CN102242382A - Production method of silver-plated conductor for producing highly sophisticated products for aviation and aerospace - Google Patents
Production method of silver-plated conductor for producing highly sophisticated products for aviation and aerospace Download PDFInfo
- Publication number
- CN102242382A CN102242382A CN2010101721165A CN201010172116A CN102242382A CN 102242382 A CN102242382 A CN 102242382A CN 2010101721165 A CN2010101721165 A CN 2010101721165A CN 201010172116 A CN201010172116 A CN 201010172116A CN 102242382 A CN102242382 A CN 102242382A
- Authority
- CN
- China
- Prior art keywords
- silver
- washing
- solution
- plated
- conductor
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 28
- 150000002815 nickel Chemical class 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 229910052709 silver Inorganic materials 0.000 claims abstract description 9
- 239000004332 silver Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 238000005530 etching Methods 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 15
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- RNGFNLJMTFPHBS-UHFFFAOYSA-L dipotassium;selenite Chemical compound [K+].[K+].[O-][Se]([O-])=O RNGFNLJMTFPHBS-UHFFFAOYSA-L 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 3
- 229910001626 barium chloride Inorganic materials 0.000 claims description 3
- QCUOBSQYDGUHHT-UHFFFAOYSA-L cadmium sulfate Chemical compound [Cd+2].[O-]S([O-])(=O)=O QCUOBSQYDGUHHT-UHFFFAOYSA-L 0.000 claims description 3
- 229910000369 cadmium(II) sulfate Inorganic materials 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000002161 passivation Methods 0.000 claims description 3
- 239000012047 saturated solution Substances 0.000 claims description 3
- 238000003828 vacuum filtration Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000007747 plating Methods 0.000 abstract description 10
- 239000002932 luster Substances 0.000 abstract description 2
- 240000004859 Gamochaeta purpurea Species 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005238 degreasing Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- LFAGQMCIGQNPJG-UHFFFAOYSA-N silver cyanide Chemical compound [Ag+].N#[C-] LFAGQMCIGQNPJG-UHFFFAOYSA-N 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/46—Electroplating: Baths therefor from solutions of silver
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/64—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of silver
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention discloses a production method of a silver-plated conductor for producing highly sophisticated products for aviation and aerospace. The production method is characterized by comprising the following production steps: firstly preparing a nickel salt, then preparing a plating solution, insulating a copper or copper alloy conductor, chemically degreasing, washing with water, chemically derusting and polishing, washing with water, carrying out weak etching, washing with water twice, placing into the plating solution for nickel pre-plating, recovering, washing with water, removing the film, washing with water twice, carrying out silver pre-plating and silver plating, recovering, washing with water twice, passivating, washing with water, and drying to obtain the silver-plated conductor. The coating of the silver-plated conductor has the advantages of uniform thickness, high purity, good density, high corrosion resistance and everlasting luster and whiteness; and the silver-plated conductor can be used for highly sophisticated products in aviation, aerospace and other fields.
Description
Technical field
The present invention relates to a kind of production method of silver-plated conductor.
Background technology
Present the most widely used silver plating process remains the prussiate silver plating process.Because this technology has extensive applicability, silver-platedly can adopt from common, and coating performance is also relatively good to the high speed electroforming is silver-plated.In recent years also have some non-cyanide silver coating technologies to be used for industrial production, the non-cyanide silver coating technology in the research and development is just more, but also there is certain gap in the performance of the stability of these yuan cyanogen plating bath and coating and prussiate is silver-plated compares.Develop and to replace the important topic that the silver plated novel process of prussiate remains the electroplating technology field.
Summary of the invention
It is low that purpose of the present invention just provides a kind of cost, and performance is good, is suitable for the production method of the used silver-plated conductor of the high highly sophisticated products of Aeronautics and Astronautics.
