BE900342R - Procede pour la protection de lamines plats en acier zingue au moyen d'un revetement electrolytique multicouche. - Google Patents
Procede pour la protection de lamines plats en acier zingue au moyen d'un revetement electrolytique multicouche.Info
- Publication number
- BE900342R BE900342R BE0/213481A BE213481A BE900342R BE 900342 R BE900342 R BE 900342R BE 0/213481 A BE0/213481 A BE 0/213481A BE 213481 A BE213481 A BE 213481A BE 900342 R BE900342 R BE 900342R
- Authority
- BE
- Belgium
- Prior art keywords
- zinc
- layer
- flat
- protection
- plated steel
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000011248 coating agent Substances 0.000 title 1
- 238000000576 coating method Methods 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 2
- 238000007747 plating Methods 0.000 abstract 2
- 229910052725 zinc Inorganic materials 0.000 abstract 2
- 239000011701 zinc Substances 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910001297 Zn alloy Inorganic materials 0.000 abstract 1
- 238000006388 chemical passivation reaction Methods 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 229910000423 chromium oxide Inorganic materials 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 238000009713 electroplating Methods 0.000 abstract 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
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/38—Chromatising
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Electroplating Methods And Accessories (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Procédé perfectionné pour la protection, en particulier dans des milieux agressifs, de tronçons de laminés d'acier plats, du type comprenant le dépot sur ledit tronçon laminé d'acier plat, plaqué de zinc ou d'alliages de zinc, d'un placage électrolytique à couches multiples, comprenant une couche de chrome métallique sur laquelle on dépose une couche d'oxyde de chrome, (comme exposé dans le brevet belge No. 898.905) caractérisé en ce qu'on prévoit la passivation chimique, dans une solution d'anhydride chromique de la couche de placage à base de zinc, des tronçons d'acier laminés plats, avant de réaliser la placage électrolytique à couches multiples.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19880/83A IT1161593B (it) | 1983-03-03 | 1983-03-03 | Procedimento per la protezione di laminati piani di acciaio zincato mediante rivestimento elettrolitico multistrato |
| IT22517/83A IT1163889B (it) | 1983-08-11 | 1983-08-11 | Procedimento perfezionato per la protezione in ambienti particolarmente aggressivi di laminati piani di acciaio mediante rivestimento elettrolitico multistrato |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE900342R true BE900342R (fr) | 1984-12-03 |
Family
ID=26327336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE0/213481A BE900342R (fr) | 1983-03-03 | 1984-08-10 | Procede pour la protection de lamines plats en acier zingue au moyen d'un revetement electrolytique multicouche. |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE900342R (fr) |
| FR (1) | FR2550555B2 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4707415A (en) * | 1985-03-30 | 1987-11-17 | Sumitomo Metal Industries, Ltd. | Steel strips with corrosion resistant surface layers having good appearance |
| DE3780859T2 (de) * | 1986-05-14 | 1993-02-11 | Nippon Steel Corp | Oberflaechenbehandelter stahlwerkstoff, insbesondere galvanisiertes stahlblech. |
| FR2692596B1 (fr) * | 1992-06-22 | 1995-03-31 | Lorraine Laminage | Tôle revêtue et procédé de fabrication de cette tôle. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3532608A (en) * | 1967-09-29 | 1970-10-06 | United States Steel Corp | Method of treating steel and electrolyte therefor |
| US3647650A (en) * | 1969-07-16 | 1972-03-07 | Nippon Kokan Kk | Method of treating tin plate or galvanized sheet |
| ZA812807B (en) * | 1980-05-30 | 1982-04-28 | Champion Spark Plug Co | Preventing corrosion of zinc and cadmium |
-
1984
- 1984-08-02 FR FR8412239A patent/FR2550555B2/fr not_active Expired
- 1984-08-10 BE BE0/213481A patent/BE900342R/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2550555A2 (fr) | 1985-02-15 |
| FR2550555B2 (fr) | 1988-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: ZINCROKSID S.P.A. Effective date: 19930228 |