CN87107893A - High-deposition nickel brush-plating solution and brush-plating technique thereof - Google Patents
High-deposition nickel brush-plating solution and brush-plating technique thereof Download PDFInfo
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- CN87107893A CN87107893A CN 87107893 CN87107893A CN87107893A CN 87107893 A CN87107893 A CN 87107893A CN 87107893 CN87107893 CN 87107893 CN 87107893 A CN87107893 A CN 87107893A CN 87107893 A CN87107893 A CN 87107893A
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Abstract
It is fast to the invention discloses a kind of sedimentation velocity, the hardness height, and quick brush nickel-plating liquid and technology that wear resistance is good, it is formulated that the brush nickel-plating liquid mainly contains nickelous chloride, aqua ammonia, organic acid, wetting agent.Its brush-plating technique is: preparation-outage wiping before the plating-operating voltage brush plating is to finished product.Plating bath of the present invention is reliable, technology is simple, coating is thick, quality is good, has simplified operating procedure, has brought convenience especially for the mechanize brushing plating manipulation.
Description
The present invention relates to a kind of improved quick brush plating nickel solution and brush-plating technique thereof, particularly a kind of soluble metal material that can use is made anodic high-deposition nickel brush-plating liquid and brush-plating technique thereof.Be suitable on steel, cast iron, copper and stainless steel, be used for resizing and make wearing layer.
Brush plating is the new technology at the local quick electrodeposition metal of workpiece surface.Brush plating is repaired the plating waste product for the part at first and is occurred, and has arrived after the fifties, is just studied and obtained patent as a kind of special technology.Be called Da Like technology (DALIC PROCESS) in Britain, France, be called brush plating (B-RUSH PLATING) or selective electroplating (SELECTIVE PLATING) in the U.S., the Soviet Union then claims to wipe plating or contact plating, once there was research in China before 6 or six years, but did not enter the practical stage, after 1979, some units successively introduce Way by Brush Plating Technique from the U.S., France, once be various titles such as coating, flash plate, bathless plating, after 8 or four years, unified called after " brush plating ".Because this technology is in increasing production and practising economy, repair the old and utilize scraps, aspect such as save energy has vital role, be subjected to the extensive attention of department such as military project, traffic, electronics, machinery, light industry and all respects such as historical relic reparation and artwork decoration, therefore be put into one of main project of China six or five～new technology spread during the Seventh Five-Year Plan period.
But, match the Way by Brush Plating Technique of the company of wound from the U.S., fast the sedimentation velocity of nickel is 12.7 microns/minute the soonest, and during domestic practical application, sedimentation velocity is 2.5 microns/minute.And all be to use insoluble material (as graphite or platinum iridium alloy etc.) to do anode.By experimental results demonstrate, though graphite anode has justifiable advantage to the brush plating of some noble metal and alloy thereof, and for the brush plating of plain metal, it is slow but to have sedimentation velocity, cost height, labour intensity are big, operating procedure complexity, defective such as thick plating ability is low.Therefore, certain unfavorable factor and difficulty have been brought to further applying this new technology.
Task of the present invention is that quick brush-plating solution of a kind of improved high-deposition nickel and brush-plating technique thereof will be provided, it can realize that sedimentation velocity is fast, coating and substrate combinating strength height, can plate the thickness coating more than a millimeter, free from environmental pollution, use metal to make anode, plating bath can be recycled, and easy to operate, saving of work and time.
Task of the present invention is finished as follows: a, preparation high-deposition nickel brush-plating solution, it is by nickelous chloride, ammonium hydroxide, organic acid, water, synthetic by certain dosage, wherein solution metal nickel is 75～120 grams per liters, for the further quality that improves coating, and best dosage is 100～110 grams per liters; Ammonium hydroxide is 80～120 grams per liters; Organic acid is 5～30 grams per liters; All the other are water.According to the requirement that improves coating performance, also can in plating bath, add 10～20 milliliters/liter of glycerol wetting agents in addition.B, preparing on the basis of solution, its brush-plating technique is: the preparation of workpiece before the plating, and need the position of brush plating to carry out the machining trimming to workpiece surface, electrochemical treatment-electricity is removed the oil film and the oxide film of workpiece surface only, washes with tap water then; Trial work part surface is wiped in outage, dips in brush-plating solution with the brush pen, and under cold situation, machinery is wiped the surface to be plated of trial work part; With operating voltage brush plating working-surface.
