EP3559318A1 - Wässriger, alkalischer elektrolyt zur abscheidung von zinkhaltigen schichten auf oberflächen von metallischem stückgut - Google Patents
Wässriger, alkalischer elektrolyt zur abscheidung von zinkhaltigen schichten auf oberflächen von metallischem stückgutInfo
- Publication number
- EP3559318A1 EP3559318A1 EP17822685.8A EP17822685A EP3559318A1 EP 3559318 A1 EP3559318 A1 EP 3559318A1 EP 17822685 A EP17822685 A EP 17822685A EP 3559318 A1 EP3559318 A1 EP 3559318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zinc
- iron
- manganese
- piece goods
- aqueous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000003792 electrolyte Substances 0.000 title claims abstract description 56
- 239000011701 zinc Substances 0.000 title claims description 69
- 229910052725 zinc Inorganic materials 0.000 title claims description 69
- 229910052751 metal Inorganic materials 0.000 title abstract description 14
- 239000002184 metal Substances 0.000 title abstract description 14
- 238000000151 deposition Methods 0.000 title abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 93
- 229910052742 iron Inorganic materials 0.000 claims abstract description 48
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 24
- 239000011572 manganese Substances 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- -1 iron ions Chemical class 0.000 claims abstract description 8
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910001437 manganese ion Inorganic materials 0.000 claims abstract description 4
- 238000005260 corrosion Methods 0.000 claims description 39
- 230000007797 corrosion Effects 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 4
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 2
- 229910000640 Fe alloy Inorganic materials 0.000 claims 1
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 37
- 229910052759 nickel Inorganic materials 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 8
- 239000008139 complexing agent Substances 0.000 description 8
- 238000005246 galvanizing Methods 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 238000009713 electroplating Methods 0.000 description 7
- 239000006259 organic additive Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000010953 base metal Substances 0.000 description 6
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 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 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 238000002161 passivation Methods 0.000 description 4
- 239000012286 potassium permanganate Substances 0.000 description 4
- 229910021653 sulphate ion Inorganic materials 0.000 description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 3
- 229910001297 Zn alloy Inorganic materials 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- HVTHJRMZXBWFNE-UHFFFAOYSA-J sodium zincate Chemical compound [OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Zn+2] HVTHJRMZXBWFNE-UHFFFAOYSA-J 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 239000013566 allergen Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 238000004210 cathodic protection Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000174 gluconic acid Substances 0.000 description 2
- 235000012208 gluconic acid Nutrition 0.000 description 2
- 150000002506 iron compounds Chemical class 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- 150000002697 manganese compounds Chemical class 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 150000003752 zinc compounds Chemical class 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- QGNLULLJNKXKOI-UHFFFAOYSA-N 1-methyl-2h-pyridin-1-ium-1-carboxylate Chemical compound [O-]C(=O)[N+]1(C)CC=CC=C1 QGNLULLJNKXKOI-UHFFFAOYSA-N 0.000 description 1
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-KLVWXMOXSA-N L-gluconic acid Chemical compound OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)C(O)=O RGHNJXZEOKUKBD-KLVWXMOXSA-N 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- NFVZIERLAZUYBQ-UHFFFAOYSA-N [K].[Zn] Chemical compound [K].[Zn] NFVZIERLAZUYBQ-UHFFFAOYSA-N 0.000 description 1
- KSHPUQQHKKJVIO-UHFFFAOYSA-N [Na].[Zn] Chemical compound [Na].[Zn] KSHPUQQHKKJVIO-UHFFFAOYSA-N 0.000 description 1
- GOKIPOOTKLLKDI-UHFFFAOYSA-N acetic acid;iron Chemical compound [Fe].CC(O)=O.CC(O)=O.CC(O)=O GOKIPOOTKLLKDI-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- GENLSXMKBFUFBU-UHFFFAOYSA-N benzyl pyridin-1-ium-1-carboxylate Chemical compound C=1C=CC=C[N+]=1C(=O)OCC1=CC=CC=C1 GENLSXMKBFUFBU-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- RAQDACVRFCEPDA-UHFFFAOYSA-L ferrous carbonate Chemical compound [Fe+2].[O-]C([O-])=O RAQDACVRFCEPDA-UHFFFAOYSA-L 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000011656 manganese carbonate Substances 0.000 description 1
- 235000006748 manganese carbonate Nutrition 0.000 description 1
- 229940093474 manganese carbonate Drugs 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- 229940099596 manganese sulfate Drugs 0.000 description 1
- 239000011702 manganese sulphate Substances 0.000 description 1
- 235000007079 manganese sulphate Nutrition 0.000 description 1
- WJZHMLNIAZSFDO-UHFFFAOYSA-N manganese zinc Chemical compound [Mn].[Zn] WJZHMLNIAZSFDO-UHFFFAOYSA-N 0.000 description 1
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 229960001841 potassium permanganate Drugs 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003628 tricarboxylic acids Chemical class 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- MKRZFOIRSLOYCE-UHFFFAOYSA-L zinc;methanesulfonate Chemical compound [Zn+2].CS([O-])(=O)=O.CS([O-])(=O)=O MKRZFOIRSLOYCE-UHFFFAOYSA-L 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
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/565—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of zinc
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
Definitions
- the present invention relates to an aqueous, alkaline electrolyte and a method for the deposition of zinc-containing layers
- the present invention relates to an aqueous, alkaline electrolyte and a method for the deposition of zinc-containing layers on surfaces of piece goods, in which the piece goods is introduced into the aqueous alkaline electrolyte.
