CN101705508A - Plating liquid for plating micro-crack nickel and use thereof - Google Patents

Plating liquid for plating micro-crack nickel and use thereof Download PDF

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Publication number
CN101705508A
CN101705508A CN200910154747A CN200910154747A CN101705508A CN 101705508 A CN101705508 A CN 101705508A CN 200910154747 A CN200910154747 A CN 200910154747A CN 200910154747 A CN200910154747 A CN 200910154747A CN 101705508 A CN101705508 A CN 101705508A
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China
Prior art keywords
nickel
liter
bright
milliliters
grams per
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CN200910154747A
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Chinese (zh)
Inventor
邵建荣
蒋晓东
茹维锋
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NINGBO SWELL AUTO DECORATIONS CO Ltd
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NINGBO SWELL AUTO DECORATIONS CO Ltd
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Priority to CN200910154747A priority Critical patent/CN101705508A/en
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Abstract

The invention discloses plating liquid for plating micro-crack nickel and use thereof. One liter of the plating liquid mainly comprises the following components: 180 to 260 grams of nickel chloride, 20 to 60 milliliters of acetic acid, 80 to 120 milliliters of ELPELYT MR and 1 to 5 milliliters of 62A. In the invention, the plating liquid is used for plating micro-crack nickel on the surface of a plastic piece, and the plating process uses the plastic piece as a substrate and comprises the following steps: A, plastic surface metallization; B, bright copper plating; C, semibright nickel plating; bright nickel plating; E, washing with water; F, micro-crack nickel plating; G, washing with water; bright chromium plating; I, washing; J, washing with hot water; and K, drying. The invention provides a novel formula for the liquid plating. According to the formula, the plastic piece can generate micro cracks in a nickel bath, the anticorrosion performance of the plastic piece is improved obviously, the product does not decay in a cold environment, and the service life of the plastic piece is prolonged.

Description

A kind ofly be used for galvanized electroplate liquid of micro-crack nickel and application thereof
(1) invention field
The present invention relates to a kind of be used for galvanized electroplate liquid of micro-crack nickel and application thereof, especially its application in plastic component crizzle nickel is electroplated.
(2) background technology
The general application plated the antiseptic power that the chromed again method of double-deck nickel or MULTI-LAYER NICKEL improves workpiece earlier on the electroplating industry, and the double-deck nickel technology that is widely used has: half light nickel+bright nickel+flawless chromium.But because the stress of chromium layer self is big, industrially be difficult to obtain a kind of chromium layer that does not have crackle or hole fully, after being exposed to airborne chromium layer and being passivated, its current potential than nickel just, during corrosive medium in running into atmosphere, just constitute a corrosion cell with nickel dam, nickel is anode in this battery, chromium is negative electrode, compares with the negative electrode that the successive area is bigger, and the nickel hot spot of exposure is very little, so just formed the erosion model of so-called big negative electrode primary anode, because of the corrosion current high concentration on anode, thereby quickened pitting corrosion speed and inwardly development form the hole point, even cause perforation.
The researchist finds that in decorative and protective MULTI-LAYER NICKEL-chromium or copper-nickel-chromium plating system, tiny crack chromium shows excellent resistance to corrosion.During operation, generally be to plate the heavily stressed nickel of skim (about 1 μ m) on bright nickel, electroplate the chromium layer of 0.25~0.3 μ m again in common chromium plating liquid, heavily stressed nickel chaps into micro-crack nickel, makes chromium coating more produce diffract tiny crack chromium.To this, report is arranged all among US3563864 and the FR1447970.But, in aforesaid method, the chrome-plating process after the formation of micro-crack nickel need depend on.In order to reduce this dependency, be necessary to study a kind of method that in the nickel groove, can produce tiny crack.
US3761363 discloses a kind of micro-crack nickel plating tank and electro-plating method, promptly produces tiny crack in the nickel electroplating process.In the disclosed nickel plating tank,, also added polyamines in this patent as the tiny crack additive except inorganic nickel.