Embodiment:
A, weighing 420 grams six water nickelous chloride (NiCl
26H
2O), put into measuring cup, add hot water to 800 milliliter, be stirred to dissolving then and finish.
B, weighing 110 gram ammonium chlorides add in the solution, are stirred to dissolving.
C, weighing 20 gram organic acids add in the solution.
D, add gradually in the solution, the pH value of solution is adjusted between 1～1.5 with 1: 1 hydrochloric acid.
15 milliliters of e, adding glycerol wetting agents.
G, add water to 1000 milliliters, promptly be made into one liter of brush-plating solution of the present invention.
Shelf characteric: store usually more than 2 years, solution property meets the requirements.
The brush-plating technique of solution of the present invention is compared with at present general brush plating method, has reduced the brush plating transition zone and the technology of the wiping of cutting off the power supply for the second time, and concrete brush-plating technique is as follows:
Brush plating on mild steel: before the plating workpiece prepare → electricity is clean → running water washes → wash → use the brush plating liquid of the present invention wiping → brush plating working lining that cuts off the power supply with THY-1 type activating solution activation → running water, high-deposition nickel brush-plating solution, positive polarity, 8～12 volts of voltages, about 15 meters/1 minute, to specific thickness → water flushing.
Brush plating on cast iron, medium carbon steel, medium carbon alloy steel: mechanical finishing → tap water cleaning → electricity is clean → the water flushing → wash → No. 3 activation solution activation → usefulness brush-plating solutions of the present invention wiping → brush plating working lining → water flushing → finished product that cuts off the power supply with No. 2 activation solution activation → water.
Brush plating on copper and copper alloy: water cleaning → electricity is clean → outage wiping → brush plating working lining → water flushing → finished product.
Brush plating on old nickel dam: water cleaning → electricity is clean → oppositely activate voltage 5～7V → outage wiping → brush plating working lining with plating bath of the present invention.
Through using the test specimen of brush-plating solution of the present invention and technology brush plating, by the test to its performance, brushing coating hardness is HRC48～52, has good binding intensity with matrix metal, can satisfy the requirement of operating mode.
During brush plating workpiece of the present invention, sedimentation velocity is 20～30 microns/minute, and the fastest reaching more than 40 microns/minute is that the U.S. matches 3 times that create company's brush plating sedimentation velocity, and when generally using, then is 5～7 times of domestic common brush plating sedimentation velocity.Why the present invention has so high sedimentation velocity, be because plating solution performance of the present invention is stable, can use very high current density, can reach 400 peace/square decimeters, current efficiency is greater than 95%, so the sedimentation velocity of plating bath of the present invention is than fast about 100 times of the sedimentation velocity of general groove plating.General insoluble petal anode is when brush plating, because brush plating liquid is mobile poor, only with regard to graphite anode, under high current density, a large amount of graphite dusts are isolated in corrosion easily, the brush plating liquid concentration polarization is strengthened, simultaneously, near the bath temperature the anode rises, and the plating bath between anode and jacket produces the gasification layer, the structure of graphite anode can't exhaust, add insoluble anode when brush plating, anodic reaction produces a large amount of oxygen, also can not in time discharge, thereby use the insoluble petal material to do the brush plating anode, sedimentation velocity can not be very fast.And the present invention adopts the soluble metal material to make anode, does not produce bubble, and high-deposition nickel brush-plating solution of the present invention is arranged again, has therefore realized high speed brush plating, millimetre-sized thick plating.
Another obvious advantage of the present invention is: if need remove a part of coating the time, use reversible circulation get final product, if removal amount too much after, then can lead to the forward current brush plating again, do not influence quality of coating.