- the invention furthermore relates to a piece goods provided with a zinc-containing layer and to the use of the zinc-containing layer as corrosion protection on metallic piece goods, in particular those made of iron and steel.
- a widely used and established method in the art is the application of a metallic coating to the metallic workpiece to be protected.
- workpieces made of iron and steel are often galvanized in order to protect them from corrosive environmental influences.
- the coating metal in the corrosive medium electrochemically nobler or base behave than the material base metal alone. If that is Coating metal behaves subordinate, it acts as a sacrificial anode in the corrosive medium in the sense of a cathodic protection against the base metal.
- the corrosion protection of zinc based on the fact that it is still less noble than the base metal and therefore initially attracts the corrosive attack exclusively on itself.
- zinc coatings are particularly suitable in the field of functional coatings.
- the zinc layer can be used with various chemical and physical
- Processes are applied, for example in the hot dip process, where alloys are common, but in particular by means of electrolytic
- Electrolytic compositions are described in numerous patents; In the following, only the essential electrolyte types are listed:
- Chloride electrolytes are almost exclusively in the Piece electroplating used for relatively fast and sometimes high-gloss galvanizing
- the electrodeposited zinc layer normally sacrifices itself so rapidly in corrosive media such as saline solutions, acids or alkalis to form massive, voluminous corrosion products, so that almost all of them themselves are sacrificed by an additional barrier layer, typically one
- the corrosion protection obtained is usually expressed in terms of two types of corrosion: the coating corrosion, ie the formation of zinc corrosion products, also known as “white corrosion", and the base metal corrosion, in the case of iron or steel also called “red rust”.
- the coating corrosion ie the formation of zinc corrosion products, also known as "white corrosion”
- the base metal corrosion in the case of iron or steel also called “red rust”.
- Common test methods are the neutral salt spray test DIN EN ISO 9227 or ASTM B1 17 as well as climate change tests such as VDA 233-102.
- the zinc + passivation system has reached a technical limit that can not be exceeded, but is sufficient for many applications.
- numerous zinc alloys co-deposits of zinc with one or more other metals
- zinc / cobalt and zinc / iron both with very low alloy contents of less than 1% Co or Fe
- zinc / nickel > 7% Ni
- zinc / nickel with a nickel content of 13-15% which is the current optimum in terms of corrosion protection, heat resistance and avoidance of contact corrosion with aluminum alloys, has meanwhile become established as the only zinc alloy system.
- this layer is widely used.
- the other zinc electroplated zinc electroplated alloys were completely or largely displaced by zinc / nickel.
- nickel has the disadvantage of being a strong allergen.
- zinc / nickel layers sometimes precipitate when the nickel content becomes too high, and this already starts at about 17% nickel.
- Such a layer is in Relative to the parent metal is no longer base, and therefore it loses its function as a sacrificial anode in the cathodic corrosion protection system.
- the object of the present invention is to provide a zinc-containing layer which, even without nickel, has the highest possible
- the necessarily resulting corrosion products should be as inconspicuous as possible, especially not white and voluminous as the typical zinc corrosion products.
- JP63176490A which describes a phosphatizable zinc / iron / manganese layer, but this is a process in one
- Sulphate electrolytes with very high current densities and belt speeds as is customary for electrolytic strip galvanizing.
