CN106048568A - Environment-friendly chemical nickel plating method - Google Patents
Environment-friendly chemical nickel plating method Download PDFInfo
- Publication number
- CN106048568A CN106048568A CN201610693189.6A CN201610693189A CN106048568A CN 106048568 A CN106048568 A CN 106048568A CN 201610693189 A CN201610693189 A CN 201610693189A CN 106048568 A CN106048568 A CN 106048568A
- Authority
- CN
- China
- Prior art keywords
- plating
- liquid
- chemical nickel
- nickel plating
- bath
- 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.)
- Granted
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
- 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
Abstract
The present invention discloses an environment-friendly chemical nickel plating method. According to the present invention, benzimidazole and the compounding of potassium iodide-copper sulfate respectively provide a stabilization effect and a brightening effect to a citric acid chemical nickel plating system; benzimidazole is adopted as the stabilizing agent of the citric acid chemical nickel plating system, the compounding of potassium iodide and copper sulfate is adopted as the brightening agent, all raw materials, auxiliary materials and additives are easy to buy, the plating process is simple and easy to operate, the plating liquid does not contain Pb<2+>, Cd<2+> and other toxic and harmful heavy metal ions, the plating layer has high corrosion resistance and is bright, and the method is an environment-friendly surface treatment technology, can plate a nickel-phosphorus alloy plating layer on the surface of carbon steel, aluminum alloys and other materials, and has potential application prospects and economic benefits; and with the application of the method of the present invention to perform laboratory plating, the service life of the plating liquid can achieve 8 metal cycles, the neutral salt spray corrosion resistance time of the plating layer is more than 48 h, and the brightness of the plating layer can achieve 208 Gs.
Description
Technical field
The invention belongs to materials science field, a kind of method of environmentally friendly chemical nickel plating.
Background technology
Chemical plating nickel technology has that corrosion resistance of coating is good, hardness is high, coating is uniform, can be uniform on complex shape part surface
The plurality of advantages such as plating, are widely used in the industries such as Aeronautics and Astronautics, automobile making, chemical industry.But traditional chemical nickel plating technology
In make brightener frequently with lead (II) ion used as stabilizers, divalent cadmium ion so that containing Pb in plating solution and waste water2+、Cd2+Deng
Poisonous and hazardous heavy metal ion, subsequent wastewater treatment burden weight, do not meet the development trend of process for treating surface greenization.
The solution used at present has: adds thiourea or derivatives thereof used as stabilizers in chemical nickel-plating plating solution, adds
Brightener made by stannous sulfate, to reducing bivalence lead and cadmic content in plating solution as far as possible.But above method is primarily present
The subject matter of corrosion resistance of coating low (the resistance to Neutral Salt Spray Corrosion time is less than 48 hours).
Summary of the invention
It is an object of the invention to: a kind of method providing environmentally friendly chemical nickel plating, its plating solution does not contains Pb2+、Cd2 +In poisonous and harmful heavy metallic ion, and bath stability, corrosion resistance of coating and bright property are no less than tradition citric acid systems chemistry
Nickel plating technology, to overcome prior art not enough.
The present invention is achieved in that the method for environmentally friendly chemical nickel plating, comprises the steps:
1) basic bath prepared is put into agitating heating in water bath with thermostatic control and be warming up to 85～90 DEG C；
2) plating sheet is passed through polishing, oil removing, washing, surface active, again washing step, it is achieved pre-treatment；
3) the plating sheet through pre-treatment is put into basic bath carries out chemical nickel plating；
4) will be passivated processing in the plating sheet immersion chromatedsolution of chemical nickel plating again；
5) dry after the plating sheet after passivation being washed with deionized water only, i.e. complete nickel process.
