BE900342R - PROCESS FOR THE PROTECTION OF FLAT LAMINATES OF ZINC-PLATED STEEL BY MEANS OF A MULTI-LAYER ELECTROLYTIC COATING. - Google Patents
PROCESS FOR THE PROTECTION OF FLAT LAMINATES OF ZINC-PLATED STEEL BY MEANS OF A MULTI-LAYER ELECTROLYTIC COATING.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
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.Improved method for protecting, in particular in aggressive environments, sections of flat rolled steel, of the type comprising the deposition on said rolled section of flat steel, plated with zinc or zinc alloys, of a plating multi-layer electrolytic, comprising a layer of metallic chromium on which a layer of chromium oxide is deposited, (as described in Belgian patent No. 898.905) characterized in that chemical passivation is provided in a solution of chromic anhydride of the zinc-based plating layer, flat-rolled steel sections, before performing the multi-layer electroplating.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19880/83A IT1161593B (en) | 1983-03-03 | 1983-03-03 | PROCEDURE FOR THE PROTECTION OF GALVANIZED STEEL LAMINATES BY MULTILAYER ELECTROLYTIC COATING |
| IT22517/83A IT1163889B (en) | 1983-08-11 | 1983-08-11 | PERFECTED PROCEDURE FOR THE PROTECTION IN PARTICULARLY AGGRESSIVE ENVIRONMENTS OF LAMINATED STEEL PLANS BY MULTILAYER ELECTROLYTIC COATING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE900342R true BE900342R (en) | 1984-12-03 |
Family
ID=26327336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE0/213481A BE900342R (en) | 1983-03-03 | 1984-08-10 | PROCESS FOR THE PROTECTION OF FLAT LAMINATES OF ZINC-PLATED STEEL BY MEANS OF A MULTI-LAYER ELECTROLYTIC COATING. |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE900342R (en) |
| FR (1) | FR2550555B2 (en) |
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 |
| ES2033726T3 (en) * | 1986-05-14 | 1993-04-01 | Nippon Steel Corporation | SURFACE TREATED STEEL MATERIAL, PARTICULARLY STEEL PLATE WITH ELECTROLYTIC COATING. |
| FR2692596B1 (en) * | 1992-06-22 | 1995-03-31 | Lorraine Laminage | Coated sheet and method of manufacturing the sheet. |
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/en not_active Expired
- 1984-08-10 BE BE0/213481A patent/BE900342R/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2550555B2 (en) | 1988-12-30 |
| FR2550555A2 (en) | 1985-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: ZINCROKSID S.P.A. Effective date: 19930228 |