EP 1715083 A1 20061025 - METHOD FOR PRODUCING HEAVY HIGHLY ADHESIVE PROTECTIVE COATINGS ON VALVE-METAL PARTS BY MICRO-ARC OXIDATION
Title (en)
METHOD FOR PRODUCING HEAVY HIGHLY ADHESIVE PROTECTIVE COATINGS ON VALVE-METAL PARTS BY MICRO-ARC OXIDATION
Title (de)
VERFAHREN ZUR HERSTELLUNG VON SCHWEREN HOCHADHÄSIVEN SCHUTZBESCHICHTUNGEN AUF VENTILMETALLTEILEN DURCH MIKROLICHTBOGENOXIDATION
Title (fr)
PROCEDE DE FORMATION DE REVETEMENTS DE PROTECTION A DEGRE D'ADHERENCE ELEVE SUR DES PIECES FAITES DE METAUX UTILISES DANS DES VANNES EN MODE D'OXYDATION PAR ONDES MILLIMETRIQUES
Publication
Application
Priority
RU 2004000005 W 20040112
Abstract (en)
The invention relates to electrochemistry, in particular to anodizing parts made of valve metals such as aluminium, titanium, tantalum etc and alloys thereof and can be used for producing solid heat-resistant and wear-resistant coatings for mechanical engineering. A method consists in placing a part in an electrolyte on a current-conductive holder coated with an insulating material, producing a working voltage between said part and electrolyte and raising the voltage until a micro-arc discharge is originated on the part surface. The holder of the part is externally coated with an electroinsulating material at the air-electrolyte interface. The technical result of the invention is to produce by micro-arc oxidation heavy protective coatings which exhibit a high-hardness, have a low friction factor and a high adhesion to a base material on the parts made of the valve metals or alloys thereof.
IPC 8 full level
C25D 11/02 (2006.01)
CPC (source: EP US)
C25D 11/005 (2013.01 - EP US); C25D 11/026 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1715083 A1 20061025; EP 1715083 A4 20080521; CN 1954100 A 20070425; CN 1954100 B 20100428; JP 2007517983 A 20070705; JP 4365415 B2 20091118; US 2008283410 A1 20081120; WO 2005066394 A1 20050721
DOCDB simple family (application)
EP 04748894 A 20040112; CN 200480040288 A 20040112; JP 2006549176 A 20040112; RU 2004000005 W 20040112; US 58562404 A 20040112