Configuration 50L basic bath comprises the steps；
A) 10-15kg nickel sulfate hexahydrate is dissolved in 30-40L deionized water, after dissolving, under agitation adds 4-
5kg citric acid monohydrate, 1.5-2.5L auxiliary complex-former and 1-1.5g stabilizer, after being uniformly mixed, be settled to pure water
50L, then regulate pH value to 4.58～4.62, obtain A liquid；
B) 7-9kg sodium hypophosphite is dissolved in 30-40L deionized water, after dissolving, under agitation adds 3.5-4kg
Crystallization sodium acetate, 3-3.5kg citric acid monohydrate, 1.4-1.8L auxiliary complex-former, 1.5-2g stabilizer, 2-3g 2-ethylhexyl
Sodium sulfate and 13-18g brightener, after being uniformly mixed, be settled to 50L with pure water, obtains B liquid；
C) under agitation, by 14-16kg mono-waterside sodium phosphate in 30-40L deionized water, add 6-7kg and crystallize acetic acid
Sodium, 1-2g sodium 2-ethylhexyl sulfate and 6-8g brightener, after being uniformly mixed, be settled to 50L with pure water, obtains C liquid；
4) in coating bath, add 5L A liquid and 10L pure water, add 10L B liquid under agitation, test after mix homogeneously
PH value is 4.58-4.62, is settled to 50L, is heated to set point of temperature and can carry out chemical nickel plating operation.
Described auxiliary complex-former be mass percent be the lactic acid of 88%, described stabilizer is benzimidazole；Described
Brightener be potassium iodide and copper sulfate, the mass ratio of potassium iodide and copper sulfate is 8～15:30～60；Described wetting agent is
OP-10。
Step 3) described in carry out chemical nickel plating, specifically, the basic bath in coating bath is heated to 85-90 DEG C laggard
Row chemical nickel plating operates；During plating, every 30min presses volume ratio addition A liquid and C liquid, each A liquid and the C of 1:1 in coating bath
The 1-2% of plating solution initial volume amount based on the volume total amount that liquid adds, and use 1+1 ammonia to regulate pH value.
Owing to have employed technique scheme, compared with prior art, the present invention filters out from big quantity of material and is applicable to
The stabilizer of citric acid systems chemical nickel plating and brightener, to replace traditional lead (II) ion and cadmium ion, and successful Application
In Electroless Nickel Plating of Aluminum Alloy produces reality, achieve good result.Find that benzimidazole and potassium iodide-copper sulfate are compound to lemon
Lemon acid system chemical nickel plating is respectively provided with Stabilization and light effect, and the present invention makees citric acid chemical plating nickel body with benzimidazole
The stabilizer of system, potassium iodide is compound with copper sulfate makees brightener, and all raw and auxiliary materials and additive are easily bought, plating technology letter
Single easily operation, without Pb in plating solution2+、Cd2+In poisonous and harmful heavy metallic ion, corrosion resistance of coating is high and bright, is a kind of environment
Friendly process for treating surface, can have potential answering at the material surface such as carbon steel, aluminium alloy plated nickel-phosphor alloy coating
By prospect and economic benefit.Using the present invention to carry out laboratory plating, plating solution can reach 8 metal cycles in service life, plating
The resistance to Neutral Salt Spray Corrosion time ＞ 48h of layer, coating brightness can reach 208Gs.
Detailed description of the invention
Embodiments of the invention: the method for environmentally friendly chemical nickel plating,
1. dosing and join groove method
(1) preparation A liquid (join groove and add use, to prepare 50L calculating)
Dissolve 12.5kg nickel sulfate (six water) with 35L pure water, after having dissolved, add 4.5kg citric acid (water), 2.0L breast
Acid (88%), 1.25g benzimidazole, after being uniformly mixed, add water to 50L, adjust with 20% sodium hydroxide solution and 1+1 ammonia
Joint pH value, to 4.60 ± 0.02, saves backup；
(2) preparation B liquid (joining groove use, to prepare 50L calculating)
First dissolve 7.5kg sodium hypophosphite with about 35L pure water, after having dissolved, under agitation add crystallization sodium acetate
3.75kg, citric acid (water) 3.25kg, lactic acid 1.5L, benzimidazole 1.875g, sodium 2-ethylhexyl sulfate 2.5g, potassium iodide
2.5g, copper sulfate (five water) 12.5g, after being thoroughly mixed uniformly, be settled to 50L.
