CN110029332A - A kind of chemical nickel-plating solution and nickel plating process - Google Patents
A kind of chemical nickel-plating solution and nickel plating process Download PDFInfo
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- CN110029332A CN110029332A CN201910286943.8A CN201910286943A CN110029332A CN 110029332 A CN110029332 A CN 110029332A CN 201910286943 A CN201910286943 A CN 201910286943A CN 110029332 A CN110029332 A CN 110029332A
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- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
- C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
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Abstract
The invention discloses a kind of chemical nickel-plating solutions, and including the solution A, solution B and solution C being sealed respectively, solution A includes 4-8 parts of nickel sulfate, 9-17 parts of sodium hypophosphite, 5-11 parts of lactic acid, 6-15 parts of amino acid, magnesium metal or 0.008-0.02 parts of metallic lead, 50-90 parts of deionized water；Solution B includes 3-7 parts of nickel sulfate, 3-7 parts of citric acid, 3-6 parts of ortho phosphorous acid potassium, 2-5 parts of carboxylic acid, 45-70 parts of deionized water；Solution C includes 1-3 parts of nickel acetate, 2-6 parts of sodium borohydride, 4-7 parts of acetic acid, 3-5 parts of lauryl sodium sulfate, 35-56 parts of deionized water；In use, taking volume ratio is solution A, solution B and the solution C of 1:1-2.5:0.8-3, it is uniformly mixed after filtering, adjusting pH value is 9-11.The invention also discloses a kind of chemical nickel plating methods.Nickel coating of the present invention can achieve 1000 microns, and nickel coating is fine and close, and inside will not generate hole, and corrosion resistance and good extends the service life of nickel plating part, and bond strength is high between nickel coating and processing component, and process flow is simple, and processing cost is low.
Description
Technical field
The invention belongs to nickel plating solutions and nickel plating technology field, more particularly, to a kind of chemical nickel-plating solution and nickel plating side
Method.
Background technique
Nickel plating is the method for depositing one layer of nickel on the surface of metallic article by redox, after its nickel plating
Metallic article corrosion resistance it is good, wearability is good, and glossiness is high, improve the aesthetics and physical property of metallic article, and
And it is suitable for almost all metal surface nickel plating, therefore is widely used.
But the thickness of coating that nickel plating solution and nickel plating technology currently on the market reaches can only be in 200 microns, nothing
Method realizes thicker coating effect, using with limitation.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of thickness of coating and is significantly increased, plated layer compact without
Hole, corrosion resistance height, coating and the high chemical nickel-plating solution of metallic article bond strength and the change using the nickel plating solution
Learn nickel plating process.
The technical solution adopted by the present invention to solve the technical problems is: a kind of chemical nickel-plating solution, including seals respectively
Solution A, solution B and the solution C of preservation, the solution A include 4-8 parts of nickel sulfate, and 9-17 parts of sodium hypophosphite, 5-11 parts of lactic acid,
6-15 parts of amino acid, magnesium metal or 0.008-0.02 parts of metallic lead, 50-90 parts of deionized water；The solution B includes nickel sulfate 3-
7 parts, 3-7 parts of citric acid, 3-6 parts of ortho phosphorous acid potassium, 2-5 parts of carboxylic acid, 45-70 parts of deionized water；The solution C includes nickel acetate
1-3 parts, 2-6 parts of sodium borohydride, 4-7 parts of acetic acid, 3-5 parts of lauryl sodium sulfate, 35-56 parts of deionized water；In use, taking body
Solution A, solution B and the solution C that product ratio is 1:1-2.5:0.8-3, are uniformly mixed after filtering, and adjusting pH value is 9-11.
Further, order of addition when solution A, solution B and solution C mix is that solution A is added into solution B, is mixed
Liquid is added into solution C while stirring.
Further, the solution A includes 5-7 parts of nickel sulfate, and 11-15 parts of sodium hypophosphite, 7-10 parts of lactic acid, amino acid 8-
13 parts, magnesium metal or 0.01-0.016 parts of metallic lead, 65-85 parts of deionized water, adjusting pH value is 8-10.
Further, the solution B includes 4-6 parts of nickel sulfate, and 4-5 parts of citric acid, 4-5 parts of ortho phosphorous acid potassium, carboxylic acid 2-4
Part, 60-68 parts of deionized water.
