000 description 4
- 238000009210 therapy by ultrasound Methods 0.000 description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000861 blow drying Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000001453 impedance spectrum Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 239000003870 refractory metal Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910007567 Zn-Ni Inorganic materials 0.000 description 1
- 229910007614 Zn—Ni Inorganic materials 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 238000000724 energy-dispersive X-ray spectrum Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910002058 ternary alloy Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention discloses a plating preparation method of Ni-Zn-Re alloy, which comprises the following steps of firstly, preprocessing a base material; preparing Ni-Zn-Re alloy electroplating solution; step three, electroplating: the nickel plate is used as an anode for nickel preplating, the pretreated base material is used as a cathode, the base material is placed in a nickel preplating plating solution for direct current constant current electroplating to obtain a layer of thinner nickel plating layer, the zinc plate is used as an anode for nickel zinc rhenium electroplating, the pretreated base material is used as a cathode, and the base material is placed in a Ni-Zn-Re alloy plating solution for direct current constant current electroplating to obtain the Ni-Zn-Re alloy plating layer. The invention adopts two steps of nickel pre-plating and composite plating, and solves the problems of loose plating layer, poor binding force and the like. The rhenium element is introduced into the coating, so that on one hand, the pores of the coating can be filled, the compactness of the coating is increased, and on the other hand, the corrosion resistance of the coating can be obviously improved.
Description
Technical Field
The invention relates to the field of electroplating, in particular to an electroplating preparation method of Ni-Zn-Re alloy.
Background
In recent years, zinc plating has wide application in corrosion prevention of steel, and the zinc plating is generally required to have better corrosion resistance and wear resistance in industry so as to prolong the service life of the zinc plating, reduce the cost and increase the economic benefit. Alloy electroplating is commonly used for improving corrosion resistance and mechanical properties, and patent CN201110117600.2 proposes a method for electroplating a Zn-Ni alloy coating and provides a formula of chromium-free passivation solution, so that the corrosion resistance of steel materials is obviously improved; patent CN201010559695.9 proposes a method for electroplating Zn-Ti alloy by using ionic liquid, which is used for overcoming the defects of complex operation, large corrosion to equipment and the like of a hot dip plating method, and obtaining an alloy plating layer with better quality, higher current efficiency and better corrosion resistance. However, the incorporation of refractory metal elements in zinc coatings is rarely reported. Alloys of refractory metals (W, mo, re) with iron group metals (Fe, co, ni) have valuable physicochemical and mechanical properties that provide conditions for the wide use of these materials in industry. The alloys have strong corrosion resistance, durability and heat resistance in severe environments, wherein the performance of the rhenium alloy is the most excellent, so that the corrosion resistance of the plating layer can be greatly improved by introducing rhenium element into the zinc plating layer, but the Ni-Zn-Re ternary alloy is electroplated. But no related patent or paper report has been seen.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a plating preparation method of Ni-Zn-Re alloy, which is used for preparing a Ni-Zn-Re alloy plating layer with stronger corrosion resistance in a citric acid system, reducing the loss of a galvanized layer under some special applications and enhancing the protective performance on steel.
The technical purpose of the invention is realized by the following technical scheme:
The electroplating preparation method of the Ni-Zn-Re alloy comprises the following steps:
Step 1, taking a nickel plate as an anode for nickel preplating, taking a base material as a cathode, and placing the base material in a nickel preplating plating solution for direct current constant current electroplating to obtain a layer of thinner nickel plating, wherein the current for nickel preplating is 2-3A/dm 2, the electroplating time is 3-5 min, and the temperature is 50-60 ℃; in the nickel pre-plating solution, 145-146 g/L nickel sulfamate, 30g/L boric acid, 5g/L nickel chloride, saccharin 1g/L and sodium dodecyl sulfate 0.05-0.1g/L;
In step 1, stirring, such as 100-200rpm, is required during electroplating; and (5) after electroplating, washing with water and drying to obtain a thinner nickel coating.
In step 1, the substrate is pretreated: the substrate is polished and activated, the surface oxide layer is removed, polished, degreased, activated by 12wt% dilute sulfuric acid, washed by distilled water and dried.
