NL194398C - Dubbele verzinkingswerkwijze voor het behandelen van een aluminiumsubstraat voor metaalplatering. - Google Patents
Dubbele verzinkingswerkwijze voor het behandelen van een aluminiumsubstraat voor metaalplatering. Download PDFInfo
- Publication number
- NL194398C NL194398C NL9002225A NL9002225A NL194398C NL 194398 C NL194398 C NL 194398C NL 9002225 A NL9002225 A NL 9002225A NL 9002225 A NL9002225 A NL 9002225A NL 194398 C NL194398 C NL 194398C
- Authority
- NL
- Netherlands
- Prior art keywords
- iron
- aluminum
- plating
- bath
- iii
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 69
- 238000007747 plating Methods 0.000 title claims description 54
- 229910052782 aluminium Inorganic materials 0.000 title claims description 51
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 51
- 229910052751 metal Inorganic materials 0.000 title claims description 43
- 239000002184 metal Substances 0.000 title claims description 43
- 239000000758 substrate Substances 0.000 title claims description 34
- 238000005246 galvanizing Methods 0.000 title claims description 27
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 44
- 229910052725 zinc Inorganic materials 0.000 claims description 44
- 239000011701 zinc Substances 0.000 claims description 44
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 40
- 238000000576 coating method Methods 0.000 claims description 33
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 31
- 229910017604 nitric acid Inorganic materials 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 claims description 29
- 238000007654 immersion Methods 0.000 claims description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 229910052759 nickel Inorganic materials 0.000 claims description 20
- -1 iron (III) ions Chemical class 0.000 claims description 17
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 11
- 229910052793 cadmium Inorganic materials 0.000 claims description 9
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 9
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 6
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims 3
- 239000000243 solution Substances 0.000 description 23
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 22
- 229910052742 iron Inorganic materials 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- HUHGPYXAVBJSJV-UHFFFAOYSA-N 2-[3,5-bis(2-hydroxyethyl)-1,3,5-triazinan-1-yl]ethanol Chemical compound OCCN1CN(CCO)CN(CCO)C1 HUHGPYXAVBJSJV-UHFFFAOYSA-N 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000000151 deposition Methods 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 229910001379 sodium hypophosphite Inorganic materials 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
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 description 1
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 238000005275 alloying Methods 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
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000085 borane Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Chemical class O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- RRIWRJBSCGCBID-UHFFFAOYSA-L nickel sulfate hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-]S([O-])(=O)=O RRIWRJBSCGCBID-UHFFFAOYSA-L 0.000 description 1
- 229940116202 nickel sulfate hexahydrate Drugs 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- JLKDVMWYMMLWTI-UHFFFAOYSA-M potassium iodate Chemical compound [K+].[O-]I(=O)=O JLKDVMWYMMLWTI-UHFFFAOYSA-M 0.000 description 1
- 239000001230 potassium iodate Substances 0.000 description 1
- 235000006666 potassium iodate Nutrition 0.000 description 1
- 229940093930 potassium iodate Drugs 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000001540 sodium lactate Substances 0.000 description 1
- 235000011088 sodium lactate Nutrition 0.000 description 1
- 229940005581 sodium lactate Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 239000011686 zinc sulphate Substances 0.000 description 1
- 235000009529 zinc sulphate Nutrition 0.000 description 1
Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1646—Characteristics of the product obtained
- C23C18/165—Multilayered product
- C23C18/1651—Two or more layers only obtained by electroless plating
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/48—Coating with alloys
- C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/54—Contact plating, i.e. electroless electrochemical plating
Landscapes
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Chemically Coating (AREA)
- Electroplating Methods And Accessories (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42080589A | 1989-10-12 | 1989-10-12 | |
| US42080589 | 1989-10-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL9002225A NL9002225A (nl) | 1991-05-01 |
| NL194398B NL194398B (nl) | 2001-11-01 |
| NL194398C true NL194398C (nl) | 2002-03-04 |
Family
