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
Application number
ES98118677T
Other languages
English (en)
Inventor
Rudolf Linde
Ulrich Dipl-Ing Buran
Hans-Jochem Dr Neuhauser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Federal Mogul Burscheid GmbH
Original Assignee
Federal Mogul Burscheid GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Federal Mogul Burscheid GmbH filed Critical Federal Mogul Burscheid GmbH
Application granted granted Critical
Publication of ES2184184T3 publication Critical patent/ES2184184T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Physical Vapour Deposition (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.
ES98118677T 1997-10-16 1998-10-02 Capa galvanica de cromo duro. Expired - Lifetime ES2184184T3 (es)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19931829A1 (de) 1999-07-08 2001-01-18 Federal Mogul Burscheid Gmbh Galvanische Hartchromschicht
EP1253220A4 (en) * 1999-12-27 2006-03-22 Nippon Piston Ring Co Ltd SLIDING ELEMENT
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
EP0909839B1 (de) 2002-12-11
EP0909839A1 (de) 1999-04-21
DE19745811A1 (de) 1999-04-22
DE59806614D1 (de) 2003-01-23
DE19745811C2 (de) 2002-06-13

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