In the step 1, the base material is iron or steel with any shape, the degreasing solution is used for degreasing, the degreasing solution is 100-120g/l sodium hydroxide aqueous solution, the degreasing temperature is 60-65 ℃, and the treatment time is 8-10min.
In the step 1, 145.3-145.5 g/L nickel sulfamate, 30g/L boric acid, 5g/L nickel chloride, saccharin 1g/L and sodium dodecyl sulfate 0.08-0.1g/L are in the nickel pre-plating solution.
In step 1, the temperature is 55-60 ℃.
Step 2, taking a nickel plate as an anode for nickel zinc rhenium electroplating, taking the nickel-plated base material in step 1 as a cathode, placing the nickel-plated base material in Ni-Zn-Re alloy plating solution, and carrying out direct current constant current electroplating to obtain a Ni-Zn-Re alloy plating layer, wherein the current for electroplating the Ni-Zn-Re alloy is 3-4A/dm 2, the electroplating time is 25-30min, and the temperature is 65-75 ℃; in the Ni-Zn-Re alloy plating solution, 77-78 g/L of nickel sulfamate, 65g/L of zinc chloride, 3g/L of boric acid, 1g/L of saccharin, 0.05-0.1g/L of sodium dodecyl sulfate and 50g/L of citric acid.
In step 2, stirring, such as 100-200rpm, is required during electroplating; and (5) after electroplating, washing with water and drying to obtain the Ni-Zn-Re alloy coating.
In the step 2, in the Ni-Zn-Re alloy plating solution, 77-77.5 g/L of nickel sulfamate, 65g/L of zinc chloride, 3g/L of boric acid, 1g/L of saccharin, 0.08-0.1g/L of sodium dodecyl sulfate and 50g/L of citric acid are added.
In step 2, the temperature is 65-70 ℃.
The invention adopts two steps of nickel pre-plating and composite plating, and mainly aims to solve the problems of loose plating layer, poor binding force and the like. Saccharin is selected as a brightening agent, sodium dodecyl sulfate is selected as a surfactant, citric acid is selected as a complexing agent, and rhenium element is introduced into the coating, so that on one hand, the pores of the coating can be filled, the compactness of the coating is increased, and on the other hand, the corrosion resistance of the coating can be obviously improved. Compared with the prior art, the invention has the following advantages: (1) The invention has simple process, easy waste liquid treatment, high safety coefficient and environmental protection; (2) The invention improves the compactness of the plating layer by introducing rhenium. The alloy plating layer prepared by the method has the advantages of flat surface, good corrosion resistance and long service life, and can better protect steel.
Drawings
FIG. 1 is a photograph of the surface morphology of a Ni-Zn-Re alloy plating layer prepared according to the present invention and a comparative Ni-Zn alloy plating layer, wherein (a) is a photograph of the surface morphology of the Ni-Zn alloy plating layer and (b) is a photograph of the surface morphology of the Ni-Zn-Re alloy plating layer.
FIG. 2 is an EDS spectrum and a bar chart of an Ni-Zn-Re alloy electroplated layer prepared by the invention.
FIG. 3 is a polarization curve and an impedance spectrum of the Ni-Zn-Re alloy plating layer prepared by the present invention and the comparative Ni-Zn alloy plating layer.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to specific embodiments and attached drawings.
Examples
(1) Treatment of the substrate: a low-carbon steel plate with the length of 20mm, the width of 15mm and the thickness of 2mm is taken and sequentially polished by water-grinding sand paper with the lengths of 400# and 600# and 800# and 1000# and 1500# to remove oxide skin on the surface of a substrate, and the surface has certain roughness, thereby being beneficial to nucleation of electrodeposition. Preparing degreasing liquid (namely aqueous solution) for degreasing treatment, wherein the degreasing formula comprises 10g/l sodium hydroxide and 25g/l sodium carbonate, and placing the substrate into the degreasing liquid at 65 ℃ for soaking for 10min. Then put into alcohol for ultrasonic treatment, and after blow-drying, the substrate is immersed in 12wt% dilute sulfuric acid for activation for 3-5s. And putting the substrate into alcohol for ultrasonic treatment, and then drying for standby.