ID=23667915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL9002225A NL194398C (nl) | 1989-10-12 | 1990-10-12 | Dubbele verzinkingswerkwijze voor het behandelen van een aluminiumsubstraat voor metaalplatering. |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPH03236476A (it) |
| CH (1) | CH684275A5 (it) |
| DE (1) | DE4032232C2 (it) |
| ES (1) | ES2027496A6 (it) |
| FR (1) | FR2653138B1 (it) |
| GB (1) | GB2237032B (it) |
| IT (1) | IT1241638B (it) |
| MX (1) | MX171954B (it) |
| NL (1) | NL194398C (it) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182006A (en) * | 1991-02-04 | 1993-01-26 | Enthone-Omi Inc. | Zincate solutions for treatment of aluminum and aluminum alloys |
| DE19615201A1 (de) * | 1996-04-18 | 1997-10-23 | Univ Dresden Tech | Verfahren zur Metallisierung von chemisch nicht oder schwer plattierbaren Metalloberflächen |
| DE19815220C2 (de) * | 1998-03-27 | 2003-12-18 | Univ Dresden Tech | Verfahren zur haftfesten und dichten chemischen oder galvanischen Metallisierung von Substraten sowie Haftvermittler zur Durchführung des Verfahrens |
| DE10246453A1 (de) | 2002-10-04 | 2004-04-15 | Enthone Inc., West Haven | Verfahren zur stromlosen Abscheidung von Nickel |
| US7407689B2 (en) * | 2003-06-26 | 2008-08-05 | Atotech Deutschland Gmbh | Aqueous acidic immersion plating solutions and methods for plating on aluminum and aluminum alloys |
| JP5796963B2 (ja) * | 2011-01-25 | 2015-10-21 | 東洋鋼鈑株式会社 | ハードディスク装置用アルミニウム基板の製造方法 |
| DE102011115802B4 (de) * | 2011-10-12 | 2015-03-12 | C. Hafner Gmbh + Co. Kg | Verfahren zur Korrosionsschutzbehandlung eines Werkstücks aus einem Aluminiumwerkstoff, insbesondere aus einer Aluminiumknetlegierung |
| JP5890235B2 (ja) | 2012-04-10 | 2016-03-22 | 東洋鋼鈑株式会社 | ハードディスク用基板の製造方法 |
| DE102012018159A1 (de) * | 2012-09-14 | 2014-03-20 | Feindrahtwerk Adolf Edelhoff Gmbh & Co. Kg | Verfahren zum Beschichten von Aluminiumleitern |
| US9770757B2 (en) | 2015-08-13 | 2017-09-26 | GM Global Technology Operations LLC | Method of making sound interface in overcast bimetal components |
| DE102019112883B4 (de) * | 2019-05-16 | 2024-05-16 | Pac Tech - Packaging Technologies Gmbh | Beschichtungsbad zur stromlosen Beschichtung eines Substrats |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2929742A (en) * | 1957-03-05 | 1960-03-22 | Minjer Clara Hinderina De | Electroless deposition of nickel |
| DE1089934B (de) * | 1959-08-29 | 1960-09-29 | Jenaer Glaswerk Schott & Gen | Optisches Kronglas |
| DE1254935B (de) * | 1960-12-31 | 1967-11-23 | Bayer Ag | Waessriges Bad zur chemischen Abscheidung von borhaltigen Metallueberzuegen |
| US3719525A (en) * | 1969-01-09 | 1973-03-06 | Control Data Corp | Magnetic record members having a protective recording surface and method of making |
| US3738818A (en) * | 1971-06-03 | 1973-06-12 | Control Data Corp | High recording density magnetic media with square b-h loop |
| GB1359595A (en) * | 1972-02-29 | 1974-07-10 | Vandervell Products Ltd | Bearings for railway vehicle axles |
| US4150172A (en) * | 1977-05-26 | 1979-04-17 | Kolk Jr Anthony J | Method for producing a square loop magnetic media for very high density recording |
| US4346128A (en) * | 1980-03-31 | 1982-08-24 | The Boeing Company | Tank process for plating aluminum substrates including porous aluminum castings |
| US4411730A (en) * | 1980-10-01 | 1983-10-25 | United Technologies Corporation | Selective chemical milling of recast surfaces |
| AU555641B2 (en) * | 1984-03-05 | 1986-10-02 | Omi International Corp. | Aqueous electroless nickel plating bath |
| JPS61106783A (ja) * | 1984-10-30 | 1986-05-24 | Nippon Paint Co Ltd | アルミニウム表面洗浄剤 |
-
1990
- 1990-10-09 ES ES9002559A patent/ES2027496A6/es not_active Expired - Lifetime
- 1990-10-10 IT IT67773A patent/IT1241638B/it active IP Right Grant
- 1990-10-11 CH CH3271/90A patent/CH684275A5/fr not_active IP Right Cessation
- 1990-10-11 DE DE4032232A patent/DE4032232C2/de not_active Expired - Fee Related
- 1990-10-11 MX MX022826A patent/MX171954B/es unknown
- 1990-10-12 NL NL9002225A patent/NL194398C/nl not_active IP Right Cessation
- 1990-10-12 JP JP2275081A patent/JPH03236476A/ja active Pending
- 1990-10-12 FR FR9012639A patent/FR2653138B1/fr not_active Expired - Fee Related
- 1990-10-12 GB GB9022266A patent/GB2237032B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB9022266D0 (en) | 1990-11-28 |
| NL9002225A (nl) | 1991-05-01 |
| FR2653138B1 (fr) | 1993-12-10 |
| DE4032232A1 (de) | 1991-04-18 |
| IT1241638B (it) | 1994-01-25 |
| GB2237032A (en) | 1991-04-24 |
| FR2653138A1 (fr) | 1991-04-19 |
| DE4032232C2 (de) | 1994-04-07 |
| JPH03236476A (ja) | 1991-10-22 |
| IT9067773A1 (it) | 1992-04-10 |
| IT9067773A0 (it) | 1990-10-10 |
| MX171954B (es) | 1993-11-24 |
| CH684275A5 (fr) | 1994-08-15 |
| GB2237032B (en) | 1993-10-06 |
| ES2027496A6 (es) | 1992-06-01 |
| NL194398B (nl) | 2001-11-01 |
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