- Sulphate electrolytes are not suitable for piece electroplating because they are optimized for the high speed and current densities (about a factor of 50-100 more than usual in piece electroplating) and moreover react very sensitively to different anode-cathode spacings. In addition, they are difficult or impossible to adjust with organic additives.
- strip galvanizing the anode-cathode distance is fixed and does not vary practically.
- the piece electroplating parts are coated, not just flat sheet metal, but finished molded or cast parts with z.T. sophisticated three-dimensional geometry. Therefore, the teaching described in JP63176490A is not useful for the present task.
- Zinc, iron and manganese are said to be in a wide range
- an aqueous, alkaline electrolyte for electrodeposition of a zinc, iron, manganese-containing layer on surfaces of metallic piece goods, in particular piece goods made of iron and / or steel characterized in that the electrolyte contains: Zinc ions in an amount of 4-60 g / l, preferably 4-45 g / l, more preferably 4-30 g / l, even more preferably 5-20 g / l, especially 7-10 g / l;
- Iron ions in an amount of 0.5-30 g / l, preferably 0.5-25 g / l, more preferably 0.6-25 g / l, even more preferably 0.7-10 g / 1, in particular from 1 to 3 g / l;
- Manganese ions in an amount of 0.1-15 g / l, preferably 0.1-10 g / l, more preferably 0.2-8 g / l, even more preferably 0.2-5 g / l in particular from 0.3 to 1 g / l.
- anions such as acetate, carbonate, chloride, silicate, sulfate, as counterions to the abovementioned cations and, together with the sodium and potassium ions, as conductive salts, and / or
- This layer can be passivated in trivalent or chromium-free conversion layers and, moreover, can still be provided with organic or inorganic topcoats.
- the electrolyte according to the invention has the following economic and ecological advantages:
- the electrolyte according to the invention does not contain nickel, which would like to be avoided as a strong allergen for reasons of occupational safety.
- the corrosion protection that can be generated with this electrolyte can compete with the zinc / nickel layers according to the prior art and thus represents a much better tolerated alternative.
- Zinc, iron and manganese are essential for humans and generally well tolerated.
- the electrolyte according to the invention is alkaline, preferably highly alkaline with a pH of more than 13, preferably 13.5-14.5, in particular about 14. Beyond that, however, pose no special dangers. Despite the increase in the alloying partners from one to two and the associated complexity of the electrolyte according to the invention is to operate with the same efficiency as an alkaline zinc / nickel bath.
- Suitable sources of zinc ions may be soluble zinc compounds such as zinc chloride, zinc sulfate or organic zinc compounds such as zinc methanesulfonate. Usually, zinc oxide or even metallic zinc is dissolved in the highly alkaline electrolyte and thus produces the necessary zincate ions.
- Suitable sources of iron ions can be soluble iron compounds such as iron chloride, iron sulfate, iron carbonate or organic
- Iron compounds such as iron acetate.
- Suitable sources of manganese ions may be soluble manganese compounds such as manganese chloride, manganese sulfate, manganese carbonate or potassium permanganate. The latter would be reduced in the bath mixture preferably with a little methanol to a soluble manganese compound.
- the electrolyte complexing agent in particular amines,
- Further optional constituents of the electrolyte are additives selected from the group consisting of brighteners, wetting agents and mixtures thereof. These include preferably benzylpyridinium carboxylate, nicotinic acid, N-methylpyridinium carboxylate and aldehydes.
- the anode is preferably made of steel, nickel, nickel-plated steel, platinum-plated titanium or another platinum-plated inert metal or mixed-oxide-coated titanium or another mixed metal-coated inert metal.
- the connected as a cathode metallic workpieces are attached to the frame or coated in a drum or other suitable for bulk cargo equipment.
- a method is also provided for the galvanic deposition of zinc-containing layers on surfaces of piece goods, in which the piece goods are introduced into an electrolyte, as described above, and zinc-containing layers are electrodeposited on the piece goods.
- the deposition is preferably carried out at a temperature of 20 to 40 ° C, more preferably at a temperature of 25 ° C.
- the current density in the deposition is preferably in a range of 0.1 to 20 A / dm ⁇ 2>, in particular from 0.5 to 3 A / dm ⁇ 2>.
- Another object of the present invention is a zinc-containing layer prepared by a method as described above.
- the zinc, iron, manganese-containing layer contains metallic zinc and iron as well as metallic and / or oxidic manganese.
- the weight fractions of the elements can be measured by energy dispersive X-ray spectroscopy, EDX.
