JPWO2020009096A1 - 3価クロムメッキ液およびこれを用いたクロムメッキ方法 - Google Patents
3価クロムメッキ液およびこれを用いたクロムメッキ方法 Download PDFInfo
- Publication number
- JPWO2020009096A1 JPWO2020009096A1 JP2020529002A JP2020529002A JPWO2020009096A1 JP WO2020009096 A1 JPWO2020009096 A1 JP WO2020009096A1 JP 2020529002 A JP2020529002 A JP 2020529002A JP 2020529002 A JP2020529002 A JP 2020529002A JP WO2020009096 A1 JPWO2020009096 A1 JP WO2020009096A1
- Authority
- JP
- Japan
- Prior art keywords
- plating solution
- trivalent chromium
- chromium plating
- plated
- solution according
- 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.)
- Granted
Links
- 238000007747 plating Methods 0.000 title claims abstract description 123
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 43
- 239000011651 chromium Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 12
- 150000003839 salts Chemical class 0.000 claims abstract description 42
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 39
- 238000005260 corrosion Methods 0.000 claims abstract description 27
- 230000007797 corrosion Effects 0.000 claims abstract description 27
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 23
- 239000008139 complexing agent Substances 0.000 claims abstract description 21
- 125000001309 chloro group Chemical group Cl* 0.000 claims abstract description 17
- 150000001845 chromium compounds Chemical class 0.000 claims abstract description 12
- 150000001732 carboxylic acid derivatives Chemical group 0.000 claims description 22
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 19
- 239000011593 sulfur Substances 0.000 claims description 19
- 229910052717 sulfur Inorganic materials 0.000 claims description 19
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 13
- 238000009713 electroplating Methods 0.000 claims description 11
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 8
- 239000007795 chemical reaction product Substances 0.000 claims description 7
- RNFNDJAIBTYOQL-UHFFFAOYSA-N chloral hydrate Chemical compound OC(O)C(Cl)(Cl)Cl RNFNDJAIBTYOQL-UHFFFAOYSA-N 0.000 claims description 7
- 229960002327 chloral hydrate Drugs 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 239000000901 saccharin and its Na,K and Ca salt Substances 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 6
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 claims description 6
- 229940081974 saccharin Drugs 0.000 claims description 5
- 235000019204 saccharin Nutrition 0.000 claims description 5
- 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 claims description 4
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- NGPGDYLVALNKEG-OLXYHTOASA-N diammonium L-tartrate Chemical compound [NH4+].[NH4+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O NGPGDYLVALNKEG-OLXYHTOASA-N 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 3
- 239000004480 active ingredient Substances 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- HTKFORQRBXIQHD-UHFFFAOYSA-N allylthiourea Chemical compound NC(=S)NCC=C HTKFORQRBXIQHD-UHFFFAOYSA-N 0.000 claims description 3
- 229960001748 allylthiourea Drugs 0.000 claims description 3