(3) preparation C liquid (adding use, the ratio of the interpolation with A liquid for 1:1, calculates preparing 50L)
Dissolve 15.0kg sodium hypophosphite (water) with 35L pure water, after having dissolved, add crystallization sodium acetate 6.5kg, 2-ethyl
Sodium hexy1 sulfate 1.5g, potassium iodide 1.5g, copper sulfate (five water) 5.5g, after being thoroughly mixed uniformly, it is settled to 50L standby.
(4) groove (to prepare 50L calculating) is joined
In coating bath, add 5L A liquid, add pure water 10L, add the B liquid 10L prepared under agitation, mixing
Testing pH value (the most about about 4.6) after Jun Yun, regulation, to 4.60, is settled to 50L.
(5) plating
Tank liquor is heated to 87 DEG C can carry out chemical nickel plating operation.During plating, every 30min adds A liquid, C in coating bath
The each 375mL of liquid, 1+1 ammonia 120mL.
Described auxiliary complex-former be mass percent be the lactic acid of 88%, described stabilizer is benzimidazole；Described
Brightener be potassium iodide and copper sulfate, the mass ratio of potassium iodide and copper sulfate is 8～15:30～60；Described wetting agent is
OP-10。
2, plating solution maintenance
(1) consumption of plating solution metallic nickel is supplemented by A liquid, and the consumption of reducing agent (sodium hypophosphite) is supplemented by C liquid.For stable plating
Liquid forms, and needs regular (secondary/2h) to analyze nickel (II) ion concentration, hypophosphite ion concentration and pH value in plating solution, according to dividing
Analysis result adjusts A liquid, C liquid and the addition of ammonia in good time.During interpolation, first add A liquid, then add C liquid.
(2) after entering the period 4, due to the accumulation of phosphite, plating speed can slow down, can be by improving main salt concentration
Or temperature improves plating speed, but the raising of temperature must be carried out with caution, refers to table 1.
(3) when plating solution quits work, bath temperature to be reduced to about 60 DEG C.When finding that plating solution is because of moisture evaporation
And when thickening, pure water to be added in time to working volume.
(4) plating solution to filter (filtration frequencies is not less than 2 times/hour) continuously, removes the fine particles being likely to occur.
(5) the process parameter control reference value in each cycle is as follows:
Table 1 each cycle parameter control table
The present invention was once amplified experiment in factory, and all technical all reaches desired value.
The present invention is applicable to cover nickel-phosphor alloy coating, various raw materials at the metal material surface plating such as carbon steel, aluminium alloy
And additive easily buys, easy to use, plating cost can be greatly decreased, be a kind of feasible skill that have passed through and produce practice examining
Art, has a good application prospect and economic benefit.
Claims (4)
1. the method for an environmentally friendly chemical nickel plating, it is characterised in that: comprise the steps:
1) basic bath prepared is put into agitating heating in water bath with thermostatic control and be warming up to 85～90 DEG C；
2) plating sheet is passed through polishing, oil removing, washing, surface active, again washing step, it is achieved pre-treatment；
3) the plating sheet through pre-treatment is put into basic bath carries out chemical nickel plating；
4) will be passivated processing in the plating sheet immersion chromatedsolution of chemical nickel plating again；
5) dry after the plating sheet after passivation being washed with deionized water only, i.e. complete nickel process.