- the weight fraction of the elements in a zinc, iron, manganese-containing layer deposited by the method according to the invention is usually in the following ranges:
- Zinc is usually in the range of 40% by weight to 96% by weight, preferably from 65% by weight to 92% by weight, more preferably from 77% by weight to 89% by weight, based in each case on the total weight of zinc, iron, manganese.
- the proportion by weight of iron is usually in the range from 4% by weight to 50% by weight, preferably from 8% by weight to 30% by weight, more preferably from 10% by weight to 20% by weight, based in each case on the total weight of zinc , Iron, manganese.
- the proportion by weight of manganese is usually in the range from 0.05% by weight to 10% by weight, preferably from 0.1% by weight to 5% by weight, more preferably from 0.5% by weight to 3% by weight, in each case based on the total weight of zinc, iron, manganese.
- the thickness of the zinc-containing layer may vary, for example, depending on the desired anti-corrosion properties. For the most Applications, it has proven to be favorable, the zinc-containing layer with a mean layer thickness of 3 ⁇ to 30 ⁇ , preferably from 5 ⁇ to 20 ⁇ , and in particular of 7 ⁇ ⁇ ⁇ 15 ⁇ adjust.
- Layer thickness can be Magnetinduktiv, by means of X-ray fluorescence on copper parts or by measuring a break in the
- Scanning electron microscope can be determined.
- the zinc, iron, manganese-containing layer with adapted passivation is zinc, iron, manganese-containing layer with adapted passivation
- Articles or articles which have a zinc, iron, manganese-containing layer according to the invention can therefore be permanently and thus particularly advantageously protected against corrosion.
- Articles or articles which have a zinc-containing layer according to the invention are also the subject of the present invention.
- a zinc, iron, manganese-containing layer prepared from an aqueous, alkaline electrolyte according to claim 1 as corrosion protection
- Potassium zincate electrolyte iron: 1 1, 8-12.5%, manganese: 0.2-2.0%, remainder zinc sodium zincate electrolyte: iron: 1 1, 9-12.5%, manganese: 0.2-2.0 %, Remainder zinc
- Both sheets were passivated in SurTec 680 Chromittechnik and dried.
- the dried sheets were annealed at 120 ° C for 24 hours to reduce corrosion protection in accordance with VDA requirements.
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Abstract
Description
Claims
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DE102016015366 | 2016-12-22 | ||
PCT/EP2017/084331 WO2018115413A1 (de) | 2016-12-22 | 2017-12-22 | Wässriger, alkalischer elektrolyt zur abscheidung von zinkhaltigen schichten auf oberflächen von metallischem stückgut |
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EP3559318A1 true EP3559318A1 (de) | 2019-10-30 |
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US (1) | US11578419B2 (de) |
EP (1) | EP3559318A1 (de) |
JP (1) | JP7002548B2 (de) |
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WO (1) | WO2018115413A1 (de) |
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JPWO2021117882A1 (ja) * | 2019-12-11 | 2021-12-09 | ユケン工業株式会社 | アルカリ性亜鉛鉄めっき浴 |
DE102020204356A1 (de) | 2020-04-03 | 2021-10-07 | Thyssenkrupp Steel Europe Ag | Gehärtetes Blechbauteil, hergestellt durch Warmumformen eines Stahlflachprodukts und Verfahren zu dessen Herstellung |
CN119695304A (zh) * | 2024-12-17 | 2025-03-25 | 广西大学 | 一种全气候锌基电池水合深共晶电解液及其应用 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63176490A (ja) * | 1987-01-16 | 1988-07-20 | Nisshin Steel Co Ltd | 耐食性およびリン酸塩処理性に優れた表面処理鋼板 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56166390A (en) * | 1980-05-28 | 1981-12-21 | Nippon Steel Corp | Zn-co type alloy coated steel plate of superior corrosion resistance |