- 150000001805 chlorine compounds Chemical group 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 239000006179 pH buffering agent Substances 0.000 claims 1
- 239000006174 pH buffer Substances 0.000 abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 54
- 235000002639 sodium chloride Nutrition 0.000 description 34
- 229910052759 nickel Inorganic materials 0.000 description 27
- 238000012360 testing method Methods 0.000 description 23
- 208000014451 palmoplantar keratoderma and congenital alopecia 2 Diseases 0.000 description 10
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 8
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- 239000004327 boric acid Substances 0.000 description 5
- DSHWASKZZBZKOE-UHFFFAOYSA-K chromium(3+);hydroxide;sulfate Chemical compound [OH-].[Cr+3].[O-]S([O-])(=O)=O DSHWASKZZBZKOE-UHFFFAOYSA-K 0.000 description 5
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 5
- 229910000356 chromium(III) sulfate Inorganic materials 0.000 description 5
- 239000011696 chromium(III) sulphate Substances 0.000 description 5
- 235000015217 chromium(III) sulphate Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 235000019270 ammonium chloride Nutrition 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 150000001735 carboxylic acids Chemical class 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- -1 aliphatic monocarboxylic acids Chemical class 0.000 description 3
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 description 3
- 239000001103 potassium chloride Substances 0.000 description 3
- 235000011164 potassium chloride Nutrition 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- ZOJBYZNEUISWFT-UHFFFAOYSA-N allyl isothiocyanate Chemical compound C=CCN=C=S ZOJBYZNEUISWFT-UHFFFAOYSA-N 0.000 description 2
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- 235000010323 ascorbic acid Nutrition 0.000 description 2
- 229960005070 ascorbic acid Drugs 0.000 description 2
- 239000011668 ascorbic acid Substances 0.000 description 2
- NGPGDYLVALNKEG-UHFFFAOYSA-N azanium;azane;2,3,4-trihydroxy-4-oxobutanoate Chemical compound [NH4+].[NH4+].[O-]C(=O)C(O)C(O)C([O-])=O NGPGDYLVALNKEG-UHFFFAOYSA-N 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 description 2
- 235000015165 citric acid Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 235000011151 potassium sulphates Nutrition 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000001433 sodium tartrate Substances 0.000 description 2
- 229960002167 sodium tartrate Drugs 0.000 description 2
- 235000011004 sodium tartrates Nutrition 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 125000004149 thio group Chemical group *S* 0.000 description 2
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- KPWDGTGXUYRARH-UHFFFAOYSA-N 2,2,2-trichloroethanol Chemical compound OCC(Cl)(Cl)Cl KPWDGTGXUYRARH-UHFFFAOYSA-N 0.000 description 1
- BWUNQEXPLIAUOU-UHFFFAOYSA-N 2-[amino(azaniumylidene)methyl]sulfanylacetate Chemical compound NC(=N)SCC(O)=O BWUNQEXPLIAUOU-UHFFFAOYSA-N 0.000 description 1
- HYMJHROUVPWYNQ-UHFFFAOYSA-N 2-amino-1,3-thiazol-4-one Chemical compound NC1=NC(=O)CS1 HYMJHROUVPWYNQ-UHFFFAOYSA-N 0.000 description 1