The method of environmentally friendly chemical nickel plating the most according to claim 1, it is characterised in that: configuration 50L basic bath
Comprise the steps；
A) 10-15kg nickel sulfate hexahydrate is dissolved in 30-40L deionized water, after dissolving, under agitation adds 4-5kg mono-
Water citric acid, 1.5-2.5L auxiliary complex-former and 1-1.5g stabilizer, after being uniformly mixed, be settled to 50L with pure water, then adjust
Joint pH value, to 4.58～4.62, obtains A liquid；
B) 7-9kg sodium hypophosphite is dissolved in 30-40L deionized water, after dissolving, under agitation adds 3.5-4kg crystallization
Sodium acetate, 3-3.5kg citric acid monohydrate, 1.4-1.8L auxiliary complex-former, 1.5-2g stabilizer, 2-3g 2-ethylhexyl sulphuric acid
Sodium and 13-18g brightener, after being uniformly mixed, be settled to 50L with pure water, obtains B liquid；
C) under agitation, by 14-16kg mono-waterside sodium phosphate in 30-40L deionized water, add 6-7kg and crystallize sodium acetate, 1-
2g sodium 2-ethylhexyl sulfate and 6-8g brightener, after being uniformly mixed, be settled to 50L with pure water, obtains C liquid；
4) adding 5L A liquid and 10L pure water in coating bath, add 10LB liquid under agitation, testing pH value after mix homogeneously is
4.58-4.62, is settled to 50L, is heated to set point of temperature and can carry out chemical nickel plating operation.
The method of environmentally friendly chemical nickel plating the most according to claim 2, it is characterised in that: described auxiliary complex-former
Being the lactic acid of 88% for mass percent, described stabilizer is benzimidazole；Described brightener is potassium iodide and copper sulfate,
Potassium iodide is 8～15:30～60 with the mass ratio of copper sulfate；Described wetting agent is OP-10.
The method of environmentally friendly chemical nickel plating the most according to claim 3, it is characterised in that: step 3) described in enter
Row chemical nickel plating, specifically, carries out chemical nickel plating operation after the basic bath in coating bath is heated to 85-90 DEG C；Plating process
In every 30min in coating bath, press the volume ratio of 1:1 add plating based on the volume total amount that A liquid and C liquid, each A liquid and C liquid add
The 1-2% of liquid initial volume amount, and use 1+1 ammonia to regulate pH value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693189.6A CN106048568B (en) | 2016-08-21 | 2016-08-21 | The method of environmentally friendly chemical nickel plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693189.6A CN106048568B (en) | 2016-08-21 | 2016-08-21 | The method of environmentally friendly chemical nickel plating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106048568A true CN106048568A (en) | 2016-10-26 |
| CN106048568B CN106048568B (en) | 2018-07-24 |
Family
ID=57195305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610693189.6A Active CN106048568B (en) | 2016-08-21 | 2016-08-21 | The method of environmentally friendly chemical nickel plating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106048568B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110872706A (en) * | 2019-12-24 | 2020-03-10 | 杭州和韵科技有限公司 | Long-life high-corrosion-resistance chemical nickel solution and preparation and application thereof |
| CN111733406A (en) * | 2020-07-15 | 2020-10-02 | 赤壁市聚茂新材料科技有限公司 | Long-acting chemical tin plating solution for thick plating layer and tin plating method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851752A (en) * | 2010-06-09 | 2010-10-06 | 济南德锡科技有限公司 | Long-service-life high-speed acid environment protection bright chemical nickel plating additive and use method thereof |
| CN101892471A (en) * | 2010-07-09 | 2010-11-24 | 中南大学 | Chemical nickel plating process of Mg-Gd-Y-Zr magnesium alloy |
| CN102605358A (en) * | 2012-04-11 | 2012-07-25 | 姬玉林 | Application of chemical plating nickel phosphorus alloy to triallyl cyanurate (TAC) film production line |
| CN104328395A (en) * | 2014-10-17 | 2015-02-04 | 金川集团股份有限公司 | Phosphorus chemical nickel plating concentrated solution and plating process |
| CN104357812A (en) * | 2014-10-17 | 2015-02-18 | 金川集团股份有限公司 | Low-phosphorous chemical nickel-plating concentrated solution and plating process |