Further, the solution C includes 1-2 parts of nickel acetate, and 3-5 parts of sodium borohydride, 5-6 parts of acetic acid, dodecyl sulphur
Sour sodium 3-5 parts, 45-52 parts of deionized water.
The invention also discloses a kind of chemical nickel plating methods, comprising the following steps:
1) main coating bath and auxiliary coating bath are passivated with the nitric acid of 50-60% concentration, with pure water by main coating bath and auxiliary
Coating bath is helped to clean, by main coating bath and auxiliary coating bath isolation；
2) pure water of 25-28L is added in main coating bath, the pure water of 2-4L is added in auxiliary coating bath, measures respectively
PH value guarantees in main coating bath and assists not being mixed into nitric acid in coating bath；
3) it takes 0.18-0.3L nickel plating solution that main coating bath is added by chemical feed pipe one, it is auxiliary to being higher than to adjust water level in main coating bath
Coating bath is helped, temperature is 86-94 DEG C, and ammonium hydroxide is added dropwise into main coating bath with the speed of 1-10ml/s, measures pH value in 4.6-4.9；
4) take 0.08-0.15L nickel plating solution that auxiliary coating bath is added by chemical feed pipe two, water level is to low in adjustment auxiliary coating bath
In main coating bath, temperature is 86-94 DEG C, and ammonium hydroxide is added dropwise into auxiliary coating bath with the speed of 1-10ml/s, measures pH value in 4.6-4.9
It is interior；
5) it is connected to main coating bath and auxiliary coating bath, main plating is recycled by filtered water inlet pipe and filtering outlet pipe using filter plant
Liquid in slot and auxiliary coating bath；
6) processed product is placed in main coating bath, monitors the nickel content in main coating bath, when detecting nickel content≤0.1g/
When L, with 8-12ml/min to auxiliary coating bath in make-up solution B and solution C；
7) it after processed product stops 48-53 hours in main coating bath, takes out in the water for be placed in 75-85 DEG C and cleans, it is dry
It is placed in 4.8-6h in 180-220 DEG C of high temperature afterwards, natural cooling to obtain the final product.
Preferably, concentration of nitric acid is 50% in the step 1).
Preferably, the pure water of 26L is added in the step 2) in main coating bath, the pure of 2L is added in auxiliary coating bath
Water.
Preferably, taking 0.2L nickel plating solution in the step 3)；0.1L nickel plating solution is taken in the step 4).
Preferably, the additive amount of solution B and solution C is 10ml in the step 6)；Residence time in the step 7)
It is 50 hours
The beneficial effects of the present invention are: 1) nickel coating can achieve 1000 microns, 4-5 is improved than existing nickel-plating technology
Times；2) nickel coating is fine and close, and inside will not generate hole；3) corrosion resistance and good extends the service life of nickel plating part；4) nickel coating
Bond strength is high between processing component, will not generate separating delamination phenomenon；5) process flow is simple, and processing cost is relatively
It is low.
Detailed description of the invention
Fig. 1 is nickel plating product of the present invention (vehicle-mounted mode, light guide plate, lens mode, HUD mode, vehicle carried mobile phone mode)
Photo schematic diagram.
Fig. 2 is the photo schematic diagram one of nickel plating product of the present invention.
Fig. 3 is the photo schematic diagram two of nickel plating product of the present invention.
Fig. 4 is the photo schematic diagram three of nickel plating product of the present invention.
Fig. 5 is the photo schematic diagram four of nickel plating product of the present invention.
Specific embodiment
It, below will be to the technology in inventive embodiments in order to make those skilled in the art better understand the present invention program
Scheme carries out clear, complete description, it is clear that and described embodiment is only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, should fall within the scope of the present invention.
Embodiment one
A kind of chemical nickel-plating solution, including the solution A, solution B and solution C being sealed respectively, solution A includes nickel sulfate
4 parts, 9 parts of sodium hypophosphite, 5 parts of lactic acid, 6 parts of amino acid, magnesium metal or 0.01 part of metallic lead, adjust pH value by 60 parts of deionized water
For 8-10；
Solution B includes 4 parts of nickel sulfate, 5 parts of citric acid, 4 parts of ortho phosphorous acid potassium, 5 parts of carboxylic acid, 50 parts of deionized water；
Solution C includes 1 part of nickel acetate, and 4 parts of sodium borohydride, 6 parts of acetic acid, 4 parts of lauryl sodium sulfate, deionized water 45
Part.