Because the plastic electroplating goods have the aesthetic appearances of in light weight, the easy-formation and the metal plating of plastics concurrently, thereby plastic electroplating is widely used in the production of the component and the plumbing of automobile, motorcycle, household electrical appliance.In recent years because the development of Domestic Automotive Industry, quality is higher for requiring, longer service life and to have the demand of automobile component of high resistance to corrosion more and more, driven the demand of market, as product on various labels, ornamental strip, radiator grid, door handle and a series of bathroom on the automobile etc. to high-quality plastic electroplating goods.
The plating of existing plastics generally is to adopt micropore nickel technology, and it mainly is the product that forms the micropore shape on the surface, and corrosion resistance is preferably also arranged.But the galvanized part of micropore nickel technology is easy to occur corrosion phenomenon in the surface at low temperatures, and in the European countries of cold, this situation is more serious especially, and this has had a strong impact on the automobile overall appearance, directly causes the human consumer very big discontented.So, be necessary to develop a kind of electroplating technology of novel plastic component surface, so that plastic component still has excellent resistance to corrosion in cold environment.
(3) summary of the invention
The primary technical problem that the present invention will solve provides a kind of galvanized electroplate liquid of micro-crack nickel that is used for, and this electroplate liquid can form the micro-crack nickel with excellent resistance to corrosion on the plating piece surface.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of galvanized electroplate liquid of micro-crack nickel that is used for, described electroplate liquid is a solvent with water, main component and concentration thereof in the electroplate liquid are expressed as follows:
Nickelous chloride 180~260 grams per liters
20~60 milliliters/liter of acetic acid
80~120 milliliters/liter of tiny crack promoting agents
1~5 milliliter/liter of wetting agent
Tiny crack promoting agent of the present invention is ELPELYT MR (production of U.S. Le Si company).
Described wetting agent is 62A (production of U.S. Le Si company).
The pH value of electroplate liquid of the present invention preferably is controlled at 3.6~4.2, more preferably 3.6-4.1.Usually use ammoniacal liquor and acetic acid to regulate the pH value of electroplate liquid.
Further, the main component of preferred electroplate liquid of the present invention and concentration thereof are expressed as follows:
Nickelous chloride 210~230 grams per liters
30~50 milliliters/liter of acetic acid
90~110 milliliters/liter of ELPELYT MR
2~4 milliliters/liter of 62A
Second technical problem that the present invention will solve is that above-mentioned electroplate liquid is applied in the plastic component crizzle nickel electroplating technology, earlier on part, form metal conductive film by the plastic component surface metalation, make copper, double-deck nickel, micro-crack nickel, chromium deposition at piece surface with plating mode then, form evenly, crizzle shape, bonding force good metal layer, this metal level has high erosion-resisting ability.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
The application of electroplate liquid of the present invention in plastic component crizzle nickel is electroplated, described application are to be base material with the plastic component, comprise following 11 steps: A plastic component surface metalation, the B bright copper, C half bright nickel, D bright nickel, E washing, the F micro-crack nickel, the G washing, H light chromium, I washing, the J hot water wash, the K drying; The electroplate liquid of described step F micro-crack nickel is solvent with water, and the main component and the concentration thereof of electroplate liquid are expressed as follows:
Nickelous chloride 180~260 grams per liters
20~60 milliliters/liter of acetic acid
80~120 milliliters/liter of tiny crack promoting agents
1~5 milliliter/liter of wetting agent
Described tiny crack promoting agent is ELPELYT MR; Described wetting agent is 62A;
The processing parameter of described step F micro-crack nickel is:
23~31 ℃ of temperature
PH value 3.6~4.2
1~3 minute time
Current density 3~10A/dm 2
The present invention is after the step F micro-crack nickel is handled, and the nickel dam that plates netted shape on product, thickness be at 1~3 micron, its density be 200~600 tiny cracks/centimetre.
Further, the present invention has obtained the tiny crack of reticular pattern after the processing of steps A~step I on plastic substrate, and this tiny crack need make it really have anti-corrosion effects through hot-water cure to activate.The present invention recommends described step J hot water wash specifically to carry out according to following: adopt specific conductivity to be controlled at the following RO water of 10 little siemens/square centimeters and wash, controlled temperature is 60~70 ℃, and the washing time is 2~5 minutes.
Preferred ABS of plastic component of the present invention or ABS+PC material.
