CN101532152B - Cobalt-tungsten-iron-nickel alloy electroplating liquid - Google Patents
Cobalt-tungsten-iron-nickel alloy electroplating liquid Download PDFInfo
- Publication number
- CN101532152B CN101532152B CN2009100146604A CN200910014660A CN101532152B CN 101532152 B CN101532152 B CN 101532152B CN 2009100146604 A CN2009100146604 A CN 2009100146604A CN 200910014660 A CN200910014660 A CN 200910014660A CN 101532152 B CN101532152 B CN 101532152B
- Authority
- CN
- China
- Prior art keywords
- litre
- grams
- grams per
- per liter
- electroplating liquid
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 title claims abstract description 8
- WAWXPJNGLGSTFZ-UHFFFAOYSA-N [Co].[Fe].[Ni].[W] Chemical compound [Co].[Fe].[Ni].[W] WAWXPJNGLGSTFZ-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 238000009713 electroplating Methods 0.000 title abstract 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 8
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 8
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 8
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 8
- 239000008139 complexing agent Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000005303 weighing Methods 0.000 claims description 13
- 241000220317 Rosa Species 0.000 claims description 7
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 7
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 150000002815 nickel Chemical class 0.000 claims description 7
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 5
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 5
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims description 5
- 238000005282 brightening Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- -1 formaldehyde, dimethylated hexynol Chemical class 0.000 claims description 5
- 239000000467 phytic acid Substances 0.000 claims description 5
- 235000002949 phytic acid Nutrition 0.000 claims description 5
- 229940068041 phytic acid Drugs 0.000 claims description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Substances CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 5
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 5
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 5
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 2
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000003595 mist Substances 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000361 cobalt sulfate Inorganic materials 0.000 abstract 1
- 229940044175 cobalt sulfate Drugs 0.000 abstract 1
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 abstract 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 abstract 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 17
- 229910001080 W alloy Inorganic materials 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000001509 sodium citrate Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical class [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 3
- 235000019263 trisodium citrate Nutrition 0.000 description 3
- 229910001145 Ferrotungsten Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910004803 Na2 WO4.2H2 O Inorganic materials 0.000 description 1
- 241000080590 Niso Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention discloses cobalt-tungsten-iron-nickel alloy electroplating liquid and belongs to the field of material surface treatment. A formula of the electroplating liquid comprises: 1 to 5 grams/litre of cobalt sulfate, 20 to 60 grams/litre of sodium tungstate, 10 to 50 grams/litre of ferrous sulfate, 20 to 60 grams/litre of nickel sulfate, 10 milliliters/litre of 28 percent oxalic acid, 5 to 15 grams/litre of ammonia sulfate, 20 to 40 grams/litre of a complexing agent, 1 to 8 grams/litre of a stabilizing agent, 2 to 5 milliliters/litre of a brightness additive and 1,000 milliliters of deionized water. The surface of an electroplating layer obtained by using the cobalt-tungsten-iron-nickel alloy electroplating liquid has no microcrack and has good corrosion and friction resistance; each chemical reagent of the electroplating liquid has small harm to the environment; the process is stable; the electroplating liquid has simple components, is convenient to operate and can be stored for a long time after being prepared; and in addition, the electroplating liquid emits no acid mist in the working process and has high current efficiency.
Description
Technical field
The present invention relates to the alloy plating liquid in a kind of material surface process field, specifically a kind of cobalt-tungsten-iron nickel alloy electroplate liquid.
Background technology
At present, the eccentric wear and the corrosion phenomenon in petroleum machinery field are serious, also there is not a kind of process for treating surface of satisfaction can be used for the surface treatment of petroleum machinery, can possess anticorrosion antiwear and with low cost simultaneously, continuous consumption along with petroleum resources, the environment of recover petroleum is more and more abominable, and is more and more higher to the corrosion-resistant crocking resistance requirement of oil equipment.Therefore, the anticorrosion antiwear technology of research petroleum machinery is the problem that people are absorbed in always.