The technical solution used in the present invention is: a kind of production method of producing the used silver-plated conductor of the high highly sophisticated products of Aeronautics and Astronautics is characterized in that it comprises following production stage:
(1) preparation nickel salt, the NiSO47H2O of SILVER REAGENT is made into the solution of 250～300g/L and is heated to 50～60 ℃, under condition of stirring, slowly add then and calculate good A liquid, just become clearly until solution, continue to stir 0.5h subsequently, leave standstill 24h again, adopt the mode Ex-all sulfate radical (with the check of BaCl2 solution) of vacuum filtration at last, do not contained SO
4 2-Active nickel salt;
(2) the pre-silver-plated solution of preparation, KCN70-80g/L, KAg (CN)
2, 5-7g/L, mixed pre-silver-plated solution; Prepare silver-plated nickelalloy solution, press solution quality than KAg (CN)
230-80g/L, KCN10-30g/L, K
2CO
310-20g/L, CdSO
40.2-0.3g/L, asccharin 0.1-0.2g/L; Coordination agent 100-150g/L; Nickel salt 5-10g/L; Potassium selenite 1-2g/L prepares above-mentioned substance, at PH13-14; Temperature 20-40 degree centigrade is advanced to be prepared as follows solution, and at first the long-pending deionized water of splendid attire 1/2 cell body in coating bath adds desired other auxiliary material in the prescription, solution is heated to 70 ℃, and constantly stirs; Treat to dissolve fully the back and add the 1-1.5g/L gac, stir the 1h after-filtration; In filtrate, add deionized water, when being close to the regulation liquid level, constantly adding CdSO4, potassium selenite, asccharin and active nickel salt saturated solution under the condition of stirring;
(3) to copper or copper alloy conductor insulate → the silver-plated nickelalloy solution of electrochemical deoiling → washing → chemical rust removing bright dipping → washing → mild acid etching → washing 2 times → put into carries out nickel preplating → recovery → washing → membrane removal → washing 2 times → pre-silver-plated solution silver-plated in advance → put into silver-plated nickelalloy solution silver-plated → 2 times → passivation → washing → oven dry of recovery → washing, promptly make silver-plated conductor.
The invention has the beneficial effects as follows:
1. silver-coated copper wire all is to adopt low resistance high-quality copper cash, guarantees that product has excellent conducting performance.
2. thickness of coating is even, is complete concentric with copper cash.
3. coating purity height (argentiferous is more than 99.99%), compactness is good, and erosion resistance is strong, and the color and luster brilliant white is lasting.
4. coating and copper line surface are complete state, and performance is also very stable under high temperature, and resistance to deterioration is good.
5. weldability is good, can not use soldering flux during welding, can prevent that soldering flux from corroding product, omits anticorrosion formality, enhances productivity.
6. silvered film density is big, is difficult for oxidation desilverization powder, reduces the problem that desilverization powder is caused in the electric wire production process: silver powder stops up pilot hole and causes short-term midway; Silver powder reduces the insulation strength of electric wire.
Embodiment
A kind of production method of producing the used silver-plated conductor of the high highly sophisticated products of Aeronautics and Astronautics of the present invention is characterized in that it comprises following production stage:
(1) preparation nickel salt, the NiSO47H2O of SILVER REAGENT is made into the solution of 250～300g/L and is heated to 50～60 ℃, under condition of stirring, slowly add then and calculate good A liquid, just become clearly until solution, continue to stir 0.5h subsequently, leave standstill 24h again, adopt the mode Ex-all sulfate radical (with the check of BaCl2 solution) of vacuum filtration at last, can not contained SO
4 2-Active nickel salt;
(2) the preparation plating bath prepares pre-silver-plated solution, KCN70-80g/L, KAg (CN)
2, 5-7g/L, mixed pre-silver-plated solution; Prepare silver-plated nickelalloy, KAg (CN)
2, 30-80g/L, KCN10-30g/L, K
2CO
310-20g/L, CdSO
40.2-0.3g/L, asccharin 0.1-0.2g/L; Coordination agent 100-150g/L; Nickel salt 5-10g/L; Potassium selenite 1-2g/L, PH13-14; Temperature 20-40 degree centigrade;
(3) the long-pending deionized water of splendid attire 1/2 cell body in coating bath adds desired other auxiliary material in the prescription, solution is heated to 70 ℃, and constantly stirs.Treat to dissolve fully the back and add the 1-1.5g/L gac, stir the 1h after-filtration; In filtrate, add deionized water, when being close to the regulation liquid level, constantly adding CdSO4, potassium selenite, asccharin and active nickel salt saturated solution under the condition of stirring;
(4) to copper or copper alloy conductor insulate → electrochemical deoiling → washing → chemical rust removing bright dipping → washing → weak etch → washing 2 times → putting into plating bath carries out nickel preplating → recovery → washing → membrane removal → 2 times → silver-plated in advance → silver-plated → 2 times → passivation → washing → oven dry of recovery → washing of washing, promptly makes silver-plated conductor.
