EP0096753B1 - Verfahren zur stromlosen Erzeugung von korrosionsschützenden Schichten auf Aluminiumbauteilen - Google Patents
Verfahren zur stromlosen Erzeugung von korrosionsschützenden Schichten auf Aluminiumbauteilen Download PDFInfo
- Publication number
- EP0096753B1 EP0096753B1 EP83104742A EP83104742A EP0096753B1 EP 0096753 B1 EP0096753 B1 EP 0096753B1 EP 83104742 A EP83104742 A EP 83104742A EP 83104742 A EP83104742 A EP 83104742A EP 0096753 B1 EP0096753 B1 EP 0096753B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aluminium
- corrosion
- grams per
- per liter
- zno
- 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.)
- Expired
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007797 corrosion Effects 0.000 title claims abstract description 12
- 238000005260 corrosion Methods 0.000 title claims abstract description 12
- 239000004411 aluminium Substances 0.000 title claims abstract 8
- 238000004519 manufacturing process Methods 0.000 title description 6
- 230000002401 inhibitory effect Effects 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- 239000007864 aqueous solution Substances 0.000 claims abstract 3
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 238000001035 drying Methods 0.000 claims abstract 2
- 229910052797 bismuth Inorganic materials 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 14
- 239000010410 layer Substances 0.000 description 14
- 229910052725 zinc Inorganic materials 0.000 description 12
- 239000011701 zinc Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 6
- 238000004532 chromating Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000004381 surface treatment Methods 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LKCUKVWRIAZXDU-UHFFFAOYSA-L zinc;hydron;phosphate Chemical compound [Zn+2].OP([O-])([O-])=O LKCUKVWRIAZXDU-UHFFFAOYSA-L 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
- C23C18/31—Coating with metals
Definitions
- the invention relates to a method for the currentless production of corrosion-protective layers on aluminum components, in particular on hollow body components with a honeycomb structure, and corrosion-protected aluminum components.
- protective layers of zinc or zinc-containing alloys to aluminum. This can be done, for example, by metal spraying, by galvanizing or by roll cladding. Although the methods lead to good adhesion and mechanical resistance of the protective layer, they are relatively complex.
- Chromating and phosphating processes are also known, by means of which top layers can be applied to aluminum.
- solutions made from monozinc phosphate, phosphoric acid and fluoride are used.
- the resulting layers are about 1-5 / um thick and soluble in acids and alkalis. They are therefore mainly used as a primer for paints and plastic coatings.
- the layers are protected with a thin, clear methacrylate or cellulose acetate coating, since otherwise a corrosion attack is to be feared (see Wernicke, Pinner, Zurbrügg and Weiner, "The surface treatment of aluminum", p. 193).
- Chromating layers are relatively easy to carry out, but do not offer reliable corrosion protection in a highly corrosive environment.
- chemically produced oxide layers are only suitable as a base for organic coatings.
- GB-A-1 439 183 discloses a process for the production of aluminum articles by soldering, the aluminum oxide being removed before the soldering treatment by a pickling bath and a coating of zinc or a zinc alloy being applied to the parts to be soldered. During the subsequent soldering, part of the zinc coating is melted and thus contributes to the soldered connection.
- the object of the present invention is to develop a method for producing corrosion-protected components in which the coatings are relatively easy to manufacture, have high wear resistance and corrosion resistance.
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Coating With Molten Metal (AREA)
- Building Environments (AREA)
- Coating By Spraying Or Casting (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT83104742T ATE22934T1 (de) | 1982-06-11 | 1983-05-13 | Verfahren zur stromlosen erzeugung von korrosionsschuetzenden schichten auf aluminiumbauteilen. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3222140A DE3222140C2 (de) | 1982-06-11 | 1982-06-11 | Anwendung des Tauch-Verzinkungsverfahrens auf die Herstellung korrosionsgeschützter Aluminiumbauteile und korrosionsgeschütztes Aluminiumbauteil |
| DE3222140 | 1982-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0096753A1 EP0096753A1 (de) | 1983-12-28 |
| EP0096753B1 true EP0096753B1 (de) | 1986-10-15 |
Family
ID=6165918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83104742A Expired EP0096753B1 (de) | 1982-06-11 | 1983-05-13 | Verfahren zur stromlosen Erzeugung von korrosionsschützenden Schichten auf Aluminiumbauteilen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0096753B1 (no) |
| JP (1) | JPS596383A (no) |
| AT (1) | ATE22934T1 (no) |
| DE (1) | DE3222140C2 (no) |
| NO (1) | NO159025C (no) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220837A (ja) * | 1986-03-20 | 1987-09-29 | Hitachi Electronics Eng Co Ltd | 表面検査システム |
| EP1718785A2 (en) * | 2004-02-17 | 2006-11-08 | Tyco Printed Circuit Group LP | Method for zinc coating aluminum |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2650886A (en) * | 1951-01-19 | 1953-09-01 | Aluminum Co Of America | Procedure and bath for plating on aluminum |
| DE2143965C3 (de) * | 1971-09-02 | 1981-11-26 | Vereinigte Aluminium-Werke Ag, 5300 Bonn | Verwendung eines Lotes zum flußmittelfreien Hartlöten von Aluminiumwerkstoffen in Schutzgas, Inertgas oder Vakuum |
| FR2201350B2 (no) * | 1972-09-26 | 1977-08-26 | Chausson Usines Sa | |
| US3982055A (en) * | 1974-07-25 | 1976-09-21 | Eltra Corporation | Method for zincating aluminum articles |
-
1982
- 1982-06-11 DE DE3222140A patent/DE3222140C2/de not_active Expired
-
1983
- 1983-05-13 AT AT83104742T patent/ATE22934T1/de not_active IP Right Cessation
- 1983-05-13 EP EP83104742A patent/EP0096753B1/de not_active Expired
- 1983-06-08 NO NO832077A patent/NO159025C/no unknown
- 1983-06-10 JP JP58102937A patent/JPS596383A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| EP0096753A1 (de) | 1983-12-28 |
| ATE22934T1 (de) | 1986-11-15 |
| JPH032952B2 (no) | 1991-01-17 |
| NO832077L (no) | 1983-12-12 |
| NO159025C (no) | 1988-11-23 |
| NO159025B (no) | 1988-08-15 |
| JPS596383A (ja) | 1984-01-13 |
| DE3222140A1 (de) | 1983-12-15 |
| DE3222140C2 (de) | 1984-05-30 |
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