CN101922031A - Double-plating steel belt and plating process - Google Patents
Double-plating steel belt and plating process Download PDFInfo
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- CN101922031A CN101922031A CN 201010245016 CN201010245016A CN101922031A CN 101922031 A CN101922031 A CN 101922031A CN 201010245016 CN201010245016 CN 201010245016 CN 201010245016 A CN201010245016 A CN 201010245016A CN 101922031 A CN101922031 A CN 101922031A
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Abstract
The invention relates to a double-plating steel belt and a plating process, which is especially suitable for plating perforated steel belts and punched steel belts for manufacturing electrodes. The invention aims to solve the technical problems of high cost and low corrosion resistance of a steel belt on which a pure nickel layer is plated. The double-plating steel belt of the invention is characterized in that a nickel iron alloy plating of 2-4mu m is plated on a substrate steel belt, and a nickel layer of 0.5-2mu m is plated on the nickel iron alloy plating. In the invention, the nickel iron alloy plating part is used for replacing the pure nickel layer, thus the cost is lower; and simultaneously, in the plating method of the invention, a mode of dropping ferrous sulfate into a plating solution is used for replenishing the Fe2<+> ions consumed in the plating process, and the area ratio of an iron plate to a nickel plate of an anode does not need to be controlled, thus the process maintenance is simple.
Description
Technical field
The present invention relates to be coated with the double-plating steel belt and the electroplating technology of Rhometal layer/nickel coating, be specially adapted to the perforated steel ribbon of electrode manufacturing usefulness, the plating of Punching steel strip.
Background technology
The power supply manufacturing is extensive use of the following perforated steel ribbon of thickness 0.2mm, Punching steel strip as electrode connecting parts or skeleton, common electroplating thickness is the nickel dam of 3～5 μ m on the steel band, and purpose is in order to prevent that steel strip substrate steel band in electrode manufacturing processed and battery use is corroded.
There is the cost height in the plating pure-nickel-layer on the steel band, and the low problem of erosion resistance.
Summary of the invention
Technical problem to be solved by this invention is in order to reduce perforated steel ribbon, Punching steel strip nickel plating cost, to improve the steel band erosion resistance simultaneously.
Technical scheme of the present invention is: ferro-nickel alloy plating partly replaces pure nickel dam, is coated with the ferro-nickel alloy plating of 2-4 μ m on the matrix steel band; Be coated with the nickel dam of 0.5～2 μ m above the ferro-nickel alloy plating.
Wherein, iron-holder is 25～30% in the ferro-nickel alloy plating, and iron level can influence coating mechanical property (mainly be hardness, and internal stress), and the too high internal stress of iron level is big, is unfavorable for the electrode manufacturing.
Because double-deck coating have potential difference between ferro-nickel alloy plating and the nickel dam, and porosity is relatively low, therefore, when the generation corrosion, the preferential and middle ferro-nickel alloy plating of meeting reacts, thereby reaches the purpose of protection matrix, and the matrix corrosion resistance nature is improved.
Electro-plating method of the present invention is after steel band is cleaned out, electronickelling behind the first ferro-nickel alloy electroplating.
It should be noted that the present invention can not first nickel layer after the ferro-nickel alloy layer because Rhometal can produce yellow spotting on the surface, adopt behind the first ferro-nickel alloy layer method of nickel plating can avoid producing yellow spotting (corrosion product of iron).
In order to eliminate a last operation solution, avoid subsequent processing is impacted, or influence the last visual appearance of coating, can after each operation, increase cleaning step.
Wherein, the cleaning steel strip surface can adopt rusty stain and the oxide skin that existing method is deoiled and piece surface is plated in the acid etch removing.
The technology that plating nickel on surface iron-zinc alloy coatings such as bicycle rim, copper coin are arranged in the prior art, usually adopt the combined anode of nickel plate+pure iron plate, adopt the area ratio of nickel plate, pure iron plate to control the ratio of nickel ion and iron ion in the electroplating solution, have the problem of operational difficulty.And, a ferro-nickel alloy, coating corrosion resistance deficiency, the surface can very fast generation yellow spotting (corrosion product of iron).