A kind of chemical nickel plating method, comprising the following steps:
1) main coating bath and auxiliary coating bath are passivated with the nitric acid of 50% concentration, are plated main coating bath and auxiliary with pure water
Trough washery is net, by main coating bath and auxiliary coating bath isolation；
2) pure water of 26L is added in main coating bath, the pure water of 2L is added in auxiliary coating bath, measures pH value respectively and protects
It demonstrate,proves in main coating bath and assists not to be mixed into nitric acid in coating bath；
3) it takes 0.09L solution A to be added in 0.11mL solution B, while mixing, is added in 0.1L solution C, prepares
At chemical nickel-plating solution；
4) main coating bath is added by chemical feed pipe one in above-mentioned 0.2L nickel plating solution, adjusts in main coating bath water level to being higher than auxiliary
Water level in coating bath, temperature are 86 DEG C, and ammonium hydroxide is added dropwise into main coating bath with the speed of 5ml/s, measure pH value in 4.6-4.9 range
It is interior；
5) take 0.1L nickel plating solution that auxiliary coating bath is added by chemical feed pipe two, water level is to being lower than main plating in adjustment auxiliary coating bath
Water level in slot, temperature are 89 DEG C, and ammonium hydroxide is added dropwise into auxiliary coating bath with the speed of 8mL/s, measures pH value in 4.6-4.9 range
It is interior；
6) it is connected to main coating bath and auxiliary coating bath, main plating is recycled by filtered water inlet pipe and filtering outlet pipe using filter plant
Liquid in slot and auxiliary coating bath；
7) processed product is placed in main coating bath such as the optical mould of stainless steel material, the nickel monitored in main coating bath contains
Amount supplements 10ml solution B into auxiliary coating bath with the speed of 8ml/min and 10ml is molten when detecting nickel content≤0.1g/L
Liquid C, wherein circulation stirring speed is auxiliary 2 circulation/min of coating bath, and main coating bath is 1.5 circulation/min；
8) it after processed product stops 50 hours in main coating bath, takes out in the water for be placed in 78 DEG C and cleans, be placed in after dry
5h in 190 DEG C of high temperature, natural cooling to obtain the final product.
Embodiment two
A kind of chemical nickel-plating solution, including the solution A, solution B and solution C being sealed respectively, solution A includes nickel sulfate
7 parts, 12 parts of sodium hypophosphite, 8 parts of lactic acid, 0 part of amino acid 1, magnesium metal or 0.012 part of metallic lead, adjust pH by 80 parts of deionized water
Value is 8-10；
Solution B includes 5 parts of nickel sulfate, 4 parts of citric acid, 5 parts of ortho phosphorous acid potassium, 3 parts of carboxylic acid, 40 parts of deionized water；
Solution C includes 2 parts of nickel acetate, and 5 parts of sodium borohydride, 5 parts of acetic acid, 3 parts of lauryl sodium sulfate, deionized water 35
Part.
A kind of chemical nickel plating method, comprising the following steps:
1) main coating bath and auxiliary coating bath are passivated with the nitric acid of 55% concentration, are plated main coating bath and auxiliary with pure water
Trough washery is net, by main coating bath and auxiliary coating bath isolation；
2) pure water of 25L is added in main coating bath, the pure water of 4L is added in auxiliary coating bath, measures pH value respectively and protects
It demonstrate,proves in main coating bath and assists not to be mixed into nitric acid in coating bath；
3) it takes 0.09L solution A to be added in 0.09mL solution B, while mixing, is added in 0.09L solution C, matches
Chemical nickel-plating solution is made；
4) main coating bath is added by chemical feed pipe one in above-mentioned 0.18L nickel plating solution, it is auxiliary to being higher than adjusts water level in main coating bath
The water level in coating bath is helped, temperature is 89 DEG C, and ammonium hydroxide is added dropwise into main coating bath with the speed of 10ml/s, measures pH value in 4.6-4.9
In range；
5) take 0.11L nickel plating solution that auxiliary coating bath is added by chemical feed pipe two, water level is to being lower than master in adjustment auxiliary coating bath
Water level in coating bath, temperature are 90 DEG C, and ammonium hydroxide is added dropwise into auxiliary coating bath with the speed of 10mL/s, measures pH value in 4.6-4.9
In range；
6) it is connected to main coating bath and auxiliary coating bath, main plating is recycled by filtered water inlet pipe and filtering outlet pipe using filter plant
Liquid in slot and auxiliary coating bath；
7) processed product is placed in main coating bath such as the optical mould of stainless steel material, the nickel monitored in main coating bath contains
Amount supplements 8ml solution B and 8ml solution into auxiliary coating bath with the speed of 10ml/min when detecting nickel content≤0.1g/L
C, wherein circulation stirring speed is auxiliary 2 circulation/min of coating bath, and main coating bath is 1.5 circulation/min；
8) it after processed product stops 53 hours in main coating bath, takes out in the water for be placed in 80 DEG C and cleans, be placed in after dry
5.5h in 200 DEG C of high temperature, natural cooling to obtain the final product.
Embodiment three
A kind of chemical nickel-plating solution, including the solution A, solution B and solution C being sealed respectively, solution A includes nickel sulfate
6 parts, 14 parts of sodium hypophosphite, 10 parts of lactic acid, 2 parts of amino acid 1, magnesium metal or 0.008 part of metallic lead, are adjusted by 90 parts of deionized water
PH value is 8-10；
Solution B includes 7 parts of nickel sulfate, 6 parts of citric acid, 6 parts of ortho phosphorous acid potassium, 2 parts of carboxylic acid, 60 parts of deionized water；
Solution C includes 3 parts of nickel acetate, and 6 parts of sodium borohydride, 7 parts of acetic acid, 4 parts of lauryl sodium sulfate, deionized water 50
Part.
A kind of chemical nickel plating method, comprising the following steps:
1) main coating bath and auxiliary coating bath are passivated with the nitric acid of 60% concentration, are plated main coating bath and auxiliary with pure water
Trough washery is net, by main coating bath and auxiliary coating bath isolation；
2) pure water of 27L is added in main coating bath, the pure water of 3.5L is added in auxiliary coating bath, measures pH value respectively
Guarantee in main coating bath and assists not being mixed into nitric acid in coating bath；
3) it takes 0.09L solution A to be added in 0.14mL solution B, while mixing, is added in 0.19L solution C, matches
Chemical nickel-plating solution is made；
4) main coating bath is added by chemical feed pipe one in above-mentioned 0.3L nickel plating solution, adjusts in main coating bath water level to being higher than auxiliary
Water level in coating bath, temperature are 92 DEG C, and ammonium hydroxide is added dropwise into main coating bath with the speed of 4ml/s, measure pH value in 4.6-4.9 range
It is interior；
5) take 0.12L nickel plating solution that auxiliary coating bath is added by chemical feed pipe two, water level is to being lower than master in adjustment auxiliary coating bath
Water level in coating bath, temperature are 92 DEG C, and ammonium hydroxide is added dropwise into auxiliary coating bath with the speed of 5mL/s, measures pH value in 4.6-4.9 model
In enclosing；
6) it is connected to main coating bath and auxiliary coating bath, main plating is recycled by filtered water inlet pipe and filtering outlet pipe using filter plant
Liquid in slot and auxiliary coating bath；
7) processed product is placed in main coating bath such as the optical mould of stainless steel material, the nickel monitored in main coating bath contains
Amount supplements 10ml solution B into auxiliary coating bath with the speed of 11ml/min and 10ml is molten when detecting nickel content≤0.1g/L
Liquid C, wherein circulation stirring speed is auxiliary 2 circulation/min of coating bath, and main coating bath is 1.5 circulation/min；
8) it after processed product stops 51 hours in main coating bath, takes out in the water for be placed in 83 DEG C and cleans, be placed in after dry
4.8h in 220 DEG C of high temperature, natural cooling to obtain the final product.
Example IV
A kind of chemical nickel-plating solution, including the solution A, solution B and solution C being sealed respectively, solution A includes nickel sulfate
5 parts, 15 parts of sodium hypophosphite, 7 parts of lactic acid, 3 parts of amino acid 1, magnesium metal or 0.016 part of metallic lead, adjust pH by 85 parts of deionized water
Value is 8-10；
Solution B includes 6 parts of nickel sulfate, 3 parts of citric acid, 4 parts of ortho phosphorous acid potassium, 4 parts of carboxylic acid, 68 parts of deionized water；
Solution C includes 1.5 parts of nickel acetate, and 3 parts of sodium borohydride, 4 parts of acetic acid, 5 parts of lauryl sodium sulfate, deionized water 56
Part.