The described plastic component surface metalation of steps A of the present invention adopts prior art: through the pre-treatment of common plastics electroplating technology, form the electroless nickel layer of 1~3 micron thickness in the chemical nickel groove.
Step B of the present invention is the copper layer that forms bright look on the plating piece surface through obtaining after the processing of step A, and the copper layer thickness of preferred light light tone is between 15~35 microns.Step B can adopt conventional bright copper technology, and the present invention specifically recommends concrete bright copper processing step to be: will enter the bright copper groove through the plating piece of processing of step A, the electroplate liquid in the bright copper groove is with water solvent, and the main component of electroplate liquid and concentration thereof are:
Copper sulfate 150~250 grams per liters
Sulfuric acid 40~80 grams per liters
Chlorion 20~100 mg/litre
5~15 milliliters/liter of 1541 make up
0.1~0.5 milliliter/liter of 1541 leveter
0.1~0.5 milliliter/liter of 1541 maintenance
In the bright copper electroplating process, be anode with the phosphorous copper balls, service temperature is between 22~33 ℃, and current density is 2~4A/dm 2, the operating time was deposited on the plating piece surface copper by the electrolytic mode of direct current between 35~55 minutes, formed the copper layer of the bright look of thickness between 15~35 microns.
Step C of the present invention forms the partly nickel dam of bright look on through the plated item surface after the step B processing, the nickel layer thickness of preferred half bright look is between 10~20 microns.Step C can adopt half conventional bright nickel technology, and the concrete recommendation step C of the present invention adopts following processing step: handle the plated item that obtains through step B and directly enter the semi-bright nickel groove, wherein electroplate liquid is solvent with water, and the main component of electroplate liquid and concentration thereof are:
Single nickel salt 250~350 grams per liters
Nickelous chloride 30~60 grams per liters
Boric acid 30~60 grams per liters
8~12 milliliters/liter of BTL MU
0.2~1 milliliter/liter of TL-2
0.1~0.5 milliliter/liter of BTL-B
1~2 milliliter/liter of 62A
In half light nickel electroplating process, service temperature is controlled between 50~60 ℃, and the pH value is controlled between 3.6~4.5, and current density is 2~4A/dm 2, the operating time was controlled between 12~24 minutes, made nickel deposition on the plated item surface by the electrolytic mode of direct current, formed the nickel dam of the half bright look of thickness between 10~20 microns.Usually use dilute sulphuric acid to regulate the pH of electroplate liquid.
Step D of the present invention is the nickel dam that forms bright look on the plated item surface after the process step C processing, and the nickel layer thickness of preferred light light tone is between 10~20 microns.Step D can adopt conventional bright nickel technology, and the present invention specifically recommends to adopt following processing step: the plated item after step C handles enters the bright nickel groove, and wherein electroplate liquid is solvent with water, and the main component of electroplate liquid and concentration thereof are:
Single nickel salt 250~350 grams per liters
Nickelous chloride 40~70 grams per liters
Boric acid 30~60 grams per liters
5~10 milliliters/liter of 610CFC
63 10~20 milliliters/liter
1~2 milliliter/liter of 66E
1~2 milliliter/liter of 62A
In the bright nickel electroplating process, service temperature is controlled between 52~62 ℃, and the pH value is controlled between 3.6~4.5, and current density is 2~4A/dm 2, the operating time was controlled between 12~24 minutes, made nickel deposition on the plated item surface by the electrolytic mode of direct current, formed the nickel dam of the bright look of thickness between 10~20 microns.Usually use dilute sulphuric acid to regulate the pH of electroplate liquid.
After the bright nickel step, need plated item is washed, main effect is that the liquid medicine that the bright nickel troughed belt comes out to remain on the product surface is thoroughly cleaned up, and one is afraid of to pollute the liquid medicine of back operation, and two can have influence on whole electroplating effect.Usually plated item is entered one by one three washing baths, its major ingredient is exactly a clear water, but this clear water must be through the RO water that generates behind the RO membrane reverse osmosis, its specific conductivity should be controlled at 10 little siemens/square centimeters following (common natural water is between 100~200 little siemens/square centimeters), 1~3 minute operating time, operation is at room temperature carried out usually.
