CN101392395B - Environmental friendly chemical plating nickel plating brightener and use thereof - Google Patents
Environmental friendly chemical plating nickel plating brightener and use thereof Download PDFInfo
- Publication number
- CN101392395B CN101392395B CN2007100771930A CN200710077193A CN101392395B CN 101392395 B CN101392395 B CN 101392395B CN 2007100771930 A CN2007100771930 A CN 2007100771930A CN 200710077193 A CN200710077193 A CN 200710077193A CN 101392395 B CN101392395 B CN 101392395B
- Authority
- CN
- China
- Prior art keywords
- plating
- liquid
- nickel
- brightener
- chemical
- 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.)
- Active
Links
- 238000007747 plating Methods 0.000 title claims abstract description 95
- 239000000126 substance Substances 0.000 title claims abstract description 57
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 24
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- IMBKASBLAKCLEM-UHFFFAOYSA-L Ammonium iron(II) sulfate Chemical compound [NH4+].[NH4+].[Fe+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O IMBKASBLAKCLEM-UHFFFAOYSA-L 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 53
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 26
- 239000002253 acid Substances 0.000 claims description 13
- KQJQICVXLJTWQD-UHFFFAOYSA-N N-methylthiourea Chemical compound CNC(N)=S KQJQICVXLJTWQD-UHFFFAOYSA-N 0.000 claims description 12
- ARUVKPQLZAKDPS-UHFFFAOYSA-L Copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 11
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 239000003381 stabilizer Substances 0.000 abstract description 5
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract description 2
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 abstract description 2
- XTEGVFVZDVNBPF-UHFFFAOYSA-N Armstrong's acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1S(O)(=O)=O XTEGVFVZDVNBPF-UHFFFAOYSA-N 0.000 abstract 1
- QCUOBSQYDGUHHT-UHFFFAOYSA-L Cadmium sulfate Chemical compound [Cd+2].[O-]S([O-])(=O)=O QCUOBSQYDGUHHT-UHFFFAOYSA-L 0.000 abstract 1
- UMGDCJDMYOKAJW-UHFFFAOYSA-N Thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 abstract 1
- 229910000369 cadmium(II) sulfate Inorganic materials 0.000 abstract 1
- 229910001430 chromium ion Inorganic materials 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 35
- 238000005282 brightening Methods 0.000 description 34
- 239000011248 coating agent Substances 0.000 description 25
- 238000000576 coating method Methods 0.000 description 25
- 239000008367 deionised water Substances 0.000 description 6
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 4
- 229910052793 cadmium Inorganic materials 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910018104 Ni-P Inorganic materials 0.000 description 2
- 229910018536 Ni—P Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003000 nontoxic Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 210000002381 Plasma Anatomy 0.000 description 1
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- MIMJFNVDBPUTPB-UHFFFAOYSA-N potassium hexacyanoferrate(3-) Chemical compound [K+].[K+].[K+].N#C[Fe-3](C#N)(C#N)(C#N)(C#N)C#N MIMJFNVDBPUTPB-UHFFFAOYSA-N 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical class [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to an environment-friendly chemically nickel plating brightener. The brightener consists of 0.5 to 1.0 g/l of 1, 5-naphthalenedisulfonic acid, 0.1 to 0.15 g/l thiourea, 0.8 to 1.5g/l ferrous ammonium sulphate, 1.0 to 1.5g/l of coper sulfate, 30 to 45g/l citric acid, and the residual quantity of water. The ingredient of the brightener is free from heavy metal ions such as lead ion and chromium ion, which is harmless and environment friendly. When the brightener is applied to the chemical nickel plating solution and the to-be-plated work pieces are plated, the brightness of the plating layer can reach or be superior to the brightness effect of a brightener containing CdSO4, and the plating layer is compact, nonporous and hard. Furthermore, the brightener can function as a stabilizer, therefore, when the brightener can be applied to the chemical nickel plating solution without adding a stabilizer.
Description
[technical field]
The present invention relates to the process for treating surface of metallic substance, more specifically, relate to a kind of environmental friendly chemical plating nickel plating brightener and application thereof.
[background technology]
Chemical nickel plating is a kind of emerging process for treating surface, it be utilize oxidation-reduction reaction metal material surface deposition one deck evenly, fine and close, bright and clean smooth alloy layer, and coating has superior corrosion resistance and wear resistance, thereby in the industrial purposes widely that obtains.
In the nickel chemical plating technology, be the stability of guaranteeing plating bath and the light that improves coating, can in plating bath, add stablizer and brightening agent usually.Contain lead ion etc. in traditional stablizer, the sulphur compounds that then contains cadmium in the brightening agent, because these two kinds of materials all have very big harm to environment and health of human body, the application that contains the chemical nickel-plating liquid of these objectionable impuritiess also is subjected to strict restriction day by day, therefore, environmental friendly chemical plating nickel plating liquid is just obtaining research more and more widely, and beginning is applied aborning.More in the current environmental friendly chemical plating nickel plating liquid, but the research of brightening agent is less to Study of Stabilizers, and existing environment protection brilliant agent can't reach ideal light level, had a strong impact on the appearance effect of coating.
The adding of brightening agent can not only obtain coating attractive in appearance in the chemical nickel-plating liquid, can also improve the physicals (hardness, stress, magnetic etc.) and the chemical property (solidity to corrosion, porosity, bonding force etc.) of coating, in addition, adds brightening agent and can also improve coating deposition rate.The add-on of brightening agent seldom, itself neglects to influences such as the stability of plating bath are little that it is little, but the chemical property of plating bath is had considerable influence.When brightening agent adds deficiency, quality of coating can be influenced, might coating can't be formed and add at most.But the main difficult point that has a maximum, the i.e. brightness effect of brightening agent and avirulent coordination problem in the research of brightener for chemical nickel plating.Once widely used CdSO
4The brightness effect of brightening agent is very good, but since plating bath in Cd can with Ni-P alloy codeposition, all can cause very big harm to environment and human body, so people wish to develop a kind of new brightening agent, when it was applied in chemical nickel-plating liquid, resulting coating will reach or the approaching CdSO that contains
4The chemical nickel-plating liquid brightness effect of brightening agent, and nontoxic, environmentally friendly.
[summary of the invention]
Technical problem to be solved by this invention is, at above-mentioned defective of the prior art, provides a kind of environmental friendly chemical plating nickel plating brightener, has both had good brightness effect, and is environmentally friendly again.
The present invention solves the problems of the technologies described above the technical scheme that is adopted, a kind of environmental friendly chemical plating nickel plating brightener is provided, the naphthalene 1 that wherein comprises 0.5～1.0g/L, the copper sulfate of the thiocarbamide of 5-disulfonic acid, 0.1～0.15g/L, the ferrous ammonium sulphate of 0.8～1.5g/L, 1.0～1.5g/L, the citric acid of 30～45g/L, and the water of surplus.
Preferably, comprise the naphthalene 1 of 1.0g/L in the above-mentioned brightening agent, the copper sulfate of the thiocarbamide of 5-disulfonic acid, 0.1g/L, the ferrous ammonium sulphate of 1.0g/L, 1.0g/L, the citric acid of 40g/L, and the water of surplus.
Above-mentioned brightening agent is in being applied to chemical nickel-plating liquid the time, and the addition in every liter of chemical nickel-plating liquid is 10～15mL.
Preferably, above-mentioned brightening agent is in being applied to chemical nickel-plating liquid the time, also be included in each plating cycle, add adding liquid A and adding liquid B of 10～15mL in the chemical nickel-plating liquid to every the liter, describedly add the ferrous ammonium sulphate that liquid A comprises 0.1～0.15g/L, the copper sulfate of 4.0～4.5g/L, the citric acid of 30～45g/L, and the water of surplus; The described naphthalene 1 that comprises 0.5～1.0g/L among the liquid B of adding, the thiocarbamide of 5-disulfonic acid, 0.1～0.15g/L, the citric acid of 30～45g/L, and the water of surplus.
Preferably, above-mentioned brightening agent adds the ferrous ammonium sulphate that comprises 0.1g/L among the liquid A, the copper sulfate of 4.0g/L, the citric acid of 40g/L and the water of surplus.
Preferably, above-mentioned brightening agent adds the naphthalene 1 that comprises 1.0g/L among the liquid B, the thiocarbamide of 5-disulfonic acid, 0.1g/L, the citric acid of 40g/L, and the water of surplus.
Preferably, above-mentioned brightening agent is in being applied to chemical nickel-plating liquid the time, and the plating loading capacity of chemical nickel-plating liquid is 0.5dm
2/ L--2dm
2/ L.
Preferably, above-mentioned brightening agent is in being applied to chemical nickel-plating liquid the time, and the plating temperature of chemical nickel-plating liquid is 85～92 ℃.
Implementing the effect of having a mind to that environmental friendly chemical plating nickel plating brightener provided by the present invention has is, heavy metal ion such as not leaded in the prescription, chromium are nontoxic environmentally friendly; Naphthalene 1, the 5-disulfonic acid mainly plays the depolarize inhibitor; Thiocarbamide plays the depolarize inhibitor, function of stabilizer, and under proper concn, can add quicking speed; Ferrous ammonium sulphate and copper sulfate effect are and nickel generation codeposition; Because ferrous ion could be stablized under acidic conditions, citric acid promptly reaches the effect that makes brightening agent more stable as complexing agent.This brightening agent is in being applied to chemical nickel-plating liquid and to after the workpiece plating, and the coating luminance brightness reaches or is higher than and contains CdSO
4The brightness effect of brightening agent, and coating dense non-porous crack, hardness are good; This brightening agent has stabilizer function concurrently simultaneously, need not additionally to add stablizer in the time of in being applied to chemical nickel-plating liquid.
[description of drawings]
Shown in Figure 1 is to adopt to contain traditional C dSO
4After the chemical nickel-plating liquid plating of brightening agent, the Electronic Speculum figure of workpiece coating morphology;
Shown in Figure 2 is after employing contains the chemical nickel-plating liquid plating of brightening agent provided by the invention, the Electronic Speculum figure of workpiece coating morphology.
[embodiment]
1. set of dispense ratio
1.1 brightening agent
1.2 add liquid A
1.3 add liquid B
2. preparation
2.1 the preparation of brightening agent
Take by weighing naphthalene 1 by above-mentioned prescription respectively, 5-disulfonic acid, thiocarbamide, placing volume is the container of 1L, adds deionized water; After treating to dissolve fully,, be dissolved in the above-mentioned solution ferrous ammonium sulphate, copper sulfate; After the dissolving, add citric acid fully, shake up, add deionized water to 1L.
2.2 add the preparation of liquid A
Taking by weighing ferrous ammonium sulphate, copper sulfate by above-mentioned prescription respectively, to place volume be the container of 1L, adds deionized water; After treating to dissolve fully, add citric acid, shake up, add deionized water to 1L.
2.3 add the preparation of liquid B
Take by weighing naphthalene 1 by above-mentioned prescription respectively, it is the container of 1L that 5-disulfonic acid, thiocarbamide place volume, adds deionized water; After treating to dissolve fully, add citric acid, shake up, add deionized water to 1L.
3. the application in chemical nickel-plating liquid
Before carrying out electroless plating, every liter of chemical nickel-plating liquid adds above-mentioned brightening agent 10～15mL, simultaneously in each plating cycle, adds adding liquid A and adding liquid B of 10～15mL in the chemical nickel-plating liquid to every the liter.
The loading capacity of chemical nickel-plating liquid when plating that contains this brightening agent is 0.5dm
2/ L--2dm
2/ L, preferred 1dm
2/ L, plating temperature is 85～92 ℃, need not to add in addition stablizer in the use.
4. coating performance is measured
4.1 content plumbous in the coating, cadmium
Adopt the 5300DV of U.S. PE company to compose the content that direct-reading inductance coupling plasma emission spectrometer (ICP) is accurately tested lead, cadmium in the coating entirely, test result shows that weight concentration plumbous in the coating is 0.121%, the weight concentration of cadmium is 0.00347%, meets the RoHS of European Union standard.
4.2 coating morphology electron microscopic observation
Adopt the S7 type atomic force microscope (AFM) of Russian SLOVER company to observe respectively to adopt the surface topography (Fig. 1) of coating after the chemical nickel-plating liquid plating that contains brightening agent of the present invention, and with contain CdSO
4The surface topography (Fig. 2) of coating is compared after the chemical nickel-plating liquid plating of brightening agent, shows that the coating brightness effect that adopts brightening agent of the present invention is more excellent.
4.3 porosity and hardness
The porosity experiment shows when plating time is 1h the coating imporosity.Test fluid is a potassium ferricyanide solution, and application time is 5min, and sticking area is 25cm
2, corrosion resistance of coating and naphthalene 1, the consumption of 5-disulfonic acid, thiocarbamide all is directly proportional, and is inversely proportional to the consumption of ferrous ammonium sulphate.
The adding of brightening agent of the present invention does not change the good with joint efforts characteristics of Ni-P alloy junction in the chemical nickel plating.Naphthalene 1 in the brightening agent, and the increase of 5-disulfonic acid helps improving coating hardness, and test shows adopts the hardness of coating after the chemical nickel-plating liquid plating contain brightening agent of the present invention more than 570 (Hv).
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. environmental friendly chemical plating nickel plating brightener, it is characterized in that, the naphthalene 1 that wherein comprises 0.5～1.0g/L, the copper sulfate of the thiocarbamide of 5-disulfonic acid, 0.1～0.15g/L, the ferrous ammonium sulphate of 0.8～1.5g/L, 1.0～1.5g/L, the citric acid of 30～45g/L, and the water of surplus.
2. environmental friendly chemical plating nickel plating brightener according to claim 1, it is characterized in that, the naphthalene 1 that wherein comprises 1.0g/L, the copper sulfate of the thiocarbamide of 5-disulfonic acid, 0.1g/L, the ferrous ammonium sulphate of 1.0g/L, 1.0g/L, the citric acid of 40g/L, and the water of surplus.
3. the application of the described environmental friendly chemical plating nickel plating brightener of claim 1 in chemical nickel-plating liquid is characterized in that, the addition in every liter of chemical nickel-plating liquid is 10～15mL.
4. the application of environmental friendly chemical plating nickel plating brightener according to claim 3 in chemical nickel-plating liquid, it is characterized in that, also be included in each plating cycle, add adding liquid A and adding liquid B of 10～15mL in the chemical nickel-plating liquid to every the liter, describedly add the ferrous ammonium sulphate that liquid A comprises 0.1～0.15g/L, the copper sulfate of 4.0～4.5g/L, the citric acid of 30～45g/L, and the water of surplus; The described naphthalene 1 that comprises 0.5～1.0g/L among the liquid B of adding, the thiocarbamide of 5-disulfonic acid, 0.1～0.15g/L, the citric acid of 30～45g/L, and the water of surplus.
5. the application of environmental friendly chemical plating nickel plating brightener according to claim 4 in chemical nickel-plating liquid is characterized in that, describedly adds the ferrous ammonium sulphate that liquid A comprises 0.1g/L, the copper sulfate of 4.0g/L, the citric acid of 40g/L, and the water of surplus.
6. the application of environmental friendly chemical plating nickel plating brightener according to claim 4 in chemical nickel-plating liquid is characterized in that, the described naphthalene 1 that liquid B comprises 1.0g/L, the thiocarbamide of 5-disulfonic acid, 0.1g/L, the citric acid of 40g/L, and the water of surplus added.
7. the application of environmental friendly chemical plating nickel plating brightener according to claim 3 in chemical nickel-plating liquid is characterized in that the plating loading capacity of described chemical nickel-plating liquid is 0.5dm
2/ L--2dm
2/ L.
8. the application of environmental friendly chemical plating nickel plating brightener according to claim 3 in chemical nickel-plating liquid is characterized in that the plating temperature of described chemical nickel-plating liquid is 85～92 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100771930A CN101392395B (en) | 2007-09-18 | 2007-09-18 | Environmental friendly chemical plating nickel plating brightener and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100771930A CN101392395B (en) | 2007-09-18 | 2007-09-18 | Environmental friendly chemical plating nickel plating brightener and use thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101392395A CN101392395A (en) | 2009-03-25 |
| CN101392395B true CN101392395B (en) | 2011-10-26 |
Family
ID=40492900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100771930A Active CN101392395B (en) | 2007-09-18 | 2007-09-18 | Environmental friendly chemical plating nickel plating brightener and use thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101392395B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644066A (en) * | 2011-02-17 | 2012-08-22 | 朱从亚 | Environment-friendly chemical nickel plating brightener and application thereof |
| CN103352213B (en) * | 2013-06-18 | 2016-08-10 | 宝鸡多元合金科技有限公司 | Environment-friendly type height anti-H 2 S and high abrasion Ni-P-W-Mo quaternary alloy plating solution and compound method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024878A (en) * | 2006-12-22 | 2007-08-29 | 陈先义 | Environment-protection brightening type chemical nickel-plating additive |
-
2007
- 2007-09-18 CN CN2007100771930A patent/CN101392395B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024878A (en) * | 2006-12-22 | 2007-08-29 | 陈先义 | Environment-protection brightening type chemical nickel-plating additive |
Non-Patent Citations (1)
| Title |
|---|
| 张天顺等.TL全光亮化学镀镍磷合金工艺研究.《电镀与涂饰》.2003,第22卷(第4期),第23页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101392395A (en) | 2009-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2883815C (en) | Plating solution and plating process for multi-layer cyanide-free plating copper-tin alloy coating, and coins made by the process | |
| CN1922343B (en) | Baths, systems and processes for electroplating zinc-nickel ternary and higher alloys and articles so electroplated | |
| CN101838830B (en) | Electrolyte of electroplating palladium-nickel alloy | |
| CN100500935C (en) | Environment-protection brightening type chemical nickel-plating additive | |
| CN107604393A (en) | One kind is without cyanogen alkali copper electroplating composition and preparation method thereof | |
| CN102691081B (en) | A kind of plating silver solution and electro-plating method | |
| CN104321463A (en) | Plating bath for electroless deposition of nickel layers | |
| CN101498013A (en) | Sulfamic acid nickel plating solution and method | |
| CN102260891A (en) | Method for electrodepositing nanocrystalline nickel-cobalt alloy by double-pulse | |
| AT514818A1 (en) | Deposition of Cu, Sn, Zn coatings on metallic substrates | |
| CN103014792B (en) | A kind of ornamental chromium replacement electroplating liquid of tin-cobalt alloy and electro-plating method thereof | |
| CN105734622A (en) | Cyanide-free copper plating solution and preparation method thereof | |
| Kim et al. | The effects of electroplating parameters on the composition and morphology of Sn-Ag solder | |
| CN102383154A (en) | Cyanide-free gold-plating electroplating solution | |
| KR101270770B1 (en) | Electroplating method for printed circuit board | |
| Karami et al. | Electroplating nanostructured hard gold through the pulse galvanostatic method | |
| JP5452458B2 (en) | Nickel plating solution and nickel plating method | |
| CN101392395B (en) | Environmental friendly chemical plating nickel plating brightener and use thereof | |
| CN103540970A (en) | Method for non-cyanide silver plating | |
| Yan et al. | Electrochemical reduction process of Co (II) in citrate solution | |
| Nineva et al. | Electrodeposition of Silver-Cobalt Coatings. Electrolytes. | |
| JP6498617B2 (en) | Brightening agent for electro nickel plating, electro nickel plating solution, electro plating method, plated product, and nickel elution prevention method | |
| JP2007308801A (en) | Nickel/cobalt/phosphorus electroplating composition and its application | |
| Akben et al. | A comparative study of silver electrodeposition from pyrophosphate-cyanide and high concentration cyanide electrolytes in the presence of brighteners | |
| CN102424994A (en) | Ferronickel alloy electroplating liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160824 Address after: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong Province, No. 6 building 518000 Patentee after: SHENZHEN BAK POWER BATTERY Co.,Ltd. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: SHENZHEN BAK BATTERY Co.,Ltd. |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191022 Granted publication date: 20111026 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221022 Granted publication date: 20111026 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20221022 Granted publication date: 20111026 |