Brush plating liquid adaptability of the present invention is strong, does not produce metallics " poorness " phenomenon, if after sneaking into dirts such as oil, mud, sand in the plating bath, filter, regularly adjust pH value, but recirculation is used.
Claims (4)
1, a kind of high-deposition nickel brush-plating solution of being prepared by nickelous chloride, ammonium hydroxide, organic acid is characterized in that the metallic nickel in the brush-plating solution is 75～120 grams per liters, and ammonium hydroxide is 80～120 grams per liters, and organic acid is 5～30 grams per liters, and all the other are water.
2, high-deposition nickel brush-plating solution according to claim 1 is characterized in that the best dosage of metallic nickel in the brush plating liquid is 100～110 grams per liters.
3, high-deposition nickel brush-plating solution according to claim 1 and 2 is characterized in that being added with in the brush-plating solution glycerol wetting agent, and its dosage is 10～20 milliliters/liter.
4, a kind of brush-plating technique of high-deposition nickel brush-plating solution is characterized in that brush-plating technique is as follows:
The preparation of workpiece before a, the plating needs the position of brush plating to carry out machining trimming, electrochemical treatment-electricity only to workpiece surface, removes the oil film and the oxide film of workpiece surface, washes with tap water then.
Trial work part surface is wiped in b, outage, dips in brush-plating solution with brushing plating pen, is disconnecting under the situation of power supply, and machinery is wiped the surface to be plated of trial work part.
C, usefulness operating voltage brush plating work coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107893 CN87107893A (en) | 1987-11-11 | 1987-11-11 | High-deposition nickel brush-plating solution and brush-plating technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107893 CN87107893A (en) | 1987-11-11 | 1987-11-11 | High-deposition nickel brush-plating solution and brush-plating technique thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87107893A true CN87107893A (en) | 1988-06-01 |
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ID=4816283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87107893 Pending CN87107893A (en) | 1987-11-11 | 1987-11-11 | High-deposition nickel brush-plating solution and brush-plating technique thereof |
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| CN (1) | CN87107893A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8257572B2 (en) | 2008-03-28 | 2012-09-04 | Tenaris Connections Limited | Method for electrochemical plating and marking of metals |
| CN103397360A (en) * | 2010-06-25 | 2013-11-20 | 杨红宇 | Brush plating solution |
| CN103526240A (en) * | 2013-09-23 | 2014-01-22 | 中国人民解放军装甲兵工程学院 | Method for brushing electroplating chrome plating and carbon steel composite matrix |
| CN104651890A (en) * | 2015-02-27 | 2015-05-27 | 黑龙江科技大学 | Preparation method of low-cost high-corrosion-resistance Monel metal coating |
| CN115058746A (en) * | 2022-07-07 | 2022-09-16 | 中国人民解放军陆军装甲兵学院 | Metal coating, preparation method and application thereof |
-
1987
- 1987-11-11 CN CN 87107893 patent/CN87107893A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8257572B2 (en) | 2008-03-28 | 2012-09-04 | Tenaris Connections Limited | Method for electrochemical plating and marking of metals |
| CN103397360A (en) * | 2010-06-25 | 2013-11-20 | 杨红宇 | Brush plating solution |
| CN103526240A (en) * | 2013-09-23 | 2014-01-22 | 中国人民解放军装甲兵工程学院 | Method for brushing electroplating chrome plating and carbon steel composite matrix |
| CN103526240B (en) * | 2013-09-23 | 2016-06-22 | 中国人民解放军装甲兵工程学院 | Chrome plating and carbon steel complex matrix Brush Plating method |
| CN104651890A (en) * | 2015-02-27 | 2015-05-27 | 黑龙江科技大学 | Preparation method of low-cost high-corrosion-resistance Monel metal coating |
| CN115058746A (en) * | 2022-07-07 | 2022-09-16 | 中国人民解放军陆军装甲兵学院 | Metal coating, preparation method and application thereof |
| CN115058746B (en) * | 2022-07-07 | 2024-04-12 | 中国人民解放军陆军装甲兵学院 | Metal coating, preparation method and application thereof |
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