(2) Preparation of electroplating solution
Pre-plating solution: after 58.12g of nickel sulfamate, 12g of boric acid and 2g of nickel chloride were dissolved in 400ML of water, 0.4g of saccharin and 0.04g of sodium dodecyl sulfate were added thereto, and the mixture was stirred and dissolved, and stirred at 1500rmp for 24 hours.
Composite plating solution: 31g of nickel sulfamate, 26g of zinc chloride and 1.2g of boric acid are taken and dissolved by water, and then 20g of citric acid, 0.4g of saccharin and 0.04g of sodium dodecyl sulfate are added into the solution, and the solution is stirred and mixed uniformly. Finally, 3.22g of ammonium perrhenate was added to prepare 400ml of a plating solution. The alloy plating solution was then stirred at 1500rmp for 24h.
(3) Electroplating: the plating process adopts direct current deposition, the constant current of nickel preplating is 2.5A/dm 2, the water bath temperature is 55 ℃, the total electroplating time is 5min, and the stirring speed is 100rpm, so that a thin nickel plating layer is obtained. The constant current of the electroplated Ni-Zn-Re alloy is 4A/dm 2, the water bath temperature is 70 ℃, the electroplating time is 30min, and the stirring speed is 150rpm, so that the Ni-Zn-Re alloy coating is obtained.
Comparative example
(1) Treatment of the substrate: a low-carbon steel plate with the length of 20mm, the width of 15mm and the thickness of 2mm is taken and sequentially polished by water-grinding sand paper with the lengths of 400# and 600# and 800# and 1000# and 1500# to remove oxide skin on the surface of a substrate, and the surface has certain roughness, thereby being beneficial to nucleation of electrodeposition. Preparing degreasing liquid (namely aqueous solution) for degreasing treatment, wherein the degreasing formula comprises 10g/l sodium hydroxide and 25g/l sodium carbonate, and placing the substrate into the degreasing liquid at 65 ℃ for soaking for 10min. Then put into alcohol for ultrasonic treatment, and after blow-drying, the substrate is immersed in 12wt% dilute sulfuric acid for activation for 3-5s. And putting the substrate into alcohol for ultrasonic treatment, and then drying for standby.
(2) Preparing a plating solution: 63g/L of zinc chloride, 100g/L of nickel chloride, 215g/L of potassium chloride and 20g/L of boric acid, and the solvent is water.
(3) Electroplating: adopting direct current deposition, wherein the electroplating time is 30 minutes, the pH of the plating solution is 5.3, the stirring speed is 100rpm, the temperature of the plating solution is 35 ℃, and the current density is 3A/dm 2, thus obtaining the Ni-Zn alloy plating layer.
The surface morphology and element content of the alloy plating layer prepared in this example are shown in fig. 1 and 2, and it can be seen that the introduction of rhenium element makes the bonding of the plating layer tighter, and the obtained rhenium content accounts for approximately 50% in the plating layer. The corrosion potential of the Ni-Zn-Re alloy coating was-0.75 (comparative example Ni-Zn alloy coating was-0.94), the corrosion current was 0.448. Mu.A/cm -2 (comparative example Ni-Zn alloy coating was 4.97. Mu.A/cm -2), as measured by immersing the Ni-Zn-Re alloy coating in 3.5wt% NaCl aqueous solution for 1h, and the polarization curve and impedance spectrum of the alloy coating and the substrate were shown in FIG. 3, and the electrochemical test data (MILD STEEL is the substrate) were shown in the table. To evaluate the overall corrosion resistance of the coating, polarization resistance R p can be expressed as R p＝Rcoat+Rct,Rcoat as plating resistance and R ct as charge transfer resistance. As can be seen from the data in the table, the polarization resistance R p of the Ni-Zn-Re alloy coating was 110343.1 (comparative example Ni-Zn coating was 1901.4), indicating that the introduction of the rhenium element improved the corrosion resistance of the coating. The Ni-Zn-Re alloy coating has a larger coating resistance R coat and a smaller coating capacitance Q coat, which indicates that the impermeability of the Ni-Zn-Re alloy coating is enhanced, because the coating is more compact due to the introduction of rhenium element. The smaller capacitance Q dl of the Ni-Zn-Re alloy coating indicates that the introduction of rhenium reduces the surface activity at the interface of the coating and the active surface area contacted with corrosive medium, and further proves that the corrosion resistance of the coating containing rhenium is stronger.
