CH622032A5 - Cyanide-containing silver electrolyte for the electrodeposition of silver-graphite dispersion-hardened coatings - Google Patents
Cyanide-containing silver electrolyte for the electrodeposition of silver-graphite dispersion-hardened coatings Download PDFInfo
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- CH622032A5 CH622032A5 CH840976A CH840976A CH622032A5 CH 622032 A5 CH622032 A5 CH 622032A5 CH 840976 A CH840976 A CH 840976A CH 840976 A CH840976 A CH 840976A CH 622032 A5 CH622032 A5 CH 622032A5
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- Prior art keywords
- silver
- graphite
- cyanide
- electrolyte
- coatings
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title description 26
- 238000000576 coating method Methods 0.000 title description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title description 14
- 229910052709 silver Inorganic materials 0.000 title description 14
- 239000004332 silver Substances 0.000 title description 14
- 239000003792 electrolyte Substances 0.000 title description 12
- 238000004070 electrodeposition Methods 0.000 title description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title 1
- 229910002804 graphite Inorganic materials 0.000 description 19
- 239000010439 graphite Substances 0.000 description 19
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 14
- 239000006185 dispersion Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 9
- 229910000027 potassium carbonate Inorganic materials 0.000 description 7
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009713 electroplating Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000011181 potassium carbonates Nutrition 0.000 description 4
- 239000000080 wetting agent Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- BVTBRVFYZUCAKH-UHFFFAOYSA-L disodium selenite Chemical compound [Na+].[Na+].[O-][Se]([O-])=O BVTBRVFYZUCAKH-UHFFFAOYSA-L 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- HKSGQTYSSZOJOA-UHFFFAOYSA-N potassium argentocyanide Chemical compound [K+].[Ag+].N#[C-].N#[C-] HKSGQTYSSZOJOA-UHFFFAOYSA-N 0.000 description 3
- 235000015320 potassium carbonate Nutrition 0.000 description 3
- 229960001471 sodium selenite Drugs 0.000 description 3
- 235000015921 sodium selenite Nutrition 0.000 description 3
- 239000011781 sodium selenite Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- RZFBEFUNINJXRQ-UHFFFAOYSA-M sodium ethyl xanthate Chemical compound [Na+].CCOC([S-])=S RZFBEFUNINJXRQ-UHFFFAOYSA-M 0.000 description 2
- BGPJLYIFDLICMR-UHFFFAOYSA-N 1,4,2,3-dioxadithiolan-5-one Chemical compound O=C1OSSO1 BGPJLYIFDLICMR-UHFFFAOYSA-N 0.000 description 1
- BSFODEXXVBBYOC-UHFFFAOYSA-N 8-[4-(dimethylamino)butan-2-ylamino]quinolin-6-ol Chemical compound C1=CN=C2C(NC(CCN(C)C)C)=CC(O)=CC2=C1 BSFODEXXVBBYOC-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 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 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- GWBWGPRZOYDADH-UHFFFAOYSA-N [C].[Na] Chemical compound [C].[Na] GWBWGPRZOYDADH-UHFFFAOYSA-N 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- ISDDBQLTUUCGCZ-UHFFFAOYSA-N dipotassium dicyanide Chemical compound [K+].[K+].N#[C-].N#[C-] ISDDBQLTUUCGCZ-UHFFFAOYSA-N 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- -1 fatty alcohol sulfonates Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- LFAGQMCIGQNPJG-UHFFFAOYSA-N silver cyanide Chemical compound [Ag+].N#[C-] LFAGQMCIGQNPJG-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- HIEHAIZHJZLEPQ-UHFFFAOYSA-M sodium;naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 HIEHAIZHJZLEPQ-UHFFFAOYSA-M 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000012991 xanthate Substances 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
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
- C25D15/02—Combined electrolytic and electrophoretic processes with charged materials
-
- 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
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)
Description
622032 2 622032 2
PATENTANSPRÜCHE 25 bis 30 °C und einer Stromdichte von 1 bis 5 A/dm2 betrieben. PATENT CLAIMS operated at 25 to 30 ° C and a current density of 1 to 5 A / dm2.
1. Cyanidischer Silberelektrolyt zur galvanischen Abschei- 1. Cyanidic silver electrolyte for galvanic deposition
dung von Silber/Graphit-Dispersionsüberzügen, dadurch Ein für die vorliegende Erfindung besonders geeigneter Sil- formation of silver / graphite dispersion coatings, thereby a particularly suitable for the present invention
gekennzeichnet, dass er 10-100 g/1 Graphit der Korngrösse berelektrolyt enthält Kaliumsilbercyanid, Kaliumcyanid und characterized in that it contains 10-100 g / 1 graphite of grain size berelectrolyte potassium silver cyanide, potassium cyanide and
1-10 Jim, 0,02-5 g/1 eines für Silberbäder geeigneten Glanzzu- s Kaliumcarbonat. Ferner ist in dem Silberelektrolyten f einkörni- 1-10 Jim, 0.02-5 g / 1 of a gloss additive suitable for silver baths potassium carbonate. Furthermore, f-grain is in the silver electrolyte
satzes und 0,05-2 g/1 eines für alkalische Elektrolyte geeigneten ger Graphit enthalten, der während des Abscheidungsvorgan- set and 0.05-2 g / 1 of a graphite suitable for alkaline electrolytes, which during the deposition process
Netzmittels enthält ges durch Umpumpen des Bades in Schwebe gehalten wird. Wetting agent contains is kept in suspension by pumping around the bath.
2. Cyanidischer Silberelektrolyt nach Anspruch 1, dadurch Geeignete Glanzbildner sind z.B. Türkischrotöl, Schwefelgekennzeichnet, dass er als Glanzbildner Natriumxanthogenat kohlenstoff, Natriumxanthogenat, Dithiocarbonat, Thiothiazo-oderNatriumselenit enthält. io lidin, Natriumthiosulfat, Ammoniumthiosulfat,Natriumselenit. 2. Cyanidic silver electrolyte according to claim 1, thereby suitable brighteners are e.g. Turkish red oil, sulfur characterized in that it contains carbon sodium, xanthate, dithiocarbonate, thiothiazo or sodium selenite as a brightener. io lidin, sodium thiosulfate, ammonium thiosulfate, sodium selenite.
3. Cyanidischer Silberelektrolyt nach Anspruch 1, dadurch Besonders geeignet ist Natriumxanthogenat oder Natriumsele-gekennzeichnet, dass er als Netzmittel Natriumlaurylsulfat ent- Hithält. Geeignete Netzmittel sind Türkischrotöle, sulfonierte 3. Cyanidic silver electrolyte according to claim 1, characterized in that sodium xanthate or sodium sele is particularly suitable in that it contains sodium lauryl sulfate as a wetting agent. Suitable wetting agents are Turkish red oils, sulfonated
4. Verfahren zur galvanischen Abscheidung von Silber/Gra- Oleatester, Fettalkoholsulfonate, z.B. Natriumlaurylsulfat, Alky-phit-Dispersionsüberzügen unter Verwendung eines cyanidi- is larylsulfonate, z.B. Dibutyl-Natriumnaphtalinsulfonat. Als sehen Silberelektrolyt nach Anspruch 1, dadurch gekennzeich- besonders geeignet hat sich Natriumlaurylsulfat erwiesen, net, dass bei einer Temperatur von 25-30 °C und einer Strom- Die aus einem Bad gemäss der Erfindung erhaltenen Silberdichte von 1 -5 A/dm2 abgeschieden wird. Graphit-Dispersionsüberzüge können nach entsprechender 4. Process for the electrodeposition of silver / gra-oleate esters, fatty alcohol sulfonates, e.g. Sodium lauryl sulfate, alkylphite dispersion coatings using a cyanidis isaryl sulfonate, e.g. Dibutyl sodium naphthalene sulfonate. Silver electrolyte as claimed in claim 1, characterized in that sodium lauryl sulfate has been found to be particularly suitable for the fact that at a temperature of 25-30 ° C. and a current, the silver density of 1 -5 A / dm2 obtained from a bath according to the invention is deposited becomes. Graphite dispersion coatings can according to the corresponding
5. Verfahren nach Anspruch 4 zum galvanischen Beschich- Vorbehandlung - evtl. unter Verwendung von Zwischenschichten von Relaiskontakten. 20 ten - auf Stahl, Kupfer- oder Kupferlegierungen, Aluminium, 5. The method according to claim 4 for galvanic coating pretreatment - possibly using intermediate layers of relay contacts. 20 th - on steel, copper or copper alloys, aluminum,
Nickel, Molybdän oder Wolfram niederschlagen werden. Graphithaltige Oberflächenschichten finden vielfach als Kontaktschichten Verwendung. Sie können z.B. für Relaiskontakte oder auch für andere Zwecke, etwa zur Auskleidung von 25 Lagern, eingesetzt werden. Nickel, molybdenum or tungsten. Surface layers containing graphite are often used as contact layers. You can e.g. for relay contacts or for other purposes, such as lining 25 bearings.
Kontaktschichten aus Silber oder einer Silber-Kupferlegie- Die Erfindung wird durch die folgenden Beispiele näher rung z.B. AgCu3, beispielsweise für Relais können auf pulverme- erläutert tallurgischem oder auf galvanischem Wege hergestellt werden. Contact layers made of silver or a silver-copper alloy. The invention is illustrated by the following examples, e.g. AgCu3, for example for relays, can be manufactured using powder-explained tallurgical or galvanic methods.
Solche Schichten sind in arbeitenden Relais eines starken Beispiel 1 Such layers are in a strong example 1 working relays
mechanischen Verschleiss unterworfen. Es ist bekannt, dass der 30 Metallgegenstände werden nach einer in der Galvanotech-Verschleiss von mechanisch, z.B. durch Reibung beanspruchten nik üblichen Vorbehandlung in einem Elektrolyten folgender Oberflächenschichten durch Graphit herabgesetzt werden Zusammensetzung mit einem Silber-Graphit-Dispersionsüber- subject to mechanical wear. It is known that the 30 metal objects are after one in the galvanotech wear of mechanically, e.g. The usual pretreatment in an electrolyte, which is subject to friction, is reduced by graphite in the following surface layers. Composition with a silver-graphite dispersion coating.
kann. Aus einem von Löffler, D, in Galvanotechnik (65)1974, züg beschichtet. can. From one of Löffler, D, in electroplating (65) 1974, quickly coated.
Nr. 5, S. 360, veröffentlichten Aufsatz sind graphithaltige Nik- Kaliumsilbercyanid K[Ag(CN>2] 46 g/1 No. 5, page 360, published article are graphite-containing Nik potassium silver cyanide K [Ag (CN> 2] 46 g / 1
kel- und Eisenüberzüge bekannt Diese Nickel- bzw. Eisendi- 35 Kaliumcyanid KCN 75 g/1 kel and iron coatings known This nickel or iron di 35 potassium cyanide KCN 75 g / 1
spersionsüberzüge sind galvanisch erzeugte Metallüberzüge, Kaliumcarbonat K2CO3 20 g/1 water-based coatings are electroplated metal coatings, potassium carbonate K2CO3 20 g / 1
die eine nichtmetallische Phase in feiner, möglichst gleichmäs- Graphit, Korngrösse 1-5 um 20 g/1 which is a non-metallic phase in fine, as uniform as possible graphite, grain size 1-5 around 20 g / 1
siger Verteilung, hier Graphit, enthalten und aus sauren Bädern Natriumxanthogenat 0,075 g/1 distribution, here graphite, and from acid baths sodium xanthate 0.075 g / 1
zur Abscheidung gebracht werden. Türkischrotöl 4 g/1 to be brought to deposition. Turkish red oil 4 g / 1
Da es schwierig ist, dünne, graphithaltige Oberflächen- 40 Natriumlaurylsulfat 0,17 g/1 Since it is difficult to thin, graphite-containing surface 40 sodium lauryl sulfate 0.17 g / 1
schichten (Dicke < 20 um), z.B. für Relaiskontakte auf pulver- Temperatur 30 °C metallurgischem Wege herzustellen, war es Aufgabe der Erfin- Stromdichte 2 A/dm2 dung, Silberbäder zu entwicklen, die die Herstellung ver- Schichtdicke 15 [im schleissfester Silber-Graphit-Dispersionsüberzüge auf galvani- Graphitgehalt des Überzuges 0,4 Gew.-% layers (thickness <20 µm), e.g. For relay contacts at a powder temperature of 30 ° C metallurgical way, it was the task of the inventions current density 2 A / dm2 development to develop silver baths, the production of layer thickness 15 [in wear-resistant silver-graphite-dispersion coatings on galvanic-graphite content of Coating 0.4% by weight
schem Wege gestatten. 45 allow pathways. 45
Diese Aufgabe findet ihre Lösung gemäss der Erfindung in Beispiel 2 einem cyanidischen Silberelektrolyten, der 10 bis 100 g/1 Gra- Metallgegenstände werden nach einer in der Galvanotech- This object is achieved according to the invention in Example 2, a cyanide silver electrolyte, which is 10 to 100 g / 1 Gra- metal objects according to one in the electroplating
phit der Korngrösse 1 bis 10 jxm, 0,02 bis 5 g/1 eines für Silberbä- nik üblichen Vorbehandlung in einem Elektrolyten folgender der geeigneten Glanzzusatzes und 0,05 bis 2 g/1 eines für alkali- Zusammensetzung mit einem Silber-Graphit-Dispersionsüber-sche Elektrolyte geeigneten Netzmittels enthält. Die aus dem 50 zug beschichtet: phit with a grain size of 1 to 10 μm, 0.02 to 5 g / 1 of a pretreatment customary for silver banks in an electrolyte following the suitable addition of gloss and 0.05 to 2 g / 1 one for an alkali composition with a silver graphite Contains dispersion-specific electrolytes suitable wetting agents. The coated from the 50 train:
erfindungsgemässen Bad auf galvanischem Wege hergestellten graphithaltigen Oberflächenschichten sind glatt und gleichmäs- Kaliumsilbercyanid K[Ag(CN)î] 46 g/1 Graphite-containing surface layers produced according to the invention by electroplating are smooth and uniformly potassium potassium cyanide K [Ag (CN) î] 46 g / 1
sig. Der Graphit liegt in dem Silber-Graphit-Dispersionsüber- Kaliumcyanid KCN 75 g/1 sig. The graphite is in the silver-graphite dispersion over potassium cyanide KCN 75 g / 1
zug in ausserordentlich feiner und gleichmässiger Verteilung Kaliumcarbonat K2CO3 20 g/1 draw in extraordinarily fine and even distribution of potassium carbonate K2CO3 20 g / 1
vor. Der Graphitgehalt der Überzüge kann entsprechend dem 55 Graphit, Korngrösse 1 -5 jj,m 50 g/1 in front. The graphite content of the coatings can correspond to the 55 graphite, grain size 1 -5 jj, m 50 g / 1
jeweiligen Verwendungszweck 0,1 bis 3 Gew.-% betragen. Die Dithiocarbamat 0,1 g/1 each intended use 0.1 to 3 wt .-%. The dithiocarbamate 0.1 g / 1
Härte der Silber-Graphit-Überzüge (HV 0,05) liegt in einem Natriumlaurylsulfat 0,45 g/1 The hardness of the silver-graphite coatings (HV 0.05) is 0.45 g / 1 in sodium lauryl sulfate
Bereich von 700 bis 1000 N/mm2. Temperatur 30 °C Range from 700 to 1000 N / mm2. Temperature 30 ° C
Silber-Graphit-Dispersionsüberzüge gemäss der Erfindung Stromdichte 2 A/dm2 weisen eine hervorragende Abriebbeständigkeit auf. Abrieb- 60 Schichtdicke 15 [im versuche mit Ag/Graphitüberzüge, die ca. 1,0-1,5 Gew.-% Gra- Graphitgehalt des Überzuges 1,0 Gew.-% Silver-graphite dispersion coatings according to the invention current density 2 A / dm2 have excellent abrasion resistance. Abrasion 60 layer thickness 15 [in experiments with Ag / graphite coatings, the approx. 1.0-1.5% by weight Gra graphite content of the coating 1.0% by weight
phit enthalten, haben beispielsweise gezeigt, dass der Verschleiss derartiger Dispersionsschichten Vio oder sogar weniger Beispiel 3 phit have shown, for example, that the wear of such dispersion layers Vio or even less Example 3
des Verschleisses von reinen Silber- oder Silber-Kupfer-Schich- Metallgegenstände werden nach einer in der Galvanotech-ten unter denselben Bedingungen beträgt. 65 nik üblichen Vorbehandlung in einem Elektrolyten folgender The wear of pure silver or silver-copper-layered metal objects will be one in the electroplating process under the same conditions. 65 nik usual pretreatment in an electrolyte following
Zur Herstellung der Silber-Graphit-Dispersionsüberzüge Zusammensetzung mit einem Silber-Graphit-Dispersionsüber-wird ein Bad gemäss der Erfindung bei einer Temperatur von zug beschichtet: To produce the silver-graphite dispersion coatings composition with a silver-graphite dispersion coating, a bath according to the invention is coated at a temperature of tensile:
622032 622032
Kaliumsilbercyanid K[Ag(CN>2] 46 g/1 Potassium silver cyanide K [Ag (CN> 2] 46 g / 1
Kaliumcyanid KCN 75 g/1 Potassium cyanide KCN 75 g / 1
Kaliumcarbonat K2CO3 20 g/1 Potassium carbonate K2CO3 20 g / 1
Graphit, Korngrösse 1 -5 Jim 75 g/1 Graphite, grain size 1 -5 Jim 75 g / 1
Natriumselenit 2 g/1 Sodium selenite 2 g / 1
Natriumlaurylsulfat 0,7 g/1 Temperatur 30 °C Stromdichte 1 A/dm2 Schichtdicke 15 Jim Graphitgehalt des Überzuges 2,3 Gew.-% Sodium lauryl sulfate 0.7 g / 1 temperature 30 ° C current density 1 A / dm2 layer thickness 15 Jim graphite content of the coating 2.3% by weight
G G
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2543082A DE2543082C3 (en) | 1975-09-26 | 1975-09-26 | Cyanidic silver electrolyte and process for the electrodeposition of silver-graphite dispersion coatings and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH622032A5 true CH622032A5 (en) | 1981-03-13 |
Family
ID=5957572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH840976A CH622032A5 (en) | 1975-09-26 | 1976-07-01 | Cyanide-containing silver electrolyte for the electrodeposition of silver-graphite dispersion-hardened coatings |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH622032A5 (en) |
| DE (1) | DE2543082C3 (en) |
| FR (1) | FR2325735A1 (en) |
| GB (1) | GB1534429A (en) |
| NL (1) | NL7608919A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210254231A1 (en) * | 2018-07-05 | 2021-08-19 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Silver electrolyte for depositing dispersion silver layers and contact surfaces with dispersion silver layers |
| US11542616B2 (en) | 2018-10-11 | 2023-01-03 | Hitachi Energy Switzerland Ag | Silver-graphene composite coating for sliding contact and electroplating method thereof |
| WO2023001868A1 (en) * | 2021-07-21 | 2023-01-26 | Umicore Galvanotechnik Gmbh | Silver electrolyte for separating silver dispersion layers |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019418A1 (en) * | 1979-05-18 | 1980-11-26 | Bonas Machine Company Limited | Weft guide means |
| JPS5931187B2 (en) * | 1980-01-21 | 1984-07-31 | 株式会社日立製作所 | Manufacturing method of catalyst electrode |
| DE3032469A1 (en) * | 1980-08-28 | 1982-04-01 | Siemens AG, 1000 Berlin und 8000 München | CYANIDIC GOLD BATHS AND GALVANIC DEPOSITION OF SOLID LUBRICANT-CONTAINING GOLD DISPERSION SURFACES AND ITS APPLICATION |
| EP0195995B1 (en) * | 1985-03-29 | 1989-09-27 | Siemens Aktiengesellschaft | Process for the electrodeposition of composite tin-graphite or tin-lead graphite layers, and baths used therefor |
| GB8808323D0 (en) * | 1988-04-08 | 1988-05-11 | T & N Technology Ltd | Improvements in/relating to coating of metal substrates |
| US5199553A (en) * | 1990-10-09 | 1993-04-06 | Fuji Electric Co., Ltd. | Sliding contactor for electric equipment |
| GB2251133B (en) * | 1990-10-09 | 1995-03-15 | Fuji Electric Co Ltd | Sliding contactor for electric equipment |
| DE10346206A1 (en) * | 2003-10-06 | 2005-04-28 | Bosch Gmbh Robert | Contact surface e.g. for motor vehicle electrical contacts in engine bay, has silver layer with finely dispersed graphite particles |
| CN100561620C (en) * | 2004-06-21 | 2009-11-18 | 同和控股（集团）有限公司 | composite plated product and preparation method thereof |
| JP4783954B2 (en) * | 2004-06-21 | 2011-09-28 | Ｄｏｗａメタルテック株式会社 | Composite plating material and method for producing the same |
| JP4806808B2 (en) * | 2005-07-05 | 2011-11-02 | Ｄｏｗａメタルテック株式会社 | Composite plating material and method for producing the same |
| JP4862192B2 (en) * | 2005-09-29 | 2012-01-25 | Ｄｏｗａメタルテック株式会社 | Manufacturing method of composite plating material |
| CN105297095A (en) * | 2015-12-14 | 2016-02-03 | 南昌航空大学 | Functional coating of pure silver layer/pure-graphite composite layer and preparation method of functional coating |
| CN106757199A (en) * | 2016-12-22 | 2017-05-31 | 唐恩(厦门)电气有限公司 | One kind prepares high pressure and separates the silver-colored graphite coating process of switch |
| DE102018005352A1 (en) | 2018-07-05 | 2020-01-09 | Dr.-Ing. Max Schlötter GmbH & Co KG | Silver electrolyte for the deposition of dispersion silver layers and contact surfaces with dispersion silver layers |
| CN110592624B (en) * | 2019-10-29 | 2021-08-24 | 佛山市仁昌科技有限公司 | PCB silver electroplating solution containing compound sulfonate brightener |
| EP4060093A1 (en) | 2021-03-17 | 2022-09-21 | Rosenberger Hochfrequenztechnik GmbH & Co. KG | Tribologically enhanced surfaces for electrical contacts |
| EP4089697B1 (en) * | 2021-05-10 | 2024-03-06 | ABB Schweiz AG | Metal-graphene coated electrical contact |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3687824A (en) * | 1969-06-19 | 1972-08-29 | Udylite Corp | Electrodeposition of films of particles on cathodes |
| GB1362558A (en) * | 1971-12-07 | 1974-08-07 | Uyemura Co Ltd C Monolon Co Lt | Electro-deposited composite coatings of metal and graphite fluoride |
-
1975
- 1975-09-26 DE DE2543082A patent/DE2543082C3/en not_active Expired
-
1976
- 1976-07-01 CH CH840976A patent/CH622032A5/en not_active IP Right Cessation
- 1976-08-11 NL NL7608919A patent/NL7608919A/en not_active Application Discontinuation
- 1976-08-13 GB GB33828/76A patent/GB1534429A/en not_active Expired
- 1976-09-22 FR FR7628496A patent/FR2325735A1/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210254231A1 (en) * | 2018-07-05 | 2021-08-19 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Silver electrolyte for depositing dispersion silver layers and contact surfaces with dispersion silver layers |
| US11542616B2 (en) | 2018-10-11 | 2023-01-03 | Hitachi Energy Switzerland Ag | Silver-graphene composite coating for sliding contact and electroplating method thereof |
| WO2023001868A1 (en) * | 2021-07-21 | 2023-01-26 | Umicore Galvanotechnik Gmbh | Silver electrolyte for separating silver dispersion layers |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2543082C3 (en) | 1979-06-28 |
| FR2325735B1 (en) | 1980-09-12 |
| FR2325735A1 (en) | 1977-04-22 |
| DE2543082A1 (en) | 1977-03-31 |
| NL7608919A (en) | 1977-03-29 |
| GB1534429A (en) | 1978-12-06 |
| DE2543082B2 (en) | 1978-11-02 |
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