JPS58210191A (ja) | 1982-05-29 | 1983-12-07 | Nisshin Steel Co Ltd | Zn−Fe合金めつき鋼板の製造法 |
US4488942A (en) | 1983-08-05 | 1984-12-18 | Omi International Corporation | Zinc and zinc alloy electroplating bath and process |
DE3619385A1 (de) | 1986-06-09 | 1987-12-10 | Elektro Brite Gmbh | Saures sulfathaltiges bad fuer die galvanische abscheidung von zn-fe-legierungen |
US4957594A (en) | 1988-02-19 | 1990-09-18 | Nippon Steel Corporation | Process for producing a zinc or zinc alloy coated steel sheet having excellent spot weldability |
DE3819892A1 (de) | 1988-06-09 | 1989-12-14 | Schering Ag | Alkalisches waessriges bad zur galvanischen abscheidung von zink-eisen-legierungen |
KR910003036B1 (ko) | 1988-12-30 | 1991-05-17 | 포항종합제철 주식회사 | 고내식성 철-망간계 이층도금강판 및 그 제조방법 |
KR920010778B1 (ko) * | 1990-12-31 | 1992-12-17 | 포항종합제철 주식회사 | 도금밀착성, 인산염처리성 및 내수밀착성이 우수한 이층 합금도금강판 및 그 제조방법 |
US5597465A (en) * | 1994-08-05 | 1997-01-28 | Novamax Itb S.R.L. | Acid aqueous phosphatic solution and process using same for phosphating metal surfaces |
DE19615664A1 (de) * | 1996-04-19 | 1997-10-23 | Surtec Produkte Und Systeme Fu | Chrom(VI)freie Chromatschicht sowie Verfahren zu ihrer Herstellung |
DE19840019C1 (de) * | 1998-09-02 | 2000-03-16 | Atotech Deutschland Gmbh | Wäßriges alkalisches cyanidfreies Bad zur galvanischen Abscheidung von Zink- oder Zinklegierungsüberzügen sowie Verfahren |
US6387229B1 (en) * | 1999-05-07 | 2002-05-14 | Enthone, Inc. | Alloy plating |
JP4447100B2 (ja) * | 2000-02-15 | 2010-04-07 | ディップソール株式会社 | アルカリ性亜鉛及び亜鉛合金めっき浴 |
DE10306823B4 (de) | 2003-02-19 | 2010-07-08 | Enthone Inc., West Haven | Verfahren und Elektrolyt zur Hochgeschwindigkeitsabscheidung von Zink-Mangan-Legierungen |
DE102005049789A1 (de) | 2005-10-18 | 2007-04-19 | Basf Ag | Wässriges, alkylisches, cyanidfreies Bad zur galvanischen Abscheidung von Zink- und Zinklegierungsüberzügen |
ATE554190T1 (de) | 2009-08-25 | 2012-05-15 | Thyssenkrupp Steel Europe Ag | Verfahren zum herstellen eines mit einem metallischen, vor korrosion schützenden überzug versehenen stahlbauteils und stahlbauteil |
ES2788080T3 (es) * | 2009-09-08 | 2020-10-20 | Atotech Deutschland Gmbh | Polímeros con grupos terminales amino y su uso como aditivos para baños galvanoplásticos de zinc y de aleaciones de zinc |
DE102012024616A1 (de) | 2012-12-17 | 2014-06-18 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Stahlblech und Formteil daraus |
US10041175B2 (en) * | 2014-04-08 | 2018-08-07 | Nippon Steel & Sumitomo Metal Corporation | Plated steel sheet |
JP2016098382A (ja) | 2014-11-18 | 2016-05-30 | 互応化学工業株式会社 | 水溶性化合物、アルカリ性亜鉛めっき液用の添加剤、アルカリ性亜鉛めっき液、及び電気亜鉛めっき方法 |
MX368366B (es) * | 2015-07-22 | 2019-09-30 | Dipsol Chem | Metodo de electrodeposicion de aleacion de zinc. |
-
2017
- 2017-12-22 US US16/472,217 patent/US11578419B2/en active Active
- 2017-12-22 CN CN201780079887.XA patent/CN110291229B/zh active Active
- 2017-12-22 WO PCT/EP2017/084331 patent/WO2018115413A1/de unknown
- 2017-12-22 EP EP17822685.8A patent/EP3559318A1/de active Pending
- 2017-12-22 JP JP2019533422A patent/JP7002548B2/ja active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63176490A (ja) * | 1987-01-16 | 1988-07-20 | Nisshin Steel Co Ltd | 耐食性およびリン酸塩処理性に優れた表面処理鋼板 |
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WO2018115413A1 (de) | 2018-06-28 |
JP2020503440A (ja) | 2020-01-30 |
CN110291229B (zh) | 2022-04-29 |
CN110291229A (zh) | 2019-09-27 |
US11578419B2 (en) | 2023-02-14 |
US20200115814A1 (en) | 2020-04-16 |
JP7002548B2 (ja) | 2022-01-20 |
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