According to the invention, the electroplating preparation of the Ni-Zn-Re alloy can be realized by adjusting the technological parameters of the preparation method, and the performance basically consistent with the invention is shown by test. The foregoing has described exemplary embodiments of the invention, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the invention may be made by those skilled in the art without departing from the spirit of the invention.
Claims (9)
1. The electroplating preparation method of the Ni-Zn-Re alloy is characterized by comprising the following steps of:
Step 1, taking a nickel plate as an anode for nickel preplating, taking a base material as a cathode, and placing the base material in a nickel preplating plating solution for direct current constant current electroplating to obtain a layer of thinner nickel plating, wherein the current for nickel preplating is 2-3A/dm 2, the electroplating time is 3-5 min, and the temperature is 50-60 ℃; in the nickel pre-plating solution, 145-146 g/L nickel sulfamate, 30g/L boric acid, 5g/L nickel chloride, saccharin 1g/L and sodium dodecyl sulfate 0.05-0.1g/L;
Step 2, taking a nickel plate as an anode for nickel zinc rhenium electroplating, taking the nickel-plated base material in step 1 as a cathode, placing the nickel-plated base material in Ni-Zn-Re alloy plating solution, and carrying out direct current constant current electroplating to obtain a Ni-Zn-Re alloy plating layer, wherein the current for electroplating the Ni-Zn-Re alloy is 3-4A/dm 2, the electroplating time is 25-30min, and the temperature is 65-75 ℃; in the Ni-Zn-Re alloy plating solution, 77-78 g/L of nickel sulfamate, 65g/L of zinc chloride, 3g/L of boric acid, 1g/L of saccharin, 0.05-0.1g/L of sodium dodecyl sulfate and 50g/L of citric acid.
2. The method for preparing Ni-Zn-Re alloy plating according to claim 1, wherein in step 1, stirring, for example, 100 to 200rpm is required for the plating; and (5) after electroplating, washing with water and drying to obtain a thinner nickel coating.
3. The method for preparing Ni-Zn-Re alloy plating according to claim 1, wherein in step 1, the base material is iron or steel of any shape, degreasing is performed by using a degreasing solution, the degreasing solution is 100-120g/l aqueous sodium hydroxide solution, the degreasing temperature is 60-65 ℃, and the treatment time is 8-10min.
4. The method for producing Ni-Zn-Re alloy plating according to claim 1, wherein in step 1, in the nickel pre-plating bath, 145.3 to 145.5g/L of nickel sulfamate, 30g/L of boric acid, 5g/L of nickel chloride, 1g/L of saccharin and 0.08 to 0.1g/L of sodium dodecyl sulfate are used.
5. The method for producing a Ni-Zn-Re alloy according to claim 1, wherein in step 1, the temperature is 55 to 60 ℃.
6. The method for preparing Ni-Zn-Re alloy plating according to claim 1, wherein in step 2, stirring, for example, 100 to 200rpm is required for the plating; and (5) after electroplating, washing with water and drying to obtain the Ni-Zn-Re alloy coating.
7. The method for producing Ni-Zn-Re alloy plating according to claim 1, wherein in step 2, in the Ni-Zn-Re alloy plating solution, nickel sulfamate 77-77.5 g/L, zinc chloride 65g/L, boric acid 3g/L, saccharin 1g/L, sodium dodecyl sulfate 0.08-0.1g/L and citric acid 50g/L are used.
8. The method for producing a Ni-Zn-Re alloy according to claim 1, wherein in step 2, the temperature is 65 to 70 ℃.
9. Use of a Ni-Zn-Re alloy obtained by the preparation process according to any one of claims 1 to 8 for iron or steel protection.
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| CN202211656084.5A CN118241271A (en) | 2022-12-22 | 2022-12-22 | Electroplating preparation method of Ni-Zn-Re alloy |
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