A kind of scheme that may solve is a tungsten alloy plating, tungsten can not be independent come out from aqueous solution electrodeposition, but can and iron family element ting (iron, nickel, cobalt) together induced codeposition come out, obtain the tungstenalloy of various components, the ferrotungsten of picture known technology, nickel tungsten, ferrum-nickel-tungsten alloy etc. can obtain non-crystaline amorphous metal through control.But above plating exists fragility big (ferrotungsten), electrodeposition rate slow (ferrum-nickel-tungsten alloy), apparent shortcoming such as tiny crack is arranged, and has limited its range of application.
Summary of the invention
Technical assignment of the present invention provides a kind of cobalt-tungsten-iron nickel alloy electroplate liquid.
Technical assignment of the present invention realizes that in the following manner the prescription of this electroplate liquid is as follows:
Rose vitriol (CoSO
4) the 1-5 grams per liter; Sodium wolframate (Na
2WO
4.2H
2O) 20-60 grams per liter;
Ferrous sulfate (FeSO
4.7H
2O) 10-50 grams per liter;
Single nickel salt (NiSO
4.7H
2O) 20-60 grams per liter;
Concentration be 28% oxalic acid 5-15 milliliter/liter;
Ammonium sulfate 5-15 grams per liter; Complexing agent 20-40 grams per liter;
Stablizer 1-8 grams per liter; Brightener 2-5 milliliter/liter;
Add deionized water to 1000 milliliter;
Working method is as follows:
Take by weighing an amount of complexing agent and stablizer respectively, add deionized water, be stirred to dissolving; Add an amount of oxalic acid solution at normal temperatures, and an amount of rose vitriol, ferrous sulfate, single nickel salt, be stirred to dissolving under the normal temperature; Then above-mentioned solution with water bath is heated to 65 ℃, takes by weighing an amount of sodium wolframate again, ammonium sulfate joins in this solution, is stirred to dissolving; Add brightening agent then, regulate the pH value of this solution to 6-8 with sodium hydroxide solution.
Described brightener is 1, the mixture of 2-propylene glycol, formaldehyde, dimethylated hexynol.
Described complexing agent is that citric acid and trisodium phosphate are 2: 1 mixture by weight.
Described stablizer is that phytic acid, xitix are 2: 1 mixture by volume.
Cobalt-tungsten of the present invention-iron nickel alloy electroplate liquid has the following advantages:
1) because this electroplate liquid relates to multiple metal ion (iron, nickel, tungsten, cobalt), the coating that from this electroplate liquid, obtains, the surface is non-microcracked, has good corrosion-resistant rub resistance.
2) the various chemical reagent among the present invention are little to environmental hazard, process stabilizing, and bath composition is simple and be convenient to operation, can long-term storage after the configuration; In addition, this plating bath does not have acid mist in the course of the work emits the current efficiency height.
Embodiment
Embodiment 1:
Dispose complexing-stable liquid earlier: take by weighing 24 gram Trisodium Citrates, 12 gram trisodium phosphates, 10 milliliters of phytic acid, 5 milliliters of xitix respectively, add 500 ml deionized water, be stirred to dissolving; Measure 5 ml concns at normal temperatures and be 28% oxalic acid and add above-mentioned solution, take by weighing rose vitriol 1 gram, ferrous sulfate 20 grams, 20 gram single nickel salts, be stirred to dissolving under the normal temperature; Be heated to 65 ℃ with water-bath again, take by weighing 20 gram sodium wolframates, 5 gram ammonium sulfate and joining in this solution, be stirred to dissolving; Add with 1,2 milliliters of the brightening agents that 2-propylene glycol, formaldehyde, dimethylated hexynol configure add deionized water then and make solution to 1000 milliliter, with sodium hydroxide solution adjusting pH value to 6; Bath temperature is heated to 65 ℃, and stainless steel is done anode, and workpiece is done negative electrode, and current density is 4A/dm
2Under electroplate, can obtain the light tungstenalloy coating.