- YSHYSAKBZQCSQY-UHFFFAOYSA-N 2-amino-5,6-dihydro-1,3-thiazin-4-one Chemical compound NC1=NC(=O)CCS1 YSHYSAKBZQCSQY-UHFFFAOYSA-N 0.000 description 1
- ICCLGNPZARKJKF-UHFFFAOYSA-N 3-[amino(azaniumylidene)methyl]sulfanylpropanoate Chemical compound NC(=N)SCCC(O)=O ICCLGNPZARKJKF-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910021555 Chromium Chloride Inorganic materials 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
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- WINXNKPZLFISPD-UHFFFAOYSA-M Saccharin sodium Chemical compound [Na+].C1=CC=C2C(=O)[N-]S(=O)(=O)C2=C1 WINXNKPZLFISPD-UHFFFAOYSA-M 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- DRUIESSIVFYOMK-UHFFFAOYSA-N Trichloroacetonitrile Chemical compound ClC(Cl)(Cl)C#N DRUIESSIVFYOMK-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- RRJWBVADVLSHDL-UHFFFAOYSA-N [Cr].S(N)(O)(=O)=O Chemical compound [Cr].S(N)(O)(=O)=O RRJWBVADVLSHDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 235000016720 allyl isothiocyanate Nutrition 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- YBPOEDKYWDVVTP-UHFFFAOYSA-N azanium;2-methylprop-2-ene-1-sulfonate Chemical compound [NH4+].CC(=C)CS([O-])(=O)=O YBPOEDKYWDVVTP-UHFFFAOYSA-N 0.000 description 1
- 125000005619 boric acid group Chemical group 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 1
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- IDAGXRIGDWCIET-SDFKWCIISA-L disodium;(2s,3s,4s,5r)-2,3,4,5-tetrahydroxyhexanedioate Chemical compound [Na+].[Na+].[O-]C(=O)[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O IDAGXRIGDWCIET-SDFKWCIISA-L 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229910000457 iridium oxide Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 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 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 description 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 1
- BTAAXEFROUUDIL-UHFFFAOYSA-M potassium;sulfamate Chemical compound [K+].NS([O-])(=O)=O BTAAXEFROUUDIL-UHFFFAOYSA-M 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 description 1
- QDWYPRSFEZRKDK-UHFFFAOYSA-M sodium;sulfamate Chemical compound [Na+].NS([O-])(=O)=O QDWYPRSFEZRKDK-UHFFFAOYSA-M 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- FAKFSJNVVCGEEI-UHFFFAOYSA-J tin(4+);disulfate Chemical compound [Sn+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O FAKFSJNVVCGEEI-UHFFFAOYSA-J 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 description 1
- 239000001393 triammonium citrate Substances 0.000 description 1
- 235000011046 triammonium citrate Nutrition 0.000 description 1
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 1
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 description 1
Images
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
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
- C25D3/10—Electroplating: Baths therefor from solutions of chromium characterised by the organic bath constituents used
-
- 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
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
- C25D3/06—Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium
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- 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
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Abstract
Description
更に、炭素数が2〜4で、クロロ基を3つ以上有する有機化合物を含有させたことを特徴とする3価クロムメッキ液である。
3価クロムメッキ:
表1に記載の3価クロム化合物、錯化剤、伝導性塩、pH緩衝剤を60℃の水に添加、混合し、溶解した後に、炭素数が2〜4で、クロロ基を3つ以上有する有機化合物、硫黄含有有機化合物を添加、混合し、最後に硫酸、アンモニア水等でpHを調整し、3価クロムメッキ液を調製した。ABS樹脂に対し、銅メッキ(株式会社JCU製「CU−BRITE EP−30」、半光沢ニッケルメッキ(株式会社JCU製「CF−24T」)、光沢ニッケルメッキ(株式会社JCU製「HI−BRITE #88」)、マイクロポーラスニッケルメッキ(株式会社JCU製「MP−NI 308」)を施したものに、表1に記載の浴温、電流密度10A/dm2で3分という条件でクロムメッキを行い、試験片を得た。この試験片についてCASS試験(JIS H 8502)を行った。CASS試験80時間後の試験片の顕微鏡写真を図1および2に示した。図中に記載のレイティングナンバー(R.N.)は、全腐食率で評価した。なお、クロメート処理は株式会社JCU製「EBACHRO−500」を使用し、浴温40℃、陰極電流密度が0.2A/dm2で1分の条件で行った。
3価クロムメッキ:
表2に記載の3価クロム化合物、錯化剤、伝導性塩、pH緩衝剤を60℃の水に添加、混合し、溶解した後に、炭素数が2〜4で、クロロ基を3つ以上有する有機化合物、硫黄含有有機化合物を添加、混合し、最後に硫酸、アンモニア水等でpHを調整し、3価クロムメッキ液を調製した。ABS樹脂に対し、銅メッキ(株式会社JCU製「CU−BRITE EP−30」、半光沢ニッケルメッキ(株式会社JCU製「CF−24T」)、光沢ニッケルメッキ(株式会社JCU製「HI−BRITE #88」)、マイクロポーラスニッケルメッキ(株式会社JCU製「MP−NI 308」)を施したものに、表2に記載の浴温、電流密度10A/dm2で3分という条件でクロムメッキを行い、試験片を得た。この試験片についてCASS試験(JIS H 8502)を行った。CASS試験80時間後の試験片の顕微鏡写真を図3に示した。レイティングナンバー(R.N.)は、全腐食率で評価した。その結果も表2に示した。
3価クロムメッキ浴:
以下の組成1〜3に記載の3価クロム化合物、錯化剤、伝導性塩、pH緩衝剤を50℃の水に添加、混合し、溶解した後に、炭素数が2〜4で、クロロ基を3つ以上有する有機化合物を添加、混合し、最後に塩酸、アンモニア水等でpHを調整し、3価クロムメッキ液を調製した。
塩基性硫酸クロム 64g/L
ギ酸アンモニウム 16g/L
塩化カリウム 165g/L
塩化アンモニウム 100g/L
臭化アンモニウム 6g/L
ほう酸 67g/L
抱水クロラール(810 g/L) 0.1mL/L
塩基性硫酸クロム 64g/L
ギ酸アンモニウム 16g/L
塩化ナトリウム 75g/L
塩化カリウム 165g/L
塩化アンモニウム 100g/L
臭化アンモニウム 6g/L
ほう酸 67g/L
抱水クロラール(810 g/L) 0.1mL/L
塩基性硫酸クロム 64g/L
酒石酸アンモニウム 30g/L
硫酸カリウム 150g/L
硫酸アンモニウム 20g/L
ほう酸 80g/L
抱水クロラール(810 g/L) 0.1mL/L
3価クロムメッキ:
表3に記載の3価クロム化合物、錯化剤、伝導性塩、pH緩衝剤を60℃の水に添加、混合し、溶解した後に、炭素数が2〜4で、クロロ基を3つ以上有する有機化合物を添加、混合し、最後に塩酸、アンモニア水でpHを調整し、3価クロムメッキ液を調製した。ABS樹脂に対し、銅メッキ(株式会社JCU製「CU−BRITE EP−30」、半光沢ニッケルメッキ(株式会社JCU製「CF−24T」)、光沢ニッケルメッキ(株式会社JCU製「HI−BRITE #88」)、マイクロポーラスニッケルメッキ(株式会社JCU製「MP−NI 308」)を施したものに、表3に記載の浴温、電流密度10A/dm2で3分という条件でクロムメッキを行い、試験片を得た。この試験片についてCASS試験(JIS H 8502)を行った。CASS試験80時間後のレイティングナンバー(R.N.)は、全腐食率で評価した。その結果も表3に示した。なお、クロメート処理は株式会社JCU製「EBACHRO−500」を使用し、浴温40℃、陰極電流密度が0.2A/dm2で1分の条件で行った。
以 上
Claims (16)
- 3価クロム化合物、錯化剤、伝導性塩、pH緩衝剤を含有する3価クロムメッキ液に、
更に、炭素数が2〜4で、クロロ基を3つ以上有する有機化合物を含有させたことを特徴とする3価クロムメッキ液。 - 炭素数が2〜4で、クロロ基を3つ以上有する有機化合物が、抱水クロラールおよび/またはトリクロロエチレンである請求項1記載の3価クロムメッキ液。
- 伝導性塩が、硫酸塩である請求項1または2記載の3価クロムメッキ液。
- 更に、硫黄含有有機化合物を含有する請求項3記載の3価クロムメッキ液。
- 伝導性塩が、硫酸塩であり、
錯化剤が、ヒドロキシ基を2つ以上、カルボキシ基を2つ以上有するカルボン酸またはその塩であり、
硫黄含有有機化合物が、サッカリンまたはその塩と、
アリル基を有する硫黄含有有機化合物、カルバミミドイルチオ基を有するカルボン酸および/またはその脱水反応物からなる群から選ばれる1種以上の組合せである請求項3記載の3価クロムメッキ液。 - ヒドロキシ基を2つ以上有するカルボン酸またはその塩が、酒石酸または酒石酸ジアンモニウムである請求項5記載の3価クロムメッキ液。
- アリル基を有する硫黄含有有機化合物がアリルスルホン酸ナトリウムおよび/またはアリルチオ尿素である請求項5または6記載の3価クロムメッキ液。
- 錯化剤として、更に、カルボキシ基を2つ以上有し、炭素数が4以上であるカルボン酸またはその塩を用いる請求項5〜7の何れかに記載の3価クロムメッキ液。
- カルボキシ基を2つ以上有し、炭素数が4以上であるカルボン酸またはその塩が、フタル酸および/またはアジピン酸である請求項8記載の3価クロムメッキ液。
- 伝導性塩が、塩化物である請求項1または2記載の3価クロムメッキ液。
- 炭素数が2〜4で、クロロ基を3つ以上有する有機化合物を有効成分とする3価クロムメッキ液用添加剤。
- 被メッキ物を、請求項1〜10の何れかに記載の3価クロムメッキ液で電気メッキすることを特徴とする被メッキ物へのクロムメッキ方法。
- 被メッキ物に電気メッキした後、クロメート処理を行う請求項12記載の被メッキ物へのクロムメッキ方法。
- 被メッキ物を、請求項1〜10の何れかに記載の3価クロムメッキ液で電気メッキすることを特徴とする被メッキ物の耐食性向上方法。
- 被メッキ物に電気メッキした後、クロメート処理を行う請求項14記載の被メッキ物の耐食性向上方法。
- 被メッキ物を、請求項1〜10の何れかに記載の3価クロムメッキ液で電気メッキすることにより得られるクロムメッキ製品。
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