A kind of chemical nickel plating method, comprising the following steps:
1) main coating bath and auxiliary coating bath are passivated with the nitric acid of 50% concentration, are plated main coating bath and auxiliary with pure water
Trough washery is net, by main coating bath and auxiliary coating bath isolation；
2) pure water of 26L is added in main coating bath, the pure water of 2.5L is added in auxiliary coating bath, measures pH value respectively
Guarantee in main coating bath and assists not being mixed into nitric acid in coating bath；
3) it takes 0.09L solution A to be added in 0.17mL solution B, while mixing, is added in 0.14L solution C, matches
Chemical nickel-plating solution is made；
4) main coating bath is added by chemical feed pipe one in above-mentioned 0.25L nickel plating solution, it is auxiliary to being higher than adjusts water level in main coating bath
The water level in coating bath is helped, temperature is 94 DEG C, and ammonium hydroxide is added dropwise into main coating bath with the speed of 6ml/s, measures pH value in 4.6-4.9 model
In enclosing；
5) take 0.15L nickel plating solution that auxiliary coating bath is added by chemical feed pipe two, water level is to being lower than master in adjustment auxiliary coating bath
Water level in coating bath, temperature are 94 DEG C, and ammonium hydroxide is added dropwise into auxiliary coating bath with the speed of 9mL/s, measures pH value in 4.6-4.9 model
In enclosing；
6) it is connected to main coating bath and auxiliary coating bath, main plating is recycled by filtered water inlet pipe and filtering outlet pipe using filter plant
Liquid in slot and auxiliary coating bath；
7) processed product is placed in main coating bath such as the optical mould of stainless steel material, the nickel monitored in main coating bath contains
Amount supplements 10ml solution B into auxiliary coating bath with the speed of 12ml/min and 10ml is molten when detecting nickel content≤0.1g/L
Liquid C, wherein circulation stirring speed is auxiliary 2 circulation/min of coating bath, and main coating bath is 1.5 circulation/min；
8) it after processed product stops 50 hours in main coating bath, takes out in the water for be placed in 80 DEG C and cleans, be placed in after dry
5h in 180 DEG C of high temperature, natural cooling to obtain the final product.
The nickel plating properties of product of the present invention of table 1 compare
From table 1 it follows that the optical mould prepared using chemical nickel-plating solution of the invention and nickel plating process, resistance to
Etching time is dramatically increased, and thickness is 4-5 times of the nickel coating that existing nickel plating process obtains, in combination with intensity and firmly
Degree is all unaffected, suitable with the nickel coating performance that existing nickel plating process obtains.
As shown in Figs. 1-5, the various molds prepared using chemical nickel-plating solution of the invention and nickel plating process, plate thickness
Degree is big, and glossiness is good, and texture is superior.
Above-mentioned specific embodiment is used to illustrate the present invention, rather than limits the invention, of the invention
In spirit and scope of protection of the claims, to any modifications and changes that the present invention makes, protection model of the invention is both fallen within
It encloses.
Claims (10)
1. a kind of chemical nickel-plating solution, it is characterised in that: described molten including the solution A, solution B and solution C being sealed respectively
Liquid A includes 4-8 parts of nickel sulfate, and 9-17 parts of sodium hypophosphite, 5-11 parts of lactic acid, 6-15 parts of amino acid, magnesium metal or metallic lead
0.008-0.02 parts, 50-90 parts of deionized water；The solution B includes 3-7 parts of nickel sulfate, and 3-7 parts of citric acid, ortho phosphorous acid potassium
3-6 parts, 2-5 parts of carboxylic acid, 45-70 parts of deionized water；The solution C includes 1-3 parts of nickel acetate, and 2-6 parts of sodium borohydride, acetic acid 4-
7 parts, 3-5 parts of lauryl sodium sulfate, 35-56 parts of deionized water；In use, taking volume ratio is the molten of 1:1-2.5:0.8-3
Liquid A, solution B and solution C are uniformly mixed after filtering, and adjusting pH value is 9-11.