Ferro-nickel alloy electroplating of the present invention does not adopt the combined anode of existing nickel plate+pure iron, is single anode and adopt the nickel plate, adopts to drip FeSO in electrolytic solution
4The mode of solution is replenished the iron that consumes in the electrolytic process, and is by the ratio of nickel ion and iron ion in the rate of addition control electrolytic solution, simple to operate.
The electroplating solution prescription is:
NiSO
4·7H
2O?220～250g/L；
H
3BO
330～40g/L；
NaC10～15g/L；
FeSO
4·7H
2O?25～35g/L；
Sodium lauryl sulphate 0.1～0.3g/L;
Stablizer a small amount of (stablizer used herein generally adopts xitix 1～2g/L, also can use commercially available commodity stablizer, as the BH stablizer of Guangzhou the second light industry bureau production).Can also use citric acid, gluconic acid, tartrate and composite mixture thereof.
Adopting the purpose of stablizer is to avoid the ferrous ion in the plating bath to be oxidized to ferric ion, thereby causes coating fragility to increase, and mechanical property reduces, even produces burr.
It is that 20%～25% solution slowly splashes in the electroplating solution that ferrous sulfate is configured to concentration, replenishes the Fe that consumes in the electroplating process
2+Ion makes Fe
2+Concentration maintains 5～7g/L.
One of embodiment, during ferro-nickel alloy electroplating, at the other intake chute that is provided with of coating bath, plating tank and intake chute by two liquid delivery tubes together with, form circulation continuously; Copperas solution is finished dropping at intake chute, is delivered to plating tank by circulation tube and replenishes the Fe that consumes in the electrolytic process
2+, see Fig. 1 for details.
In order to prevent that burr and pin hole from appearring in coating, in the middle of the liquid delivery tube together with plating tank and intake chute filtration unit is set, make to enter intake chute again behind the electroplate liquid solids removed by filtration impurity in the plating tank; Simultaneously, it is reinforced that intake chute is finished copperas solution, enters plating tank after the filtration again.
Wherein, electroplating temperature is advisable at 50～70 ℃, current density 2～10A/dm
2, tape running speed can will be adjusted according to required electrolytic coating thickness.Temperature is low excessively, and electroplating velocity is slow, burns easily, and temperature is too high, the easy oxygenolysis of stablizer, and ferrous iron is oxidized to ferric iron easily.
The power supply of electroplating usefulness can adopt high frequency switch power or other power supply.
Wherein, electronickelling can be adopted general electronickelling prescription and electronickelling technology.
During concrete enforcement, steel plate through deoil, water cleans, the anode and cathode co-electrolysis deoils, water cleaning, acid etch, water cleaning, ferro-nickel alloy electroplating, water cleaning, electronickelling, water are cleaned, alkali neutralization, dry, rolling.
Beneficial effect of the present invention:
Ferro-nickel alloy plating partly replaces pure nickel dam cost lower (iron-holder is 25～30% in the ferro-nickel alloy plating, and the price of iron is very cheap, and price is about 4 yuan/kg at present, and the price of nickel is higher, is about 190 yuan/kg at present).
In addition, electro-plating method of the present invention, the employing ferrous sulfate splashes into the mode in the electroplating solution, replenishes the Fe that consumes in the electroplating process
2+Ion does not need to control the area ratio of anodic iron plate and nickel plate, and process maintenance is simple.
Embodiment
An embodiment of the invention may further comprise the steps:
(1) deoil: adopt all kinds of acidity or alkaline degreasing solution all can, purpose is to remove the greasy dirt of steel strip surface.
(2) water cleans;
(3) the anode and cathode co-electrolysis deoils;
(4) water cleans;
(5) acid etch; Purpose is rusty stain and the oxide skin of removing by the plating piece surface;
(6) water cleans;
(7) ferro-nickel alloy electroplating: the electroplating solution prescription is NiSO
47H
2O 220～250g/L; H
3BO
330～40g/L; NaCl0～15g/L, FeSO
47H
2O 25～35g/L, sodium lauryl sulphate 0.1～0.3g/L, stablizer is a small amount of, and (stablizer used herein generally adopts xitix 1～2g/L, also can use commercially available commodity stablizer, BH stablizer as the production of Guangzhou the second light industry bureau) temperature is 50～70 ℃, current density 2～10A/dm
2, tape running speed can will be adjusted according to thickness.Anode material adopts single sheet nickel, and it is 20%～25% the solution adding electroplating solution that slowly instils that ferrous sulfate is configured to concentration.The power supply of electroplating usefulness is high frequency switch power but is not limited to high frequency switch power.