Embodiment 2:
Dispose complexing-stable liquid earlier: take by weighing 24 gram Trisodium Citrates, 12 gram trisodium phosphates, 10 milliliters of phytic acid, 5 milliliters of xitix respectively, add 500 ml deionized water, be stirred to dissolving; Measure 15 ml concns at normal temperatures and be 28% oxalic acid and add above-mentioned solution, take by weighing rose vitriol 5 grams, ferrous sulfate 50 grams, 60 gram single nickel salts, be stirred to dissolving under the normal temperature; Be heated to 65 ℃ with water-bath again, take by weighing 60 gram sodium wolframates, 15 gram ammonium sulfate and joining in this solution, be stirred to dissolving; Add with 1,5 milliliters of the brightening agents that 2-propylene glycol, formaldehyde, dimethylated hexynol configure add deionized water then and make solution to 1000 milliliter, with sodium hydroxide solution adjusting pH value to 8; Bath temperature is heated to 75 ℃, and stainless steel is done anode, and workpiece is done negative electrode, and current density is 10A/dm
2Under electroplate, can obtain the light tungstenalloy coating.
Embodiment 3:
Dispose complexing-stable liquid earlier: take by weighing 24 gram Trisodium Citrates, 12 gram trisodium phosphates, 10 milliliters of phytic acid, 5 milliliters of xitix respectively, add 500 ml deionized water, be stirred to dissolving; Measure 10 ml concns at normal temperatures and be 28% oxalic acid and add above-mentioned solution, take by weighing rose vitriol 3 grams, ferrous sulfate 30 grams, 40 gram single nickel salts, be stirred to dissolving under the normal temperature; Be heated to 65 ℃ with water-bath again, take by weighing 40 gram sodium wolframates, 10 gram ammonium sulfate and joining in this solution, be stirred to dissolving; Add with 1,3.5 milliliters of the brightening agents that 2-propylene glycol, formaldehyde, dimethylated hexynol configure add deionized water then and make solution to 1000 milliliter, with sodium hydroxide solution adjusting pH value to 7; Bath temperature is heated to 70 ℃, and stainless steel is done anode, and workpiece is done negative electrode, and current density is 8A/dm
2Under electroplate, can obtain the light tungstenalloy coating.
Claims (1)
1. cobalt-tungsten-iron nickel alloy electroplate liquid is characterized in that the prescription of this electroplate liquid is as follows:
Rose vitriol 1-5 grams per liter; Sodium wolframate 20-60 grams per liter;
Ferrous sulfate 10-50 grams per liter; Single nickel salt 20-60 grams per liter;
Concentration be 28% oxalic acid 5-15 milliliter/liter
Ammonium sulfate 5-15 grams per liter; Complexing agent 20-40 grams per liter;
Stablizer 1-8 grams per liter; Brightener 2-5 milliliter/liter;
Add deionized water to 1000 milliliter;
Described brightener is 1, the mixture of 2-propylene glycol, formaldehyde, dimethylated hexynol;
Described complexing agent is that citric acid and trisodium phosphate are 2: 1 mixture by weight;
Described stablizer is that phytic acid, xitix are 2: 1 mixture by volume;
Working method is as follows:
Take by weighing an amount of complexing agent and stablizer respectively, add deionized water, be stirred to dissolving; Add an amount of oxalic acid solution at normal temperatures, and an amount of rose vitriol, ferrous sulfate, single nickel salt, be stirred to dissolving under the normal temperature; Then above-mentioned solution with water bath is heated to 65 ℃, takes by weighing an amount of sodium wolframate again, ammonium sulfate joins in this solution, is stirred to dissolving; Add brightening agent then, regulate the pH value of this solution to 6-8 with sodium hydroxide solution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009100146604A CN101532152B (en) | 2009-03-09 | 2009-03-09 | Cobalt-tungsten-iron-nickel alloy electroplating liquid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009100146604A CN101532152B (en) | 2009-03-09 | 2009-03-09 | Cobalt-tungsten-iron-nickel alloy electroplating liquid |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101532152A CN101532152A (en) | 2009-09-16 |
CN101532152B true CN101532152B (en) | 2010-12-29 |
Family
ID=41103010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009100146604A Expired - Fee Related CN101532152B (en) | 2009-03-09 | 2009-03-09 | Cobalt-tungsten-iron-nickel alloy electroplating liquid |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101532152B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101775629A (en) * | 2010-03-11 | 2010-07-14 | 乔瀚文 | Electroplating solution for producing magnetically soft iron-nickel-molybdenum alloy foils |