The present invention is after the step F micro-crack nickel is electroplated, also need plated item is washed, main effect is that the liquid medicine that the micro-crack nickel troughed belt comes out to remain on the product surface is thoroughly cleaned up, one is afraid of to pollute the liquid medicine of back operation, two can have influence on whole electroplating effect, especially contain a large amount of chlorions in the micro-crack nickel groove, very harmful to follow-up chrome-plating bath, and be difficult to remove.So usually plated item is entered one by one three washing baths, its major ingredient is exactly a clear water, but this clear water must be through the RO water that generates behind the RO membrane reverse osmosis, its specific conductivity should be controlled at 10 little siemens/square centimeters following (common natural water is between 100~200 little siemens/square centimeters), 1~3 minute operating time, operation is at room temperature carried out usually.
Step H of the present invention is the chromium layer that forms the ornamental extraordinary bright look of one deck on the plated item surface after the process step G processing, and the chromium layer thickness of preferred light light tone is between 0.8~1.5 micron.Described step H can adopt conventional bright chromium process, the present invention specifically recommends to adopt the described step H of following processing step specifically according to following operation: the plated item after step G handles enters bright chromium groove, wherein electroplate liquid is solvent with water, and the main component of electroplate liquid and concentration thereof are:
Chromic acid 250~320 grams per liters
Sulfuric acid 0.8~1.4 grams per liter
25~35 milliliters/liter of 1120F
25~35 milliliters/liter of 1120G
Trivalent chromium 1~3 grams per liter
In the light chromium electroplating process, service temperature is controlled between 33~43 ℃, and current density is 5~12A/dm 2, the operating time was controlled between 10~15 minutes, plated the chromium layer of one deck light look on the plated item surface, and its thickness is between 0.8~1.5 micron.
Plated item also needs to wash after coming out from bright chromium groove, mainly is that the liquid medicine that bright chromium troughed belt comes out to remain on the product surface is thoroughly cleaned up.Usually plated item is entered one by one three washing baths, its major ingredient is exactly a clear water, but this clear water must be through the RO water that generates behind the RO membrane reverse osmosis, its specific conductivity should be controlled at 10 little siemens/square centimeters following (common natural water is between 100~200 little siemens/square centimeters), 1~3 minute operating time, operation is at room temperature carried out usually.
Plated item is after step J hot water wash, the present invention carries out drying treatment by step K to it, mainly be to dry the clear water on the product surface, part finishes with regard to all electroplating like this. and drying can be carried out in baking oven usually, service temperature is controlled between 55~70 ℃, and the operating time was controlled between 30~40 minutes.
Among the present invention, ELPELYT MR, 1541 make, 1541 leveter, 1541maintenance, BTL MU, TL-2, BTL-B, 62A, 610 CFC, 63,66E, 1120F, 1120G etc. are the product code names that U.S. Le Si company produces.
Compared with prior art, beneficial effect of the present invention is:
(1) the invention provides a kind of new plating solution formula, can make plating piece in the nickel groove, form tiny crack, improve the antiseptic property of plating piece by this plating solution formula.
(2) the present invention plates even, netted shape, the good nickel dam of bonding force on plastic component, compare other common electrical depositing process, make the erosion resistance of plastic component obviously be eager to excel, under the environment of cold, guarantee that product not by rotten, has also prolonged the work-ing life of plastic component.
(4) description of drawings
Fig. 1 is that common micropore nickel electroplating technology product surface is the figure of the point of small pore-like.
Fig. 2 is the bar graph that micro-crack nickel handicraft product surface is netted shape.
Fig. 3 is that corroded area involves whole prod figure.
Fig. 4 is the local corrosion area-graph.
Fig. 5 is the process flow sheet that the embodiment of the invention adopts.
(5) embodiment
Below with specific embodiment technical scheme of the present invention is described, but protection scope of the present invention is not limited thereto:
The micro-crack nickel electroplating technology, its process flow sheet as shown in Figure 5.
Embodiment 1
A pre-treatment metallization through the pre-treatment of common ABS plastic electroplating technology, forms the process of the electroless nickel layer of about 2 micron thickness in the chemical nickel groove, part becomes metalwork by plastic component can carry out the back plating smoothly.