Metallic nickel has very strong passivation ability, in order to prevent the nickel anode passivation, adds the anode promoting agent, can promote anode dissolution, guarantees that the normal of nickel ion replenishes.Usually with NaCl, nickelous chloride etc., when anode nickel becomes nickel ion and leaves anode, since the existence of chlorion, very fast formation nickelous chloride, and the nickelous chloride good water solubility makes nickel ion be diffused into plating bath inside rapidly from the positive column like this, thus prevent anode passivation.But adding too much to make anode dissolution too fast.
Adding tensio-active agents such as sodium lauryl sulphate, n-octyl sodium sulfate is in order to prevent that coating from producing pin hole, to add the too much very few coating surface that all can make and grow dim.
Boric acid H
3BO
3Be buffer reagent, have the effect of stablizing the pH value, the pH value is controlled at 3.0～5.0 (preferred 3.5～4.5).But the amount of boric acid too much can cause burr and coarse.
(8) water cleans
(9) electronickelling: can adopt general electronickelling prescription and technology electronickelling 0.5～2 μ m.
(10) water cleans
(11) neutralization: steel band is passed through from the pH value is 8～12 basic solution.Purpose is that steel strip surface is neutralized into alkaline state, prevents corrosion in storage, the use.
(12) drying: steel band drawn in the baking oven pass through, oven dry.
(13) rolling.
Below mode by specific embodiment the present invention is further described.
Embodiment 1: electroplating thickness is 0.1mm, and width is the perforated steel ribbon of 23mm
(1) deoil: adopt all kinds of acidity or alkaline degreasing solution all can, purpose is to remove the greasy dirt of steel strip surface.
(2) water cleans;
(3) the anode and cathode co-electrolysis deoils;
(4) water cleans;
(5) acid etch;
(6) water cleans;
(7) ferro-nickel alloy electroplating: the electroplating solution prescription is NiSO
47H
2O 220g/L; H
3BO
330g/L; NaCl 12g/L, FeSO
47H
2O 28g/L, sodium lauryl sulphate 0.1g/L, BH stablizer 18ml/L, 55 ℃ of temperature, current density 5A/dm
2, electroplating time 3min.
Rhometal thickness 2.3 μ m.
(8) water cleans
(9) electronickelling: general electronickelling prescription and technology electronickelling 0.5～2 μ m
(10) water cleans
(11) neutralization: steel band is passed through from the pH value is 8～12 basic solution.
(12) drying: steel band drawn in the baking oven pass through, oven dry.
(13) rolling.
Steel band is immersed in 7d in 20% the sodium hydroxide solution, temperature is controlled at 65 ± 2 ℃, and coating does not have corrosion.
It is qualified that bend test method detects the steel band bonding force.
Embodiment 2: electroplating thickness is 0.1mm, and width is the Punching steel strip of 180mm
(1) deoil: adopt all kinds of acidity or alkaline degreasing solution all can, purpose is to remove the greasy dirt of steel strip surface.
(2) water cleans;
(3) the anode and cathode co-electrolysis deoils;
(4) water cleans;
(5) acid etch;
(6) water cleans;
(7) ferro-nickel alloy electroplating: the electroplating solution prescription is NiSO
47H
2O240g/L; H
3BO
332g/L; NaCl 14g/L, FeSO
47H
2O31g/L, sodium lauryl sulphate 0.2g/L, xitix 1.5g/L) 65 ℃ of temperature, current density 8A/dm
2, electroplating time 2min.
Rhometal thickness is 3.1 μ m.
(8) water cleans
(9) electronickelling: general electronickelling prescription and technology electronickelling 0.5～2 μ m
(10) water cleans
(11) neutralization: steel band is passed through from pH value is 8～12 basic solution.