CN102605393B (en) * | 2012-03-13 | 2015-06-17 | 广州三孚新材料科技股份有限公司 | Ni-W-Fe-Co alloy electroplating liquid and electroplating process thereof |
CN104195606B (en) * | 2014-08-26 | 2017-02-15 | 燕山大学 | Thick nickel-iron-tungsten ternary alloy plating layer and preparation method thereof |
CN104372389A (en) * | 2014-11-14 | 2015-02-25 | 无锡信大气象传感网科技有限公司 | Cobalt-tungsten-nickel alloy electroplating solution and preparation method thereof |
CN105040052A (en) * | 2015-09-15 | 2015-11-11 | 河海大学常州校区 | Electroplate liquid and technology for preparing nanocrystalline iron-cobalt-nickel-phosphorus quaternary alloy coating using same |
CN105350036B (en) * | 2015-10-31 | 2018-03-13 | 北京工业大学 | A kind of method of tungsten electrodeposition alloy |
CN109292954B (en) * | 2018-11-20 | 2020-07-31 | 湖北省工程咨询股份有限公司 | FeWO4Method for degrading pollutants in water by nanosheet |
CN112111766B (en) * | 2020-09-25 | 2021-07-13 | 南京工程学院 | A method for preparing titanium metal tungsten-containing surface layer based on solid-phase dissolution of nanoparticles |
CN115182009B (en) * | 2022-07-11 | 2023-05-09 | 余姚市爱迪升电镀科技有限公司 | Bright nickel-tungsten alloy plating solution and preparation process of corrosion-resistant multilayer plating layer |
CN115323448B (en) * | 2022-07-21 | 2025-03-04 | 中国人民解放军32178部队科技创新研究中心 | A nickel-tungsten alloy electrodeposition solution and a nickel-tungsten alloy electrodeposition method |
-
2009
- 2009-03-09 CN CN2009100146604A patent/CN101532152B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101532152A (en) | 2009-09-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101532152B (en) | Cobalt-tungsten-iron-nickel alloy electroplating liquid | |
CN101928967B (en) | Cobalt-tungsten-nickel-phosphorus alloy electroplating liquid | |
CN101532153B (en) | Amorphous nano-alloy plating layer of electrodeposition nickel-based series, electroplating liquid and electroplating process | |
US4581110A (en) | Method for electroplating a zinc-iron alloy from an alkaline bath | |
CN105386089A (en) | Trivalent chromium hard chromium electroplating solution and application of trivalent chromium hard chromium electroplating solution in hard chromium electroplating | |
CN101260549B (en) | Non-preplating type non-cyanide silver-plating electroplate liquid | |
CN102037162A (en) | Pd and Pd-Ni electrolyte baths | |
CN101928968B (en) | Boron-tungsten-iron-nickel alloy electroplating liquid | |
CN100487168C (en) | Electrolyte media for the deposition of tin alloys and methods for depositing tin alloys | |
CN102021617B (en) | Cyanide-free electroplating bath for copper plating of iron and steel parts | |
AU2001248465A1 (en) | Electrolytic solution for electrochemical deposit of palladium or its alloys | |
CN104388991A (en) | Copper electroplate liquid and preparation method thereof | |
JP2003530486A5 (en) | ||
CN103911638A (en) | Cobalt nickel phosphorus-silicon carbide electroplating solution and electroplating method | |
CN104388989A (en) | Trivalent chromium electroplating liquid and preparation method thereof | |
CN101781782B (en) | Cyanide-free high-speed silver plating electroplating solution | |
CN101092724A (en) | Non-cyanogen type electroplating solution for plating silver | |
CN105369305A (en) | A copper-nickel alloy electroplating solution and an electroplating method thereof | |
CN105112899B (en) | A kind of alkaline chemical nickel-plating tungsten phosphorus alloy brightener and application have the chemical plating method of the brightener | |
CN103806036A (en) | Wide-current density cyanide-free copper-tin alloy electroplating process | |
CN104372389A (en) | Cobalt-tungsten-nickel alloy electroplating solution and preparation method thereof | |
CN107236977A (en) | A kind of electroplating pretreatment process optimization method | |
CN1056422C (en) | Brightener for chemical nickel plating | |
CN104120466A (en) | Weak acid chloride electroplating solution used for neodymium iron boron electroplating of zinc-iron alloy and preparation method | |
US3186926A (en) | Electroplating solution containing a diester of selenious acid |
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 | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20130309 |