FR2382515A1 - - Google Patents
Info
- Publication number
- FR2382515A1 FR2382515A1 FR7806036A FR7806036A FR2382515A1 FR 2382515 A1 FR2382515 A1 FR 2382515A1 FR 7806036 A FR7806036 A FR 7806036A FR 7806036 A FR7806036 A FR 7806036A FR 2382515 A1 FR2382515 A1 FR 2382515A1
- Authority
- FR
- France
- Prior art keywords
- zinc
- electroplating
- chromium
- salt
- chromed
- 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.)
- Withdrawn
Links
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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
-
- 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
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
- C25D3/06—Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium
-
- 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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- 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
-
- 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
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/623—Porosity of the layers
-
- 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
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/625—Discontinuous layers, e.g. microcracked layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12479—Porous [e.g., foamed, spongy, cracked, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
- Y10T428/12792—Zn-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12826—Group VIB metal-base component
- Y10T428/12847—Cr-base component
Abstract
L'invention concerne un procédé de chromage galvanoplastique d'articles en zinc. On met la surface d'un substrat de zinc portant un dépôt de chrome métallique formé par galvanoplastie avec un électrolyte au chrome trivalent, au contact d'une solution aqueuse ayant un pH de 5 à 12, contenant un sel métallique dissous d'un acide faible ne formant pas un complexe soluble avec le zinc, en particulier un carbonate, un phosphate ou un silicate d'un métal alcalin, tel que le sodium ou le potassium; ce procédé permet en particulier d'obtenir un article constitué d'un substrat de zinc portant un revêtement de chrome microporeux formé par galvanoplastie épais d'environ 0,025 à 2,5 mu , les micropores contenant un sel basique de zinc insoluble dans l'eau. L'invention s'applique en particulier à un traitement postérieur de substrats de zinc chromés pour accroître considérablement leur résistance à la corrosion.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9289/77A GB1584454A (en) | 1978-02-14 | 1978-02-14 | Treatment of chromium electrodeposit |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2382515A1 true FR2382515A1 (fr) | 1978-09-29 |
Family
ID=9869123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7806036A Withdrawn FR2382515A1 (fr) | 1978-02-14 | 1978-03-02 |
Country Status (11)
Country | Link |
---|---|
US (1) | US4159230A (fr) |
JP (1) | JPS53114736A (fr) |
AU (1) | AU505715B2 (fr) |
BE (1) | BE864564A (fr) |
CA (1) | CA1116119A (fr) |
DE (1) | DE2809534A1 (fr) |
FR (1) | FR2382515A1 (fr) |
GB (1) | GB1584454A (fr) |
IT (1) | IT7867382A0 (fr) |
NL (1) | NL7802042A (fr) |
SE (1) | SE7802283L (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1212859B (it) * | 1983-03-21 | 1989-11-30 | Centro Speriment Metallurg | Laminati piatti di acciaio rivestiti perfezionati |
US4940639A (en) * | 1988-07-07 | 1990-07-10 | Sumitomo Metal Industries, Ltd. | Zn-Ni alloy-plated steel sheet with improved impact adhesion |
GB0029954D0 (en) * | 2000-12-08 | 2001-01-24 | Caradon Mira Ltd | Improvements in or relating to metal finishes |
BRPI0924283B1 (pt) | 2009-02-13 | 2019-11-12 | Atotech Deutschland Gmbh | parte cromada e método de fabricação da mesma |
EP3744874A1 (fr) | 2019-05-29 | 2020-12-02 | Coventya SAS | Produit plaqué doté d'un revêtement résistant à la corrosion |
US11230777B2 (en) | 2019-06-20 | 2022-01-25 | Hamilton Sundstrand Corporation | Wear-resistant coating |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2548420A (en) * | 1948-08-27 | 1951-04-10 | Poor & Co | Method of producing lustrous zinc |
DE2332159A1 (de) * | 1972-06-27 | 1974-01-17 | Virginia Chemicals Inc | Spuelmittel fuer chromplattierte gegenstaende |
JPS496981A (fr) * | 1972-04-04 | 1974-01-22 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2796361A (en) * | 1953-04-15 | 1957-06-18 | Poor & Co | Method of making corrosion protected articles |
US3323881A (en) * | 1963-11-29 | 1967-06-06 | Inland Steel Co | Ferrous base coated with zinc and chromium |
-
1978
- 1978-02-08 CA CA296,628A patent/CA1116119A/fr not_active Expired
- 1978-02-14 GB GB9289/77A patent/GB1584454A/en not_active Expired
- 1978-02-16 AU AU33357/78A patent/AU505715B2/en not_active Expired
- 1978-02-23 NL NL7802042A patent/NL7802042A/xx not_active Application Discontinuation
- 1978-02-24 IT IT7867382A patent/IT7867382A0/it unknown
- 1978-03-01 US US05/882,442 patent/US4159230A/en not_active Expired - Lifetime
- 1978-03-01 SE SE7802283A patent/SE7802283L/xx unknown
- 1978-03-02 FR FR7806036A patent/FR2382515A1/fr not_active Withdrawn
- 1978-03-03 BE BE185675A patent/BE864564A/fr unknown
- 1978-03-03 JP JP2437378A patent/JPS53114736A/ja active Granted
- 1978-03-06 DE DE19782809534 patent/DE2809534A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2548420A (en) * | 1948-08-27 | 1951-04-10 | Poor & Co | Method of producing lustrous zinc |
JPS496981A (fr) * | 1972-04-04 | 1974-01-22 | ||
DE2332159A1 (de) * | 1972-06-27 | 1974-01-17 | Virginia Chemicals Inc | Spuelmittel fuer chromplattierte gegenstaende |
Non-Patent Citations (1)
Title |
---|
CHEMICAL ABSTRACTS, vol. 82, no. 2, 13-01-1975, page 335, ref. 9346t, Columbus, Ohio (US); & JP-A-49 006 981 (NIPPON KOKAN K.K.), 18-02-1974 * |
Also Published As
Publication number | Publication date |
---|---|
DE2809534A1 (de) | 1978-09-07 |
AU505715B2 (en) | 1979-11-29 |
IT7867382A0 (it) | 1978-02-24 |
NL7802042A (nl) | 1978-09-06 |
JPS53114736A (en) | 1978-10-06 |
US4159230A (en) | 1979-06-26 |
CA1116119A (fr) | 1982-01-12 |
JPS5711398B2 (fr) | 1982-03-04 |
GB1584454A (en) | 1981-02-11 |
SE7802283L (sv) | 1978-09-05 |
BE864564A (fr) | 1978-09-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |