EP2937450B1 - Galvanisches bad oder mischung zur verwendung in einem galvanischen bad zur abscheidung einer glanznickelschicht sowie verfahren zur herstellung eines artikels mit einer glanznickelschicht - Google Patents
Galvanisches bad oder mischung zur verwendung in einem galvanischen bad zur abscheidung einer glanznickelschicht sowie verfahren zur herstellung eines artikels mit einer glanznickelschicht Download PDFInfo
- Publication number
- EP2937450B1 EP2937450B1 EP15164491.1A EP15164491A EP2937450B1 EP 2937450 B1 EP2937450 B1 EP 2937450B1 EP 15164491 A EP15164491 A EP 15164491A EP 2937450 B1 EP2937450 B1 EP 2937450B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oder
- galvanic bath
- und
- mol
- mixture
- 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.)
- Revoked
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 349
- 229910052759 nickel Inorganic materials 0.000 title claims description 170
- 239000000203 mixture Substances 0.000 title claims description 144
- 238000000151 deposition Methods 0.000 title claims description 45
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- -1 benzoic acid sulphimide anions Chemical class 0.000 claims description 102
- RNFNDJAIBTYOQL-UHFFFAOYSA-N chloral hydrate Chemical compound OC(O)C(Cl)(Cl)Cl RNFNDJAIBTYOQL-UHFFFAOYSA-N 0.000 claims description 56
- 239000002253 acid Substances 0.000 claims description 54
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 46
- 150000007513 acids Chemical class 0.000 claims description 43
- 150000001875 compounds Chemical class 0.000 claims description 41
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 38
- 229960002327 chloral hydrate Drugs 0.000 claims description 36
- 239000000080 wetting agent Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 33
- 239000000243 solution Substances 0.000 claims description 31
- 239000007864 aqueous solution Substances 0.000 claims description 28
- 229910052739 hydrogen Inorganic materials 0.000 claims description 28
- 239000001257 hydrogen Substances 0.000 claims description 28
- 125000000217 alkyl group Chemical group 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 claims description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 21
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 20
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 19
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 19
- 230000008021 deposition Effects 0.000 claims description 19
- 125000004432 carbon atom Chemical group C* 0.000 claims description 18
- 229910001453 nickel ion Inorganic materials 0.000 claims description 18
- 230000005588 protonation Effects 0.000 claims description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 claims description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 14
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 14
- 239000004327 boric acid Substances 0.000 claims description 14
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 14
- 229910052804 chromium Inorganic materials 0.000 claims description 12
- 239000011651 chromium Substances 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 11
- 229910001369 Brass Inorganic materials 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000010951 brass Substances 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 150000007522 mineralic acids Chemical class 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 7
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 7
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 7
- 150000007524 organic acids Chemical class 0.000 claims description 6
- 235000005985 organic acids Nutrition 0.000 claims description 6
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 claims description 6
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 5
- 235000015165 citric acid Nutrition 0.000 claims description 5
- 239000001630 malic acid Substances 0.000 claims description 5
- 235000011090 malic acid Nutrition 0.000 claims description 5
- 239000001117 sulphuric acid Substances 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 150000001768 cations Chemical class 0.000 claims description 4
- 150000001450 anions Chemical class 0.000 claims description 3
- 229910001914 chlorine tetroxide Inorganic materials 0.000 claims description 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 3
- YVOFKSGFOGNJHF-UHFFFAOYSA-N [SH2]=N.C(C1=CC=CC=C1)(=O)O Chemical compound [SH2]=N.C(C1=CC=CC=C1)(=O)O YVOFKSGFOGNJHF-UHFFFAOYSA-N 0.000 claims 2
- 125000003282 alkyl amino group Chemical group 0.000 claims 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 claims 1
- 235000011149 sulphuric acid Nutrition 0.000 claims 1
- 239000010410 layer Substances 0.000 description 125
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 38
- 238000005259 measurement Methods 0.000 description 31
- 239000000470 constituent Substances 0.000 description 25
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 19
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 18
- 239000011734 sodium Substances 0.000 description 18
- 229910052792 caesium Inorganic materials 0.000 description 16
- 229910052744 lithium Inorganic materials 0.000 description 16
- 229910052700 potassium Inorganic materials 0.000 description 16
- 229910052701 rubidium Inorganic materials 0.000 description 16
- 229910052708 sodium Inorganic materials 0.000 description 16
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 14
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 11
- 239000003792 electrolyte Substances 0.000 description 11
- 150000002191 fatty alcohols Chemical class 0.000 description 11
- TVDSBUOJIPERQY-UHFFFAOYSA-N prop-2-yn-1-ol Chemical class OCC#C TVDSBUOJIPERQY-UHFFFAOYSA-N 0.000 description 11
- NJHVMXFNIZTTBV-UHFFFAOYSA-N 2,2,2-tribromoethane-1,1-diol Chemical compound OC(O)C(Br)(Br)Br NJHVMXFNIZTTBV-UHFFFAOYSA-N 0.000 description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 10
- KDOWHHULNTXTNS-UHFFFAOYSA-N hex-3-yne-2,5-diol Chemical compound CC(O)C#CC(C)O KDOWHHULNTXTNS-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 238000002156 mixing Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 235000019204 saccharin Nutrition 0.000 description 9
- 239000000901 saccharin and its Na,K and Ca salt Substances 0.000 description 9
- 229910052717 sulfur Inorganic materials 0.000 description 9
- 239000011593 sulfur Substances 0.000 description 9
- 125000003277 amino group Chemical group 0.000 description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 8
- 229940081974 saccharin Drugs 0.000 description 8
- 229920006395 saturated elastomer Polymers 0.000 description 8
- 159000000000 sodium salts Chemical class 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 7
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 7
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 7
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 7
- 229960003237 betaine Drugs 0.000 description 7
- 238000004070 electrodeposition Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 7
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 7
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 7
- DIKJULDDNQFCJG-UHFFFAOYSA-M sodium;prop-2-ene-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC=C DIKJULDDNQFCJG-UHFFFAOYSA-M 0.000 description 7
- REEBJQTUIJTGAL-UHFFFAOYSA-N 3-pyridin-1-ium-1-ylpropane-1-sulfonate Chemical compound [O-]S(=O)(=O)CCC[N+]1=CC=CC=C1 REEBJQTUIJTGAL-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 6
- 239000003651 drinking water Substances 0.000 description 6
- 235000020188 drinking water Nutrition 0.000 description 6
- 230000005012 migration Effects 0.000 description 6
- 238000013508 migration Methods 0.000 description 6
- PTECIXPBVVDNOU-UHFFFAOYSA-N molecular bromine;hydrate Chemical compound O.BrBr PTECIXPBVVDNOU-UHFFFAOYSA-N 0.000 description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 5
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 5
- DLDJFQGPPSQZKI-UHFFFAOYSA-N but-2-yne-1,4-diol Chemical compound OCC#CCO DLDJFQGPPSQZKI-UHFFFAOYSA-N 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 4
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 4
- 238000009713 electroplating Methods 0.000 description 4
- 235000019253 formic acid Nutrition 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 239000004310 lactic acid Substances 0.000 description 4
- 235000014655 lactic acid Nutrition 0.000 description 4
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 4
- 150000002815 nickel Chemical class 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 4
- BWYYYTVSBPRQCN-UHFFFAOYSA-M sodium;ethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=C BWYYYTVSBPRQCN-UHFFFAOYSA-M 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- RJPRZHQPROLZRW-UHFFFAOYSA-N 2-hydroxy-3-pyridin-1-ium-1-ylpropane-1-sulfonate Chemical compound [O-]S(=O)(=O)CC(O)C[N+]1=CC=CC=C1 RJPRZHQPROLZRW-UHFFFAOYSA-N 0.000 description 3
- DZJXTUZOSVOTHO-UHFFFAOYSA-M C(C1=CC=CC=C1)(=O)[O-].[SH2]=N.[Na+] Chemical compound C(C1=CC=CC=C1)(=O)[O-].[SH2]=N.[Na+] DZJXTUZOSVOTHO-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 241000080590 Niso Species 0.000 description 3
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 3
- 150000001299 aldehydes Chemical class 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 3
- JZJXKEWVUBVOEH-UHFFFAOYSA-N n,n-diethylprop-2-yn-1-amine Chemical compound CCN(CC)CC#C JZJXKEWVUBVOEH-UHFFFAOYSA-N 0.000 description 3
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- DGSDBJMBHCQYGN-UHFFFAOYSA-M sodium;2-ethylhexyl sulfate Chemical compound [Na+].CCCCC(CC)COS([O-])(=O)=O DGSDBJMBHCQYGN-UHFFFAOYSA-M 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical class C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 0 CC(C)(C(*)C(C)(C)OS(*)=O)N=O Chemical compound CC(C)(C(*)C(C)(C)OS(*)=O)N=O 0.000 description 2
- 229910020366 ClO 4 Inorganic materials 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- IZWSFJTYBVKZNK-UHFFFAOYSA-O N-dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonic acid Chemical compound CCCCCCCCCCCC[N+](C)(C)CCCS(O)(=O)=O IZWSFJTYBVKZNK-UHFFFAOYSA-O 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- SMVRDGHCVNAOIN-UHFFFAOYSA-L disodium;1-dodecoxydodecane;sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC SMVRDGHCVNAOIN-UHFFFAOYSA-L 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- DBJLJFTWODWSOF-UHFFFAOYSA-L nickel(ii) fluoride Chemical compound F[Ni]F DBJLJFTWODWSOF-UHFFFAOYSA-L 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229960004889 salicylic acid Drugs 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- LDHXNOAOCJXPAH-UHFFFAOYSA-M sodium;prop-2-yne-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC#C LDHXNOAOCJXPAH-UHFFFAOYSA-M 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229940124530 sulfonamide Drugs 0.000 description 2
- 150000003456 sulfonamides Chemical class 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- RPAJSBKBKSSMLJ-DFWYDOINSA-N (2s)-2-aminopentanedioic acid;hydrochloride Chemical class Cl.OC(=O)[C@@H](N)CCC(O)=O RPAJSBKBKSSMLJ-DFWYDOINSA-N 0.000 description 1
- JFXVAUXJNBZJOP-UHFFFAOYSA-N 2,2,2-trichloroacetaldehyde;hydrate Chemical compound O.ClC(Cl)(Cl)C=O JFXVAUXJNBZJOP-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- JHUFGBSGINLPOW-UHFFFAOYSA-N 3-chloro-4-(trifluoromethoxy)benzoyl cyanide Chemical compound FC(F)(F)OC1=CC=C(C(=O)C#N)C=C1Cl JHUFGBSGINLPOW-UHFFFAOYSA-N 0.000 description 1
- HUPKXMDYLBHVAK-UHFFFAOYSA-N 4-(3-hydroxypropoxy)but-2-yn-1-ol Chemical compound OCCCOCC#CCO HUPKXMDYLBHVAK-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- BMEGWHPNOKTAKA-UHFFFAOYSA-N CO.CO.C#C Chemical group CO.CO.C#C BMEGWHPNOKTAKA-UHFFFAOYSA-N 0.000 description 1
- PQMOXTJVIYEOQL-UHFFFAOYSA-N Cumarin Natural products CC(C)=CCC1=C(O)C(C(=O)C(C)CC)=C(O)C2=C1OC(=O)C=C2CCC PQMOXTJVIYEOQL-UHFFFAOYSA-N 0.000 description 1
- 201000004624 Dermatitis Diseases 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- FSOGIJPGPZWNGO-UHFFFAOYSA-N Meomammein Natural products CCC(C)C(=O)C1=C(O)C(CC=C(C)C)=C(O)C2=C1OC(=O)C=C2CCC FSOGIJPGPZWNGO-UHFFFAOYSA-N 0.000 description 1
- 239000004435 Oxo alcohol Substances 0.000 description 1
- YUJLIIRMIAGMCQ-CIUDSAMLSA-N Ser-Leu-Ser Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CO)C(O)=O YUJLIIRMIAGMCQ-CIUDSAMLSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 150000008107 benzenesulfonic acids Chemical class 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- JHRWWRDRBPCWTF-OLQVQODUSA-N captafol Chemical compound C1C=CC[C@H]2C(=O)N(SC(Cl)(Cl)C(Cl)Cl)C(=O)[C@H]21 JHRWWRDRBPCWTF-OLQVQODUSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 229960000956 coumarin Drugs 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical class NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- KXUSQYGLNZFMTE-UHFFFAOYSA-N hex-2-yne-1,1-diol Chemical compound CCCC#CC(O)O KXUSQYGLNZFMTE-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- LAIZPRYFQUWUBN-UHFFFAOYSA-L nickel chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Ni+2] LAIZPRYFQUWUBN-UHFFFAOYSA-L 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- UOCCVDMCNJYVIW-UHFFFAOYSA-N prop-2-yne-1-sulfonic acid Chemical class OS(=O)(=O)CC#C UOCCVDMCNJYVIW-UHFFFAOYSA-N 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 235000010437 saccharin and its sodium, potassium and calcium salts Nutrition 0.000 description 1
- 229910052711 selenium Chemical group 0.000 description 1
- 239000011669 selenium Chemical group 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- UGZYTYRBUHCFKW-UHFFFAOYSA-M sodium prop-2-ynyl sulfite Chemical compound [Na+].C(C#C)OS(=O)[O-] UGZYTYRBUHCFKW-UHFFFAOYSA-M 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- JSPLKZUTYZBBKA-UHFFFAOYSA-N trioxidane Chemical compound OOO JSPLKZUTYZBBKA-UHFFFAOYSA-N 0.000 description 1
- 238000009827 uniform distribution 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
- C25D3/14—Electroplating: Baths therefor from solutions of nickel or cobalt from baths containing acetylenic or heterocyclic compounds
- C25D3/16—Acetylenic compounds
-
- 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
- C25D3/14—Electroplating: Baths therefor from solutions of nickel or cobalt from baths containing acetylenic or heterocyclic compounds
- C25D3/18—Heterocyclic compounds
Definitions
- the present invention relates to a galvanic bath for depositing a bright nickel layer, a corresponding mixture for use in a galvanic bath for depositing a bright nickel layer, a corresponding method for producing an article with a bright nickel layer by depositing nickel on a corresponding workpiece, the use of a galvanic according to the invention Bath or a mixture according to the invention for the deposition or production of a bright nickel layer and an article comprising a bright nickel layer according to the invention.
- Galvanic baths and processes for the electrodeposition of a bright nickel coating are known from the prior art.
- the international patent application with the publication number WO 91/16474 A1 shows an acidic bright nickel bath containing as essential components nickel sulfate, nickel chloride, boric acid, 2-ethylhexylsulfate sodium salt as wetting agent, saccharin, formaldehyde and a betaine.
- German patent application with the publication number DE 196 10 361 A1 discloses a bath and method for the electrodeposition of semi-bright nickel.
- one or more cyclic N-allyl or N-vinylammonium compounds, in particular pyridinium compounds, are used as the brightener.
- the patent in turn, refers to a number of prior art publications concerning the electrodeposition of semi-bright nickel.
- various chemical compounds are mentioned, which can be used in the galvanic bath.
- At least one to two, possibly also more nickel salts such as, for example, nickel sulfate, nickel chloride, nickel fluoride and others, and at least one inorganic acid, such as, for example, sulfuric acid or boric acid, are always present in the baths.
- nickel salts such as, for example, nickel sulfate, nickel chloride, nickel fluoride and others
- inorganic acid such as, for example, sulfuric acid or boric acid
- German patent with the publication number describes DE 10 2008 056 470 B3 a method of inspecting a metal layer either alone on a substrate or forming part of a multilayer metal layer system, and a method of analytically controlling a deposition electrolyte for depositing such a metal layer.
- the metal layer is an electrodeposited nickel layer.
- nickel layers as corrosion-protective coatings on parts made of different materials, such as copper, brass or steel or plastic, where The nickel layers are deposited in different quality and in a specific order, namely, for example, as a semi-gloss nickel layer, shiny nickel layer, optionally. with a particularly sulfur-rich intermediate layer, and again as a semi-bright nickel layer, which is optionally deposited together with particles.
- the basic composition of a nickel deposition electrolyte is according to the publication DE 10 2008 056 470 B3 typically a so-called Watts nickel bath containing nickel, chloride, sulfate ions and boric acid, for example in the following composition: 60 g / l NiCl 2 .6H 2 O, 270 g / l NiSO 4 .6H 2 O, 45 g / l H 3 BO 3 .
- the pH of the deposition electrolyte is generally 2.5-6.0, preferably 3-4.5 and especially about 4.0.
- the deposition is carried out at a temperature of 40-70 ° C, preferably 50-60 ° C and especially about 55 ° C.
- the respective layers are electrodeposited from deposition electrolytes having different compositions, particularly with respect to the additives.
- the semi-glossy base layer on the substrate material typically contains salicylic acid, ethyne derivatives such as hexynediol or butynediol, propargyl alcohol derivatives, formaldehyde and / or chloral hydrate, or mixtures of these compounds as additives.
- the optionally deposited sulfur-rich glossy or matt intermediate layer typically contains saccharin, sulfonic acids and / or ethyne derivatives as additives.
- the shiny nickel layer typically contains sulfur-containing compounds as additives, for example toluenesulfonic acid or propargylsulfonates, and additionally saccharin instead of salicylic acid or mixtures of these compounds.
- the upper semigloss nickel layer typically contains saccharin or a saccharin salt, chloral hydrate and / or formaldehyde or else mixtures of these compounds as additives and optionally additionally particles, for example of SiO 2 , Al 2 O 3 .
- the deposition electrolytes may contain other additives, such as brighteners and wetting agents.
- CH 514683 refers to a "process and bath for electrolytic nickel plating" (title).
- the bright nickel layers are less noble than the underlying semi-bright nickel layer due to the chemical incorporation of sulfur-containing organic components.
- the sulfur-containing organic component saccharin is usually used as part of the bright nickel layer.
- the migration of nickel as a commonly used in the electroplating metal from the base material protective coating is in view of the fact that nickel is considered as one of the most common trigger of contact allergies (nickel dermatitis), a health hazard to the consumer.
- this knowledge is taken into account in Germany by the Second Ordinance to Amend the Drinking Water Ordinance (TrinkwV 2001), which came into force on 14 December 2012. Accordingly, in so-called stagnation samples of the respective alloy or coating to be examined, a maximum of 10 ⁇ g of nickel may be released into one liter of drinking water. Coatings previously used, regardless of whether duplex or triplex coatings, usually do not meet the requirements of the new drinking water ordinance.
- the galvanic bath or the corresponding mixture to be specified should enable the deposition of a bright nickel layer which also has certain typical properties of a semi-bright nickel layer. These properties include, in particular, a columnar layer structure which was hitherto known only in semi-bright nickel layers and which can be determined by measuring a significant potential difference between the semi-bright nickel layer and the bright nickel layer. An effective corrosion protection would thus already be given by a layer system of such a bright nickel layer and a final chromium layer.
- the galvanic bath according to the invention or the mixture according to the invention comprises benzoic acid sulfimide (saccharin, E954, 1,2-benzisothiazol-3 (2H) -one 1,1-dioxide, CAS Number: 81-07-2) and / or Benzoeklaresulfimidanionen as a sulfur source, which means that a bright nickel layer produced using a galvanic bath according to the invention or a mixture according to the invention is electrochemically less noble than a semi-bright nickel layer disclosed in the prior art.
- the inventive galvanic bath or mixture according to the invention comprises one, two, more than two or all compounds selected from the group consisting of chloral hydrate, bromine hydrate, formic acid, formate, acetic acid, acetate, substituted or unsubstituted aliphatic aldehydes, particularly preferably chloral hydrate (Trichloraldehydhydrat , 2,2,2-trichloroacetaldehyde hydrate, 2,2,2-trichloro-1,1-ethanediol, CAS number: 302-17-0).
- the present invention is based on the surprising finding that bright nickel layers, which are produced by means of a galvanic bath according to the invention or a mixture according to the invention, release significantly less nickel into the drinking water than conventional nickel protective layers.
- the nickel ions originate from one, two or more than two nickel salts, such as nickel sulfate, nickel chloride, nickel fluoride, which are provided in anhydrous or differently hydrated form as constituents of the galvanic bath or mixture according to the invention.
- a galvanic bath or a mixture according to the invention comprises one or more acids (component (b)), the term "acid” encompassing both the compound in dissociated and undissociated form at the respective pH.
- the acid or the acids are used in particular for buffering the pH during the electrolysis process.
- the constituents of the invention benzoic acid sulfinimide and / or Benzoeklaresulfinimidanionen (component (c)) and the optionally present (s) allylsulfonic acid and / or allylsulfonate (component (d)) are basic gloss (also primary brightener). Under glossing in particular the balance or the Leveling of unevenness in the base material understood, usually based on the use of low molecular weight organic surface-active compounds in a galvanically deposited layer.
- leveling refers to the leveling of unevenness on a surface (ntik), as for example, after a previous polishing on the surface (ntik) remain (polishing strokes).
- the polishing of a surface (n GmbH) represents a common processing step, which is carried out in particular in valves, particularly preferably in brass, zinc or zinc die-cast fittings, before electroplating.
- Brighteners thus serve a uniform distribution of an applied by means of inventive galvanic bath or inventive mixture nickel layer in the entire current density range and the deposition of a ductile, stress-free nickel layer.
- Particular preference is given here as or in component (c) benzoic acid sulfimide sodium salt (CAS number: 128-44-9) and / or as or in component (d) allylsulfonic acid sodium salt (sodium prop-2-ene-1 sulfonate, sodium allylsulfonate, prop-2-ene-1-sulfonic acid sodium salt, CAS number: 2495-39-8).
- constituents of a galvanic bath according to the invention or a mixture according to the invention such as one or more acetylenically unsaturated compounds of the formula (I) (component (e)), one or more betaines of the formula (II) (component (f)) and one or more Wetting agents (component (g)) promote, inter alia, the gloss formation of a bright nickel layer applied to a base material by means of a galvanic bath according to the invention or by means of the inventive mixture.
- Betaine of the formula (II) (component (f)) and acetylenically unsaturated compounds of the formula (I) (component (e)) are also referred to as brighteners (also secondary brighteners).
- the wetting agents contained in a galvanic bath according to the invention or in a mixture according to the invention cause a lowering of the surface tension which promotes a rapid removal of hydrogen produced during the galvanization at the cathode.
- Particularly preferred compounds of the formula (II) used are pyridiniumpropylsulfobetaine (PPS, 1- (3-sulfopropyl) pyridinium betaine, NDSB 201, 3- (1-pyridinium) -1-propanesulfonate, CAS number: 15471- 17-7) and 1- (2-hydroxy-3-sulfopropyl) pyridinium betaine (PPS-OH, CAS number: 3918-73-8). These compounds can be used singly or in combination with each other.
- the preferred compounds of the formula (II) are preferably used with other components which are referred to above or below as being preferred.
- salts of sulfosuccinic acid preferably sodium salts
- the use of salts of sulfosuccinic acid (preferably sodium salts) as wetting agents in a galvanic bath according to the invention or in a mixture according to the invention is preferred in some cases.
- the acid or acids used are particularly preferably selected from the group consisting of sulfuric acid, boric acid and hydrochloric acid.
- a particularly preferred wetting agent is a C 13 -C 15 oxo alcohol ether sulfate (CAS number: 78330-30-0).
- Also preferred as the wetting agent is sodium lauryl sulfate (sodium dodecyl sulfate, sodium dodecyl sulfate, sodium dodecyl sulfate, SLS, SDS, NLS, CAS number: 151-21-3). These compounds may be used singly or in combination, and are preferably used together with other components referred to above or below as being preferred.
- Particularly preferred compounds of the formula (IV) are 2-ethylhexylsulfate sodium salt (CAS: 126-92-1) and sodium lauryl sulfate (see above). These compounds may be used singly or in combination, and are preferably used together with other components referred to above or below as being preferred.
- compounds of the formula (V) which are selected from the group consisting of 2-butyne-1,4-diol ethoxylate (2,2 '- (but-2-yn-1,4-diylbis (oxy)) - (ethan-1-ol)), 2-butyne-1,4-diol propoxylate (4- (3-hydroxypropoxy) but-2-yn-1-ol), propargyl alcohol ethoxylate (2- (prop-2-yn-1) yloxy) ethan-1-ol), sodium propargylsulfonate (prop-2-yn-1-ylsulfite sodium salt, CAS number: 55947-46-1) and sodium vinylsulfonate (SVS, sodium ethylenesulfonate, vinylsulfonic acid sodium salt, ethylenesulfuric acid sodium salt, CAS- Number: 3039-83-6).
- These compounds may be used singly or in combination, and are preferably used together with other components referred to above or
- the individual constituents of a galvanic bath or a particularly preferred mixture according to the invention which are particularly preferred in practice are the galvanic bath or the mixture according to the invention after control analysis (for example by means of HPLC analysis) supplied on demand.
- a galvanic bath according to the invention or a mixture according to the invention in the presence of cations comprises the amount of counterions required for charge balancing.
- a galvanic bath or a mixture according to the invention which does not comprise suspended silicon oxide particles and aluminum oxide particles.
- a galvanic bath or a mixture according to the invention which does not comprise the suspended particles in the galvanic bath or in the mixture.
- a galvanic bath according to the invention or a mixture according to the invention having a pH in the range from 2.8 to 5.2, preferably from 3.8 to 4.8.
- individual components of a preferred electroplating bath according to the invention or of a preferred mixture according to the invention are particularly readily soluble in water.
- the temperature of the galvanic bath or of the mixture in step (b) is preferably in the range from 40 to 70 ° C., preferably in the range of 50-60 ° C. At such temperatures, individual components of a preferred galvanic bath according to the invention or of a preferred mixture according to the invention are particularly readily soluble in water.
- the bright nickel layer is preferably deposited on a copper, brass or zinc surface of the workpiece.
- the electrolytic nickel deposition takes place in a steel container with an acid-resistant lining (for example PVC) which is sufficient for the particular purpose or in a plastic container.
- an acid-resistant lining for example PVC
- the above-defined (preferred) constituents of a galvanic bath or a mixture according to the invention are usually dissolved in demineralized water at a temperature of 50 ° C with stirring.
- the anode material used is metallic nickel in the form of plates, squares or crowns or in any other suitable form.
- the workpiece to be nickel plated is switched as a cathode, and the electrodes are usually connected via a rectifier with direct current provided.
- the required amount of current is typically 2-8 amps per dm 2 (A / dm 2 ) of cathode area.
- the deposition rate of nickel on the workpiece connected as a cathode is generally about 1 ⁇ m nickel / minute with a current amount of 5 A / dm 2 .
- a cathode movement is often required (relative movement to the electrolyte).
- a circulation of the galvanic bath according to the invention or of the mixture according to the invention by blowing compressed air can take place (air movement).
- air movement During the current process, filtration of the galvanic bath or the mixture according to the invention is generally required.
- the analytical control of the composition of a galvanic bath according to the invention or of a mixture according to the invention as part of the method likewise according to the invention is preferably carried out by means of titration in the case of the acid and chloride concentration, in the case of the brightener concentration by HPLC analysis, in the case of wetting agents by means of measurement the surface tension and in the case of nickel (ion) concentration by chemical analysis or AAS (Atomabsorptionsspektroskopie) performed.
- AAS can also be used to determine the concentration possibly in the galvanic bath or the mixture of foreign metals present.
- the present invention additionally relates to the use of a galvanic bath or a mixture according to the invention as described above for depositing or producing a bright nickel layer.
- a galvanic bath or a mixture according to the invention as described above for depositing or producing a bright nickel layer.
- the present invention also relates to the use of a galvanic bath or a mixture as described above for the deposition or production of a bright nickel coating on an element of a fitting for a water-bearing pipeline.
- a galvanic bath or a mixture as described above for the deposition or production of a bright nickel coating on an element of a fitting for a water-bearing pipeline.
- a nickel layer deposited by means of a galvanic bath or a mixture according to the invention e.g. On a workpiece, there is a reduced tendency to release nickel ions into an aqueous solution in contact with this nickel layer as compared to conventional bright nickel layers. This is confirmed by measuring the potential of the deposited nickel layers.
- the relevant parameters for the corrosion process namely the layer thicknesses of the individual nickel layers and their potential differences with each other, can be measured in a single step.
- the application of the STEP test method makes use of the fact that the electrical potential measured during dissolution against a reference electrode changes abruptly after detachment of a nickel layer. This occurs after the dissolution of the respective nickel layers, the measured dissolution potentials depending, inter alia, on the type of the respective nickel layer. This is the case with sulfur-containing and sulfur-free nickel layers. With two sulfur-containing nickel layers, however, hardly any potential jump is measurable.
- the STEP test is a measuring method that destroys the nickel layer to be analyzed or the nickel layer system to be analyzed and is performed with a couloscope.
- the potential changes measured and graphically represented by the electrolytic detachment of individual nickel layers from a nickel system show, in the event of an abrupt change, a point of inflection from one nickel layer to the next in such a layer system.
- the endpoint of a STEP test measurement is the achievement of the base material, e.g. B. the copper layer.
- nickel potentials are measured in a solution of nickel chloride hexahydrate, sodium chloride and boric acid. A sufficient potential between semi-bright nickel and bright nickel layer is given in measurements in the above-mentioned electrolyte from -120 mV.
- Corrodkote solution 20 g / l of ammonium chloride, 3.3 g / l of ferric chloride and 0.7 g / l of copper (II) nitrate 3-hydrate in aqueous solution are used according to Brugger, Robert (1984), "The Galvanic Nickel Plating", 2nd ed. Saulgau (Eugen G. Leutze Verlag Vol. 12) p. 301 ,
- the reference bath and bath according to the invention had the same composition except for the proportion of chloral hydrate.
- the potential of a nickel foil made using a reference bath was + 484 mV; the potential of a nickel foil made using a bath of the invention with 1 g / l chloral hydrate was +582 mV; the above note applies accordingly.
- Application Examples 1 -7 preparing a plating solution by mixing water with selected ingredients (components); Concentration in mol / L:
- the pH of the galvanic bath after mixing is between 3.8 and 4.8.
- the above ingredients are incorporated in the above concentration in an aqueous solution.
- the order of addition of the individual components in the aqueous solution is not critical here. All concentration data are based on the galvanic bath.
- Examples 8 -14 preparing a plating solution by mixing water with selected ingredients (components); Concentration in mol / L:
- the pH of the galvanic bath after mixing is between 3.8 and 4.8.
- the above ingredients are incorporated in the above concentration in an aqueous solution.
- the order of addition of the individual components in the aqueous solution is not critical here. All concentration data are based on the galvanic bath.
- the non-salts selected components (components) of a galvanic bath according to the invention are added to this purified solution.
- the galvanically coated copper tubes described above under (a), (b) and (c) (1x comparison, 2x according to the invention) were then immersed separately in city water.
- the concentration of nickel / nickel ions in city water was measured after 72 hours of service life. Further measurements are carried out after a further 48 hours, 120 hours, 72 hours and 144 hours. In all cases, the water was renewed after the measurement;
- the copper tubes to be tested were also rinsed ten times with 150 ml of city water each time before further use.
- the measurement results were determined by ICP-OES spectrometer and are given in the following table. The numerical values refer in each case to the measured nickel ion concentration in ⁇ g / l.
- chloral hydrate significantly reduces the tendency to release nickel / nickel ions into the surrounding medium (here: city water), especially with long contact times (2nd to 5th measurement).
- the non-salts selected components (components) of a galvanic bath according to the invention are added to this purified solution.
- M Components (components) of the specific galvanic bath according to the invention M Component: Connection: g / L [g / mol) minor a NiSO 4 .6H 2 O 280 262.84 1.0653 a NiCl 2 .6H 2 O 60 237.68 .2524 b B (OH) 3 40 61.83 .6469 c Benzolklaresulfimid sodium salt 2 205.16 0.0097 d Allyl sulfonic acid sodium salt 1 144.12 0.0069 f Pyridiniumpropylsulfobetain 0.1 201.24 0.00050 e 2-propyn-1-ol 0.02 56.06 0.000357 e Hex-3-yne-2,5-diol 0.01 114.14 0.000088 H chloral hydrate 1 165.39 0.0060 G Sodium lauryl ether sulfate 1 416.5 0.0024
- the coating time ie the time required to deposit a bright nickel layer by means of the specific bath according to the invention, is about 15 minutes at a current density of 4 A / dm 2 .
- Application and Comparative Example 16 Preparation of a specific article according to the invention (a bath fitting as an example of a water-bearing pipeline) with a bright nickel layer:
- the constituents (components) of a specific galvanic bath to be used according to the invention for producing the article according to the invention (bath fitting with bright nickel coating) are listed in the following table "Application Example 16" and were dissolved in the stated concentration in demineralized water (preferred water temperature 55 ° C.): Table "Application Example 16" Component: Connection: g / L M [g / mol] minor a NiSO 4 .6H 2 O 280 262.84 1.0653 a NiCl 2 .6H 2 O 60 237.68 .2524 b B (OH) 3 40 61.83 .6469 c Benzolklasulfimid sodium salt 2 205.16 0.0097 f Pyridiniumpropylsulfobetain 0.15 201.24 0.00050 e
- the constituents of a galvanic bath not prepared according to the invention for comparison purposes are identical to those in Table "Application Example 16" and were also dissolved in the indicated concentration in demineralized water (preferred water temperature 55 ° C), but the galvanic bath prepared for comparison purposes does not comprise chloral hydrate ,
- the coating time ie the time for depositing a bright nickel layer by means of the specific bath according to the invention or by means of the galvanic bath not prepared according to the invention, was about 15 minutes at a current density of 4 A / dm 2 .
- the values shown represent arithmetic mean values of four measurements each.
- the coated bathroom fitting body according to the invention (as an example of an article according to the invention) released less nickel than the non-inventive coated bathroom fitting body.
- the bath used according to the invention comprised chloral hydrate, whereby the tendency for the release of nickel / nickel ions in the surrounding medium (here: town water) was significantly reduced.
- the results of the fourth and fifth week show that the nickel release stagnated and at the same time was significantly lower than the nickel release of the non-inventive coated brass fittings.
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- 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)
- Electroplating Methods And Accessories (AREA)
- Cosmetics (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL15164491T PL2937450T3 (pl) | 2014-04-25 | 2015-04-21 | Kąpiel galwaniczna lub mieszanina do zastosowania w kąpieli galwanicznej do osadzania warstwy niklu błyszczącego, jak też sposób wytwarzania produktu z warstwą niklu błyszczącego |
| SI201530067A SI2937450T1 (sl) | 2014-04-25 | 2015-04-21 | Galvanska kopel ali zmes za uporabo v galvanski kopeli za nanašanje plasti niklja z visokim leskom in postopek za izdelavo izdelka s plastjo niklja z visokim leskom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014207778.8A DE102014207778B3 (de) | 2014-04-25 | 2014-04-25 | Verwendung einer Mischung zur Verwendung in einem galvanischen Bad oder eines galvanischen Bades zur Herstellung einer Glanznickelschicht sowie Verfahren zur Herstellung eines Artikels mit einer Glanznickelschicht |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2937450A1 EP2937450A1 (de) | 2015-10-28 |
| EP2937450B1 true EP2937450B1 (de) | 2017-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15164491.1A Revoked EP2937450B1 (de) | 2014-04-25 | 2015-04-21 | Galvanisches bad oder mischung zur verwendung in einem galvanischen bad zur abscheidung einer glanznickelschicht sowie verfahren zur herstellung eines artikels mit einer glanznickelschicht |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2937450B1 (enExample) |
| JP (1) | JP6687331B2 (enExample) |
| DE (1) | DE102014207778B3 (enExample) |
| HU (1) | HUE035050T2 (enExample) |
| PL (1) | PL2937450T3 (enExample) |
| PT (1) | PT2937450T (enExample) |
| SI (1) | SI2937450T1 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021095909A1 (ko) * | 2019-11-12 | 2021-05-20 | 주식회사 엘콤 | 니켈인 합금 도금을 위한 조성물 |
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| CN115161722A (zh) * | 2022-08-25 | 2022-10-11 | 环晟光伏(江苏)有限公司 | 镀镍液及其制备方法、太阳能电池的制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021095909A1 (ko) * | 2019-11-12 | 2021-05-20 | 주식회사 엘콤 | 니켈인 합금 도금을 위한 조성물 |
Also Published As
| Publication number | Publication date |
|---|---|
| SI2937450T1 (sl) | 2017-07-31 |
| PT2937450T (pt) | 2017-06-30 |
| DE102014207778B3 (de) | 2015-05-21 |
| JP6687331B2 (ja) | 2020-04-22 |
| HUE035050T2 (en) | 2018-05-02 |
| JP2015212417A (ja) | 2015-11-26 |
| PL2937450T3 (pl) | 2017-08-31 |
| EP2937450A1 (de) | 2015-10-28 |
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