The B bright copper will be put into the bright copper groove through the A pre-treatment described part that metallized, and its electroplate liquid is formed and technological specification is:
Copper sulfate 200 grams per liters
Sulfuric acid 50 grams per liters
Chlorion 60 mg/litre
10 milliliters/liter of 1541 MAKE UP
0.3 milliliter/liter of 1541 LEVETER
0.3 milliliter/liter of 1541 MAINTENANCE
26 ℃ of temperature
41 minutes time
Current density 3A/dm 2
With the phosphorous copper balls is anode, makes copper be deposited on the copper layer that forms about about the 20 microns bright look of thickness on the described plated item surface by the electrolytic mode of direct current.
C half bright nickel will be put into the semi-bright nickel groove through the described plated item that the B bright copper is handled, and its electroplate liquid is formed and technological specification is:
Single nickel salt 300 grams per liters
Nickelous chloride 45 grams per liters
Boric acid 45 grams per liters
10 milliliters/liter of BTL MU
0.5 milliliter/liter of TL-2
0.3 milliliter/liter of BTL B
1.5 milliliters/liter of 62A
55 ℃ of temperature
PH value 3.8
15 minutes time
Current density 3A/dm 2
Make nickel deposition at the nickel dam that forms the half bright look of thickness about 12 microns on the piece surface by the electrolytic mode of direct current.
The D bright nickel will enter the bright nickel groove through the described plated item that C half bright nickel is handled, and its electroplate liquid is formed and technological specification is:
Single nickel salt 300 grams per liters
Nickelous chloride 50 grams per liters
Boric acid 45 grams per liters
7 milliliters/liter of 610CFC
63 15 milliliters/liter
1.5 milliliters/liter of 66E
1.5 milliliters/liter of 62A
57 ℃ of temperature
PH value 4
15 minutes time
Current density 3A/dm 2
Make nickel deposition at the nickel dam that forms the bright look of thickness about 10 microns on the piece surface by the electrolytic mode of direct current.
The E washing, described plated item enters three washing baths more one by one, in the described tank RO water that generates through behind the RO membrane reverse osmosis, its specific conductivity is 5 little siemens/square centimeters, the operation controlled temperature is a room temperature, operating time is 2 minutes, and main effect is thoroughly to clean up bring out the liquid medicine that remains on the product surface from the bright nickel groove.
The F micro-crack nickel
Described plated item enters the micro-crack nickel groove of critical process, is divided into three different operating technologies and compares.
Operating procedure 1, electroplate liquid form and technological specification is:
Nickelous chloride 220 grams per liters
40 milliliters/liter of acetic acid
100 milliliters/liter of ELPELYT MR
3 milliliters/liter of 62A
27 ℃ of temperature
PH value 3.9
2 minutes time
Current density 6A/dm 2
Carry out electrolytic method plates netted shape on product nickel dam by direct current, thickness is at 2 microns, its density be 300 tiny cracks/centimetre, the tiny crack number that produces under this operational condition is for best, the CASS test-results is also best.Can observe at 100 times of focal length microscopicallies of amplification, the surface of common electrical depositing process product is the point of small pore-like (seeing accompanying drawing 1), and the micro-crack nickel handicraft product is the striped (seeing accompanying drawing 2) of netted shape.
Operating procedure 2, electroplate liquid form and technological specification is:
Nickelous chloride 180 grams per liters
20 milliliters/liter of acetic acid
80 milliliters/liter of ELPELYT MR
1 milliliter/liter of 62A
23 ℃ of temperature
PH value 3.6
1 minute time
Current density 3A/dm 2
Carry out electrolytic method plates netted shape on product nickel dam by direct current, thickness has only about 1 micron, its density be 210 tiny cracks/centimetre, the tiny crack number that produces under this operational condition is on the low side, the CASS test-results is poorer slightly than the result that operating procedure 1 obtains.
Operating procedure 3, electroplate liquid form and technological specification is:
Nickelous chloride 260 grams per liters
60 milliliters/liter of acetic acid
120 milliliters/liter of ELPELYT MR
5 milliliters/liter of 62A
31 ℃ of temperature
PH value 4.1
3 minutes time
Current density 10A/dm 2
Carry out electrolytic method plates netted shape on product nickel dam by direct current, about 3 microns of thickness, its density be 550 tiny cracks/centimetre, the tiny crack number that produces under this operational condition is on the high side relatively, the CASS test-results relatively also decreases than the result of operating procedure 1.