-
2016
- 2016-08-21 CN CN201610693189.6A patent/CN106048568B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851752A (en) * | 2010-06-09 | 2010-10-06 | 济南德锡科技有限公司 | Long-service-life high-speed acid environment protection bright chemical nickel plating additive and use method thereof |
| CN101892471A (en) * | 2010-07-09 | 2010-11-24 | 中南大学 | Chemical nickel plating process of Mg-Gd-Y-Zr magnesium alloy |
| CN102605358A (en) * | 2012-04-11 | 2012-07-25 | 姬玉林 | Application of chemical plating nickel phosphorus alloy to triallyl cyanurate (TAC) film production line |
| CN104328395A (en) * | 2014-10-17 | 2015-02-04 | 金川集团股份有限公司 | Phosphorus chemical nickel plating concentrated solution and plating process |
| CN104357812A (en) * | 2014-10-17 | 2015-02-18 | 金川集团股份有限公司 | Low-phosphorous chemical nickel-plating concentrated solution and plating process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110872706A (en) * | 2019-12-24 | 2020-03-10 | 杭州和韵科技有限公司 | Long-life high-corrosion-resistance chemical nickel solution and preparation and application thereof |
| CN111733406A (en) * | 2020-07-15 | 2020-10-02 | 赤壁市聚茂新材料科技有限公司 | Long-acting chemical tin plating solution for thick plating layer and tin plating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106048568B (en) | 2018-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103088393B (en) | A kind of automobile panel surface treatment method | |
| CN106245071B (en) | Acid non-cyanide plating cadmium additive, plating solution prepares and electroplating technology | |
| CN106119815A (en) | Copper and the method for copper alloy surface chemical nickel plating in a kind of eutectic type ionic liquid | |
| CN101397692B (en) | Electroplating method | |
| CN102140667B (en) | Rear earth polyoxometallate silanization process for metal cathode before electrophoresis | |
| CN103924225A (en) | High tin bronze plating solution for chemical plating of surface of tempered bead wire, and its chemical dip plating method | |
| CN106048568A (en) | Environment-friendly chemical nickel plating method | |
| CN103014788B (en) | Cyanide-free alkaline copper-plating brightener and preparation method for same | |
| WO2015103786A1 (en) | Cyanide-free copper-preplating electroplating solution and preparation method therefor | |
| CN100476028C (en) | Low temperature chemcial plating nickel solution | |
| CN106894003A (en) | Without the thick gold method of cyanogen chemical plating and plating liquid making method on Ni-based material | |
| CN111778532A (en) | Alkaline zinc-nickel electroplating method for lock ring and embedded ring of automobile fuel tank | |
| CN105734622A (en) | Cyanide-free copper plating solution and preparation method thereof | |
| CN106894005B (en) | A kind of chemical bronze plating liquid, preparation method and a kind of method of Chemical Plating of Non metal Material | |
| CN106048567B (en) | A kind of method of chemical plating high phosphorus nickel-phosphor alloy | |
| WO2022170803A1 (en) | Electroplating solution for steel substrate direct cyanide-free plating under strong acidic conditions, and preparation method therefor | |
| CN104928735A (en) | Steel part cyanide-free electroplating tin bronze electroplating liquid and preparation method thereof | |
| CN103789803B (en) | A kind of without cyanogen gunmetal electroplate liquid and preparation method thereof | |
| CN102021543B (en) | Chemical nickel-plating solution containing composite complexing agent | |
| CN104928734A (en) | Method for electroplating steel part with tin bronze in cyanide-free mode | |
| CN102492967B (en) | Metal workpiece surface high-corrosion-resistance bright chromium plating technology | |
| CN110438508A (en) | A kind of chemical polishing solution and the polishing process using the chemical polishing solution | |
| CN110872706B (en) | Long-life high-corrosion-resistance chemical nickel solution and preparation and application thereof | |
| CN112853415A (en) | Nickel-phosphorus alloy electroplating solution and application thereof | |
| CN112251785A (en) | Method for processing special passivated surface of stainless steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |