Global Patent Index - EP 1060298 A1

EP 1060298 A1 2000-12-20 - GALVANIC COATINGS OF IRON-COBALT COMPOUNDS WITH CERAMIC PARTICLES

Title (en)

GALVANIC COATINGS OF IRON-COBALT COMPOUNDS WITH CERAMIC PARTICLES

Title (de)

GALVANISCHE ÜBERZÜGE VON EISEN-KOBALT-VERBINDUNGEN MIT KERAMISCHEN PARTIKELN

Title (fr)

REVETEMENT GALVANIQUE DE COMPOSE FER-COBALT AVEC DES PARTICULES DE CERAMIQUE

Publication

EP 1060298 A1 (EN)

Application

EP 99907964 A

Priority

  • NL 9900103 W
  • NL 1008426 A

Abstract (en)

[origin: WO9943872A1] The invention concerns a galvanic treatment of metal surfaces with layers, composed mainly of iron and/or cobalt, during the galvanic process iron and cobalt compounds are deposited. The coating is during the process also filled with hard ceramic particles. By a thermal treatment at about 350 degrees Celsius the coating develops a high resistance against wear, partly due to the hard ceramic particles. The coatings produced this way distinguish themselves by an extreme longwearing and low coefficient of friction especially with dry friction. Use of the coatings on sliding surfaces of cylinders and pistons of internal combustion engines and compressors augment the mechanical efficiency and the longevity increases considerably. Also the consumption of lubricants for engines decreases.

IPC 1-7 (main, further and additional classification)

C25D 15/02; C25D 5/50

IPC 8 full level (invention and additional information)

C25D 5/50 (2006.01); C25D 15/02 (2006.01)

CPC (invention and additional information)

C25D 5/50 (2013.01); C25D 15/02 (2013.01)

Citation (search report)

See references of WO 9943872A1

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI NL

EPO simple patent family

WO 9943872 A1 19990902; AU 2749399 A 19990915; EP 1060298 A1 20001220; NL 1008426 C2 19990830

INPADOC legal status


2004-11-03 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040422

2004-01-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20031211

2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000912

2000-12-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE FR GB IT LI NL