DE3868400D1 - Elektrochemischer prozess zur herstellung von plattierungen aus chrom oder aehnlichen metallen mittels pulsierendem strom mit periodisch umkehrender polaritaet und dazugehoerende einrichtungen. - Google Patents

Elektrochemischer prozess zur herstellung von plattierungen aus chrom oder aehnlichen metallen mittels pulsierendem strom mit periodisch umkehrender polaritaet und dazugehoerende einrichtungen.

Info

Publication number
DE3868400D1
DE3868400D1 DE8888105380T DE3868400T DE3868400D1 DE 3868400 D1 DE3868400 D1 DE 3868400D1 DE 8888105380 T DE8888105380 T DE 8888105380T DE 3868400 T DE3868400 T DE 3868400T DE 3868400 D1 DE3868400 D1 DE 3868400D1
Authority
DE
Germany
Prior art keywords
layer
electrochemical process
plating
chrome
production
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 - Fee Related
Application number
DE8888105380T
Other languages
English (en)
Inventor
Luigi Blesio
Mario Leoni
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.)
Elca Srl
Original Assignee
Elca Srl
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 Elca Srl filed Critical Elca Srl
Application granted granted Critical
Publication of DE3868400D1 publication Critical patent/DE3868400D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

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)
  • Cell Electrode Carriers And Collectors (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Secondary Cells (AREA)
DE8888105380T 1988-03-04 1988-04-05 Elektrochemischer prozess zur herstellung von plattierungen aus chrom oder aehnlichen metallen mittels pulsierendem strom mit periodisch umkehrender polaritaet und dazugehoerende einrichtungen. Expired - Fee Related DE3868400D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8819644A IT1215985B (it) 1988-03-04 1988-03-04 Procedimento elettrochimico per la realizzazione di rivestimenti di cromo e metalli simili mediante corrente pulsante ad inversione periodica della polarita'

Publications (1)

Publication Number Publication Date
DE3868400D1 true DE3868400D1 (de) 1992-03-26

Family

ID=11160040

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888105380T Expired - Fee Related DE3868400D1 (de) 1988-03-04 1988-04-05 Elektrochemischer prozess zur herstellung von plattierungen aus chrom oder aehnlichen metallen mittels pulsierendem strom mit periodisch umkehrender polaritaet und dazugehoerende einrichtungen.

Country Status (5)

Country Link
EP (1) EP0330722B1 (de)
AT (1) ATE72587T1 (de)
BR (1) BR8901046A (de)
DE (1) DE3868400D1 (de)
IT (1) IT1215985B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933896C1 (de) * 1989-10-11 1990-10-11 Lpw-Chemie Gmbh, 4040 Neuss, De
US5326448A (en) * 1992-10-15 1994-07-05 Telectronics Pacing Systems, Inc. Method for reducing the polarization of bioelectrical stimulation leads using surface enhancement, and product made thereby
DE19745811C2 (de) * 1997-10-16 2002-06-13 Federal Mogul Burscheid Gmbh Galvanische Hartchromschicht, Verwendung und Verfahren zu deren Herstellung
JP2000017482A (ja) 1998-06-26 2000-01-18 Nippon Piston Ring Co Ltd 耐摩耗性、疲労強度に優れた積層構造を有するクロムめっき皮膜
RU2014115534A (ru) * 2011-10-10 2015-11-20 Зумлион Хеви Индастри Сайенс Энд Текнолоджи Ко., Лтд. Подающий цилиндр, способ изготовления подающего цилиндра и насосное оборудование, имеющее подающий цилиндр
CN102330127B (zh) * 2011-10-10 2012-12-05 中联重科股份有限公司 输送缸及其制备方法以及包括其的泵送设备
EP3368706A4 (de) 2015-10-27 2019-05-01 Métal Protection Lenoli Inc. Elektrolyseverfahren und -vorrichtung zur oberflächenbehandlung von eisenfreien metallen
US10457405B1 (en) 2018-04-24 2019-10-29 Triumph Aerostructures, Llc. Composite aerostructure with integrated heating element
BR122023020216A2 (pt) 2018-05-03 2024-01-16 Qarbon Aerospace (Foundation), Llc Aeroestrutura

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975254A (en) * 1974-08-13 1976-08-17 Westinghouse Electric Corporation Forward-reverse pulse cycling anodizing and electroplating process power supply
US4092226A (en) * 1974-12-11 1978-05-30 Nikolaus Laing Process for the treatment of metal surfaces by electro-deposition of metal coatings at high current densities
CH629542A5 (de) * 1976-09-01 1982-04-30 Inoue Japax Res Verfahren und vorrichtung zur galvanischen materialablagerung.
US4666567A (en) * 1981-07-31 1987-05-19 The Boeing Company Automated alternating polarity pulse electrolytic processing of electrically conductive substances

Also Published As

Publication number Publication date
EP0330722A1 (de) 1989-09-06
ATE72587T1 (de) 1992-02-15
IT8819644A0 (it) 1988-03-04
BR8901046A (pt) 1989-10-24
IT1215985B (it) 1990-02-22
EP0330722B1 (de) 1992-02-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee