ES2184184T3 - Capa galvanica de cromo duro. - Google Patents
Capa galvanica de cromo duro.Info
- Publication number
- ES2184184T3 ES2184184T3 ES98118677T ES98118677T ES2184184T3 ES 2184184 T3 ES2184184 T3 ES 2184184T3 ES 98118677 T ES98118677 T ES 98118677T ES 98118677 T ES98118677 T ES 98118677T ES 2184184 T3 ES2184184 T3 ES 2184184T3
- Authority
- ES
- Spain
- Prior art keywords
- layer
- hard chrome
- chrome
- galvanica
- rings
- 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 - Lifetime
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
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
- C25D15/02—Combined electrolytic and electrophoretic processes with charged materials
-
- 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
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex 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
- C25D5/18—Electroplating using modulated, pulsed or reversing current
-
- 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
- C25D5/615—Microstructure of the layers, e.g. mixed structure
- C25D5/617—Crystalline 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Physical Vapour Deposition (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
UNA CAPA GALVANICA DE CROMO DURO CON UNA MALLA DE HENDIDURAS QUE SE ENCUENTRA DE MANERA PARCIAL O TOTAL POR TODO EL GROSOR DE LA CAPA, Y QUE TIENE EN LAS HENDIDURAS INTRODUCIDAS O ENCAPSULADAS PARTICULAS SOLIDAS, QUE SE COMPONEN AL MENOS DE DOS CAPAS DE CROMO DURO, ESTANDO SEDIMENTADA AL MENOS UNA CAPA POR CORRIENTE CONTINUA PULSANTE, DE TAL MANERA QUE EL CROMO SE ENCUENTRA EN DIFERENTES FORMAS DE CRISTALIZACION. EL CROMO DURO PUEDE ESTAR EN ALEACION ADEMAS CON LOS METALES WOLFRAMIO, VANADIO O MOLIBDENO. LA CAPA GALVANICA DE CROMO DURO SE PUEDE UTILIZAR SOBRE TODO COMO RECUBRIMIENTO DE SUPERFICIES DE USO DE ANILLOS DE EMBOLOS, Y LOS ANILLOS DE EMBOLOS RECUBIERTOS SE UTILIZAN CON ELEVADA DURACION EN CONDICIONES DE EXTREMA TEMPERATURA Y DESGASTE EN MAQUINAS DE COMBUSTION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19745811A DE19745811C2 (de) | 1997-10-16 | 1997-10-16 | Galvanische Hartchromschicht, Verwendung und Verfahren zu deren Herstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2184184T3 true ES2184184T3 (es) | 2003-04-01 |
Family
ID=7845774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES98118677T Expired - Lifetime ES2184184T3 (es) | 1997-10-16 | 1998-10-02 | Capa galvanica de cromo duro. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0909839B1 (es) |
DE (2) | DE19745811C2 (es) |
ES (1) | ES2184184T3 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19931829A1 (de) | 1999-07-08 | 2001-01-18 | Federal Mogul Burscheid Gmbh | Galvanische Hartchromschicht |
WO2001048267A1 (fr) * | 1999-12-27 | 2001-07-05 | Nippon Piston Ring Co., Ltd. | Element coulissant |
DE102005023627B4 (de) * | 2005-05-21 | 2010-05-06 | Federal-Mogul Burscheid Gmbh | Stahlkolbering |
DE102007038188B4 (de) * | 2007-08-13 | 2018-11-15 | Federal-Mogul Burscheid Gmbh | Verschleißfest beschichteter Kolbenring und Verfahren zu dessen Herstellung |
DE102007050811A1 (de) | 2007-10-24 | 2009-04-30 | Robert Bosch Gmbh | Verschleißschutzschicht sowie Verfahren zu ihrer Herstellung |
DE102015105761A1 (de) * | 2015-04-15 | 2016-10-20 | HDO Druckguss- und Oberflächentechnik GmbH | Bauteil mit aufgebrachter Chromschicht mit Wolframanteil und Molybdänanteil und Verfahren zur Herstellung eines solchen Bauteils mittels ternärer Abscheidung |
DE102020105003A1 (de) * | 2020-02-26 | 2021-08-26 | Federal-Mogul Burscheid Gmbh | Kolbenring mit Hartchromschicht und verbessertem Einlaufverhalten |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3531410A1 (de) * | 1985-09-03 | 1987-03-05 | Goetze Ag | Galvanische hartchromschicht |
IT1215985B (it) * | 1988-03-04 | 1990-02-22 | Elca Srl | Procedimento elettrochimico per la realizzazione di rivestimenti di cromo e metalli simili mediante corrente pulsante ad inversione periodica della polarita' |
DE4011201C1 (en) * | 1990-04-06 | 1991-08-22 | Lpw-Chemie Gmbh, 4040 Neuss, De | Coating workpiece with chromium for improved corrosion resistance - comprises using aq. electrolyte soln. contg. chromic acid sulphate ions, and fluoro:complexes to increase deposition |
IT1267394B1 (it) * | 1994-02-18 | 1997-02-05 | Ind S R L | Procedimento per la realizzazione di riporti galvanici compositi in cromo duro con una fase dispersa e riporto anti-usura realizzato con |
-
1997
- 1997-10-16 DE DE19745811A patent/DE19745811C2/de not_active Expired - Lifetime
-
1998
- 1998-10-02 DE DE59806614T patent/DE59806614D1/de not_active Expired - Lifetime
- 1998-10-02 ES ES98118677T patent/ES2184184T3/es not_active Expired - Lifetime
- 1998-10-02 EP EP98118677A patent/EP0909839B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0909839A1 (de) | 1999-04-21 |
EP0909839B1 (de) | 2002-12-11 |
DE19745811A1 (de) | 1999-04-22 |
DE19745811C2 (de) | 2002-06-13 |
DE59806614D1 (de) | 2003-01-23 |
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