(12) drying: steel band drawn in the baking oven pass through, oven dry.
(13) rolling.
Steel band is immersed in 7d in 20% the sodium hydroxide solution, temperature is controlled at 65 ± 2 ℃, and coating does not have corrosion.
It is qualified that bend test method detects the steel band bonding force.
Embodiment 3: electroplating thickness is 0.1mm, and width is the perforated steel ribbon of 160mm
(1) deoil: adopt all kinds of acidity or alkaline degreasing solution all can, purpose is to remove the greasy dirt of steel strip surface.
(2) water cleans;
(3) the anode and cathode co-electrolysis deoils;
(4) water cleans;
(5) acid etch;
(6) water cleans;
(7) ferro-nickel alloy electroplating: the electroplating solution prescription is NiSO
47H
2O245g/L; H
3BO
335g/L; NaCl 13g/L, FeSO
47H
2Og/L, sodium lauryl sulphate 0.15g/L, xitix 1.8/L) 62 ℃ of temperature, current density 5A/dm
2, electroplating time 3min.
Rhometal thickness is 2.5 μ m.
(8) water cleans
(9) electronickelling: general electronickelling prescription and technology electronickelling 0.5～2 μ m
(10) water cleans
(11) neutralization: steel band is passed through from pH value is 8～12 basic solution.
(12) drying: steel band drawn in the baking oven pass through, oven dry.
(13) rolling.
Steel band is immersed in 7d in 20% the sodium hydroxide solution, temperature is controlled at 65 ± 2 ℃, and coating does not have corrosion.
It is qualified that bend test method detects the steel band bonding force.
Claims (10)
1. double-plating steel belt is characterized in that: the ferro-nickel alloy plating that is coated with 2-4 μ m on the matrix steel band; Be coated with the nickel dam of 0.5～2 μ m above the ferro-nickel alloy plating.
2. double-plating steel belt according to claim 1 is characterized in that: iron-holder is 25～30% in the ferro-nickel alloy plating.
3. the electroplating technology of the described double-plating steel belt of claim 1 is characterized in that: after steel strip surface is cleaned out, and electronickelling behind the first ferro-nickel alloy electroplating.
4. electroplating technology according to claim 3 is characterized in that: it is single anode that ferro-nickel alloy electroplating coating adopts the nickel plate, by drip FeSO in electrolytic solution
4The mode of solution is replenished the Fe that consumes in the electrolytic process
2+, make Fe
2+Concentration maintains 5～7g/L.
5. electroplating technology according to claim 4 is characterized in that: during ferro-nickel alloy electroplating, at the other intake chute that is provided with of coating bath, plating tank and intake chute by two liquid delivery tubes together with, form circulation continuously; Copperas solution is finished dropping at intake chute, is delivered to plating tank by circulation tube and replenishes the Fe that consumes in the electrolytic process
2+
6. electroplating technology according to claim 5 is characterized in that: together with in the middle of the liquid delivery tube of plating tank and intake chute filtration unit is set, makes to enter intake chute again behind the electroplate liquid solids removed by filtration impurity in the plating tank; Simultaneously, it is reinforced that intake chute is finished copperas solution, enters plating tank after the filtration again.
7. electroplating technology according to claim 6 is characterized in that: by dripping FeSO
4Fe in the speed control electrolytic solution of solution
2+Concentration.
8. electroplating technology according to claim 7 is characterized in that: the FeSO of dropping
4The mass percent concentration of solution is 20%～25% solution.
9. according to each described electroplating technology of claim 3-8, it is characterized in that: the electroplating solution prescription is during ferro-nickel alloy electroplating:
NiSO
4·7H
2O?220～250g/L；
H
3BO
330～40g/L；
NaC10～15g/L；
FeSO
4·7H
2O?25～35g/L；
Sodium lauryl sulphate 0.1～0.3g/L;
Stablizer is a small amount of, and described stablizer is xitix, BH stablizer, citric acid, gluconic acid, tartrate or its composite mixture, preferred xitix 1～2g/L.