Claims (1)
1. production method of producing the used silver-plated conductor of the high highly sophisticated products of Aeronautics and Astronautics is characterized in that it comprises following production stage:
(1) preparation nickel salt, the NiSO47H2O of SILVER REAGENT is made into the solution of 250～300g/L and is heated to 50～60 ℃, under condition of stirring, slowly add then and calculate good A liquid, just become clearly until solution, continue to stir 0.5h subsequently, leave standstill 24h again, adopt the mode Ex-all sulfate radical (with the check of BaCl2 solution) of vacuum filtration at last, do not contained SO
4 2-Active nickel salt;
(2) the pre-silver-plated solution of preparation, KCN70-80g/L, KAg (CN)
2, 5-7g/L, mixed pre-silver-plated solution; Prepare silver-plated nickelalloy solution, press solution quality than KAg (CN)
230-80g/L, KCN10-30g/L, K
2CO
310-20g/L, CdSO
40.2-0.3g/L, asccharin 0.1-0.2g/L; Coordination agent 100-150g/L; Nickel salt 5-10g/L; Potassium selenite 1-2g/L prepares above-mentioned substance, at PH13-14; Temperature 20-40 degree centigrade is advanced to be prepared as follows solution, and at first the long-pending deionized water of splendid attire 1/2 cell body in coating bath adds desired other auxiliary material in the prescription, solution is heated to 70 ℃, and constantly stirs; Treat to dissolve fully the back and add the 1-1.5g/L gac, stir the 1h after-filtration; In filtrate, add deionized water, when being close to the regulation liquid level, constantly adding CdSO4, potassium selenite, asccharin and active nickel salt saturated solution under the condition of stirring;
(3) to copper or copper alloy conductor insulate → the silver-plated nickelalloy solution of electrochemical deoiling → washing → chemical rust removing bright dipping → washing → mild acid etching → washing 2 times → put into carries out nickel preplating → recovery → washing → membrane removal → washing 2 times → pre-silver-plated solution silver-plated in advance → put into silver-plated nickelalloy solution silver-plated → 2 times → passivation → washing → oven dry of recovery → washing, promptly make silver-plated conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101721165A CN102242382A (en) | 2010-05-11 | 2010-05-11 | Production method of silver-plated conductor for producing highly sophisticated products for aviation and aerospace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101721165A CN102242382A (en) | 2010-05-11 | 2010-05-11 | Production method of silver-plated conductor for producing highly sophisticated products for aviation and aerospace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102242382A true CN102242382A (en) | 2011-11-16 |
Family
ID=44960616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101721165A Pending CN102242382A (en) | 2010-05-11 | 2010-05-11 | Production method of silver-plated conductor for producing highly sophisticated products for aviation and aerospace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102242382A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572337A (en) * | 2012-07-23 | 2014-02-12 | 江门市蓬江区亿晶五金电子有限公司 | Nickel silvering process in process of electroplating LED (Light Emitting Diode) bracket |
| WO2014179506A1 (en) * | 2013-05-03 | 2014-11-06 | Tyco Electronics Corporation | Electroplating contacts with silver-alloys in a basic bath |
| CN104299719A (en) * | 2013-07-17 | 2015-01-21 | 河南九发高导铜材股份有限公司 | Single crystal copper-silver composite conductor and preparation method thereof |
| WO2015110099A1 (en) * | 2014-01-27 | 2015-07-30 | Harting Kgaa | Electrolytic bath |
| CN105154933A (en) * | 2015-08-21 | 2015-12-16 | 无锡桥阳机械制造有限公司 | Nickel silver alloy electroplate liquid and electroplating method thereof |
| CN109295445A (en) * | 2018-08-31 | 2019-02-01 | 扬州虹扬科技发展有限公司 | A kind of plating aftertreatment technology of silver-coated copper wire |
| CN109554733A (en) * | 2018-12-13 | 2019-04-02 | 上海万生合金材料有限公司 | A kind of copper line surface processing method |
-
2010
- 2010-05-11 CN CN2010101721165A patent/CN102242382A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572337A (en) * | 2012-07-23 | 2014-02-12 | 江门市蓬江区亿晶五金电子有限公司 | Nickel silvering process in process of electroplating LED (Light Emitting Diode) bracket |
| WO2014179506A1 (en) * | 2013-05-03 | 2014-11-06 | Tyco Electronics Corporation | Electroplating contacts with silver-alloys in a basic bath |
| CN104299719A (en) * | 2013-07-17 | 2015-01-21 | 河南九发高导铜材股份有限公司 | Single crystal copper-silver composite conductor and preparation method thereof |
| WO2015110099A1 (en) * | 2014-01-27 | 2015-07-30 | Harting Kgaa | Electrolytic bath |
| CN105154933A (en) * | 2015-08-21 | 2015-12-16 | 无锡桥阳机械制造有限公司 | Nickel silver alloy electroplate liquid and electroplating method thereof |
| CN109295445A (en) * | 2018-08-31 | 2019-02-01 | 扬州虹扬科技发展有限公司 | A kind of plating aftertreatment technology of silver-coated copper wire |
| CN109554733A (en) * | 2018-12-13 | 2019-04-02 | 上海万生合金材料有限公司 | A kind of copper line surface processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107313084B (en) | A kind of alkaline non-cyanide plate silver plating solution and silver-coating method | |
| CN102242382A (en) | Production method of silver-plated conductor for producing highly sophisticated products for aviation and aerospace | |
| CN102277601B (en) | Cyanogen-free silver-plating electroplating liquid containing auxiliary complexing agent | |
| CN102691081B (en) | A kind of electroplating silver solution and electroplating method | |
| CN102168290A (en) | Cyanide-free silver plating electroplating solution and preparation method and electroplating method thereof | |
| CN108060442B (en) | Method for preparing zinc-copper composite coating on surface of copper-aluminum composite busbar | |
| CN105274545A (en) | Electroplating or chemical-plating pretreatment method of aluminum alloy and application of electroplating or chemical-plating pretreatment method | |
| CN101709494B (en) | Cu-Zn-Sn ternary alloy cyanide-free imitation gold plating solution and use method thereof | |
| CN101760768A (en) | Electroplating solution for cyanide-free silver plating and cyanide-free silver plating method | |
| CN102363884B (en) | Surface treatment process for zinc alloy die casting | |
| CN105088293A (en) | Novel cyanide-free silver plating electroplating liquid and electroplating technology | |
| CN110923757B (en) | Cyanide-free alkali copper electroplating solution and use method thereof | |
| CN103334147A (en) | Method for preparing nickel-coated aluminum powder composite coating by utilizing pulse plating | |
| CN102181892B (en) | Method for improving bonding force of non-cyanide silver plating layer on nickel layer | |
| CN105671602A (en) | Cyanide-free sulfite Au-Cu alloy electroplating solution and application | |
| CN103757671A (en) | Electroplating solution and electroplating method for electrocoppering surface of low-carbon steel plate in alkaline manner | |
| CN104120462B (en) | Steel cord is without the cuprous brass plating of cyanogen and the passivating method of brass coating | |
| CN106591897B (en) | A kind of cyanide-free ionic liquid copper plating solution and copper plating process | |
| CN103789803B (en) | A kind of without cyanogen gunmetal electroplate liquid and preparation method thereof | |
| CN111188070A (en) | Manufacturing method for electroplating nickel, silver and gold on IC packaging board | |
| CN103540970B (en) | A kind of method of non-cyanide silver coating | |
| CN103540978B (en) | A kind of alkaline non-cyanide is electroplated the method for Ag-Ni alloy | |
| CN102383178B (en) | Stripping solution for vehicle connector electroplated terminal plating | |
| CN102002742B (en) | Plating solution formula, preparation method and method for electroplating on aluminum substrate | |
| CN104514019A (en) | Cyanide-free silvering electroplating solution and electroplating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111116 |