The G washing, part is put into three washing baths more one by one, solution major ingredient in the described tank is the RO water that generates through behind the RO membrane reverse osmosis, its specific conductivity is 5 little siemens/square centimeters, operating time is 2 minutes, and mainly the liquid medicine that the micro-crack nickel troughed belt is come out to remain on the product surface thoroughly cleans up.
H light chromium, described plated item is put into bright chromium groove, and electroplate liquid is formed and technological specification is:
Chromic acid 300 grams per liters
Sulfuric acid 1 grams per liter
30 milliliters/liter of 1120F
30 milliliters/liter of 1120G
Trivalent chromium 2 grams per liters
39 ℃ of temperature
12 minutes time
Current density 10A/dm 2
Main effect is to plate the ornamental extraordinary chromium layer of one deck on product, and its thickness is 1 micron.
I washing, described plated item is put into three washing baths more one by one, is the RO water that generates through behind the RO membrane reverse osmosis in the described tank, and its specific conductivity is 5 little siemenss/every square centimeter, and the operating time is 2 minutes;
The J hot water wash, described plated item enters the hot water washing trough, is the RO water that generates through behind the RO membrane reverse osmosis in the described tank, and its specific conductivity is 5 little siemens/square centimeters, and service temperature is at 66 ℃, and the operating time is 3 minutes, the activation tiny crack;
The K drying, last described plated item enters baking oven, and service temperature is 65 ℃, and the operating time is 35 minutes, and plating finishes.
Judge the quality of product erosion resistance, test with CASS and make comparisons.Under the ASTN368 of General Corporation standard test, the galvanized product of common micropore nickel technology that generally adopts (is that the ABS plastic part is a matrix equally at present, coating is provided with same substantially the application, difference is to replace the tiny crack nickel dam with the micropore nickel dam, surface shape is as shown in Figure 1) uniform point-like shape corrosion appearred through 72 hours CASS rear surfaces, corroded area involves whole prod (seeing accompanying drawing 3), and the final product (surface shape as shown in Figure 2) that adopts aforesaid operations technology 1 described micro-crack nickel technology to obtain is uneven strip corrosion through 72 hours CASS rear surfaces, corroded area is partial (seeing accompanying drawing 4), this shows that tiny crack technology compares other electroplating technology and have great advantage.Explanation is under the cold environment in Europe, and the product of other electroplating technology production can be easily fallen by rotten, and the product of micro-crack nickel explained hereafter just is not easy by rotten.

Claims (9)

1. one kind is used for the galvanized electroplate liquid of micro-crack nickel, it is characterized in that the main component of described electroplate liquid and concentration thereof are expressed as follows:
Nickelous chloride 180~260 grams per liters
20~60 milliliters/liter of acetic acid
80~120 milliliters/liter of ELPELYT MR
1~5 milliliter/liter of 62A
2. electroplate liquid as claimed in claim 1 is characterized in that the pH value of described electroplate liquid is controlled at 3.6~4.2.
3. the application of electroplate liquid as claimed in claim 1 in plastic component crizzle nickel is electroplated is characterized in that described electroplating technology is a base material with the plastic component, comprises following 11 steps: A plastic component surface metalation, the B bright copper, C half bright nickel, D bright nickel, E washing, the F micro-crack nickel, the G washing, H light chromium, I washing, the J hot water wash, the K drying; The main component and the concentration thereof of the electroplate liquid of described step F micro-crack nickel are as follows:
Nickelous chloride 180~260 grams per liters
20~60 milliliters/liter of acetic acid
80~120 milliliters/liter of ELPELYT MR
1~5 milliliter/liter of 62A
The processing parameter of described step F micro-crack nickel is:
23~31 ℃ of temperature
PH value 3.6~4.2
1~3 minute time
Current density 3~10A/dm 2
4. application as claimed in claim 3, it is characterized in that described step J hot water wash specifically carries out according to following: the RO water that adopts specific conductivity to be controlled at below 10 little siemens/square centimeters washs, controlled temperature is 60~70 ℃, and the washing time is 2~5 minutes.
5. as claim 3 or 4 described application, it is characterized in that described step B bright copper is specifically according to following operation: will enter the bright copper groove through the plating piece of processing of step A, the main component of the electroplate liquid in the bright copper groove and concentration thereof are:
Copper sulfate 150~250 grams per liters
Sulfuric acid 40~80 grams per liters
Chlorion 20~100 mg/litre
5~15 milliliters/liter of 1541 make up
0.1~0.5 milliliter/liter of 1541 leveter
0.1~0.5 milliliter/liter of 1541 maintenance
With the phosphorous copper balls is anode, and service temperature is between 22~33 ℃, and current density is 2~4A/dm 2, the operating time was deposited on the plating piece surface copper by the electrolytic mode of direct current between 35~55 minutes, formed the copper layer of the bright look of thickness between 15~35 microns.
6. as claim 3 or 4 described application, it is characterized in that described step C half bright nickel is specifically according to following operation: handle the plated item that obtains through step B and directly enter the semi-bright nickel groove, wherein the main component of electroplate liquid and concentration thereof are:
Single nickel salt 250~350 grams per liters
Nickelous chloride 30~60 grams per liters
Boric acid 30~60 grams per liters
8~12 milliliters/liter of BTL MU
0.2~1 milliliter/liter of TL-2
0.1~0.5 milliliter/liter of BTL-B
1~2 milliliter/liter of 62A
Service temperature is controlled between 50~60 ℃, and the pH value is controlled between 3.6~4.5, and current density is 2~4A/dm 2, the operating time was controlled between 12~24 minutes, made nickel deposition on the plated item surface by the electrolytic mode of direct current, formed the nickel dam of the half bright look of thickness between 10~20 microns.
7. as claim 3 or 4 described application, it is characterized in that the following operation of the concrete employing of described step D: the plated item after step C handles enters the bright nickel groove, and wherein the main component of electroplate liquid and concentration thereof are:
Single nickel salt 250~350 grams per liters
Nickelous chloride 40~70 grams per liters
Boric acid 30~60 grams per liters
5~10 milliliters/liter of 610CFC
63 10~20 milliliters/liter
1~2 milliliter/liter of 66E
1~2 milliliter/liter of 62A
Service temperature is controlled between 52~62 ℃, and the pH value is controlled between 3.6~4.5, and current density is 2~4A/dm 2, the operating time was controlled between 12~24 minutes, made nickel deposition on the plated item surface by the electrolytic mode of direct current, formed the nickel dam of the bright look of thickness between 10~20 microns.
8. as claim 3 or 4 described application, it is characterized in that described step H is specifically according to following operation: the plated item after step G handles enters bright chromium groove, and wherein the main component of electroplate liquid and concentration thereof are:
Chromic acid 250~320 grams per liters
Sulfuric acid 0.8~1.4 grams per liter
25~35 milliliters/liter of 1120F
25~35 milliliters/liter of 1120G
Trivalent chromium 1~3 grams per liter
Service temperature is controlled between 33~43 ℃, and current density is 5~12A/dm 2, the operating time was controlled between 10~15 minutes, plated the chromium layer of one deck light look on the plated item surface, and its thickness is between 0.8~1.5 micron.
9. as claim 3 or 4 described application, it is characterized in that described step e, step G, step I carry out according to following respectively: adopt specific conductivity to be controlled at the following RO water of 10 little siemens/square centimeters and carry out thorough washing, the washing time is 1~~3 minute.
CN200910154747A 2009-12-03 2009-12-03 Plating liquid for plating micro-crack nickel and use thereof Pending CN101705508A (en)

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Cited By (10)

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CN102703935A (en) * 2012-06-12 2012-10-03 宁波华楷汽车零部件有限公司 Novel electroplating solution for microcrack nickel electroplating and plastic part electroplating technology adopting electroplating solution
CN102943292A (en) * 2012-11-07 2013-02-27 嘉兴敏惠汽车零部件有限公司 Method for electroplating micro-crack nickel on plastic surface
CN104746116A (en) * 2015-03-11 2015-07-01 嘉兴敏惠汽车零部件有限公司 Nickel-plated component and manufacturing method thereof
CN104775142A (en) * 2015-03-11 2015-07-15 嘉兴敏惠汽车零部件有限公司 Ultra-corrosion-resistant nickel-chromium plating component and manufacturing method thereof
EP3067443A1 (en) 2015-03-11 2016-09-14 Jiaxing Minhui Automotive Parts Co.,Ltd Nickel and/or chromium plated member and method for manufacturing the same
CN106283129A (en) * 2016-10-08 2017-01-04 贵州大学 For fracture or the electroplate liquid of crackle quick electronickelling and technique and device
CN106903832A (en) * 2016-01-25 2017-06-30 宁波长阳科技股份有限公司 A kind of mould roller and its manufacture method for brightness enhancement film shaping
CN107099824A (en) * 2017-06-19 2017-08-29 四维尔丸井(广州)汽车零部件有限公司 A kind of black chromium plating bath, composite deposite and preparation method thereof
CN107488854A (en) * 2017-08-25 2017-12-19 长春长光宇航复合材料有限公司 A kind of cyanate resin base composite material optical mirror plane and preparation method thereof
CN108374186A (en) * 2018-03-30 2018-08-07 芜湖强振汽车紧固件有限公司 A kind of automobile-used fastener electro-plating method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102703935A (en) * 2012-06-12 2012-10-03 宁波华楷汽车零部件有限公司 Novel electroplating solution for microcrack nickel electroplating and plastic part electroplating technology adopting electroplating solution
CN102703935B (en) * 2012-06-12 2014-08-13 宁波华楷汽车零部件有限公司 Novel electroplating solution for microcrack nickel electroplating and plastic part electroplating technology adopting electroplating solution
CN102943292A (en) * 2012-11-07 2013-02-27 嘉兴敏惠汽车零部件有限公司 Method for electroplating micro-crack nickel on plastic surface
CN102943292B (en) * 2012-11-07 2016-06-08 嘉兴敏惠汽车零部件有限公司 A kind of method of plastic surface plating micro-crack nickel
CN104746116A (en) * 2015-03-11 2015-07-01 嘉兴敏惠汽车零部件有限公司 Nickel-plated component and manufacturing method thereof
CN104775142A (en) * 2015-03-11 2015-07-15 嘉兴敏惠汽车零部件有限公司 Ultra-corrosion-resistant nickel-chromium plating component and manufacturing method thereof
EP3067443A1 (en) 2015-03-11 2016-09-14 Jiaxing Minhui Automotive Parts Co.,Ltd Nickel and/or chromium plated member and method for manufacturing the same
US9976223B2 (en) 2015-03-11 2018-05-22 Jiaxing Minhui Automotive Parts Co., Ltd. Nickel and/or chromium plated member and method for manufacturing the same
RU2618017C2 (en) * 2015-03-11 2017-05-02 Цзясин Миньхой Аутомотив Партс Ко., Лтд Nickel and/or chromium-plated element and method for its production
CN104775142B (en) * 2015-03-11 2020-08-18 嘉兴敏惠汽车零部件有限公司 Super-corrosion-resistant nickel-chromium plated part and manufacturing method thereof
CN106903832A (en) * 2016-01-25 2017-06-30 宁波长阳科技股份有限公司 A kind of mould roller and its manufacture method for brightness enhancement film shaping
CN106283129A (en) * 2016-10-08 2017-01-04 贵州大学 For fracture or the electroplate liquid of crackle quick electronickelling and technique and device
CN107099824A (en) * 2017-06-19 2017-08-29 四维尔丸井(广州)汽车零部件有限公司 A kind of black chromium plating bath, composite deposite and preparation method thereof
CN107099824B (en) * 2017-06-19 2019-05-17 四维尔丸井(广州)汽车零部件有限公司 A kind of black chromium plating bath, composite deposite and preparation method thereof
CN107488854A (en) * 2017-08-25 2017-12-19 长春长光宇航复合材料有限公司 A kind of cyanate resin base composite material optical mirror plane and preparation method thereof
CN108374186A (en) * 2018-03-30 2018-08-07 芜湖强振汽车紧固件有限公司 A kind of automobile-used fastener electro-plating method

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