10. according to the described electroplating technology of claim 3-9, it is characterized in that: 50～70 ℃ of electroplating temperatures, current density 2～10A/dm
2
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|---|---|---|---|
| CN2010102450160A CN101922031B (en) | 2010-08-04 | 2010-08-04 | Double-plating steel belt and plating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102450160A CN101922031B (en) | 2010-08-04 | 2010-08-04 | Double-plating steel belt and plating process |
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|---|---|
| CN101922031A true CN101922031A (en) | 2010-12-22 |
| CN101922031B CN101922031B (en) | 2012-05-30 |
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|---|---|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015032347A (en) * | 2013-07-31 | 2015-02-16 | 東洋鋼鈑株式会社 | Method for manufacturing surface-processed steel plate for battery containers |
| CN105506698A (en) * | 2016-02-19 | 2016-04-20 | 苏州市华婷特种电镀有限公司 | Electroplating piece with nickel coating on surface |
| CN106205856A (en) * | 2015-05-28 | 2016-12-07 | 昭和电线电缆系统株式会社 | The manufacture method of oxide superconducting wire rod |
| CN108471857A (en) * | 2016-01-19 | 2018-08-31 | Yc本来株式会社 | The manufacturing method of comb |
| CN109576745A (en) * | 2019-01-31 | 2019-04-05 | 徐九生 | A kind of manufacture craft of conducting sphere |
| CN109868952A (en) * | 2017-12-02 | 2019-06-11 | 鹤山市鸿图铁艺实业有限公司 | A kind of manufacturing process of guardrail metal tube |
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| JPH02263990A (en) * | 1989-04-04 | 1990-10-26 | Yamaha Corp | Electroplating method for iron-nickel alloy plating film |
| CN101532155A (en) * | 2009-02-26 | 2009-09-16 | 上海造币有限公司 | Application process of multi-layer electroplated coinage materials and products thereof |
| CN101760767A (en) * | 2009-12-03 | 2010-06-30 | 四川长虹电器股份有限公司 | Method for electroplating steel strip with nickel |
-
2010
- 2010-08-04 CN CN2010102450160A patent/CN101922031B/en not_active Expired - Fee Related
Patent Citations (3)
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|---|---|---|---|---|
| JPH02263990A (en) * | 1989-04-04 | 1990-10-26 | Yamaha Corp | Electroplating method for iron-nickel alloy plating film |
| CN101532155A (en) * | 2009-02-26 | 2009-09-16 | 上海造币有限公司 | Application process of multi-layer electroplated coinage materials and products thereof |
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| Title |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015032347A (en) * | 2013-07-31 | 2015-02-16 | 東洋鋼鈑株式会社 | Method for manufacturing surface-processed steel plate for battery containers |
| CN105431958A (en) * | 2013-07-31 | 2016-03-23 | 东洋钢钣株式会社 | Method for producing surface-treated steel sheet for battery containers |
| CN105431958B (en) * | 2013-07-31 | 2018-07-06 | 东洋钢钣株式会社 | The manufacturing method of battery case surface treated steel plate |
| US10030283B2 (en) | 2013-07-31 | 2018-07-24 | Toyo Kohan Co., Ltd. | Method for producing surface-treated steel sheet for battery containers |
| CN106205856A (en) * | 2015-05-28 | 2016-12-07 | 昭和电线电缆系统株式会社 | The manufacture method of oxide superconducting wire rod |
| CN106205856B (en) * | 2015-05-28 | 2019-07-16 | 昭和电线电缆系统株式会社 | The manufacturing method of oxide superconducting wire rod |
| CN108471857A (en) * | 2016-01-19 | 2018-08-31 | Yc本来株式会社 | The manufacturing method of comb |
| CN105506698A (en) * | 2016-02-19 | 2016-04-20 | 苏州市华婷特种电镀有限公司 | Electroplating piece with nickel coating on surface |
| CN109868952A (en) * | 2017-12-02 | 2019-06-11 | 鹤山市鸿图铁艺实业有限公司 | A kind of manufacturing process of guardrail metal tube |
| CN109576745A (en) * | 2019-01-31 | 2019-04-05 | 徐九生 | A kind of manufacture craft of conducting sphere |
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|---|---|
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