2. chemical nickel-plating solution according to claim 1, it is characterised in that: adding when solution A, solution B and solution C mix
Adding sequence is that solution A is added into solution B, and mixed liquor is added into solution C while stirring.
3. chemical nickel-plating solution according to claim 1, it is characterised in that: the solution A includes 5-7 parts of nickel sulfate, secondary
11-15 parts of sodium phosphate, 7-10 parts of lactic acid, 8-13 parts of amino acid, magnesium metal or 0.01-0.016 parts of metallic lead, deionized water 65-
85 parts, adjusting pH value is 8-10.
4. chemical nickel-plating solution according to claim 1, it is characterised in that: the solution B includes 4-6 parts of nickel sulfate, lemon
4-5 parts of lemon acid, 4-5 parts of ortho phosphorous acid potassium, 2-4 parts of carboxylic acid, 60-68 parts of deionized water.
5. chemical nickel-plating solution according to claim 1, it is characterised in that: the solution C includes 1-2 parts of nickel acetate, boron
3-5 parts of sodium hydride, 5-6 parts of acetic acid, 3-5 parts of lauryl sodium sulfate, 45-52 parts of deionized water.
6. a kind of chemical nickel plating method, it is characterised in that the following steps are included:
1) main coating bath and auxiliary coating bath are passivated with the nitric acid of 50-60% concentration, are plated main coating bath and auxiliary with pure water
Trough washery is net, by main coating bath and auxiliary coating bath isolation；
2) pure water of 25-28L is added in main coating bath, the pure water of 2-4L is added in auxiliary coating bath, measures pH value respectively
Guarantee in main coating bath and assists not being mixed into nitric acid in coating bath；
3) it takes 0.18-0.3L nickel plating solution that main coating bath is added by chemical feed pipe one, adjusts water level in main coating bath and plated to auxiliary is higher than
Slot, temperature are 86-94 DEG C, and ammonium hydroxide is added dropwise into main coating bath with the speed of 1-10ml/s, measure pH value in 4.6-4.9；
4) take 0.08-0.15L nickel plating solution that auxiliary coating bath is added by chemical feed pipe two, water level is to being lower than master in adjustment auxiliary coating bath
Coating bath, temperature are 86-94 DEG C, and ammonium hydroxide is added dropwise into auxiliary coating bath with the speed of 1-10ml/s, measures pH value in 4.6-4.9；
5) main coating bath and auxiliary coating bath are connected to, using filter plant by filtered water inlet pipe and filtering outlet pipe recycle main coating bath and
Assist the liquid in coating bath；
6) processed product is placed in main coating bath, monitors the nickel content in main coating bath, when detecting nickel content≤0.1g/L,
With 8-12ml/min to auxiliary coating bath in make-up solution B and solution C；
7) it after processed product stops 48-53 hours in main coating bath, takes out in the water for be placed in 75-85 DEG C and cleans, dry postposition
Enter 4.8-6h in 180-220 DEG C of high temperature, natural cooling to obtain the final product.
7. chemical nickel plating method according to claim 6, it is characterised in that: concentration of nitric acid is 50% in the step 1).
8. chemical nickel plating method according to claim 6, it is characterised in that: 26L is added in the step 2) in main coating bath
Pure water, auxiliary coating bath in be added 2L pure water.
9. chemical nickel plating method according to claim 6, it is characterised in that: take 0.2L nickel plating solution in the step 3)；
0.1L nickel plating solution is taken in the step 4).
10. chemical nickel plating method according to claim 6, it is characterised in that: solution B and solution C in the step 6)
Additive amount is 10ml；The residence time is 50 hours in the step 7).
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| CN105695962A (en) * | 2016-03-10 | 2016-06-22 | 中南大学 | Solution for chemically plating nickel on surface of non-catalytic active material and plating process for solution |
| CN107177837A (en) * | 2017-05-17 | 2017-09-19 | 南通惠能镀镍钢带有限公司 | A kind of steel band chemical nickel-plating solution and its nickel plating process |
| CN107974674A (en) * | 2017-10-31 | 2018-05-01 | 宁波纬诚科技股份有限公司 | Pollution-free environmental protection nickel plating liquid, its preparation method and its application method |
| CN108559979A (en) * | 2018-01-24 | 2018-09-21 | 永星化工(上海)有限公司 | A kind of chemical nickel-plating liquid and preparation method thereof |
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